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1/*
2 * $Id: adouble.h,v 1.55 2010-03-30 12:55:26 franklahm Exp $
3 * Copyright (c) 1990,1991 Regents of The University of Michigan.
4 * All Rights Reserved.
5 *
6 * Permission to use, copy, modify, and distribute this software and
7 * its documentation for any purpose and without fee is hereby granted,
8 * provided that the above copyright notice appears in all copies and
9 * that both that copyright notice and this permission notice appear
10 * in supporting documentation, and that the name of The University
11 * of Michigan not be used in advertising or publicity pertaining to
12 * distribution of the software without specific, written prior
13 * permission. This software is supplied as is without expressed or
14 * implied warranties of any kind.
15 *
16 *  Research Systems Unix Group
17 *  The University of Michigan
18 *  c/o Mike Clark
19 *  535 W. William Street
20 *  Ann Arbor, Michigan
21 *  +1-313-763-0525
22 *  netatalk@itd.umich.edu
23 */
24
25/*!
26 * @file
27 * @brief Part of Netatalk's AppleDouble implementatation
28 */
29
30#ifndef _ATALK_ADOUBLE_H
31#define _ATALK_ADOUBLE_H
32
33#ifdef HAVE_CONFIG_H
34#include <config.h>
35#endif
36
37#include <atalk/standards.h>
38
39#include <sys/types.h>
40#include <sys/stat.h>
41
42#ifdef HAVE_UNISTD_H
43#undef __USE_MISC
44#define __USE_MISC
45#include <unistd.h>
46#endif
47
48#include <sys/cdefs.h>
49
50#ifdef HAVE_FCNTL_H
51#include <fcntl.h>
52#endif
53
54#include <sys/mman.h>
55
56#ifdef HAVE_SYS_TIME_H
57#include <sys/time.h>
58#endif
59#include <netatalk/endian.h>
60
61/* version info */
62#define AD_VERSION1     0x00010000
63#define SFM_VERSION     AD_VERSION1
64
65#define AD_VERSION2     0x00020000
66#define AD_VERSION2_OSX 0x00020001
67/*
68  #define AD_VERSION1_ADS 0x00010002
69*/
70#define AD_VERSION1_SFM 0x00010003
71#define AD_VERSION      AD_VERSION2
72
73/*
74 * AppleDouble entry IDs.
75 */
76#define ADEID_DFORK         1
77#define ADEID_RFORK         2
78#define ADEID_NAME          3 /* Note: starting with Netatalk 2.1 we do NOT alway set the name */
79#define ADEID_COMMENT       4
80#define ADEID_ICONBW        5
81#define ADEID_ICONCOL       6
82#define ADEID_FILEI         7  /* v1, replaced by: */
83#define ADEID_FILEDATESI    8  /* this */
84#define ADEID_FINDERI       9
85#define ADEID_MACFILEI      10 /* we don't use this */
86#define ADEID_PRODOSFILEI   11 /* we store prodos info here */
87#define ADEID_MSDOSFILEI    12 /* we don't use this */
88#define ADEID_SHORTNAME     13
89#define ADEID_AFPFILEI      14 /* where the rest of the FILEI info goes */
90#define ADEID_DID           15
91
92#if AD_VERSION == AD_VERSION1
93#define ADEID_MAX           16
94#else
95/* netatalk private note fileid reused DID */
96#define ADEID_PRIVDEV       16
97#define ADEID_PRIVINO       17
98#define ADEID_PRIVSYN       18 /* in synch with database */
99#define ADEID_PRIVID        19
100#define ADEID_SFMRESERVE1   20
101#define ADEID_SFMRESERVE2   21
102
103#define AD_DEV              0x80444556
104#define AD_INO              0x80494E4F
105#define AD_SYN              0x8053594E
106#define AD_ID               0x8053567E
107#define ADEID_MAX           22
108#endif
109
110/* magic */
111#define AD_APPLESINGLE_MAGIC 0x00051600
112#define AD_APPLEDOUBLE_MAGIC 0x00051607
113#define AD_MAGIC             AD_APPLEDOUBLE_MAGIC
114#define SFM_MAGIC            0x00504641
115
116/* sizes of relevant entry bits */
117#define ADEDLEN_MAGIC       4
118#define ADEDLEN_VERSION     4
119#define ADEDLEN_FILLER      16
120#define ADEDLEN_NENTRIES    2
121
122/* 26 */
123#define AD_HEADER_LEN       (ADEDLEN_MAGIC + ADEDLEN_VERSION + \
124                             ADEDLEN_FILLER + ADEDLEN_NENTRIES)
125#define AD_ENTRY_LEN        12  /* size of a single entry header */
126
127/* v1 field widths */
128#define ADEDLEN_NAME        255
129#define ADEDLEN_COMMENT     200
130#define ADEDLEN_FILEI       16
131#define ADEDLEN_FINDERI     32
132
133/* v2 field widths */
134#define ADEDLEN_FILEDATESI      16
135#define ADEDLEN_SHORTNAME       12 /* length up to 8.3 */
136#define ADEDLEN_AFPFILEI        4
137#define ADEDLEN_MACFILEI        4
138#define ADEDLEN_PRODOSFILEI     8
139#define ADEDLEN_MSDOSFILEI      2
140#define ADEDLEN_DID             4
141#define ADEDLEN_PRIVDEV         8
142#define ADEDLEN_PRIVINO         8
143#define ADEDLEN_PRIVSYN         8
144#define ADEDLEN_PRIVID          4
145
146#define ADEID_NUM_V1            5
147#define ADEID_NUM_V2            13
148
149// #define ADEID_NUM_SFM        5
150/* sizeof SFM meta data */
151#define AD_SFM_LEN 60
152
153/* 589 */
154#define AD_DATASZ1      (AD_HEADER_LEN + ADEDLEN_NAME + ADEDLEN_COMMENT + ADEDLEN_FILEI + ADEDLEN_FINDERI + \
155                         (ADEID_NUM_V1 * AD_ENTRY_LEN))
156
157#if AD_DATASZ1 != 589
158#error bad size for AD_DATASZ1
159#endif
160
161#define AD_NEWSZ2       (ADEDLEN_DID + ADEDLEN_AFPFILEI + ADEDLEN_SHORTNAME + ADEDLEN_PRODOSFILEI \
162                         + ADEDLEN_PRIVDEV + ADEDLEN_PRIVINO + ADEDLEN_PRIVSYN + ADEDLEN_PRIVID)
163
164/* 725 */
165#define AD_DATASZ2      (AD_DATASZ1 + AD_NEWSZ2 + ((ADEID_NUM_V2 - ADEID_NUM_V1) * AD_ENTRY_LEN))
166
167#if AD_DATASZ2 != 741
168#error bad size for AD_DATASZ2
169#endif
170
171#define AD_DATASZ_MAX   1024
172#if AD_VERSION == AD_VERSION1
173#define AD_DATASZ   AD_DATASZ1 /* hold enough for the entries */
174#elif AD_VERSION == AD_VERSION2
175#define AD_DATASZ   AD_DATASZ2
176#endif
177
178/*
179 * some legacy defines from netatalk-990130
180 * (to keep from breaking certain packages)
181 *
182 */
183
184#define ADEDOFF_RFORK   589
185#define ADEDOFF_NAME    86
186#define ADEDOFF_COMMENT 341
187#define ADEDOFF_FINDERI 557
188#ifndef ADEDOFF_FILEI
189#define ADEDOFF_FILEI   541
190#endif
191
192typedef u_int32_t cnid_t;
193
194/*
195 * The header of the AppleDouble Header File looks like this:
196 *
197 *  NAME            SIZE
198 *  ====            ====
199 *  Magic           4
200 *  Version         4
201 *  Home File System    16  (this becomes filler in ad v2)
202 *  Number of Entries   2
203 *  Entry Descriptors for each entry:
204 *      Entry ID    4
205 *      Offset      4
206 *      Length      4
207 */
208
209struct ad_entry {
210    off_t   ade_off;
211    ssize_t   ade_len;
212};
213
214typedef struct adf_lock_t {
215    struct flock lock;
216    int user;
217    int *refcount; /* handle read locks with multiple users */
218} adf_lock_t;
219
220struct ad_fd {
221    int          adf_fd;        /* -1: invalid, -2: symlink */
222
223#ifndef HAVE_PREAD
224    off_t        adf_off;
225#endif
226
227    char         *adf_syml;
228    int          adf_flags;
229    int          adf_excl;
230    adf_lock_t   *adf_lock;
231    int          adf_refcount, adf_lockcount, adf_lockmax;
232};
233
234/* some header protection */
235#define AD_INITED  0xad494e54  /* ad"INT" */
236struct adouble_fops;
237
238struct adouble {
239    u_int32_t           ad_magic;
240    u_int32_t           ad_version;
241    char                ad_filler[ 16 ];
242    struct ad_entry     ad_eid[ ADEID_MAX ];
243    struct ad_fd        ad_data_fork, ad_resource_fork, ad_metadata_fork;
244    struct ad_fd        *ad_md; /* either ad_resource or ad_metadata */
245
246    int                 ad_flags;    /* This really stores version info too (AD_VERSION*) */
247    int                 ad_adflags;  /* ad_open flags adflags like ADFLAGS_DIR */
248    unsigned int        ad_inited;
249    int                 ad_options;
250    int                 ad_fileordir;
251    int                 ad_refcount; /* used in afpd/ofork.c */
252    off_t               ad_rlen;     /* ressource fork len with AFP 3.0
253                                        the header parameter size is too small.
254                                     */
255    char                *ad_m_name;   /* mac name for open fork */
256    int                 ad_m_namelen;
257    struct adouble_fops *ad_ops;
258    u_int16_t       ad_open_forks;      /* open forks (by others) */
259
260#ifdef USE_MMAPPED_HEADERS
261    char                *ad_data;
262#else
263    char        ad_data[AD_DATASZ_MAX];
264#endif
265};
266
267struct adouble_fops {
268    char *(*ad_path)(const char *, int);
269    int  (*ad_mkrf)(char *);
270    int  (*ad_rebuild_header)(struct adouble *);
271    int  (*ad_check_header)(struct adouble *, struct stat *);
272    int  (*ad_header_read)(struct adouble *, struct stat *);
273    int  (*ad_header_upgrade)(struct adouble *, char *);
274};
275
276#define ADFLAGS_DF        (1<<0)
277#define ADFLAGS_HF        (1<<1)
278#define ADFLAGS_DIR       (1<<2)
279/*
280#define ADFLAGS_NOADOUBLE (1<<3)
281*/
282#define ADFLAGS_V1COMPAT  (1<<4)
283#define ADFLAGS_NOHF      (1<<5)  /* not an error if no ressource fork */
284#define ADFLAGS_RDONLY    (1<<6)  /* don't try readwrite */
285#define ADFLAGS_OPENFORKS (1<<7)  /* check for open fork in ad_metadata function */
286#define ADFLAGS_RF        (1<<8)
287#define ADFLAGS_MD        ADFLAGS_HF /* (1<<9) */
288#define ADFLAGS_CREATE    (1<<9)
289
290/* adouble v2 cnid cache */
291#define ADVOL_NODEV      (1 << 0)
292#define ADVOL_CACHE      (1 << 1)
293#define ADVOL_UNIXPRIV   (1 << 2) /* adouble unix priv */
294#define ADVOL_INVDOTS    (1 << 3) /* dot files (.DS_Store) are invisible) */
295#define ADVOL_NOADOUBLE  (1 << 4)
296#define ADVOL_FOLLO_SYML (1 << 5)
297
298
299/* lock flags */
300#define ADLOCK_CLR      (0)
301#define ADLOCK_RD       (1<<0)
302#define ADLOCK_WR       (1<<1)
303#define ADLOCK_MASK     (ADLOCK_RD | ADLOCK_WR)
304#define ADLOCK_UPGRADE  (1<<2)
305#define ADLOCK_FILELOCK (1<<3)
306
307/* we use this so that we can use the same mechanism for both byte
308 * locks and file synchronization locks. i do this by co-opting either
309 * first bits on 32-bit machines or shifting above the last bit on
310 * 64-bit machines. this only matters for the data fork. */
311#if defined(TRY_64BITOFF_T) && (~0UL > 0xFFFFFFFFU)
312/* synchronization locks */
313#define AD_FILELOCK_BASE (0x80000000)
314#else
315#if _FILE_OFFSET_BITS == 64
316#define AD_FILELOCK_BASE (0x7FFFFFFFFFFFFFFFULL - 9)
317#else
318#define AD_FILELOCK_BASE (0x7FFFFFFF -9)
319#endif
320#endif
321
322/* FIXME:
323 * AD_FILELOCK_BASE case
324 */
325#if _FILE_OFFSET_BITS == 64
326#define BYTELOCK_MAX (0x7FFFFFFFFFFFFFFFULL)
327#else
328/* Tru64 is an always-64-bit OS; version 4.0 does not set _FILE_OFFSET_BITS */
329#if defined(TRU64)
330#define BYTELOCK_MAX (0x7FFFFFFFFFFFFFFFULL)
331#else
332#define BYTELOCK_MAX (0x7FFFFFFFU)
333#endif
334#endif
335
336#define AD_FILELOCK_OPEN_WR        (AD_FILELOCK_BASE + 0)
337#define AD_FILELOCK_OPEN_RD        (AD_FILELOCK_BASE + 1)
338#define AD_FILELOCK_DENY_WR        (AD_FILELOCK_BASE + 2)
339#define AD_FILELOCK_DENY_RD        (AD_FILELOCK_BASE + 3)
340#define AD_FILELOCK_OPEN_NONE      (AD_FILELOCK_BASE + 4)
341
342/* time stuff. we overload the bits a little.  */
343#define AD_DATE_CREATE         0
344#define AD_DATE_MODIFY         4
345#define AD_DATE_BACKUP         8
346#define AD_DATE_ACCESS        12
347#define AD_DATE_MASK          (AD_DATE_CREATE | AD_DATE_MODIFY | \
348                              AD_DATE_BACKUP | AD_DATE_ACCESS)
349#define AD_DATE_UNIX          (1 << 10)
350#define AD_DATE_START         htonl(0x80000000)
351#define AD_DATE_DELTA         946684800
352#define AD_DATE_FROM_UNIX(x)  htonl((x) - AD_DATE_DELTA)
353#define AD_DATE_TO_UNIX(x)    (ntohl(x) + AD_DATE_DELTA)
354
355/* various finder offset and info bits */
356#define FINDERINFO_FRTYPEOFF   0
357#define FINDERINFO_FRCREATOFF  4
358#define FINDERINFO_FRFLAGOFF   8
359
360/* FinderInfo Flags, char in `ad ls`, valid for files|dirs */
361#define FINDERINFO_ISONDESK      (1)     /* "d", fd */
362#define FINDERINFO_COLOR         (0x0e)
363#define FINDERINFO_HIDEEXT       (1<<4)  /* "e", fd */
364#define FINDERINFO_ISHARED       (1<<6)  /* "m", f  */
365#define FINDERINFO_HASNOINITS    (1<<7)  /* "n", f  */
366#define FINDERINFO_HASBEENINITED (1<<8)  /* "i", fd */
367#define FINDERINFO_HASCUSTOMICON (1<<10) /* "c", fd */
368#define FINDERINFO_ISSTATIONNERY (1<<11) /* "t", f  */
369#define FINDERINFO_NAMELOCKED    (1<<12) /* "s", fd */
370#define FINDERINFO_HASBUNDLE     (1<<13) /* "b", fd */
371#define FINDERINFO_INVISIBLE     (1<<14) /* "v", fd */
372#define FINDERINFO_ISALIAS       (1<<15) /* "a", fd */
373
374#define FINDERINFO_FRVIEWOFF  14
375#define FINDERINFO_CUSTOMICON 0x4
376#define FINDERINFO_CLOSEDVIEW 0x100
377
378/*
379  The "shared" and "invisible" attributes are opaque and stored and
380  retrieved from the FinderFlags. This fixes Bug #2802236:
381  <https://sourceforge.net/tracker/?func=detail&aid=2802236&group_id=8642&atid=108642>
382*/
383
384/* AFP attributes, char in `ad ls`, valid for files|dirs */
385#define ATTRBIT_INVISIBLE (1<<0)  /* opaque from FinderInfo */
386#define ATTRBIT_MULTIUSER (1<<1)  /* file: opaque, dir: see below */
387#define ATTRBIT_SYSTEM    (1<<2)  /* "y", fd */
388#define ATTRBIT_DOPEN     (1<<3)  /* data fork already open. Not stored, computed on the fly */
389#define ATTRBIT_ROPEN     (1<<4)  /* resource fork already open. Not stored, computed on the fly */
390#define ATTRBIT_NOWRITE   (1<<5)  /* "w", f, write inhibit(v2)/read-only(v1) bit */
391#define ATTRBIT_BACKUP    (1<<6)  /* "p", fd */
392#define ATTRBIT_NORENAME  (1<<7)  /* "r", fd */
393#define ATTRBIT_NODELETE  (1<<8)  /* "l", fd */
394#define ATTRBIT_NOCOPY    (1<<10) /* "o", f */
395#define ATTRBIT_SETCLR    (1<<15) /* set/clear bit (d) */
396
397/* AFP attributes for dirs. These should probably be computed on the fly.
398 * We don't do that, nor does e.g. OS S X 10.5 Server */
399#define ATTRBIT_EXPFLDR   (1<<1)  /* Folder is a sharepoint */
400#define ATTRBIT_MOUNTED   (1<<3)  /* Directory is mounted by a user */
401#define ATTRBIT_SHARED    (1<<4)  /* Shared area, called IsExpFolder in spec */
402
403/* private AFPFileInfo bits */
404#define AD_AFPFILEI_OWNER       (1 << 0) /* any owner */
405#define AD_AFPFILEI_GROUP       (1 << 1) /* ignore group */
406#define AD_AFPFILEI_BLANKACCESS (1 << 2) /* blank access permissions */
407
408#define ad_data_fileno(ad)  ((ad)->ad_data_fork.adf_fd)
409#define ad_reso_fileno(ad)  ((ad)->ad_resource_fork.adf_fd)
410#define ad_meta_fileno(ad)  ((ad)->ad_md->adf_fd)
411
412#define ad_getversion(ad)   ((ad)->ad_version)
413
414#define ad_getentrylen(ad,eid)     ((ad)->ad_eid[(eid)].ade_len)
415#define ad_setentrylen(ad,eid,len) ((ad)->ad_eid[(eid)].ade_len = (len))
416#define ad_getentryoff(ad,eid)     ((ad)->ad_eid[(eid)].ade_off)
417#define ad_entry(ad,eid)           ((caddr_t)(ad)->ad_data + (ad)->ad_eid[(eid)].ade_off)
418
419#define ad_get_HF_flags(ad) ((ad)->ad_resource_fork.adf_flags)
420#define ad_get_MD_flags(ad) ((ad)->ad_md->adf_flags)
421
422#define ad_get_syml_opt(ad) (((ad)->ad_options & ADVOL_FOLLO_SYML) ? 0 : O_NOFOLLOW)
423
424/* ad_flush.c */
425extern int ad_rebuild_adouble_header (struct adouble *);
426extern int ad_rebuild_sfm_header (struct adouble *);
427extern int ad_copy_header (struct adouble *, struct adouble *);
428extern int ad_flush (struct adouble *);
429extern int ad_close (struct adouble *, int);
430
431/* ad_lock.c */
432extern int ad_fcntl_lock    (struct adouble *, const u_int32_t /*eid*/,
433                                 const int /*type*/, const off_t /*offset*/,
434                                 const off_t /*len*/, const int /*user*/);
435extern void ad_fcntl_unlock (struct adouble *, const int /*user*/);
436extern int ad_fcntl_tmplock (struct adouble *, const u_int32_t /*eid*/,
437                                 const int /*type*/, const off_t /*offset*/,
438                                 const off_t /*len*/, const int /*user*/);
439extern int ad_testlock      (struct adouble * /*adp*/, int /*eid*/, off_t /*off*/);
440
441extern u_int16_t ad_openforks (struct adouble * /*adp*/, u_int16_t);
442extern int ad_excl_lock     (struct adouble * /*adp*/, const u_int32_t /*eid*/);
443
444#define ad_lock ad_fcntl_lock
445#define ad_tmplock ad_fcntl_tmplock
446#define ad_unlock ad_fcntl_unlock
447
448/* ad_open.c */
449extern int ad_setfuid     (const uid_t );
450extern uid_t ad_getfuid   (void );
451extern char *ad_dir       (const char *);
452extern char *ad_path      (const char *, int);
453extern char *ad_path_osx  (const char *, int);
454extern char *ad_path_ads  (const char *, int);
455extern char *ad_path_sfm  (const char *, int);
456extern int ad_mode        (const char *, int);
457extern int ad_mkdir       (const char *, int);
458extern void ad_init       (struct adouble *, int, int );
459extern int ad_open        (const char *, int, int, int, struct adouble *);
460extern int ad_openat      (int dirfd, const char *, int, int, int, struct adouble *);
461extern int ad_refresh     (struct adouble *);
462extern int ad_stat        (const char *, struct stat *);
463extern int ad_metadata    (const char *, int, struct adouble *);
464extern int ad_metadataat  (int, const char *, int, struct adouble *);
465
466#define ad_open_metadata(name, flags, mode, adp)\
467   ad_open(name, ADFLAGS_MD|(flags), O_RDWR |(mode), 0666, (adp))
468
469#define ad_close_metadata(adp) ad_close( (adp), ADFLAGS_MD)
470
471/* build a resource fork mode from the data fork mode:
472 * remove X mode and extend header to RW if R or W (W if R for locking),
473 */
474static inline mode_t ad_hf_mode (mode_t mode)
475{
476    mode &= ~(S_IXUSR | S_IXGRP | S_IXOTH);
477    /* fnctl lock need write access */
478    if ((mode & S_IRUSR))
479        mode |= S_IWUSR;
480    if ((mode & S_IRGRP))
481        mode |= S_IWGRP;
482    if ((mode & S_IROTH))
483        mode |= S_IWOTH;
484
485    /* if write mode set add read mode */
486    if ((mode & S_IWUSR))
487        mode |= S_IRUSR;
488    if ((mode & S_IWGRP))
489        mode |= S_IRGRP;
490    if ((mode & S_IWOTH))
491        mode |= S_IROTH;
492
493    return mode;
494}
495
496/* ad_ea.c */
497ssize_t sys_getxattr (const char *path, const char *name, void *value, size_t size);
498ssize_t sys_lgetxattr (const char *path, const char *name, void *value, size_t size);
499ssize_t sys_fgetxattr (int filedes, const char *name, void *value, size_t size);
500ssize_t sys_listxattr (const char *path, char *list, size_t size);
501ssize_t sys_llistxattr (const char *path, char *list, size_t size);
502ssize_t sys_flistxattr (int filedes, char *list, size_t size);
503int sys_removexattr (const char *path, const char *name);
504int sys_lremovexattr (const char *path, const char *name);
505int sys_fremovexattr (int filedes, const char *name);
506int sys_setxattr (const char *path, const char *name, const void *value, size_t size, int flags);
507int sys_lsetxattr (const char *path, const char *name, const void *value, size_t size, int flags);
508int sys_fsetxattr (int filedes, const char *name, const void *value, size_t size, int flags);
509int sys_copyxattr (const char *src, const char *dst);
510
511/* ad_read.c/ad_write.c */
512extern int     sys_ftruncate(int fd, off_t length);
513
514extern ssize_t ad_read (struct adouble *, const u_int32_t,
515                            const off_t, char *, const size_t);
516extern ssize_t ad_pread (struct ad_fd *, void *, size_t, off_t);
517extern ssize_t ad_write (struct adouble *, const u_int32_t, off_t,
518                             const int, const char *, const size_t);
519extern ssize_t adf_pread  (struct ad_fd *, void *, size_t, off_t);
520extern ssize_t adf_pwrite (struct ad_fd *, const void *, size_t, off_t);
521extern int     ad_dtruncate (struct adouble *, const off_t);
522extern int     ad_rtruncate (struct adouble *, const off_t);
523
524/* ad_size.c */
525extern off_t ad_size (const struct adouble *, const u_int32_t );
526
527/* ad_mmap.c */
528extern void *ad_mmapread (struct adouble *, const u_int32_t,
529                              const off_t, const size_t);
530extern void *ad_mmapwrite (struct adouble *, const u_int32_t,
531                               const off_t, const int, const size_t);
532#define ad_munmap(buf, len)  (munmap((buf), (len)))
533
534/* ad_date.c */
535extern int ad_setdate (struct adouble *, unsigned int, u_int32_t);
536extern int ad_getdate (const struct adouble *, unsigned int, u_int32_t *);
537
538/* ad_attr.c */
539extern int       ad_setattr (const struct adouble *, const u_int16_t);
540extern int       ad_getattr (const struct adouble *, u_int16_t *);
541
542/* Note: starting with Netatalk 2.1 we do NOT alway set the name */
543extern int       ad_setname (struct adouble *, const char *);
544
545#if AD_VERSION == AD_VERSION2
546extern int       ad_setid (struct adouble *, const dev_t dev,const ino_t ino, const u_int32_t, const u_int32_t, const void *);
547extern u_int32_t ad_getid (struct adouble *, const dev_t, const ino_t, const cnid_t, const void *);
548extern u_int32_t ad_forcegetid (struct adouble *adp);
549#else
550#define ad_setid(a, b, c)
551#endif
552
553#ifdef WITH_SENDFILE
554extern int ad_readfile_init(const struct adouble *ad,
555				       const int eid, off_t *off,
556				       const int end);
557#endif
558
559#if 0
560#ifdef HAVE_SENDFILE_WRITE
561extern ssize_t ad_writefile (struct adouble *, const int,
562                                 const int, off_t, const int, const size_t);
563#endif /* HAVE_SENDFILE_WRITE */
564#endif /* 0 */
565
566#endif /* _ATALK_ADOUBLE_H */
567