This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface

       None.

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1-2017, Standard
       for  Information  Technology  --  Portable  Operating  System  Interface  (POSIX),  The  Open  Group Base
       Specifications Issue 7, 2018 Edition, Copyright (C) 2018 by the Institute of Electrical  and  Electronics
       Engineers, Inc and The Open Group.  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.opengroup.org/unix/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 .

IEEE/The Open Group                                   2017                                        FCHDIR(3POSIX)

       The  fchdir()  function  shall  be  equivalent to chdir() except that the directory that is to be the new
       current working directory is specified by the file descriptor fildes.

       A conforming application can obtain a file descriptor for a file of type directory using open(), provided
       that the file status flags and access modes do not contain O_WRONLY or O_RDWR.

       The fchdir() function shall fail if:

       EACCES Search permission is denied for the directory referenced by fildes.

       EBADF  The fildes argument is not an open file descriptor.

       ENOTDIR
              The open file descriptor fildes does not refer to a directory.

       The fchdir() may fail if:

       EINTR  A signal was caught during the execution of fchdir().

       EIO    An I/O error occurred while reading from or writing to the file system.

       Thefollowingsectionsareinformative.

       None.

       None.

       fchdir — change working directory

       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.

       None.

       Upon successful completion, fchdir() shall return 0. Otherwise, it shall  return  -1  and  set  errno  to
       indicate the error. On failure the current working directory shall remain unchanged.

chdir(), dirfd()

       The Base Definitions volume of POSIX.1‐2017, <unistd.h>

       #include <unistd.h>

       int fchdir(int fildes);