1 files changed, 5 insertions, 4 deletions
diff --git a/libavformat/os_support.c b/libavformat/os_support.c
index e28a7bc748..5342a02ed0 100644
--- a/libavformat/os_support.c
+++ b/libavformat/os_support.c
@@ -46,16 +46,17 @@ int inet_aton (const char * str, struct in_addr * add)
 
     add1 = atoi(pch);
     pch = strpbrk(pch,".");
-    if (pch == 0 || ++pch == 0) goto done;
+    if (pch == 0 || ++pch == 0) return 0;
     add2 = atoi(pch);
     pch = strpbrk(pch,".");
-    if (pch == 0 || ++pch == 0) goto done;
+    if (pch == 0 || ++pch == 0) return 0;
     add3 = atoi(pch);
     pch = strpbrk(pch,".");
-    if (pch == 0 || ++pch == 0) goto done;
+    if (pch == 0 || ++pch == 0) return 0;
     add4 = atoi(pch);
 
-done:
+    if (!add1 || (add1|add2|add3|add4) > 255) return 0;
+
     add->s_addr=(add4<<24)+(add3<<16)+(add2<<8)+add1;
 
     return 1;