setregid(2)                                           setregid(2)



NAME
     setregid - sets real and effective group ID

SYNOPSIS
     int setregid(rgid,egid)
     int rgid, egid;

DESCRIPTION
     The real and effective group ID's of the current process are
     set to the arguments.  Only the superuser may change the
     real group ID of a process.  Unprivileged users may change
     the effective group ID to the real group ID, but to no
     other.

     Supplying a value of -1 for either the real or effective
     group ID forces the system to substitute the current ID in
     place of the -1 parameter.

STATUS MESSAGES AND VALUES
     Upon successful completion, a value of 0 is returned.
     Otherwise, a value of -1 is returned and errno is set to
     indicate the error.

     The error message for this command follows:

     EPERM
          The current process is not the superuser and a change
          other than changing the effective group ID to the real
          group ID was specified.

NOTES
     This call only works in COMPAT_BSDPROT compatibility mode.

SEE ALSO
     getgid(2), setcompat(2), setreuid(2), setgid(3)




















January 1992                                                    1