traceroute: fix compile error due to FreeBSD compat
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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@ -713,11 +713,16 @@ packet4_ok(int read_len, int seq)
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up = (struct udphdr *)((char *)hip + hlen);
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if (hlen + 12 <= read_len
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&& hip->ip_p == IPPROTO_UDP
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// Off: since we do not form the entire IP packet,
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#if !defined(__FreeBSD__)
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// Disabled source check: since we do not form the entire IP packet,
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// but defer it to kernel, we can't set source port,
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// and thus can't check it here in the reply
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/* && up->source == ident */
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&& up->dest == htons(port + seq)
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#else
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/* && up->uh_sport == ident */
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&& up->uh_dport == htons(port + seq)
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#endif
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) {
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return (type == ICMP_TIMXCEED ? -1 : code + 1);
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}
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