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 */
47 int
shio(cmd,fi,fo,fe)48 shio(cmd, fi, fo, fe)
49 char *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