71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
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/* $NetBSD: getgrouplist.c,v 1.22 2008/04/28 20:22:59 martin Exp $ */
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/*-
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* Copyright (c) 2004-2005 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Luke Mewburn.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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#if 0
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static char sccsid[] = "@(#)getgrouplist.c 8.2 (Berkeley) 12/8/94";
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#else
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__RCSID("$NetBSD: getgrouplist.c,v 1.22 2008/04/28 20:22:59 martin Exp $");
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#endif
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#endif /* LIBC_SCCS and not lint */
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/*
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* calculate group access list
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*/
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#include "namespace.h"
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#include <sys/param.h>
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#include <assert.h>
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#include <nsswitch.h>
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#include <stdarg.h>
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#include <unistd.h>
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#ifdef __weak_alias
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__weak_alias(getgrouplist,_getgrouplist)
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#endif
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int
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getgrouplist(const char *uname, gid_t agroup, gid_t *groups, int *grpcnt)
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{
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int rv, groupc;
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_DIAGASSERT(uname != NULL);
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/* groups may be NULL if just sizing when invoked with *grpcnt = 0 */
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_DIAGASSERT(grpcnt != NULL);
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groupc = 0;
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rv = getgroupmembership(uname, agroup, groups, *grpcnt, &groupc);
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*grpcnt = groupc; /* set groupc to the actual # of groups */
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return rv;
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}
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