src/misc/initgroups.c

   1 #define _GNU_SOURCE
   2 #include <grp.h>
   3 #include <limits.h>
   4
   5 int initgroups(const char *user, gid_t gid)
   6 {
   7         gid_t groups[NGROUPS_MAX];
   8         int count = NGROUPS_MAX;
   9         if (getgrouplist(user, gid, groups, &count) < 0) return -1;
  10         return setgroups(count, groups);
  11 }