SETGROUPS(2) BSD System Calls Manual SETGROUPS(2)

NAME
     sseettggrroouuppss - set group access list

SYNOPSIS
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     ##iinncclluuddee <>

     int
     sseettggrroouuppss(int ngroups, const gidt *gidset);

DESCRIPTION
     SSeettggrroouuppss() sets the group access list of the current user process
     according to the array gidset.  The parameter ngroups indicates the num-
     ber of entries in the array and must be no more than {NGROUPSMAX}.

     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.

EERRRROORRSS
     The sseettggrroouuppss() call will fail if:

     [EINVAL]           The value of ngroups is greater than {NGROUPSMAX}.

     [EPERM]            The caller is not the super-user.

     [EFAULT]           The address specified for gidset is outside the
                        process address space.

SEE ALSO
     getgroups(2), initgroups(3)

HISTORY     The sseettggrroouuppss() function call appeared in 4.2BSD.

4.2 Berkeley Distribution       April 16, 1994       4.2 Berkeley Distribution