chdir(2)                                                 chdir(2)



NAME
     chdir, fchdir - change working directory

SYNOPSIS
     #include <unistd.h>

     int chdir(path)
     char *path;

     int fchdir(fildes)
     int fildes;

DESCRIPTION
     chdir and fchdir cause a directory pointed to by path or
     fildes to become the current working directory, the starting
     point for path searches for path names not beginning with /.
     path points to the path name of a directory.  The fildes
     argument to fchdir is an open file descriptor of a direc-
     tory.

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

     chdir 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 any com-
                         ponent of the path name.

     EFAULT              path points outside the allocated
                         address space of the process.

     ELOOP               Too many symbolic links were encountered
                         in translating path.

     ENAMETOOLONG        The length of the path argument exceeds
                         {PATH_MAX}, or the length of a path com-
                         ponent exceeds {NAME_MAX} while
                         _POSIX_NO_TRUNC is in effect.

     ENOTDIR             A component of the path name is not a
                         directory.

     ENOENT              Either a component of the path prefix or
                         the directory named by path does not
                         exist or is a null pathname.

     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 fildes.




Page 1                        CX/UX Programmer's Reference Manual

chdir(2)                                                 chdir(2)



     EBADF               fildes is not an open file descriptor.

     ENOTDIR             The open file descriptor fildes does not
                         refer to a directory.

SEE ALSO
     chroot(2).

DIAGNOSTICS
     Upon successful completion, a value of zero is returned.
     Otherwise, a value of -1 is returned and errno is set to
     indicate the error.











































Page 2                        CX/UX Programmer's Reference Manual