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Annotation of 43BSDTahoe/new/news/src/ndir.h, revision 1.1

1.1     ! root        1: /*     @(#)ndir.h      1.7     10/7/87 */
        !             2: #if defined(HP9K5)
        !             3: /* He should have included it instead of this, but prevent confusion */
        !             4: #include <ndir.h>
        !             5: #else /* other */
        !             6: #ifndef DEV_BSIZE
        !             7: #define        DEV_BSIZE       512
        !             8: #endif
        !             9: #define DIRBLKSIZ      DEV_BSIZE
        !            10: #define        MAXNAMLEN       255
        !            11: 
        !            12: struct direct {
        !            13:        long    d_ino;                  /* inode number of entry */
        !            14:        short   d_reclen;               /* length of this record */
        !            15:        short   d_namlen;               /* length of string in d_name */
        !            16:        char    d_name[MAXNAMLEN + 1];  /* name must be no longer than this */
        !            17: };
        !            18: 
        !            19: /*
        !            20:  * The DIRSIZ macro gives the minimum record length which will hold
        !            21:  * the directory entry.  This requires the amount of space in struct direct
        !            22:  * without the d_name field, plus enough space for the name with a terminating
        !            23:  * null byte (dp->d_namlen+1), rounded up to a 4 byte boundary.
        !            24:  */
        !            25: 
        !            26: #ifdef DIRSIZ
        !            27: #undef DIRSIZ
        !            28: #endif /* DIRSIZ */
        !            29: #define DIRSIZ(dp) \
        !            30:     ((sizeof (struct direct) - (MAXNAMLEN+1)) + (((dp)->d_namlen+1 + 3) &~ 3))
        !            31: 
        !            32: /*
        !            33:  * Definitions for library routines operating on directories.
        !            34:  */
        !            35: typedef struct _dirdesc {
        !            36:        int     dd_fd;
        !            37:        long    dd_loc;
        !            38:        long    dd_size;
        !            39:        char    dd_buf[DIRBLKSIZ];
        !            40: } DIR;
        !            41: #ifndef NULL
        !            42: #define NULL 0
        !            43: #endif
        !            44: extern DIR *opendir();
        !            45: extern struct direct *readdir();
        !            46: extern void closedir();
        !            47: 
        !            48: #define rewinddir(dirp)        seekdir((dirp), (long)0)
        !            49: #endif /* other */

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