Skip to content

Instantly share code, notes, and snippets.

What would you like to do?
#include <unistd.h>
int getgroups(int gidsetsize, gid_t grouplist[]);
/* Returns: number of supplementary group IDs if OK, −1 on error */
#include <grp.h> /* on Linux */
#include <unistd.h> /* on FreeBSD, Mac OS X, and Solaris */
int setgroups(int ngroups, const gid_t grouplist[]);
#include <grp.h> /* on Linux and Solaris */
#include <unistd.h> /* on FreeBSD and Mac OS X */
int initgroups(const char *username, gid_t basegid);
/* Both return: 0 if OK, −1 on error */
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment