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https://github.com/Ponce/slackbuilds
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32 lines
859 B
Diff
32 lines
859 B
Diff
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Adds RTT handling for ICMP destination unreachable packets
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--- a/waitpacket.c
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+++ b/waitpacket.c
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@@ -229,6 +229,7 @@
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{
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struct myicmphdr icmp;
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struct myiphdr quoted_ip;
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+ struct myudphdr quoted_udp;
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/* Check if the packet can contain the ICMP header */
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if (size < ICMPHDR_SIZE) {
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@@ -286,6 +287,18 @@
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case 3:
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if (!opt_quiet)
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log_icmp_unreach(inet_ntoa(src), icmp.code);
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+ if (quoted_ip.protocol == IPPROTO_UDP)
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+ {
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+ int sequence = 0, status;
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+ float ms_delay = 0.0;
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+ unsigned short port;
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+
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+ /* Get RTT for UDP packet */
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+ memcpy("ed_udp, packet+ICMPHDR_SIZE+(quoted_ip.ihl<<2), sizeof(quoted_udp));
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+ port = ntohs(quoted_udp.uh_sport);
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+ status = rtt(&sequence, port, &ms_delay);
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+ printf("status=%d port=%d seq=%d\n", status, port, sequence);
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+ }
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return 1;
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case 11:
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if (opt_traceroute)
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