2 * $Id: adouble.h,v 1.5 2001-03-21 14:36:36 rufustfirefly Exp $
3 * Copyright (c) 1990,1991 Regents of The University of Michigan.
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.
16 * Research Systems Unix Group
17 * The University of Michigan
19 * 535 W. William Street
22 * netatalk@itd.umich.edu
25 #ifndef _ATALK_ADOUBLE_H
26 #define _ATALK_ADOUBLE_H
30 #if defined(sun) && defined(__svr4__)
31 #include </usr/ucbinclude/sys/file.h>
36 #include <sys/cdefs.h>
37 #include <sys/types.h>
39 #include <netatalk/endian.h>
42 /* XXX: this is the wrong place to put this.
43 * NOTE: as of 2.2.1, linux can't do a sendfile from a socket. */
44 #ifdef SENDFILE_FLAVOR_LINUX
45 #define HAVE_SENDFILE_READ
46 #define HAVE_SENDFILE_WRITE
47 #include <asm/unistd.h>
49 static inline int sendfile(int fdout, int fdin, off_t *off, size_t count)
51 return syscall(__NR_sendfile, fdout, fdin, off, count);
54 #include <sys/sendfile.h>
58 #ifdef SENDFILE_FLAVOR_BSD
59 #define HAVE_SENDFILE_READ
63 * AppleDouble entry IDs.
68 #define ADEID_COMMENT 4
69 #define ADEID_ICONBW 5
70 #define ADEID_ICONCOL 6
71 #define ADEID_FILEI 7 /* v1, replaced by: */
72 #define ADEID_FILEDATESI 8 /* this */
73 #define ADEID_FINDERI 9
74 #define ADEID_MACFILEI 10 /* we don't use this */
75 #define ADEID_PRODOSFILEI 11 /* we store prodos info here */
76 #define ADEID_MSDOSFILEI 12 /* we don't use this */
77 #define ADEID_SHORTNAME 13
78 #define ADEID_AFPFILEI 14 /* where the rest of the FILEI info goes */
84 #define AD_APPLESINGLE_MAGIC 0x00051600
85 #define AD_APPLEDOUBLE_MAGIC 0x00051607
86 #define AD_MAGIC AD_APPLEDOUBLE_MAGIC
89 #define AD_VERSION1 0x00010000
90 #define AD_VERSION2 0x00020000
91 #define AD_VERSION AD_VERSION1
93 /* sizes of relevant entry bits */
94 #define ADEDLEN_MAGIC 4
95 #define ADEDLEN_VERSION 4
96 #define ADEDLEN_FILLER 16
97 #define ADEDLEN_NENTRIES 2
99 #define AD_HEADER_LEN (ADEDLEN_MAGIC + ADEDLEN_VERSION + \
100 ADEDLEN_FILLER + ADEDLEN_NENTRIES)
101 #define AD_ENTRY_LEN 12 /* size of a single entry header */
103 /* v1 field widths */
104 #define ADEDLEN_NAME 255
105 #define ADEDLEN_COMMENT 200
106 #define ADEDLEN_FILEI 16
107 #define ADEDLEN_FINDERI 32
109 /* v2 field widths */
110 #define ADEDLEN_FILEDATESI 16
111 #define ADEDLEN_SHORTNAME 12 /* length up to 8.3 */
112 #define ADEDLEN_AFPFILEI 4
113 #define ADEDLEN_MACFILEI 4
114 #define ADEDLEN_PRODOSFILEI 8
115 #define ADEDLEN_MSDOSFILEI 2
116 #define ADEDLEN_DID 4
119 #define AD_DATASZ1 589
120 #define AD_DATASZ2 665 /* v1 + 4 new entries (entry desc. + entry) */
121 #define AD_DATASZ_MAX 1024
122 #if AD_VERSION == AD_VERSION1
123 #define AD_DATASZ AD_DATASZ1 /* hold enough for the entries */
124 #else if AD_VERSION == AD_VERSION2
125 #define AD_DATASZ AD_DATASZ2
129 * some legacy defines from netatalk-990130
130 * (to keep from breaking certain packages)
134 #define ADEDOFF_RFORK 589
135 #define ADEDOFF_NAME 86
136 #define ADEDOFF_COMMENT 341
137 #define ADEDOFF_FINDERI 557
138 #ifndef ADEDOFF_FILEI
139 #define ADEDOFF_FILEI 541
143 * The header of the AppleDouble Header File looks like this:
149 * Home File System 16 (this becomes filler in ad v2)
150 * Number of Entries 2
151 * Entry Descriptors for each entry:
162 typedef struct adf_lock_t {
165 int *refcount; /* handle read locks with multiple users */
172 adf_lock_t *adf_lock;
173 int adf_refcount, adf_lockcount, adf_lockmax;
176 /* some header protection */
177 #define AD_INITED 0xad494e54 /* ad"INT" */
180 u_int32_t ad_version;
181 char ad_filler[ 16 ];
182 struct ad_entry ad_eid[ ADEID_MAX ];
183 struct ad_fd ad_df, ad_hf;
184 int ad_flags, ad_inited;
185 int ad_refcount; /* used in afpd/ofork.c */
186 #ifdef USE_MMAPPED_HEADERS
189 char ad_data[AD_DATASZ_MAX];
193 #define ADFLAGS_DF (1<<0)
194 #define ADFLAGS_HF (1<<1)
195 #define ADFLAGS_DIR (1<<2)
196 #define ADFLAGS_NOADOUBLE (1<<3)
197 #define ADFLAGS_V1COMPAT (1<<4)
200 #define ADLOCK_CLR (0)
201 #define ADLOCK_RD (1<<0)
202 #define ADLOCK_WR (1<<1)
203 #define ADLOCK_MASK (ADLOCK_RD | ADLOCK_WR)
204 #define ADLOCK_UPGRADE (1<<2)
205 #define ADLOCK_FILELOCK (1<<3)
207 /* we use this so that we can use the same mechanism for both byte
208 * locks and file synchronization locks. i do this by co-opting either
209 * first bits on 32-bit machines or shifting above the last bit on
210 * 64-bit machines. this only matters for the data fork. */
211 #if defined(TRY_64BITOFF_T) && (~0UL > 0xFFFFFFFFU)
212 /* synchronization locks */
213 #define AD_FILELOCK_BASE (0x80000000)
214 #define AD_FILELOCK_WR (AD_FILELOCK_BASE + 0)
215 #define AD_FILELOCK_RD (AD_FILELOCK_BASE + 1)
217 #define AD_FILELOCK_BASE (0x7FFFFFFE)
218 #define AD_FILELOCK_WR (AD_FILELOCK_BASE + 0)
219 #define AD_FILELOCK_RD (AD_FILELOCK_BASE + 1)
222 /* time stuff. we overload the bits a little. */
223 #define AD_DATE_CREATE 0
224 #define AD_DATE_MODIFY 4
225 #define AD_DATE_BACKUP 8
226 #define AD_DATE_ACCESS 12
227 #define AD_DATE_MASK (AD_DATE_CREATE | AD_DATE_MODIFY | \
228 AD_DATE_BACKUP | AD_DATE_ACCESS)
229 #define AD_DATE_UNIX (1 << 10)
230 #define AD_DATE_START htonl(0x80000000)
231 #define AD_DATE_DELTA 946684800
232 #define AD_DATE_FROM_UNIX(x) htonl((x) - AD_DATE_DELTA)
233 #define AD_DATE_TO_UNIX(x) (ntohl(x) + AD_DATE_DELTA)
235 /* private AFPFileInfo bits */
236 #define AD_AFPFILEI_OWNER (1 << 0) /* any owner */
237 #define AD_AFPFILEI_GROUP (1 << 1) /* ignore group */
238 #define AD_AFPFILEI_BLANKACCESS (1 << 2) /* blank access permissions */
240 #define ad_dfileno(ad) ((ad)->ad_df.adf_fd)
241 #define ad_hfileno(ad) ((ad)->ad_hf.adf_fd)
242 #define ad_getversion(ad) ((ad)->ad_version)
244 #define ad_getentrylen(ad,eid) ((ad)->ad_eid[(eid)].ade_len)
245 #define ad_setentrylen(ad,eid,len) \
246 ((ad)->ad_eid[(eid)].ade_len = (len))
247 #define ad_getentryoff(ad,eid) ((ad)->ad_eid[(eid)].ade_off)
248 #define ad_entry(ad,eid) ((caddr_t)(ad)->ad_data + \
249 (ad)->ad_eid[(eid)].ade_off)
250 #define ad_getoflags(ad,adf) (((adf)&ADFLAGS_HF) ? \
251 (ad)->ad_hf.adf_flags : (ad)->ad_df.adf_flags)
254 extern void ad_rebuild_header __P((struct adouble *));
255 extern int ad_flush __P((struct adouble *, int));
256 extern int ad_close __P((struct adouble *, int));
259 extern int ad_flock_lock __P((struct adouble *, const u_int32_t /*eid*/,
260 const int /*type*/, const off_t /*offset*/,
261 const size_t /*len*/, const int /*user*/));
262 extern int ad_fcntl_lock __P((struct adouble *, const u_int32_t /*eid*/,
263 const int /*type*/, const off_t /*offset*/,
264 const size_t /*len*/, const int /*user*/));
265 extern void ad_fcntl_unlock __P((struct adouble *, const int /*user*/));
267 extern int ad_flock_tmplock __P((struct adouble *, const u_int32_t /*eid*/,
268 const int /*type*/, const off_t /*offset*/,
269 const size_t /*len*/));
270 extern int ad_fcntl_tmplock __P((struct adouble *, const u_int32_t /*eid*/,
271 const int /*type*/, const off_t /*offset*/,
272 const size_t /*len*/));
274 #ifdef USE_FLOCK_LOCKS
275 #define ad_lock ad_flock_lock
276 #define ad_tmplock ad_flock_tmplock
277 #define ad_unlock(a,b)
279 #define ad_lock ad_fcntl_lock
280 #define ad_tmplock ad_fcntl_tmplock
281 #define ad_unlock ad_fcntl_unlock
285 extern char *ad_path __P((char *, int));
286 extern int ad_mode __P((char *, int));
287 extern int ad_mkdir __P((char *, int));
288 extern int ad_open __P((char *, int, int, int, struct adouble *));
289 extern int ad_refresh __P((struct adouble *));
291 /* ad_read.c/ad_write.c */
292 extern ssize_t ad_read __P((struct adouble *, const u_int32_t,
293 const off_t, char *, const size_t));
294 extern ssize_t ad_write __P((struct adouble *, const u_int32_t, off_t,
295 const int, const char *, const size_t));
296 extern int ad_dtruncate __P((struct adouble *, const size_t));
297 extern int ad_rtruncate __P((struct adouble *, const size_t));
300 extern off_t ad_size __P((const struct adouble *, const u_int32_t ));
303 extern void *ad_mmapread __P((struct adouble *, const u_int32_t,
304 const off_t, const size_t));
305 extern void *ad_mmapwrite __P((struct adouble *, const u_int32_t,
306 const off_t, const int, const size_t));
307 #define ad_munmap(buf, len) (munmap((buf), (len)))
310 extern int ad_setdate __P((const struct adouble *, unsigned int, u_int32_t));
311 extern int ad_getdate __P((const struct adouble *, unsigned int, u_int32_t *));
314 extern int ad_setattr __P((const struct adouble *, const u_int16_t));
315 extern int ad_getattr __P((const struct adouble *, u_int16_t *));
317 #ifdef HAVE_SENDFILE_READ
318 extern ssize_t ad_readfile __P((const struct adouble *, const int,
319 const int, off_t, const size_t));
323 #ifdef HAVE_SENDFILE_WRITE
324 extern ssize_t ad_writefile __P((struct adouble *, const int,
325 const int, off_t, const int, const size_t));