version 1.231, 2005/02/16 09:56:44 |
version 1.232, 2005/03/01 10:09:52 |
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{ |
{ |
fprintf(stderr, |
fprintf(stderr, |
"usage: ssh [-1246AaCfgkMNnqsTtVvXxY] [-b bind_address] [-c cipher_spec]\n" |
"usage: ssh [-1246AaCfgkMNnqsTtVvXxY] [-b bind_address] [-c cipher_spec]\n" |
" [-D port] [-e escape_char] [-F configfile] [-i identity_file]\n" |
" [-D [listen-host:]port] [-e escape_char] [-F configfile]\n" |
" [-L port:host:hostport] [-l login_name] [-m mac_spec] [-O ctl_cmd]\n" |
" [-i identity_file] [-L [listen-host:]port:host:hostport]\n" |
" [-o option] [-p port] [-R port:host:hostport] [-S ctl_path]\n" |
" [-l login_name] [-m mac_spec] [-O ctl_cmd] [-o option] [-p port]\n" |
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" [-R [listen-host:]port:host:hostport] [-S ctl_path]\n" |
" [user@]hostname [command]\n" |
" [user@]hostname [command]\n" |
); |
); |
exit(1); |
exit(1); |
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main(int ac, char **av) |
main(int ac, char **av) |
{ |
{ |
int i, opt, exit_status; |
int i, opt, exit_status; |
u_short fwd_port, fwd_host_port; |
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char sfwd_port[6], sfwd_host_port[6]; |
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char *p, *cp, *line, buf[256]; |
char *p, *cp, *line, buf[256]; |
struct stat st; |
struct stat st; |
struct passwd *pw; |
struct passwd *pw; |
int dummy; |
int dummy; |
extern int optind, optreset; |
extern int optind, optreset; |
extern char *optarg; |
extern char *optarg; |
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Forward fwd; |
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/* |
/* |
* Save the original real uid. It will be needed later (uid-swapping |
* Save the original real uid. It will be needed later (uid-swapping |
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break; |
break; |
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case 'L': |
case 'L': |
case 'R': |
if (parse_forward(&fwd, optarg)) |
if (sscanf(optarg, "%5[0-9]:%255[^:]:%5[0-9]", |
add_local_forward(&options, &fwd); |
sfwd_port, buf, sfwd_host_port) != 3 && |
else { |
sscanf(optarg, "%5[0-9]/%255[^/]/%5[0-9]", |
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sfwd_port, buf, sfwd_host_port) != 3) { |
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fprintf(stderr, |
fprintf(stderr, |
"Bad forwarding specification '%s'\n", |
"Bad local forwarding specification '%s'\n", |
optarg); |
optarg); |
usage(); |
exit(1); |
/* NOTREACHED */ |
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} |
} |
if ((fwd_port = a2port(sfwd_port)) == 0 || |
break; |
(fwd_host_port = a2port(sfwd_host_port)) == 0) { |
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case 'R': |
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if (parse_forward(&fwd, optarg)) { |
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add_remote_forward(&options, &fwd); |
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} else { |
fprintf(stderr, |
fprintf(stderr, |
"Bad forwarding port(s) '%s'\n", optarg); |
"Bad remote forwarding specification " |
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"'%s'\n", optarg); |
exit(1); |
exit(1); |
} |
} |
if (opt == 'L') |
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add_local_forward(&options, fwd_port, buf, |
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fwd_host_port); |
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else if (opt == 'R') |
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add_remote_forward(&options, fwd_port, buf, |
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fwd_host_port); |
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break; |
break; |
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case 'D': |
case 'D': |
fwd_port = a2port(optarg); |
cp = p = xstrdup(optarg); |
if (fwd_port == 0) { |
memset(&fwd, '\0', sizeof(fwd)); |
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fwd.connect_host = "socks"; |
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if ((fwd.listen_host = hpdelim(&cp)) == NULL) { |
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fprintf(stderr, "Bad dynamic forwarding " |
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"specification '%.100s'\n", optarg); |
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exit(1); |
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} |
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if (cp != NULL) { |
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fwd.listen_port = a2port(cp); |
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fwd.listen_host = cleanhostname(fwd.listen_host); |
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} else { |
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fwd.listen_port = a2port(fwd.listen_host); |
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fwd.listen_host = ""; |
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} |
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if (fwd.listen_port == 0) { |
fprintf(stderr, "Bad dynamic port '%s'\n", |
fprintf(stderr, "Bad dynamic port '%s'\n", |
optarg); |
optarg); |
exit(1); |
exit(1); |
} |
} |
add_local_forward(&options, fwd_port, "socks", 0); |
add_local_forward(&options, &fwd); |
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xfree(p); |
break; |
break; |
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case 'C': |
case 'C': |
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/* Initiate local TCP/IP port forwardings. */ |
/* Initiate local TCP/IP port forwardings. */ |
for (i = 0; i < options.num_local_forwards; i++) { |
for (i = 0; i < options.num_local_forwards; i++) { |
debug("Connections to local port %d forwarded to remote address %.200s:%d", |
debug("Local connections to %.200s:%d forwarded to remote " |
options.local_forwards[i].port, |
"address %.200s:%d", |
options.local_forwards[i].host, |
(options.local_forwards[i].listen_host == NULL) ? |
options.local_forwards[i].host_port); |
(options.gateway_ports ? "*" : "LOCALHOST") : |
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options.local_forwards[i].listen_host, |
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options.local_forwards[i].listen_port, |
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options.local_forwards[i].connect_host, |
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options.local_forwards[i].connect_port); |
success += channel_setup_local_fwd_listener( |
success += channel_setup_local_fwd_listener( |
options.local_forwards[i].port, |
options.local_forwards[i].listen_host, |
options.local_forwards[i].host, |
options.local_forwards[i].listen_port, |
options.local_forwards[i].host_port, |
options.local_forwards[i].connect_host, |
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options.local_forwards[i].connect_port, |
options.gateway_ports); |
options.gateway_ports); |
} |
} |
if (i > 0 && success == 0) |
if (i > 0 && success == 0) |
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/* Initiate remote TCP/IP port forwardings. */ |
/* Initiate remote TCP/IP port forwardings. */ |
for (i = 0; i < options.num_remote_forwards; i++) { |
for (i = 0; i < options.num_remote_forwards; i++) { |
debug("Connections to remote port %d forwarded to local address %.200s:%d", |
debug("Remote connections from %.200s:%d forwarded to " |
options.remote_forwards[i].port, |
"local address %.200s:%d", |
options.remote_forwards[i].host, |
options.remote_forwards[i].listen_host, |
options.remote_forwards[i].host_port); |
options.remote_forwards[i].listen_port, |
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options.remote_forwards[i].connect_host, |
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options.remote_forwards[i].connect_port); |
channel_request_remote_forwarding( |
channel_request_remote_forwarding( |
options.remote_forwards[i].port, |
options.remote_forwards[i].listen_host, |
options.remote_forwards[i].host, |
options.remote_forwards[i].listen_port, |
options.remote_forwards[i].host_port); |
options.remote_forwards[i].connect_host, |
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options.remote_forwards[i].connect_port); |
} |
} |
} |
} |
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return; |
return; |
debug("remote forward %s for: listen %d, connect %s:%d", |
debug("remote forward %s for: listen %d, connect %s:%d", |
type == SSH2_MSG_REQUEST_SUCCESS ? "success" : "failure", |
type == SSH2_MSG_REQUEST_SUCCESS ? "success" : "failure", |
options.remote_forwards[i].port, |
options.remote_forwards[i].listen_port, |
options.remote_forwards[i].host, |
options.remote_forwards[i].connect_host, |
options.remote_forwards[i].host_port); |
options.remote_forwards[i].connect_port); |
if (type == SSH2_MSG_REQUEST_FAILURE) |
if (type == SSH2_MSG_REQUEST_FAILURE) |
logit("Warning: remote port forwarding failed for listen port %d", |
logit("Warning: remote port forwarding failed for listen " |
options.remote_forwards[i].port); |
"port %d", options.remote_forwards[i].listen_port); |
} |
} |
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static void |
static void |