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359b8c3ef2
Problem reported by Gisle Vanem <https://bugs.gnu.org/64316>. * src/io.c (find_and_hash_each_line): Rely on xpalloc to check for integer overflow instead of trying to do it ourselves incorrectly, with old code that predated the use of xpalloc. * src/system.h: Verify that LIN_MAX == IDX_MAX, since the code now relies on this. * tests/Makefile.am (TESTS): Add bug-64316. * tests/bug-64316: New file
32 lines
580 B
Bash
Executable File
32 lines
580 B
Bash
Executable File
#!/bin/sh
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# Test for signed integer overflow bug within diff.
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# Bug reported by Gisele Vanem <http://bugs.gnu.org/64316>.
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# Compile with gcc -fsanitize=undefined to test for this bug.
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. "${srcdir=.}/init.sh"; path_prepend_ ../src
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fail=0
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for f in a b; do
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printf 'c\nd\ne\nf\ng\n%s\nh\ni\nj\nk\nl\n' $f >$f || framework_failure_
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done
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cat >exp <<'EOF' || framework_failure_
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@@ -3,7 +3,7 @@
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e
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f
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g
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-a
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+b
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h
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i
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j
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EOF
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returns_ 1 diff -u a b >out 2>err || fail=1
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sed '1,2d' out >out1 || framework_failure_
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compare exp out1 || fail=1
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compare /dev/null err || fail=1
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Exit $fail
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