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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 | |
6 | * provided that this notice is preserved and that due credit is given | |
7 | * to the University of California at Berkeley. The name of the University | |
8 | * may not be used to endorse or promote products derived from this | |
9 | * software without specific prior written permission. This software | |
10 | * is provided ``as is'' without express or implied warranty. | |
22e155fc DF |
11 | */ |
12 | ||
13 | #ifndef lint | |
14 | char copyright[] = | |
15 | "@(#) Copyright (c) 1980 Regents of the University of California.\n\ | |
16 | All rights reserved.\n"; | |
25875f65 | 17 | #endif /* not lint */ |
22e155fc | 18 | |
476fcd16 | 19 | #ifndef lint |
25875f65 KB |
20 | static char sccsid[] = "@(#)groups.c 5.2 (Berkeley) %G%"; |
21 | #endif /* not lint */ | |
90aff665 BJ |
22 | |
23 | /* | |
24 | * groups | |
25 | */ | |
26 | ||
27 | #include <sys/param.h> | |
28 | #include <grp.h> | |
29 | #include <pwd.h> | |
6c905009 | 30 | #include <stdio.h> |
90aff665 | 31 | |
933c83d0 | 32 | int groups[NGROUPS]; |
90aff665 BJ |
33 | |
34 | main(argc, argv) | |
35 | int argc; | |
36 | char *argv[]; | |
37 | { | |
a15fc49a | 38 | int ngroups, i; |
90aff665 | 39 | char *sep = ""; |
a15fc49a | 40 | struct group *gr; |
90aff665 | 41 | |
a15fc49a SL |
42 | if (argc > 1) |
43 | showgroups(argv[1]); | |
a43be079 SL |
44 | ngroups = getgroups(NGROUPS, groups); |
45 | for (i = 0; i < ngroups; i++) { | |
46 | gr = getgrgid(groups[i]); | |
47 | if (gr == NULL) | |
48 | printf("%s%d", sep, groups[i]); | |
49 | else | |
50 | printf("%s%s", sep, gr->gr_name); | |
51 | sep = " "; | |
52 | } | |
90aff665 BJ |
53 | printf("\n"); |
54 | exit(0); | |
55 | } | |
a15fc49a SL |
56 | |
57 | showgroups(user) | |
58 | register char *user; | |
59 | { | |
60 | register struct group *gr; | |
6c905009 | 61 | register struct passwd *pw; |
a15fc49a SL |
62 | register char **cp; |
63 | char *sep = ""; | |
64 | ||
6c905009 | 65 | if ((pw = getpwnam(user)) == NULL) { |
25875f65 | 66 | fprintf(stderr, "groups: no such user.\n"); |
6c905009 SL |
67 | exit(1); |
68 | } | |
69 | while (gr = getgrent()) { | |
70 | if (pw->pw_gid == gr->gr_gid) { | |
71 | printf("%s%s", sep, gr->gr_name); | |
72 | sep = " "; | |
73 | continue; | |
25875f65 | 74 | } |
a15fc49a SL |
75 | for (cp = gr->gr_mem; cp && *cp; cp++) |
76 | if (strcmp(*cp, user) == 0) { | |
77 | printf("%s%s", sep, gr->gr_name); | |
78 | sep = " "; | |
79 | break; | |
80 | } | |
6c905009 | 81 | } |
a15fc49a SL |
82 | printf("\n"); |
83 | exit(0); | |
84 | } |