4.3BSD-Reno/share/man/cat2/setregid.0

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SETREGID(2)		      1990		      SETREGID(2)



NNAAMMEE
     setregid - set real and effective group ID

SSYYNNOOPPSSIISS
     sseettrreeggiidd((rrggiidd,, eeggiidd))
     iinntt rrggiidd,, eeggiidd;;

DDEESSCCRRIIPPTTIIOONN
     The real and effective group ID's of the current process are
     set to the arguments.  Unprivileged users may change the
     real group ID to the effective group ID and vice-versa; only
     the super-user may make other changes.

     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.

RREETTUURRNN VVAALLUUEE
     Upon successful completion, a value of 0 is returned.  Oth-
     erwise, a value of -1 is returned and _e_r_r_n_o is set to indi-
     cate the error.

EERRRROORRSS
     [EPERM]	    The current process is not the super-user and
		    a change other than changing the effective
		    group-id to the real group-id was specified.

SSEEEE AALLSSOO
     getgid(2), setreuid(2), setgid(3)


























Printed 7/27/90               June				1