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Fix implementation of strndup to not overrun

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This commit is contained in:
Philip Kelley 2012-11-09 15:39:10 -05:00
parent 0f674411e9
commit 2364735c8f
1 changed files with 6 additions and 5 deletions
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9
src/util.h
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@ -42,12 +42,11 @@ GIT_INLINE(char *) git__strdup(const char *str)
GIT_INLINE(char *) git__strndup(const char *str, size_t n)
{
size_t length;
size_t length = 0;
char *ptr;
length = strlen(str);
if (n < length)
length = n;
while (length < n && str[length])
++length;
ptr = (char*)malloc(length + 1);
if (!ptr) {
@ -55,7 +54,9 @@ GIT_INLINE(char *) git__strndup(const char *str, size_t n)
return NULL;
}
if (length)
memcpy(ptr, str, length);
ptr[length] = '\0';
return ptr;