Remove the pre-3.31 (.dat/.ndx) cache import

The zip cache replaced this format in 3.31 (2003); what remained was an
import-only parser for hostile input, compiled unconditionally, plus a
tail of dead code keyed to it: the CACHE-1.5 writer behind if(1), the
cross-session HTML-MD5 dedup (its store was never written in the zip
era), the legacy legs of the startup rotation (which silently renamed
or deleted a user's .dat/.ndx pair) and of hts_cache_reconcile.

cache_init now detects a legacy pair, logs a clear refusal, leaves the
files untouched, and re-crawls. The cache-legacy self-test pins refusal
for both layouts (--update old.* and ro new.*), no is_update flag, and
untouched files; proven end-to-end against the local server. The
cacheindex self-test and fuzz-cachendx stay: cache_brstr/cache_binput
still back the -#C cache listing.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Signed-off-by: Xavier Roche <roche@httrack.com>

.clang-format

@@ -16,6 +16,7 @@ BasedOnStyle: LLVM
 SpaceAfterCStyleCast: true   # "(int) x", overwhelmingly dominant (542 vs 7)
 SortIncludes: false          # C include order can be significant; never reorder
 IncludeBlocks: Preserve      # do not merge/reflow include groups
+SeparateDefinitionBlocks: Always  # blank line between definitions (readability)
 
 # Stated explicitly for robustness against base-style drift (these match LLVM):
 IndentWidth: 2

.flake8

@@ -0,0 +1,5 @@
+[flake8]
+# Match black's formatting so the two tools don't fight.
+max-line-length = 88
+# E203/W503 conflict with black's slice and line-break style.
+extend-ignore = E203, W503

.github/workflows/ci.yml

@@ -31,7 +31,7 @@ jobs:
     env:
       CC: ${{ matrix.cc }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           submodules: recursive
 
@@ -46,8 +46,8 @@ jobs:
       - name: Configure
         run: |
           set -euo pipefail
-          # autoreconf installs the automake test-driver (not committed) and
-          # validates configure.ac, so "make check" works on a fresh checkout.
+          # Regenerate from configure.ac/Makefile.am to validate them; the
+          # committed generated files already let a plain checkout build.
           autoreconf -fi
           ./configure
 
@@ -61,13 +61,380 @@ jobs:
         if: failure()
         run: cat tests/test-suite.log 2>/dev/null || true
 
+  # Reproduce the Debian buildds: they build in a minimal chroot with no
+  # python3, so the local-server tests must SKIP (exit 77), not fail. GitHub
+  # runners ship python3, so every other job hides this path; here we remove it
+  # before `make check`. This is the guard that would have caught the 3.49.10-1
+  # FTBFS (28_local-pause failed instead of skipping when python3 was absent).
+  buildd-no-python3:
+    name: build (no python3, Debian buildd)
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - name: Install build dependencies
+        run: |
+          set -euo pipefail
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends \
+            build-essential autoconf automake libtool autoconf-archive \
+            zlib1g-dev libssl-dev
+
+      - name: Configure
+        run: |
+          set -euo pipefail
+          autoreconf -fi
+          ./configure
+
+      - name: Build
+        run: make -j"$(nproc)"
+
+      - name: Test without python3
+        run: |
+          set -euo pipefail
+          # Hide every python3* so `command -v python3` fails like it does in the
+          # buildd chroot; masking with /bin/false would still resolve.
+          sudo find /usr/bin /usr/local/bin -maxdepth 1 -name 'python3*' \
+            -exec mv {} {}.hidden \;
+          ! command -v python3
+          make check
+
+      - name: Print the test log on failure
+        if: failure()
+        run: cat tests/test-suite.log 2>/dev/null || true
+
+  # Portability: build and test on macOS (Darwin/clang) on a native runner --
+  # no VM. The tree has no __APPLE__ branches, so Darwin exercises the
+  # generic-Unix path on a second libc and kernel. brew's openssl@3 is keg-only,
+  # so point configure at it; everything else is in the SDK or default paths.
+  macos:
+    name: build (macOS arm64, clang)
+    runs-on: macos-14
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - name: Install build dependencies
+        run: |
+          set -euo pipefail
+          brew install autoconf automake libtool autoconf-archive
+
+      - name: Configure
+        run: |
+          set -euo pipefail
+          ssl="$(brew --prefix openssl@3)"
+          autoreconf -fi
+          ./configure CPPFLAGS="-I${ssl}/include" LDFLAGS="-L${ssl}/lib"
+
+      - name: Build
+        run: make -j"$(sysctl -n hw.ncpu)"
+
+      - name: Test
+        run: make check
+
+      - name: Print the test log on failure
+        if: failure()
+        run: cat tests/test-suite.log 2>/dev/null || true
+
+  # Portability/hardening: 32-bit (i386) build on the x86-64 runner via multilib
+  # -- no extra hardware. Exercises the 32-bit size_t/pointer ABI, where size
+  # and bounds math can truncate or wrap in ways 64-bit never reveals (the axis
+  # the overflow-safe bounds work targets). --build (not --host) keeps configure
+  # out of cross mode, so the i386 binary still runs the test suite here.
+  linux-i386:
+    name: build (linux i386, gcc -m32)
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - name: Install build dependencies (multilib + 32-bit libs)
+        run: |
+          set -euo pipefail
+          sudo dpkg --add-architecture i386
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends \
+            build-essential gcc-multilib autoconf automake libtool \
+            autoconf-archive zlib1g-dev:i386 libssl-dev:i386
+
+      - name: Configure
+        run: |
+          set -euo pipefail
+          autoreconf -fi
+          ./configure --build=i686-pc-linux-gnu CC="gcc -m32"
+
+      - name: Build
+        run: make -j"$(nproc)"
+
+      - name: Test
+        run: make check
+
+      - name: Print the test log on failure
+        if: failure()
+        run: cat tests/test-suite.log 2>/dev/null || true
+
+  # Memory safety: build and run the suite under AddressSanitizer +
+  # UndefinedBehaviorSanitizer. The offline engine self-tests drive the parsers
+  # that chew on untrusted crawled input (charset, mime, HTML, entities, IDNA,
+  # filters, cache) straight through the sanitizers, so a buffer overrun,
+  # use-after-free, or signed overflow there fails the build instead of slipping
+  # past a plain -O2 build. gcc's runtimes; one job is enough (the bug class is
+  # arch-independent and the matrix already covers compile portability).
+  sanitize:
+    name: sanitize (ASan+UBSan, gcc)
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - name: Install build dependencies
+        run: |
+          set -euo pipefail
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends \
+            build-essential autoconf automake libtool autoconf-archive \
+            zlib1g-dev libssl-dev
+
+      - name: Configure (sanitized)
+        run: |
+          set -euo pipefail
+          autoreconf -fi
+          ./configure CC=gcc \
+            CFLAGS="-fsanitize=address,undefined -fno-sanitize-recover=all -g -O1 -fno-omit-frame-pointer" \
+            LDFLAGS="-fsanitize=address,undefined"
+
+      - name: Build
+        run: make -j"$(nproc)"
+
+      - name: Test (sanitized)
+        # Leaks at exit are out of scope (the CLI frees little on the way out);
+        # we want memory-safety errors, so turn leak detection off and make every
+        # other finding abort the run.
+        #
+        # Poison fresh allocations with 0xCA and freed blocks with 0xCB (decimal
+        # 202/203) so memory never reads back as accidental zeros: a missing-NUL
+        # fread buffer then runs strlen off into the redzone instead of stopping
+        # at a lucky zero. Distinct bytes tell the two apart in a dump (0xCA =
+        # uninitialized, 0xCB = use-after-free). ASan caps its malloc fill at 4096
+        # bytes by default, so max_malloc_fill_size lifts it to cover large cache
+        # buffers; free_fill flags use-after-free reads.
+        env:
+          ASAN_OPTIONS: detect_leaks=0:abort_on_error=1:halt_on_error=1:strict_string_checks=1:malloc_fill_byte=202:max_malloc_fill_size=2147483647:free_fill_byte=203:max_free_fill_size=2147483647
+          UBSAN_OPTIONS: print_stacktrace=1:halt_on_error=1
+        run: make check
+
+      - name: Print the test log on failure
+        if: failure()
+        run: cat tests/test-suite.log 2>/dev/null || true
+
+  # MemorySanitizer catches reads of uninitialized memory (#143's stack-garbage
+  # size filter) that ASan/UBSan miss. It flags any byte an uninstrumented lib
+  # wrote, so the job stays in our own code: offline self-tests only, no openssl
+  # (--disable-https), no zlib cache tests, static (the runtime is not in .so's).
+  msan:
+    name: msan (MemorySanitizer, clang)
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - name: Install build dependencies
+        run: |
+          set -euo pipefail
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends \
+            build-essential clang autoconf automake libtool autoconf-archive \
+            zlib1g-dev
+
+      - name: Configure (MSan, static, no https)
+        run: |
+          set -euo pipefail
+          autoreconf -fi
+          ./configure CC=clang \
+            CFLAGS="-fsanitize=memory -fsanitize-memory-track-origins=2 -fno-sanitize-recover=all -g -O1 -fno-omit-frame-pointer" \
+            LDFLAGS="-fsanitize=memory" \
+            --disable-https --disable-shared --enable-static
+
+      - name: Build
+        run: make -j"$(nproc)"
+
+      - name: Test (offline self-tests under MSan)
+        env:
+          MSAN_OPTIONS: abort_on_error=1:halt_on_error=1
+        run: |
+          set -euo pipefail
+          # 01_engine-* only; zlib-dependent self-tests are named 01_zlib-* and
+          # skipped here (uninstrumented libz floods MSan with false positives).
+          tests="$(cd tests && ls 01_engine-*.test | tr '\n' ' ')"
+          make check TESTS="$tests"
+
+      - name: Print the test log on failure
+        if: failure()
+        run: cat tests/test-suite.log 2>/dev/null || true
+
+  # libFuzzer smoke: build the fuzz/ harnesses over the pure hostile-input
+  # parsers and replay each seed corpus under ASan+UBSan+LeakSanitizer. Replay
+  # (not open-ended mutation) keeps CI deterministic -- it can't hit strjoker's
+  # catastrophic backtracking -- and pins the regression seeds for the bugs the
+  # fuzzers found. Deep discovery is a maintainer / OSS-Fuzz activity.
+  fuzz:
+    name: fuzz (libFuzzer corpus replay, clang)
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - name: Install build dependencies
+        run: |
+          set -euo pipefail
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends \
+            build-essential clang autoconf automake libtool autoconf-archive \
+            zlib1g-dev libssl-dev
+
+      - name: Configure (fuzzers, static)
+        run: |
+          set -euo pipefail
+          autoreconf -fi
+          ./configure CC=clang \
+            CFLAGS="-fsanitize=address,undefined -fno-sanitize-recover=all -g -O1 -fno-omit-frame-pointer" \
+            LDFLAGS="-fsanitize=address,undefined" \
+            --enable-fuzzers --disable-shared
+
+      - name: Build
+        run: make -j"$(nproc)"
+
+      - name: Replay corpora
+        env:
+          ASAN_OPTIONS: detect_leaks=1:abort_on_error=1:halt_on_error=1
+          UBSAN_OPTIONS: print_stacktrace=1:halt_on_error=1
+        run: bash fuzz/run-fuzzers.sh fuzz check
+
+  # Optional-dependency build: compile and test with HTTPS/OpenSSL disabled --
+  # the configuration users on minimal systems build, and one libssl is not even
+  # installed here so configure cannot silently re-enable it. The matrix above
+  # always has libssl, so the #if HTS_USEOPENSSL branches would otherwise never
+  # be compiled and could rot unnoticed.
+  no-ssl:
+    name: build (no openssl, --disable-https)
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - name: Install build dependencies (no libssl)
+        run: |
+          set -euo pipefail
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends \
+            build-essential autoconf automake libtool autoconf-archive zlib1g-dev
+
+      - name: Configure (https disabled)
+        run: |
+          set -euo pipefail
+          autoreconf -fi
+          ./configure --disable-https
+
+      - name: Build
+        run: make -j"$(nproc)"
+
+      - name: Test
+        run: make check
+
+      - name: Print the test log on failure
+        if: failure()
+        run: cat tests/test-suite.log 2>/dev/null || true
+
+  # Validate the Debian packaging via the same script maintainers release with.
+  # One amd64/gcc run is enough: packaging (control/rules/manifest/lintian/quilt
+  # source build) is arch- and compiler-independent, and the build matrix above
+  # already covers compile portability. mkdeb.sh runs lintian as an explicit gate
+  # (debuild does not propagate lintian's exit) with --fail-on=error,warning.
+  deb:
+    name: deb package (lintian)
+    runs-on: ubuntu-24.04
+    # Build and gate inside Debian sid, the upload target. A Debian dpkg-deb
+    # produces archive-legal xz members (an Ubuntu host defaults to zstd, which
+    # the archive's lintian rejects), and sid's lintian carries the same
+    # data-driven checks (embedded-lib fingerprints and the like) the buildds and
+    # UDD apply -- so issues surface here instead of after upload.
+    container: debian:sid
+    steps:
+      - name: Install packaging toolchain
+        run: |
+          set -euo pipefail
+          apt-get update
+          apt-get install -y --no-install-recommends \
+            ca-certificates git \
+            build-essential autoconf automake libtool autoconf-archive \
+            zlib1g-dev libssl-dev \
+            debhelper devscripts lintian fakeroot
+
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      # --unsigned: CI has no GPG key (also skips the release sig/checksums).
+      # mkdeb builds every package then runs the lintian gate (--fail-on=error,
+      # warning); debuild runs the packaged test pass.
+      #
+      # DEB_BUILD_OPTIONS trims work CI does not need (release builds via
+      # mkdeb.sh are untouched): noautodbgsym drops the -dbgsym packages whose
+      # LTO payloads are slow to compress and that CI never ships; parallel uses
+      # every core.
+      - name: Build and lint Debian packages
+        run: |
+          set -euo pipefail
+          # The workspace volume is owned by the host runner uid, but the
+          # container runs as root, so mkdeb's git calls (superproject and the
+          # coucal submodule) trip "dubious ownership"; mark them all safe.
+          git config --global --add safe.directory "*"
+          export DEB_BUILD_OPTIONS="noautodbgsym parallel=$(nproc)"
+          bash tools/mkdeb.sh --unsigned --no-release-artifacts
+
+  # Release-tarball integrity: `make distcheck` rolls the dist tarball, then
+  # configures, builds and tests it out-of-tree from a read-only source tree and
+  # checks nothing is left behind. Catches a file referenced in *_SOURCES or
+  # EXTRA_DIST but missing from the tarball -- the same "ships broken to users"
+  # class as a stale committed Makefile.in.
+  distcheck:
+    name: distcheck (release tarball)
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - name: Install build dependencies
+        run: |
+          set -euo pipefail
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends \
+            build-essential autoconf automake libtool autoconf-archive \
+            zlib1g-dev libssl-dev
+
+      - name: distcheck
+        run: |
+          set -euo pipefail
+          autoreconf -fi
+          ./configure
+          make -j"$(nproc)" distcheck
+
   dco:
     name: DCO sign-off
     # Only checkable on a PR, where we have the base..head commit range.
     if: github.event_name == 'pull_request'
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -95,27 +462,38 @@ jobs:
   lint:
     name: lint (shellcheck, shfmt)
     runs-on: ubuntu-24.04
+    # Every tracked shell script; the globs expand at run time. Kept here so the
+    # shellcheck and shfmt steps below cannot drift apart.
+    env:
+      SHELL_SCRIPTS: >-
+        .githooks/pre-commit
+        bootstrap
+        build.sh
+        html/div/search.sh
+        man/makeman.sh
+        src/htsbasiccharsets.sh
+        src/htsentities.sh
+        src/webhttrack
+        tests/*.sh
+        tests/*.test
+        tools/mkdeb.sh
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install linters
-        env:
-          SHFMT_VERSION: v3.8.0
         run: |
           set -euo pipefail
           sudo apt-get update
-          sudo apt-get install -y --no-install-recommends shellcheck
-          # shfmt is not packaged in apt; fetch a pinned release binary.
-          curl -fsSL -o /tmp/shfmt \
-            "https://github.com/mvdan/sh/releases/download/${SHFMT_VERSION}/shfmt_${SHFMT_VERSION}_linux_$(dpkg --print-architecture)"
-          sudo install -m 0755 /tmp/shfmt /usr/local/bin/shfmt
+          # noble ships shfmt 3.8.0 (universe), matching the pinned local dev
+          # version; use it rather than fetching a release binary from github.com.
+          sudo apt-get install -y --no-install-recommends shellcheck shfmt
+          shfmt --version
 
-      # Lint the scripts we maintain; the legacy scripts are a separate cleanup.
       - name: shellcheck
-        run: shellcheck man/makeman.sh tools/mkdeb.sh .githooks/pre-commit tests/*.test tests/check-network.sh
+        run: shellcheck $SHELL_SCRIPTS
 
       - name: shfmt
-        run: shfmt -d -i 4 man/makeman.sh tools/mkdeb.sh .githooks/pre-commit
+        run: shfmt -d -i 4 $SHELL_SCRIPTS
 
   # Check clang-format on CHANGED LINES ONLY. The engine predates clang-format
   # (it was shaped by an old Visual Studio formatter) and does not round-trip,
@@ -125,7 +503,7 @@ jobs:
     if: github.event_name == 'pull_request'
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -139,11 +517,9 @@ jobs:
             | sudo tee /etc/apt/sources.list.d/llvm-19.list >/dev/null
           sudo apt-get update
           sudo apt-get install -y --no-install-recommends clang-format-19
-          # git-clang-format driver, pinned to an immutable release tag (not a
-          # moving branch) since we curl and then execute it.
-          sudo curl -fsSL -o /usr/local/bin/git-clang-format \
-            https://raw.githubusercontent.com/llvm/llvm-project/llvmorg-19.1.7/clang/tools/clang-format/git-clang-format
-          sudo chmod 0755 /usr/local/bin/git-clang-format
+          # The clang-format-19 package ships the git-clang-format driver;
+          # expose it unsuffixed so "git clang-format" finds it.
+          sudo ln -sf /usr/bin/git-clang-format-19 /usr/local/bin/git-clang-format
           clang-format-19 --version
 
       - name: Check formatting of changed lines
@@ -157,10 +533,9 @@ jobs:
                     --diff --extensions c,h "$base")"
           rc=$?
           set -e
-          # Classify by output first: a non-empty diff means "not clean",
-          # regardless of the driver's exit convention (the release-tag driver
-          # exits 0 and signals via stdout; some packaged drivers exit 1 on a
-          # diff). A nonzero exit with clean output is a real checker error.
+          # Classify by output, not exit code: a non-empty diff means "not
+          # clean" (git-clang-format may exit 0 or 1 on a diff). A nonzero exit
+          # with clean output is a real checker error.
           case "$diff" in
             "" | "no modified files to format" | *"did not modify any files"*)
               if [ "$rc" -ne 0 ]; then

.github/workflows/codeql.yml

@@ -0,0 +1,57 @@
+# CodeQL static analysis (C). The security-extended suite covers the classes
+# this codebase actually fights: overflows, tainted-size allocs, format bugs.
+name: CodeQL
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+  schedule:
+    # Weekly re-scan of master so new/updated queries land without a push.
+    - cron: "17 4 * * 1"
+
+permissions:
+  contents: read
+
+concurrency:
+  group: codeql-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  analyze:
+    name: analyze (c-cpp)
+    runs-on: ubuntu-24.04
+    permissions:
+      contents: read
+      # Upload findings to the repo's code-scanning dashboard.
+      security-events: write
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - name: Install build dependencies
+        run: |
+          set -euo pipefail
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends \
+            build-essential autoconf automake libtool autoconf-archive \
+            zlib1g-dev libssl-dev
+
+      - uses: github/codeql-action/init@v4
+        with:
+          languages: c-cpp
+          build-mode: manual
+          queries: security-extended
+
+      # Manual build: CodeQL traces the compiler, so build exactly what ships.
+      - name: Build
+        run: |
+          set -euo pipefail
+          autoreconf -fi
+          ./configure
+          make -j"$(nproc)"
+
+      - uses: github/codeql-action/analyze@v4
+        with:
+          category: "/language:c-cpp"

.gitignore

@@ -0,0 +1,45 @@
+# Generated by autoreconf/bootstrap (run ./bootstrap after a fresh clone).
+# Release tarballs ("make dist") ship these; the git tree does not.
+/configure
+/config.h.in
+/config.h.in~
+/aclocal.m4
+/ltmain.sh
+/libtool
+/config.guess
+/config.sub
+/install-sh
+/missing
+/depcomp
+/compile
+/ar-lib
+/test-driver
+/autom4te.cache/
+/m4/libtool.m4
+/m4/lt*.m4
+Makefile.in
+
+# Generated by configure / make.
+/config.h
+/config.log
+/config.status
+/stamp-h1
+Makefile
+.deps/
+.libs/
+*.o
+*.lo
+*.la
+*.so
+*.so.*
+*.a
+
+# make dist output; dist/ holds httrack-gh-release staging artifacts.
+/httrack-*.tar.gz
+/dist/
+
+# Editor / autotools backup files.
+*~
+
+# Python bytecode (tests/local-server.py).
+__pycache__/

AGENTS.md

@@ -0,0 +1,73 @@
+# AGENTS.md — working in the HTTrack tree
+
+Policy and PR etiquette live in [CONTRIBUTING.md](CONTRIBUTING.md). This file is
+the operational checklist: toolchain, invariants, and how to ship a change.
+
+## Build & test
+- Fresh clone first: `git submodule update --init src/coucal`
+- `./bootstrap` (regenerates `configure` via `autoreconf`; needs autoconf,
+  automake, libtool), then `bash configure && make && make check`. Or run
+  `sh build.sh` to do bootstrap + configure + make in one shot.
+
+## Hard invariants
+- **Generated autotools files are NOT in git.** `configure`, every
+  `Makefile.in`, `config.h.in`, `ltmain.sh`, `config.guess/sub`, and the aux
+  scripts are build products: `.gitignore`d, regenerated by `./bootstrap`, and
+  shipped only in `make dist` tarballs (so tarball users still need no
+  autotools). Never commit them. After editing `configure.ac`, any
+  `Makefile.am`, or `m4/`, just commit those sources — re-run `./bootstrap`
+  locally to rebuild and test, but do not stage the regenerated output.
+- **Format only changed lines** with `git clang-format` (clang-format 19). Never
+  reformat untouched code: the engine was formatted by an old tool and won't
+  round-trip.
+- **Byte-safe edits.** Files with raw high bytes are ISO-8859-1 (French
+  comments). Edit them byte-wise (`perl -0pi`, `sed`), not through a tool that
+  re-encodes to UTF-8 and corrupts them.
+
+## Security (HTTrack parses hostile input off the network)
+- Bounds-check every copy. Overflow-safe form: put the untrusted value alone,
+  `untrusted < limit - controlled` — never `controlled + untrusted < limit`,
+  which can wrap and pass.
+
+## Code & prose
+- Be terse. Comment the why, in English; translate French comments you touch.
+- Strip AI tells from prose (em-dash overuse, rule-of-three, filler, vague
+  attributions). Ref: Wikipedia "Signs of AI writing". Claude Code: `/humanizer`.
+- Behavior change → add a test. Fast path: a hidden `httrack -#test=NAME` engine
+  self-test (registry in `htsselftest.c`; `-#test` lists them) driven by a
+  `tests/NN_*.test`, over a slow crawl.
+
+## Review your change adversarially (strongly suggested)
+Before pushing, and when reviewing others, don't skim for bugs:
+- **One invariant at a time.** Name a property the diff must preserve (bounds
+  hold, cache/wire format unchanged, no use-after-free, ABI stable), then
+  construct inputs that would break it. "General correctness" is not a charter.
+- **Audit tests against the spec, not the code.** For each new test ask: "what
+  buggy path would still pass this?" If you can build one, the test is
+  confirmation-biased: assertions copied from observed output lock bugs in.
+- **Risk areas need runtime probes.** Touching hostile-input parsing, struct
+  layout/ABI, cache/wire format, or a security path? A static or unit check
+  isn't enough; exercise the wrong behavior at runtime. Claude Code:
+  `/review-recipe`.
+
+## Commits
+- **Sign-off is mandatory.** Every commit carries a `Signed-off-by` trailer:
+  `git commit -s` (DCO, CI-enforced — unsigned commits are rejected).
+- **Co-Authored-By is mandatory for AI-assisted commits.** Carry a
+  `Co-Authored-By:` trailer naming the assistant. Attribute there, never in a
+  PR-body footer.
+- PRs land as a merge commit; every commit on the branch goes onto master, so
+  keep each commit message clean and meaningful.
+
+## PR descriptions
+- Plain concise prose; lead with what changed and why. No What/Why/How template.
+- Title names the problem, not the implementation.
+- Don't restate the diff — give what it can't show: motivation, context,
+  tradeoffs, risk.
+- Length tracks the change: a typo is one sentence; a security fix earns a writeup.
+- Verify claims against the code before you write them; flag drift, don't repeat it.
+- Don't hard-wrap (GitHub reflows). No "Generated with Claude" footer. Run the
+  prose through `/humanizer`.
+
+## Toolchain
+C · clang-format-19 · autoreconf · shfmt + shellcheck (shell) · black + flake8 (Python)

CLAUDE.md

@@ -0,0 +1 @@
+@AGENTS.md

CONTRIBUTING.md

@@ -1,12 +1,15 @@
 # Contributing to HTTrack
 
-HTTrack is small and old. Keep changes easy to review and safe to merge.
+HTTrack is small and old. Keep changes easy to review and safe to merge. Working
+with an AI assistant? The operational checklist is [AGENTS.md](AGENTS.md).
 
 ## Pull requests
 
 - One change per PR. Small diffs merge fast.
-- PRs are squash-merged: the title and description become the commit message, so
-  explain *why*.
+- PRs land as a merge commit, so the branch's commits go onto master as-is: keep
+  each commit message clean and explain *why*.
+- Be terse in the PR title and description: name the problem, not the fix, don't
+  restate the diff, and calibrate length to the change.
 - Add or update tests for engine changes (`tests/`), and keep CI green.
 
 ## Style
@@ -30,9 +33,16 @@ Welcome, and nothing to disclose. Two rules:
 - **Own every line** as if you wrote it. Can't explain it in review? Not ready.
 - **Don't push your work onto reviewers.** A raw generated patch a maintainer has
   to vet from scratch will be closed.
+- **Attribution is mandatory.** AI-assisted commits must carry a
+  `Co-Authored-By:` trailer naming the assistant, not a footer in the PR
+  description.
 
 The sign-off covers AI-assisted code too.
 
+## Translations
+
+Interface strings live in [`lang/`](lang/). See [lang/README.md](lang/README.md) for the file format and how to add or update a language.
+
 ## Bugs
 
 Open an issue with the version, OS, command used, and expected vs actual result.

INSTALL

@@ -1,177 +1,177 @@
 Installation Instructions
 *************************
 
-   Copyright (C) 1994-1996, 1999-2002, 2004-2017, 2020-2021 Free
-Software Foundation, Inc.
-
-   Copying and distribution of this file, with or without modification,
-are permitted in any medium without royalty provided the copyright
-notice and this notice are preserved.  This file is offered as-is,
-without warranty of any kind.
-
 Basic Installation
 ==================
 
-   Briefly, the shell command './configure && make && make install'
-should configure, build, and install this package.  The following
-more-detailed instructions are generic; see the 'README' file for
-instructions specific to this package.  Some packages provide this
-'INSTALL' file but do not implement all of the features documented
-below.  The lack of an optional feature in a given package is not
-necessarily a bug.  More recommendations for GNU packages can be found
-in *note Makefile Conventions: (standards)Makefile Conventions.
+   The following shell commands:
 
-   The 'configure' shell script attempts to guess correct values for
+     test -f configure || ./bootstrap
+     ./configure
+     make
+     make install
+
+should configure, build, and install this package.  The first line,
+which bootstraps, is intended for developers; when building from
+distribution tarballs it does nothing and can be skipped.
+
+   The following more-detailed instructions are generic; see the
+‘README’ file for instructions specific to this package.  Some packages
+provide this ‘INSTALL’ file but do not implement all of the features
+documented below.  The lack of an optional feature in a given package is
+not necessarily a bug.  More recommendations for GNU packages can be
+found in the GNU Coding Standards.
+
+   Many packages have scripts meant for developers instead of ordinary
+builders, as they may use developer tools that are less commonly
+installed, or they may access the network, which has privacy
+implications.  If the ‘bootstrap’ shell script exists, it attempts to
+build the ‘configure’ shell script and related files, possibly using
+developer tools or the network.  Because the output of ‘bootstrap’ is
+system-independent, it is normally run by a package developer so that
+its output can be put into the distribution tarball and ordinary
+builders and users need not run ‘bootstrap’.  Some packages have
+commands like ‘./autopull.sh’ and ‘./autogen.sh’ that you can run
+instead of ‘./bootstrap’, for more fine-grained control over
+bootstrapping.
+
+   The ‘configure’ shell script attempts to guess correct values for
 various system-dependent variables used during compilation.  It uses
-those values to create a 'Makefile' in each directory of the package.
-It may also create one or more '.h' files containing system-dependent
-definitions.  Finally, it creates a shell script 'config.status' that
+those values to create a ‘Makefile’ in each directory of the package.
+It may also create one or more ‘.h’ files containing system-dependent
+definitions.  Finally, it creates a shell script ‘config.status’ that
 you can run in the future to recreate the current configuration, and a
-file 'config.log' containing compiler output (useful mainly for
-debugging 'configure').
+file ‘config.log’ containing output useful for debugging ‘configure’.
 
-   It can also use an optional file (typically called 'config.cache' and
-enabled with '--cache-file=config.cache' or simply '-C') that saves the
+   It can also use an optional file (typically called ‘config.cache’ and
+enabled with ‘--cache-file=config.cache’ or simply ‘-C’) that saves the
 results of its tests to speed up reconfiguring.  Caching is disabled by
 default to prevent problems with accidental use of stale cache files.
 
    If you need to do unusual things to compile the package, please try
-to figure out how 'configure' could check whether to do them, and mail
-diffs or instructions to the address given in the 'README' so they can
+to figure out how ‘configure’ could check whether to do them, and mail
+diffs or instructions to the address given in the ‘README’ so they can
 be considered for the next release.  If you are using the cache, and at
-some point 'config.cache' contains results you don't want to keep, you
+some point ‘config.cache’ contains results you don’t want to keep, you
 may remove or edit it.
 
-   The file 'configure.ac' (or 'configure.in') is used to create
-'configure' by a program called 'autoconf'.  You need 'configure.ac' if
-you want to change it or regenerate 'configure' using a newer version of
-'autoconf'.
+   The ‘autoconf’ program generates ‘configure’ from the file
+‘configure.ac’.  Normally you should edit ‘configure.ac’ instead of
+editing ‘configure’ directly.
 
    The simplest way to compile this package is:
 
-  1. 'cd' to the directory containing the package's source code and type
-     './configure' to configure the package for your system.
+  1. ‘cd’ to the directory containing the package’s source code.
 
-     Running 'configure' might take a while.  While running, it prints
-     some messages telling which features it is checking for.
+  2. If this is a developer checkout and file ‘configure’ does not yet
+     exist, type ‘./bootstrap’ to create it.  You may need special
+     developer tools and network access to bootstrap, and the network
+     access may have privacy implications.
 
-  2. Type 'make' to compile the package.
+  3. Type ‘./configure’ to configure the package for your system.  This
+     might take a while.  While running, ‘configure’ prints messages
+     telling which features it is checking for.
 
-  3. Optionally, type 'make check' to run any self-tests that come with
+  4. Type ‘make’ to compile the package.
+
+  5. Optionally, type ‘make check’ to run any self-tests that come with
      the package, generally using the just-built uninstalled binaries.
 
-  4. Type 'make install' to install the programs and any data files and
+  6. Type ‘make install’ to install the programs and any data files and
      documentation.  When installing into a prefix owned by root, it is
      recommended that the package be configured and built as a regular
-     user, and only the 'make install' phase executed with root
+     user, and only the ‘make install’ phase executed with root
      privileges.
 
-  5. Optionally, type 'make installcheck' to repeat any self-tests, but
+  7. Optionally, type ‘make installcheck’ to repeat any self-tests, but
      this time using the binaries in their final installed location.
      This target does not install anything.  Running this target as a
-     regular user, particularly if the prior 'make install' required
+     regular user, particularly if the prior ‘make install’ required
      root privileges, verifies that the installation completed
      correctly.
 
-  6. You can remove the program binaries and object files from the
-     source code directory by typing 'make clean'.  To also remove the
-     files that 'configure' created (so you can compile the package for
-     a different kind of computer), type 'make distclean'.  There is
-     also a 'make maintainer-clean' target, but that is intended mainly
-     for the package's developers.  If you use it, you may have to get
-     all sorts of other programs in order to regenerate files that came
-     with the distribution.
+  8. You can remove the program binaries and object files from the
+     source code directory by typing ‘make clean’.  To also remove the
+     files that ‘configure’ created (so you can compile the package for
+     a different kind of computer), type ‘make distclean’.  There is
+     also a ‘make maintainer-clean’ target, but that is intended mainly
+     for the package’s developers.  If you use it, you may have to
+     bootstrap again.
 
-  7. Often, you can also type 'make uninstall' to remove the installed
-     files again.  In practice, not all packages have tested that
-     uninstallation works correctly, even though it is required by the
-     GNU Coding Standards.
-
-  8. Some packages, particularly those that use Automake, provide 'make
-     distcheck', which can by used by developers to test that all other
-     targets like 'make install' and 'make uninstall' work correctly.
-     This target is generally not run by end users.
+  9. If the package follows the GNU Coding Standards, you can type ‘make
+     uninstall’ to remove the installed files.
 
 Compilers and Options
 =====================
 
    Some systems require unusual options for compilation or linking that
-the 'configure' script does not know about.  Run './configure --help'
+the ‘configure’ script does not know about.  Run ‘./configure --help’
 for details on some of the pertinent environment variables.
 
-   You can give 'configure' initial values for configuration parameters
+   You can give ‘configure’ initial values for configuration parameters
 by setting variables in the command line or in the environment.  Here is
 an example:
 
-     ./configure CC=c99 CFLAGS=-g LIBS=-lposix
+     ./configure CC=gcc CFLAGS=-g LIBS=-lposix
 
-   *Note Defining Variables::, for more details.
+   See “Defining Variables” for more details.
 
 Compiling For Multiple Architectures
 ====================================
 
    You can compile the package for more than one kind of computer at the
-same time, by placing the object files for each architecture in their
-own directory.  To do this, you can use GNU 'make'.  'cd' to the
-directory where you want the object files and executables to go and run
-the 'configure' script.  'configure' automatically checks for the source
-code in the directory that 'configure' is in and in '..'.  This is known
-as a "VPATH" build.
+same time, by placing the object files for each system in their own
+directory.  To do this, you can use GNU ‘make’.  ‘cd’ to the directory
+where you want the object files and executables to go and run the
+‘configure’ script.  ‘configure’ automatically checks for the source
+code in the directory that ‘configure’ is in and in ‘..’.  This is known
+as a “VPATH” build.
 
-   With a non-GNU 'make', it is safer to compile the package for one
-architecture at a time in the source code directory.  After you have
-installed the package for one architecture, use 'make distclean' before
-reconfiguring for another architecture.
+   With a non-GNU ‘make’, it is safer to compile the package for one
+system at a time in the source code directory.  After you have installed
+the package for one system, use ‘make distclean’ before reconfiguring
+for another system.
 
-   On MacOS X 10.5 and later systems, you can create libraries and
-executables that work on multiple system types--known as "fat" or
-"universal" binaries--by specifying multiple '-arch' options to the
-compiler but only a single '-arch' option to the preprocessor.  Like
-this:
-
-     ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
-                 CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
-                 CPP="gcc -E" CXXCPP="g++ -E"
-
-   This is not guaranteed to produce working output in all cases, you
-may have to build one architecture at a time and combine the results
-using the 'lipo' tool if you have problems.
+   Some platforms, notably macOS, support “fat” or “universal” binaries,
+where a single binary can execute on different architectures.  On these
+platforms you can configure and compile just once, with options specific
+to that platform.
 
 Installation Names
 ==================
 
-   By default, 'make install' installs the package's commands under
-'/usr/local/bin', include files under '/usr/local/include', etc.  You
-can specify an installation prefix other than '/usr/local' by giving
-'configure' the option '--prefix=PREFIX', where PREFIX must be an
+   By default, ‘make install’ installs the package’s commands under
+‘/usr/local/bin’, include files under ‘/usr/local/include’, etc.  You
+can specify an installation prefix other than ‘/usr/local’ by giving
+‘configure’ the option ‘--prefix=PREFIX’, where PREFIX must be an
 absolute file name.
 
    You can specify separate installation prefixes for
 architecture-specific files and architecture-independent files.  If you
-pass the option '--exec-prefix=PREFIX' to 'configure', the package uses
+pass the option ‘--exec-prefix=PREFIX’ to ‘configure’, the package uses
 PREFIX as the prefix for installing programs and libraries.
 Documentation and other data files still use the regular prefix.
 
    In addition, if you use an unusual directory layout you can give
-options like '--bindir=DIR' to specify different values for particular
-kinds of files.  Run 'configure --help' for a list of the directories
+options like ‘--bindir=DIR’ to specify different values for particular
+kinds of files.  Run ‘configure --help’ for a list of the directories
 you can set and what kinds of files go in them.  In general, the default
-for these options is expressed in terms of '${prefix}', so that
-specifying just '--prefix' will affect all of the other directory
+for these options is expressed in terms of ‘${prefix}’, so that
+specifying just ‘--prefix’ will affect all of the other directory
 specifications that were not explicitly provided.
 
    The most portable way to affect installation locations is to pass the
-correct locations to 'configure'; however, many packages provide one or
+correct locations to ‘configure’; however, many packages provide one or
 both of the following shortcuts of passing variable assignments to the
-'make install' command line to change installation locations without
+‘make install’ command line to change installation locations without
 having to reconfigure or recompile.
 
    The first method involves providing an override variable for each
-affected directory.  For example, 'make install
-prefix=/alternate/directory' will choose an alternate location for all
+affected directory.  For example, ‘make install
+prefix=/alternate/directory’ will choose an alternate location for all
 directory configuration variables that were expressed in terms of
-'${prefix}'.  Any directories that were specified during 'configure',
-but not in terms of '${prefix}', must each be overridden at install time
+‘${prefix}’.  Any directories that were specified during ‘configure’,
+but not in terms of ‘${prefix}’, must each be overridden at install time
 for the entire installation to be relocated.  The approach of makefile
 variable overrides for each directory variable is required by the GNU
 Coding Standards, and ideally causes no recompilation.  However, some
@@ -179,190 +179,187 @@ platforms have known limitations with the semantics of shared libraries
 that end up requiring recompilation when using this method, particularly
 noticeable in packages that use GNU Libtool.
 
-   The second method involves providing the 'DESTDIR' variable.  For
-example, 'make install DESTDIR=/alternate/directory' will prepend
-'/alternate/directory' before all installation names.  The approach of
-'DESTDIR' overrides is not required by the GNU Coding Standards, and
+   The second method involves providing the ‘DESTDIR’ variable.  For
+example, ‘make install DESTDIR=/alternate/directory’ will prepend
+‘/alternate/directory’ before all installation names.  The approach of
+‘DESTDIR’ overrides is not required by the GNU Coding Standards, and
 does not work on platforms that have drive letters.  On the other hand,
 it does better at avoiding recompilation issues, and works well even
-when some directory options were not specified in terms of '${prefix}'
-at 'configure' time.
+when some directory options were not specified in terms of ‘${prefix}’
+at ‘configure’ time.
 
 Optional Features
 =================
 
    If the package supports it, you can cause programs to be installed
-with an extra prefix or suffix on their names by giving 'configure' the
-option '--program-prefix=PREFIX' or '--program-suffix=SUFFIX'.
+with an extra prefix or suffix on their names by giving ‘configure’ the
+option ‘--program-prefix=PREFIX’ or ‘--program-suffix=SUFFIX’.
 
-   Some packages pay attention to '--enable-FEATURE' options to
-'configure', where FEATURE indicates an optional part of the package.
-They may also pay attention to '--with-PACKAGE' options, where PACKAGE
-is something like 'gnu-as' or 'x' (for the X Window System).  The
-'README' should mention any '--enable-' and '--with-' options that the
-package recognizes.
-
-   For packages that use the X Window System, 'configure' can usually
-find the X include and library files automatically, but if it doesn't,
-you can use the 'configure' options '--x-includes=DIR' and
-'--x-libraries=DIR' to specify their locations.
+   Some packages pay attention to ‘--enable-FEATURE’ and
+‘--disable-FEATURE’ options to ‘configure’, where FEATURE indicates an
+optional part of the package.  They may also pay attention to
+‘--with-PACKAGE’ and ‘--without-PACKAGE’ options, where PACKAGE is
+something like ‘gnu-ld’.  ‘./configure --help’ should mention the
+‘--enable-...’ and ‘--with-...’ options that the package recognizes.
 
    Some packages offer the ability to configure how verbose the
-execution of 'make' will be.  For these packages, running './configure
---enable-silent-rules' sets the default to minimal output, which can be
-overridden with 'make V=1'; while running './configure
---disable-silent-rules' sets the default to verbose, which can be
-overridden with 'make V=0'.
+execution of ‘make’ will be.  For these packages, running ‘./configure
+--enable-silent-rules’ sets the default to minimal output, which can be
+overridden with ‘make V=1’; while running ‘./configure
+--disable-silent-rules’ sets the default to verbose, which can be
+overridden with ‘make V=0’.
 
-Particular systems
-==================
+Specifying a System Type
+========================
 
-   On HP-UX, the default C compiler is not ANSI C compatible.  If GNU CC
-is not installed, it is recommended to use the following options in
-order to use an ANSI C compiler:
+   By default ‘configure’ builds for the current system.  To create
+binaries that can run on a different system type, specify a
+‘--host=TYPE’ option along with compiler variables that specify how to
+generate object code for TYPE.  For example, to create binaries intended
+to run on a 64-bit ARM processor:
 
-     ./configure CC="cc -Ae -D_XOPEN_SOURCE=500"
+     ./configure --host=aarch64-linux-gnu \
+        CC=aarch64-linux-gnu-gcc \
+        CXX=aarch64-linux-gnu-g++
 
-and if that doesn't work, install pre-built binaries of GCC for HP-UX.
+If done on a machine that can execute these binaries (e.g., via
+‘qemu-aarch64’, ‘$QEMU_LD_PREFIX’, and Linux’s ‘binfmt_misc’
+capability), the build behaves like a native build.  Otherwise it is a
+cross-build: ‘configure’ will make cross-compilation guesses instead of
+running test programs, and ‘make check’ will not work.
 
-   HP-UX 'make' updates targets which have the same timestamps as their
-prerequisites, which makes it generally unusable when shipped generated
-files such as 'configure' are involved.  Use GNU 'make' instead.
+   A system type can either be a short name like ‘mingw64’, or a
+canonical name like ‘x86_64-pc-linux-gnu’.  Canonical names have the
+form CPU-COMPANY-SYSTEM where SYSTEM is either OS or KERNEL-OS.  To
+canonicalize and validate a system type, you can run the command
+‘config.sub’, which is often squirreled away in a subdirectory like
+‘build-aux’.  For example:
 
-   On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot
-parse its '<wchar.h>' header file.  The option '-nodtk' can be used as a
-workaround.  If GNU CC is not installed, it is therefore recommended to
-try
+     $ build-aux/config.sub arm64-linux
+     aarch64-unknown-linux-gnu
+     $ build-aux/config.sub riscv-lnx
+     Invalid configuration 'riscv-lnx': OS 'lnx' not recognized
 
-     ./configure CC="cc"
+You can look at the ‘config.sub’ file to see which types are recognized.
+If the file is absent, this package does not need the system type.
 
-and if that doesn't work, try
+   If ‘configure’ fails with the diagnostic “cannot guess build type”.
+‘config.sub’ did not recognize your system’s type.  In this case, first
+fetch the newest versions of these files from the GNU config package
+(https://savannah.gnu.org/projects/config).  If that fixes things,
+please report it to the maintainers of the package containing
+‘configure’.  Otherwise, you can try the configure option ‘--build=TYPE’
+where TYPE comes close to your system type; also, please report the
+problem to <config-patches@gnu.org>.
 
-     ./configure CC="cc -nodtk"
-
-   On Solaris, don't put '/usr/ucb' early in your 'PATH'.  This
-directory contains several dysfunctional programs; working variants of
-these programs are available in '/usr/bin'.  So, if you need '/usr/ucb'
-in your 'PATH', put it _after_ '/usr/bin'.
-
-   On Haiku, software installed for all users goes in '/boot/common',
-not '/usr/local'.  It is recommended to use the following options:
-
-     ./configure --prefix=/boot/common
-
-Specifying the System Type
-==========================
-
-   There may be some features 'configure' cannot figure out
-automatically, but needs to determine by the type of machine the package
-will run on.  Usually, assuming the package is built to be run on the
-_same_ architectures, 'configure' can figure that out, but if it prints
-a message saying it cannot guess the machine type, give it the
-'--build=TYPE' option.  TYPE can either be a short name for the system
-type, such as 'sun4', or a canonical name which has the form:
-
-     CPU-COMPANY-SYSTEM
-
-where SYSTEM can have one of these forms:
-
-     OS
-     KERNEL-OS
-
-   See the file 'config.sub' for the possible values of each field.  If
-'config.sub' isn't included in this package, then this package doesn't
-need to know the machine type.
-
-   If you are _building_ compiler tools for cross-compiling, you should
-use the option '--target=TYPE' to select the type of system they will
-produce code for.
-
-   If you want to _use_ a cross compiler, that generates code for a
-platform different from the build platform, you should specify the
-"host" platform (i.e., that on which the generated programs will
-eventually be run) with '--host=TYPE'.
+   For more details about configuring system types, see the Autoconf
+documentation.
 
 Sharing Defaults
 ================
 
-   If you want to set default values for 'configure' scripts to share,
-you can create a site shell script called 'config.site' that gives
-default values for variables like 'CC', 'cache_file', and 'prefix'.
-'configure' looks for 'PREFIX/share/config.site' if it exists, then
-'PREFIX/etc/config.site' if it exists.  Or, you can set the
-'CONFIG_SITE' environment variable to the location of the site script.
-A warning: not all 'configure' scripts look for a site script.
+   If you want to set default values for ‘configure’ scripts to share,
+you can create a site shell script called ‘config.site’ that gives
+default values for variables like ‘CC’, ‘cache_file’, and ‘prefix’.
+‘configure’ looks for ‘PREFIX/share/config.site’ if it exists, then
+‘PREFIX/etc/config.site’ if it exists.  Or, you can set the
+‘CONFIG_SITE’ environment variable to the location of the site script.
+A warning: not all ‘configure’ scripts look for a site script.
 
 Defining Variables
 ==================
 
    Variables not defined in a site shell script can be set in the
-environment passed to 'configure'.  However, some packages may run
+environment passed to ‘configure’.  However, some packages may run
 configure again during the build, and the customized values of these
 variables may be lost.  In order to avoid this problem, you should set
-them in the 'configure' command line, using 'VAR=value'.  For example:
+them in the ‘configure’ command line, using ‘VAR=value’.  For example:
 
      ./configure CC=/usr/local2/bin/gcc
 
-causes the specified 'gcc' to be used as the C compiler (unless it is
+causes the specified ‘gcc’ to be used as the C compiler (unless it is
 overridden in the site shell script).
 
-Unfortunately, this technique does not work for 'CONFIG_SHELL' due to an
+Unfortunately, this technique does not work for ‘CONFIG_SHELL’ due to an
 Autoconf limitation.  Until the limitation is lifted, you can use this
 workaround:
 
      CONFIG_SHELL=/bin/bash ./configure CONFIG_SHELL=/bin/bash
 
-'configure' Invocation
+‘configure’ Invocation
 ======================
 
-   'configure' recognizes the following options to control how it
+   ‘configure’ recognizes the following options to control how it
 operates.
 
-'--help'
-'-h'
-     Print a summary of all of the options to 'configure', and exit.
+‘--help’
+‘-h’
+     Print a summary of all of the options to ‘configure’, and exit.
 
-'--help=short'
-'--help=recursive'
-     Print a summary of the options unique to this package's
-     'configure', and exit.  The 'short' variant lists options used only
-     in the top level, while the 'recursive' variant lists options also
+‘--help=short’
+‘--help=recursive’
+     Print a summary of the options unique to this package’s
+     ‘configure’, and exit.  The ‘short’ variant lists options used only
+     in the top level, while the ‘recursive’ variant lists options also
      present in any nested packages.
 
-'--version'
-'-V'
-     Print the version of Autoconf used to generate the 'configure'
+‘--version’
+‘-V’
+     Print the version of Autoconf used to generate the ‘configure’
      script, and exit.
 
-'--cache-file=FILE'
+‘--cache-file=FILE’
      Enable the cache: use and save the results of the tests in FILE,
-     traditionally 'config.cache'.  FILE defaults to '/dev/null' to
+     traditionally ‘config.cache’.  FILE defaults to ‘/dev/null’ to
      disable caching.
 
-'--config-cache'
-'-C'
-     Alias for '--cache-file=config.cache'.
+‘--config-cache’
+‘-C’
+     Alias for ‘--cache-file=config.cache’.
 
-'--quiet'
-'--silent'
-'-q'
-     Do not print messages saying which checks are being made.  To
-     suppress all normal output, redirect it to '/dev/null' (any error
-     messages will still be shown).
+‘--srcdir=DIR’
+     Look for the package’s source code in directory DIR.  Usually
+     ‘configure’ can determine that directory automatically.
 
-'--srcdir=DIR'
-     Look for the package's source code in directory DIR.  Usually
-     'configure' can determine that directory automatically.
-
-'--prefix=DIR'
-     Use DIR as the installation prefix.  *note Installation Names:: for
+‘--prefix=DIR’
+     Use DIR as the installation prefix.  See “Installation Names” for
      more details, including other options available for fine-tuning the
      installation locations.
 
-'--no-create'
-'-n'
+‘--host=TYPE’
+     Build binaries for system TYPE.  See “Specifying a System Type”.
+
+‘--enable-FEATURE’
+‘--disable-FEATURE’
+     Enable or disable the optional FEATURE.  See “Optional Features”.
+
+‘--with-PACKAGE’
+‘--without-PACKAGE’
+     Use or omit PACKAGE when building.  See “Optional Features”.
+
+‘--quiet’
+‘--silent’
+‘-q’
+     Do not print messages saying which checks are being made.  To
+     suppress all normal output, redirect it to ‘/dev/null’ (any error
+     messages will still be shown).
+
+‘--no-create’
+‘-n’
      Run the configure checks, but stop before creating any output
      files.
 
-'configure' also accepts some other, not widely useful, options.  Run
-'configure --help' for more details.
+‘configure’ also recognizes several environment variables, and accepts
+some other, less widely useful, options.  Run ‘configure --help’ for
+more details.
+
+Copyright notice
+================
+
+   Copyright © 1994–1996, 1999–2002, 2004–2017, 2020–2024 Free Software
+Foundation, Inc.
+
+   Copying and distribution of this file, with or without modification,
+are permitted in any medium without royalty provided the copyright
+notice and this notice are preserved.  This file is offered as-is,
+without warranty of any kind.

INSTALL.Linux

@@ -7,4 +7,15 @@ On most systems (including GNU/Linux), installing can be easily achieved using t
 -or- (if not compiling as root)
 ./configure --prefix=$HOME && make && make install
 
+Building from a git checkout (not a release tarball) first needs the build
+system regenerated, which requires autoconf, automake and libtool:
+
+./bootstrap
+./configure && make && make install
+
+You can also use the one-shot wrapper, which runs bootstrap, configure and make
+(extra arguments are passed to configure):
+
+./build.sh --prefix=$HOME
+
 See also the INSTALL generic help file.

Makefile.am

@@ -1,11 +1,12 @@
 
-SUBDIRS = src man m4 libtest templates lang html tests
+SUBDIRS = src man m4 libtest templates lang html tests fuzz
 
 ACLOCAL_AMFLAGS = -I m4
 
 EXTRA_DIST = INSTALL.Linux \
 		gpl-fr.txt license.txt greetings.txt history.txt \
-		httrack-doc.html lang.def README.md tools/mkdeb.sh
+		httrack-doc.html lang.def README.md tools/mkdeb.sh \
+		bootstrap build.sh
 
 # Build the signed Debian packages from a clean source export. Pass the signing
 # key and other options through DEB_FLAGS, e.g.:

Makefile.in

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README

@@ -4,11 +4,9 @@ Copyright (C) 1998-2017 Xavier Roche and other contributors
 Welcome to HTTrack Website Copier!
 
 
-Ethical use:
-
-We ask that you do not use HTTrack to grab email addresses or to collect any
-other private information on people. This would disgrace our work and the many
-hours we have spent on it.
+Ethical use: we kindly ask that you NOT use this software to harvest email
+addresses or to collect any other private information about people. Doing so
+would dishonor our work and waste the many hours we have spent on it.
 
 
 Information:

README.md

@@ -22,8 +22,22 @@ HTTrack can also update an existing mirrored site, and resume interrupted downlo
 http://www.httrack.com/
 
 ## Compile trunk release
+
+A git checkout ships only the autotools sources, so `./bootstrap` (which runs
+`autoreconf`) regenerates `configure` first; this needs autoconf, automake and
+libtool. Released tarballs already include `configure`, so building from a
+tarball skips `./bootstrap`.
+
 ```sh
 git clone https://github.com/xroche/httrack.git --recurse-submodules
 cd httrack
+./bootstrap
 ./configure --prefix=$HOME/usr && make -j8 && make install
 ```
+
+Or use the one-shot wrapper (bootstrap + configure + make), which forwards its
+arguments to `configure`:
+
+```sh
+./build.sh --prefix=$HOME/usr
+```

bootstrap

@@ -0,0 +1,24 @@
+#!/bin/sh
+#
+# Regenerate the autotools build system (configure, Makefile.in, config.h.in,
+# libtool, the aux scripts) from configure.ac and the Makefile.am files.
+#
+# Run this once after a fresh git clone, before ./configure. Release tarballs
+# (made with "make dist") already ship these files, so people building from a
+# tarball do not need autotools and do not run this.
+#
+# Requires: autoconf, automake, libtool (the autoreconf toolchain).
+
+set -e
+
+# shellcheck disable=SC1007  # "CDPATH= cd" is a deliberate empty-CDPATH prefix.
+srcdir=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+cd "$srcdir"
+
+if ! command -v autoreconf >/dev/null 2>&1; then
+    echo "bootstrap: autoreconf not found; install autoconf, automake and libtool" >&2
+    echo "           (or build from a release tarball, which ships ./configure)" >&2
+    exit 1
+fi
+
+exec autoreconf -fi "$@"

build.sh

@@ -0,0 +1,34 @@
+#!/bin/sh
+#
+# One-shot build from a git checkout: bootstrap (autoreconf) -> configure -> make.
+# A convenience wrapper; the canonical steps are ./bootstrap && ./configure && make.
+#
+# Extra arguments are passed straight to ./configure, e.g.
+#   ./build.sh --prefix="$HOME" --disable-https
+#
+# Build out of tree (recommended; required if the source tree is read-only or
+# mounted noexec) by pointing BUILD_DIR at a scratch directory:
+#   BUILD_DIR=/var/tmp/httrack-build ./build.sh
+#
+# On a noexec filesystem the executable bit does not take effect, so invoke the
+# script explicitly with sh:  sh build.sh
+#
+# Requires autoconf/automake/libtool (for bootstrap); the release tarball ships
+# ./configure, so from a tarball just run ./configure && make.
+
+set -e
+
+# shellcheck disable=SC1007  # "CDPATH= cd" is a deliberate empty-CDPATH prefix.
+srcdir=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+
+# 1. Regenerate the build system in the source tree (autotools requires it).
+sh "$srcdir/bootstrap"
+
+# 2. Configure and build, out of tree when BUILD_DIR is set.
+builddir=${BUILD_DIR:-$srcdir}
+mkdir -p "$builddir"
+cd "$builddir"
+# Invoke configure via the shell, not execve: it is a portable sh script, and a
+# noexec source tree (or a cleared executable bit) would make ./configure fail.
+"${CONFIG_SHELL:-/bin/sh}" "$srcdir/configure" "$@"
+make

compile

@@ -1,348 +0,0 @@
-#! /bin/sh
-# Wrapper for compilers which do not understand '-c -o'.
-
-scriptversion=2018-03-07.03; # UTC
-
-# Copyright (C) 1999-2021 Free Software Foundation, Inc.
-# Written by Tom Tromey <tromey@cygnus.com>.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# This file is maintained in Automake, please report
-# bugs to <bug-automake@gnu.org> or send patches to
-# <automake-patches@gnu.org>.
-
-nl='
-'
-
-# We need space, tab and new line, in precisely that order.  Quoting is
-# there to prevent tools from complaining about whitespace usage.
-IFS=" ""	$nl"
-
-file_conv=
-
-# func_file_conv build_file lazy
-# Convert a $build file to $host form and store it in $file
-# Currently only supports Windows hosts. If the determined conversion
-# type is listed in (the comma separated) LAZY, no conversion will
-# take place.
-func_file_conv ()
-{
-  file=$1
-  case $file in
-    / | /[!/]*) # absolute file, and not a UNC file
-      if test -z "$file_conv"; then
-	# lazily determine how to convert abs files
-	case `uname -s` in
-	  MINGW*)
-	    file_conv=mingw
-	    ;;
-	  CYGWIN* | MSYS*)
-	    file_conv=cygwin
-	    ;;
-	  *)
-	    file_conv=wine
-	    ;;
-	esac
-      fi
-      case $file_conv/,$2, in
-	*,$file_conv,*)
-	  ;;
-	mingw/*)
-	  file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
-	  ;;
-	cygwin/* | msys/*)
-	  file=`cygpath -m "$file" || echo "$file"`
-	  ;;
-	wine/*)
-	  file=`winepath -w "$file" || echo "$file"`
-	  ;;
-      esac
-      ;;
-  esac
-}
-
-# func_cl_dashL linkdir
-# Make cl look for libraries in LINKDIR
-func_cl_dashL ()
-{
-  func_file_conv "$1"
-  if test -z "$lib_path"; then
-    lib_path=$file
-  else
-    lib_path="$lib_path;$file"
-  fi
-  linker_opts="$linker_opts -LIBPATH:$file"
-}
-
-# func_cl_dashl library
-# Do a library search-path lookup for cl
-func_cl_dashl ()
-{
-  lib=$1
-  found=no
-  save_IFS=$IFS
-  IFS=';'
-  for dir in $lib_path $LIB
-  do
-    IFS=$save_IFS
-    if $shared && test -f "$dir/$lib.dll.lib"; then
-      found=yes
-      lib=$dir/$lib.dll.lib
-      break
-    fi
-    if test -f "$dir/$lib.lib"; then
-      found=yes
-      lib=$dir/$lib.lib
-      break
-    fi
-    if test -f "$dir/lib$lib.a"; then
-      found=yes
-      lib=$dir/lib$lib.a
-      break
-    fi
-  done
-  IFS=$save_IFS
-
-  if test "$found" != yes; then
-    lib=$lib.lib
-  fi
-}
-
-# func_cl_wrapper cl arg...
-# Adjust compile command to suit cl
-func_cl_wrapper ()
-{
-  # Assume a capable shell
-  lib_path=
-  shared=:
-  linker_opts=
-  for arg
-  do
-    if test -n "$eat"; then
-      eat=
-    else
-      case $1 in
-	-o)
-	  # configure might choose to run compile as 'compile cc -o foo foo.c'.
-	  eat=1
-	  case $2 in
-	    *.o | *.[oO][bB][jJ])
-	      func_file_conv "$2"
-	      set x "$@" -Fo"$file"
-	      shift
-	      ;;
-	    *)
-	      func_file_conv "$2"
-	      set x "$@" -Fe"$file"
-	      shift
-	      ;;
-	  esac
-	  ;;
-	-I)
-	  eat=1
-	  func_file_conv "$2" mingw
-	  set x "$@" -I"$file"
-	  shift
-	  ;;
-	-I*)
-	  func_file_conv "${1#-I}" mingw
-	  set x "$@" -I"$file"
-	  shift
-	  ;;
-	-l)
-	  eat=1
-	  func_cl_dashl "$2"
-	  set x "$@" "$lib"
-	  shift
-	  ;;
-	-l*)
-	  func_cl_dashl "${1#-l}"
-	  set x "$@" "$lib"
-	  shift
-	  ;;
-	-L)
-	  eat=1
-	  func_cl_dashL "$2"
-	  ;;
-	-L*)
-	  func_cl_dashL "${1#-L}"
-	  ;;
-	-static)
-	  shared=false
-	  ;;
-	-Wl,*)
-	  arg=${1#-Wl,}
-	  save_ifs="$IFS"; IFS=','
-	  for flag in $arg; do
-	    IFS="$save_ifs"
-	    linker_opts="$linker_opts $flag"
-	  done
-	  IFS="$save_ifs"
-	  ;;
-	-Xlinker)
-	  eat=1
-	  linker_opts="$linker_opts $2"
-	  ;;
-	-*)
-	  set x "$@" "$1"
-	  shift
-	  ;;
-	*.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
-	  func_file_conv "$1"
-	  set x "$@" -Tp"$file"
-	  shift
-	  ;;
-	*.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
-	  func_file_conv "$1" mingw
-	  set x "$@" "$file"
-	  shift
-	  ;;
-	*)
-	  set x "$@" "$1"
-	  shift
-	  ;;
-      esac
-    fi
-    shift
-  done
-  if test -n "$linker_opts"; then
-    linker_opts="-link$linker_opts"
-  fi
-  exec "$@" $linker_opts
-  exit 1
-}
-
-eat=
-
-case $1 in
-  '')
-     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
-     exit 1;
-     ;;
-  -h | --h*)
-    cat <<\EOF
-Usage: compile [--help] [--version] PROGRAM [ARGS]
-
-Wrapper for compilers which do not understand '-c -o'.
-Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
-arguments, and rename the output as expected.
-
-If you are trying to build a whole package this is not the
-right script to run: please start by reading the file 'INSTALL'.
-
-Report bugs to <bug-automake@gnu.org>.
-EOF
-    exit $?
-    ;;
-  -v | --v*)
-    echo "compile $scriptversion"
-    exit $?
-    ;;
-  cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \
-  icl | *[/\\]icl | icl.exe | *[/\\]icl.exe )
-    func_cl_wrapper "$@"      # Doesn't return...
-    ;;
-esac
-
-ofile=
-cfile=
-
-for arg
-do
-  if test -n "$eat"; then
-    eat=
-  else
-    case $1 in
-      -o)
-	# configure might choose to run compile as 'compile cc -o foo foo.c'.
-	# So we strip '-o arg' only if arg is an object.
-	eat=1
-	case $2 in
-	  *.o | *.obj)
-	    ofile=$2
-	    ;;
-	  *)
-	    set x "$@" -o "$2"
-	    shift
-	    ;;
-	esac
-	;;
-      *.c)
-	cfile=$1
-	set x "$@" "$1"
-	shift
-	;;
-      *)
-	set x "$@" "$1"
-	shift
-	;;
-    esac
-  fi
-  shift
-done
-
-if test -z "$ofile" || test -z "$cfile"; then
-  # If no '-o' option was seen then we might have been invoked from a
-  # pattern rule where we don't need one.  That is ok -- this is a
-  # normal compilation that the losing compiler can handle.  If no
-  # '.c' file was seen then we are probably linking.  That is also
-  # ok.
-  exec "$@"
-fi
-
-# Name of file we expect compiler to create.
-cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
-
-# Create the lock directory.
-# Note: use '[/\\:.-]' here to ensure that we don't use the same name
-# that we are using for the .o file.  Also, base the name on the expected
-# object file name, since that is what matters with a parallel build.
-lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
-while true; do
-  if mkdir "$lockdir" >/dev/null 2>&1; then
-    break
-  fi
-  sleep 1
-done
-# FIXME: race condition here if user kills between mkdir and trap.
-trap "rmdir '$lockdir'; exit 1" 1 2 15
-
-# Run the compile.
-"$@"
-ret=$?
-
-if test -f "$cofile"; then
-  test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
-elif test -f "${cofile}bj"; then
-  test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
-fi
-
-rmdir "$lockdir"
-exit $ret
-
-# Local Variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'before-save-hook 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC0"
-# time-stamp-end: "; # UTC"
-# End:

config.h.in

@@ -1,218 +0,0 @@
-/* config.h.in.  Generated from configure.ac by autoheader.  */
-
-/* Check for dlopen in c */
-#undef DLLIB
-
-/* Define if pointers to integers require aligned access */
-#undef HAVE_ALIGNED_ACCESS_REQUIRED
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#undef HAVE_DLFCN_H
-
-/* Define to 1 if you have the <execinfo.h> header file. */
-#undef HAVE_EXECINFO_H
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#undef HAVE_INTTYPES_H
-
-/* Define to 1 if you have the `z' library (-lz). */
-#undef HAVE_LIBZ
-
-/* Define to 1 if you have the <minix/config.h> header file. */
-#undef HAVE_MINIX_CONFIG_H
-
-/* Define to 1 if you have the `snprintf' function. */
-#undef HAVE_SNPRINTF
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#undef HAVE_STDINT_H
-
-/* Define to 1 if you have the <stdio.h> header file. */
-#undef HAVE_STDIO_H
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#undef HAVE_STDLIB_H
-
-/* Define to 1 if you have the <strings.h> header file. */
-#undef HAVE_STRINGS_H
-
-/* Define to 1 if you have the <string.h> header file. */
-#undef HAVE_STRING_H
-
-/* Check for strnlen */
-#undef HAVE_STRNLEN
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#undef HAVE_SYS_STAT_H
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#undef HAVE_SYS_TYPES_H
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#undef HAVE_UNISTD_H
-
-/* Define to 1 or 0, depending whether the compiler supports simple visibility
-   declarations. */
-#undef HAVE_VISIBILITY
-
-/* Define to 1 if you have the `vsnprintf' function. */
-#undef HAVE_VSNPRINTF
-
-/* Define to 1 if you have the <wchar.h> header file. */
-#undef HAVE_WCHAR_H
-
-/* Check for in_addr_t */
-#undef HTS_DO_NOT_REDEFINE_in_addr_t
-
-/* Check for IPv6 */
-#undef HTS_INET6
-
-/* Check for large files support */
-#undef HTS_LFS
-
-/* Check for OpenSSL */
-#undef HTS_USEOPENSSL
-
-/* Check for libiconv */
-#undef LIBICONV
-
-/* Check for libsocket */
-#undef LIBSOCKET
-
-/* Define to the sub-directory where libtool stores uninstalled libraries. */
-#undef LT_OBJDIR
-
-/* Name of package */
-#undef PACKAGE
-
-/* Define to the address where bug reports for this package should be sent. */
-#undef PACKAGE_BUGREPORT
-
-/* Define to the full name of this package. */
-#undef PACKAGE_NAME
-
-/* Define to the full name and version of this package. */
-#undef PACKAGE_STRING
-
-/* Define to the one symbol short name of this package. */
-#undef PACKAGE_TARNAME
-
-/* Define to the home page for this package. */
-#undef PACKAGE_URL
-
-/* Define to the version of this package. */
-#undef PACKAGE_VERSION
-
-/* "enable replacement (v)snprintf if system (v)snprintf is broken" */
-#undef PREFER_PORTABLE_SNPRINTF
-
-/* Check for setuid */
-#undef SETUID
-
-/* The size of `long long', as computed by sizeof. */
-#undef SIZEOF_LONG_LONG
-
-/* Define to 1 if all of the C90 standard headers exist (not just the ones
-   required in a freestanding environment). This macro is provided for
-   backward compatibility; new code need not use it. */
-#undef STDC_HEADERS
-
-/* Check for pthread in pthreads */
-#undef THREADS
-
-/* Enable extensions on AIX 3, Interix.  */
-#ifndef _ALL_SOURCE
-# undef _ALL_SOURCE
-#endif
-/* Enable general extensions on macOS.  */
-#ifndef _DARWIN_C_SOURCE
-# undef _DARWIN_C_SOURCE
-#endif
-/* Enable general extensions on Solaris.  */
-#ifndef __EXTENSIONS__
-# undef __EXTENSIONS__
-#endif
-/* Enable GNU extensions on systems that have them.  */
-#ifndef _GNU_SOURCE
-# undef _GNU_SOURCE
-#endif
-/* Enable X/Open compliant socket functions that do not require linking
-   with -lxnet on HP-UX 11.11.  */
-#ifndef _HPUX_ALT_XOPEN_SOCKET_API
-# undef _HPUX_ALT_XOPEN_SOCKET_API
-#endif
-/* Identify the host operating system as Minix.
-   This macro does not affect the system headers' behavior.
-   A future release of Autoconf may stop defining this macro.  */
-#ifndef _MINIX
-# undef _MINIX
-#endif
-/* Enable general extensions on NetBSD.
-   Enable NetBSD compatibility extensions on Minix.  */
-#ifndef _NETBSD_SOURCE
-# undef _NETBSD_SOURCE
-#endif
-/* Enable OpenBSD compatibility extensions on NetBSD.
-   Oddly enough, this does nothing on OpenBSD.  */
-#ifndef _OPENBSD_SOURCE
-# undef _OPENBSD_SOURCE
-#endif
-/* Define to 1 if needed for POSIX-compatible behavior.  */
-#ifndef _POSIX_SOURCE
-# undef _POSIX_SOURCE
-#endif
-/* Define to 2 if needed for POSIX-compatible behavior.  */
-#ifndef _POSIX_1_SOURCE
-# undef _POSIX_1_SOURCE
-#endif
-/* Enable POSIX-compatible threading on Solaris.  */
-#ifndef _POSIX_PTHREAD_SEMANTICS
-# undef _POSIX_PTHREAD_SEMANTICS
-#endif
-/* Enable extensions specified by ISO/IEC TS 18661-5:2014.  */
-#ifndef __STDC_WANT_IEC_60559_ATTRIBS_EXT__
-# undef __STDC_WANT_IEC_60559_ATTRIBS_EXT__
-#endif
-/* Enable extensions specified by ISO/IEC TS 18661-1:2014.  */
-#ifndef __STDC_WANT_IEC_60559_BFP_EXT__
-# undef __STDC_WANT_IEC_60559_BFP_EXT__
-#endif
-/* Enable extensions specified by ISO/IEC TS 18661-2:2015.  */
-#ifndef __STDC_WANT_IEC_60559_DFP_EXT__
-# undef __STDC_WANT_IEC_60559_DFP_EXT__
-#endif
-/* Enable extensions specified by ISO/IEC TS 18661-4:2015.  */
-#ifndef __STDC_WANT_IEC_60559_FUNCS_EXT__
-# undef __STDC_WANT_IEC_60559_FUNCS_EXT__
-#endif
-/* Enable extensions specified by ISO/IEC TS 18661-3:2015.  */
-#ifndef __STDC_WANT_IEC_60559_TYPES_EXT__
-# undef __STDC_WANT_IEC_60559_TYPES_EXT__
-#endif
-/* Enable extensions specified by ISO/IEC TR 24731-2:2010.  */
-#ifndef __STDC_WANT_LIB_EXT2__
-# undef __STDC_WANT_LIB_EXT2__
-#endif
-/* Enable extensions specified by ISO/IEC 24747:2009.  */
-#ifndef __STDC_WANT_MATH_SPEC_FUNCS__
-# undef __STDC_WANT_MATH_SPEC_FUNCS__
-#endif
-/* Enable extensions on HP NonStop.  */
-#ifndef _TANDEM_SOURCE
-# undef _TANDEM_SOURCE
-#endif
-/* Enable X/Open extensions.  Define to 500 only if necessary
-   to make mbstate_t available.  */
-#ifndef _XOPEN_SOURCE
-# undef _XOPEN_SOURCE
-#endif
-
-
-/* Version number of package */
-#undef VERSION
-
-/* in_port_t */
-#undef in_port_t
-
-/* sa_family_t */
-#undef sa_family_t

configure.ac

@@ -1,6 +1,6 @@
 AC_PREREQ([2.71])
 
-AC_INIT([httrack], [3.49.8], [roche+packaging@httrack.com], [httrack], [http://www.httrack.com/])
+AC_INIT([httrack], [3.49.11], [roche+packaging@httrack.com], [httrack], [http://www.httrack.com/])
 AC_COPYRIGHT([
 HTTrack Website Copier, Offline Browser for Windows and Unix
 Copyright (C) 1998-2015 Xavier Roche and other contributors
@@ -18,11 +18,9 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program. If not, see <http://www.gnu.org/licenses/>.
 
-Important notes:
-
-- We hereby ask people using this source NOT to use it in purpose of grabbing
-emails addresses, or collecting any other private information on persons.
-This would disgrace our work, and spoil the many hours we spent on it.
+Ethical use: we kindly ask that you NOT use this software to harvest email
+addresses or to collect any other private information about people. Doing so
+would dishonor our work and waste the many hours we have spent on it.
 
 Please visit our Website: http://www.httrack.com
 ])
@@ -31,7 +29,11 @@ AC_CONFIG_SRCDIR(src/httrack.c)
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_HEADERS(config.h)
 AM_INIT_AUTOMAKE([subdir-objects])
-VERSION_INFO="2:49:0"
+# 3:3:0: 3.49.11 only adds enum values, macros and inline helpers to the
+# installed headers (no struct layout or exported signature changed vs
+# 3.49.10), so it stays soname .so.3; bump revision.
+# (3:0:0 was the htsblk mime-buffer widening, the ABI break that moved .so.2 -> .so.3.)
+VERSION_INFO="3:3:0"
 AM_MAINTAINER_MODE
 AC_USE_SYSTEM_EXTENSIONS
 
@@ -50,6 +52,9 @@ LT_INIT
 AC_PROG_LN_S
 LT_INIT
 
+# bash, used to run the test scripts (see tests/Makefile.am TEST_LOG_COMPILER)
+AC_PATH_PROGS([BASH], [bash], [/bin/bash])
+
 # Export LD_LIBRARY_PATH name or equivalent.
 AC_SUBST(SHLIBPATH_VAR,$shlibpath_var)
 
@@ -59,6 +64,16 @@ AC_SUBST(LT_CV_OBJDIR,$lt_cv_objdir)
 # Export version info
 AC_SUBST(VERSION_INFO)
 
+# Versioned plugin name for dlopen() in hts_create_opt(); soname major is
+# libtool's current - age, so this tracks VERSION_INFO bumps automatically.
+HTS_SONAME_MAJOR=$((${VERSION_INFO%%:*} - ${VERSION_INFO##*:}))
+case "$host_os" in
+darwin*) HTS_LIBHTSJAVA_NAME="libhtsjava.$HTS_SONAME_MAJOR.dylib" ;;
+*) HTS_LIBHTSJAVA_NAME="libhtsjava.so.$HTS_SONAME_MAJOR" ;;
+esac
+AC_DEFINE_UNQUOTED([HTS_LIBHTSJAVA_NAME], ["$HTS_LIBHTSJAVA_NAME"],
+  [Versioned libhtsjava runtime name, derived from VERSION_INFO])
+
 ### Default CFLAGS
 DEFAULT_CFLAGS="-Wall -Wformat -Wformat-security \
 -Wmultichar -Wwrite-strings -Wcast-qual -Wcast-align \
@@ -81,8 +96,14 @@ AX_CHECK_COMPILE_FLAG([-Wformat-nonliteral], [DEFAULT_CFLAGS="$DEFAULT_CFLAGS -W
 AX_CHECK_COMPILE_FLAG([-Wmissing-parameter-type], [DEFAULT_CFLAGS="$DEFAULT_CFLAGS -Wmissing-parameter-type"])
 AX_CHECK_COMPILE_FLAG([-Wold-style-definition], [DEFAULT_CFLAGS="$DEFAULT_CFLAGS -Wold-style-definition"])
 AX_CHECK_COMPILE_FLAG([-Wignored-qualifiers], [DEFAULT_CFLAGS="$DEFAULT_CFLAGS -Wignored-qualifiers"])
+# Make htssafe.h's pointer-dest 'warning' attribute a hard error in our build
+# (migration is at zero; a new char* dest is a regression). gcc/clang each take
+# only their own spelling; downstream keeps the plain warning, not a build break.
+AX_CHECK_COMPILE_FLAG([-Werror=attribute-warning], [DEFAULT_CFLAGS="$DEFAULT_CFLAGS -Werror=attribute-warning"])
+AX_CHECK_COMPILE_FLAG([-Werror=user-defined-warnings], [DEFAULT_CFLAGS="$DEFAULT_CFLAGS -Werror=user-defined-warnings"])
 AX_CHECK_COMPILE_FLAG([-fstrict-aliasing -Wstrict-aliasing], [DEFAULT_CFLAGS="$DEFAULT_CFLAGS -fstrict-aliasing -Wstrict-aliasing"])
-AX_CHECK_COMPILE_FLAG([-fstack-protector], [DEFAULT_CFLAGS="$DEFAULT_CFLAGS -fstack-protector"])
+AX_CHECK_COMPILE_FLAG([-fstack-protector-strong], [DEFAULT_CFLAGS="$DEFAULT_CFLAGS -fstack-protector-strong"],
+	[AX_CHECK_COMPILE_FLAG([-fstack-protector], [DEFAULT_CFLAGS="$DEFAULT_CFLAGS -fstack-protector"])])
 AX_CHECK_COMPILE_FLAG([-fstack-clash-protection], [DEFAULT_CFLAGS="$DEFAULT_CFLAGS -fstack-clash-protection"])
 AX_CHECK_COMPILE_FLAG([-fcf-protection], [DEFAULT_CFLAGS="$DEFAULT_CFLAGS -fcf-protection"])
 AX_CHECK_LINK_FLAG([-Wl,--discard-all], [DEFAULT_LDFLAGS="$DEFAULT_LDFLAGS -Wl,--discard-all"])
@@ -90,6 +111,20 @@ AX_CHECK_LINK_FLAG([-Wl,--no-undefined], [DEFAULT_LDFLAGS="$DEFAULT_LDFLAGS -Wl,
 AX_CHECK_LINK_FLAG([-Wl,-z,relro,-z,now], [DEFAULT_LDFLAGS="$DEFAULT_LDFLAGS -Wl,-z,relro,-z,now"])
 AX_CHECK_LINK_FLAG([-Wl,-z,noexecstack], [DEFAULT_LDFLAGS="$DEFAULT_LDFLAGS -Wl,-z,noexecstack"])
 
+# Fortify libc calls (=3, else =2) unless the toolchain predefines it; skip
+# sanitizer builds, whose interceptors want the unfortified calls.
+case "$CFLAGS" in
+*-fsanitize=*) ;;
+*) AX_ADD_FORTIFY_SOURCE ;;
+esac
+
+# Force libc back into DT_NEEDED for libraries that reach it only through
+# libhttrack (libhtsjava, the libtest callbacks), but only with a GNU-style
+# linker; Apple ld rejects these flags and links libSystem unconditionally.
+AX_CHECK_LINK_FLAG([-Wl,--push-state,--no-as-needed,-lc,--pop-state],
+	[LIBC_FORCE_LINK="-Wl,--push-state,--no-as-needed,-lc,--pop-state"])
+AC_SUBST([LIBC_FORCE_LINK])
+
 ### PIE
 CFLAGS_PIE=""
 LDFLAGS_PIE=""
@@ -199,9 +234,12 @@ AC_SUBST(OPENSSL_LIBS)
 fi
 
 ### Support IPv6
+V6_SUPPORT=no
 AC_CHECK_LIB(c, getaddrinfo, [V6_FLAG="-DINET6"
+V6_SUPPORT=yes
 AC_DEFINE(HTS_INET6, 1, [Check for IPv6])], AC_MSG_WARN([*** IPv6 not found IPv6 compatibility disabled]))
 AC_SUBST(V6_FLAG)
+AC_SUBST(V6_SUPPORT)
 
 ### Check for LFS
 AC_CHECK_LIB(c, fopen64, [LFS_FLAG="-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE"
@@ -280,6 +318,37 @@ AC_ARG_ENABLE([online-unit-tests],
 	])
 AC_SUBST(ONLINE_UNIT_TESTS,$online_unit_tests)
 
+## libFuzzer harnesses (fuzz/); requires clang
+AC_MSG_CHECKING(whether to build fuzzers)
+AC_ARG_ENABLE([fuzzers],
+	[AS_HELP_STRING([--enable-fuzzers],[Build libFuzzer harnesses in fuzz/ (requires clang) @<:@default=no@:>@])],
+	[
+	case "${enableval}" in
+	no|yes)
+		fuzzers=$enableval
+		AC_MSG_RESULT($enableval)
+		;;
+	*)
+		AC_MSG_ERROR(bad value for fuzzers, expected yes/no)
+		;;
+	esac
+	],
+	[
+	fuzzers=no
+	AC_MSG_RESULT(no)
+	])
+if test x"$fuzzers" = x"yes"; then
+	# Instrument the whole build for coverage; harnesses link -fsanitize=fuzzer.
+	AX_CHECK_COMPILE_FLAG([-fsanitize=fuzzer-no-link],
+		[DEFAULT_CFLAGS="$DEFAULT_CFLAGS -fsanitize=fuzzer-no-link"],
+		[AC_MSG_ERROR([--enable-fuzzers requires libFuzzer support (clang)])])
+	# clang's static sanitizer runtimes clash with -Wl,--no-undefined on the .so.
+	if test x"$enable_shared" != x"no"; then
+		AC_MSG_ERROR([--enable-fuzzers requires --disable-shared])
+	fi
+fi
+AM_CONDITIONAL([FUZZERS], [test x"$fuzzers" = x"yes"])
+
 # Final output
 AC_CONFIG_FILES([
 Makefile
@@ -291,5 +360,6 @@ lang/Makefile
 html/Makefile
 libtest/Makefile
 tests/Makefile
+fuzz/Makefile
 ])
 AC_OUTPUT

debian/changelog

@@ -1,6 +1,67 @@
+httrack (3.49.11-1) unstable; urgency=medium
+
+  * New upstream release: crawl correctness and security fixes (network-facing
+    buffer overflows, file-type detection, redirect handling) and modernized
+    web defaults; full list in history.txt.
+  * Add DEP-12 upstream metadata (#466).
+  * Bump debhelper compat to 14 (#466).
+  * Drop the redundant Priority field and update the NMU lintian override to
+    the current tag names (#466).
+
+ -- Xavier Roche <xavier@debian.org>  Sun, 05 Jul 2026 00:03:18 +0200
+
+httrack (3.49.10-2) unstable; urgency=medium
+
+  * Fix FTBFS: tests/28_local-pause failed instead of skipping when python3 is
+    absent (the local-server tests need python3, which the buildds lack). Add
+    patches/skip-local-pause-test-without-python3.patch to guard the test on
+    python3 up front, like its siblings, so it skips cleanly.
+
+ -- Xavier Roche <xavier@debian.org>  Sun, 28 Jun 2026 20:18:46 +0200
+
+httrack (3.49.10-1) unstable; urgency=medium
+
+  * New upstream release: new download-pacing and URL-handling options plus a
+    batch of crawl and robustness fixes (full list in history.txt).
+  * Rewrite debian/copyright in machine-readable DEP-5 format, crediting the
+    bundled minizip, md5 and coucal sources (#415).
+  * Lead the webhttrack browser dependency with chromium so httrack is not
+    dragged into the firefox-esr autoremoval cascade (#436).
+  * Override the embedded-library lint for the bundled minizip (#419).
+  * Bump Standards-Version to 4.7.4 (no changes required).
+
+ -- Xavier Roche <xavier@debian.org>  Sun, 28 Jun 2026 14:01:53 +0200
+
+httrack (3.49.9-1) unstable; urgency=medium
+
+  * New upstream release: Content-Type and file-type detection fixes (trust a
+    declared Content-Type over a binary URL extension, honor --assume under the
+    delayed type check, keep a known extension against a bogus or empty
+    Content-Type, and avoid an uninitialised read on an empty Content-Type), and
+    restored C++ source-compatibility of the installed headers so reverse
+    dependencies (httraqt) build again.
+
+ -- Xavier Roche <xavier@debian.org>  Sun, 21 Jun 2026 17:59:38 +0200
+
+httrack (3.49.8-2) unstable; urgency=medium
+
+  * Rename libhttrack2 to libhttrack3 to follow the SONAME, which the 3.49.8
+    ABI bump moved to libhttrack.so.3 (package-name-doesnt-match-sonames). In
+    3.49.8-1 the libhttrack2.files glob still matched .so.2, so the runtime
+    libraries fell through into the httrack package and libhttrack2 shipped no
+    library. The new .files uses a .so.3* wildcard so a future SONAME bump no
+    longer silently misplaces the libraries. New binary package, via NEW.
+  * Drop the stale debian/libhttrack-swf1.files: the swf module is no longer
+    built and no libhttrack-swf1 package exists.
+
+ -- Xavier Roche <xavier@debian.org>  Sat, 20 Jun 2026 14:42:13 +0200
+
 httrack (3.49.8-1) unstable; urgency=medium
 
-  * New upstream release.
+  * New upstream release: HTTPS-proxy CONNECT tunnelling and wider srcset
+    parsing, a batch of crawler and parser fixes (CSS @import, xmlns
+    namespaces, relative paths, RFC 6265 cookies), and security hardening of
+    the parser and of buffer copies throughout the engine.
   * Drop the OpenSSL linking exception from the license: OpenSSL 3.0+ is
     Apache-2.0 and GPL-compatible, so it is no longer needed. httrack is now
     plain GPL-3.0-or-later. Updated debian/copyright accordingly.
@@ -8,8 +69,13 @@ httrack (3.49.8-1) unstable; urgency=medium
     common-licenses/GPL-3, use a secure version=4 watch file, add
     Rules-Requires-Root and Vcs-Browser, and override the false-positive
     source-is-missing on the bundled HTML documentation.
+  * Refresh the webhttrack browser dependency: drop the removed alternatives
+    (iceape-browser, iceweasel, icecat, mozilla, firefox, mozilla-firefox)
+    that no longer exist in Debian and triggered half-broken relationships on
+    the QA debcheck page. Depend on firefox-esr | chromium | www-browser
+    instead.
 
- -- Xavier Roche <xavier@debian.org>  Sun, 07 Jun 2026 14:29:24 +0200
+ -- Xavier Roche <xavier@debian.org>  Sat, 20 Jun 2026 13:02:08 +0200
 
 httrack (3.49.7-2) unstable; urgency=medium
 

debian/control

@@ -1,9 +1,8 @@
 Source: httrack
 Section: web
-Priority: optional
 Maintainer: Xavier Roche <roche@httrack.com>
-Standards-Version: 4.7.0
-Build-Depends: debhelper-compat (= 13), autoconf, autoconf-archive, automake, libtool, zlib1g-dev, libssl-dev
+Standards-Version: 4.7.4
+Build-Depends: debhelper-compat (= 14), autoconf, autoconf-archive, automake, libtool, zlib1g-dev, libssl-dev
 Rules-Requires-Root: no
 Homepage: http://www.httrack.com
 Vcs-Git: https://github.com/xroche/httrack.git
@@ -30,7 +29,7 @@ Description: Copy websites to your computer (Offline browser)
 Package: webhttrack
 Architecture: any
 Multi-Arch: foreign
-Depends: ${misc:Depends}, ${shlibs:Depends}, webhttrack-common, sensible-utils, iceape-browser | iceweasel | icecat | mozilla | firefox | mozilla-firefox | www-browser
+Depends: ${misc:Depends}, ${shlibs:Depends}, webhttrack-common, sensible-utils, chromium | firefox-esr | www-browser
 Replaces: webhttrack-common (<< 3.43.9-2)
 Breaks: webhttrack-common (<< 3.43.9-2)
 Suggests: httrack, httrack-doc
@@ -58,13 +57,13 @@ Description: webhttrack common files
  This package is the common files of webhttrack, website copier and
  mirroring utility
 
-Package: libhttrack2
+Package: libhttrack3
 Architecture: any
 Multi-Arch: same
 Section: libs
-Replaces: libhttrack1
-Conflicts: libhttrack1
 Depends: ${misc:Depends}, ${shlibs:Depends}
+Replaces: libhttrack2, httrack (<< 3.49.8-2~)
+Breaks: libhttrack2, httrack (<< 3.49.8-2~)
 Description: Httrack website copier library
  This package is the library part of httrack, website copier and mirroring
  utility

debian/copyright

@@ -1,21 +1,109 @@
-This package was debianized by Xavier Roche <roche@httrack.com> on
-Fri, 27 Sep 2002 16:42:26 +0200
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Upstream-Name: httrack
+Upstream-Contact: Xavier Roche <roche@httrack.com>
+Source: https://www.httrack.com/
 
-The current Debian maintainer is Xavier Roche <xavier@debian.org>
+Files: *
+Copyright: 1998-2026 Xavier Roche and other contributors
+License: GPL-3+
+Comment:
+ The engine includes contributions from Yann Philippot (src/htsjava.c,
+ src/htsjava.h). htsbasenet.h links against the system OpenSSL library
+ (originally by Eric Young); no OpenSSL/SSLeay code is bundled here.
 
-Upstream author: Xavier Roche <roche@httrack.com>
+Files: src/minizip/*
+Copyright: 1998-2010 Gilles Vollant
+           2007-2008 Even Rouault
+           2009-2010 Mathias Svensson
+           1990-2000 Info-ZIP
+License: Zlib
+Comment:
+ The decryption code in src/minizip/crypt.h and src/minizip/unzip.c derives
+ from the Info-ZIP distribution, distributed under the same terms.
 
-Copyright: 1998-2014 Xavier Roche and other contributors
+Files: src/md5.c
+Copyright: 1993 Colin Plumb
+License: public-domain-md5
+ This code implements the MD5 message-digest algorithm, due to Ron Rivest.
+ It was written by Colin Plumb in 1993, no copyright is claimed. This code
+ is in the public domain; do with it what you wish.
 
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
+Files: src/coucal/*
+Copyright: 2013-2014 Xavier Roche
+License: BSD-3-clause
 
-On Debian systems, the complete text of the GNU General Public
-License version 3 can be found in /usr/share/common-licenses/GPL-3 file.
+Files: src/coucal/murmurhash3.h*
+Copyright: Austin Appleby
+License: public-domain-murmurhash3
+ MurmurHash3 was written by Austin Appleby, and is placed in the public
+ domain. The author hereby disclaims copyright to this source code.
 
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+Files: html/server/div/com.httrack.WebHTTrack.metainfo.xml
+Copyright: 1998-2026 Xavier Roche and other contributors
+License: FSFAP
+ Copying and distribution of this file, with or without modification, are
+ permitted in any medium without royalty provided the copyright notice and
+ this notice are preserved. This file is offered as-is, without any warranty.
+
+Files: debian/*
+Copyright: 2002-2026 Xavier Roche <xavier@debian.org>
+License: GPL-3+
+
+License: GPL-3+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+ .
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+ .
+ You should have received a copy of the GNU General Public License
+ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ .
+ On Debian systems, the complete text of the GNU General Public License
+ version 3 can be found in /usr/share/common-licenses/GPL-3.
+
+License: Zlib
+ This software is provided 'as-is', without any express or implied warranty.
+ In no event will the authors be held liable for any damages arising from the
+ use of this software.
+ .
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+ .
+ 1. The origin of this software must not be misrepresented; you must not claim
+    that you wrote the original software. If you use this software in a product,
+    an acknowledgment in the product documentation would be appreciated but is
+    not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+    misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
+
+License: BSD-3-clause
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+ .
+ 1. Redistributions of source code must retain the above copyright notice,
+    this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+    this list of conditions and the following disclaimer in the documentation
+    and/or other materials provided with the distribution.
+ 3. Neither the name of the copyright holder nor the names of its contributors
+    may be used to endorse or promote products derived from this software
+    without specific prior written permission.
+ .
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.

debian/httrack-doc.lintian-overrides

@@ -1,2 +1,9 @@
-httrack-doc: extra-license-file usr/share/httrack/html/license.txt
-httrack-doc: package-contains-documentation-outside-usr-share-doc usr/share/httrack/*
+# httrack ships its HTML manual (and the bundled license) under
+# /usr/share/httrack/html by design; /usr/share/doc/httrack/html symlinks into
+# it (see debian/rules). These are pointed hints whose match context is empty,
+# so the path lives in the display pointer, not the override -- match with '*'.
+httrack-doc: extra-license-file *
+httrack-doc: package-contains-documentation-outside-usr-share-doc *
+# search.sh is a sample CGI shipped alongside the HTML manual, not meant to be
+# run from the package tree; it stays non-executable by design.
+httrack-doc: script-not-executable *

debian/libhttrack-dev.lintian-overrides

@@ -1,4 +1,7 @@
-libhttrack-dev: breakout-link *
-libhttrack-dev: hardening-no-fortify-functions usr/lib/x86_64-linux-gnu/httrack/libtest/*
-libhttrack-dev: package-contains-documentation-outside-usr-share-doc usr/share/httrack/libtest/readme.txt
+# The libtest example shared objects are unhardened test fixtures shipped for
+# the test harness, and their readme sits beside them under /usr/share/httrack.
+# Both are pointed hints with an empty match context, so match with '*'.
+libhttrack-dev: hardening-no-fortify-functions *
+libhttrack-dev: package-contains-documentation-outside-usr-share-doc *
+# config.h is installed as a public dev header; the package-name match is expected.
 libhttrack-dev: package-name-defined-in-config-h usr/include/httrack/config.h

debian/libhttrack-swf1.files

@@ -1,2 +0,0 @@
-usr/lib/*/libhtsswf.so.1.0.0
-usr/lib/*/libhtsswf.so.1

debian/libhttrack2.files

@@ -1,5 +0,0 @@
-usr/lib/*/libhttrack.so.2.0.49
-usr/lib/*/libhttrack.so.2
-usr/lib/*/libhtsjava.so.2.0.49
-usr/lib/*/libhtsjava.so.2
-usr/share/httrack/templates

debian/libhttrack2.lintian-overrides

@@ -1,2 +0,0 @@
-libhttrack2: no-symbols-control-file usr/lib/*
-libhttrack2: spelling-error-in-binary usr/lib/*/libhttrack.so.* updat update

debian/libhttrack3.files

@@ -0,0 +1,3 @@
+usr/lib/*/libhttrack.so.3*
+usr/lib/*/libhtsjava.so.3*
+usr/share/httrack/templates

debian/libhttrack3.lintian-overrides

@@ -0,0 +1,8 @@
+# The shared libraries ship without a versioned symbols control file (ABI is
+# tracked via the SONAME plus a >= upstream-version dependency, see debian/rules).
+libhttrack3: no-symbols-control-file usr/lib/*
+
+# Bundled, locally patched minizip (src/minizip): it adds a zipFlush() API the
+# system libminizip lacks (htscache.c flushes the cache .zip so an interrupted
+# crawl leaves a valid archive), plus Android/old-zlib portability fixes.
+libhttrack3: embedded-library *libminizip*

debian/proxytrack.lintian-overrides

@@ -0,0 +1,3 @@
+# Statically linked against httrack's bundled, patched minizip (see src/minizip
+# and libhttrack3's override): the zipFlush() API is absent from the system one.
+proxytrack: embedded-library *libminizip*

debian/rules

@@ -135,7 +135,7 @@ binary-arch: build install
 	dh_makeshlibs -a -X/usr/lib/$(DEB_HOST_MULTIARCH)/httrack/libtest --version-info
 	dh_installdeb -a
 	# we depend on the current version (ABI may change)
-	dh_shlibdeps -a -ldebian/libhttrack2/usr/lib/$(DEB_HOST_MULTIARCH)
+	dh_shlibdeps -a -ldebian/libhttrack3/usr/lib/$(DEB_HOST_MULTIARCH)
 	dh_gencontrol -a
 	dh_md5sums -a
 	dh_builddeb -a

debian/source/lintian-overrides

@@ -1,4 +1,6 @@
-httrack source: changelog-should-mention-nmu
+# Maintainer uploads sign the changelog as xavier@debian.org while the control
+# Maintainer is roche@httrack.com; lintian reads the address mismatch as an NMU.
+httrack source: no-nmu-in-changelog
 httrack source: source-nmu-has-incorrect-version-number
 
 # The bundled HTML pages are the genuine upstream documentation taken from

debian/upstream/metadata

@@ -0,0 +1,6 @@
+---
+Repository: https://github.com/xroche/httrack.git
+Repository-Browse: https://github.com/xroche/httrack
+Bug-Database: https://github.com/xroche/httrack/issues
+Bug-Submit: https://github.com/xroche/httrack/issues/new
+Contact: Xavier Roche <roche@httrack.com>

debian/webhttrack.files

@@ -4,3 +4,4 @@ usr/share/man/man1/webhttrack.1
 usr/share/man/man1/htsserver.1
 usr/share/applications/WebHTTrack-Websites.desktop
 usr/share/applications/WebHTTrack.desktop
+usr/share/metainfo/com.httrack.WebHTTrack.metainfo.xml

depcomp

@@ -1,791 +0,0 @@
-#! /bin/sh
-# depcomp - compile a program generating dependencies as side-effects
-
-scriptversion=2018-03-07.03; # UTC
-
-# Copyright (C) 1999-2021 Free Software Foundation, Inc.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
-
-case $1 in
-  '')
-    echo "$0: No command.  Try '$0 --help' for more information." 1>&2
-    exit 1;
-    ;;
-  -h | --h*)
-    cat <<\EOF
-Usage: depcomp [--help] [--version] PROGRAM [ARGS]
-
-Run PROGRAMS ARGS to compile a file, generating dependencies
-as side-effects.
-
-Environment variables:
-  depmode     Dependency tracking mode.
-  source      Source file read by 'PROGRAMS ARGS'.
-  object      Object file output by 'PROGRAMS ARGS'.
-  DEPDIR      directory where to store dependencies.
-  depfile     Dependency file to output.
-  tmpdepfile  Temporary file to use when outputting dependencies.
-  libtool     Whether libtool is used (yes/no).
-
-Report bugs to <bug-automake@gnu.org>.
-EOF
-    exit $?
-    ;;
-  -v | --v*)
-    echo "depcomp $scriptversion"
-    exit $?
-    ;;
-esac
-
-# Get the directory component of the given path, and save it in the
-# global variables '$dir'.  Note that this directory component will
-# be either empty or ending with a '/' character.  This is deliberate.
-set_dir_from ()
-{
-  case $1 in
-    */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
-      *) dir=;;
-  esac
-}
-
-# Get the suffix-stripped basename of the given path, and save it the
-# global variable '$base'.
-set_base_from ()
-{
-  base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
-}
-
-# If no dependency file was actually created by the compiler invocation,
-# we still have to create a dummy depfile, to avoid errors with the
-# Makefile "include basename.Plo" scheme.
-make_dummy_depfile ()
-{
-  echo "#dummy" > "$depfile"
-}
-
-# Factor out some common post-processing of the generated depfile.
-# Requires the auxiliary global variable '$tmpdepfile' to be set.
-aix_post_process_depfile ()
-{
-  # If the compiler actually managed to produce a dependency file,
-  # post-process it.
-  if test -f "$tmpdepfile"; then
-    # Each line is of the form 'foo.o: dependency.h'.
-    # Do two passes, one to just change these to
-    #   $object: dependency.h
-    # and one to simply output
-    #   dependency.h:
-    # which is needed to avoid the deleted-header problem.
-    { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
-      sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
-    } > "$depfile"
-    rm -f "$tmpdepfile"
-  else
-    make_dummy_depfile
-  fi
-}
-
-# A tabulation character.
-tab='	'
-# A newline character.
-nl='
-'
-# Character ranges might be problematic outside the C locale.
-# These definitions help.
-upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
-lower=abcdefghijklmnopqrstuvwxyz
-digits=0123456789
-alpha=${upper}${lower}
-
-if test -z "$depmode" || test -z "$source" || test -z "$object"; then
-  echo "depcomp: Variables source, object and depmode must be set" 1>&2
-  exit 1
-fi
-
-# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
-depfile=${depfile-`echo "$object" |
-  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
-tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
-
-rm -f "$tmpdepfile"
-
-# Avoid interferences from the environment.
-gccflag= dashmflag=
-
-# Some modes work just like other modes, but use different flags.  We
-# parameterize here, but still list the modes in the big case below,
-# to make depend.m4 easier to write.  Note that we *cannot* use a case
-# here, because this file can only contain one case statement.
-if test "$depmode" = hp; then
-  # HP compiler uses -M and no extra arg.
-  gccflag=-M
-  depmode=gcc
-fi
-
-if test "$depmode" = dashXmstdout; then
-  # This is just like dashmstdout with a different argument.
-  dashmflag=-xM
-  depmode=dashmstdout
-fi
-
-cygpath_u="cygpath -u -f -"
-if test "$depmode" = msvcmsys; then
-  # This is just like msvisualcpp but w/o cygpath translation.
-  # Just convert the backslash-escaped backslashes to single forward
-  # slashes to satisfy depend.m4
-  cygpath_u='sed s,\\\\,/,g'
-  depmode=msvisualcpp
-fi
-
-if test "$depmode" = msvc7msys; then
-  # This is just like msvc7 but w/o cygpath translation.
-  # Just convert the backslash-escaped backslashes to single forward
-  # slashes to satisfy depend.m4
-  cygpath_u='sed s,\\\\,/,g'
-  depmode=msvc7
-fi
-
-if test "$depmode" = xlc; then
-  # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
-  gccflag=-qmakedep=gcc,-MF
-  depmode=gcc
-fi
-
-case "$depmode" in
-gcc3)
-## gcc 3 implements dependency tracking that does exactly what
-## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
-## it if -MD -MP comes after the -MF stuff.  Hmm.
-## Unfortunately, FreeBSD c89 acceptance of flags depends upon
-## the command line argument order; so add the flags where they
-## appear in depend2.am.  Note that the slowdown incurred here
-## affects only configure: in makefiles, %FASTDEP% shortcuts this.
-  for arg
-  do
-    case $arg in
-    -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
-    *)  set fnord "$@" "$arg" ;;
-    esac
-    shift # fnord
-    shift # $arg
-  done
-  "$@"
-  stat=$?
-  if test $stat -ne 0; then
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  mv "$tmpdepfile" "$depfile"
-  ;;
-
-gcc)
-## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
-## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
-## (see the conditional assignment to $gccflag above).
-## There are various ways to get dependency output from gcc.  Here's
-## why we pick this rather obscure method:
-## - Don't want to use -MD because we'd like the dependencies to end
-##   up in a subdir.  Having to rename by hand is ugly.
-##   (We might end up doing this anyway to support other compilers.)
-## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
-##   -MM, not -M (despite what the docs say).  Also, it might not be
-##   supported by the other compilers which use the 'gcc' depmode.
-## - Using -M directly means running the compiler twice (even worse
-##   than renaming).
-  if test -z "$gccflag"; then
-    gccflag=-MD,
-  fi
-  "$@" -Wp,"$gccflag$tmpdepfile"
-  stat=$?
-  if test $stat -ne 0; then
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  rm -f "$depfile"
-  echo "$object : \\" > "$depfile"
-  # The second -e expression handles DOS-style file names with drive
-  # letters.
-  sed -e 's/^[^:]*: / /' \
-      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
-## This next piece of magic avoids the "deleted header file" problem.
-## The problem is that when a header file which appears in a .P file
-## is deleted, the dependency causes make to die (because there is
-## typically no way to rebuild the header).  We avoid this by adding
-## dummy dependencies for each header file.  Too bad gcc doesn't do
-## this for us directly.
-## Some versions of gcc put a space before the ':'.  On the theory
-## that the space means something, we add a space to the output as
-## well.  hp depmode also adds that space, but also prefixes the VPATH
-## to the object.  Take care to not repeat it in the output.
-## Some versions of the HPUX 10.20 sed can't process this invocation
-## correctly.  Breaking it into two sed invocations is a workaround.
-  tr ' ' "$nl" < "$tmpdepfile" \
-    | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
-    | sed -e 's/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-hp)
-  # This case exists only to let depend.m4 do its work.  It works by
-  # looking at the text of this script.  This case will never be run,
-  # since it is checked for above.
-  exit 1
-  ;;
-
-sgi)
-  if test "$libtool" = yes; then
-    "$@" "-Wp,-MDupdate,$tmpdepfile"
-  else
-    "$@" -MDupdate "$tmpdepfile"
-  fi
-  stat=$?
-  if test $stat -ne 0; then
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  rm -f "$depfile"
-
-  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
-    echo "$object : \\" > "$depfile"
-    # Clip off the initial element (the dependent).  Don't try to be
-    # clever and replace this with sed code, as IRIX sed won't handle
-    # lines with more than a fixed number of characters (4096 in
-    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
-    # the IRIX cc adds comments like '#:fec' to the end of the
-    # dependency line.
-    tr ' ' "$nl" < "$tmpdepfile" \
-      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
-      | tr "$nl" ' ' >> "$depfile"
-    echo >> "$depfile"
-    # The second pass generates a dummy entry for each header file.
-    tr ' ' "$nl" < "$tmpdepfile" \
-      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
-      >> "$depfile"
-  else
-    make_dummy_depfile
-  fi
-  rm -f "$tmpdepfile"
-  ;;
-
-xlc)
-  # This case exists only to let depend.m4 do its work.  It works by
-  # looking at the text of this script.  This case will never be run,
-  # since it is checked for above.
-  exit 1
-  ;;
-
-aix)
-  # The C for AIX Compiler uses -M and outputs the dependencies
-  # in a .u file.  In older versions, this file always lives in the
-  # current directory.  Also, the AIX compiler puts '$object:' at the
-  # start of each line; $object doesn't have directory information.
-  # Version 6 uses the directory in both cases.
-  set_dir_from "$object"
-  set_base_from "$object"
-  if test "$libtool" = yes; then
-    tmpdepfile1=$dir$base.u
-    tmpdepfile2=$base.u
-    tmpdepfile3=$dir.libs/$base.u
-    "$@" -Wc,-M
-  else
-    tmpdepfile1=$dir$base.u
-    tmpdepfile2=$dir$base.u
-    tmpdepfile3=$dir$base.u
-    "$@" -M
-  fi
-  stat=$?
-  if test $stat -ne 0; then
-    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
-    exit $stat
-  fi
-
-  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
-  do
-    test -f "$tmpdepfile" && break
-  done
-  aix_post_process_depfile
-  ;;
-
-tcc)
-  # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
-  # FIXME: That version still under development at the moment of writing.
-  #        Make that this statement remains true also for stable, released
-  #        versions.
-  # It will wrap lines (doesn't matter whether long or short) with a
-  # trailing '\', as in:
-  #
-  #   foo.o : \
-  #    foo.c \
-  #    foo.h \
-  #
-  # It will put a trailing '\' even on the last line, and will use leading
-  # spaces rather than leading tabs (at least since its commit 0394caf7
-  # "Emit spaces for -MD").
-  "$@" -MD -MF "$tmpdepfile"
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-  # We have to change lines of the first kind to '$object: \'.
-  sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
-  # And for each line of the second kind, we have to emit a 'dep.h:'
-  # dummy dependency, to avoid the deleted-header problem.
-  sed -n -e 's|^  *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-## The order of this option in the case statement is important, since the
-## shell code in configure will try each of these formats in the order
-## listed in this file.  A plain '-MD' option would be understood by many
-## compilers, so we must ensure this comes after the gcc and icc options.
-pgcc)
-  # Portland's C compiler understands '-MD'.
-  # Will always output deps to 'file.d' where file is the root name of the
-  # source file under compilation, even if file resides in a subdirectory.
-  # The object file name does not affect the name of the '.d' file.
-  # pgcc 10.2 will output
-  #    foo.o: sub/foo.c sub/foo.h
-  # and will wrap long lines using '\' :
-  #    foo.o: sub/foo.c ... \
-  #     sub/foo.h ... \
-  #     ...
-  set_dir_from "$object"
-  # Use the source, not the object, to determine the base name, since
-  # that's sadly what pgcc will do too.
-  set_base_from "$source"
-  tmpdepfile=$base.d
-
-  # For projects that build the same source file twice into different object
-  # files, the pgcc approach of using the *source* file root name can cause
-  # problems in parallel builds.  Use a locking strategy to avoid stomping on
-  # the same $tmpdepfile.
-  lockdir=$base.d-lock
-  trap "
-    echo '$0: caught signal, cleaning up...' >&2
-    rmdir '$lockdir'
-    exit 1
-  " 1 2 13 15
-  numtries=100
-  i=$numtries
-  while test $i -gt 0; do
-    # mkdir is a portable test-and-set.
-    if mkdir "$lockdir" 2>/dev/null; then
-      # This process acquired the lock.
-      "$@" -MD
-      stat=$?
-      # Release the lock.
-      rmdir "$lockdir"
-      break
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-      # If the lock is being held by a different process, wait
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-        sleep 1
-        i=`expr $i - 1`
-      done
-    fi
-    i=`expr $i - 1`
-  done
-  trap - 1 2 13 15
-  if test $i -le 0; then
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-    echo "$0: check lockdir '$lockdir'" >&2
-    exit 1
-  fi
-
-  if test $stat -ne 0; then
-    rm -f "$tmpdepfile"
-    exit $stat
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-  rm -f "$depfile"
-  # Each line is of the form `foo.o: dependent.h',
-  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
-  # Do two passes, one to just change these to
-  # `$object: dependent.h' and one to simply `dependent.h:'.
-  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
-  # Some versions of the HPUX 10.20 sed can't process this invocation
-  # correctly.  Breaking it into two sed invocations is a workaround.
-  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
-    | sed -e 's/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-hp2)
-  # The "hp" stanza above does not work with aCC (C++) and HP's ia64
-  # compilers, which have integrated preprocessors.  The correct option
-  # to use with these is +Maked; it writes dependencies to a file named
-  # 'foo.d', which lands next to the object file, wherever that
-  # happens to be.
-  # Much of this is similar to the tru64 case; see comments there.
-  set_dir_from  "$object"
-  set_base_from "$object"
-  if test "$libtool" = yes; then
-    tmpdepfile1=$dir$base.d
-    tmpdepfile2=$dir.libs/$base.d
-    "$@" -Wc,+Maked
-  else
-    tmpdepfile1=$dir$base.d
-    tmpdepfile2=$dir$base.d
-    "$@" +Maked
-  fi
-  stat=$?
-  if test $stat -ne 0; then
-     rm -f "$tmpdepfile1" "$tmpdepfile2"
-     exit $stat
-  fi
-
-  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
-  do
-    test -f "$tmpdepfile" && break
-  done
-  if test -f "$tmpdepfile"; then
-    sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
-    # Add 'dependent.h:' lines.
-    sed -ne '2,${
-               s/^ *//
-               s/ \\*$//
-               s/$/:/
-               p
-             }' "$tmpdepfile" >> "$depfile"
-  else
-    make_dummy_depfile
-  fi
-  rm -f "$tmpdepfile" "$tmpdepfile2"
-  ;;
-
-tru64)
-  # The Tru64 compiler uses -MD to generate dependencies as a side
-  # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
-  # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
-  # dependencies in 'foo.d' instead, so we check for that too.
-  # Subdirectories are respected.
-  set_dir_from  "$object"
-  set_base_from "$object"
-
-  if test "$libtool" = yes; then
-    # Libtool generates 2 separate objects for the 2 libraries.  These
-    # two compilations output dependencies in $dir.libs/$base.o.d and
-    # in $dir$base.o.d.  We have to check for both files, because
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-    # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
-    # automatically cleaned when .libs/ is deleted, while ignoring
-    # the former would cause a distcleancheck panic.
-    tmpdepfile1=$dir$base.o.d          # libtool 1.5
-    tmpdepfile2=$dir.libs/$base.o.d    # Likewise.
-    tmpdepfile3=$dir.libs/$base.d      # Compaq CCC V6.2-504
-    "$@" -Wc,-MD
-  else
-    tmpdepfile1=$dir$base.d
-    tmpdepfile2=$dir$base.d
-    tmpdepfile3=$dir$base.d
-    "$@" -MD
-  fi
-
-  stat=$?
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-    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
-    exit $stat
-  fi
-
-  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
-  do
-    test -f "$tmpdepfile" && break
-  done
-  # Same post-processing that is required for AIX mode.
-  aix_post_process_depfile
-  ;;
-
-msvc7)
-  if test "$libtool" = yes; then
-    showIncludes=-Wc,-showIncludes
-  else
-    showIncludes=-showIncludes
-  fi
-  "$@" $showIncludes > "$tmpdepfile"
-  stat=$?
-  grep -v '^Note: including file: ' "$tmpdepfile"
-  if test $stat -ne 0; then
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  rm -f "$depfile"
-  echo "$object : \\" > "$depfile"
-  # The first sed program below extracts the file names and escapes
-  # backslashes for cygpath.  The second sed program outputs the file
-  # name when reading, but also accumulates all include files in the
-  # hold buffer in order to output them again at the end.  This only
-  # works with sed implementations that can handle large buffers.
-  sed < "$tmpdepfile" -n '
-/^Note: including file:  *\(.*\)/ {
-  s//\1/
-  s/\\/\\\\/g
-  p
-}' | $cygpath_u | sort -u | sed -n '
-s/ /\\ /g
-s/\(.*\)/'"$tab"'\1 \\/p
-s/.\(.*\) \\/\1:/
-H
-$ {
-  s/.*/'"$tab"'/
-  G
-  p
-}' >> "$depfile"
-  echo >> "$depfile" # make sure the fragment doesn't end with a backslash
-  rm -f "$tmpdepfile"
-  ;;
-
-msvc7msys)
-  # This case exists only to let depend.m4 do its work.  It works by
-  # looking at the text of this script.  This case will never be run,
-  # since it is checked for above.
-  exit 1
-  ;;
-
-#nosideeffect)
-  # This comment above is used by automake to tell side-effect
-  # dependency tracking mechanisms from slower ones.
-
-dashmstdout)
-  # Important note: in order to support this mode, a compiler *must*
-  # always write the preprocessed file to stdout, regardless of -o.
-  "$@" || exit $?
-
-  # Remove the call to Libtool.
-  if test "$libtool" = yes; then
-    while test "X$1" != 'X--mode=compile'; do
-      shift
-    done
-    shift
-  fi
-
-  # Remove '-o $object'.
-  IFS=" "
-  for arg
-  do
-    case $arg in
-    -o)
-      shift
-      ;;
-    $object)
-      shift
-      ;;
-    *)
-      set fnord "$@" "$arg"
-      shift # fnord
-      shift # $arg
-      ;;
-    esac
-  done
-
-  test -z "$dashmflag" && dashmflag=-M
-  # Require at least two characters before searching for ':'
-  # in the target name.  This is to cope with DOS-style filenames:
-  # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
-  "$@" $dashmflag |
-    sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
-  rm -f "$depfile"
-  cat < "$tmpdepfile" > "$depfile"
-  # Some versions of the HPUX 10.20 sed can't process this sed invocation
-  # correctly.  Breaking it into two sed invocations is a workaround.
-  tr ' ' "$nl" < "$tmpdepfile" \
-    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
-    | sed -e 's/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-dashXmstdout)
-  # This case only exists to satisfy depend.m4.  It is never actually
-  # run, as this mode is specially recognized in the preamble.
-  exit 1
-  ;;
-
-makedepend)
-  "$@" || exit $?
-  # Remove any Libtool call
-  if test "$libtool" = yes; then
-    while test "X$1" != 'X--mode=compile'; do
-      shift
-    done
-    shift
-  fi
-  # X makedepend
-  shift
-  cleared=no eat=no
-  for arg
-  do
-    case $cleared in
-    no)
-      set ""; shift
-      cleared=yes ;;
-    esac
-    if test $eat = yes; then
-      eat=no
-      continue
-    fi
-    case "$arg" in
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-      set fnord "$@" "$arg"; shift ;;
-    # Strip any option that makedepend may not understand.  Remove
-    # the object too, otherwise makedepend will parse it as a source file.
-    -arch)
-      eat=yes ;;
-    -*|$object)
-      ;;
-    *)
-      set fnord "$@" "$arg"; shift ;;
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-  done
-  obj_suffix=`echo "$object" | sed 's/^.*\././'`
-  touch "$tmpdepfile"
-  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
-  rm -f "$depfile"
-  # makedepend may prepend the VPATH from the source file name to the object.
-  # No need to regex-escape $object, excess matching of '.' is harmless.
-  sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
-  # Some versions of the HPUX 10.20 sed can't process the last invocation
-  # correctly.  Breaking it into two sed invocations is a workaround.
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-    | tr ' ' "$nl" \
-    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
-    | sed -e 's/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile" "$tmpdepfile".bak
-  ;;
-
-cpp)
-  # Important note: in order to support this mode, a compiler *must*
-  # always write the preprocessed file to stdout.
-  "$@" || exit $?
-
-  # Remove the call to Libtool.
-  if test "$libtool" = yes; then
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-      shift
-    done
-    shift
-  fi
-
-  # Remove '-o $object'.
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-  for arg
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-    case $arg in
-    -o)
-      shift
-      ;;
-    $object)
-      shift
-      ;;
-    *)
-      set fnord "$@" "$arg"
-      shift # fnord
-      shift # $arg
-      ;;
-    esac
-  done
-
-  "$@" -E \
-    | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
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-    | sed '$ s: \\$::' > "$tmpdepfile"
-  rm -f "$depfile"
-  echo "$object : \\" > "$depfile"
-  cat < "$tmpdepfile" >> "$depfile"
-  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-msvisualcpp)
-  # Important note: in order to support this mode, a compiler *must*
-  # always write the preprocessed file to stdout.
-  "$@" || exit $?
-
-  # Remove the call to Libtool.
-  if test "$libtool" = yes; then
-    while test "X$1" != 'X--mode=compile'; do
-      shift
-    done
-    shift
-  fi
-
-  IFS=" "
-  for arg
-  do
-    case "$arg" in
-    -o)
-      shift
-      ;;
-    $object)
-      shift
-      ;;
-    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
-        set fnord "$@"
-        shift
-        shift
-        ;;
-    *)
-        set fnord "$@" "$arg"
-        shift
-        shift
-        ;;
-    esac
-  done
-  "$@" -E 2>/dev/null |
-  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
-  rm -f "$depfile"
-  echo "$object : \\" > "$depfile"
-  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
-  echo "$tab" >> "$depfile"
-  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-msvcmsys)
-  # This case exists only to let depend.m4 do its work.  It works by
-  # looking at the text of this script.  This case will never be run,
-  # since it is checked for above.
-  exit 1
-  ;;
-
-none)
-  exec "$@"
-  ;;
-
-*)
-  echo "Unknown depmode $depmode" 1>&2
-  exit 1
-  ;;
-esac
-
-exit 0
-
-# Local Variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'before-save-hook 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC0"
-# time-stamp-end: "; # UTC"
-# End:

fuzz/Makefile.am

@@ -0,0 +1,44 @@
+# libFuzzer harnesses; built only with --enable-fuzzers (requires clang).
+if FUZZERS
+noinst_PROGRAMS = fuzz-charset fuzz-meta fuzz-idna fuzz-entities \
+	fuzz-unescape fuzz-filters fuzz-url fuzz-header fuzz-cachendx
+endif
+
+AM_CPPFLAGS = \
+	@DEFAULT_CFLAGS@ \
+	@THREADS_CFLAGS@ \
+	@V6_FLAG@ \
+	@LFS_FLAG@ \
+	-I$(top_srcdir)/src \
+	-I$(top_srcdir)/src/coucal
+
+# Static-link libhttrack.la: the internal symbols are hidden in the .so.
+AM_LDFLAGS = @DEFAULT_LDFLAGS@ -fsanitize=fuzzer -static-libtool-libs
+LDADD = $(top_builddir)/src/libhttrack.la $(THREADS_LIBS)
+
+fuzz_charset_SOURCES = fuzz-charset.c fuzz.h
+fuzz_meta_SOURCES = fuzz-meta.c fuzz.h
+fuzz_idna_SOURCES = fuzz-idna.c fuzz.h
+fuzz_entities_SOURCES = fuzz-entities.c fuzz.h
+fuzz_unescape_SOURCES = fuzz-unescape.c fuzz.h
+fuzz_filters_SOURCES = fuzz-filters.c fuzz.h
+fuzz_url_SOURCES = fuzz-url.c fuzz.h
+fuzz_header_SOURCES = fuzz-header.c fuzz.h
+fuzz_cachendx_SOURCES = fuzz-cachendx.c fuzz.h
+
+# List corpus files explicitly: automake does not expand EXTRA_DIST globs.
+EXTRA_DIST = README.md run-fuzzers.sh \
+	corpus/charset/utf8.txt corpus/charset/latin1.txt corpus/charset/sjis.txt \
+	corpus/meta/meta-charset.html corpus/meta/meta-http-equiv.html \
+	corpus/idna/idna.txt corpus/idna/unicode.txt \
+	corpus/idna/regress-multilabel-leak.txt \
+	corpus/entities/entities.txt \
+	corpus/unescape/percent.txt \
+	corpus/filters/filter.bin corpus/filters/filter-size.bin \
+	corpus/filters/regress-empty-subject-unique.bin \
+	corpus/url/http-url.txt corpus/url/relative-path.txt \
+	corpus/url/regress-file-empty-path.txt corpus/url/regress-long-path-abort.txt \
+	corpus/header/full-response.txt corpus/header/redirect.txt \
+	corpus/cachendx/new-format.txt corpus/cachendx/old-format.txt \
+	corpus/cachendx/regress-overadvance.bin \
+	corpus/cachendx/regress-truncated-entry.bin

fuzz/README.md

@@ -0,0 +1,15 @@
+# Fuzzing httrack
+
+libFuzzer harnesses for the pure hostile-input parsers (charset/UTF-8/IDNA codecs, entity and percent decoders, wildcard filters, URL splitter). Off by default; needs clang.
+
+```sh
+./bootstrap
+mkdir /var/tmp/bld-fuzz && cd /var/tmp/bld-fuzz
+CC=clang CFLAGS="-fsanitize=address,undefined -fno-sanitize-recover=all -g -O1" \
+  LDFLAGS="-fsanitize=address,undefined" \
+  bash /path/to/httrack/configure --enable-fuzzers --disable-shared
+make
+bash /path/to/httrack/fuzz/run-fuzzers.sh fuzz 60   # 60s per target
+```
+
+Run one target by hand: `fuzz/fuzz-url -max_total_time=300 corpusdir fuzz/corpus/url`. Seed corpora live in `corpus/<target>/`; a crash reproducer is replayed with `fuzz/fuzz-url crash-file`.

fuzz/corpus/cachendx/new-format.txt

@@ -0,0 +1,7 @@
+8
+CACHE-1.1
+28
+Mon, 01 Jan 2024 00:00:00 GMT
+www.example.com
+/index.html
+123

fuzz/corpus/cachendx/old-format.txt

@@ -0,0 +1,5 @@
+3
+1.0
+www.example.com
+/page
+5

fuzz/corpus/cachendx/regress-overadvance.bin

@@ -0,0 +1,2 @@
+32768
+CACHE-1.1

fuzz/corpus/cachendx/regress-truncated-entry.bin

@@ -0,0 +1,5 @@
+8
+CACHE-1.1
+1
+x
+www.example.com

fuzz/corpus/charset/latin1.txt

@@ -0,0 +1 @@
+
café naďve ¤

fuzz/corpus/charset/sjis.txt

@@ -0,0 +1 @@
+コンピュータ

fuzz/corpus/entities/entities.txt

@@ -0,0 +1 @@
+&<>A☃é&notarealentity;�

fuzz/corpus/filters/regress-empty-subject-unique.bin

@@ -0,0 +1 @@
+**((

fuzz/corpus/header/full-response.txt

@@ -0,0 +1,10 @@
+HTTP/1.1 200 OK
+Content-Type: text/html; charset=utf-8
+Content-Length: 1234
+Content-Encoding: gzip
+Last-Modified: Mon, 01 Jan 2024 00:00:00 GMT
+Etag: "abc"
+Location: http://example.com/x
+Set-Cookie: ID=42; path=/; domain=.example.com
+Content-Range: bytes 0-99/100
+Transfer-Encoding: chunked

fuzz/corpus/header/redirect.txt

@@ -0,0 +1,3 @@
+HTTP/1.0 301 Moved
+Location: /elsewhere
+Content-Disposition: attachment; filename="a.pdf"

fuzz/corpus/idna/idna.txt

@@ -0,0 +1 @@
+xn--bcher-kva.example.com

fuzz/corpus/idna/regress-multilabel-leak.txt

@@ -0,0 +1 @@
+büchev.例å­bücheple

fuzz/corpus/idna/unicode.txt

@@ -0,0 +1 @@
+bücher.例子.example

fuzz/corpus/meta/meta-charset.html

@@ -0,0 +1 @@
+<html><head><meta charset="utf-8"></head><body>x</body></html>

fuzz/corpus/meta/meta-http-equiv.html

@@ -0,0 +1 @@
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">

fuzz/corpus/unescape/percent.txt

@@ -0,0 +1 @@
+%41%zz%%20%c3%a9+%2e%2e%2f

fuzz/corpus/url/http-url.txt

@@ -0,0 +1 @@
+http://user:pass@www.example.com:8080/a/b/../c/./d.html?q=1#frag

fuzz/corpus/url/regress-file-empty-path.txt

@@ -0,0 +1 @@
+file://

fuzz/corpus/url/regress-long-path-abort.txt

@@ -0,0 +1 @@
+ftpumŠ[/../e0O/../itpumÙ/ftpumŠ[/../e0O/../itpumÙ<6D>Š[/../O/../f9O_i<5F>W/../O/../90O/../itpumÙ/ftpumŠ[/../e0O/../itpumÙ<6D>Š[/.../e0O/../itpumÙ<6D>Š[/../O/../f9O_i<5F>W/.¿ù../O/../9O_imÙ<6D>Š<EFBFBD>W/../_/../../e0O/../f9O_./f9O_i<5F>W/../O/../90O/./e0O/../itpumÙ<6D>Š[/../O/../f9O_i<5F>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/../../e/../f9OmÙ<6D>Š<EFBFBD>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/..O_imÙ<6D>Š<EFBFBD>W/../O/../../e0O/../f9O_imÙ<6D>Š<EFBFBD>W/../O/.._i<5F>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/../../e0O/../f9O_i/../O/../f9O_i<5F>W/../O/../90O/../itpumÙ/ftpumŠ[/../e0O/../itpumÙ<6D>Š[/../O/../f9O_i<5F>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/../../e0O/../f9OmÙ<6D>Š<EFBFBD>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/..O_imÙ<6D>Š<EFBFBD>W//O/../f9O_i../f9O_i<5F>W/../O/../90O/../itpumÙ/ftpumŠ[/../e0O/../itpumÙ<6D>Š[/.../e0O/../itpumÙ<6D>Š[/../O/../f9O_i<5F>W/.¿ù../O/../9O_imÙ<6D>Š<EFBFBD>W/../_/../../e0O/../f9O_./f9O_i<5F>W/../O/../90O/./e0O/../itpumÙ<6D>Š[/../O/../f9O_i<5F>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/../../e/../f9OmÙ<6D>Š<EFBFBD>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/..O_imÙ<6D>Š<EFBFBD>W/../O/../../e0O/../f9O_imÙ<6D>Š<EFBFBD>W/../O/.._i<5F>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/../../e0O/../f9O_i/../O/../f9O_i<5F>W/../O/../90O/../itpumÙ/ftpumŠ[/../e0O/../itpumÙ<6D>Š[/../O/../f9O_i<5F>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/../../e0O/../f9OmÙ<6D>Š<EFBFBD>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/..O_imÙ<6D>Š<EFBFBD>W//O/../f9O_i<5F>W/.¿ù../O/../9O_imÙ<6D>Š<EFBFBD>W/../_/../../e0O/../f9O_./f9O_i<5F>W/../O/../90O/./e0O/../itpumÙ<6D>Š[/../O/../f9O_i<5F>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/../../e/../f9OmÙ<6D>Š<EFBFBD>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/..O_imÙ<6D>Š<EFBFBD>W/../O/../../e0O/../f9O_imÙ<6D>Š<EFBFBD>W/../O/.._f9O_i../f9O_i<5F>W/../O/../90O/../itpumÙ/ftpumŠ[/../e0O/../itpumÙ<6D>Š[/.../e0O/../itpumÙ<6D>Š[/../O/../f9O_i<5F>W/.¿ù../O/../9O_imÙ<6D>Š<EFBFBD>W/../_/../../e0O/../f9O_./f9O_i<5F>W/../O/../90O/./e0O/../itpumÙ<6D>Š[/../O/../f9O_i<5F>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/../../e/../f9OmÙ<6D>Š<EFBFBD>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/..O_imÙ<6D>Š<EFBFBD>W/../O/../../e0O/../f9O_imÙ<6D>Š<EFBFBD>W/../O/.._i<5F>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/../../e0O/../f9O_i/../O/../f9O_i<5F>W/../O/../90O/../itpumÙ/ftpumŠ[/../e0O/../itpumÙ<6D>Š[/../O/../f9O_i<5F>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/../../e0O/../f9OmÙ<6D>Š<EFBFBD>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/..O_imÙ<6D>Š<EFBFBD>W//O/../f9O_i<5F>W/.¿ù../O/../9O_imÙ<6D>Š<EFBFBD>W/../_/../../e0O/../f9O_./f9O_i<5F>W/../O/../90O/./e0O/../itpumÙ<6D>Š[/../O/../f9O_i<5F>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/../../e/../f9OmÙ<6D>Š<EFBFBD>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/..O_imÙ<6D>Š<EFBFBD>W/../O/../../e0O/../f9O_imÙ<6D>Š<EFBFBD>W/../O/.._i<5F>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/../../e0O/../f9O_i/../O/../f9O_i<5F>W/../O/../90O/../itpumÙ/ftpumŠ[/../e0O/../itpumÙ<6D>Š[/../O/../f9O_i<5F>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/i<>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/../../e0O/../f9O_i/../O/../f9O_i<5F>W/../O/../90O/../itpumÙ/ftpumŠ[/../e0O/../itpumÙ<6D>Š[/../O/../f9O_i<5F>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/../../e0O/../f9OmÙ<6D>Š<EFBFBD>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/..O_im<69>W/.¿ù../O/../9O_imÙ<6D>Š<EFBFBD>W/../_/../../e0O/../f9O_./f9O_i<5F>W/../O/../90O/./e0O/../itpumÙ<6D>Š[/../O/../f9O_i<5F>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/../../e/../f9OmÙ<6D>Š<EFBFBD>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/..O_imÙ<6D>Š<EFBFBD>W/../O/../../e0O/../f9O_imÙ<6D>Š<EFBFBD>W/../O/.._i<5F>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/../../e0O/../f9O_i/../O/../f9O_i<5F>W/../O/../90O/../itpumÙ/ftpumŠ[/../e0O/../itpumÙ<6D>Š[/../O/../f9O_i<5F>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/../../e0O/../f9OmÙ<6D>Š<EFBFBD>W/../O/../9O_imÙ<6D>Š<EFBFBD>W/../O/..O_imÙ<6D>Š<EFBFBD>W/../O/../../e0O/9O_imÙ<6D>Š<EFBFBD>W/../O/../

fuzz/corpus/url/relative-path.txt

@@ -0,0 +1 @@
+ftp://ftp.example.com/pub/../file.txt

fuzz/fuzz-cachendx.c

@@ -0,0 +1,65 @@
+/* ------------------------------------------------------------ */
+/*
+HTTrack Website Copier, Offline Browser for Windows and Unix
+Copyright (C) 2026 Xavier Roche and other contributors
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Ethical use: we kindly ask that you NOT use this software to harvest email
+addresses or to collect any other private information about people. Doing so
+would dishonor our work and waste the many hours we have spent on it.
+
+Please visit our Website: http://www.httrack.com
+*/
+
+/* Fuzz the cache-index (.ndx) parser: a corrupt or truncated index must not
+   walk the length-prefixed cache_brstr/cache_binput scan past the buffer.
+   Mirrors the -#C cache-listing scan (htscoremain.c). */
+#include "fuzz.h"
+#include "htscache.h"
+#include "htslib.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+  char *buf = fuzz_strdup(data, size);
+  const char *const end = buf + size;
+  char firstline[256];
+  char *a = buf;
+
+  /* header: two length-prefixed fields (version, last-modified) */
+  a += cache_brstr(a, firstline, sizeof(firstline));
+  a += cache_brstr(a, firstline, sizeof(firstline));
+
+  /* body: newline-delimited host/file/position triples; the length-prefixed
+     scan must stay inside the buffer */
+  while (a != NULL && a < end) {
+    char BIGSTK line[HTS_URLMAXSIZE * 2];
+    char linepos[256];
+    int pos;
+
+    a = strchr(a + 1, '\n');
+    if (a == NULL)
+      break;
+    a++;
+    a += cache_binput(a, end, line, HTS_URLMAXSIZE);
+    a += cache_binput(a, end, line + strlen(line), HTS_URLMAXSIZE);
+    a += cache_binput(a, end, linepos, 200);
+    sscanf(linepos, "%d", &pos);
+    (void) pos;
+  }
+
+  freet(buf);
+  return 0;
+}

fuzz/fuzz-charset.c

@@ -0,0 +1,84 @@
+/* ------------------------------------------------------------ */
+/*
+HTTrack Website Copier, Offline Browser for Windows and Unix
+Copyright (C) 1998 Xavier Roche and other contributors
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Ethical use: we kindly ask that you NOT use this software to harvest email
+addresses or to collect any other private information about people. Doing so
+would dishonor our work and waste the many hours we have spent on it.
+
+Please visit our Website: http://www.httrack.com
+*/
+
+/* Fuzz the charset codecs: hts_convertStringToUTF8/FromUTF8 and the
+   UTF-8/UCS4 primitives (htscharset.c). First input byte picks the charset. */
+#include "fuzz.h"
+#include "htscharset.h"
+
+static const char *const charsets[] = {
+    "utf-8",    "iso-8859-1", "iso-8859-2", "iso-8859-15", "windows-1252",
+    "us-ascii", "shift_jis",  "euc-jp",     "iso-2022-jp", "gb2312",
+    "big5",     "euc-kr",     "koi8-r",     "utf-16",      "unknown-charset",
+};
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+  const char *charset;
+  char *s;
+
+  if (size == 0)
+    return 0;
+  charset = charsets[data[0] % (sizeof(charsets) / sizeof(charsets[0]))];
+  data++, size--;
+  s = fuzz_strdup(data, size);
+
+  {
+    char *utf8 = hts_convertStringToUTF8(s, size, charset);
+    freet(utf8);
+  }
+  {
+    char *enc = hts_convertStringFromUTF8(s, size, charset);
+    freet(enc);
+  }
+  {
+    size_t nChars = 0;
+    hts_UCS4 *ucs = hts_convertUTF8StringToUCS4(s, size, &nChars);
+
+    if (ucs != NULL) {
+      char *back = hts_convertUCS4StringToUTF8(ucs, nChars);
+      freet(back);
+      freet(ucs);
+    }
+  }
+  {
+    size_t i = 0;
+
+    while (i < size) {
+      hts_UCS4 uc = 0;
+      const size_t nr = hts_readUTF8(s + i, size - i, &uc);
+      char out[8];
+
+      if (nr == 0)
+        break;
+      hts_writeUTF8(uc, out, sizeof(out));
+      i += nr;
+    }
+  }
+
+  freet(s);
+  return 0;
+}

fuzz/fuzz-entities.c

@@ -0,0 +1,51 @@
+/* ------------------------------------------------------------ */
+/*
+HTTrack Website Copier, Offline Browser for Windows and Unix
+Copyright (C) 1998 Xavier Roche and other contributors
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Ethical use: we kindly ask that you NOT use this software to harvest email
+addresses or to collect any other private information about people. Doing so
+would dishonor our work and waste the many hours we have spent on it.
+
+Please visit our Website: http://www.httrack.com
+*/
+
+/* Fuzz the HTML entity decoder (htsencoding.c). First input byte picks the
+   destination size, so truncation bounds get exercised too. */
+#include "fuzz.h"
+#include "htsencoding.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+  static const size_t dsizes[] = {1, 2, 8, 64, 4096};
+  size_t dsize;
+  char *src, *dest;
+
+  if (size == 0)
+    return 0;
+  dsize = dsizes[data[0] % (sizeof(dsizes) / sizeof(dsizes[0]))];
+  data++, size--;
+  src = fuzz_strdup(data, size);
+  dest = malloct(dsize);
+
+  (void) hts_unescapeEntities(src, dest, dsize);
+  (void) hts_unescapeEntitiesWithCharset(src, dest, dsize, "iso-8859-1");
+
+  freet(dest);
+  freet(src);
+  return 0;
+}

fuzz/fuzz-filters.c

@@ -0,0 +1,65 @@
+/* ------------------------------------------------------------ */
+/*
+HTTrack Website Copier, Offline Browser for Windows and Unix
+Copyright (C) 1998 Xavier Roche and other contributors
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Ethical use: we kindly ask that you NOT use this software to harvest email
+addresses or to collect any other private information about people. Doing so
+would dishonor our work and waste the many hours we have spent on it.
+
+Please visit our Website: http://www.httrack.com
+*/
+
+/* Fuzz the wildcard filter matcher (htsfilters.c; #148 bracket-range OOB was
+   here). Input splits on the first NUL: pattern, then subject string. */
+#include "fuzz.h"
+#include "htsfilters.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+  char *buf = fuzz_strdup(data, size);
+  const char *joker = buf;
+  const uint8_t *sep = memchr(data, '\0', size);
+  /* subject in its own allocation so ASan bounds it apart from the pattern */
+  char *nom = sep != NULL ? fuzz_strdup(sep + 1, (data + size) - (sep + 1))
+                          : fuzz_strdup(data + size, 0);
+
+  (void) strjoker(nom, joker, NULL, NULL);
+  {
+    LLint sz = (LLint) size;
+    int size_flag = 0;
+
+    (void) strjoker(nom, joker, &sz, &size_flag);
+  }
+  (void) strjokerfind(nom, joker);
+  {
+    char *filter = malloct(strlen(joker) + 2);
+    char *filters[1];
+    LLint sz = (LLint) size;
+    int size_flag = 0, depth = 0;
+
+    filter[0] = '-';
+    memcpy(filter + 1, joker, strlen(joker) + 1);
+    filters[0] = filter;
+    (void) fa_strjoker(0, filters, 1, nom, &sz, &size_flag, &depth);
+    freet(filter);
+  }
+
+  freet(nom);
+  freet(buf);
+  return 0;
+}

fuzz/fuzz-header.c

@@ -0,0 +1,70 @@
+/* ------------------------------------------------------------ */
+/*
+HTTrack Website Copier, Offline Browser for Windows and Unix
+Copyright (C) 2026 Xavier Roche and other contributors
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Ethical use: we kindly ask that you NOT use this software to harvest email
+addresses or to collect any other private information about people. Doing so
+would dishonor our work and waste the many hours we have spent on it.
+
+Please visit our Website: http://www.httrack.com
+*/
+
+/* Fuzz the HTTP response-header parser (htslib.c): treatfirstline on the
+   status line, treathead on each following header. Both consume raw bytes
+   off the wire and copy fields into fixed htsblk buffers; treathead also
+   mutates its line in place and drives cookie parsing. */
+#include "fuzz.h"
+#include "htslib.h"
+#include "htsbauth.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+  char *buf = fuzz_strdup(data, size);
+  htsblk r;
+  t_cookie *cookie = calloct(1, sizeof(*cookie));
+  char *line = malloct(size + 1);
+  char *p = buf;
+  int first = 1;
+
+  memset(&r, 0, sizeof(r));
+  cookie->max_len = (int) sizeof(cookie->data);
+  r.location = malloct(HTS_URLMAXSIZE * 2);
+  r.location[0] = '\0';
+
+  /* feed one header line at a time, as the receive loop does */
+  while (p != NULL && *p != '\0') {
+    char *nl = strchr(p, '\n');
+    size_t n = (nl != NULL) ? (size_t) (nl - p) : strlen(p);
+
+    memcpy(line, p, n);
+    line[n] = '\0';
+    if (first) {
+      treatfirstline(&r, line);
+      first = 0;
+    } else {
+      treathead(cookie, "www.example.com", "/", &r, line);
+    }
+    p = (nl != NULL) ? nl + 1 : NULL;
+  }
+
+  freet(r.location);
+  freet(line);
+  freet(cookie);
+  freet(buf);
+  return 0;
+}

fuzz/fuzz-idna.c

@@ -0,0 +1,47 @@
+/* ------------------------------------------------------------ */
+/*
+HTTrack Website Copier, Offline Browser for Windows and Unix
+Copyright (C) 1998 Xavier Roche and other contributors
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Ethical use: we kindly ask that you NOT use this software to harvest email
+addresses or to collect any other private information about people. Doing so
+would dishonor our work and waste the many hours we have spent on it.
+
+Please visit our Website: http://www.httrack.com
+*/
+
+/* Fuzz the IDNA/punycode codec (htscharset.c, CVE-prone lineage). */
+#include "fuzz.h"
+#include "htscharset.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+  char *s = fuzz_strdup(data, size);
+
+  {
+    char *idna = hts_convertStringUTF8ToIDNA(s, size);
+    freet(idna);
+  }
+  {
+    char *utf8 = hts_convertStringIDNAToUTF8(s, size);
+    freet(utf8);
+  }
+  (void) hts_isStringIDNA(s, size);
+
+  freet(s);
+  return 0;
+}

fuzz/fuzz-meta.c

@@ -0,0 +1,40 @@
+/* ------------------------------------------------------------ */
+/*
+HTTrack Website Copier, Offline Browser for Windows and Unix
+Copyright (C) 1998 Xavier Roche and other contributors
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Ethical use: we kindly ask that you NOT use this software to harvest email
+addresses or to collect any other private information about people. Doing so
+would dishonor our work and waste the many hours we have spent on it.
+
+Please visit our Website: http://www.httrack.com
+*/
+
+/* Fuzz hts_getCharsetFromMeta (htscharset.c): scans raw attacker HTML for a
+   <meta> charset declaration. */
+#include "fuzz.h"
+#include "htscharset.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+  char *html = fuzz_strdup(data, size);
+  char *charset = hts_getCharsetFromMeta(html, size);
+
+  freet(charset);
+  freet(html);
+  return 0;
+}

fuzz/fuzz-unescape.c

@@ -0,0 +1,53 @@
+/* ------------------------------------------------------------ */
+/*
+HTTrack Website Copier, Offline Browser for Windows and Unix
+Copyright (C) 1998 Xavier Roche and other contributors
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Ethical use: we kindly ask that you NOT use this software to harvest email
+addresses or to collect any other private information about people. Doing so
+would dishonor our work and waste the many hours we have spent on it.
+
+Please visit our Website: http://www.httrack.com
+*/
+
+/* Fuzz the URL percent-decoders (htslib.c). First input byte picks the
+   output buffer size, so the bounded-copy contract is exercised. */
+#include "fuzz.h"
+#include "httrack-library.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+  static const size_t bsizes[] = {1, 2, 16, 256, 8192};
+  size_t bsize;
+  char *s, *catbuff;
+
+  if (size == 0)
+    return 0;
+  bsize = bsizes[data[0] % (sizeof(bsizes) / sizeof(bsizes[0]))];
+  data++, size--;
+  s = fuzz_strdup(data, size);
+  catbuff = malloct(bsize);
+
+  (void) unescape_http(catbuff, bsize, s);
+  (void) unescape_http_unharm(catbuff, bsize, s, 0);
+  (void) unescape_http_unharm(catbuff, bsize, s, 1);
+  unescape_amp(s);
+
+  freet(catbuff);
+  freet(s);
+  return 0;
+}

fuzz/fuzz-url.c

@@ -0,0 +1,49 @@
+/* ------------------------------------------------------------ */
+/*
+HTTrack Website Copier, Offline Browser for Windows and Unix
+Copyright (C) 1998 Xavier Roche and other contributors
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Ethical use: we kindly ask that you NOT use this software to harvest email
+addresses or to collect any other private information about people. Doing so
+would dishonor our work and waste the many hours we have spent on it.
+
+Please visit our Website: http://www.httrack.com
+*/
+
+/* Fuzz the URL splitter and path normalizer (htslib.c): ident_url_absolute
+   is the first parser to touch a raw URL; fil_simplifie collapses ./ and ../
+   in place. */
+#include "fuzz.h"
+#include "htscore.h"
+#include "htslib.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+  char *s = fuzz_strdup(data, size);
+  lien_adrfil *af = calloct(1, sizeof(*af));
+  /* fil_simplifie rewrites in place and may grow an empty path to "./" */
+  char *path = malloct(size + 3);
+
+  (void) ident_url_absolute(s, af);
+  memcpy(path, s, size + 1);
+  fil_simplifie(path);
+
+  freet(path);
+  freet(af);
+  freet(s);
+  return 0;
+}

fuzz/fuzz.h

@@ -0,0 +1,51 @@
+/* ------------------------------------------------------------ */
+/*
+HTTrack Website Copier, Offline Browser for Windows and Unix
+Copyright (C) 1998 Xavier Roche and other contributors
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Ethical use: we kindly ask that you NOT use this software to harvest email
+addresses or to collect any other private information about people. Doing so
+would dishonor our work and waste the many hours we have spent on it.
+
+Please visit our Website: http://www.httrack.com
+*/
+
+/* Shared helpers for the libFuzzer harnesses. */
+#ifndef FUZZ_H
+#define FUZZ_H
+
+#define HTS_INTERNAL_BYTECODE
+
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "htsbase.h"
+
+/* Heap NUL-terminated copy of the fuzzer input, so ASan bounds every read. */
+static char *fuzz_strdup(const uint8_t *data, size_t size) {
+  char *s = malloct(size + 1);
+
+  memcpy(s, data, size);
+  s[size] = '\0';
+  return s;
+}
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
+
+#endif

fuzz/run-fuzzers.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+# Drive every built harness against its seed corpus.
+#   run-fuzzers.sh <build-fuzz-dir> check       deterministic replay (CI smoke)
+#   run-fuzzers.sh <build-fuzz-dir> [seconds]   timed mutation run (discovery)
+# Replay is crash/leak-only and never mutates, so it can't hit strjoker's
+# catastrophic backtracking; the timed mode can, hence the per-unit -timeout.
+set -euo pipefail
+
+srcdir=$(cd "$(dirname "$0")" && pwd)
+bld=${1:?usage: run-fuzzers.sh <build-fuzz-dir> [check|seconds]}
+mode=${2:-20}
+
+status=0
+for f in "$bld"/fuzz-*; do
+    if [ ! -f "$f" ] || [ ! -r "$f" ]; then continue; fi
+    case "$f" in *.o | *.c | *.dSYM) continue ;; esac
+    name=$(basename "$f")
+    corpus="$srcdir/corpus/${name#fuzz-}"
+    if [ "$mode" = "check" ]; then
+        echo "=== $name (replay) ==="
+        [ -d "$corpus" ] || continue
+        if ! "$f" -runs=0 -timeout=25 -rss_limit_mb=2048 "$corpus"; then
+            echo "*** $name FAILED on its corpus" >&2
+            status=1
+        fi
+        continue
+    fi
+    work=$(mktemp -d)
+    args=("$work")
+    [ -d "$corpus" ] && args+=("$corpus")
+    echo "=== $name (${mode}s) ==="
+    if ! "$f" -max_total_time="$mode" -timeout=25 -rss_limit_mb=2048 \
+        -artifact_prefix="$work/" -print_final_stats=1 "${args[@]}"; then
+        echo "*** $name FAILED; artifacts:" >&2
+        ls -l "$work" >&2
+        status=1
+    else
+        rm -rf "$work"
+    fi
+done
+exit $status

history.txt

@@ -4,13 +4,73 @@ HTTrack Website Copier release history:
 
 This file lists all changes and fixes that have been made for HTTrack
 
+3.49-11
++ New: parse robots.txt Allow rules and path wildcards per RFC 9309 (#452)
++ New: advertise deflate in Accept-Encoding and decode deflate responses (#450)
++ New: follow <source> and <track> media elements as embedded links (#451)
++ New: added modern web MIME types to the type/extension table (#448)
++ Fixed: enforce the -E time limit during a slow transfer instead of only between files (#481)
++ Fixed: sniff the leading bytes of a download so a misdeclared Content-Type no longer renames a correct URL extension
++ Fixed: fast transfers could be saved under their temporary .delayed placeholder name (#5, #107)
++ Fixed: follow a redirect that maps to the same saved file instead of writing a self-pointing stub (#159)
++ Fixed: several network-facing buffer overflows in the FTP, Java and HTML parsers
++ Fixed: the htsjava plugin could not be loaded (hidden entry points, stale library name)
++ Fixed: HTML-escape truncation and a cache-buffer leak in the parser
++ Changed: modernized the default User-Agent to an honest HTTrack identifier (#449)
++ Changed: decode the full WHATWG set of HTML named character references (#443)
++ Changed: refreshed stale HTTP status, proxy-port and TLS-floor constants (#453)
++ Changed: multiple internal hardening, build, test and CI improvements
+
+3.49-10
++ New: --cookies-file to preload a Netscape cookies.txt before crawling (#215)
++ New: --pause to space out file downloads by a random delay (#185)
++ New: --strip-query to drop selected query keys from the dedup naming (#112)
++ Changed: split the -%u URL hacks into independent --keep-www-prefix, --keep-double-slashes and --keep-query-order toggles (#271)
++ Fixed: follow a redirect Location after dropping its #fragment, instead of requesting the fragment and polluting the saved name (#204)
++ Fixed: escaped brackets inside a *[...] filter character class (#148)
++ Fixed: honor the server's Content-Range when resuming a partial download, instead of appending overlapping bytes (#198)
++ Fixed: abort the download as soon as the response type is excluded by -mime:, instead of fetching then discarding the body (#58)
++ Fixed: keep size-based filter rules neutral until the file size is known (#143)
++ Fixed: stop the mirror with a clean fatal error on a cache write failure, instead of crashing (#174, #219)
++ Fixed: stop the 412/416 partial re-get loop on --continue and --update (#206)
++ Fixed: keep an unrecognized URL tail instead of mangling it to .html (#115)
++ Fixed: honor --tolerant (-%B) on a broken Content-Length, and fix an out-of-bounds read it exposed (#32, #41)
++ Fixed: fall back to the next resolved address when a connection fails or stalls, instead of hanging on a dead IPv6 address
++ Fixed: report why a -%L URL list could not be loaded (#49)
++ Changed: multiple internal hardening, build and CI improvements
+
+.49-9
++ Fixed: file-type detection from the Content-Type header: trust a declared type over a binary URL extension, honor --assume under the delayed type check, and keep a known extension against a bogus or empty Content-Type (#267, #29, #56)
++ Fixed: an uninitialized-buffer read when the Content-Type is empty (#411)
++ Fixed: restored C++ source-compatibility of the installed headers so reverse dependencies (httraqt) build again (#413)
++ Changed: multiple internal build, packaging and test-harness improvements
+
 3.49-8
++ New: tunnel HTTPS downloads through the configured HTTP proxy via CONNECT (#85)
++ New: parse every candidate URL in <img> and <source> srcset lists (#326)
 + Changed: dropped the obsolete OpenSSL linking exception (OpenSSL 3.0+ is Apache-2.0 and GPL-compatible); httrack is now plain GPLv3-or-later
-+ Fixed: link libhtsjava and the libtest examples directly against libc
++ Fixed: several out-of-bounds reads in the HTML/CSS parser on hostile input (#94, #396)
++ Fixed: stored XSS via an unescaped URL in the generated page footer (#165)
++ Fixed: hardened buffer copies throughout the engine against overflow
++ Fixed: capture conditional CSS @import URLs (#94)
++ Fixed: don't crawl xmlns namespace declarations as links (#191)
++ Fixed: don't mistake the method argument of XMLHttpRequest.open for a URL (#218)
++ Fixed: percent-encode parentheses when rewriting CSS url() targets (#163)
++ Fixed: collapse ../ in file:// URLs and widen relative-link handling (#137, #162)
++ Fixed: drop the obsolete $Version/$Path attributes from the request Cookie header, per RFC 6265 (#151)
++ Fixed: keep empty quoted arguments when reloading doit.log for --update/--continue (#106)
++ Fixed: raise the User-Agent and custom-header length limits (#152)
++ Fixed: abort on a long log path (lock-file buffer too small) (#183)
++ Fixed: race in lazy mutex initialization (#297)
++ Fixed: sub-second mtime precision when comparing local files on POSIX (#383)
++ Fixed: modernize OpenSSL TLS initialization for the 3.x to 4.x transition (#308)
 + Fixed: in-place changes made by the postprocess callback were not applied (Roman Sęk)
 + Fixed: "preffered" typo in the help text and man page (yosinn1-blip)
 + Fixed: corrections and updates of the Russian translation (German Aizek)
 + Fixed: corrections and updates of the Danish translation (scootergrisen)
++ Fixed: link libhtsjava and the libtest examples directly against libc
++ New: documented the public library API headers and typed the option fields as named enums
++ Fixed: numerous build, packaging, CI and test-coverage improvements (out-of-tree builds, sanitizer/distcheck CI, shell and Python linting, AppStream metainfo)
 
 3.49-7
 + Fixed: keep generated config.h architecture-independent (Debian #1133728)

html/Makefile.am

@@ -12,28 +12,34 @@ WebIcon16x16dir = $(datadir)/icons/hicolor/16x16/apps
 WebIcon32x32dir = $(datadir)/icons/hicolor/32x32/apps
 WebIcon48x48dir = $(datadir)/icons/hicolor/48x48/apps
 VFolderEntrydir = $(prefix)/share/applications
+MetaInfodir = $(datadir)/metainfo
 
+# Wildcards are globbed against $(srcdir): a bare "*.html" is resolved against
+# the build dir and stays unexpanded (breaking "make") in an out-of-tree build.
+# Explicit filenames (e.g. ../history.txt, div/search.sh) resolve via VPATH and
+# need no prefix.
 HelpHtmlroot_DATA = ../httrack-doc.html ../history.txt
-HelpHtml_DATA = *.html
+HelpHtml_DATA = $(srcdir)/*.html
 HelpHtmldiv_DATA = div/search.sh
-HelpHtmlimg_DATA  = img/*
-HelpHtmlimages_DATA = images/*
+HelpHtmlimg_DATA  = $(srcdir)/img/*
+HelpHtmlimages_DATA = $(srcdir)/images/*
 HelpHtmlTxt_DATA = ../greetings.txt ../history.txt ../license.txt
-WebHtml_DATA = server/*.html server/*.js server/*.css
-WebHtmlimages_DATA = server/images/*
+WebHtml_DATA = $(srcdir)/server/*.html $(srcdir)/server/*.js $(srcdir)/server/*.css
+WebHtmlimages_DATA = $(srcdir)/server/images/*
 # note: converted & normalized by
 # ico2xpm favicon.ico -o httrack.xpm
 # mogrify -format xpm -map /usr/share/doc/menu/examples/cmap.xpm httrack.xpm
-WebPixmap_DATA = server/div/*.xpm
-WebIcon16x16_DATA = server/div/16x16/*.png
-WebIcon32x32_DATA = server/div/32x32/*.png
-WebIcon48x48_DATA = server/div/48x48/*.png
-VFolderEntry_DATA = server/div/*.desktop
+WebPixmap_DATA = $(srcdir)/server/div/*.xpm
+WebIcon16x16_DATA = $(srcdir)/server/div/16x16/*.png
+WebIcon32x32_DATA = $(srcdir)/server/div/32x32/*.png
+WebIcon48x48_DATA = $(srcdir)/server/div/48x48/*.png
+VFolderEntry_DATA = $(srcdir)/server/div/*.desktop
+MetaInfo_DATA = $(srcdir)/server/div/*.metainfo.xml
 
 EXTRA_DIST = $(HelpHtml_DATA) $(HelpHtmlimg_DATA) $(HelpHtmlimages_DATA) \
 	$(HelpHtmldiv_DATA) $(WebHtml_DATA) $(WebHtmlimages_DATA) \
 	$(WebPixmap_DATA) $(WebIcon16x16_DATA) $(WebIcon32x32_DATA) $(WebIcon48x48_DATA) \
-	$(VFolderEntry_DATA) \
+	$(VFolderEntry_DATA) $(MetaInfo_DATA) \
 	httrack.css
 
 install-data-hook:

html/Makefile.in

@@ -1,846 +0,0 @@
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-# @configure_input@
-
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-
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-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-# PARTICULAR PURPOSE.
-
-@SET_MAKE@
-
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-    true; \
-  else \
-    false; \
-  fi; \
-}
-am__make_running_with_option = \
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-	  echo " $(MKDIR_P) '$(DESTDIR)$(WebIcon48x48dir)'"; \
-	  $(MKDIR_P) "$(DESTDIR)$(WebIcon48x48dir)" || exit 1; \
-	fi; \
-	for p in $$list; do \
-	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
-	  echo "$$d$$p"; \
-	done | $(am__base_list) | \
-	while read files; do \
-	  echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(WebIcon48x48dir)'"; \
-	  $(INSTALL_DATA) $$files "$(DESTDIR)$(WebIcon48x48dir)" || exit $$?; \
-	done
-
-uninstall-WebIcon48x48DATA:
-	@$(NORMAL_UNINSTALL)
-	@list='$(WebIcon48x48_DATA)'; test -n "$(WebIcon48x48dir)" || list=; \
-	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
-	dir='$(DESTDIR)$(WebIcon48x48dir)'; $(am__uninstall_files_from_dir)
-install-WebPixmapDATA: $(WebPixmap_DATA)
-	@$(NORMAL_INSTALL)
-	@list='$(WebPixmap_DATA)'; test -n "$(WebPixmapdir)" || list=; \
-	if test -n "$$list"; then \
-	  echo " $(MKDIR_P) '$(DESTDIR)$(WebPixmapdir)'"; \
-	  $(MKDIR_P) "$(DESTDIR)$(WebPixmapdir)" || exit 1; \
-	fi; \
-	for p in $$list; do \
-	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
-	  echo "$$d$$p"; \
-	done | $(am__base_list) | \
-	while read files; do \
-	  echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(WebPixmapdir)'"; \
-	  $(INSTALL_DATA) $$files "$(DESTDIR)$(WebPixmapdir)" || exit $$?; \
-	done
-
-uninstall-WebPixmapDATA:
-	@$(NORMAL_UNINSTALL)
-	@list='$(WebPixmap_DATA)'; test -n "$(WebPixmapdir)" || list=; \
-	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
-	dir='$(DESTDIR)$(WebPixmapdir)'; $(am__uninstall_files_from_dir)
-tags TAGS:
-
-ctags CTAGS:
-
-cscope cscopelist:
-
-distdir: $(BUILT_SOURCES)
-	$(MAKE) $(AM_MAKEFLAGS) distdir-am
-
-distdir-am: $(DISTFILES)
-	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
-	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
-	list='$(DISTFILES)'; \
-	  dist_files=`for file in $$list; do echo $$file; done | \
-	  sed -e "s|^$$srcdirstrip/||;t" \
-	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
-	case $$dist_files in \
-	  */*) $(MKDIR_P) `echo "$$dist_files" | \
-			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
-			   sort -u` ;; \
-	esac; \
-	for file in $$dist_files; do \
-	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
-	  if test -d $$d/$$file; then \
-	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
-	    if test -d "$(distdir)/$$file"; then \
-	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
-	    fi; \
-	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
-	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
-	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
-	    fi; \
-	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
-	  else \
-	    test -f "$(distdir)/$$file" \
-	    || cp -p $$d/$$file "$(distdir)/$$file" \
-	    || exit 1; \
-	  fi; \
-	done
-check-am: all-am
-check: check-am
-all-am: Makefile $(DATA)
-installdirs:
-	for dir in "$(DESTDIR)$(HelpHtmldir)" "$(DESTDIR)$(HelpHtmlTxtdir)" "$(DESTDIR)$(HelpHtmldivdir)" "$(DESTDIR)$(HelpHtmlimagesdir)" "$(DESTDIR)$(HelpHtmlimgdir)" "$(DESTDIR)$(HelpHtmlrootdir)" "$(DESTDIR)$(VFolderEntrydir)" "$(DESTDIR)$(WebHtmldir)" "$(DESTDIR)$(WebHtmlimagesdir)" "$(DESTDIR)$(WebIcon16x16dir)" "$(DESTDIR)$(WebIcon32x32dir)" "$(DESTDIR)$(WebIcon48x48dir)" "$(DESTDIR)$(WebPixmapdir)"; do \
-	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
-	done
-install: install-am
-install-exec: install-exec-am
-install-data: install-data-am
-uninstall: uninstall-am
-
-install-am: all-am
-	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
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-installcheck: installcheck-am
-install-strip:
-	if test -z '$(STRIP)'; then \
-	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
-	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
-	      install; \
-	else \
-	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
-	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
-	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
-	fi
-mostlyclean-generic:
-
-clean-generic:
-
-distclean-generic:
-	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
-	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
-
-maintainer-clean-generic:
-	@echo "This command is intended for maintainers to use"
-	@echo "it deletes files that may require special tools to rebuild."
-clean: clean-am
-
-clean-am: clean-generic clean-libtool mostlyclean-am
-
-distclean: distclean-am
-	-rm -f Makefile
-distclean-am: clean-am distclean-generic
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-dvi: dvi-am
-
-dvi-am:
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-html: html-am
-
-html-am:
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-info: info-am
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-info-am:
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-install-data-am: install-HelpHtmlDATA install-HelpHtmlTxtDATA \
-	install-HelpHtmldivDATA install-HelpHtmlimagesDATA \
-	install-HelpHtmlimgDATA install-HelpHtmlrootDATA \
-	install-VFolderEntryDATA install-WebHtmlDATA \
-	install-WebHtmlimagesDATA install-WebIcon16x16DATA \
-	install-WebIcon32x32DATA install-WebIcon48x48DATA \
-	install-WebPixmapDATA
-	@$(NORMAL_INSTALL)
-	$(MAKE) $(AM_MAKEFLAGS) install-data-hook
-install-dvi: install-dvi-am
-
-install-dvi-am:
-
-install-exec-am:
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-install-html: install-html-am
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-install-html-am:
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-install-info: install-info-am
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-maintainer-clean: maintainer-clean-am
-	-rm -f Makefile
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-pdf: pdf-am
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-ps: ps-am
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-ps-am:
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-uninstall-am: uninstall-HelpHtmlDATA uninstall-HelpHtmlTxtDATA \
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-	uninstall-WebHtmlimagesDATA uninstall-WebIcon16x16DATA \
-	uninstall-WebIcon32x32DATA uninstall-WebIcon48x48DATA \
-	uninstall-WebPixmapDATA
-
-.MAKE: install-am install-data-am install-strip
-
-.PHONY: all all-am check check-am clean clean-generic clean-libtool \
-	cscopelist-am ctags-am distclean distclean-generic \
-	distclean-libtool distdir dvi dvi-am html html-am info info-am \
-	install install-HelpHtmlDATA install-HelpHtmlTxtDATA \
-	install-HelpHtmldivDATA install-HelpHtmlimagesDATA \
-	install-HelpHtmlimgDATA install-HelpHtmlrootDATA \
-	install-VFolderEntryDATA install-WebHtmlDATA \
-	install-WebHtmlimagesDATA install-WebIcon16x16DATA \
-	install-WebIcon32x32DATA install-WebIcon48x48DATA \
-	install-WebPixmapDATA install-am install-data install-data-am \
-	install-data-hook install-dvi install-dvi-am install-exec \
-	install-exec-am install-html install-html-am install-info \
-	install-info-am install-man install-pdf install-pdf-am \
-	install-ps install-ps-am install-strip installcheck \
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-	maintainer-clean-generic mostlyclean mostlyclean-generic \
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-	uninstall-VFolderEntryDATA uninstall-WebHtmlDATA \
-	uninstall-WebHtmlimagesDATA uninstall-WebIcon16x16DATA \
-	uninstall-WebIcon32x32DATA uninstall-WebIcon48x48DATA \
-	uninstall-WebPixmapDATA uninstall-am
-
-.PRECIOUS: Makefile
-
-
-install-data-hook:
-	if test ! -L $(DESTDIR)$(prefix)/share/httrack/html ; then \
-		( cd $(DESTDIR)$(prefix)/share/httrack \
-			&& $(LN_S) $(htmldir) html \
-		) \
-	fi
-
-# Tell versions [3.59,3.63) of GNU make to not export all variables.
-# Otherwise a system limit (for SysV at least) may be exceeded.
-.NOEXPORT:

html/div/search.sh

@@ -1,8 +1,7 @@
-
 #!/bin/sh
 
 # Simple indexing test using HTTrack
-# A "real" script/program would use advanced search, and 
+# A "real" script/program would use advanced search, and
 # use dichotomy to find the word in the index.txt file
 # This script is really basic and NOT optimized, and
 # should not be used for professional purpose :)
@@ -11,50 +10,49 @@ TESTSITE="http://localhost/"
 
 # Create an index if necessary
 if ! test -f "index.txt"; then
-	echo "Building the index .."
-	rm -rf test
-	httrack --display "$TESTSITE"  -%I -O test
-	mv test/index.txt ./
+    echo "Building the index .."
+    rm -rf test
+    httrack --display "$TESTSITE" -%I -O test
+    mv test/index.txt ./
 fi
 
 # Convert crlf to lf
-if test "`head index.txt -n 1 | tr '\r' '#' | grep -c '#'`" = "1"; then
-	echo "Converting index to Unix LF style (not CR/LF) .."
-	mv -f index.txt index.txt.old
-	cat index.txt.old|tr -d '\r' > index.txt
+if test "$(head index.txt -n 1 | tr '\r' '#' | grep -c '#')" = "1"; then
+    echo "Converting index to Unix LF style (not CR/LF) .."
+    mv -f index.txt index.txt.old
+    tr -d '\r' <index.txt.old >index.txt
 fi
 
 keyword=-
 while test -n "$keyword"; do
-	printf "Enter a keyword: "
-	read keyword
+    printf "Enter a keyword: "
+    read -r keyword
 
-	if test -n "$keyword"; then
-		FOUNDK="`grep -niE \"^$keyword\" index.txt`"
+    if test -n "$keyword"; then
+        FOUNDK="$(grep -niE "^$keyword" index.txt)"
 
-		if test -n "$FOUNDK"; then	
-			if ! test `echo "$FOUNDK"|wc -l` = "1"; then
-				# Multiple matches
-				printf "Found multiple keywords: "
-				echo "$FOUNDK"|cut -f2 -d':'|tr '\n' ' '
-				echo ""
-				echo "Use keyword$ to find only one"
-			else
-				# One match
-				N=`echo "$FOUNDK"|cut -f1 -d':'`
-				PM=`tail +$N index.txt|grep -nE "\("|head -n 1`
-				if ! echo "$PM"|grep "ignored">/dev/null; then
-					M=`echo $PM|cut -f1 -d':'`
-					echo "Found in:"
-					cat index.txt | tail "+$N" | head -n "$M" | grep -E "[0-9]* " | cut -f2 -d' '
-				else
-					echo "keyword ignored (too many hits)"
-				fi
-					fi
-		else
-			echo "not found"
-		fi
+        if test -n "$FOUNDK"; then
+            if ! test "$(echo "$FOUNDK" | wc -l)" = "1"; then
+                # Multiple matches
+                printf "Found multiple keywords: "
+                echo "$FOUNDK" | cut -f2 -d':' | tr '\n' ' '
+                echo ""
+                echo "Use keyword$ to find only one"
+            else
+                # One match
+                N=$(echo "$FOUNDK" | cut -f1 -d':')
+                PM=$(tail "+$N" index.txt | grep -nE "\(" | head -n 1)
+                if ! echo "$PM" | grep "ignored" >/dev/null; then
+                    M=$(echo "$PM" | cut -f1 -d':')
+                    echo "Found in:"
+                    tail "+$N" index.txt | head -n "$M" | grep -E "[0-9]* " | cut -f2 -d' '
+                else
+                    echo "keyword ignored (too many hits)"
+                fi
+            fi
+        else
+            echo "not found"
+        fi
 
-	fi
+    fi
 done
-

html/filters.html

@@ -247,7 +247,7 @@ See also: The <a href="faq.html#VF1">FAQ</a><br>
         <td>the \ character</td>
       </tr>
       <tr>
-        <td nowrap><tt>*[\[\]]</tt></td>
+        <td nowrap><tt>*[\[,\]]</tt></td>
         <td>the [ or ] character</td>
       </tr>
       <tr>

html/server/div/WebHTTrack-Websites.desktop

@@ -8,3 +8,6 @@ Comment=Browse Websites Mirrored by WebHTTrack
 Keywords=browse mirrored;
 Exec=webhttrack browse
 Icon=httrack
+# Helper launcher for WebHTTrack's browse mode, not a standalone app: keep it
+# out of software-center catalogs so it doesn't duplicate the main entry.
+X-AppStream-Ignore=true

html/server/div/com.httrack.WebHTTrack.metainfo.xml

@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright 2026 Xavier Roche <roche@httrack.com> -->
+<component type="desktop-application">
+  <id>com.httrack.WebHTTrack</id>
+  <metadata_license>FSFAP</metadata_license>
+  <project_license>GPL-3.0-or-later</project_license>
+  <name>WebHTTrack Website Copier</name>
+  <summary>Copy websites to your computer for offline browsing</summary>
+  <description>
+    <p>
+      WebHTTrack is the web interface to HTTrack, an offline browser utility.
+      It downloads a website from the Internet to a local directory, fetching
+      the HTML, images, and other files and rebuilding the site's link
+      structure so you can browse it offline.
+    </p>
+    <p>
+      A step-by-step web interface guides you through choosing the addresses
+      to mirror and the options to apply. Mirrors can be updated in place and
+      interrupted downloads resumed.
+    </p>
+    <p>Typical uses include:</p>
+    <ul>
+      <li>Keeping an offline copy of a website for reading without a connection</li>
+      <li>Archiving or preserving sites and capturing them for later reference</li>
+      <li>Updating an existing local mirror without downloading it again</li>
+    </ul>
+  </description>
+  <launchable type="desktop-id">WebHTTrack.desktop</launchable>
+  <icon type="stock">httrack</icon>
+  <categories>
+    <category>Network</category>
+  </categories>
+  <keywords>
+    <keyword>offline browser</keyword>
+    <keyword>website copier</keyword>
+    <keyword>mirror</keyword>
+    <keyword>crawl</keyword>
+    <keyword>archiving</keyword>
+  </keywords>
+  <url type="homepage">https://www.httrack.com/</url>
+  <url type="bugtracker">https://github.com/xroche/httrack/issues</url>
+  <developer id="com.httrack">
+    <name>Xavier Roche</name>
+  </developer>
+  <screenshots>
+    <screenshot type="default">
+      <caption>Choosing the addresses and options for a new mirror</caption>
+      <image>https://www.httrack.com/html/images/screenshot_01b.jpg</image>
+    </screenshot>
+  </screenshots>
+  <content_rating type="oars-1.1"/>
+  <releases>
+    <release version="3.49.8" date="2026-06-07"/>
+  </releases>
+</component>

install-sh

@@ -1,541 +0,0 @@
-#!/bin/sh
-# install - install a program, script, or datafile
-
-scriptversion=2020-11-14.01; # UTC
-
-# This originates from X11R5 (mit/util/scripts/install.sh), which was
-# later released in X11R6 (xc/config/util/install.sh) with the
-# following copyright and license.
-#
-# Copyright (C) 1994 X Consortium
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
-# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-#
-# Except as contained in this notice, the name of the X Consortium shall not
-# be used in advertising or otherwise to promote the sale, use or other deal-
-# ings in this Software without prior written authorization from the X Consor-
-# tium.
-#
-#
-# FSF changes to this file are in the public domain.
-#
-# Calling this script install-sh is preferred over install.sh, to prevent
-# 'make' implicit rules from creating a file called install from it
-# when there is no Makefile.
-#
-# This script is compatible with the BSD install script, but was written
-# from scratch.
-
-tab='	'
-nl='
-'
-IFS=" $tab$nl"
-
-# Set DOITPROG to "echo" to test this script.
-
-doit=${DOITPROG-}
-doit_exec=${doit:-exec}
-
-# Put in absolute file names if you don't have them in your path;
-# or use environment vars.
-
-chgrpprog=${CHGRPPROG-chgrp}
-chmodprog=${CHMODPROG-chmod}
-chownprog=${CHOWNPROG-chown}
-cmpprog=${CMPPROG-cmp}
-cpprog=${CPPROG-cp}
-mkdirprog=${MKDIRPROG-mkdir}
-mvprog=${MVPROG-mv}
-rmprog=${RMPROG-rm}
-stripprog=${STRIPPROG-strip}
-
-posix_mkdir=
-
-# Desired mode of installed file.
-mode=0755
-
-# Create dirs (including intermediate dirs) using mode 755.
-# This is like GNU 'install' as of coreutils 8.32 (2020).
-mkdir_umask=22
-
-backupsuffix=
-chgrpcmd=
-chmodcmd=$chmodprog
-chowncmd=
-mvcmd=$mvprog
-rmcmd="$rmprog -f"
-stripcmd=
-
-src=
-dst=
-dir_arg=
-dst_arg=
-
-copy_on_change=false
-is_target_a_directory=possibly
-
-usage="\
-Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
-   or: $0 [OPTION]... SRCFILES... DIRECTORY
-   or: $0 [OPTION]... -t DIRECTORY SRCFILES...
-   or: $0 [OPTION]... -d DIRECTORIES...
-
-In the 1st form, copy SRCFILE to DSTFILE.
-In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
-In the 4th, create DIRECTORIES.
-
-Options:
-     --help     display this help and exit.
-     --version  display version info and exit.
-
-  -c            (ignored)
-  -C            install only if different (preserve data modification time)
-  -d            create directories instead of installing files.
-  -g GROUP      $chgrpprog installed files to GROUP.
-  -m MODE       $chmodprog installed files to MODE.
-  -o USER       $chownprog installed files to USER.
-  -p            pass -p to $cpprog.
-  -s            $stripprog installed files.
-  -S SUFFIX     attempt to back up existing files, with suffix SUFFIX.
-  -t DIRECTORY  install into DIRECTORY.
-  -T            report an error if DSTFILE is a directory.
-
-Environment variables override the default commands:
-  CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
-  RMPROG STRIPPROG
-
-By default, rm is invoked with -f; when overridden with RMPROG,
-it's up to you to specify -f if you want it.
-
-If -S is not specified, no backups are attempted.
-
-Email bug reports to bug-automake@gnu.org.
-Automake home page: https://www.gnu.org/software/automake/
-"
-
-while test $# -ne 0; do
-  case $1 in
-    -c) ;;
-
-    -C) copy_on_change=true;;
-
-    -d) dir_arg=true;;
-
-    -g) chgrpcmd="$chgrpprog $2"
-        shift;;
-
-    --help) echo "$usage"; exit $?;;
-
-    -m) mode=$2
-        case $mode in
-          *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
-            echo "$0: invalid mode: $mode" >&2
-            exit 1;;
-        esac
-        shift;;
-
-    -o) chowncmd="$chownprog $2"
-        shift;;
-
-    -p) cpprog="$cpprog -p";;
-
-    -s) stripcmd=$stripprog;;
-
-    -S) backupsuffix="$2"
-        shift;;
-
-    -t)
-        is_target_a_directory=always
-        dst_arg=$2
-        # Protect names problematic for 'test' and other utilities.
-        case $dst_arg in
-          -* | [=\(\)!]) dst_arg=./$dst_arg;;
-        esac
-        shift;;
-
-    -T) is_target_a_directory=never;;
-
-    --version) echo "$0 $scriptversion"; exit $?;;
-
-    --) shift
-        break;;
-
-    -*) echo "$0: invalid option: $1" >&2
-        exit 1;;
-
-    *)  break;;
-  esac
-  shift
-done
-
-# We allow the use of options -d and -T together, by making -d
-# take the precedence; this is for compatibility with GNU install.
-
-if test -n "$dir_arg"; then
-  if test -n "$dst_arg"; then
-    echo "$0: target directory not allowed when installing a directory." >&2
-    exit 1
-  fi
-fi
-
-if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
-  # When -d is used, all remaining arguments are directories to create.
-  # When -t is used, the destination is already specified.
-  # Otherwise, the last argument is the destination.  Remove it from $@.
-  for arg
-  do
-    if test -n "$dst_arg"; then
-      # $@ is not empty: it contains at least $arg.
-      set fnord "$@" "$dst_arg"
-      shift # fnord
-    fi
-    shift # arg
-    dst_arg=$arg
-    # Protect names problematic for 'test' and other utilities.
-    case $dst_arg in
-      -* | [=\(\)!]) dst_arg=./$dst_arg;;
-    esac
-  done
-fi
-
-if test $# -eq 0; then
-  if test -z "$dir_arg"; then
-    echo "$0: no input file specified." >&2
-    exit 1
-  fi
-  # It's OK to call 'install-sh -d' without argument.
-  # This can happen when creating conditional directories.
-  exit 0
-fi
-
-if test -z "$dir_arg"; then
-  if test $# -gt 1 || test "$is_target_a_directory" = always; then
-    if test ! -d "$dst_arg"; then
-      echo "$0: $dst_arg: Is not a directory." >&2
-      exit 1
-    fi
-  fi
-fi
-
-if test -z "$dir_arg"; then
-  do_exit='(exit $ret); exit $ret'
-  trap "ret=129; $do_exit" 1
-  trap "ret=130; $do_exit" 2
-  trap "ret=141; $do_exit" 13
-  trap "ret=143; $do_exit" 15
-
-  # Set umask so as not to create temps with too-generous modes.
-  # However, 'strip' requires both read and write access to temps.
-  case $mode in
-    # Optimize common cases.
-    *644) cp_umask=133;;
-    *755) cp_umask=22;;
-
-    *[0-7])
-      if test -z "$stripcmd"; then
-        u_plus_rw=
-      else
-        u_plus_rw='% 200'
-      fi
-      cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
-    *)
-      if test -z "$stripcmd"; then
-        u_plus_rw=
-      else
-        u_plus_rw=,u+rw
-      fi
-      cp_umask=$mode$u_plus_rw;;
-  esac
-fi
-
-for src
-do
-  # Protect names problematic for 'test' and other utilities.
-  case $src in
-    -* | [=\(\)!]) src=./$src;;
-  esac
-
-  if test -n "$dir_arg"; then
-    dst=$src
-    dstdir=$dst
-    test -d "$dstdir"
-    dstdir_status=$?
-    # Don't chown directories that already exist.
-    if test $dstdir_status = 0; then
-      chowncmd=""
-    fi
-  else
-
-    # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
-    # might cause directories to be created, which would be especially bad
-    # if $src (and thus $dsttmp) contains '*'.
-    if test ! -f "$src" && test ! -d "$src"; then
-      echo "$0: $src does not exist." >&2
-      exit 1
-    fi
-
-    if test -z "$dst_arg"; then
-      echo "$0: no destination specified." >&2
-      exit 1
-    fi
-    dst=$dst_arg
-
-    # If destination is a directory, append the input filename.
-    if test -d "$dst"; then
-      if test "$is_target_a_directory" = never; then
-        echo "$0: $dst_arg: Is a directory" >&2
-        exit 1
-      fi
-      dstdir=$dst
-      dstbase=`basename "$src"`
-      case $dst in
-	*/) dst=$dst$dstbase;;
-	*)  dst=$dst/$dstbase;;
-      esac
-      dstdir_status=0
-    else
-      dstdir=`dirname "$dst"`
-      test -d "$dstdir"
-      dstdir_status=$?
-    fi
-  fi
-
-  case $dstdir in
-    */) dstdirslash=$dstdir;;
-    *)  dstdirslash=$dstdir/;;
-  esac
-
-  obsolete_mkdir_used=false
-
-  if test $dstdir_status != 0; then
-    case $posix_mkdir in
-      '')
-        # With -d, create the new directory with the user-specified mode.
-        # Otherwise, rely on $mkdir_umask.
-        if test -n "$dir_arg"; then
-          mkdir_mode=-m$mode
-        else
-          mkdir_mode=
-        fi
-
-        posix_mkdir=false
-	# The $RANDOM variable is not portable (e.g., dash).  Use it
-	# here however when possible just to lower collision chance.
-	tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
-
-	trap '
-	  ret=$?
-	  rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null
-	  exit $ret
-	' 0
-
-	# Because "mkdir -p" follows existing symlinks and we likely work
-	# directly in world-writeable /tmp, make sure that the '$tmpdir'
-	# directory is successfully created first before we actually test
-	# 'mkdir -p'.
-	if (umask $mkdir_umask &&
-	    $mkdirprog $mkdir_mode "$tmpdir" &&
-	    exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
-	then
-	  if test -z "$dir_arg" || {
-	       # Check for POSIX incompatibilities with -m.
-	       # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
-	       # other-writable bit of parent directory when it shouldn't.
-	       # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
-	       test_tmpdir="$tmpdir/a"
-	       ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
-	       case $ls_ld_tmpdir in
-		 d????-?r-*) different_mode=700;;
-		 d????-?--*) different_mode=755;;
-		 *) false;;
-	       esac &&
-	       $mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
-		 ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
-		 test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
-	       }
-	     }
-	  then posix_mkdir=:
-	  fi
-	  rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
-	else
-	  # Remove any dirs left behind by ancient mkdir implementations.
-	  rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
-	fi
-	trap '' 0;;
-    esac
-
-    if
-      $posix_mkdir && (
-        umask $mkdir_umask &&
-        $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
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-      # mkdir does not conform to POSIX,
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-      case $dstdir in
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-      oIFS=$IFS
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-        prefix=$prefix$d
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-              *) qprefix=$prefix;;
-            esac
-            prefixes="$prefixes '$qprefix'"
-          fi
-        fi
-        prefix=$prefix/
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-      if test -n "$prefixes"; then
-        # Don't fail if two instances are running concurrently.
-        (umask $mkdir_umask &&
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-          test -d "$dstdir" || exit 1
-        obsolete_mkdir_used=true
-      fi
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-  if test -n "$dir_arg"; then
-    { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
-    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
-    { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
-      test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
-  else
-
-    # Make a couple of temp file names in the proper directory.
-    dsttmp=${dstdirslash}_inst.$$_
-    rmtmp=${dstdirslash}_rm.$$_
-
-    # Trap to clean up those temp files at exit.
-    trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
-
-    # Copy the file name to the temp name.
-    (umask $cp_umask &&
-     { test -z "$stripcmd" || {
-	 # Create $dsttmp read-write so that cp doesn't create it read-only,
-	 # which would cause strip to fail.
-	 if test -z "$doit"; then
-	   : >"$dsttmp" # No need to fork-exec 'touch'.
-	 else
-	   $doit touch "$dsttmp"
-	 fi
-       }
-     } &&
-     $doit_exec $cpprog "$src" "$dsttmp") &&
-
-    # and set any options; do chmod last to preserve setuid bits.
-    #
-    # If any of these fail, we abort the whole thing.  If we want to
-    # ignore errors from any of these, just make sure not to ignore
-    # errors from the above "$doit $cpprog $src $dsttmp" command.
-    #
-    { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
-    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
-    { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
-    { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
-
-    # If -C, don't bother to copy if it wouldn't change the file.
-    if $copy_on_change &&
-       old=`LC_ALL=C ls -dlL "$dst"     2>/dev/null` &&
-       new=`LC_ALL=C ls -dlL "$dsttmp"  2>/dev/null` &&
-       set -f &&
-       set X $old && old=:$2:$4:$5:$6 &&
-       set X $new && new=:$2:$4:$5:$6 &&
-       set +f &&
-       test "$old" = "$new" &&
-       $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
-    then
-      rm -f "$dsttmp"
-    else
-      # If $backupsuffix is set, and the file being installed
-      # already exists, attempt a backup.  Don't worry if it fails,
-      # e.g., if mv doesn't support -f.
-      if test -n "$backupsuffix" && test -f "$dst"; then
-        $doit $mvcmd -f "$dst" "$dst$backupsuffix" 2>/dev/null
-      fi
-
-      # Rename the file to the real destination.
-      $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
-
-      # The rename failed, perhaps because mv can't rename something else
-      # to itself, or perhaps because mv is so ancient that it does not
-      # support -f.
-      {
-        # Now remove or move aside any old file at destination location.
-        # We try this two ways since rm can't unlink itself on some
-        # systems and the destination file might be busy for other
-        # reasons.  In this case, the final cleanup might fail but the new
-        # file should still install successfully.
-        {
-          test ! -f "$dst" ||
-          $doit $rmcmd "$dst" 2>/dev/null ||
-          { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
-            { $doit $rmcmd "$rmtmp" 2>/dev/null; :; }
-          } ||
-          { echo "$0: cannot unlink or rename $dst" >&2
-            (exit 1); exit 1
-          }
-        } &&
-
-        # Now rename the file to the real destination.
-        $doit $mvcmd "$dsttmp" "$dst"
-      }
-    fi || exit 1
-
-    trap '' 0
-  fi
-done
-
-# Local variables:
-# eval: (add-hook 'before-save-hook 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC0"
-# time-stamp-end: "; # UTC"
-# End:

lang/English.txt

@@ -295,7 +295,7 @@ Max Depth
 Maximum external depth:
 Maximum external depth:
 Filters (refuse/accept links) :
-Filters (refuse/accept links) :
+Filters (refuse/accept links):
 Paths
 Paths
 Save prefs

lang/Makefile.am

@@ -1,6 +1,8 @@
 
 langdir = $(datadir)/httrack/lang
-lang_DATA = *.txt
+# Glob against $(srcdir): a bare "*.txt" is resolved against the build dir and
+# stays unexpanded (breaking "make") in an out-of-tree build.
+lang_DATA = $(srcdir)/*.txt
 langrootdir = $(datadir)/httrack
 langroot_DATA = ../lang.def ../lang.indexes
 

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lang/README.md

@@ -0,0 +1,37 @@
+# Translating HTTrack
+
+Interface strings live here, one `.txt` file per language. `English.txt` is the reference: every other file maps each English string to its translation.
+
+## File format
+
+Plain text, entries in consecutive pairs of lines:
+
+```
+<English string>
+<translation>
+```
+
+The first line of a pair is the lookup key and must stay identical to the one in `English.txt`; translate only the second line. Missing entries fall back to the English text at runtime, so a partial translation works.
+
+Preserve any `\r\n`, `\t` and `printf` placeholders (`%s`, `%d`, ...) in the translation.
+
+A few `LANGUAGE_*` entries at the top describe the file itself:
+
+| Key | Meaning |
+| --- | --- |
+| `LANGUAGE_NAME` | Name shown in the language picker, in its own language (`Deutsch`, not `German`) |
+| `LANGUAGE_ISO` | ISO 639 code, with region if needed (`de`, `pt_BR`) |
+| `LANGUAGE_CHARSET` | Encoding the file is saved in (`ISO-8859-1`, `windows-1251`, `UTF-8`, ...) |
+| `LANGUAGE_AUTHOR` | Your name and contact |
+| `LANGUAGE_WINDOWSID` | Windows locale name used by WinHTTrack (`German (Standard)`) |
+
+Save the file in exactly its declared `LANGUAGE_CHARSET`; an editor that rewrites it as UTF-8 will corrupt the non-ASCII bytes.
+
+## Adding or updating a language
+
+1. Copy `English.txt` to `<Language>.txt`, or edit the existing file.
+2. Translate each second line; leave the English keys untouched.
+3. Fill in the `LANGUAGE_*` header for a new file.
+4. Open a pull request, or attach the file to a GitHub issue.
+
+When new strings land in `English.txt` they show up untranslated (as English) until a translator fills them in.

libtest/Makefile.am

@@ -1,6 +1,8 @@
 
 exemplesdir = $(datadir)/httrack/libtest
-exemples_DATA = *.c *.h *.txt
+# Glob against $(srcdir), not the build dir: a bare "*.c" is resolved relative to
+# the build dir and stays unexpanded (breaking "make") in an out-of-tree build.
+exemples_DATA = $(srcdir)/*.c $(srcdir)/*.h $(srcdir)/*.txt
 EXTRA_DIST = $(exemples_DATA) libtest.mak libtest.vcproj
 
 AM_CPPFLAGS = \
@@ -12,15 +14,18 @@ AM_CPPFLAGS = \
 	-DSYSCONFDIR=\""$(sysconfdir)"\" \
 	-DDATADIR=\""$(datadir)"\" \
 	-DLIBDIR=\""$(libdir)"\"
-AM_CPPFLAGS += -I../src
+# Use $(top_srcdir)/src, not ../src: the latter is relative to the build dir and
+# misses the source headers (e.g. httrack-library.h) in an out-of-tree build.
+AM_CPPFLAGS += -I$(top_srcdir)/src
 
 # The callback examples reference libc only through libhttrack, so the direct
 # libc edge gets dropped from DT_NEEDED (library-not-linked-against-libc).
-# Force libc to be recorded as a dependency.
+# Force libc back; configure gates the flag since only a GNU-style linker
+# accepts it (LIBC_FORCE_LINK is empty on e.g. macOS).
 AM_LDFLAGS = \
 	@DEFAULT_LDFLAGS@ \
 	-L../src \
-	-Wl,--push-state,--no-as-needed,-lc,--pop-state
+	@LIBC_FORCE_LINK@
 
 # Examples
 libbaselinks_la_SOURCES =  callbacks-example-baselinks.c

libtest/Makefile.in

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m4/ax_add_fortify_source.m4

@@ -0,0 +1,119 @@
+# ===========================================================================
+#  https://www.gnu.org/software/autoconf-archive/ax_add_fortify_source.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_ADD_FORTIFY_SOURCE
+#
+# DESCRIPTION
+#
+#   Check whether -D_FORTIFY_SOURCE=2 can be added to CPPFLAGS without macro
+#   redefinition warnings, other cpp warnings or linker. Some distributions
+#   (such as Ubuntu or Gentoo Linux) enable _FORTIFY_SOURCE globally in
+#   their compilers, leading to unnecessary warnings in the form of
+#
+#     <command-line>:0:0: error: "_FORTIFY_SOURCE" redefined [-Werror]
+#     <built-in>: note: this is the location of the previous definition
+#
+#   which is a problem if -Werror is enabled. This macro checks whether
+#   _FORTIFY_SOURCE is already defined, and if not, adds -D_FORTIFY_SOURCE=2
+#   to CPPFLAGS.
+#
+#   Newer mingw-w64 msys2 package comes with a bug in
+#   headers-git-7.0.0.5546.d200317d-1. It broke -D_FORTIFY_SOURCE support,
+#   and would need -lssp or -fstack-protector.  See
+#   https://github.com/msys2/MINGW-packages/issues/5803. Try to actually
+#   link it.
+#
+# LICENSE
+#
+#   Copyright (c) 2017 David Seifert <soap@gentoo.org>
+#   Copyright (c) 2019, 2023 Reini Urban <rurban@cpan.org>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved.  This file is offered as-is, without any
+#   warranty.
+
+#serial 10
+
+AC_DEFUN([AX_ADD_FORTIFY_SOURCE],[
+    ac_save_cflags=$CFLAGS
+    ac_cwerror_flag=yes
+    AX_CHECK_COMPILE_FLAG([-Werror],[CFLAGS="$CFLAGS -Werror"])
+    ax_add_fortify_3_failed=
+    AC_MSG_CHECKING([whether to add -D_FORTIFY_SOURCE=3 to CPPFLAGS])
+    AC_LINK_IFELSE([
+        AC_LANG_PROGRAM([],
+            [[
+                #ifndef _FORTIFY_SOURCE
+                    return 0;
+                #else
+                    _FORTIFY_SOURCE_already_defined;
+                #endif
+            ]]
+        )],
+        AC_LINK_IFELSE([
+            AC_LANG_SOURCE([[
+                #define _FORTIFY_SOURCE 3
+                #include <string.h>
+                int main(void) {
+                    char *s = " ";
+                    strcpy(s, "x");
+                    return strlen(s)-1;
+                }
+              ]]
+            )],
+            [
+              AC_MSG_RESULT([yes])
+              CFLAGS=$ac_save_cflags
+              CPPFLAGS="$CPPFLAGS -D_FORTIFY_SOURCE=3"
+            ], [
+              AC_MSG_RESULT([no])
+              ax_add_fortify_3_failed=1
+            ],
+        ),
+        [
+          AC_MSG_RESULT([no])
+          ax_add_fortify_3_failed=1
+        ])
+    if test -n "$ax_add_fortify_3_failed"
+    then
+    AC_MSG_CHECKING([whether to add -D_FORTIFY_SOURCE=2 to CPPFLAGS])
+    AC_LINK_IFELSE([
+        AC_LANG_PROGRAM([],
+            [[
+                #ifndef _FORTIFY_SOURCE
+                    return 0;
+                #else
+                    _FORTIFY_SOURCE_already_defined;
+                #endif
+            ]]
+        )],
+        AC_LINK_IFELSE([
+            AC_LANG_SOURCE([[
+                #define _FORTIFY_SOURCE 2
+                #include <string.h>
+                int main(void) {
+                    char *s = " ";
+                    strcpy(s, "x");
+                    return strlen(s)-1;
+                }
+              ]]
+            )],
+            [
+              AC_MSG_RESULT([yes])
+              CFLAGS=$ac_save_cflags
+              CPPFLAGS="$CPPFLAGS -D_FORTIFY_SOURCE=2"
+            ], [
+              AC_MSG_RESULT([no])
+              CFLAGS=$ac_save_cflags
+            ],
+        ),
+        [
+          AC_MSG_RESULT([no])
+          CFLAGS=$ac_save_cflags
+        ])
+    fi
+])

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-.PHONY: regen-man-html
-
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-.NOEXPORT:

man/httrack.1

@@ -3,7 +3,7 @@
 .\"
 .\" This file is generated by man/makeman.sh; do not edit by hand.
 .\" SPDX-License-Identifier: GPL-3.0-or-later
-.TH httrack 1 "13 June 2026" "httrack website copier"
+.TH httrack 1 "07 July 2026" "httrack website copier"
 .SH NAME
 httrack \- offline browser : copy websites to a local directory
 .SH SYNOPSIS
@@ -24,6 +24,7 @@ httrack \- offline browser : copy websites to a local directory
 [ \fB\-EN, \-\-max\-time[=N]\fR ]
 [ \fB\-AN, \-\-max\-rate[=N]\fR ]
 [ \fB\-%cN, \-\-connection\-per\-second[=N]\fR ]
+[ \fB\-%G, \-\-pause\fR ]
 [ \fB\-GN, \-\-max\-pause[=N]\fR ]
 [ \fB\-cN, \-\-sockets[=N]\fR ]
 [ \fB\-TN, \-\-timeout[=N]\fR ]
@@ -43,11 +44,14 @@ httrack \- offline browser : copy websites to a local directory
 [ \fB\-x, \-\-replace\-external\fR ]
 [ \fB\-%x, \-\-disable\-passwords\fR ]
 [ \fB\-%q, \-\-include\-query\-string\fR ]
+[ \fB\-%g, \-\-strip\-query\fR ]
 [ \fB\-o, \-\-generate\-errors\fR ]
 [ \fB\-X, \-\-purge\-old[=N]\fR ]
 [ \fB\-%p, \-\-preserve\fR ]
 [ \fB\-%T, \-\-utf8\-conversion\fR ]
 [ \fB\-bN, \-\-cookies[=N]\fR ]
+[ \fB\-%K, \-\-cookies\-file\fR ]
+[ \fB\-%Y, \-\-why\fR ]
 [ \fB\-u, \-\-check\-type[=N]\fR ]
 [ \fB\-j, \-\-parse\-java[=N]\fR ]
 [ \fB\-sN, \-\-robots[=N]\fR ]
@@ -153,6 +157,8 @@ maximum mirror time in seconds (60=1 minute, 3600=1 hour) (\-\-max\-time[=N])
 maximum transfer rate in bytes/seconds (1000=1KB/s max) (\-\-max\-rate[=N])
 .IP \-%cN
 maximum number of connections/seconds (*%c10) (\-\-connection\-per\-second[=N])
+.IP \-%G
+random pause of MIN[:MAX] seconds between files (e.g. %G5:10) (\-\-pause <param>)
 .IP \-GN
 pause transfer if N bytes reached, and wait until lock file is deleted (\-\-max\-pause[=N])
 .SS Flow control:
@@ -198,6 +204,8 @@ replace external html links by error pages (\-\-replace\-external)
 do not include any password for external password protected websites (%x0 include) (\-\-disable\-passwords)
 .IP \-%q
 *include query string for local files (useless, for information purpose only) (%q0 don't include) (\-\-include\-query\-string)
+.IP \-%g
+strip query keys for dedup ([host/pattern=]key1,key2,...) (\-\-strip\-query <param>)
 .IP \-o
 *generate output html file in case of error (404..) (o0 don't generate) (\-\-generate\-errors)
 .IP \-X
@@ -209,6 +217,10 @@ links conversion to UTF\-8 (\-\-utf8\-conversion)
 .SS Spider options:
 .IP \-bN
 accept cookies in cookies.txt (0=do not accept,* 1=accept) (\-\-cookies[=N])
+.IP \-%K
+load extra cookies from a Netscape cookies.txt (\-\-cookies\-file <param>)
+.IP \-%Y
+explain which filter rule accepts or rejects a URL, then exit (\-\-why <param>)
 .IP \-u
 check document type if unknown (cgi,asp..) (u0 don't check, * u1 check but /, u2 check always) (\-\-check\-type[=N])
 .IP \-j
@@ -225,6 +237,8 @@ tolerant requests (accept bogus responses on some servers, but not standard!) (\
 update hacks: various hacks to limit re\-transfers when updating (identical size, bogus response..) (\-\-updatehack)
 .IP \-%u
 url hacks: various hacks to limit duplicate URLs (strip //, www.foo.com==foo.com..) (\-\-urlhack)
+.br
+opt out of one url\-hack part: \-\-keep\-www\-prefix (www.foo.com<>foo.com), \-\-keep\-double\-slashes (//), \-\-keep\-query\-order (?b&a)
 .IP \-%A
 assume that a type (cgi,asp..) is always linked with a mime type (\-%A php3,cgi=text/html;dat,bin=application/x\-zip) (\-\-assume <param>)
 .br
@@ -313,12 +327,8 @@ debug HTTP headers in logfile (\-\-debug\-headers)
 .SS Guru options: (do NOT use if possible)
 .IP \-#X
 *use optimized engine (limited memory boundary checks) (\-\-fast\-engine)
-.IP \-#0
-filter test (\-#0 '*.gif' 'www.bar.com/foo.gif') (\-\-debug\-testfilters <param>)
-.IP \-#1
-simplify test (\-#1 ./foo/bar/../foobar)
-.IP \-#2
-type test (\-#2 /foo/bar.php)
+.IP \-#test
+list engine self\-tests (run one with \-#test=NAME [args])
 .IP \-#C
 cache list (\-#C '*.com/spider*.gif' (\-\-debug\-cache <param>)
 .IP \-#R

missing

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-      echo "<$gnu_software_URL/texinfo/>"
-      echo "The spurious makeinfo call might also be the consequence of"
-      echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might"
-      echo "want to install GNU make:"
-      echo "<$gnu_software_URL/make/>"
-      ;;
-    *)
-      echo "You might have modified some files without having the proper"
-      echo "tools for further handling them.  Check the 'README' file, it"
-      echo "often tells you about the needed prerequisites for installing"
-      echo "this package.  You may also peek at any GNU archive site, in"
-      echo "case some other package contains this missing '$1' program."
-      ;;
-  esac
-}
-
-give_advice "$1" | sed -e '1s/^/WARNING: /' \
-                       -e '2,$s/^/         /' >&2
-
-# Propagate the correct exit status (expected to be 127 for a program
-# not found, 63 for a program that failed due to version mismatch).
-exit $st
-
-# Local variables:
-# eval: (add-hook 'before-save-hook 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC0"
-# time-stamp-end: "; # UTC"
-# End:

src/Makefile.am

@@ -56,21 +56,21 @@ whttrackrundir = $(bindir)
 whttrackrun_SCRIPTS = webhttrack
 
 libhttrack_la_SOURCES =  htscore.c htsparse.c htsback.c htscache.c \
-	htscache_selftest.c \
+	htscache_selftest.c htsdns_selftest.c htsselftest.c \
 	htscatchurl.c htsfilters.c htsftp.c htshash.c coucal/coucal.c \
 	htshelp.c htslib.c htscoremain.c \
 	htsname.c htsrobots.c htstools.c htswizard.c \
 	htsalias.c htsthread.c htsindex.c htsbauth.c \
 	htsmd5.c htszlib.c htswrap.c htsconcat.c \
-	htsmodules.c htscharset.c punycode.c htsencoding.c \
+	htsmodules.c htscharset.c punycode.c htsencoding.c htssniff.c \
 	md5.c \
 	minizip/ioapi.c minizip/mztools.c minizip/unzip.c minizip/zip.c \
 	hts-indextmpl.h htsalias.h htsback.h htsbase.h htssafe.h \
-	htsbasenet.h htsbauth.h htscache.h htscache_selftest.h htscatchurl.h  \
+	htsbasenet.h htsbauth.h htscache.h htscache_selftest.h htsdns_selftest.h htsselftest.h htscatchurl.h  \
 	htsconfig.h htscore.h htsparse.h htscoremain.h htsdefines.h  \
 	htsfilters.h htsftp.h htsglobal.h htshash.h coucal/coucal.h \
 	htshelp.h htsindex.h htslib.h htsmd5.h \
-	htsmodules.h htsname.h htsnet.h \
+	htsmodules.h htsname.h htsnet.h htssniff.h \
 	htsopt.h htsrobots.h htsthread.h  \
 	htstools.h htswizard.h htswrap.h htszlib.h  \
 	htsstrings.h htsarrays.h httrack-library.h \
@@ -86,8 +86,9 @@ libhtsjava_la_SOURCES = htsjava.c htsjava.h
 libhtsjava_la_LIBADD = $(THREADS_LIBS) $(DL_LIBS) libhttrack.la
 # This thin JNI wrapper reaches libc only through libhttrack, so the direct
 # libc edge is dropped from DT_NEEDED (library-not-linked-against-libc). Force
-# libc to be recorded as a dependency.
-libhtsjava_la_LDFLAGS = $(AM_LDFLAGS) -version-info $(VERSION_INFO) -Wl,--push-state,--no-as-needed,-lc,--pop-state
+# libc back as a dependency; configure gates the flag since only a GNU-style
+# linker accepts it (LIBC_FORCE_LINK is empty on e.g. macOS).
+libhtsjava_la_LDFLAGS = $(AM_LDFLAGS) -version-info $(VERSION_INFO) $(LIBC_FORCE_LINK)
 
 EXTRA_DIST = httrack.h webhttrack \
 		coucal/murmurhash3.h.diff \
@@ -113,5 +114,12 @@ EXTRA_DIST = httrack.h webhttrack \
 		proxy/proxytrack.h \
 		proxy/store.h \
 		proxy/proxytrack.vcproj \
-		coucal/* \
-		*.dsw *.dsp *.vcproj
+		coucal/LICENSE \
+		coucal/Makefile \
+		coucal/README.md \
+		coucal/sample.c \
+		coucal/tests.c \
+		htsjava.vcproj \
+		httrack.dsp httrack.dsw httrack.vcproj \
+		libhttrack.dsp libhttrack.dsw libhttrack.vcproj \
+		webhttrack.dsp webhttrack.dsw webhttrack.vcproj

src/hts-indextmpl.h

@@ -18,11 +18,9 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program. If not, see <http://www.gnu.org/licenses/>.
 
-Important notes:
-
-- We hereby ask people using this source NOT to use it in purpose of grabbing
-emails addresses, or collecting any other private information on persons.
-This would disgrace our work, and spoil the many hours we spent on it.
+Ethical use: we kindly ask that you NOT use this software to harvest email
+addresses or to collect any other private information about people. Doing so
+would dishonor our work and waste the many hours we have spent on it.
 
 Please visit our Website: http://www.httrack.com
 */

src/htsalias.c

@@ -18,11 +18,9 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program. If not, see <http://www.gnu.org/licenses/>.
 
-Important notes:
-
-- We hereby ask people using this source NOT to use it in purpose of grabbing
-emails addresses, or collecting any other private information on persons.
-This would disgrace our work, and spoil the many hours we spent on it.
+Ethical use: we kindly ask that you NOT use this software to harvest email
+addresses or to collect any other private information about people. Doing so
+would dishonor our work and waste the many hours we have spent on it.
 
 Please visit our Website: http://www.httrack.com
 */
@@ -43,20 +41,6 @@ Please visit our Website: http://www.httrack.com
 
 #define _NOT_NULL(a) ( (a!=NULL) ? (a) : "" )
 
-// COPY OF cmdl_ins in htsmain.c
-// Insert a command in the argc/argv
-#define cmdl_ins(token,argc,argv,buff,ptr) \
-  { \
-  int i; \
-  for(i=argc;i>0;i--)\
-  argv[i]=argv[i-1];\
-  } \
-  argv[0]=(buff+ptr); \
-  strcpybuff(argv[0],token); \
-  ptr += (int) (strlen(argv[0])+1); \
-  argc++
-// END OF COPY OF cmdl_ins in htsmain.c
-
 /*
   Aliases for command-line and config file definitions
   These definitions can be used:
@@ -76,6 +60,9 @@ Please visit our Website: http://www.httrack.com
   param1 : this option must be alone, and needs one distinct parameter (-P <path>)
   param0 : this option must be alone, but the parameter should be put together (+*.gif)
 */
+/* clang-format off: hand-aligned table; clang-format reflows the whole
+   initializer (2->4 space) on any edit, churning every untouched row. */
+/* clang-format off */
 const char *hts_optalias[][4] = {
   /*   {"","","",""}, */
   {"path", "-O", "param1", "output path"},
@@ -123,6 +110,14 @@ const char *hts_optalias[][4] = {
   {"disable-passwords", "-%x", "single", ""}, {"disable-password", "-%x",
                                                "single", ""},
   {"include-query-string", "-%q", "single", ""},
+  {"strip-query", "-%g", "param1",
+   "strip [host/pattern=]key1,key2,... from URLs"},
+  {"cookies-file", "-%K", "param1",
+   "load extra cookies from a Netscape cookies.txt"},
+  {"why", "-%Y", "param1",
+   "explain which filter rule accepts or rejects a URL, then exit"},
+  {"pause", "-%G", "param1",
+   "random pause of MIN[:MAX] seconds between files"},
   {"generate-errors", "-o", "single", ""},
   {"do-not-generate-errors", "-o0", "single", ""},
   {"purge-old", "-X", "param", ""},
@@ -139,6 +134,9 @@ const char *hts_optalias[][4] = {
   {"tolerant", "-%B", "single", ""},
   {"updatehack", "-%s", "single", ""}, {"sizehack", "-%s", "single", ""},
   {"urlhack", "-%u", "single", ""},
+  {"keep-www-prefix", "-%j", "single", ""},
+  {"keep-double-slashes", "-%o", "single", ""},
+  {"keep-query-order", "-%y", "single", ""},
   {"user-agent", "-F", "param1", "user-agent identity"},
   {"referer", "-%R", "param1", "default referer URL"},
   {"from", "-%E", "param1", "from email address"},
@@ -257,6 +255,7 @@ const char *hts_optalias[][4] = {
 
   {"", "", "", ""}
 };
+/* clang-format on */
 
 /* 
   Check for alias in command-line 
@@ -286,7 +285,6 @@ int optalias_check(int argc, const char *const *argv, int n_arg,
       char *position;
       int need_param = 1;
 
-      //int return_param=0;
       int pos;
 
       command[0] = param[0] = addcommand[0] = '\0';
@@ -364,7 +362,6 @@ int optalias_check(int argc, const char *const *argv, int n_arg,
               strlcatbuff(return_argv[0], "0", return_argv_size);
             else if (strcmp(param, "on") == 0) {
               // on is the default
-              // strcatbuff(return_argv[0],"1");
             } else
               strlcatbuff(return_argv[0], param, return_argv_size);
           }
@@ -470,7 +467,7 @@ const char *optalias_help(const char *token) {
 */
 /* Note: NOT utf-8 */
 int optinclude_file(const char *name, int *argc, char **argv, char *x_argvblk,
-                    int *x_ptr) {
+                    size_t x_argvblk_size, int *x_ptr) {
   FILE *fp;
 
   fp = fopen(name, "rb");
@@ -544,14 +541,15 @@ int optinclude_file(const char *name, int *argc, char **argv, char *x_argvblk,
               /* temporary argc: Number of parameters after minus insert_after_argc */
               insert_after_argc = (*argc) - insert_after;
               cmdl_ins((tmp_argv[2]), insert_after_argc, (argv + insert_after),
-                       x_argvblk, (*x_ptr));
+                       x_argvblk, x_argvblk_size, (*x_ptr));
               *argc = insert_after_argc + insert_after;
               insert_after++;
               /* Second one */
               if (return_argc > 1) {
                 insert_after_argc = (*argc) - insert_after;
                 cmdl_ins((tmp_argv[3]), insert_after_argc,
-                         (argv + insert_after), x_argvblk, (*x_ptr));
+                         (argv + insert_after), x_argvblk, x_argvblk_size,
+                         (*x_ptr));
                 *argc = insert_after_argc + insert_after;
                 insert_after++;
               }