fix \r\r\n

samtools · Jan 8, 2022 · 8395d89 · 8395d89
1 parent d51295c
commit 8395d89
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/kstring.c b/kstring.c
@@ -312,14 +312,15 @@ int kgetline3(kstring_t *s, kgets_func2 *fgets_fn, void *fp)
 
 int kgetline2(kstring_t *s, kgets_func2 *fgets_fn, void *fp)
 {
+	size_t l0 = s->l;
 	int ret = kgetline3(s, fgets_fn, fp);
 	if (ret < 0) {
 		return ret;
 	}
 
-	if (s->l && s->s[s->l-1] == '\n') {
+	if (s->l > l0 && s->s[s->l-1] == '\n') {
 		s->l--;
-		if (s->l && s->s[s->l-1] == '\r') s->l--;
+		if (s->l > l0 && s->s[s->l-1] == '\r') s->l--;
 	}
 	s->s[s->l] = '\0';
 	return 0;