Manpages - fchdir.3p

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.

fchdir — change working directory

  #include <unistd.h>
  int fchdir(int fildes);

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.

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.

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.

The following sections are informative.

None.

None.

None.

None.

/chdir ( )/, /dirfd ( )/

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

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 .

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