NAME
setgroups —
set group access list
SYNOPSIS
#include
<sys/param.h>
#include <unistd.h>
int
setgroups(int
ngroups, const gid_t
*gidset);
DESCRIPTION
Setgroups()
sets the group access list of the current user process according 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 address space.
SEE ALSO
HISTORY
The setgroups function call appeared in
4.2BSD.