xref: /titanic_41/usr/src/lib/libpkg/common/pkgexecl.c (revision ea394cb00fd96864e34d2841b4a22357b621c78f)
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 2004 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 #include <stdio.h>
32 #include <errno.h>
33 #include <string.h>
34 #include <stdlib.h>
35 #include <unistd.h>
36 #include <stdarg.h>
37 #include <wait.h>
38 #include <signal.h>
39 #include <sys/types.h>
40 #include <sys/stat.h>
41 #include <pwd.h>
42 #include <grp.h>
43 #include <fcntl.h>
44 #include "pkglocale.h"
45 #include "pkglibmsgs.h"
46 #include "pkglib.h"
47 
48 #define	MAXARGS	64
49 
50 /*VARARGS4*/
51 int
52 pkgexecl(char *filein, char *fileout, char *uname, char *gname, ...)
53 {
54 	char		*arg[MAXARGS+1];
55 	char		*pt;
56 	int		n;
57 	va_list		ap;
58 
59 	/* construct arg[] array from varargs passed in */
60 
61 	va_start(ap, gname);
62 
63 	n = 0;
64 	while ((pt = va_arg(ap, char *)) != NULL) {
65 		if (n >= MAXARGS) {
66 			va_end(ap);
67 			progerr(pkg_gt(ERR_TOO_MANY_ARGS),
68 				arg[0] ? arg[0] : "??");
69 			return (-1);
70 		}
71 		arg[n++] = pt;
72 	}
73 
74 	arg[n] = NULL;
75 	va_end(ap);
76 
77 	/* return results of executing command based on arg[] list */
78 
79 	return (pkgexecv(filein, fileout, uname, gname, arg));
80 }
81