Check version before accepting packet.

0a4d495f · Juliusz Chroboczek · 2ec504a4 · 0a4d495f
Commit 0a4d495f authored Jul 06, 2007 by Juliusz Chroboczek
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message.c message.c +7 -0

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--- a/message.c
+++ b/message.c
@@ -78,6 +78,13 @@ parse_packet(const unsigned char *from, struct network *net,
        return;
    }

+    if(packet[1] != 0) {
+        fprintf(stderr,
+                "Received packet with unknown version %d on %s from %s.\n",
+                packet[1], net->ifname, format_address(from));
+        return;
+    }
+
    j = 0;
    for(i = 0; i < (len - 4) / 20; i++) {
        message = packet + 4 + 20 * i;