chdir man page on 4.4BSD

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CHDIR(2)		    BSD System Calls Manual		      CHDIR(2)

NAME
     chdir, fchdir — change current working directory

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()
     function causes the named directory to become the current working direc‐
     tory, that is, the starting point for path searches of pathnames not
     beginning with a slash, ‘/’.

     The fchdir() function causes the directory referenced by fd to become the
     current working directory, the starting point for path searches of path‐
     names 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, a value of 0 is returned.  Otherwise, a value
     of -1 is returned and errno is set to indicate the error.

ERRORS
     Chdir() 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.

     [EINVAL]		The pathname contains a character with the high-order
			bit set.

     [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 translat‐
			ing the pathname.

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

     [EFAULT]		Path points outside the process's allocated address
			space.

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

     Fchdir() 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 refer‐
			enced 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
     Chdir() is expected to conform to IEEE Std 1003.1-1988 (“POSIX”).

HISTORY
     The fchdir() function call appeared in 4.2BSD.

4th Berkeley Distribution      December 11, 1993     4th Berkeley Distribution
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