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CHDIR(2)		    BSD	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()
     function causes the named directory to become the current working direc-
     tory, that	is, the	starting point for path	searches of pathnames not be-
     ginning 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.

     [ENAMETOOLONG]	A component of a pathname exceeded {NAME_MAX} charac-
			ters, or an entire path	name exceeded {PATH_MAX} char-
			acters.

     [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.

     [EPERM]		The argument fd	references a directory which is	not at
			or below the current process's root directory.

SEE ALSO
     chroot(2)

STANDARDS
     The chdir() function conforms to ISO/IEC 9945-1:1990 ("POSIX.1").

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

BSD			       December	11, 1993			   BSD

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO | STANDARDS | HISTORY

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