diff options
Diffstat (limited to 'usr.bin')
| -rw-r--r-- | usr.bin/nc/nc.1 | 6 | ||||
| -rw-r--r-- | usr.bin/nc/netcat.c | 21 |
2 files changed, 22 insertions, 5 deletions
diff --git a/usr.bin/nc/nc.1 b/usr.bin/nc/nc.1 index 719cdd84664..182950a9524 100644 --- a/usr.bin/nc/nc.1 +++ b/usr.bin/nc/nc.1 @@ -1,4 +1,4 @@ -.\" $OpenBSD: nc.1,v 1.31 2004/03/12 10:10:00 jmc Exp $ +.\" $OpenBSD: nc.1,v 1.32 2004/07/15 15:07:52 markus Exp $ .\" .\" Copyright (c) 1996 David Sacerdote .\" All rights reserved. @@ -34,7 +34,7 @@ .Sh SYNOPSIS .Nm nc .Bk -words -.Op Fl 46dhklnrStUuvz +.Op Fl 46DdhklnrStUuvz .Op Fl i Ar interval .Op Fl p Ar source_port .Op Fl s Ar source_ip_address @@ -91,6 +91,8 @@ to use IPv4 addresses only. Forces .Nm to use IPv6 addresses only. +.It Fl D +Enable debugging on the socket. .It Fl d Do not attempt to read from stdin. .It Fl h diff --git a/usr.bin/nc/netcat.c b/usr.bin/nc/netcat.c index ee151972e87..ea907d6b1ad 100644 --- a/usr.bin/nc/netcat.c +++ b/usr.bin/nc/netcat.c @@ -1,4 +1,4 @@ -/* $OpenBSD: netcat.c,v 1.72 2004/03/12 10:10:00 jmc Exp $ */ +/* $OpenBSD: netcat.c,v 1.73 2004/07/15 15:07:52 markus Exp $ */ /* * Copyright (c) 2001 Eric Jackson <ericj@monkey.org> * @@ -73,6 +73,7 @@ int uflag; /* UDP - Default to TCP */ int vflag; /* Verbosity */ int xflag; /* Socks proxy */ int zflag; /* Port Scan Flag */ +int Dflag; /* sodebug */ int Sflag; /* TCP MD5 signature option */ int timeout = -1; @@ -114,7 +115,7 @@ main(int argc, char *argv[]) endp = NULL; sv = NULL; - while ((ch = getopt(argc, argv, "46UX:dhi:klnp:rs:tuvw:x:zS")) != -1) { + while ((ch = getopt(argc, argv, "46Ddhi:klnp:rSs:tUuvw:X:x:z")) != -1) { switch (ch) { case '4': family = AF_INET; @@ -184,6 +185,9 @@ main(int argc, char *argv[]) case 'z': zflag = 1; break; + case 'D': + Dflag = 1; + break; case 'S': Sflag = 1; break; @@ -486,6 +490,11 @@ remote_connect(char *host, char *port, struct addrinfo hints) &x, sizeof(x)) == -1) err(1, NULL); } + if (Dflag) { + if (setsockopt(s, SOL_SOCKET, SO_DEBUG, + &x, sizeof(x)) == -1) + err(1, NULL); + } if (connect(s, res0->ai_addr, res0->ai_addrlen) == 0) break; @@ -542,6 +551,11 @@ local_listen(char *host, char *port, struct addrinfo hints) if (ret == -1) err(1, NULL); } + if (Dflag) { + if (setsockopt(s, SOL_SOCKET, SO_DEBUG, + &x, sizeof(x)) == -1) + err(1, NULL); + } if (bind(s, (struct sockaddr *)res0->ai_addr, res0->ai_addrlen) == 0) @@ -753,6 +767,7 @@ help(void) fprintf(stderr, "\tCommand Summary:\n\ \t-4 Use IPv4\n\ \t-6 Use IPv6\n\ + \t-D Enable the debug socket option\n\ \t-d Detach from stdin\n\ \t-h This help text\n\ \t-i secs\t Delay interval for lines sent, ports scanned\n\ @@ -778,7 +793,7 @@ help(void) void usage(int ret) { - fprintf(stderr, "usage: nc [-46dhklnrStUuvz] [-i interval] [-p source_port]\n"); + fprintf(stderr, "usage: nc [-46DdhklnrStUuvz] [-i interval] [-p source_port]\n"); fprintf(stderr, "\t [-s source_ip_address] [-w timeout] [-X socks_version]\n"); fprintf(stderr, "\t [-x proxy_address[:port]] [hostname] [port[s]]\n"); if (ret) |