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15637ed4 RG |
1 | /* |
2 | * Copyright (c) 1980 Regents of the University of California. | |
3 | * 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 | #ifndef lint | |
35 | char copyright[] = | |
36 | "@(#) Copyright (c) 1980 Regents of the University of California.\n\ | |
37 | All rights reserved.\n"; | |
38 | #endif /* not lint */ | |
39 | ||
40 | #ifndef lint | |
41 | static char sccsid[] = "@(#)groups.c 5.4 (Berkeley) 6/1/90"; | |
42 | #endif /* not lint */ | |
43 | ||
44 | /* | |
45 | * groups | |
46 | */ | |
47 | ||
48 | #include <sys/param.h> | |
49 | #include <grp.h> | |
50 | #include <pwd.h> | |
51 | #include <stdio.h> | |
52 | ||
53 | int groups[NGROUPS]; | |
54 | ||
55 | main(argc, argv) | |
56 | int argc; | |
57 | char *argv[]; | |
58 | { | |
59 | int ngroups, i; | |
60 | char *sep = ""; | |
61 | struct group *gr; | |
62 | ||
63 | if (argc > 1) | |
64 | showgroups(argv[1]); | |
65 | ngroups = getgroups(NGROUPS, groups); | |
66 | for (i = 0; i < ngroups; i++) { | |
67 | gr = getgrgid(groups[i]); | |
68 | if (gr == NULL) | |
69 | printf("%s%d", sep, groups[i]); | |
70 | else | |
71 | printf("%s%s", sep, gr->gr_name); | |
72 | sep = " "; | |
73 | } | |
74 | printf("\n"); | |
75 | exit(0); | |
76 | } | |
77 | ||
78 | showgroups(user) | |
79 | register char *user; | |
80 | { | |
81 | register struct group *gr; | |
82 | register struct passwd *pw; | |
83 | register char **cp; | |
84 | char *sep = ""; | |
85 | ||
86 | if ((pw = getpwnam(user)) == NULL) { | |
87 | fprintf(stderr, "groups: no such user.\n"); | |
88 | exit(1); | |
89 | } | |
90 | while (gr = getgrent()) { | |
91 | if (pw->pw_gid == gr->gr_gid) { | |
92 | printf("%s%s", sep, gr->gr_name); | |
93 | sep = " "; | |
94 | continue; | |
95 | } | |
96 | for (cp = gr->gr_mem; cp && *cp; cp++) | |
97 | if (strcmp(*cp, user) == 0) { | |
98 | printf("%s%s", sep, gr->gr_name); | |
99 | sep = " "; | |
100 | break; | |
101 | } | |
102 | } | |
103 | printf("\n"); | |
104 | exit(0); | |
105 | } |