| 1 | /**************************************************************************************** |
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| 2 | * |
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| 3 | * File: dirent.h |
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| 4 | * Created: 7/3/93 By: George T. Talbot |
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| 5 | * Purpose: Implements UNIX-like directory reading for the Macintosh. |
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| 6 | * This file describes Filesystem-independent directory information. |
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| 7 | * Modifications: |
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| 8 | * |
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| 9 | * Notes: |
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| 10 | * 1) These routines will NOT work under A/UX. |
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| 11 | * 2) WD = working directory |
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| 12 | * 3) CD = change directory |
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| 13 | * 4) FS = file system |
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| 14 | * 5) Mac filesystems allow spaces as part of pathnames! |
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| 15 | * 6) All routines which return a path use the default Macintosh path separator, |
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| 16 | * a colon (":"). |
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| 17 | * |
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| 18 | ****************************************************************************************/ |
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| 19 | |
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| 20 | #ifndef __dirent_h |
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| 21 | #define __dirent_h |
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| 22 | |
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| 23 | /* Maximum path length for opendir() */ |
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| 24 | #define MAXPATHLEN 255 |
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| 25 | |
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| 26 | /* |
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| 27 | * Definitions for library routines operating on directories. |
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| 28 | */ |
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| 29 | typedef struct __dirdesc { |
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| 30 | /* PRIVATE FIELDS. Use the fields & defines below PUBLIC */ |
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| 31 | FSSpec dir_fsp; |
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| 32 | long dd_off; /* Current offset (ioWDIndex) in dir (for telldir) */ |
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| 33 | int dd_cached; /* true if dd_cache_hint points to the next dir to be read */ |
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| 34 | |
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| 35 | struct dirent **dd_cache_hint; |
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| 36 | struct dirent **dd_buf; /* directory data buffer */ |
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| 37 | |
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| 38 | /* PUBLIC */ |
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| 39 | long dd_fd; /* file descriptor (dirID) of this dir */ |
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| 40 | |
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| 41 | #define dd_parent dir_fsp.parID /* dirID of parent */ |
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| 42 | #define dd_bsize 1 /* amount of entries read at a time */ |
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| 43 | #define dd_size sizeof(struct dirent) /* amount of valid data in buffer */ |
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| 44 | #define dd_loc 1 |
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| 45 | #define dd_name dir_fsp.name |
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| 46 | #define dd_volume dir_fsp.vRefNum |
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| 47 | |
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| 48 | long dd_numents; /* Number of files/directories in this directory */ |
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| 49 | } DIR; |
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| 50 | |
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| 51 | /* See dirent.c for descriptions of these routines */ |
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| 52 | extern DIR *opendir(char *dirname); |
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| 53 | extern struct dirent *readdir(DIR *dirp); |
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| 54 | extern int closedir(DIR *dirp); |
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| 55 | extern void seekdir(DIR *dirp, long loc); |
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| 56 | extern long telldir(DIR *dirp); |
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| 57 | |
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| 58 | #ifndef lint |
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| 59 | #define rewinddir(dirp) seekdir((dirp), (long)0) |
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| 60 | #else |
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| 61 | extern void rewinddir(DIR *dirp); |
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| 62 | #endif |
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| 63 | |
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| 64 | /* Convenient routines */ |
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| 65 | extern char *getwd(char *path); |
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| 66 | extern int chdir(char *path); |
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| 67 | extern char *pathdir(DIR *dirp, char *path); |
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| 68 | |
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| 69 | /* Any errors in above routines (and hopendir()) are put here */ |
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| 70 | extern OSErr dd_errno; |
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| 71 | extern char *dd_separator; /* If you're feeling brave, change this to "/" */ |
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| 72 | extern int dd_xform_seps; |
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| 73 | |
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| 74 | /* In case you like errno instead */ |
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| 75 | #ifdef UNCOMMENT_ME_IF_YOUVE_GOT_TO_HAVE_ERRNO |
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| 76 | #define errno dd_errno |
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| 77 | #endif |
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| 78 | |
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| 79 | /* This routine is Mac-specific, but very convenient in certain situations */ |
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| 80 | OSErr hgetwd(short vRefNum, long startDirID, char *path, int max_path_len, char *sep); |
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| 81 | |
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| 82 | /* You probably don't want to call this. */ |
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| 83 | extern DIR *hopendir(char *dirname, short vRefNum, long dirID); |
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| 84 | |
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| 85 | #include "sys_dirent.h" |
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| 86 | |
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| 87 | #endif /* !__dirent_h */ |
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