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uniq: don't continue field processing after end of line

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* NEWS (Bug fixes): Mention it.
* src/uniq.c (find_field): Stop processing loop when end of line
is reached.  Before this fix, 'uniq -f 10000000000 /etc/passwd'
would run for a very long time.
This commit is contained in:
Sami Kerola 2011-01-17 00:27:06 +01:00 committed by Jim Meyering
parent 442b068ac1
commit aa9f02bc30
2 changed files with 3 additions and 1 deletions
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2
NEWS
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@ -13,6 +13,8 @@ GNU coreutils NEWS -*- outline -*-
rm -f no longer fails for EINVAL or EILSEQ on file systems that
reject file names invalid for that file system.
uniq -f NUM no longer tries to process fields after end of line.
* Noteworthy changes in release 8.9 (2011-01-04) [stable]

2
src/uniq.c
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@ -214,7 +214,7 @@ find_field (struct linebuffer const *line)
size_t size = line->length - 1;
size_t i = 0;
for (count = 0; count < skip_fields; count++)
for (count = 0; count < skip_fields && i < size; count++)
{
while (i < size && isblank (to_uchar (lp[i])))
i++;