2 * Copyright (c) 1990,1991 Regents of The University of Michigan.
5 * Permission to use, copy, modify, and distribute this software and
6 * its documentation for any purpose and without fee is hereby granted,
7 * provided that the above copyright notice appears in all copies and
8 * that both that copyright notice and this permission notice appear
9 * in supporting documentation, and that the name of The University
10 * of Michigan not be used in advertising or publicity pertaining to
11 * distribution of the software without specific, written prior
12 * permission. This software is supplied as is without expressed or
13 * implied warranties of any kind.
15 * Research Systems Unix Group
16 * The University of Michigan
18 * 535 W. William Street
21 * netatalk@itd.umich.edu
24 #ifndef _ATALK_ADOUBLE_H
25 #define _ATALK_ADOUBLE_H
29 #if defined(sun) && defined(__svr4__)
30 #include </usr/ucbinclude/sys/file.h>
35 #include <sys/cdefs.h>
36 #include <sys/types.h>
38 #include <netatalk/endian.h>
41 /* XXX: this is the wrong place to put this.
42 * NOTE: as of 2.2.1, linux can't do a sendfile from a socket. */
43 #ifdef SENDFILE_FLAVOR_LINUX
44 #define HAVE_SENDFILE_READ
45 #define HAVE_SENDFILE_WRITE
46 #include <asm/unistd.h>
48 static inline int sendfile(int fdout, int fdin, off_t *off, size_t count)
50 return syscall(__NR_sendfile, fdout, fdin, off, count);
53 #include <sys/sendfile.h>
57 #ifdef SENDFILE_FLAVOR_BSD
58 #define HAVE_SENDFILE_READ
62 * AppleDouble entry IDs.
67 #define ADEID_COMMENT 4
68 #define ADEID_ICONBW 5
69 #define ADEID_ICONCOL 6
70 #define ADEID_FILEI 7 /* v1, replaced by: */
71 #define ADEID_FILEDATESI 8 /* this */
72 #define ADEID_FINDERI 9
73 #define ADEID_MACFILEI 10 /* we don't use this */
74 #define ADEID_PRODOSFILEI 11 /* we store prodos info here */
75 #define ADEID_MSDOSFILEI 12 /* we don't use this */
76 #define ADEID_SHORTNAME 13
77 #define ADEID_AFPFILEI 14 /* where the rest of the FILEI info goes */
83 #define AD_APPLESINGLE_MAGIC 0x00051600
84 #define AD_APPLEDOUBLE_MAGIC 0x00051607
85 #define AD_MAGIC AD_APPLEDOUBLE_MAGIC
88 #define AD_VERSION1 0x00010000
89 #define AD_VERSION2 0x00020000
90 #define AD_VERSION AD_VERSION1
92 /* sizes of relevant entry bits */
93 #define ADEDLEN_MAGIC 4
94 #define ADEDLEN_VERSION 4
95 #define ADEDLEN_FILLER 16
96 #define ADEDLEN_NENTRIES 2
98 #define AD_HEADER_LEN (ADEDLEN_MAGIC + ADEDLEN_VERSION + \
99 ADEDLEN_FILLER + ADEDLEN_NENTRIES)
100 #define AD_ENTRY_LEN 12 /* size of a single entry header */
102 /* v1 field widths */
103 #define ADEDLEN_NAME 255
104 #define ADEDLEN_COMMENT 200
105 #define ADEDLEN_FILEI 16
106 #define ADEDLEN_FINDERI 32
108 /* v2 field widths */
109 #define ADEDLEN_FILEDATESI 16
110 #define ADEDLEN_SHORTNAME 12 /* length up to 8.3 */
111 #define ADEDLEN_AFPFILEI 4
112 #define ADEDLEN_MACFILEI 4
113 #define ADEDLEN_PRODOSFILEI 8
114 #define ADEDLEN_MSDOSFILEI 2
115 #define ADEDLEN_DID 4
118 #define AD_DATASZ1 589
119 #define AD_DATASZ2 665 /* v1 + 4 new entries (entry desc. + entry) */
120 #define AD_DATASZ_MAX 1024
121 #if AD_VERSION == AD_VERSION1
122 #define AD_DATASZ AD_DATASZ1 /* hold enough for the entries */
123 #else if AD_VERSION == AD_VERSION2
124 #define AD_DATASZ AD_DATASZ2
128 * some legacy defines from netatalk-990130
129 * (to keep from breaking certain packages)
133 #define ADEDOFF_RFORK 589
134 #define ADEDOFF_NAME 86
135 #define ADEDOFF_COMMENT 341
136 #define ADEDOFF_FINDERI 557
137 #ifndef ADEDOFF_FILEI
138 #define ADEDOFF_FILEI 541
142 * The header of the AppleDouble Header File looks like this:
148 * Home File System 16 (this becomes filler in ad v2)
149 * Number of Entries 2
150 * Entry Descriptors for each entry:
161 typedef struct adf_lock_t {
164 int *refcount; /* handle read locks with multiple users */
171 adf_lock_t *adf_lock;
172 int adf_refcount, adf_lockcount, adf_lockmax;
175 /* some header protection */
176 #define AD_INITED 0xad494e54 /* ad"INT" */
179 u_int32_t ad_version;
180 char ad_filler[ 16 ];
181 struct ad_entry ad_eid[ ADEID_MAX ];
182 struct ad_fd ad_df, ad_hf;
183 int ad_flags, ad_inited;
184 #ifdef USE_MMAPPED_HEADERS
187 char ad_data[AD_DATASZ_MAX];
191 #define ADFLAGS_DF (1<<0)
192 #define ADFLAGS_HF (1<<1)
193 #define ADFLAGS_DIR (1<<2)
194 #define ADFLAGS_NOADOUBLE (1<<3)
195 #define ADFLAGS_V1COMPAT (1<<4)
198 #define ADLOCK_CLR (0)
199 #define ADLOCK_RD (1<<0)
200 #define ADLOCK_WR (1<<1)
201 #define ADLOCK_MASK (ADLOCK_RD | ADLOCK_WR)
202 #define ADLOCK_UPGRADE (1<<2)
203 #define ADLOCK_FILELOCK (1<<3)
205 /* we use this so that we can use the same mechanism for both byte
206 * locks and file synchronization locks. i do this by co-opting either
207 * first bits on 32-bit machines or shifting above the last bit on
208 * 64-bit machines. this only matters for the data fork. */
209 #if defined(TRY_64BITOFF_T) && (~0UL > 0xFFFFFFFFU)
210 /* synchronization locks */
211 #define AD_FILELOCK_BASE (0x80000000)
212 #define AD_FILELOCK_WR (AD_FILELOCK_BASE + 0)
213 #define AD_FILELOCK_RD (AD_FILELOCK_BASE + 1)
215 #define AD_FILELOCK_BASE (0x7FFFFFFE)
216 #define AD_FILELOCK_WR (AD_FILELOCK_BASE + 0)
217 #define AD_FILELOCK_RD (AD_FILELOCK_BASE + 1)
220 /* time stuff. we overload the bits a little. */
221 #define AD_DATE_CREATE 0
222 #define AD_DATE_MODIFY 4
223 #define AD_DATE_BACKUP 8
224 #define AD_DATE_ACCESS 12
225 #define AD_DATE_MASK (AD_DATE_CREATE | AD_DATE_MODIFY | \
226 AD_DATE_BACKUP | AD_DATE_ACCESS)
227 #define AD_DATE_UNIX (1 << 10)
228 #define AD_DATE_START htonl(0x80000000)
229 #define AD_DATE_DELTA 946684800
230 #define AD_DATE_FROM_UNIX(x) htonl((x) - AD_DATE_DELTA)
231 #define AD_DATE_TO_UNIX(x) (ntohl(x) + AD_DATE_DELTA)
233 /* private AFPFileInfo bits */
234 #define AD_AFPFILEI_OWNER (1 << 0) /* any owner */
235 #define AD_AFPFILEI_GROUP (1 << 1) /* ignore group */
236 #define AD_AFPFILEI_BLANKACCESS (1 << 2) /* blank access permissions */
238 #define ad_dfileno(ad) ((ad)->ad_df.adf_fd)
239 #define ad_hfileno(ad) ((ad)->ad_hf.adf_fd)
240 #define ad_getversion(ad) ((ad)->ad_version)
242 #define ad_getentrylen(ad,eid) ((ad)->ad_eid[(eid)].ade_len)
243 #define ad_setentrylen(ad,eid,len) \
244 ((ad)->ad_eid[(eid)].ade_len = (len))
245 #define ad_getentryoff(ad,eid) ((ad)->ad_eid[(eid)].ade_off)
246 #define ad_entry(ad,eid) ((caddr_t)(ad)->ad_data + \
247 (ad)->ad_eid[(eid)].ade_off)
248 #define ad_getoflags(ad,adf) (((adf)&ADFLAGS_HF) ? \
249 (ad)->ad_hf.adf_flags : (ad)->ad_df.adf_flags)
252 extern void ad_rebuild_header __P((struct adouble *));
253 extern int ad_flush __P((struct adouble *, int));
254 extern int ad_close __P((struct adouble *, int));
257 extern int ad_flock_lock __P((struct adouble *, const u_int32_t /*eid*/,
258 const int /*type*/, const off_t /*offset*/,
259 const size_t /*len*/, const int /*user*/));
260 extern int ad_fcntl_lock __P((struct adouble *, const u_int32_t /*eid*/,
261 const int /*type*/, const off_t /*offset*/,
262 const size_t /*len*/, const int /*user*/));
263 extern void ad_fcntl_unlock __P((struct adouble *, const int /*user*/));
265 extern int ad_flock_tmplock __P((struct adouble *, const u_int32_t /*eid*/,
266 const int /*type*/, const off_t /*offset*/,
267 const size_t /*len*/));
268 extern int ad_fcntl_tmplock __P((struct adouble *, const u_int32_t /*eid*/,
269 const int /*type*/, const off_t /*offset*/,
270 const size_t /*len*/));
272 #ifdef USE_FLOCK_LOCKS
273 #define ad_lock ad_flock_lock
274 #define ad_tmplock ad_flock_tmplock
275 #define ad_unlock(a,b)
277 #define ad_lock ad_fcntl_lock
278 #define ad_tmplock ad_fcntl_tmplock
279 #define ad_unlock ad_fcntl_unlock
283 extern char *ad_path __P((char *, int));
284 extern int ad_mode __P((char *, int));
285 extern int ad_mkdir __P((char *, int));
286 extern int ad_open __P((char *, int, int, int, struct adouble *));
287 extern int ad_refresh __P((struct adouble *));
289 /* ad_read.c/ad_write.c */
290 extern ssize_t ad_read __P((struct adouble *, const u_int32_t,
291 const off_t, char *, const size_t));
292 extern ssize_t ad_write __P((struct adouble *, const u_int32_t, off_t,
293 const int, const char *, const size_t));
294 extern int ad_dtruncate __P((struct adouble *, const size_t));
295 extern int ad_rtruncate __P((struct adouble *, const size_t));
298 extern off_t ad_size __P((const struct adouble *, const u_int32_t ));
301 extern void *ad_mmapread __P((struct adouble *, const u_int32_t,
302 const off_t, const size_t));
303 extern void *ad_mmapwrite __P((struct adouble *, const u_int32_t,
304 const off_t, const int, const size_t));
305 #define ad_munmap(buf, len) (munmap((buf), (len)))
308 extern int ad_setdate __P((const struct adouble *, unsigned int, u_int32_t));
309 extern int ad_getdate __P((const struct adouble *, unsigned int, u_int32_t *));
312 extern int ad_setattr __P((const struct adouble *, const u_int16_t));
313 extern int ad_getattr __P((const struct adouble *, u_int16_t *));
315 #ifdef HAVE_SENDFILE_READ
316 extern ssize_t ad_readfile __P((const struct adouble *, const int,
317 const int, off_t, const size_t));
321 #ifdef HAVE_SENDFILE_WRITE
322 extern ssize_t ad_writefile __P((struct adouble *, const int,
323 const int, off_t, const int, const size_t));