Re: Bug in pty re-usage

Matthias Urlichs (smurf@smurf.noris.de)
Sat, 28 Sep 1996 06:38:13 +0100

In linux.dev.kernel, article <9609261958.ZM572@DrJES.EDnet.NS.Ca>,
James MacLean <macleajb@ednet.ns.ca> writes:
>
> As another example that way relate to this... I have found that when using ppp
> over ssh, that if the connection comes up with a bunch of errors, that
> switching to a different pty seems to fix it.
>
That's a different problem. Packet mode is left turned on sometimes.

As a workaround until the kernel gets fixed, install this patch:

Index: security/ssh/pty.c
diff -u security/ssh/pty.c:1.1.1.2 security/ssh/pty.c:1.5
--- security/ssh/pty.c:1.1.1.2 Wed Jul 31 15:33:41 1996
+++ security/ssh/pty.c Wed Aug 28 10:19:33 1996
@@ -243,6 +243,12 @@
continue;
sprintf(namebuf, "/dev/tty%c%c", ptymajors[i / num_minors],
ptyminors[i % num_minors]);
+#ifdef TIOCPKT
+ {
+ int i = 0;
+ ioctl(*ptyfd, TIOCPKT, &i);
+ }
+#endif

#ifdef HAVE_REVOKE
if (revoke(namebuf) == -1)

-- 
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