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22e155fc DF |
1 | /* |
2 | * Copyright (c) 1980 Regents of the University of California. | |
25875f65 KB |
3 | * All rights reserved. |
4 | * | |
5 | * Redistribution and use in source and binary forms are permitted | |
5e8b0e60 KB |
6 | * provided that the above copyright notice and this paragraph are |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
22e155fc DF |
16 | */ |
17 | ||
18 | #ifndef lint | |
19 | char copyright[] = | |
20 | "@(#) Copyright (c) 1980 Regents of the University of California.\n\ | |
21 | All rights reserved.\n"; | |
25875f65 | 22 | #endif /* not lint */ |
22e155fc | 23 | |
476fcd16 | 24 | #ifndef lint |
5e8b0e60 | 25 | static char sccsid[] = "@(#)groups.c 5.3 (Berkeley) %G%"; |
25875f65 | 26 | #endif /* not lint */ |
90aff665 BJ |
27 | |
28 | /* | |
29 | * groups | |
30 | */ | |
31 | ||
32 | #include <sys/param.h> | |
33 | #include <grp.h> | |
34 | #include <pwd.h> | |
6c905009 | 35 | #include <stdio.h> |
90aff665 | 36 | |
933c83d0 | 37 | int groups[NGROUPS]; |
90aff665 BJ |
38 | |
39 | main(argc, argv) | |
40 | int argc; | |
41 | char *argv[]; | |
42 | { | |
a15fc49a | 43 | int ngroups, i; |
90aff665 | 44 | char *sep = ""; |
a15fc49a | 45 | struct group *gr; |
90aff665 | 46 | |
a15fc49a SL |
47 | if (argc > 1) |
48 | showgroups(argv[1]); | |
a43be079 SL |
49 | ngroups = getgroups(NGROUPS, groups); |
50 | for (i = 0; i < ngroups; i++) { | |
51 | gr = getgrgid(groups[i]); | |
52 | if (gr == NULL) | |
53 | printf("%s%d", sep, groups[i]); | |
54 | else | |
55 | printf("%s%s", sep, gr->gr_name); | |
56 | sep = " "; | |
57 | } | |
90aff665 BJ |
58 | printf("\n"); |
59 | exit(0); | |
60 | } | |
a15fc49a SL |
61 | |
62 | showgroups(user) | |
63 | register char *user; | |
64 | { | |
65 | register struct group *gr; | |
6c905009 | 66 | register struct passwd *pw; |
a15fc49a SL |
67 | register char **cp; |
68 | char *sep = ""; | |
69 | ||
6c905009 | 70 | if ((pw = getpwnam(user)) == NULL) { |
25875f65 | 71 | fprintf(stderr, "groups: no such user.\n"); |
6c905009 SL |
72 | exit(1); |
73 | } | |
74 | while (gr = getgrent()) { | |
75 | if (pw->pw_gid == gr->gr_gid) { | |
76 | printf("%s%s", sep, gr->gr_name); | |
77 | sep = " "; | |
78 | continue; | |
25875f65 | 79 | } |
a15fc49a SL |
80 | for (cp = gr->gr_mem; cp && *cp; cp++) |
81 | if (strcmp(*cp, user) == 0) { | |
82 | printf("%s%s", sep, gr->gr_name); | |
83 | sep = " "; | |
84 | break; | |
85 | } | |
6c905009 | 86 | } |
a15fc49a SL |
87 | printf("\n"); |
88 | exit(0); | |
89 | } |