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Last change
on this file since 2595 was 2595, checked in by bird, 12 years ago |
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gnu grep version 2.12 (grep-2.12.tar.xz, md5sum=8d2f0346d08b13c18afb81f0e8aa1e2f)
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File size:
1.2 KB
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| 1 | #!/bin/sh
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| 2 | # Demonstrate the disk-filling infloop when redirecting to an input file.
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| 3 | . "${srcdir=.}/init.sh"; path_prepend_ ../src
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| 4 | require_timeout_
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| 5 |
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| 6 | # Use an input file large enough that the problem is reproducible in spite
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| 7 | # of buffering effects. Just larger than 256KB should be adequate.
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| 8 | v=$(printf %063d 0)'
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| 9 | '
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| 10 | # 64 * 2^12 = 256k
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| 11 | for i in 1 2 3 4 5 6 7 8 9 10 11 12; do
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| 12 | v="$v$v"
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| 13 | done
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| 14 |
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| 15 | echo "$v" > out || framework_failure_
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| 16 |
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| 17 | for arg in out - ''; do
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| 18 | # Accommodate both 'out' and '(standard input)', as well as
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| 19 | # the multi-byte quoting we see on OS/X-based systems.
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| 20 | echo grep: input file ... is also the output > err.exp || framework_failure_
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| 21 |
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| 22 | # Require an exit status of 2.
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| 23 | # grep-2.8 and earlier would infloop with $arg = out.
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| 24 | # grep-2.10 and earlier would infloop with $arg = - or $arg = ''.
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| 25 | timeout 10 grep 0 $arg < out >> out 2> err; st=$?; test $st = 2 || fail=1
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| 26 | sed 's/file .* is/file ... is/' err > k && mv k err
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| 27 | compare err.exp err || fail=1
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| 28 |
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| 29 | # But with each of the following options it must not exit-2.
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| 30 | for i in -q -m1 -l -L; do
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| 31 | timeout 10 grep $i 0 $arg < out >> out 2> err; st=$?
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| 32 | test $st = 2 && fail=1
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| 33 | done
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| 34 |
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| 35 | timeout 10 grep -2 0 $arg < out >> out 2> err; st=$?
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| 36 | test $st = 2 || fail=1
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| 37 | done
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| 38 |
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| 39 | Exit $fail
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