Add usage().
This commit is contained in:
parent
885dbf9c1f
commit
7be91299b0
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=28099
@ -30,7 +30,7 @@
|
||||
.\" SUCH DAMAGE.
|
||||
.\"
|
||||
.\" @(#)su.1 8.2 (Berkeley) 4/18/94
|
||||
.\" $Id: su.1,v 1.7 1997/02/22 19:57:15 peter Exp $
|
||||
.\" $Id: su.1,v 1.8 1997/02/24 20:32:23 guido Exp $
|
||||
.\"
|
||||
.\" this is for hilit19's braindeadness: "
|
||||
.Dd April 18, 1994
|
||||
@ -40,7 +40,7 @@
|
||||
.Nm su
|
||||
.Nd substitute user identity
|
||||
.Sh SYNOPSIS
|
||||
.Nm su
|
||||
.Nm
|
||||
.Op Fl Kflm
|
||||
.Op Ar login Op Ar args
|
||||
.Sh DESCRIPTION
|
||||
@ -57,7 +57,7 @@ will resort to the local password file to find the password for
|
||||
.Ar login
|
||||
if there is a Kerberos error.
|
||||
If
|
||||
.Nm su
|
||||
.Nm
|
||||
is executed by root, no password is requested and a shell
|
||||
with the appropriate user ID is executed; no additional Kerberos tickets
|
||||
are obtained.
|
||||
@ -115,7 +115,7 @@ is imported from your current environment.
|
||||
Envronment variables may be set or overridden from the login class
|
||||
capabilities database according to the class of the target login.
|
||||
The invoked shell is the target login's, and
|
||||
.Nm su
|
||||
.Nm
|
||||
will change directory to the target login's home directory.
|
||||
Resource limits and session priority are modified to that for the
|
||||
target account's login class.
|
||||
@ -127,7 +127,7 @@ shell (as defined by
|
||||
.Xr getusershell 3 )
|
||||
and the caller's real uid is
|
||||
non-zero,
|
||||
.Nm su
|
||||
.Nm
|
||||
will fail.
|
||||
.El
|
||||
.Pp
|
||||
@ -152,7 +152,7 @@ passing multiple words.
|
||||
Only users listed in group 0 (normally
|
||||
.Dq wheel )
|
||||
can
|
||||
.Nm su
|
||||
.Nm
|
||||
to
|
||||
.Dq root ,
|
||||
unless this group is empty.
|
||||
@ -185,7 +185,7 @@ Provides terminal type which may be retained for the substituted
|
||||
user ID.
|
||||
.It Ev USER
|
||||
The user ID is always the effective ID (the target user ID) after an
|
||||
.Nm su
|
||||
.Nm
|
||||
unless the user ID is 0 (root).
|
||||
.El
|
||||
.Sh EXAMPLES
|
||||
|
@ -38,11 +38,11 @@ static const char copyright[] =
|
||||
#endif /* not lint */
|
||||
|
||||
#ifndef lint
|
||||
/*
|
||||
#if 0
|
||||
static char sccsid[] = "@(#)su.c 8.3 (Berkeley) 4/2/94";
|
||||
*/
|
||||
#endif
|
||||
static const char rcsid[] =
|
||||
"$Id: su.c,v 1.19 1997/03/29 04:32:40 imp Exp $";
|
||||
"$Id: su.c,v 1.20 1997/05/10 19:01:32 davidn Exp $";
|
||||
#endif /* not lint */
|
||||
|
||||
#include <sys/param.h>
|
||||
@ -89,6 +89,7 @@ int use_kerberos = 1;
|
||||
|
||||
char *ontty __P((void));
|
||||
int chshell __P((char *));
|
||||
static void usage __P((void));
|
||||
|
||||
int
|
||||
main(argc, argv)
|
||||
@ -142,10 +143,8 @@ main(argc, argv)
|
||||
break;
|
||||
case '?':
|
||||
default:
|
||||
(void)fprintf(stderr, "usage: su [%s] [login]\n",
|
||||
ARGSTR);
|
||||
exit(1);
|
||||
}
|
||||
usage();
|
||||
}
|
||||
else
|
||||
{
|
||||
user = argv[optind++];
|
||||
@ -402,6 +401,13 @@ main(argc, argv)
|
||||
err(1, "%s", shell);
|
||||
}
|
||||
|
||||
static void
|
||||
usage()
|
||||
{
|
||||
(void)fprintf(stderr, "usage: su [%s] [login [args]]\n", ARGSTR);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
int
|
||||
chshell(sh)
|
||||
char *sh;
|
||||
|
Loading…
Reference in New Issue
Block a user