From 2d1f74e6da69b10bb23fa1481c97a989cd32cadf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dag-Erling=20Sm=C3=B8rgrav?= <des@des.no>
Date: Wed, 2 Nov 2011 13:10:25 +0000
Subject: [PATCH] Add a man page, tweak the usage string, remove useless -h
 option.

git-svn-id: svn+ssh://svn.openpam.org/svn/openpam/trunk@458 185d5e19-27fe-0310-9dcf-9bff6b9f3609
---
 bin/su/Makefile.am |  2 ++
 bin/su/su.1        | 62 ++++++++++++++++++++++++++++++++++++++++++++++
 bin/su/su.c        |  5 ++--
 3 files changed, 66 insertions(+), 3 deletions(-)
 create mode 100644 bin/su/su.1

diff --git a/bin/su/Makefile.am b/bin/su/Makefile.am
index c93c2d6..11c3f16 100644
--- a/bin/su/Makefile.am
+++ b/bin/su/Makefile.am
@@ -5,3 +5,5 @@ INCLUDES = -I$(top_srcdir)/include
 bin_PROGRAMS = su
 su_SOURCES = su.c
 su_LDADD = $(top_builddir)/lib/libpam.la
+
+dist_man1_MANS = su.1
diff --git a/bin/su/su.1 b/bin/su/su.1
new file mode 100644
index 0000000..ec81fe6
--- /dev/null
+++ b/bin/su/su.1
@@ -0,0 +1,62 @@
+.\"-
+.\" Copyright (c) 2011 Dag-Erling Smørgrav
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $Id$
+.\"
+.Dd November 2, 2011
+.Dt SU 1
+.Os
+.Sh NAME
+.Nm su
+.Nd switch user identity
+.Sh SYNOPSYS
+.Nm
+.Op Ar login Op Ar ...
+.Sh DESCRIPTION
+The
+.Nm
+utility starts a shell under the identity of the user specified by the
+first argument on the command line.
+If no user is specified, the default is
+.Dq root .
+.Pp
+Any additional command-line arguments are passed as-is to the shell.
+.Pp
+The requesting user is authenticated using the
+.Dq su
+PAM policy.
+.Sh IMPLEMENTATION NOTES
+The
+.Nm
+utility is provided with the OpenPAM library as a sample application
+and should not be used in production systems.
+.Sh SEE ALSO
+.Xr openpam 3
+.Xr pam 3
+.Sh AUTHORS
+The
+.Nm
+utility and this manual page were written by
+.An Dag-Erling Sm\(/orgrav Aq des@FreeBSD.org .
diff --git a/bin/su/su.c b/bin/su/su.c
index 93a689b..204b07e 100644
--- a/bin/su/su.c
+++ b/bin/su/su.c
@@ -63,7 +63,7 @@ static void
 usage(void)
 {
 
-	fprintf(stderr, "Usage: su [login [args]]\n");
+	fprintf(stderr, "usage: su [login [args]]\n");
 	exit(1);
 }
 
@@ -78,9 +78,8 @@ main(int argc, char *argv[])
 	int o, pam_err, status;
 	pid_t pid;
 
-	while ((o = getopt(argc, argv, "h")) != -1)
+	while ((o = getopt(argc, argv, "")) != -1)
 		switch (o) {
-		case 'h':
 		default:
 			usage();
 		}