Annotation of src/usr.bin/ssh/groupaccess.c, Revision 1.3.2.1
1.3.2.1 ! jason 1: /* $OpenBSD: groupaccess.c,v 1.3 2001/01/29 01:58:15 niklas Exp $ */
1.3 niklas 2:
1.1 markus 3: /*
4: * Copyright (c) 2001 Kevin Steves. All rights reserved.
5: *
6: * Redistribution and use in source and binary forms, with or without
7: * modification, are permitted provided that the following conditions
8: * are met:
9: * 1. Redistributions of source code must retain the above copyright
10: * notice, this list of conditions and the following disclaimer.
11: * 2. Redistributions in binary form must reproduce the above copyright
12: * notice, this list of conditions and the following disclaimer in the
13: * documentation and/or other materials provided with the distribution.
14: *
15: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25: */
26:
27: #include "includes.h"
28:
29: #include "groupaccess.h"
30: #include "xmalloc.h"
31: #include "match.h"
1.2 markus 32: #include "log.h"
1.1 markus 33:
34: static int ngroups;
35: static char *groups_byname[NGROUPS_MAX + 1]; /* +1 for base/primary group */
36:
37: int
38: ga_init(const char *user, gid_t base)
39: {
40: gid_t groups_bygid[NGROUPS_MAX + 1];
41: int i, j;
42: struct group *gr;
43:
44: if (ngroups > 0)
45: ga_free();
46:
47: ngroups = sizeof(groups_bygid) / sizeof(gid_t);
48: if (getgrouplist(user, base, groups_bygid, &ngroups) == -1)
49: log("getgrouplist: groups list too small");
50: for (i = 0, j = 0; i < ngroups; i++)
51: if ((gr = getgrgid(groups_bygid[i])) != NULL)
52: groups_byname[j++] = xstrdup(gr->gr_name);
53: return (ngroups = j);
54: }
55:
56: int
57: ga_match(char * const *groups, int n)
58: {
59: int i, j;
60:
61: for (i = 0; i < ngroups; i++)
62: for (j = 0; j < n; j++)
63: if (match_pattern(groups_byname[i], groups[j]))
64: return 1;
65: return 0;
66: }
67:
68: void
69: ga_free(void)
70: {
71: int i;
72:
73: if (ngroups > 0) {
74: for (i = 0; i < ngroups; i++)
75: xfree(groups_byname[i]);
76: ngroups = 0;
77: }
78: }