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MFC: netcat from OpenBSD 4.1-RELEASE.

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This commit is contained in:
delphij 2007-05-31 07:23:11 +00:00
parent 025fdf171c
commit cc5b12cd19
3 changed files with 30 additions and 32 deletions
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6
contrib/netcat/nc.1
View File

@ -1,4 +1,4 @@
.\" $OpenBSD: nc.1,v 1.43 2006/01/31 09:34:12 jmc Exp $
.\" $OpenBSD: nc.1,v 1.44 2006/12/02 01:08:30 jmc Exp $
.\"
.\" Copyright (c) 1996 David Sacerdote
.\" All rights reserved.
@ -345,8 +345,8 @@ As another example, an email may be submitted to an SMTP server using:
.Bd -literal -offset indent
$ nc localhost 25 \*(Lt\*(Lt EOF
HELO host.example.com
MAIL FROM: \*(Ltuser@host.example.com\*(Gt
RCPT TO: \*(Ltuser2@host.example.com\*(Gt
MAIL FROM:\*(Ltuser@host.example.com\*(Gt
RCPT TO:\*(Ltuser2@host.example.com\*(Gt
DATA
Body of email.
\&.

51
contrib/netcat/netcat.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: netcat.c,v 1.87 2006/02/01 21:33:14 otto Exp $ */
/* $OpenBSD: netcat.c,v 1.89 2007/02/20 14:11:17 jmc Exp $ */
/*
* Copyright (c) 2001 Eric Jackson <ericj@monkey.org>
*
@ -72,7 +72,7 @@
/* Command Line Options */
int Eflag; /* Use IPsec ESP */
int dflag; /* detached, no stdin */
int iflag; /* Interval Flag */
unsigned int iflag; /* Interval Flag */
int jflag; /* use jumbo frames if we can */
int kflag; /* More than one connect */
int lflag; /* Bind to local port */
@ -120,13 +120,13 @@ int
main(int argc, char *argv[])
{
int ch, s, ret, socksv, ipsec_count;
char *host, *uport, *endp;
char *host, *uport;
struct addrinfo hints;
struct servent *sv;
socklen_t len;
struct sockaddr_storage cliaddr;
char *proxy;
const char *proxyhost = "", *proxyport = NULL;
const char *errstr, *proxyhost = "", *proxyport = NULL;
struct addrinfo proxyhints;
ret = 1;
@ -135,7 +135,6 @@ main(int argc, char *argv[])
socksv = 5;
host = NULL;
uport = NULL;
endp = NULL;
sv = NULL;
while ((ch = getopt(argc, argv,
@ -182,9 +181,9 @@ main(int argc, char *argv[])
help();
break;
case 'i':
iflag = (int)strtoul(optarg, &endp, 10);
if (iflag < 0 || *endp != '\0')
errx(1, "interval cannot be negative");
iflag = strtonum(optarg, 0, UINT_MAX, &errstr);
if (errstr)
errx(1, "interval %s: %s", errstr, optarg);
break;
#ifdef SO_JUMBO
case 'j':
@ -225,11 +224,9 @@ main(int argc, char *argv[])
vflag = 1;
break;
case 'w':
timeout = (int)strtoul(optarg, &endp, 10);
if (timeout < 0 || *endp != '\0')
errx(1, "timeout cannot be negative");
if (timeout >= (INT_MAX / 1000))
errx(1, "timeout too large");
timeout = strtonum(optarg, 0, INT_MAX / 1000, &errstr);
if (errstr)
errx(1, "timeout %s: %s", errstr, optarg);
timeout *= 1000;
break;
case 'x':
@ -727,7 +724,8 @@ atelnet(int nfd, unsigned char *buf, unsigned int size)
void
build_ports(char *p)
{
char *n, *endp;
const char *errstr;
char *n;
int hi, lo, cp;
int x = 0;
@ -739,12 +737,12 @@ build_ports(char *p)
n++;
/* Make sure the ports are in order: lowest->highest. */
hi = (int)strtoul(n, &endp, 10);
if (hi <= 0 || hi > PORT_MAX || *endp != '\0')
errx(1, "port range not valid");
lo = (int)strtoul(p, &endp, 10);
if (lo <= 0 || lo > PORT_MAX || *endp != '\0')
errx(1, "port range not valid");
hi = strtonum(n, 1, PORT_MAX, &errstr);
if (errstr)
errx(1, "port number %s: %s", errstr, n);
lo = strtonum(p, 1, PORT_MAX, &errstr);
if (errstr)
errx(1, "port number %s: %s", errstr, p);
if (lo > hi) {
cp = hi;
@ -774,9 +772,9 @@ build_ports(char *p)
}
}
} else {
hi = (int)strtoul(p, &endp, 10);
if (hi <= 0 || hi > PORT_MAX || *endp != '\0')
errx(1, "port range not valid");
hi = strtonum(p, 1, PORT_MAX, &errstr);
if (errstr)
errx(1, "port number %s: %s", errstr, p);
portlist[0] = calloc(1, PORT_MAX_LEN);
if (portlist[0] == NULL)
err(1, NULL);
@ -916,13 +914,12 @@ add_ipsec_policy(int s, char *policy)
void
usage(int ret)
{
#ifdef IPSEC
fprintf(stderr, "usage: nc [-46DEdhklnrStUuvz] [-e policy] [-i interval] [-p source_port]\n");
fprintf(stderr, "usage: nc [-46DEdhklnrStUuvz] [-e policy] [-i interval] [-P proxy_username] [-p source_port]\n");
#else
fprintf(stderr, "usage: nc [-46DdhklnrStUuvz] [-i interval] [-p source_port]\n");
fprintf(stderr, "usage: nc [-46DdhklnrStUuvz] [-i interval] [-P proxy_username] [-p source_port]\n");
#endif
fprintf(stderr, "\t [-s source_ip_address] [-T ToS] [-w timeout] [-X proxy_version]\n");
fprintf(stderr, "\t [-s source_ip_address] [-T ToS] [-w timeout] [-X proxy_protocol]\n");
fprintf(stderr, "\t [-x proxy_address[:port]] [hostname] [port[s]]\n");
if (ret)
exit(1);

5
contrib/netcat/socks.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: socks.c,v 1.16 2006/01/25 23:21:37 djm Exp $ */
/* $OpenBSD: socks.c,v 1.17 2006/09/25 04:51:20 ray Exp $ */
/*
* Copyright (c) 1999 Niklas Hallqvist. All rights reserved.
@ -307,7 +307,8 @@ socks_connect(const char *host, const char *port,
}
close(proxyfd);
goto again;
} else if (strncmp(buf, "HTTP/1.0 200 ", 12) != 0)
} else if (strncmp(buf, "HTTP/1.0 200 ", 12) != 0 &&
strncmp(buf, "HTTP/1.1 200 ", 12) != 0)
errx(1, "Proxy error: \"%s\"", buf);
/* Headers continue until we hit an empty line */