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Allow connections to port 0. Fixes #1560

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dmiller
2019-04-18 16:18:16 +00:00
parent 85ec647932
commit 3de7a0177b
2 changed files with 4 additions and 1 deletions
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3
CHANGELOG
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@@ -1,5 +1,8 @@
#Nmap Changelog ($Id$); -*-text-*-
o [Ncat][GH#1560] Allow Ncat to connect to servers on port 0, provided that the
socket implementation allows this. [Daniel Miller]
o Update the included libpcap to 1.9.0. [Daniel Miller]
o [NSE][GH#1544] Fix a logic error that resulted in scripts not honoring the

2
ncat/ncat_main.c
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@@ -891,7 +891,7 @@ int main(int argc, char *argv[])
errno = 0;
long_port = strtol(argv[optind], NULL, 10);
if (errno != 0 || long_port <= 0 || long_port > 65535)
if (errno != 0 || long_port < 0 || long_port > 65535)
bye("Invalid port number \"%s\".", argv[optind]);
o.portno = (unsigned short) long_port;