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Annotation of coherent/a/usr/man/COHERENT/dir.h, revision 1.1.1.1

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                      3: dir.h                      Header File                      dir.h
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                      8: Directory format
                      9: 
                     10: #include <dir.h>
                     11: 
                     12: A  COHERENT directory  is exactly like  an ordinary  file, except
                     13: that a  user's process may write on it  only through system calls
                     14: such as creat,  link, mknod, or unlink.  The system distinguishes
                     15: directories from other types of files by the mode word S_IFDIR in
                     16: the i-node.  (For more information on i-nodes, see stat).
                     17: 
                     18: Every directory  is an array  of entries of  the following struc-
                     19: ture, as defined in the header file dir.h:
                     20: 
                     21: 
                     22: #define                  DIRSIZ 14
                     23: 
                     24: struct direct {
                     25:      ino_t d_ino;        /* i-number */
                     26:      char d_name[DIRSIZ];/* name */
                     27: };
                     28: 
                     29: 
                     30: Any entry in which d_ino has a value of zero is unused.
                     31: 
                     32: The command  mkdir creates a directory,  with the convention that
                     33: its first  two entries are `.'  and `..'.  The name  `.' is self-
                     34: referential -- a link to  the directory itself.  The name `..' is
                     35: a link  to the parent directory.  Because  the root directory has
                     36: no parent, its `..' is a link to itself.
                     37: 
                     38: The d_ino entry of the  directory structure is stored in the file
                     39: system in canonical form, as described in canon.h.
                     40: 
                     41: ***** See Also *****
                     42: 
                     43: canon.h, header files, mkdir, stat()
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                     64: COHERENT Lexicon                                           Page 1
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