/*
* Automated Testing Framework (atf)
*
* Copyright (c) 2007 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include <sys/param.h>
#include <sys/types.h>
#include <limits.h>
#include <unistd.h>

#include "sanity.h"
#include "user.h"

/* ---------------------------------------------------------------------
* Free functions.
* --------------------------------------------------------------------- */

uid_t
atf_user_euid(void)
{
   return geteuid();
}

bool
atf_user_is_member_of_group(gid_t gid)
{
   static gid_t groups[NGROUPS_MAX];
   static int ngroups = -1;
   bool found;
   int i;

   if (ngroups == -1) {
       ngroups = getgroups(NGROUPS_MAX, groups);
       INV(ngroups >= 0);
   }

   found = false;
   for (i = 0; !found && i < ngroups; i++)
       if (groups[i] == gid)
           found = true;
   return found;
}

bool
atf_user_is_root(void)
{
   return geteuid() == 0;
}

bool
atf_user_is_unprivileged(void)
{
   return geteuid() != 0;
}