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SETREUID(2)							   SETREUID(2)

NAME
       setreuid - set real and effective user ID's

SYNOPSIS
       setreuid(ruid, euid)
       int ruid, euid;

DESCRIPTION
       The  real  and  effective  user	ID's  of  the  current process are set
       according to the arguments.  If ruid or euid 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.

RETURN VALUE
       Upon  successful	 completion,  a	 value of 0 is returned.  Otherwise, a
       value of -1 is returned and errno is set to indicate the error.

ERRORS
       [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.

SEE ALSO
       getuid(2), setregid(2), setuid(3)

4th Berkeley Distribution	  May 9, 1985			   SETREUID(2)

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