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Add a bug-compatibility flag to disable the

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winadj@putty.projects.tartarus.org request. Not currently enabled
automatically, but should be usable as a manual workaround.

[originally from svn r9592]
This commit is contained in:
Simon Tatham
2012-07-28 19:30:12 +00:00
parent 0b8753a4b9
commit 71f0c7546d
6 changed files with 42 additions and 1 deletions
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13
ssh.c
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@ -196,6 +196,7 @@ static const char *const ssh2_disconnect_reasons[] = {
#define BUG_SSH2_PK_SESSIONID 128
#define BUG_SSH2_MAXPKT 256
#define BUG_CHOKES_ON_SSH2_IGNORE 512
#define BUG_CHOKES_ON_WINADJ 1024
/*
* Codes for terminal modes.
@ -2580,6 +2581,15 @@ static void ssh_detect_bugs(Ssh ssh, char *vstring)
ssh->remote_bugs |= BUG_CHOKES_ON_SSH2_IGNORE;
logevent("We believe remote version has SSH-2 ignore bug");
}
if (conf_get_int(ssh->conf, CONF_sshbug_winadj) == FORCE_ON) {
/*
* Servers that don't support our winadj request for one
* reason or another. Currently, none detected automatically.
*/
ssh->remote_bugs |= BUG_CHOKES_ON_WINADJ;
logevent("We believe remote version has winadj bug");
}
}
/*
@ -6635,7 +6645,8 @@ static void ssh2_set_window(struct ssh_channel *c, int newwin)
* unexpected CHANNEL_FAILUREs.
*/
if (newwin == c->v.v2.locmaxwin &&
ssh->packet_dispatch[SSH2_MSG_CHANNEL_FAILURE]) {
ssh->packet_dispatch[SSH2_MSG_CHANNEL_FAILURE] &&
!(ssh->remote_bugs & BUG_CHOKES_ON_WINADJ)) {
pktout = ssh2_pkt_init(SSH2_MSG_CHANNEL_REQUEST);
ssh2_pkt_adduint32(pktout, c->remoteid);
ssh2_pkt_addstring(pktout, "winadj@putty.projects.tartarus.org");