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Ensure that memcmp() does not run off the end of memory, per Kurt Roeckx.

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(Same patch committed to HEAD but I fat-fingered the commit message...)
This commit is contained in:
Tom Lane
2004-02-03 17:56:04 +00:00
parent 932001350b
commit 2194ed88de
1 changed files with 3 additions and 2 deletions
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5
src/backend/utils/adt/regexp.c
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@@ -8,7 +8,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/regexp.c,v 1.49 2003/08/08 21:42:07 momjian Exp $ * $Header: /cvsroot/pgsql/src/backend/utils/adt/regexp.c,v 1.49.4.1 2004/02/03 17:56:04 tgl Exp $
* *
* Alistair Crooks added the code for the regex caching * Alistair Crooks added the code for the regex caching
* agc - cached the regular expressions used - there's a good chance * agc - cached the regular expressions used - there's a good chance
@@ -118,7 +118,8 @@ RE_compile_and_execute(text *text_re, unsigned char *dat, int dat_len,
*/ */
for (i = 0; i < num_res; i++) for (i = 0; i < num_res; i++)
{ {
if (memcmp(re_array[i].cre_pat, text_re, text_re_len) == 0 && if (VARSIZE(re_array[i].cre_pat) == text_re_len &&
memcmp(re_array[i].cre_pat, text_re, text_re_len) == 0 &&
re_array[i].cre_flags == cflags) re_array[i].cre_flags == cflags)
{ {
/* /*