Commit | Line | Data |
---|---|---|
4ce247a6 | 1 | /* initgroups.c 4.4 83/06/17 */ |
a4f42d0e SL |
2 | |
3 | /* | |
4 | * initgroups | |
5 | */ | |
6 | #include <stdio.h> | |
7 | #include <sys/param.h> | |
8 | #include <grp.h> | |
9 | ||
10 | struct group *getgrent(); | |
11 | ||
12 | initgroups(uname, agroup) | |
13 | char *uname; | |
14 | int agroup; | |
15 | { | |
16 | int groups[NGROUPS], ngroups = 0; | |
17 | register struct group *grp; | |
18 | register int i; | |
19 | ||
20 | if (agroup >= 0) | |
21 | groups[ngroups++] = agroup; | |
22 | setgrent(); | |
0fb3f429 SL |
23 | while (grp = getgrent()) { |
24 | if (grp->gr_gid == agroup) | |
25 | continue; | |
a4f42d0e SL |
26 | for (i = 0; grp->gr_mem[i]; i++) |
27 | if (!strcmp(grp->gr_mem[i], uname)) { | |
a4f42d0e | 28 | if (ngroups == NGROUPS) { |
0fb3f429 | 29 | fprintf(stderr, "initgroups: %s is in too many groups\n", uname); |
a4f42d0e SL |
30 | goto toomany; |
31 | } | |
7479b5d0 | 32 | groups[ngroups++] = grp->gr_gid; |
a4f42d0e | 33 | } |
0fb3f429 | 34 | } |
a4f42d0e | 35 | toomany: |
4ce247a6 | 36 | endgrent(); |
a4f42d0e | 37 | if (setgroups(ngroups, groups) < 0) { |
0fb3f429 | 38 | perror("setgroups"); |
a4f42d0e SL |
39 | return (1); |
40 | } | |
41 | return (0); | |
42 | } |