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initgroups.c revision 1.9 
      1  1.9      jtc /*	$NetBSD: initgroups.c,v 1.9 1995/05/13 06:58:22 jtc Exp $	*/
      2  1.8      cgd 
      3  1.1      cgd /*
      4  1.5  mycroft  * Copyright (c) 1983, 1993
      5  1.5  mycroft  *	The Regents of the University of California.  All rights reserved.
      6  1.1      cgd  *
      7  1.1      cgd  * Redistribution and use in source and binary forms, with or without
      8  1.1      cgd  * modification, are permitted provided that the following conditions
      9  1.1      cgd  * are met:
     10  1.1      cgd  * 1. Redistributions of source code must retain the above copyright
     11  1.1      cgd  *    notice, this list of conditions and the following disclaimer.
     12  1.1      cgd  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.1      cgd  *    notice, this list of conditions and the following disclaimer in the
     14  1.1      cgd  *    documentation and/or other materials provided with the distribution.
     15  1.1      cgd  * 3. All advertising materials mentioning features or use of this software
     16  1.1      cgd  *    must display the following acknowledgement:
     17  1.1      cgd  *	This product includes software developed by the University of
     18  1.1      cgd  *	California, Berkeley and its contributors.
     19  1.1      cgd  * 4. Neither the name of the University nor the names of its contributors
     20  1.1      cgd  *    may be used to endorse or promote products derived from this software
     21  1.1      cgd  *    without specific prior written permission.
     22  1.1      cgd  *
     23  1.1      cgd  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  1.1      cgd  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  1.1      cgd  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  1.1      cgd  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  1.1      cgd  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  1.1      cgd  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  1.1      cgd  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  1.1      cgd  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  1.1      cgd  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  1.1      cgd  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  1.1      cgd  * SUCH DAMAGE.
     34  1.1      cgd  */
     35  1.1      cgd 
     36  1.1      cgd #if defined(LIBC_SCCS) && !defined(lint)
     37  1.8      cgd #if 0
     38  1.8      cgd static char sccsid[] = "@(#)initgroups.c	8.1 (Berkeley) 6/4/93";
     39  1.8      cgd #else
     40  1.9      jtc static char rcsid[] = "$NetBSD: initgroups.c,v 1.9 1995/05/13 06:58:22 jtc Exp $";
     41  1.8      cgd #endif
     42  1.1      cgd #endif /* LIBC_SCCS and not lint */
     43  1.1      cgd 
     44  1.1      cgd #include <sys/param.h>
     45  1.5  mycroft 
     46  1.1      cgd #include <stdio.h>
     47  1.9      jtc #include <unistd.h>
     48  1.1      cgd 
     49  1.1      cgd int
     50  1.1      cgd initgroups(uname, agroup)
     51  1.1      cgd 	const char *uname;
     52  1.1      cgd 	int agroup;
     53  1.1      cgd {
     54  1.5  mycroft 	int groups[NGROUPS], ngroups;
     55  1.1      cgd 
     56  1.5  mycroft 	ngroups = NGROUPS;
     57  1.5  mycroft 	if (getgrouplist(uname, agroup, groups, &ngroups) < 0)
     58  1.7      jtc 		_warnx("%s is in too many groups, using first %d",
     59  1.5  mycroft 		    uname, ngroups);
     60  1.1      cgd 	if (setgroups(ngroups, groups) < 0) {
     61  1.7      jtc 		_warn("setgroups");
     62  1.1      cgd 		return (-1);
     63  1.1      cgd 	}
     64  1.1      cgd 	return (0);
     65  1.1      cgd }
     66