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      1 /*
      2  * Automated Testing Framework (atf)
      3  *
      4  * Copyright (c) 2007 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
     17  * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
     18  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
     23  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
     25  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     26  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
     27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #include <sys/param.h>
     31 #include <sys/types.h>
     32 #include <limits.h>
     33 #include <unistd.h>
     34 
     35 #include "sanity.h"
     36 #include "user.h"
     37 
     38 /* ---------------------------------------------------------------------
     39  * Free functions.
     40  * --------------------------------------------------------------------- */
     41 
     42 uid_t
     43 atf_user_euid(void)
     44 {
     45     return geteuid();
     46 }
     47 
     48 bool
     49 atf_user_is_member_of_group(gid_t gid)
     50 {
     51     static gid_t groups[NGROUPS_MAX];
     52     static int ngroups = -1;
     53     bool found;
     54     int i;
     55 
     56     if (ngroups == -1) {
     57         ngroups = getgroups(NGROUPS_MAX, groups);
     58         INV(ngroups >= 0);
     59     }
     60 
     61     found = false;
     62     for (i = 0; !found && i < ngroups; i++)
     63         if (groups[i] == gid)
     64             found = true;
     65     return found;
     66 }
     67 
     68 bool
     69 atf_user_is_root(void)
     70 {
     71     return geteuid() == 0;
     72 }
     73 
     74 bool
     75 atf_user_is_unprivileged(void)
     76 {
     77     return geteuid() != 0;
     78 }
     79