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22e155fc DF |
1 | /* |
2 | * Copyright (c) 1980 Regents of the University of California. | |
25875f65 KB |
3 | * All rights reserved. |
4 | * | |
c0567266 KB |
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. | |
22e155fc DF |
32 | */ |
33 | ||
34 | #ifndef lint | |
35 | char copyright[] = | |
36 | "@(#) Copyright (c) 1980 Regents of the University of California.\n\ | |
37 | All rights reserved.\n"; | |
25875f65 | 38 | #endif /* not lint */ |
22e155fc | 39 | |
476fcd16 | 40 | #ifndef lint |
1c15e888 | 41 | static char sccsid[] = "@(#)groups.c 5.4 (Berkeley) 6/1/90"; |
25875f65 | 42 | #endif /* not lint */ |
90aff665 BJ |
43 | |
44 | /* | |
45 | * groups | |
46 | */ | |
47 | ||
48 | #include <sys/param.h> | |
49 | #include <grp.h> | |
50 | #include <pwd.h> | |
6c905009 | 51 | #include <stdio.h> |
90aff665 | 52 | |
933c83d0 | 53 | int groups[NGROUPS]; |
90aff665 BJ |
54 | |
55 | main(argc, argv) | |
56 | int argc; | |
57 | char *argv[]; | |
58 | { | |
a15fc49a | 59 | int ngroups, i; |
90aff665 | 60 | char *sep = ""; |
a15fc49a | 61 | struct group *gr; |
90aff665 | 62 | |
a15fc49a SL |
63 | if (argc > 1) |
64 | showgroups(argv[1]); | |
a43be079 SL |
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 | } | |
90aff665 BJ |
74 | printf("\n"); |
75 | exit(0); | |
76 | } | |
a15fc49a SL |
77 | |
78 | showgroups(user) | |
79 | register char *user; | |
80 | { | |
81 | register struct group *gr; | |
6c905009 | 82 | register struct passwd *pw; |
a15fc49a SL |
83 | register char **cp; |
84 | char *sep = ""; | |
85 | ||
6c905009 | 86 | if ((pw = getpwnam(user)) == NULL) { |
25875f65 | 87 | fprintf(stderr, "groups: no such user.\n"); |
6c905009 SL |
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; | |
25875f65 | 95 | } |
a15fc49a SL |
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 | } | |
6c905009 | 102 | } |
a15fc49a SL |
103 | printf("\n"); |
104 | exit(0); | |
105 | } |