SETGROUPS(2) BSD Programmer's Manual SETGROUPS(2)NAMEsetgroups - set group access list
SYNOPSIS
#include <sys/param.h>
#include <unistd.h>
int
setgroups(int ngroups, const gid_t *gidset);
DESCRIPTIONSetgroups() sets the group access list of the current user process ac-
cording to the array gidset. The parameter ngroups indicates the number
of entries in the array and must be no more than NGROUPS, as defined in
<sys/param.h>.
Only the super-user may set new groups.
RETURN VALUES
A 0 value is returned on success, -1 on error, with an error code stored
in errno.
ERRORS
The setgroups() call will fail if:
[EPERM] The caller is not the super-user.
[EFAULT] The address specified for gidset is outside the process ad-
dress space.
SEE ALSOgetgroups(2), initgroups(3)HISTORY
The setgroups function call appeared in 4.2BSD.
4.2 Berkeley Distribution April 16, 1994 1