diff options
author | Kevin Steves <stevesk@pobox.com> | 2001-01-14 00:35:19 +0000 |
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committer | Kevin Steves <stevesk@pobox.com> | 2001-01-14 00:35:19 +0000 |
commit | 886b06ce67f9fda0121ec4a3875970bc2316e780 (patch) | |
tree | 8a6a34933214016240fe1b75407ef99d775c44be /bsd-getgrouplist.c | |
parent | 2f959b4cd1d1afcd241d7ffa06a34646c0c89969 (diff) |
- (stevesk) initial work for OpenBSD "support supplementary group in
{Allow,Deny}Groups" patch:
- import getgrouplist.c from OpenBSD (bsd-getgrouplist.c)
- add bsd-getgrouplist.h
- new files groupaccess.[ch]
- build but don't use yet (need to merge auth.c changes)
Diffstat (limited to 'bsd-getgrouplist.c')
-rw-r--r-- | bsd-getgrouplist.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/bsd-getgrouplist.c b/bsd-getgrouplist.c new file mode 100644 index 000000000..f7a27c339 --- /dev/null +++ b/bsd-getgrouplist.c | |||
@@ -0,0 +1,103 @@ | |||
1 | /* | ||
2 | * Copyright (c) 1991, 1993 | ||
3 | * The Regents of the University of California. All rights reserved. | ||
4 | * | ||
5 | * Redistribution and use in source and binary forms, with or without | ||
6 | * modification, are permitted provided that the following conditions | ||
7 | * are met: | ||
8 | * 1. Redistributions of source code must retain the above copyright | ||
9 | * notice, this list of conditions and the following disclaimer. | ||
10 | * 2. Redistributions in binary form must reproduce the above copyright | ||
11 | * notice, this list of conditions and the following disclaimer in the | ||
12 | * documentation and/or other materials provided with the distribution. | ||
13 | * 3. All advertising materials mentioning features or use of this software | ||
14 | * must display the following acknowledgement: | ||
15 | * This product includes software developed by the University of | ||
16 | * California, Berkeley and its contributors. | ||
17 | * 4. Neither the name of the University nor the names of its contributors | ||
18 | * may be used to endorse or promote products derived from this software | ||
19 | * without specific prior written permission. | ||
20 | * | ||
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | ||
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | ||
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
31 | * SUCH DAMAGE. | ||
32 | */ | ||
33 | |||
34 | #include "includes.h" | ||
35 | |||
36 | #ifndef HAVE_GETGROUPLIST | ||
37 | |||
38 | #if defined(LIBC_SCCS) && !defined(lint) | ||
39 | static char rcsid[] = "$OpenBSD: getgrouplist.c,v 1.7 1997/08/19 19:13:27 deraadt Exp $"; | ||
40 | #endif /* LIBC_SCCS and not lint */ | ||
41 | |||
42 | /* | ||
43 | * get credential | ||
44 | */ | ||
45 | #include <sys/types.h> | ||
46 | #include <string.h> | ||
47 | #include <grp.h> | ||
48 | |||
49 | int | ||
50 | getgrouplist(uname, agroup, groups, grpcnt) | ||
51 | const char *uname; | ||
52 | gid_t agroup; | ||
53 | register gid_t *groups; | ||
54 | int *grpcnt; | ||
55 | { | ||
56 | register struct group *grp; | ||
57 | register int i, ngroups; | ||
58 | int ret, maxgroups; | ||
59 | int bail; | ||
60 | |||
61 | ret = 0; | ||
62 | ngroups = 0; | ||
63 | maxgroups = *grpcnt; | ||
64 | |||
65 | /* | ||
66 | * install primary group | ||
67 | */ | ||
68 | if (ngroups >= maxgroups) { | ||
69 | *grpcnt = ngroups; | ||
70 | return (-1); | ||
71 | } | ||
72 | groups[ngroups++] = agroup; | ||
73 | |||
74 | /* | ||
75 | * Scan the group file to find additional groups. | ||
76 | */ | ||
77 | setgrent(); | ||
78 | while ((grp = getgrent())) { | ||
79 | if (grp->gr_gid == agroup) | ||
80 | continue; | ||
81 | for (bail = 0, i = 0; bail == 0 && i < ngroups; i++) | ||
82 | if (groups[i] == grp->gr_gid) | ||
83 | bail = 1; | ||
84 | if (bail) | ||
85 | continue; | ||
86 | for (i = 0; grp->gr_mem[i]; i++) { | ||
87 | if (!strcmp(grp->gr_mem[i], uname)) { | ||
88 | if (ngroups >= maxgroups) { | ||
89 | ret = -1; | ||
90 | goto out; | ||
91 | } | ||
92 | groups[ngroups++] = grp->gr_gid; | ||
93 | break; | ||
94 | } | ||
95 | } | ||
96 | } | ||
97 | out: | ||
98 | endgrent(); | ||
99 | *grpcnt = ngroups; | ||
100 | return (ret); | ||
101 | } | ||
102 | |||
103 | #endif /* HAVE_GETGROUPLIST */ | ||