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CHDIR(2)		       System Calls Manual			CHDIR(2)

NAME
     chdir, fchdir -- change current working directory

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <unistd.h>

     int
     chdir(const char *path);

     int
     fchdir(int fd);

DESCRIPTION
     The  path argument points to the pathname of a directory.	The chdir() sys-
     tem call causes the named directory to become the	current  working  direc-
     tory, that is, the starting point for path searches of pathnames not begin-
     ning with a slash, `/'.

     The  fchdir()  system  call causes the directory referenced by fd to become
     the current working directory, the starting  point  for  path  searches  of
     pathnames not beginning with a slash, `/'.

     In  order	for  a directory to become the current directory, a process must
     have execute (search) access to the directory.

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 chdir() system call will fail and the current working directory will be
     unchanged if one or more of the following are true:

     [ENOTDIR]		A component of the path prefix is not a directory.

     [ENAMETOOLONG]	A component of a pathname exceeded 255 characters, or an
			entire path name exceeded 1023 characters.

     [ENOENT]		The named directory does not exist.

     [ELOOP]		Too many symbolic links were encountered in  translating
			the pathname.

     [EACCES]		Search	permission  is	denied	for any component of the
			path name.

     [EFAULT]		The path argument points outside the process's allocated
			address space.

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

     [EINTEGRITY]	Corrupted  data was detected while reading from the file
			system.

     The fchdir() system call will fail and the current working  directory  will
     be unchanged if one or more of the following are true:

     [EACCES]		Search permission is denied for the directory referenced
			by the file descriptor.

     [ENOTDIR]		The file descriptor does not reference a directory.

     [EBADF]		The argument fd is not a valid file descriptor.

SEE ALSO
     chroot(2)

STANDARDS
     The  chdir()  system  call  is  expected  to conform to ISO/IEC 9945-1:1990
     ("POSIX.1").

HISTORY
     The chdir() system call appeared in Version 1 AT&T UNIX.  The fchdir() sys-
     tem call appeared in 4.2BSD.

FreeBSD ports 15.1		 March 30, 2020 			CHDIR(2)

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