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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <grp.h>
#include <stdlib.h>
#include <stropts.h>
#include <sys/acl.h>
#include <libdevinfo.h>
#define DEFAULT_TTY_GROUP "tty"
/*
* 1) change the owner and mode of the pseudo terminal slave device.
* 2) (re)create nodes and devlinks for pseduo terminal slave device.
*/
int
main(int argc, char **argv)
{
int fd;
gid_t gid;
char *tty;
di_devlink_handle_t pp;
struct group *gr_name_ptr;
if (argc > 2)
return (1);
if ((gr_name_ptr = getgrnam(DEFAULT_TTY_GROUP)) != NULL)
gid = gr_name_ptr->gr_gid;
else
gid = getgid();
/* create pts minor device nodes and symlinks */
if (argc == 1) {
pp = di_devlink_init("pts", DI_MAKE_LINK);
if (pp != NULL) {
(void) di_devlink_fini(&pp);
return (0);
}
return (1);
}
fd = atoi(argv[1]);
tty = ptsname(fd);
if (tty == NULL)
return (1);
/*
* Detach all STREAMs.
* We need to continue to try this until we have succeeded
* in calling chown on the underlying node. From that point
* onwards, no-one but root can fattach() as fattach() requires
* ownership of the node.
*/
do {
if (chown(tty, 0, 0) != 0)
exit(1);
} while (fdetach(tty) == 0);
/* Remove ACLs */
(void) acl_strip(tty, 0, gid, 0620);
if (chown(tty, getuid(), gid))
return (1);
if (chmod(tty, 00620))
return (1);
return (0);
}
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