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, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 1988 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#pragma ident	"%Z%%M%	%I%	%E% SMI"
32
33#include "uucp.h"
34
35/*
36 * use shell to execute command with
37 * fi, fo, and fe as standard input/output/error
38 *	cmd 	-> command to execute
39 *	fi 	-> standard input
40 *	fo 	-> standard output
41 *	fe 	-> standard error
42 * return:
43 *	0		-> success
44 *	non zero	-> failure  -  status from child
45			(Note - -1 means the fork failed)
46 */
47int
48shio(cmd, fi, fo, fe)
49char *cmd, *fi, *fo, *fe;
50{
51	register pid_t pid, ret;
52	int status;
53
54	if (fi == NULL)
55		fi = "/dev/null";
56	if (fo == NULL)
57		fo = "/dev/null";
58	if (fe == NULL)
59		fe = "/dev/null";
60
61	DEBUG(3, "shio - %s\n", cmd);
62	if ((pid = fork()) == 0) {
63		(void) signal(SIGINT, SIG_IGN);
64		(void) signal(SIGHUP, SIG_IGN);
65		(void) signal(SIGQUIT, SIG_IGN);
66		ucloselog();
67		(void) close(Ifn);	/* close connection fd's */
68		(void) close(Ofn);
69		(void) close(0);	/* get stdin from file fi */
70		if (open(fi, 0) != 0)
71			exit(errno);
72		(void) close(1);	/* divert stdout to fo */
73		if (creat(fo, PUB_FILEMODE) != 1)
74			exit(errno);
75		(void) close(2);	/* divert stderr to fe */
76		if (creat(fe, PUB_FILEMODE) != 2)
77			exit(errno);
78		(void) execle(SHELL, "sh", "-c", cmd, (char *) 0, Env);
79		exit(100);
80	}
81
82	/*
83	 * the status returned from wait can never be -1
84	 * see man page wait(2)
85	 * So we use the -1 value to indicate fork failed
86	 * or the wait failed.
87	 */
88	if (pid == -1)
89		return(-1);
90
91	while ((ret = wait(&status)) != pid)
92	    if (ret == -1 && errno != EINTR)
93		return(-1);
94	DEBUG(3, "status %d\n", status);
95	return(status);
96}
97