https://bugs.exim.org/show_bug.cgi?id=2177
Bug ID: 2177
Summary: fails in recursive mode for filenames >= 129 chars
Product: PCRE
Version: 10.30 (PCRE2)
Hardware: x86-64
OS: Linux
Status: NEW
Severity: bug
Priority: medium
Component: Code
Assignee: p...@hermes.cam.ac.uk
Reporter: glyphi...@gmail.com
CC: pcre-dev@exim.org
Hello,
The affected software is pcregrep (8.41) and pcre2grep (10.30) on Linux
(Gentoo).
Ran into this issue grepping through text files in a directory hierarchy. Had
been using GNU grep, but it couldn't handle some patterns, so discovered
pcregrep and started using that. But in recursive mode, pcregrep fails for
files w/ long-ish names -- filenames 129 chars long or longer.
Run these commands to reproduce:
--
mkdir test
cd test
echo "filename is 128 chars long" > "128 -
0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567.txt"
echo "filename is 129 chars long" > "129 -
01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678.txt"
pcre2grep chars *
pcre2grep -r chars .
--
The 2nd-to-last command, with no recursion, works fine and prints:
128 -
0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567.txt:filename
is 128 chars long
129 -
01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678.txt:filename
is 129 chars long
However, the last command, with recursion, prints:
pcre2grep: Failed to open ./129 -
01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678.tx:
No such file or directory
./128 -
0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567.txt:filename
is 128 chars long
It chokes on the 129-char filename. Note the error message:
"Failed to open ./129 - 0...8.tx: No such file or directory
It only prints the 1st 128 chars of the filename (ends with ".tx" instead of
".txt"), suggesting it's a buffer issue.
Presumably pcregrep should be able to handle filenames at least up to the
ext2/3/4 length limit of 255 bytes.
Thanks.
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