- (dtucker) [channels.c configure.ac serverloop.c] Bug #1102: Around AIX

   4.3.3 ML3 or so, the AIX pty layer starting passing zero-length writes
   on the pty slave as zero-length reads on the pty master, which sshd
   interprets as the descriptor closing.  Since most things don't do zero
   length writes this rarely matters, but occasionally it happens, and when
   it does the SSH pty session appears to hang, so we add a special case for
   this condition.  ok djm@

1 files changed, 3 insertions, 2 deletions

diff --git a/configure.ac b/configure.ac
index c3cb68f28..259b5c288 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-# $Id: configure.ac,v 1.340 2006/06/23 11:05:13 dtucker Exp $
+# $Id: configure.ac,v 1.341 2006/06/23 11:24:13 dtucker Exp $
 #
 # Copyright (c) 1999-2004 Damien Miller
 #
@@ -15,7 +15,7 @@
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 AC_INIT(OpenSSH, Portable, openssh-unix-dev@mindrot.org)
-AC_REVISION($Revision: 1.340 $)
+AC_REVISION($Revision: 1.341 $)
 AC_CONFIG_SRCDIR([ssh.c])
 
 AC_CONFIG_HEADER(config.h)
@@ -190,6 +190,7 @@ case "$host" in
                 supported by bsd-setproctitle.c])
         AC_DEFINE(SSHPAM_CHAUTHTOK_NEEDS_RUID, 1,
             [AIX 5.2 and 5.3 (and presumably newer) require this])
+        AC_DEFINE(PTY_ZEROREAD, 1, [read(1) can return 0 for a non-closed fd])
         ;;
 *-*-cygwin*)
         check_for_libcrypt_later=1