Add -y option to force logging via syslog rather than stderr.

Useful for daemonised ssh connection (ssh -f). Patch originally from
and ok'd by markus@

2 files changed, 17 insertions, 8 deletions

diff --git a/usr.bin/ssh/ssh.1 b/usr.bin/ssh/ssh.1
index 1883578f226..c8cd2136cad 100644
--- a/usr.bin/ssh/ssh.1
+++ b/usr.bin/ssh/ssh.1
@@ -34,8 +34,8 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.\" $OpenBSD: ssh.1,v 1.277 2008/07/02 13:47:39 djm Exp $
-.Dd $Mdocdate: July 2 2008 $
+.\" $OpenBSD: ssh.1,v 1.278 2008/10/08 23:34:03 djm Exp $
+.Dd $Mdocdate: October 8 2008 $
 .Dt SSH 1
 .Os
 .Sh NAME
@@ -43,7 +43,7 @@
 .Nd OpenSSH SSH client (remote login program)
 .Sh SYNOPSIS
 .Nm ssh
-.Op Fl 1246AaCfgKkMNnqsTtVvXxY
+.Op Fl 1246AaCfgKkMNnqsTtVvXxYy
 .Op Fl b Ar bind_address
 .Op Fl c Ar cipher_spec
 .Oo Fl D\ \&
@@ -658,6 +658,11 @@ Disables X11 forwarding.
 Enables trusted X11 forwarding.
 Trusted X11 forwardings are not subjected to the X11 SECURITY extension
 controls.
+.It Fl y
+Send log information using the
+.Xr syslog 3
+system module.
+By default this information is sent to stderr.
 .El
 .Pp
 .Nm
diff --git a/usr.bin/ssh/ssh.c b/usr.bin/ssh/ssh.c
index 42e6da01e98..a0c3841bad8 100644
--- a/usr.bin/ssh/ssh.c
+++ b/usr.bin/ssh/ssh.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssh.c,v 1.319 2008/09/11 14:22:37 markus Exp $ */
+/* $OpenBSD: ssh.c,v 1.320 2008/10/08 23:34:03 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -195,7 +195,7 @@ void muxserver_listen(void);
 int
 main(int ac, char **av)
 {
-	int i, opt, exit_status;
+	int i, opt, exit_status, use_syslog;
 	char *p, *cp, *line, buf[256];
 	struct stat st;
 	struct passwd *pw;
@@ -256,10 +256,11 @@ main(int ac, char **av)
 
 	/* Parse command-line arguments. */
 	host = NULL;
+	use_syslog = 0;
 
  again:
 	while ((opt = getopt(ac, av, "1246ab:c:e:fgi:kl:m:no:p:qstvx"
-	    "ACD:F:I:KL:MNO:PR:S:TVw:XY")) != -1) {
+	    "ACD:F:I:KL:MNO:PR:S:TVw:XYy")) != -1) {
 		switch (opt) {
 		case '1':
 			options.protocol = SSH_PROTO_1;
@@ -286,6 +287,9 @@ main(int ac, char **av)
 		case 'X':
 			options.forward_x11 = 1;
 			break;
+		case 'y':
+			use_syslog = 1;
+			break;
 		case 'Y':
 			options.forward_x11 = 1;
 			options.forward_x11_trusted = 1;
@@ -601,7 +605,7 @@ main(int ac, char **av)
 	 */
 	log_init(av[0],
 	    options.log_level == -1 ? SYSLOG_LEVEL_INFO : options.log_level,
-	    SYSLOG_FACILITY_USER, 1);
+	    SYSLOG_FACILITY_USER, !use_syslog);
 
 	/*
 	 * Read per-user configuration file.  Ignore the system wide config
@@ -627,7 +631,7 @@ main(int ac, char **av)
 	channel_set_af(options.address_family);
 
 	/* reinit */
-	log_init(av[0], options.log_level, SYSLOG_FACILITY_USER, 1);
+	log_init(av[0], options.log_level, SYSLOG_FACILITY_USER, !use_syslog);
 
 	if (options.user == NULL)
 		options.user = xstrdup(pw->pw_name);