diff options
| -rw-r--r-- | parsing.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/parsing.c b/parsing.c index 602e3de..1b2a551 100644 --- a/parsing.c +++ b/parsing.c @@ -56,6 +56,8 @@ char *substr(const char *head, const char *tail) { char *buf; + if (tail < head) + return xstrdup(""); buf = xmalloc(tail - head + 1); strncpy(buf, head, tail - head); buf[tail - head] = '\0'; |