#include <sys/types.h> | |
#include <unistd.h> | |
#include <grp.h> | |
#include <limits.h> | |
int getgrouplist(const char *, gid_t, gid_t *, int *); | |
int setgroups(size_t, const gid_t *); | |
int initgroups(const char *user, gid_t gid) | |
{ | |
gid_t groups[NGROUPS_MAX]; | |
int count = NGROUPS_MAX; | |
if (getgrouplist(user, gid, groups, &count) < 0) return -1; | |
return setgroups(count, groups); | |
} |