#!/bin/bash
# A corrupt proxytrack .ndx must not overflow the fixed cache-read buffers. The
# sanitizer CI build turns any regression here into a hard stack/heap overflow.

set -euo pipefail

dir=$(mktemp -d)
trap 'rm -rf "$dir"' EXIT

# The first length-prefixed field declares far more than firstline[256] holds;
# cache_brstr must clamp the copy to the destination, not the declared length.
{
    printf '4000\n'
    head -c 4000 /dev/zero | tr '\0' 'A'
} >"$dir/foo.ndx"
: >"$dir/foo.dat" # cache_brstr runs only when the sibling .dat opens

proxytrack --convert "$dir/out.arc" "$dir/foo.ndx" >/dev/null 2>&1 || {
    echo "FAIL: proxytrack crashed/errored on a corrupt cache index"
    exit 1
}