Merge pull request #57 from bitonic/utf8ncmp-safe

exit in `utf8ncmp` if over limit before reading
sheredom · Jan 20, 2019 · 2a7c5bf · 2a7c5bf
2 parents 3f44e9e + 634096a
commit 2a7c5bf
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/utf8.h b/utf8.h
@@ -559,7 +559,7 @@ int utf8ncmp(const void *src1, const void *src2, size_t n) {
   const unsigned char *s1 = (const unsigned char *)src1;
   const unsigned char *s2 = (const unsigned char *)src2;
 
-  while ((('\0' != *s1) || ('\0' != *s2)) && (0 != n--)) {
+  while ((0 != n--) && (('\0' != *s1) || ('\0' != *s2))) {
     if (*s1 < *s2) {
       return -1;
     } else if (*s1 > *s2) {