Documentation Archive Developer
Search
ADC Home > Reference Library > Reference > Mac OS X > Mac OS X Man Pages

 

This document is a Mac OS X manual page. Manual pages are a command-line technology for providing documentation. You can view these manual pages locally using the man(1) command. These manual pages come from many different sources, and thus, have a variety of writing styles.

For more information about the manual page format, see the manual page for manpages(5).



SETRUID(3)               BSD Library Functions Manual               SETRUID(3)

NAME
     setruid, setrgid -- set user and group ID

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <unistd.h>

     int
     setruid(uid_t ruid);

     int
     setrgid(gid_t rgid);

DESCRIPTION
     The setruid() function (setrgid()) sets the real user ID (group ID) of
     the current process.

RETURN VALUES
     Upon successful completion, the value 0 is returned; otherwise the
     value -1 is returned and the global variable errno is set to indicate the
     error.

ERRORS
     The functions fail if:

     [EPERM]            The user is not the super user and the ID specified is
                        not the real or effective ID.

COMPATIBILITY
     The use of these calls is not portable.  Their use is discouraged; they
     will be removed in the future.

SEE ALSO
     getgid(2), getuid(2), setegid(2), seteuid(2), setgid(2), setuid(2)

HISTORY
     The setruid() and setrgid() syscalls appeared in 4.2BSD and were dropped
     in 4.4BSD.

BSD                              June 2, 1993                              BSD