https: NULL deref

(in currently unused code)

modules/access/http/message.c

@@ -783,8 +783,10 @@ time_t vlc_http_msg_get_mtime(const struct vlc_http_msg *m)
 unsigned vlc_http_msg_get_retry_after(const struct vlc_http_msg *m)
 {
     const char *str = vlc_http_msg_get_header(m, "Retry-After");
-    char *end;
+    if (str == NULL)
+        return 0;
 
+    char *end;
     unsigned long delay = strtoul(str, &end, 10);
     if (end != str && *end == '\0')
         return delay;

modules/access/http/message_test.c

@@ -150,6 +150,7 @@ static time_t parse_date(const char *str)
     t1 = vlc_http_msg_get_atime(m);
     assert(vlc_http_msg_add_header(m, "Last-Modified", "%s", str) == 0);
     t2 = vlc_http_msg_get_mtime(m);
+    assert(vlc_http_msg_get_retry_after(m) == 0);
     assert(vlc_http_msg_add_header(m, "Retry-After", "%s", str) == 0);
     vlc_http_msg_get_retry_after(m);
     vlc_http_msg_destroy(m);