Man page - fchdir(2)

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Manual

chdir

NAME
LIBRARY
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
STANDARDS
HISTORY
NOTES
SEE ALSO

NAME

chdir, fchdir - change working directory

LIBRARY

Standard C library ( libc , -lc )

SYNOPSIS

#include <unistd.h>

int chdir(const char * path );
int fchdir(int fd );

Feature Test Macro Requirements for glibc (see feature_test_macros (7)):

fchdir ():
_XOPEN_SOURCE >= 500
|| /* Since glibc 2.12: */ _POSIX_C_SOURCE >= 200809L
|| /* glibc up to and including 2.19: */ _BSD_SOURCE

DESCRIPTION

chdir () changes the current working directory of the calling process to the directory specified in path .

fchdir () is identical to chdir (); the only difference is that the directory is given as an open file descriptor.

RETURN VALUE

On success, zero is returned. On error, -1 is returned, and errno is set to indicate the error.

ERRORS

Depending on the filesystem, other errors can be returned. The more general errors for chdir () are listed below:

	EACCES		Search permission is denied for one of the components of path . (See also path_resolution (7).)
	EFAULT		path points outside your accessible address space.
	EIO		An I/O error occurred.
	ELOOP		Too many symbolic links were encountered in resolving path .

ENAMETOOLONG

path is too long.

	ENOENT		The directory specified in path does not exist.
	ENOMEM		Insufficient kernel memory was available.

ENOTDIR

A component of path is not a directory.

The general errors for fchdir () are listed below:

	EACCES		Search permission was denied on the directory open on fd .
	EBADF		fd is not a valid file descriptor.

ENOTDIR

fd does not refer to a directory.

STANDARDS

POSIX.1-2008.

HISTORY

POSIX.1-2001, SVr4, 4.4BSD.

NOTES

The current working directory is the starting point for interpreting relative pathnames (those not starting with '/').

A child process created via fork (2) inherits its parent’s current working directory. The current working directory is left unchanged by execve (2).