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System Calls                                             chdir(2)



NAME
     chdir, fchdir - change working directory

SYNOPSIS
     #include <unistd.h>

     int chdir(const char *path);

     int fchdir(int fildes);

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

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

RETURN VALUES
     Upon successful completion, 0 is returned. Otherwise, -1  is
     returned,  the  current  working directory is unchanged, and
     errno is set to indicate the error.

ERRORS
     The chdir() function will fail if:

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

     EFAULT
           The path argument points to an illegal address.

     EINTR A signal  was  caught  during  the  execution  of  the
           chdir() function.

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

     ELOOP Too many symbolic links were encountered in  translat-
           ing path.

     ENAMETOOLONG
           The length of the path argument exceeds  PATH_MAX,  or
           the  length of a path component exceeds NAME_MAX while
           _POSIX_NO_TRUNC is in effect.

     ENOENT
           Either a component of the path prefix or the directory



SunOS 5.9           Last change: 28 Dec 1996                    1






System Calls                                             chdir(2)



           named by path does not exist or is a null pathname.

     ENOLINK
           The path argument points to a remote machine  and  the
           link to that machine is no longer active.

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

     The fchdir() function will fail if:

     EACCES
           Search permission is denied for fildes.

     EBADF The fildes argument is not an open file descriptor.

     EINTR A signal  was  caught  during  the  execution  of  the
           fchdir() function.

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

     ENOLINK
           The fildes argument points to a remote machine and the
           link to that machine is no longer active.

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

ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | MT-Level                    | chdir() is Async-Signal-Safe|
    |_____________________________|_____________________________|


SEE ALSO
     chroot(2), attributes(5)












SunOS 5.9           Last change: 28 Dec 1996                    2