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https://github.com/wolfcw/libfaketime.git
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8f2c856d8e
Running "make randomtest" should demonstrates the segfault described in https://github.com/wolfcw/libfaketime/issues/295
48 lines
1.4 KiB
Bash
Executable File
48 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
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FTPL="${FAKETIME_TESTLIB:-../src/libfaketime.so.1}"
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set -e
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error=0
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./getrandom_test > run-base
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LD_PRELOAD="$FTPL" ./getrandom_test > run0
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FAKERANDOM_SEED=0x12345678DEADBEEF LD_PRELOAD="$FTPL" ./getrandom_test > run1
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FAKERANDOM_SEED=0x12345678DEADBEEF LD_PRELOAD="$FTPL" ./getrandom_test > run2
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FAKERANDOM_SEED=0x0000000000000000 LD_PRELOAD="$FTPL" ./getrandom_test > run3
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if diff -u run-base run0 > /dev/null; then
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error=1
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printf >&2 'test run without the LD_PRELOAD matches a run without LD_PRELOAD'
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fi
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if diff -u run0 run1 > /dev/null; then
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error=2
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printf >&2 'test run without a seed produced the same data as a run with a seed!\n'
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fi
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if ! diff -u run1 run2; then
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error=3
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printf >&2 'test runs with identical seeds differed!\n'
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fi
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if diff -u run2 run3 >/dev/null; then
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error=4
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printf >&2 'test runs with different seeds produced the same data!\n'
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fi
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rm -f run-base run0 run1 run2 run3
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printf 'testing shared object with getrandom() in library constructor\n'
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LD_LIBRARY_PATH=. ./use_lib_random
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printf 'now with LD_PRELOAD and FAKERANDOM_SEED\n'
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FAKERANDOM_SEED=0x0000000000000000 LD_PRELOAD="$FTPL" LD_LIBRARY_PATH=. ./use_lib_random
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# this demonstrates the crasher from https://github.com/wolfcw/libfaketime/issues/295
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printf 'now with LD_PRELOAD without FAKERANDOM_SEED\n'
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LD_PRELOAD="$FTPL" LD_LIBRARY_PATH=. ./use_lib_random
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if [ 0 = $error ]; then
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printf 'getrandom interception test successful.\n'
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fi
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exit $error
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