Small correction in reading of commit headers

Check if a line of the header has enough characters to possibly contain the requested prefix. Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
git-mirror · May 6, 2007 · e102d43 · e102d43
1 parent cf593cc
commit e102d43
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/commit.c b/commit.c
@@ -640,7 +640,9 @@ static char *get_header(const struct commit *commit, const char *key)
 			next = NULL;
 		} else
 			next = eol + 1;
-		if (!strncmp(line, key, key_len) && line[key_len] == ' ') {
+		if (eol - line > key_len &&
+		    !strncmp(line, key, key_len) &&
+		    line[key_len] == ' ') {
 			int len = eol - line - key_len;
 			char *ret = xmalloc(len);
 			memcpy(ret, line + key_len + 1, len - 1);