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SETREUID(2)	    UNIX Programmer's Manual	      SETREUID(2)



[1mNAME
     [0msetreuid - set real and effective user ID's

[1mSYNOPSIS
     setreuid(ruid, euid)
     int ruid, euid;

DESCRIPTION
     [0mThe real and effective user ID's of the current process are
     set according to the arguments.  If _r_u_i_d or _e_u_i_d is -1, the
     current uid is filled in by the system.  Unprivileged users
     may change the real user ID to the effective user ID and
     vice-versa; only the super-user may make other changes.

[1mRETURN VALUE
     [0mUpon 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.

[1mERRORS
     [0m[EPERM]	    The current process is not the super-user and
		    a change other than changing the effective
		    user-id to the real user-id was specified.

[1mSEE ALSO
     [0mgetuid(2), setregid(2), setuid(3)





























Printed 9/3/93	    Revision 1.2 of 19/10/88			1



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