setreuid(2)                                           setreuid(2)



NAME
     setreuid - set real and effective user ID

SYNOPSIS
     int 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.  Only the superuser
     may modify the real uid of a process.  Users other than the
     superuser may change the effective uid of a process only to
     the real user ID.

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 user ID to the real
          user ID was specified.

NOTES
     This call only works in COMPAT_BSDPROT compatibility mode.

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























January 1992                                                    1