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Vendor import of netcat as of OPENBSD_4_6.

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This commit is contained in:
Xin LI 2010-01-19 18:25:10 +00:00
parent c788419214
commit e49b913015
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/vendor/netcat/dist/; revision=202637
svn path=/vendor/netcat/4.6/; revision=202638; tag=vendor/netcat/4.6
2 changed files with 30 additions and 6 deletions
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8
nc.1
View File

@ -1,4 +1,4 @@
.\" $OpenBSD: nc.1,v 1.48 2008/09/19 13:24:41 sobrado Exp $
.\" $OpenBSD: nc.1,v 1.50 2009/06/05 06:47:12 jmc Exp $
.\"
.\" Copyright (c) 1996 David Sacerdote
.\" All rights reserved.
@ -25,7 +25,7 @@
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd $Mdocdate: May 6 2008 $
.Dd $Mdocdate: June 5 2009 $
.Dt NC 1
.Os
.Sh NAME
@ -42,6 +42,7 @@
.Op Fl p Ar source_port
.Op Fl s Ar source_ip_address
.Op Fl T Ar ToS
.Op Fl V Ar rdomain
.Op Fl w Ar timeout
.Op Fl X Ar proxy_protocol
.Oo Xo
@ -176,6 +177,9 @@ to script telnet sessions.
Specifies to use Unix Domain Sockets.
.It Fl u
Use UDP instead of the default option of TCP.
.It Fl V Ar rdomain
Set the routing domain.
The default is 0.
.It Fl v
Have
.Nm

28
netcat.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: netcat.c,v 1.92 2008/09/19 13:24:41 sobrado Exp $ */
/* $OpenBSD: netcat.c,v 1.93 2009/06/05 00:18:10 claudio Exp $ */
/*
* Copyright (c) 2001 Eric Jackson <ericj@monkey.org>
*
@ -84,6 +84,7 @@ int Iflag; /* TCP receive buffer size */
int Oflag; /* TCP send buffer size */
int Sflag; /* TCP MD5 signature option */
int Tflag = -1; /* IP Type of Service */
u_int rdomain;
int timeout = -1;
int family = AF_UNSPEC;
@ -125,7 +126,7 @@ main(int argc, char *argv[])
sv = NULL;
while ((ch = getopt(argc, argv,
"46DdhI:i:jklnO:P:p:rSs:tT:Uuvw:X:x:z")) != -1) {
"46DdhI:i:jklnO:P:p:rSs:tT:UuV:vw:X:x:z")) != -1) {
switch (ch) {
case '4':
family = AF_INET;
@ -187,6 +188,12 @@ main(int argc, char *argv[])
case 'u':
uflag = 1;
break;
case 'V':
rdomain = (unsigned int)strtonum(optarg, 0,
RT_TABLEID_MAX, &errstr);
if (errstr)
errx(1, "rdomain %s: %s", errstr, optarg);
break;
case 'v':
vflag = 1;
break;
@ -498,6 +505,12 @@ remote_connect(const char *host, const char *port, struct addrinfo hints)
res0->ai_protocol)) < 0)
continue;
if (rdomain) {
if (setsockopt(s, IPPROTO_IP, SO_RDOMAIN, &rdomain,
sizeof(rdomain)) == -1)
err(1, "setsockopt SO_RDOMAIN");
}
/* Bind to a local port or source address if specified. */
if (sflag || pflag) {
struct addrinfo ahints, *ares;
@ -566,6 +579,12 @@ local_listen(char *host, char *port, struct addrinfo hints)
res0->ai_protocol)) < 0)
continue;
if (rdomain) {
if (setsockopt(s, IPPROTO_IP, SO_RDOMAIN, &rdomain,
sizeof(rdomain)) == -1)
err(1, "setsockopt SO_RDOMAIN");
}
ret = setsockopt(s, SOL_SOCKET, SO_REUSEPORT, &x, sizeof(x));
if (ret == -1)
err(1, NULL);
@ -851,6 +870,7 @@ help(void)
\t-t Answer TELNET negotiation\n\
\t-U Use UNIX domain socket\n\
\t-u UDP mode\n\
\t-V rdomain Specify alternate routing domain\n\
\t-v Verbose\n\
\t-w secs\t Timeout for connects and final net reads\n\
\t-X proto Proxy protocol: \"4\", \"5\" (SOCKS) or \"connect\"\n\
@ -866,8 +886,8 @@ usage(int ret)
fprintf(stderr,
"usage: nc [-46DdhklnrStUuvz] [-I length] [-i interval] [-O length]\n"
"\t [-P proxy_username] [-p source_port] [-s source_ip_address] [-T ToS]\n"
"\t [-w timeout] [-X proxy_protocol] [-x proxy_address[:port]] [hostname]\n"
"\t [port]\n");
"\t [-V rdomain] [-w timeout] [-X proxy_protocol]\n"
"\t [-x proxy_address[:port]] [hostname] [port]\n");
if (ret)
exit(1);
}