X-Git-Url: https://gitweb.ps.run/ps-cgit/blobdiff_plain/a0bf375a1a9b74056a913f3687c6f5b42ad4acf6..521e10c884055c800078e6dada97ccf6c5193aad:/parsing.c

diff --git a/parsing.c b/parsing.c
index 151c0fe..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';
@@ -125,7 +127,7 @@ const char *reencode(char **txt, const char *src_enc, const char *dst_enc)
 struct commitinfo *cgit_parse_commit(struct commit *commit)
 {
 	struct commitinfo *ret;
-	char *p = commit->buffer, *t = commit->buffer;
+	char *p = commit->buffer, *t;
 
 	ret = xmalloc(sizeof(*ret));
 	ret->commit = commit;