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Prevent strzcpy access out-of-bound

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When parameter 'len' is smaller or equal to 0, do not null-terminate.

BUG=chrome-os-partner:11041
TEST=Build success.

Change-Id: Ia5267e7d31e3ade8828ba0bc2d68405b4cd236be
Reviewed-on: https://gerrit.chromium.org/gerrit/26640
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Ready: Vic Yang <victoryang@chromium.org>
Tested-by: Vic Yang <victoryang@chromium.org>
This commit is contained in:
Vic Yang
2012-07-03 10:58:23 +08:00
committed by Gerrit
parent aa64550a3f
commit fda2466816
1 changed files with 2 additions and 0 deletions
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2
common/util.c
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@@ -184,6 +184,8 @@ void *memmove(void *dest, const void *src, int len)
char *strzcpy(char *dest, const char *src, int len)
{
char *d = dest;
if (len <= 0)
return dest;
while (len > 1 && *src) {
*(d++) = *(src++);
len--;