CHDIR(2)                                                 CHDIR(2)

     NAME
          chdir, chroot - change default directory

     SYNOPSIS
          chdir(dirname)
          char *dirname;

          chroot(dirname)
          char *dirname;

     DESCRIPTION
          Dirname is the address of the pathname of a directory, ter-
          minated by a null byte.  Chdir causes this directory to
          become the current working directory, the starting point for
          path names not beginning with `/'.

          Chroot sets the root directory, the starting point for path
          names beginning with `/'.  The call is restricted to the
          super-user.

     SEE ALSO
          cd(1)

     DIAGNOSTICS
          Zero is returned if the directory is changed; -1 is returned
          if the given name is not that of a directory or is not
          searchable.

     ASSEMBLER
          (chdir = 12.)
          sys chdir; dirname

          (chroot = 61.)
          sys chroot; dirname