1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28/*	  All Rights Reserved  	*/
29
30/*
31 *  These routines are based on the standard UNIX stdio popen/pclose
32 *  routines. This version takes an argv[][] argument instead of a string
33 *  to be passed to the shell. The routine execvp() is used to call the
34 *  program, hence the name popenvp() and the argument types.
35 *
36 *  This routine avoids an extra shell completely, along with not having
37 *  to worry about quoting conventions in strings that have spaces,
38 *  quotes, etc.
39 */
40
41#pragma ident	"%Z%%M%	%I%	%E% SMI"
42
43#include <sys/types.h>
44#include "libmail.h"
45#include <signal.h>
46#include <unistd.h>
47#include <wait.h>
48
49pid_t
50systemvp(char *file, char **argv, int resetid)
51{
52	int	status;
53	pid_t	pid, w;
54	void (*istat)(int), (*qstat)(int);
55
56	if ((pid = fork()) == 0) {
57		if (resetid) {
58			(void) setgid(getgid());
59			(void) setuid(getuid());
60		}
61		(void) execvp(file, argv);
62		_exit(127);
63	}
64	istat = signal(SIGINT, SIG_IGN);
65	qstat = signal(SIGQUIT, SIG_IGN);
66	do {
67		w = wait(&status);
68	} while (w != pid && w != (pid_t)-1);
69	(void) signal(SIGINT, istat);
70	(void) signal(SIGQUIT, qstat);
71	return ((w == (pid_t)-1)? w: (pid_t)status);
72}
73