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-rw-r--r--contrib/tcpdump/print-tcp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/contrib/tcpdump/print-tcp.c b/contrib/tcpdump/print-tcp.c
index ab736a0..c1dede8 100644
--- a/contrib/tcpdump/print-tcp.c
+++ b/contrib/tcpdump/print-tcp.c
@@ -799,7 +799,7 @@ tcp_verify_signature(const struct ip *ip, const struct tcphdr *tp,
MD5_Update(&ctx, tcpmd5secret, strlen(tcpmd5secret));
MD5_Final(sig, &ctx);
- if (memcmp(rcvsig, sig, 16))
+ if (memcmp(rcvsig, sig, 16) == 0)
return (SIGNATURE_VALID);
else
return (SIGNATURE_INVALID);
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