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Fix crash on compiling a regular expression with more than 32k colors.

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Throw an error instead.

Backpatch to all supported branches.
This commit is contained in:
Heikki Linnakangas
2013-04-04 19:04:57 +03:00
parent d7d5832012
commit bf2b0a1478
4 changed files with 14 additions and 0 deletions
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8
src/backend/regex/regc_color.c
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@ -247,7 +247,15 @@ newcolor(struct colormap * cm)
/* oops, must allocate more */
struct colordesc *newCd;
if (cm->max == MAX_COLOR)
{
CERR(REG_ECOLORS);
return COLORLESS; /* too many colors */
}
n = cm->ncds * 2;
if (n > MAX_COLOR + 1)
n = MAX_COLOR + 1;
if (cm->cd == cm->cdspace)
{
newCd = (struct colordesc *) MALLOC(n * sizeof(struct colordesc));