bionic (3) seteuid.3posix.gz

Provided by: manpages-posix-dev_2013a-2_all bug

PROLOG
       This  manual  page  is part of the POSIX Programmer's Manual.  The Linux implementation of this interface
       may differ (consult the corresponding Linux manual page for details of Linux behavior), or the  interface
       may not be implemented on Linux.


NAME
       seteuid — set effective user ID


SYNOPSIS
       #include <unistd.h>

       int seteuid(uid_t uid);


DESCRIPTION
       If  uid  is  equal  to  the  real  user  ID  or  the saved set-user-ID, or if the process has appropriate
       privileges, seteuid() shall set the effective user ID of the calling process to uid; the real user ID and
       saved set-user-ID shall remain unchanged.

       The seteuid() function shall not affect the supplementary group list in any way.


RETURN VALUE
       Upon  successful  completion,  0  shall  be  returned;  otherwise,  −1 shall be returned and errno set to
       indicate the error.


ERRORS
       The seteuid() function shall fail if:

       EINVAL The value of the uid argument is invalid and is not supported by the implementation.

       EPERM  The process does not have appropriate privileges and uid does not match the real user  ID  or  the
              saved set-user-ID.

       The following sections are informative.


EXAMPLES
       None.


APPLICATION USAGE
       None.


RATIONALE
       Refer to the RATIONALE section in setuid().


FUTURE DIRECTIONS
       None.


SEE ALSO
       exec, getegid(), geteuid(), getgid(), getuid(), setegid(), setgid(), setregid(), setreuid(), setuid()

       The Base Definitions volume of POSIX.1‐2008, <sys_types.h>, <unistd.h>


       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition,
       Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open  Group  Base
       Specifications  Issue 7, Copyright (C) 2013 by the Institute of Electrical and Electronics Engineers, Inc
       and The Open Group.  (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In  the  event
       of  any  discrepancy between this version and the original IEEE and The Open Group Standard, the original
       IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at
       http://www.unix.org/online.html .

       Any  typographical  or formatting errors that appear in this page are most likely to have been introduced
       during  the  conversion  of  the  source  files  to  man  page  format.  To  report  such   errors,   see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .