diff options
| -rw-r--r-- | contrib/traceroute/traceroute.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/contrib/traceroute/traceroute.c b/contrib/traceroute/traceroute.c index 1c98262..63cefa1 100644 --- a/contrib/traceroute/traceroute.c +++ b/contrib/traceroute/traceroute.c @@ -1406,8 +1406,7 @@ tcp_prep(struct outdata *outdata) tcp->th_sport = htons(ident); tcp->th_dport = htons(port + (fixedPort ? 0 : outdata->seq)); - tcp->th_seq = (tcp->th_sport << 16) | (tcp->th_dport + - (fixedPort ? outdata->seq : 0)); + tcp->th_seq = (tcp->th_sport << 16) | tcp->th_dport; tcp->th_ack = 0; tcp->th_off = 5; tcp->th_flags = TH_SYN; @@ -1425,8 +1424,8 @@ tcp_check(const u_char *data, int seq) struct tcphdr *const tcp = (struct tcphdr *) data; return (ntohs(tcp->th_sport) == ident - && ntohs(tcp->th_dport) == port + (fixedPort ? 0 : seq)) - && tcp->th_seq == (((tcp_seq)ident << 16) | (port + seq)); + && ntohs(tcp->th_dport) == port + (fixedPort ? 0 : seq) + && tcp->th_seq == (tcp_seq)((tcp->th_sport << 16) | tcp->th_dport)); } void |
