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Be prepared for x11_setup_display() to return NULL (for instance, if DISPLAY
[u/mdw/putty]
/
ssh.c
diff --git
a/ssh.c
b/ssh.c
index
cdf321f
..
92fadd0
100644
(file)
--- a/
ssh.c
+++ b/
ssh.c
@@
-4996,10
+4996,10
@@
static void do_ssh1_connection(Ssh ssh, unsigned char *in, int inlen,
}
}
}
}
- if (ssh->cfg.x11_forward) {
+ if (ssh->cfg.x11_forward &&
+ (ssh->x11disp = x11_setup_display(ssh->cfg.x11_display,
+ ssh->cfg.x11_auth, &ssh->cfg))) {
logevent("Requesting X11 forwarding");
logevent("Requesting X11 forwarding");
- ssh->x11disp = x11_setup_display(ssh->cfg.x11_display,
- ssh->cfg.x11_auth, &ssh->cfg);
/*
* Note that while we blank the X authentication data here, we don't
* take any special action to blank the start of an X11 channel,
/*
* Note that while we blank the X authentication data here, we don't
* take any special action to blank the start of an X11 channel,
@@
-8577,10
+8577,10
@@
static void do_ssh2_authconn(Ssh ssh, unsigned char *in, int inlen,
/*
* Potentially enable X11 forwarding.
*/
/*
* Potentially enable X11 forwarding.
*/
- if (ssh->mainchan && !ssh->ncmode && ssh->cfg.x11_forward) {
+ if (ssh->mainchan && !ssh->ncmode && ssh->cfg.x11_forward &&
+ (ssh->x11disp = x11_setup_display(ssh->cfg.x11_display,
+ ssh->cfg.x11_auth, &ssh->cfg))) {
logevent("Requesting X11 forwarding");
logevent("Requesting X11 forwarding");
- ssh->x11disp = x11_setup_display(ssh->cfg.x11_display,
- ssh->cfg.x11_auth, &ssh->cfg);
s->pktout = ssh2_pkt_init(SSH2_MSG_CHANNEL_REQUEST);
ssh2_pkt_adduint32(s->pktout, ssh->mainchan->remoteid);
ssh2_pkt_addstring(s->pktout, "x11-req");
s->pktout = ssh2_pkt_init(SSH2_MSG_CHANNEL_REQUEST);
ssh2_pkt_adduint32(s->pktout, ssh->mainchan->remoteid);
ssh2_pkt_addstring(s->pktout, "x11-req");