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fix integer underflow in tor_vsnprintf()

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(probably exploitable)


svn:r3011
This commit is contained in:
Roger Dingledine 2004-11-29 06:49:04 +00:00
parent 185f047450
commit 531c060b36
1 changed files with 3 additions and 1 deletions
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4
src/common/compat.c
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@ -90,12 +90,14 @@ int tor_snprintf(char *str, size_t size, const char *format, ...)
return r;
}
/** Replacement for vsnpritnf; behavior differs as tor_snprintf differs from
/** Replacement for vsnprintf; behavior differs as tor_snprintf differs from
* snprintf.
*/
int tor_vsnprintf(char *str, size_t size, const char *format, va_list args)
{
int r;
if (size == 0)
return -1; /* no place for the NUL */
#ifdef MS_WINDOWS
r = _vsnprintf(str, size, format, args);
#else