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getgroups.c File Reference

Print out the gids of all groups for the current user. More...

Go to the source code of this file.

Functions

int main (int argc, char *argv[])

Detailed Description

Print out the gids of all groups for the current user.

This is like `id -G` on Linux, but it's too hard to find a portable equivalent.

Definition in file getgroups.c.

Function Documentation

int main (  int    argc,
char *    argv[]
) 
 

Definition at line 34 of file getgroups.c. 

00035 {
00036         int n, i;
00037         gid_t list[NGROUPS];
00038 
00039         if ((n = getgroups(NGROUPS, list)) == -1) {
00040                 perror("getgroups");
00041                 return 1;
00042         }
00043 
00044         for (i = 0; i < n; i++) 
00045                 printf("%u ", list[i]);
00046         printf("\n");
00047                 
00048         return 0;
00049 }

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