- markus@cvs.openbsd.org 2001/12/20 16:37:29
[channels.c channels.h session.c]
setup x11 listen socket for just one connect if the client requests so.
(v2 only, but the openssh client does not support this feature).
diff --git a/channels.c b/channels.c
index 63eb5bc..340b106 100644
--- a/channels.c
+++ b/channels.c
@@ -39,7 +39,7 @@
*/
#include "includes.h"
-RCSID("$OpenBSD: channels.c,v 1.148 2001/12/19 07:18:56 deraadt Exp $");
+RCSID("$OpenBSD: channels.c,v 1.149 2001/12/20 16:37:29 markus Exp $");
#include "ssh.h"
#include "ssh1.h"
@@ -263,6 +263,7 @@
c->cb_arg = NULL;
c->cb_event = 0;
c->force_drain = 0;
+ c->single_connection = 0;
c->detach_user = NULL;
c->input_filter = NULL;
debug("channel %d: new [%s]", found, remote_name);
@@ -1003,6 +1004,11 @@
debug("X11 connection requested.");
addrlen = sizeof(addr);
newsock = accept(c->sock, &addr, &addrlen);
+ if (c->single_connection) {
+ debug("single_connection: closing X11 listener.");
+ channel_close_fd(&c->sock);
+ chan_mark_dead(c);
+ }
if (newsock < 0) {
error("accept: %.100s", strerror(errno));
return;
@@ -1029,8 +1035,8 @@
packet_start(SSH2_MSG_CHANNEL_OPEN);
packet_put_cstring("x11");
packet_put_int(nc->self);
- packet_put_int(c->local_window_max);
- packet_put_int(c->local_maxpacket);
+ packet_put_int(nc->local_window_max);
+ packet_put_int(nc->local_maxpacket);
/* originator ipaddr and port */
packet_put_cstring(remote_ipaddr);
if (datafellows & SSH_BUG_X11FWD) {
@@ -2405,8 +2411,10 @@
* an error occurs.
*/
int
-x11_create_display_inet(int x11_display_offset, int gateway_ports)
+x11_create_display_inet(int x11_display_offset, int gateway_ports,
+ int single_connection)
{
+ Channel *nc = NULL;
int display_number, sock;
u_short port;
struct addrinfo hints, *ai, *aitop;
@@ -2482,10 +2490,12 @@
/* Allocate a channel for each socket. */
for (n = 0; n < num_socks; n++) {
sock = socks[n];
- (void) channel_new("x11 listener",
+ nc = channel_new("x11 listener",
SSH_CHANNEL_X11_LISTENER, sock, sock, -1,
CHAN_X11_WINDOW_DEFAULT, CHAN_X11_PACKET_DEFAULT,
0, xstrdup("X11 inet listener"), 1);
+ if (nc != NULL)
+ nc->single_connection = single_connection;
}
/* Return the display number for the DISPLAY environment variable. */