upstream Don't reset signal handlers inside handlers.

The signal handlers from the original ssh1 code on which OpenSSH
is based assume unreliable signals and reinstall their handlers.
Since OpenBSD (and pretty much every current system) has reliable
signals this is not needed.  In the unlikely even that -portable
is still being used on such systems we will deal with it in the
compat layer.  ok deraadt@

OpenBSD-Commit-ID: f53a1015cb6908431b92116130d285d71589612c

1 files changed, 1 insertions, 3 deletions

diff --git a/ssh.c b/ssh.c
index af4597f88..c0bdd38bc 100644
--- a/ssh.c
+++ b/ssh.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssh.c,v 1.471 2018/01/23 05:27:21 djm Exp $ */
+/* $OpenBSD: ssh.c,v 1.472 2018/02/11 21:16:56 dtucker Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -2132,7 +2132,5 @@ main_sigchld_handler(int sig)
         while ((pid = waitpid(-1, &status, WNOHANG)) > 0 ||
             (pid < 0 && errno == EINTR))
                 ;
-
-        signal(sig, main_sigchld_handler);
         errno = save_errno;
 }