lib/glob/ndir.h

   1 /* <dir.h> -- definitions for 4.2BSD-compatible directory access.
   2    last edit:   09-Jul-1983     D A Gwyn. */
   3
   4 #if defined (VMS)
   5 #  if !defined (FAB$C_BID)
   6 #    include <fab.h>
   7 #  endif
   8 #  if !defined (NAM$C_BID)
   9 #    include <nam.h>
  10 #  endif
  11 #  if !defined (RMS$_SUC)
  12 #    include <rmsdef.h>
  13 #  endif
  14 #  include "dir.h"
  15 #endif /* VMS */
  16
  17 /* Size of directory block. */
  18 #define DIRBLKSIZ 512
  19
  20 /* NOTE:  MAXNAMLEN must be one less than a multiple of 4 */
  21
  22 #if defined (VMS)
  23 #  define MAXNAMLEN (DIR$S_NAME + 7)    /* 80 plus room for version #.  */
  24 #  define MAXFULLSPEC NAM$C_MAXRSS      /* Maximum full spec */
  25 #else
  26 #  define MAXNAMLEN 15                  /* Maximum filename length. */
  27 #endif /* VMS */
  28
  29 /* Data from readdir (). */
  30 struct direct {
  31   long d_ino;                   /* Inode number of entry. */
  32   unsigned short d_reclen;      /* Length of this record. */
  33   unsigned short d_namlen;      /* Length of string in d_name. */
  34   char d_name[MAXNAMLEN + 1];   /* Name of file. */
  35 };
  36
  37 /* Stream data from opendir (). */
  38 typedef struct {
  39   int dd_fd;                    /* File descriptor. */
  40   int dd_loc;                   /* Offset in block. */
  41   int dd_size;                  /* Amount of valid data. */
  42   char  dd_buf[DIRBLKSIZ];      /* Directory block. */
  43 } DIR;
  44
  45 extern DIR *opendir ();
  46 extern struct direct *readdir ();
  47 extern long telldir ();
  48 extern void seekdir (), closedir ();
  49
  50 #define rewinddir(dirp) seekdir (dirp, 0L)