SETREUID(2)             COMMAND REFERENCE             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 to ruid and euid. If ruid or euid is -1, the current
     user ID is filled in by the system.  Only the super-user may
     modify the real user ID of a process.  Users other than the
     super-user may change the effective user ID of a process
     only to the real user ID.

DIAGNOSTICS
     [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.

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.

SEE ALSO
     getuid(2), setregid(2), and setuid(3c).




























Printed 4/6/89                                                  1

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