4.3BSD-UWisc/man/cat2/setreuid.2

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SETREUID(2)         UNIX Programmer's Manual          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 _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.

RETURN VALUE
     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.

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)





























Printed 12/27/86           May 9, 1985                          1