usr/src/lib/libpkg/common/pkgexecl.c

   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 }