diff options
| -rw-r--r-- | src/m_misc.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/m_misc.c b/src/m_misc.c index 9d3144b2..ed41b5f1 100644 --- a/src/m_misc.c +++ b/src/m_misc.c @@ -263,12 +263,20 @@ void M_ForceUppercase(char *text) char *M_StrCaseStr(char *haystack, char *needle) { + unsigned int haystack_len; unsigned int needle_len; unsigned int len; unsigned int i; + haystack_len = strlen(haystack); needle_len = strlen(needle); - len = strlen(haystack) - needle_len; + + if (haystack_len < needle_len) + { + return NULL; + } + + len = haystack_len - needle_len; for (i = 0; i <= len; ++i) { |