1 /*-
2  * Copyright (c) 2013 The FreeBSD Foundation
3  * All rights reserved.
4  *
5  * This software was developed by Pawel Jakub Dawidek under sponsorship from
6  * the FreeBSD Foundation.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #ifndef	_CAP_GRP_H_
31 #define	_CAP_GRP_H_
32 
33 #ifdef HAVE_CASPER
34 #define WITH_CASPER
35 #endif
36 
37 #include <sys/cdefs.h>
38 
39 #ifdef WITH_CASPER
40 __BEGIN_DECLS
41 
42 struct group *cap_getgrent(cap_channel_t *chan);
43 struct group *cap_getgrnam(cap_channel_t *chan, const char *name);
44 struct group *cap_getgrgid(cap_channel_t *chan, gid_t gid);
45 
46 int cap_getgrent_r(cap_channel_t *chan, struct group *grp, char *buffer,
47     size_t bufsize, struct group **result);
48 int cap_getgrnam_r(cap_channel_t *chan, const char *name, struct group *grp,
49     char *buffer, size_t bufsize, struct group **result);
50 int cap_getgrgid_r(cap_channel_t *chan, gid_t gid, struct group *grp,
51     char *buffer, size_t bufsize, struct group **result);
52 
53 int cap_setgroupent(cap_channel_t *chan, int stayopen);
54 int cap_setgrent(cap_channel_t *chan);
55 void cap_endgrent(cap_channel_t *chan);
56 
57 int cap_grp_limit_cmds(cap_channel_t *chan, const char * const *cmds,
58     size_t ncmds);
59 int cap_grp_limit_fields(cap_channel_t *chan, const char * const *fields,
60     size_t nfields);
61 int cap_grp_limit_groups(cap_channel_t *chan, const char * const *names,
62     size_t nnames, const gid_t *gids, size_t ngids);
63 
64 __END_DECLS
65 
66 #else
67 #define	cap_getgrent(chan)		getgrent()
68 #define	cap_getgrnam(chan, name)	getgrnam(name)
69 #define	cap_getgrgid(chan, gid)		getgrgid(gid)
70 
71 #define	cap_setgroupent(chan, stayopen) etgroupent(stayopen)
72 #define endgrent(chan)			endgrent()
73 static inline int
74 cap_setgrent(cap_channel_t *chan __unused)
75 {
76 
77 	setgrent();
78 	return(0);
79 }
80 
81 #define	cap_getgrent_r(chan, grp, buffer, bufsize, result)			\
82 	getgrent_r(grp, buffer, bufsize, result)
83 #define	cap_getgrnam_r(chan, name, grp, buffer, bufsize, result)		\
84 	getgrnam_r(name, grp, buffer, bufsize, result)
85 #define	cap_getgrgid_r(chan, gid, grp, buffer, bufsize, result)			\
86 	getgrgid_r(gid, grp, buffer, bufsize, result)
87 
88 #define	cap_grp_limit_cmds(chan, cmds, ncmds)			(0)
89 #define	cap_grp_limit_fields(chan, fields, nfields)		(0)
90 #define	cap_grp_limit_groups(chan, names, nnames, gids, ngids)	(0)
91 
92 #endif
93 
94 #endif	/* !_CAP_GRP_H_ */
95