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- markus@cvs.openbsd.org 2008/05/09 16:17:51 

[channels.c]
     error-fd race: don't enable the error fd in the select bitmask
     for channels with both in- and output closed, since the channel
     will go away before we call select();
     report, lots of debugging help and ok djm@
This commit is contained in:
Damien Miller 2008-05-19 16:05:41 +10:00
parent 2ff1ca56eb
commit d654dd27b5
2 changed files with 10 additions and 3 deletions
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8
ChangeLog
View File

@ -127,6 +127,12 @@
a SIGPIPE when the forked program does a write.
ok djm@
(Id sync only, USE_PIPES never left portable OpenSSH)
- markus@cvs.openbsd.org 2008/05/09 16:17:51
[channels.c]
error-fd race: don't enable the error fd in the select bitmask
for channels with both in- and output closed, since the channel
will go away before we call select();
report, lots of debugging help and ok djm@
20080403
- (djm) [openbsd-compat/bsd-poll.c] Include stdlib.h to avoid compile-
@ -3987,4 +3993,4 @@
OpenServer 6 and add osr5bigcrypt support so when someone migrates
passwords between UnixWare and OpenServer they will still work. OK dtucker@
$Id: ChangeLog,v 1.4928 2008/05/19 06:04:56 djm Exp $
$Id: ChangeLog,v 1.4929 2008/05/19 06:05:41 djm Exp $

5
channels.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: channels.c,v 1.276 2008/05/09 04:55:56 djm Exp $ */
/* $OpenBSD: channels.c,v 1.277 2008/05/09 16:17:51 markus Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -819,7 +819,8 @@ channel_pre_open(Channel *c, fd_set *readset, fd_set *writeset)
}
}
/** XXX check close conditions, too */
if (compat20 && c->efd != -1) {
if (compat20 && c->efd != -1 &&
!(c->istate == CHAN_INPUT_CLOSED && c->ostate == CHAN_OUTPUT_CLOSED)) {
if (c->extended_usage == CHAN_EXTENDED_WRITE &&
buffer_len(&c->extended) > 0)
FD_SET(c->efd, writeset);