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64 lines
2.4 KiB
Bash
Executable File
64 lines
2.4 KiB
Bash
Executable File
#! /bin/sh
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# Grep 2.21 would report "grep: internal PCRE error: -27"
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#
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# Copyright 2015-2026 Free Software Foundation, Inc.
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#
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# Copying and distribution of this file, with or without modification,
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# are permitted in any medium without royalty provided the copyright
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# notice and this notice are preserved.
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. "${srcdir=.}/init.sh"; path_prepend_ ../src
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require_pcre_
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for p in 'base64 -d' 'base64 -D' 'openssl base64 -d' \
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"perl -MMIME::Base64 -0777ne 'print decode_base64(\$_)'" FAIL; do
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test "$p" = FAIL && skip_ "your system lacks a base64 decoder"
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x=$(echo eA==| ( eval "$p" ) 2>/dev/null) && test "X$x" = Xx &&
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{
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eval "b64_decode() { $p; }"
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break
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}
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done
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foo=$( (echo foo | gzip | gzip -d) 2>/dev/null) && test "X$foo" = Xfoo \
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|| skip_ "your system lacks the gzip program"
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fail=0
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b64_decode >pcrejit.txt.gz <<'EOF' || framework_failure_
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H4sIAAAAAAACA+2bUU4DMQxE/7mMz5T7XwKE+IBKVLue58yk0B9EtX6xJxN7t4VaH69a6+tHrW+/
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r4e3n75KARWShSOFTtiumE3FPVyo79ATIJ0Ry0No/yXe99UIUqTGKKUzYHFJHJoaCONQDCnDSCDS
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IPAvGCVeXNsZ7lpbWFfdaZtgPos5LeK2C1TBKzD09V3HFlCOsbFT/hNbz4HzJaRjnjdam9FXw/o6
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VyPozhMmiaRYAMeNSJR1iMjBEFLMtsH7lptartfxkzPQgFVofwRlxKsMYn2KNDnU9fsOQCkRIYVT
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G80ZRqBpSQjRYPX7s9gvtqknyNE2f8V09sxHM7YPmMMJgrmVna2AT717n5fUAIDkiBCqFgWUUgKD
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8jOc0Rgj5JS6vZnQI14wkaTDAkD266p/iVHs8gjCrMFARVM0iEVgFAa9YRAQT4tkgsmloTJLmyCm
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uSHRnTkzIdZMmZ5kYX/iJFtTwu9cFvr3aDWcUx4pUW/cVQwPoQSlwguNd4M0vTpAauKodmLFXv1P
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dkcKkYUglER2Q4L4gnmOiNGzSBATwGQgwihs5/QffIhyfg4hJvM2r4Rp6L+1ibCCd4jYZ6jCiBlc
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2+y4fl4yTGIwcWXNAUEeXmu8iCMV96DNTnmRNICDk2N5qaXGbsF91OX/0hlcYTjrMfy02p9Xv70D
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mv3RZCFOAAA=
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EOF
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gzip -d pcrejit.txt || framework_failure_
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LC_ALL=C grep -P -n '^([/](?!/)|[^/])*~/.*' pcrejit.txt
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if test $? != 1; then
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# The above often makes grep attempt to use an inordinate amount
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# of stack space. If grep fails with $? != 1, try again, but this
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# time with no soft limit:
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# Use ulimit to remove that limit, if possible.
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# If ulimit is not usable, just skip this test.
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(ulimit -s unlimited) || skip_ this shell lacks ulimit support
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# Rerun that same test, but now with no limit on stack size:
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(ulimit -s unlimited;
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returns_ 1 env LC_ALL=C grep -P -n '^([/](?!/)|[^/])*~/.*' pcrejit.txt 2> err) \
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|| fail=1
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# If that failed due to stack overflow, don't cry foul.
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overflow_pat="stack overflow|exceeded PCRE's recursion limit"
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test $fail = 1 && { grep -Eq "$overflow_pat" err && fail=0 || cat err; }
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fi
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Exit $fail
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