mirror of
https://https.git.savannah.gnu.org/git/sed.git
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79 lines
3.1 KiB
Bash
Executable File
79 lines
3.1 KiB
Bash
Executable File
#!/bin/sh
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# sed would access uninitialized memory for certain regexes.
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# Before sed 4.6 these would result in "Conditional jump or move depends on
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# uninitialised value(s)" and "Invalid read of size 1"
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# by valgrind from regexp.c:286
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# Copyright (C) 2018-2026 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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. "${srcdir=.}/testsuite/init.sh"; path_prepend_ ./sed
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print_ver_ sed
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require_valgrind_
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# 40 characters ensures valgrind detects the bug
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# (with less than 25 - it does not).
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z=0000000000000000000000000000000000000000
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printf '%s\n' $z $z > in || framework_failure_
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printf '%s\n' $z $z > exp || framework_failure_
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# Before sed-4.6, this would fail with:
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# [...]
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# ==13131== Conditional jump or move depends on uninitialised value(s)
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# ==13131== at 0x4C3002B: memchr (vg_replace_strmem.c:883)
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# ==13131== by 0x1120BD: match_regex (regexp.c:286)
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# ==13131== by 0x110736: do_subst (execute.c:1101)
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# ==13131== by 0x1115D3: execute_program (execute.c:1591)
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# ==13131== by 0x111A4C: process_files (execute.c:1774)
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# ==13131== by 0x112E1C: main (sed.c:405)
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# ==13131==
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# ==13131== Invalid read of size 1
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# ==13131== at 0x4C30027: memchr (vg_replace_strmem.c:883)
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# ==13131== by 0x1120BD: match_regex (regexp.c:286)
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# ==13131== by 0x110736: do_subst (execute.c:1101)
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# ==13131== by 0x1115D3: execute_program (execute.c:1591)
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# ==13131== by 0x111A4C: process_files (execute.c:1774)
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# ==13131== by 0x112E1C: main (sed.c:405)
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# ==13131== Address 0x55ec765 is 0 bytes after a block of size 101 alloc'd
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# ==13131== at 0x4C2DDCF: realloc (vg_replace_malloc.c:785)
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# ==13131== by 0x113BA2: ck_realloc (utils.c:418)
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# ==13131== by 0x10E682: resize_line (execute.c:154)
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# ==13131== by 0x10E6F0: str_append (execute.c:165)
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# ==13131== by 0x110779: do_subst (execute.c:1106)
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# ==13131== by 0x1115D3: execute_program (execute.c:1591)
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# ==13131== by 0x111A4C: process_files (execute.c:1774)
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# ==13131== by 0x112E1C: main (sed.c:405)
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valgrind --quiet --error-exitcode=1 \
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sed -e 'N; s/$//m2' in > out 2> err || fail=1
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# Work around a bug in CentOS 5.10's valgrind
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# FIXME: remove in 2018 or when CentOS 5 is no longer officially supported
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grep 'valgrind: .*Assertion.*failed' err-no-posix > /dev/null \
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&& skip_ 'you seem to have a buggy version of valgrind'
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# Remove any valgrind-added diagnostics from stderr.
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sed -i '/^==/d' err
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compare exp out || fail=1
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compare /dev/null err || fail=1
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echo "valgrind report:"
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echo "=================================="
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cat err
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echo "=================================="
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exit $fail
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