dir.h

早期freebsd实现

/* GNU Emacs VMS directory definition file.
   Copyright (C) 1986 Free Software Foundation, Inc.

This file is part of GNU Emacs.

GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 1, or (at your option)
any later version.

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING.  If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */

/*
 * Files-11 Ver. 2 directory structure (VMS V4.x - long names)
 */
#ifndef DIR$K_LENGTH

#define	DIR$C_FID	0
#define	DIR$C_LINKNAME	1
#define	DIR$K_LENGTH	6
#define	DIR$C_LENGTH	6
#define	DIR$S_DIRDEF	6
#define	DIR$W_SIZE	0
#define	DIR$W_VERLIMIT	2
#define	DIR$B_FLAGS	4
#define	DIR$S_TYPE	3
#define	DIR$V_TYPE	0
#define	DIR$V_NEXTREC	6
#define	DIR$V_PREVREC	7
#define	DIR$B_NAMECOUNT	5
#define	DIR$S_NAME	80
#define	DIR$T_NAME	6

#define	DIR$K_VERSION	8
#define	DIR$C_VERSION	8
#define	DIR$S_DIRDEF1	8
#define	DIR$W_VERSION	0
#define	DIR$S_FID	6
#define	DIR$W_FID	2
#define	DIR$W_FID_NUM	2
#define	DIR$W_FID_SEQ	4
#define	DIR$W_FID_RVN	6
#define	DIR$B_FID_RVN	6
#define	DIR$B_FID_NMX	7

#define	DIR$S_DIRDEF2	1
#define	DIR$T_LINKNAME	0

typedef struct dir$_name {
/*  short dir$w_size;		/* if you read with RMS, it eats this... */
  short dir$w_verlimit;			/* maximum number of versions */
  union {
    unsigned char dir_b_flags;
#define dir$b_flags dir__b_flags.dir_b_flags
    struct {
      unsigned char dir_v_type: DIR$S_TYPE;
#define dir$v_type dir__b_flags.dir___b_flags.dir_v_type
      unsigned char: 3;
      unsigned char dir_v_nextrec: 1;
#define dir$v_nextrec dir__b_flags.dir___b_flags.dir_v_nextrec
      unsigned char dir_v_prevrec: 1;
#define dir$v_prevrec dir__b_flags.dir___b_flags.dir_v_prevrec
    } dir___b_flags;
  } dir__b_flags;
  unsigned char dir$b_namecount;
  char dir$t_name[];
} dir$_dirdef;		/* only the fixed first part */

typedef struct dir$_version {
  short dir$w_version;
  short dir$w_fid_num;
  short dir$w_fid_seq;
  union {
    short dir_w_fid_rvn;
#define dir$w_fid_rvn dir__w_fid_rvn.dir_w_fid_rvn
    struct {
      char dir_b_fid_rvn;
#define dir$b_fid_rvn dir__w_fid_rvn.dir___w_fid_rvn.dir_b_fid_rvn
      char dir_b_fid_nmx;
#define dir$b_fid_nmx dir__w_fid_rvn.dir___w_fid_rvn.dir_b_fid_nmx
    } dir___w_fid_rvn;
  } dir__w_fid_rvn;
} dir$_dirdef1;		/* one for each version of the file */

typedef
struct dir$_linkname {
  char    dir$t_linkname[];
} dir$_dirdef2;

#endif