DIR(4)                               SysV                               DIR(4)



NAME
     dir - format of directories

SYNOPSIS
     #include <sys/fs/s5dir.h>

DESCRIPTION
     (This format is obsolete.  We provide this header file only for backward
     compatibility.  You should use directory(3X) in new programs, which
     assumes the structure in <dirent.h>.)

     A directory behaves exactly like an ordinary file, save that no user may
     write into a directory.  The fact that a file is a directory is indicated
     by a bit in the flag word of its inode entry.  The structure of a
     directory entry as given in the include file is:

          #ifndef DIRSIZ
          #define DIRSIZ  32
          #endif
          struct  direct
          {
                  short   d_type;             /* 1=file, 3=link */
                  short   d_len;              /* non-blank chars in name */
                  char    d_name[DIRSIZ];     /* name text */
                  ino_t   d_ino;              /* "i-node" # */
                  dev_t   d_dev;              /* "dev" # */
          };

     By convention, the first two entries in each directory are for dot (.)
     and dot-dot (..).  The first is an entry for the directory itself.  The
     second is for the parent directory.  The meaning of ".."  is modified for
     the root directory of the master file system; there is no parent, so ".."
     has the same meaning as ".".

SEE ALSO
     directory(3x).