Fixed wrong result of cal_days_in_month() with bad dates

21 years ago · b14271dbfa
1 changed files with 5 additions and 0 deletions
--- a/ext/calendar/calendar.c
+++ b/ext/calendar/calendar.c
@ -246,6 +246,11 @@ PHP_FUNCTION(cal_days_in_month)

 	sdn_start = calendar->to_jd(year, month, 1);

+	if (sdn_start == 0) {
+        php_error_docref(NULL TSRMLS_CC, E_WARNING, "invalid date.");
+        RETURN_FALSE;
+	}
+
 	sdn_next = calendar->to_jd(year, 1 + month, 1);

 	if (sdn_next == 0) {