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Annotation of coherent/e/bin/pax/paxdir.h, revision 1.1

1.1     ! root        1: /*
        !             2:        <dirent.h> -- definitions for SVR3 directory access routines
        !             3: 
        !             4:        last edit:      25-Apr-1987     D A Gwyn
        !             5: 
        !             6:        Prerequisite:   <sys/types.h>
        !             7: */
        !             8: 
        !             9: #ifndef _PAX_DIRENT_H
        !            10: #define _PAX_DIRENT_H
        !            11: 
        !            12: #include "config.h"
        !            13: #ifdef USG
        !            14: #define UFS
        !            15: #else
        !            16: #ifdef BSD
        !            17: #define BFS
        !            18: #endif
        !            19: #endif
        !            20: 
        !            21: struct dirent {                        /* data from getdents()/readdir() */
        !            22:     long               d_ino;          /* inode number of entry */
        !            23:     off_t              d_off;          /* offset of disk directory entry */
        !            24:     unsigned short     d_reclen;       /* length of this record */
        !            25:     char               d_name[1];      /* name of file (non-POSIX) */
        !            26: };
        !            27: 
        !            28: typedef struct {
        !            29:     int                dd_fd;                  /* file descriptor */
        !            30:     int                dd_loc;                 /* offset in block */
        !            31:     int                dd_size;                /* amount of valid data */
        !            32:     char       *dd_buf;                /* -> directory block */
        !            33: } DIR;                                 /* stream data from opendir() */
        !            34: 
        !            35: 
        !            36: /* 
        !            37:  * The following nonportable ugliness could have been avoided by defining
        !            38:  * DIRENTSIZ and DIRENTBASESIZ to also have (struct dirent *) arguments. 
        !            39:  */
        !            40: #define        DIRENTBASESIZ           (((struct dirent *)0)->d_name \
        !            41:                                - (char *)&((struct dirent *)0)->d_ino)
        !            42: #define        DIRENTSIZ( namlen )     ((DIRENTBASESIZ + sizeof(long) + (namlen)) \
        !            43:                                / sizeof(long) * sizeof(long))
        !            44: 
        !            45: #define        MAXNAMLEN 512                   /* maximum filename length */
        !            46: 
        !            47: #ifndef NAME_MAX
        !            48: #define        NAME_MAX (MAXNAMLEN - 1)        /* DAG -- added for POSIX */
        !            49: #endif
        !            50: 
        !            51: #define        DIRBUF   8192                   /* buffer size for fs-indep. dirs */
        !            52:                /* must in general be larger than the filesystem buffer size */
        !            53: 
        !            54: extern DIR             *opendir();
        !            55: extern struct dirent   *readdir();
        !            56: extern OFFSET          telldir();
        !            57: extern void            seekdir();
        !            58: extern int             closedir();
        !            59: 
        !            60: #endif /* _PAX_DIRENT_H */

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