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authordjm <djm@openbsd.org>2016-04-29 08:07:53 +0000
committerdjm <djm@openbsd.org>2016-04-29 08:07:53 +0000
commitc01c3b24e6888a5533e8e29bc3aec4616a6c4183 (patch)
tree768f6b96690f90d15afff3766561e05bd9c2d862 /usr.bin/ssh/ssh.c
parentWhen a group contains a non-existent user, make the warning (diff)
downloadwireguard-openbsd-c01c3b24e6888a5533e8e29bc3aec4616a6c4183.tar.xz
wireguard-openbsd-c01c3b24e6888a5533e8e29bc3aec4616a6c4183.zip
close ControlPersist background process stderr when not in
debug mode or when logging to a file or syslog. bz#1988 ok dtucker
Diffstat (limited to 'usr.bin/ssh/ssh.c')
-rw-r--r--usr.bin/ssh/ssh.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/usr.bin/ssh/ssh.c b/usr.bin/ssh/ssh.c
index ec8a5150f9d..623a611597d 100644
--- a/usr.bin/ssh/ssh.c
+++ b/usr.bin/ssh/ssh.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssh.c,v 1.437 2016/03/07 19:02:43 djm Exp $ */
+/* $OpenBSD: ssh.c,v 1.438 2016/04/29 08:07:53 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -1346,7 +1346,7 @@ static void
control_persist_detach(void)
{
pid_t pid;
- int devnull;
+ int devnull, keep_stderr;
debug("%s: backgrounding master process", __func__);
@@ -1377,8 +1377,10 @@ control_persist_detach(void)
error("%s: open(\"/dev/null\"): %s", __func__,
strerror(errno));
} else {
+ keep_stderr = log_is_on_stderr() && debug_flag;
if (dup2(devnull, STDIN_FILENO) == -1 ||
- dup2(devnull, STDOUT_FILENO) == -1)
+ dup2(devnull, STDOUT_FILENO) == -1 ||
+ (!keep_stderr && dup2(devnull, STDERR_FILENO) == -1))
error("%s: dup2: %s", __func__, strerror(errno));
if (devnull > STDERR_FILENO)
close(devnull);