2 * $Id: ad_open.c,v 1.44 2009-07-20 23:23:02 didg Exp $
4 * Copyright (c) 1999 Adrian Sun (asun@u.washington.edu)
5 * Copyright (c) 1990,1991 Regents of The University of Michigan.
8 * Permission to use, copy, modify, and distribute this software and
9 * its documentation for any purpose and without fee is hereby granted,
10 * provided that the above copyright notice appears in all copies and
11 * that both that copyright notice and this permission notice appear
12 * in supporting documentation, and that the name of The University
13 * of Michigan not be used in advertising or publicity pertaining to
14 * distribution of the software without specific, written prior
15 * permission. This software is supplied as is without expressed or
16 * implied warranties of any kind.
18 * Research Systems Unix Group
19 * The University of Michigan
21 * 535 W. William Street
24 * netatalk@itd.umich.edu
26 * NOTE: I don't use inline because a good compiler should be
27 * able to optimize all the static below. Didier
32 #endif /* HAVE_CONFIG_H */
36 #include <atalk/adouble.h>
37 #include <sys/param.h>
38 #include <atalk/logger.h>
40 #include <atalk/util.h>
43 #include "ad_private.h"
47 #define MAX(a, b) ((a) < (b) ? (b) : (a))
51 * AppleDouble entry default offsets.
52 * The layout looks like this:
54 * this is the v1 layout:
56 * | NAME | COMMENT | FILEI | FINDERI | RFORK |
58 * we need to change it to look like this:
61 * field length (in bytes)
64 * FILEDATESI 16 replaces FILEI
68 * SHORTNAME 12 8.3 new
71 * so, all we need to do is replace FILEI with FILEDATESI, move RFORK,
72 * and add in the new fields.
74 * NOTE: the HFS module will need similar modifications to interact with
78 #define ADEDOFF_MAGIC (0)
79 #define ADEDOFF_VERSION (ADEDOFF_MAGIC + ADEDLEN_MAGIC)
80 #define ADEDOFF_FILLER (ADEDOFF_VERSION + ADEDLEN_VERSION)
81 #define ADEDOFF_NENTRIES (ADEDOFF_FILLER + ADEDLEN_FILLER)
83 /* initial lengths of some of the fields */
84 #define ADEDLEN_INIT 0
86 /* make sure we don't redefine ADEDOFF_FILEI */
89 #endif /* ADEDOFF_FILEI */
91 #define ADEDOFF_NAME_V1 (AD_HEADER_LEN + ADEID_NUM_V1*AD_ENTRY_LEN)
92 #define ADEDOFF_COMMENT_V1 (ADEDOFF_NAME_V1 + ADEDLEN_NAME)
93 #define ADEDOFF_FILEI (ADEDOFF_COMMENT_V1 + ADEDLEN_COMMENT)
94 #define ADEDOFF_FINDERI_V1 (ADEDOFF_FILEI + ADEDLEN_FILEI)
95 #define ADEDOFF_RFORK_V1 (ADEDOFF_FINDERI_V1 + ADEDLEN_FINDERI)
97 /* i stick things in a slightly different order than their eid order in
98 * case i ever want to separate RootInfo behaviour from the rest of the
100 #define ADEDOFF_NAME_V2 (AD_HEADER_LEN + ADEID_NUM_V2*AD_ENTRY_LEN)
101 #define ADEDOFF_COMMENT_V2 (ADEDOFF_NAME_V2 + ADEDLEN_NAME)
102 #define ADEDOFF_FILEDATESI (ADEDOFF_COMMENT_V2 + ADEDLEN_COMMENT)
103 #define ADEDOFF_FINDERI_V2 (ADEDOFF_FILEDATESI + ADEDLEN_FILEDATESI)
104 #define ADEDOFF_DID (ADEDOFF_FINDERI_V2 + ADEDLEN_FINDERI)
105 #define ADEDOFF_AFPFILEI (ADEDOFF_DID + ADEDLEN_DID)
106 #define ADEDOFF_SHORTNAME (ADEDOFF_AFPFILEI + ADEDLEN_AFPFILEI)
107 #define ADEDOFF_PRODOSFILEI (ADEDOFF_SHORTNAME + ADEDLEN_SHORTNAME)
108 #define ADEDOFF_PRIVDEV (ADEDOFF_PRODOSFILEI + ADEDLEN_PRODOSFILEI)
109 #define ADEDOFF_PRIVINO (ADEDOFF_PRIVDEV + ADEDLEN_PRIVDEV)
110 #define ADEDOFF_PRIVSYN (ADEDOFF_PRIVINO + ADEDLEN_PRIVINO)
111 #define ADEDOFF_PRIVID (ADEDOFF_PRIVSYN + ADEDLEN_PRIVSYN)
113 #define ADEDOFF_RFORK_V2 (ADEDOFF_PRIVID + ADEDLEN_PRIVID)
115 #define ADEID_NUM_OSX 2
116 #define ADEDOFF_FINDERI_OSX (AD_HEADER_LEN + ADEID_NUM_OSX*AD_ENTRY_LEN)
117 #define ADEDOFF_RFORK_OSX (ADEDOFF_FINDERI_OSX + ADEDLEN_FINDERI)
119 /* we keep local copies of a bunch of stuff so that we can initialize things
122 /* this is to prevent changing timezones from causing problems with
123 localtime volumes. the screw-up is 30 years. we use a delta of 5
125 #define TIMEWARP_DELTA 157680000
129 u_int32_t id, offset, len;
132 static const struct entry entry_order1[ADEID_NUM_V1 +1] = {
133 {ADEID_NAME, ADEDOFF_NAME_V1, ADEDLEN_INIT}, /* 3 */
134 {ADEID_COMMENT, ADEDOFF_COMMENT_V1, ADEDLEN_INIT}, /* 4 */
135 {ADEID_FILEI, ADEDOFF_FILEI, ADEDLEN_FILEI}, /* 7 */
136 {ADEID_FINDERI, ADEDOFF_FINDERI_V1, ADEDLEN_FINDERI}, /* 9 */
137 {ADEID_RFORK, ADEDOFF_RFORK_V1, ADEDLEN_INIT}, /* 2 */
141 #if AD_VERSION == AD_VERSION1
142 #define DISK_EID(ad, a) (a)
144 #else /* AD_VERSION == AD_VERSION2 */
146 static u_int32_t get_eid(struct adouble *ad, u_int32_t eid)
150 if (ad->ad_version == AD_VERSION1)
153 return ADEID_PRIVDEV;
155 return ADEID_PRIVINO;
157 return ADEID_PRIVSYN;
164 #define DISK_EID(ad, a) get_eid(ad, a)
166 static const struct entry entry_order2[ADEID_NUM_V2 +1] = {
167 {ADEID_NAME, ADEDOFF_NAME_V2, ADEDLEN_INIT},
168 {ADEID_COMMENT, ADEDOFF_COMMENT_V2, ADEDLEN_INIT},
169 {ADEID_FILEDATESI, ADEDOFF_FILEDATESI, ADEDLEN_FILEDATESI},
170 {ADEID_FINDERI, ADEDOFF_FINDERI_V2, ADEDLEN_FINDERI},
171 {ADEID_DID, ADEDOFF_DID, ADEDLEN_DID},
172 {ADEID_AFPFILEI, ADEDOFF_AFPFILEI, ADEDLEN_AFPFILEI},
173 {ADEID_SHORTNAME, ADEDOFF_SHORTNAME, ADEDLEN_INIT},
174 {ADEID_PRODOSFILEI, ADEDOFF_PRODOSFILEI, ADEDLEN_PRODOSFILEI},
175 {ADEID_PRIVDEV, ADEDOFF_PRIVDEV, ADEDLEN_INIT},
176 {ADEID_PRIVINO, ADEDOFF_PRIVINO, ADEDLEN_INIT},
177 {ADEID_PRIVSYN, ADEDOFF_PRIVSYN, ADEDLEN_INIT},
178 {ADEID_PRIVID, ADEDOFF_PRIVID, ADEDLEN_INIT},
179 {ADEID_RFORK, ADEDOFF_RFORK_V2, ADEDLEN_INIT},
184 /* OS X adouble finder info and resource fork only
186 static const struct entry entry_order_osx[ADEID_NUM_OSX +1] = {
187 {ADEID_FINDERI, ADEDOFF_FINDERI_OSX, ADEDLEN_FINDERI},
188 {ADEID_RFORK, ADEDOFF_RFORK_OSX, ADEDLEN_INIT},
193 #define ADEID_NUM_SFM 3
194 static const struct entry entry_order_sfm[ADEID_NUM_SFM +1] = {
195 {ADEID_FINDERI, 16, ADEDLEN_FINDERI}, /* 9 */
196 {ADEID_SFMRESERVE2, 16+32, 6}, /* 21 */
197 {ADEID_FILEI, 60, ADEDLEN_FILEI}, /* 7 */
202 #endif /* AD_VERSION == AD_VERSION2 */
204 #if AD_VERSION == AD_VERSION2
206 /* update a version 2 adouble resource fork with our private entries */
207 static int ad_update(struct adouble *ad, const char *path)
210 u_int16_t nentries = 0;
211 off_t off, shiftdata=0;
212 const struct entry *eid;
213 static off_t entry_len[ADEID_MAX];
214 static char databuf[ADEID_MAX][256], *buf;
218 /* check to see if we should convert this header. */
219 if (!path || ad->ad_flags != AD_VERSION2)
222 if (!(ad->ad_md->adf_flags & O_RDWR)) {
223 /* we were unable to open the file read write the last time */
227 if (ad->ad_eid[ADEID_RFORK].ade_off) {
228 shiftdata = ADEDOFF_RFORK_V2 -ad->ad_eid[ADEID_RFORK].ade_off;
231 memcpy(&nentries, ad->ad_data + ADEDOFF_NENTRIES, sizeof( nentries ));
232 nentries = ntohs( nentries );
234 if ( shiftdata == 0 && nentries == ADEID_NUM_V2)
237 memset(entry_len, 0, sizeof(entry_len));
238 memset(databuf, 0, sizeof(databuf));
240 /* bail if we can't get a lock */
241 if (ad_tmplock(ad, ADEID_RFORK, ADLOCK_WR, 0, 0, 0) < 0)
244 fd = ad->ad_md->adf_fd;
246 if (fstat(fd, &st)) {
250 if (st.st_size > 0x7fffffff) {
251 LOG(log_debug, logtype_default, "ad_update: file '%s' too big for update.", path);
256 off = ad->ad_eid[ADEID_RFORK].ade_off;
257 if (off > st.st_size) {
258 LOG(log_error, logtype_default, "ad_update: invalid resource fork offset. (off: %u)", off);
263 if (ad->ad_eid[ADEID_RFORK].ade_len > st.st_size - off) {
264 LOG(log_error, logtype_default, "ad_update: invalid resource fork length. (rfork len: %u)", ad->ad_eid[ADEID_RFORK].ade_len);
269 if ((void *) (buf = (char *)
270 mmap(NULL, st.st_size + shiftdata,
271 PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)) ==
276 /* last place for failure. */
277 if (sys_ftruncate(fd, st.st_size + shiftdata) < 0) {
281 /* move the RFORK. this assumes that the RFORK is at the end */
283 memmove(buf + ADEDOFF_RFORK_V2, buf + off, ad->ad_eid[ADEID_RFORK].ade_len);
286 munmap(buf, st.st_size + shiftdata);
288 /* now, fix up our copy of the header */
289 memset(ad->ad_filler, 0, sizeof(ad->ad_filler));
291 /* save the header entries */
294 if( ad->ad_eid[eid->id].ade_off != 0) {
295 if ( eid->id > 2 && ad->ad_eid[eid->id].ade_len < 256)
296 memcpy( databuf[eid->id], ad->ad_data +ad->ad_eid[eid->id].ade_off, ad->ad_eid[eid->id].ade_len);
297 entry_len[eid->id] = ad->ad_eid[eid->id].ade_len;
302 memset(ad->ad_data + AD_HEADER_LEN, 0, AD_DATASZ - AD_HEADER_LEN);
304 /* copy the saved entries to the new header */
307 if ( eid->id > 2 && entry_len[eid->id] > 0) {
308 memcpy(ad->ad_data+eid->offset, databuf[eid->id], entry_len[eid->id]);
310 ad->ad_eid[eid->id].ade_off = eid->offset;
311 ad->ad_eid[eid->id].ade_len = entry_len[eid->id];
315 /* rebuild the header and cleanup */
316 LOG(log_debug, logtype_default, "updated AD2 header %s", path);
321 ad_tmplock(ad, ADEID_RFORK, ADLOCK_CLR, 0, 0, 0);
326 /* ------------------------------------------
327 FIXME work only if < 2GB
329 static int ad_convert(struct adouble *ad, const char *path)
336 /* use resource fork offset from file */
345 if (!(ad->ad_md->adf_flags & ( O_RDWR))) {
346 /* we were unable to open the file read write the last time */
350 /* check to see if we should convert this header. */
351 toV2 = ad->ad_version == AD_VERSION1 && ad->ad_flags == AD_VERSION2;
352 toV1 = ad->ad_version == AD_VERSION2 && ad->ad_flags == AD_VERSION1;
357 /* convert from v1 to v2. what does this mean?
358 * 1) change FILEI into FILEDATESI
359 * 2) create space for SHORTNAME, AFPFILEI, DID, and PRODOSI
360 * 3) move FILEI attributes into AFPFILEI
361 * 4) initialize ACCESS field of FILEDATESI.
362 * 5) move the resource fork
365 /* bail if we can't get a lock */
366 if (ad_tmplock(ad, ADEID_RFORK, ADLOCK_WR, 0, 0, 0) < 0)
369 /* we reuse fd from the resource fork */
370 fd = ad->ad_md->adf_fd;
372 if (ad->ad_eid[ADEID_RFORK].ade_off) {
373 shiftdata = ADEDOFF_RFORK_V2 -ad->ad_eid[ADEID_RFORK].ade_off;
376 shiftdata = ADEDOFF_RFORK_V2 -ADEDOFF_RFORK_V1; /* 136 */
379 if (fstat(fd, &st)) {
383 if (st.st_size > 0x7fffffff -shiftdata) {
384 LOG(log_debug, logtype_default, "ad_v1tov2: file too big.");
389 off = ad->ad_eid[ADEID_RFORK].ade_off;
391 if (off > st.st_size) {
392 LOG(log_error, logtype_default, "ad_v1tov2: invalid resource fork offset. (off: %u)", off);
397 if (ad->ad_eid[ADEID_RFORK].ade_len > st.st_size - off) {
398 LOG(log_error, logtype_default, "ad_v1tov2: invalid resource fork length. (rfork len: %u)", ad->ad_eid[ADEID_RFORK].ade_len);
403 if ((void *) (buf = (char *)
404 mmap(NULL, st.st_size + shiftdata,
405 PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)) ==
410 /* last place for failure. */
412 if (sys_ftruncate(fd, st.st_size + shiftdata) < 0) {
416 /* move the RFORK. this assumes that the RFORK is at the end */
418 memmove(buf + ADEDOFF_RFORK_V2, buf + off, ad->ad_eid[ADEID_RFORK].ade_len);
421 munmap(buf, st.st_size + shiftdata);
423 /* now, fix up our copy of the header */
424 memset(ad->ad_filler, 0, sizeof(ad->ad_filler));
426 /* replace FILEI with FILEDATESI */
427 ad_getattr(ad, &attr);
428 ad->ad_eid[ADEID_FILEDATESI].ade_off = ADEDOFF_FILEDATESI;
429 ad->ad_eid[ADEID_FILEDATESI].ade_len = ADEDLEN_FILEDATESI;
430 ad->ad_eid[ADEID_FILEI].ade_off = 0;
431 ad->ad_eid[ADEID_FILEI].ade_len = 0;
433 /* add in the new entries */
434 ad->ad_eid[ADEID_DID].ade_off = ADEDOFF_DID;
435 ad->ad_eid[ADEID_DID].ade_len = ADEDLEN_DID;
436 ad->ad_eid[ADEID_AFPFILEI].ade_off = ADEDOFF_AFPFILEI;
437 ad->ad_eid[ADEID_AFPFILEI].ade_len = ADEDLEN_AFPFILEI;
438 ad->ad_eid[ADEID_SHORTNAME].ade_off = ADEDOFF_SHORTNAME;
439 ad->ad_eid[ADEID_SHORTNAME].ade_len = ADEDLEN_INIT;
440 ad->ad_eid[ADEID_PRODOSFILEI].ade_off = ADEDOFF_PRODOSFILEI;
441 ad->ad_eid[ADEID_PRODOSFILEI].ade_len = ADEDLEN_PRODOSFILEI;
443 ad->ad_eid[ADEID_PRIVDEV].ade_off = ADEDOFF_PRIVDEV;
444 ad->ad_eid[ADEID_PRIVDEV].ade_len = ADEDLEN_INIT;
445 ad->ad_eid[ADEID_PRIVINO].ade_off = ADEDOFF_PRIVINO;
446 ad->ad_eid[ADEID_PRIVINO].ade_len = ADEDLEN_INIT;
447 ad->ad_eid[ADEID_PRIVSYN].ade_off = ADEDOFF_PRIVSYN;
448 ad->ad_eid[ADEID_PRIVSYN].ade_len = ADEDLEN_INIT;
449 ad->ad_eid[ADEID_PRIVID].ade_off = ADEDOFF_PRIVID;
450 ad->ad_eid[ADEID_PRIVID].ade_len = ADEDLEN_INIT;
452 /* shift the old entries (NAME, COMMENT, FINDERI, RFORK) */
453 ad->ad_eid[ADEID_NAME].ade_off = ADEDOFF_NAME_V2;
454 ad->ad_eid[ADEID_COMMENT].ade_off = ADEDOFF_COMMENT_V2;
455 ad->ad_eid[ADEID_FINDERI].ade_off = ADEDOFF_FINDERI_V2;
456 ad->ad_eid[ADEID_RFORK].ade_off = ADEDOFF_RFORK_V2;
458 /* switch to dest version */
459 ad->ad_version = (toV2)?AD_VERSION2:AD_VERSION1;
461 /* move our data buffer to make space for the new entries. */
462 memmove(ad->ad_data + ADEDOFF_NAME_V2, ad->ad_data + ADEDOFF_NAME_V1,
463 ADEDOFF_RFORK_V1 - ADEDOFF_NAME_V1);
465 /* now, fill in the space with appropriate stuff. we're
466 operating as a v2 file now. */
467 ad_setdate(ad, AD_DATE_ACCESS | AD_DATE_UNIX, st.st_mtime);
468 memset(ad_entry(ad, ADEID_DID), 0, ADEDLEN_DID);
469 memset(ad_entry(ad, ADEID_AFPFILEI), 0, ADEDLEN_AFPFILEI);
470 ad_setattr(ad, attr);
471 memset(ad_entry(ad, ADEID_SHORTNAME), 0, ADEDLEN_SHORTNAME);
472 memset(ad_entry(ad, ADEID_PRODOSFILEI), 0, ADEDLEN_PRODOSFILEI);
474 /* rebuild the header and cleanup */
479 ad_tmplock(ad, ADEID_RFORK, ADLOCK_CLR, 0, 0, 0);
483 #endif /* AD_VERSION == AD_VERSION2 */
485 /* --------------------------- */
487 mode_t ad_hf_mode (mode_t mode)
489 /* we always need RW mode for file owner */
493 mode &= ~(S_IXUSR | S_IXGRP | S_IXOTH);
494 /* fnctl lock need write access */
495 if ((mode & S_IRUSR))
497 if ((mode & S_IRGRP))
499 if ((mode & S_IROTH))
501 /* if write mode set add read mode */
502 if ((mode & S_IWUSR))
504 if ((mode & S_IWGRP))
506 if ((mode & S_IWOTH))
514 /* -------------------------------------
517 static void parse_entries(struct adouble *ad, char *buf,
520 u_int32_t eid, len, off;
523 /* now, read in the entry bits */
524 for (; nentries > 0; nentries-- ) {
525 memcpy(&eid, buf, sizeof( eid ));
526 eid = DISK_EID(ad, ntohl( eid ));
527 buf += sizeof( eid );
528 memcpy(&off, buf, sizeof( off ));
530 buf += sizeof( off );
531 memcpy(&len, buf, sizeof( len ));
533 buf += sizeof( len );
535 if (eid && eid < ADEID_MAX && off < sizeof(ad->ad_data) &&
536 (off +len <= sizeof(ad->ad_data) || eid == ADEID_RFORK)) {
537 ad->ad_eid[ eid ].ade_off = off;
538 ad->ad_eid[ eid ].ade_len = len;
539 } else if (!warning) {
541 LOG(log_debug, logtype_default, "ad_refresh: nentries %hd eid %d",
548 /* this reads enough of the header so that we can figure out all of
549 * the entry lengths and offsets. once that's done, we just read/mmap
550 * the rest of the header in.
552 * NOTE: we're assuming that the resource fork is kept at the end of
553 * the file. also, mmapping won't work for the hfs fs until it
554 * understands how to mmap header files. */
555 static int ad_header_read(struct adouble *ad, struct stat *hst)
557 char *buf = ad->ad_data;
561 static int warning = 0;
564 /* read the header */
565 if ((header_len = adf_pread( ad->ad_md, buf, sizeof(ad->ad_data), 0)) < 0) {
568 if (header_len < AD_HEADER_LEN) {
573 memcpy(&ad->ad_magic, buf, sizeof( ad->ad_magic ));
574 memcpy(&ad->ad_version, buf + ADEDOFF_VERSION, sizeof( ad->ad_version ));
576 /* tag broken v1 headers. just assume they're all right.
577 * we detect two cases: null magic/version
578 * byte swapped magic/version
579 * XXX: in the future, you'll need the v1compat flag.
580 * (ad->ad_flags & ADFLAGS_V1COMPAT) */
581 if (!ad->ad_magic && !ad->ad_version) {
583 LOG(log_debug, logtype_default, "notice: fixing up null v1 magic/version.");
586 ad->ad_magic = AD_MAGIC;
587 ad->ad_version = AD_VERSION1;
589 } else if (ad->ad_magic == AD_MAGIC && ad->ad_version == AD_VERSION1) {
591 LOG(log_debug, logtype_default, "notice: fixing up byte-swapped v1 magic/version.");
596 ad->ad_magic = ntohl( ad->ad_magic );
597 ad->ad_version = ntohl( ad->ad_version );
600 if ((ad->ad_magic != AD_MAGIC) || ((ad->ad_version != AD_VERSION1)
601 #if AD_VERSION == AD_VERSION2
602 && (ad->ad_version != AD_VERSION2)
603 #endif /* AD_VERSION == AD_VERSION2 */
606 LOG(log_debug, logtype_default, "ad_open: can't parse AppleDouble header.");
610 memcpy(ad->ad_filler, buf + ADEDOFF_FILLER, sizeof( ad->ad_filler ));
611 memcpy(&nentries, buf + ADEDOFF_NENTRIES, sizeof( nentries ));
612 nentries = ntohs( nentries );
614 /* read in all the entry headers. if we have more than the
615 * maximum, just hope that the rfork is specified early on. */
616 len = nentries*AD_ENTRY_LEN;
618 if (len + AD_HEADER_LEN > sizeof(ad->ad_data))
619 len = sizeof(ad->ad_data) - AD_HEADER_LEN;
621 buf += AD_HEADER_LEN;
622 if (len > header_len - AD_HEADER_LEN) {
624 LOG(log_debug, logtype_default, "ad_header_read: can't read entry info.");
628 /* figure out all of the entry offsets and lengths. if we aren't
629 * able to read a resource fork entry, bail. */
630 nentries = len / AD_ENTRY_LEN;
631 parse_entries(ad, buf, nentries);
632 if (!ad_getentryoff(ad, ADEID_RFORK)
633 || (ad_getentryoff(ad, ADEID_RFORK) > sizeof(ad->ad_data))
636 LOG(log_debug, logtype_default, "ad_header_read: problem with rfork entry offset.");
640 if (ad_getentryoff(ad, ADEID_RFORK) > header_len) {
642 LOG(log_debug, logtype_default, "ad_header_read: can't read in entries.");
648 if (fstat(ad->ad_md->adf_fd, &st) < 0) {
649 return 1; /* fail silently */
652 ad->ad_rlen = hst->st_size - ad_getentryoff(ad, ADEID_RFORK);
654 /* fix up broken dates */
655 if (ad->ad_version == AD_VERSION1) {
658 /* check to see if the ad date is wrong. just see if we have
659 * a modification date in the future. */
660 if (((ad_getdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, &aint)) == 0) &&
661 (aint > TIMEWARP_DELTA + hst->st_mtime)) {
662 ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, aint - AD_DATE_DELTA);
663 ad_getdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, &aint);
664 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, aint - AD_DATE_DELTA);
665 ad_getdate(ad, AD_DATE_BACKUP | AD_DATE_UNIX, &aint);
666 ad_setdate(ad, AD_DATE_BACKUP | AD_DATE_UNIX, aint - AD_DATE_DELTA);
673 /* ---------------------------
678 byte afpi_Signature[4]; /* Must be 0x00504641 */
679 byte afpi_Version[4]; /* Must be 0x00010000 */
680 byte afpi_Reserved1[4];
681 byte afpi_BackupTime[4]; /* Backup time for the file/dir */
682 byte finderinfo[32]; /* Finder info */
683 byte afpi_ProDosInfo[6]; /* ProDos Info */
684 byte afpi_Reserved2[6];
688 static int ad_header_sfm_read(struct adouble *ad, struct stat *hst)
690 char *buf = ad->ad_data;
691 const struct entry *eid;
695 /* read the header */
696 if ((header_len = adf_pread( ad->ad_md, buf, sizeof(ad->ad_data), 0)) < 0) {
699 if (header_len != AD_SFM_LEN) {
704 memcpy(&ad->ad_magic, buf, sizeof( ad->ad_magic ));
705 memcpy(&ad->ad_version, buf + 4, sizeof( ad->ad_version ));
707 /* FIXME in the great Microsoft tradition they aren't in network order */
709 if (ad->ad_magic == SFM_MAGIC && ad->ad_version == AD_VERSION1) {
710 static int warning = 0;
712 LOG(log_debug, logtype_default, "notice: fixing up byte-swapped v1 magic/version.");
717 ad->ad_magic = ntohl( ad->ad_magic );
718 ad->ad_version = ntohl( ad->ad_version );
721 if ((ad->ad_magic != SFM_MAGIC) || ((ad->ad_version != AD_VERSION1) )) {
723 LOG(log_debug, logtype_default, "ad_header_sfm_read: can't parse AppleDouble header.");
727 /* reinit adouble table */
728 eid = entry_order_sfm;
730 ad->ad_eid[eid->id].ade_off = eid->offset;
731 ad->ad_eid[eid->id].ade_len = eid->len;
735 /* steal some prodos for attribute */
739 memcpy(&attribute, buf + 48 +4, sizeof(attribute));
740 ad_setattr(ad, attribute );
743 if (ad->ad_resource_fork.adf_fd != -1) {
744 /* we have a resource fork use it rather than the metadata */
745 if (fstat(ad->ad_resource_fork.adf_fd, &st) < 0) {
751 ad->ad_rlen = st.st_size;
754 else if (hst == NULL) {
756 if (fstat(ad->ad_md->adf_fd, &st) < 0) {
757 return 1; /* fail silently */
761 /* fix up broken dates */
762 if (ad->ad_version == AD_VERSION1) {
765 /* check to see if the ad date is wrong. just see if we have
766 * a modification date in the future. */
767 if (((ad_getdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, &aint)) == 0) &&
768 (aint > TIMEWARP_DELTA + hst->st_mtime)) {
769 ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, aint - AD_DATE_DELTA);
770 ad_getdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, &aint);
771 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, aint - AD_DATE_DELTA);
772 ad_getdate(ad, AD_DATE_BACKUP | AD_DATE_UNIX, &aint);
773 ad_setdate(ad, AD_DATE_BACKUP | AD_DATE_UNIX, aint - AD_DATE_DELTA);
780 /* ---------------------------------------
781 * Put the .AppleDouble where it needs to be:
785 * \ b/.AppleDouble/.Parent
787 * FIXME: should do something for pathname > MAXPATHLEN
790 ad_path( path, adflags )
794 static char pathbuf[ MAXPATHLEN + 1];
795 char c, *slash, buf[MAXPATHLEN + 1];
798 l = strlcpy(buf, path, MAXPATHLEN +1);
799 if ( adflags & ADFLAGS_DIR ) {
800 strcpy( pathbuf, buf);
801 if ( *buf != '\0' && l < MAXPATHLEN) {
807 if (NULL != ( slash = strrchr( buf, '/' )) ) {
810 strcpy( pathbuf, buf);
817 strlcat( pathbuf, ".AppleDouble/", MAXPATHLEN +1);
818 strlcat( pathbuf, slash, MAXPATHLEN +1);
823 /* -------------------- */
824 static int ad_mkrf(char *path)
828 * Probably .AppleDouble doesn't exist, try to mkdir it.
830 if (NULL == ( slash = strrchr( path, '/' )) ) {
835 if ( ad_mkdir( path, 0777 ) < 0 ) {
842 /* ---------------------------------------
843 * Put the resource fork where it needs to be:
847 ad_path_osx(const char *path, int adflags _U_)
849 static char pathbuf[ MAXPATHLEN + 1];
850 char c, *slash, buf[MAXPATHLEN + 1];
852 if (!strcmp(path,".")) {
854 getcwd(buf, MAXPATHLEN);
857 strlcpy(buf, path, MAXPATHLEN +1);
859 if (NULL != ( slash = strrchr( buf, '/' )) ) {
862 strlcpy( pathbuf, buf, MAXPATHLEN +1);
868 strlcat( pathbuf, "._", MAXPATHLEN +1);
869 strlcat( pathbuf, slash, MAXPATHLEN +1);
872 /* -------------------- */
873 static int ad_mkrf_osx(char *path _U_)
878 /* ---------------------------------------
879 * Put the .AppleDouble where it needs to be:
881 * / a/.AppleDouble/b/AFP_AfpInfo
883 * \ b/.AppleDouble/.Parent/AFP_AfpInfo
887 ad_path_sfm( path, adflags )
891 static char pathbuf[ MAXPATHLEN + 1];
892 char c, *slash, buf[MAXPATHLEN + 1];
895 l = strlcpy(buf, path, MAXPATHLEN +1);
896 if ( adflags & ADFLAGS_DIR ) {
897 strcpy( pathbuf, buf);
898 if ( *buf != '\0' && l < MAXPATHLEN) {
904 if (NULL != ( slash = strrchr( buf, '/' )) ) {
907 strcpy( pathbuf, buf);
914 strlcat( pathbuf, ".AppleDouble/", MAXPATHLEN +1);
915 strlcat( pathbuf, slash, MAXPATHLEN +1);
917 if ((adflags == ADFLAGS_RF)) {
918 strlcat( pathbuf, "/AFP_Resource", MAXPATHLEN +1);
921 strlcat( pathbuf, "/AFP_AfpInfo", MAXPATHLEN +1);
926 /* -------------------- */
927 static int ad_mkrf_sfm(char *path)
931 * Probably .AppleDouble doesn't exist, try to mkdir it.
933 if (NULL == ( slash = strrchr( path, '/' )) ) {
938 if ( ad_mkdir( path, 0777 ) < 0 ) {
939 if ( errno == ENOENT ) {
942 if (NULL == ( slash1 = strrchr( path, '/' )) )
946 if ( ad_mkdir( path, 0777 ) < 0 )
949 if ( ad_mkdir( path, 0777 ) < 0 )
959 /* -------------------------
960 * Support inherited protection modes for AppleDouble files. The supplied
961 * mode is ANDed with the parent directory's mask value in lieu of "umask",
962 * and that value is returned.
965 #define DEFMASK 07700 /* be conservative */
971 static char modebuf[ MAXPATHLEN + 1];
975 if ( (len = strlen( path )) >= MAXPATHLEN ) {
976 errno = ENAMETOOLONG;
977 return NULL; /* can't do it */
981 * For a path with directories in it, remove the final component
982 * (path or subdirectory name) to get the name we want to stat.
983 * For a path which is just a filename, use "." instead.
985 strcpy( modebuf, path );
986 slash = strrchr( modebuf, '/' );
987 /* is last char a '/' */
988 if (slash && slash[1] == 0) {
989 while (modebuf < slash && slash[-1] == '/') {
992 if (modebuf < slash) {
993 *slash = '\0'; /* remove pathname component */
994 slash = strrchr( modebuf, '/' );
998 *slash = '\0'; /* remove pathname component */
1000 modebuf[0] = '.'; /* use current directory */
1006 /* ---------------- */
1007 static uid_t default_uid = -1;
1009 int ad_setfuid(const uid_t id)
1015 /* ---------------- */
1016 uid_t ad_getfuid(void)
1022 return inode of path parent directory
1024 int ad_stat(const char *path, struct stat *stbuf)
1033 return stat( p, stbuf );
1037 if we are root change path user/ group
1038 It can be a native function for BSD cf. FAQ.Q10
1039 path: pathname to chown
1040 stbuf: parent directory inode
1042 use fstat and fchown or lchown with linux?
1044 #define EMULATE_SUIDDIR
1046 static int ad_chown(const char *path, struct stat *stbuf)
1049 #ifdef EMULATE_SUIDDIR
1052 if (default_uid != (uid_t)-1) {
1053 /* we are root (admin) */
1054 id = (default_uid)?default_uid:stbuf->st_uid;
1055 ret = chown( path, id, stbuf->st_gid );
1062 return access right and inode of path parent directory
1064 static int ad_mode_st(const char *path, int *mode, struct stat *stbuf)
1069 if (ad_stat(path, stbuf) != 0) {
1073 *mode &= stbuf->st_mode;
1078 return access right of path parent directory
1081 ad_mode( path, mode )
1086 ad_mode_st(path, &mode, &stbuf);
1091 * Use mkdir() with mode bits taken from ad_mode().
1094 ad_mkdir( path, mode )
1103 LOG(log_info, logtype_default, "ad_mkdir: Creating directory with mode %d", mode);
1106 st_invalid = ad_mode_st(path, &mode, &stbuf);
1107 ret = mkdir( path, mode );
1108 if (ret || st_invalid)
1110 ad_chown(path, &stbuf);
1115 /* ----------------- */
1116 static int ad_error(struct adouble *ad, int adflags)
1119 if ((adflags & ADFLAGS_NOHF)) {
1120 /* FIXME double check : set header offset ?*/
1123 if ((adflags & ADFLAGS_DF)) {
1124 ad_close( ad, ADFLAGS_DF );
1130 static int new_rfork(const char *path, struct adouble *ad, int adflags);
1135 #define AD_SET(a) a = 0
1138 /* --------------------------- */
1139 static int ad_check_size(struct adouble *ad, struct stat *st)
1141 if (st->st_size > 0 && st->st_size < AD_DATASZ1)
1146 /* --------------------------- */
1147 static int ad_check_size_sfm(struct adouble *ad, struct stat *st)
1149 if (st->st_size > 0 && st->st_size < AD_SFM_LEN)
1154 /* --------------------------- */
1155 static int ad_header_upgrade(struct adouble *ad, char *name)
1157 #if AD_VERSION == AD_VERSION2
1159 if ( (ret = ad_convert(ad, name)) < 0 || (ret = ad_update(ad, name) < 0)) {
1166 /* --------------------------- */
1167 static int ad_header_upgrade_none(struct adouble *ad, char *name)
1172 /* --------------------------- */
1173 static struct adouble_fops ad_osx = {
1176 &ad_rebuild_adouble_header,
1183 static struct adouble_fops ad_sfm = {
1186 &ad_rebuild_sfm_header,
1189 &ad_header_sfm_read,
1190 &ad_header_upgrade_none,
1193 static struct adouble_fops ad_adouble = {
1196 &ad_rebuild_adouble_header,
1204 void ad_init(struct adouble *ad, int flags, int options)
1206 memset( ad, 0, sizeof( struct adouble ) );
1207 ad->ad_flags = flags;
1208 if (flags == AD_VERSION2_OSX) {
1209 ad->ad_ops = &ad_osx;
1211 else if (flags == AD_VERSION1_SFM) {
1212 ad->ad_ops = &ad_sfm;
1215 ad->ad_ops = &ad_adouble;
1217 ad->ad_options = options;
1220 /* -------------------
1221 * It's not possible to open the header file O_RDONLY -- the read
1222 * will fail and return an error. this refcounts things now.
1224 int ad_open( path, adflags, oflags, mode, ad )
1226 int adflags, oflags, mode;
1230 struct stat st_meta;
1231 struct stat *pst = NULL;
1233 int hoflags, admode;
1234 int st_invalid = -1;
1237 if (ad->ad_inited != AD_INITED) {
1238 ad_data_fileno(ad) = -1;
1239 ad_reso_fileno(ad) = -1;
1240 adf_lock_init(&ad->ad_data_fork);
1241 adf_lock_init(&ad->ad_resource_fork);
1242 if (ad->ad_flags != AD_VERSION1_SFM) {
1243 ad->ad_md = &ad->ad_resource_fork;
1246 adf_lock_init(&ad->ad_metadata_fork);
1247 ad->ad_md = &ad->ad_metadata_fork;
1248 ad_meta_fileno(ad) = -1;
1250 ad->ad_inited = AD_INITED;
1251 ad->ad_refcount = 1;
1252 ad->ad_open_forks = 0;
1253 ad->ad_adflags = adflags;
1256 ad->ad_open_forks = ((ad->ad_data_fork.adf_refcount > 0) ? ATTRBIT_DOPEN : 0);
1257 /* XXX not true if we have a meta data fork ? */
1258 if ((ad->ad_resource_fork.adf_refcount > ad->ad_data_fork.adf_refcount))
1259 ad->ad_open_forks |= ATTRBIT_ROPEN;
1262 if ((adflags & ADFLAGS_DF)) {
1263 if (ad_data_fileno(ad) == -1) {
1264 hoflags = (oflags & ~(O_RDONLY | O_WRONLY)) | O_RDWR;
1266 if ((oflags & O_CREAT)) {
1267 st_invalid = ad_mode_st(path, &admode, &st_dir);
1268 if ((ad->ad_options & ADVOL_UNIXPRIV)) {
1272 ad->ad_data_fork.adf_fd =open( path, hoflags, admode );
1273 if (ad->ad_data_fork.adf_fd < 0 ) {
1274 if ((errno == EACCES || errno == EROFS) && !(oflags & O_RDWR)) {
1276 ad->ad_data_fork.adf_fd = open( path, hoflags, admode );
1279 if ( ad->ad_data_fork.adf_fd < 0)
1282 AD_SET(ad->ad_data_fork.adf_off);
1283 ad->ad_data_fork.adf_flags = hoflags;
1285 /* just created, set owner if admin (root) */
1286 ad_chown(path, &st_dir);
1290 /* the file is already open... but */
1291 if ((oflags & ( O_RDWR | O_WRONLY)) && /* we want write access */
1292 !(ad->ad_data_fork.adf_flags & ( O_RDWR | O_WRONLY))) /* and it was denied the first time */
1298 * for now ad_open is never called with O_TRUNC or O_EXCL if the file is
1299 * already open. Should we check for it? ie
1301 * O_TRUNC --> truncate the fork.
1302 * idem for ressource fork.
1305 open_df = ADFLAGS_DF;
1306 ad->ad_data_fork.adf_refcount++;
1309 if (!(adflags & ADFLAGS_HF))
1312 /* ****************************************** */
1314 if (ad_meta_fileno(ad) != -1) { /* the file is already open */
1315 if ((oflags & ( O_RDWR | O_WRONLY)) &&
1316 !(ad->ad_md->adf_flags & ( O_RDWR | O_WRONLY))) {
1318 /* don't call with ADFLAGS_HF because we didn't open ressource fork */
1319 ad_close( ad, open_df );
1325 ad->ad_md->adf_refcount++;
1329 ad_p = ad->ad_ops->ad_path( path, adflags );
1331 hoflags = oflags & ~O_CREAT;
1332 if (!(adflags & ADFLAGS_RDONLY)) {
1333 hoflags = (hoflags & ~(O_RDONLY | O_WRONLY)) | O_RDWR;
1335 ad->ad_md->adf_fd = open( ad_p, hoflags, 0 );
1336 if (ad->ad_md->adf_fd < 0 ) {
1337 if ((errno == EACCES || errno == EROFS) && !(oflags & O_RDWR)) {
1338 hoflags = oflags & ~O_CREAT;
1339 ad->ad_md->adf_fd = open( ad_p, hoflags, 0 );
1343 if ( ad->ad_md->adf_fd < 0 ) {
1344 if (errno == ENOENT && (oflags & O_CREAT) ) {
1346 * We're expecting to create a new adouble header file,
1348 * if ((oflags & O_CREAT) ==> (oflags & O_RDWR)
1352 st_invalid = ad_mode_st(ad_p, &admode, &st_dir);
1353 if ((ad->ad_options & ADVOL_UNIXPRIV)) {
1356 admode = ad_hf_mode(admode);
1357 if ( errno == ENOENT && !(adflags & ADFLAGS_NOADOUBLE) && ad->ad_flags != AD_VERSION2_OSX) {
1358 if (ad->ad_ops->ad_mkrf( ad_p) < 0) {
1359 return ad_error(ad, adflags);
1362 st_invalid = ad_mode_st(ad_p, &admode, &st_dir);
1363 if ((ad->ad_options & ADVOL_UNIXPRIV)) {
1366 admode = ad_hf_mode(admode);
1368 /* retry with O_CREAT */
1369 ad->ad_md->adf_fd = open( ad_p, oflags,admode );
1370 if ( ad->ad_md->adf_fd < 0 ) {
1371 return ad_error(ad, adflags);
1373 ad->ad_md->adf_flags = oflags;
1374 /* just created, set owner if admin owner (root) */
1376 ad_chown(ad_p, &st_dir);
1380 return ad_error(ad, adflags);
1382 } else if (fstat(ad->ad_md->adf_fd, &st_meta) == 0 && st_meta.st_size == 0) {
1383 /* for 0 length files, treat them as new. */
1384 ad->ad_md->adf_flags = hoflags| O_TRUNC;
1386 ad->ad_md->adf_flags = hoflags;
1388 AD_SET(ad->ad_md->adf_off);
1390 memset(ad->ad_eid, 0, sizeof( ad->ad_eid ));
1391 ad->ad_md->adf_refcount++;
1392 if ((ad->ad_md->adf_flags & ( O_TRUNC | O_CREAT ))) {
1394 * This is a new adouble header file. Initialize the structure,
1395 * instead of reading it.
1397 if (new_rfork(path, ad, adflags) < 0) {
1399 /* the file is already deleted, perm, whatever, so return an error*/
1400 ad_close(ad, adflags);
1406 /* Read the adouble header in and parse it.*/
1407 if (ad->ad_ops->ad_header_read( ad , pst) < 0
1408 || ad->ad_ops->ad_header_upgrade(ad, ad_p) < 0)
1412 ad_close( ad, adflags );
1418 /* ****************************************** */
1419 /* open the resource fork if SFM */
1421 if (ad->ad_flags != AD_VERSION1_SFM) {
1425 if ((adflags & ADFLAGS_DIR)) {
1426 /* no resource fork for directories / volumes XXX it's false! */
1430 /* untrue yet but ad_close will decremente it*/
1431 ad->ad_resource_fork.adf_refcount++;
1433 if (ad_reso_fileno(ad) != -1) { /* the file is already open */
1434 if ((oflags & ( O_RDWR | O_WRONLY)) &&
1435 !(ad->ad_resource_fork.adf_flags & ( O_RDWR | O_WRONLY))) {
1437 ad_close( ad, open_df | ADFLAGS_HF);
1444 ad_p = ad->ad_ops->ad_path( path, ADFLAGS_RF );
1446 hoflags = (oflags & ~(O_RDONLY | O_WRONLY)) | O_RDWR;
1447 ad->ad_resource_fork.adf_fd = open( ad_p, hoflags, admode );
1449 st_invalid = ad_mode_st(ad_p, &admode, &st_dir);
1451 if ((ad->ad_options & ADVOL_UNIXPRIV)) {
1455 if (ad->ad_resource_fork.adf_fd < 0 ) {
1456 if ((errno == EACCES || errno == EROFS) && !(oflags & O_RDWR)) {
1458 ad->ad_resource_fork.adf_fd =open( ad_p, hoflags, admode );
1462 if ( ad->ad_resource_fork.adf_fd < 0) {
1465 ad_close( ad, adflags );
1470 AD_SET(ad->ad_resource_fork.adf_off);
1471 ad->ad_resource_fork.adf_flags = hoflags;
1472 if ((oflags & O_CREAT) && !st_invalid) {
1473 /* just created, set owner if admin (root) */
1474 ad_chown(ad_p, &st_dir);
1476 else if (!fstat(ad->ad_resource_fork.adf_fd, &st_meta)) {
1477 ad->ad_rlen = st_meta.st_size;
1482 /* -----------------------------------
1483 * return only metadata but try very hard
1485 int ad_metadata(const char *name, int flags, struct adouble *adp)
1489 int dir = flags & ADFLAGS_DIR;
1491 /* Open with O_CREAT, thus enumarating a dir will create missing adouble files, see: */
1492 /* http://marc.info/?l=netatalk-devel&m=124039156832408&w=2 */
1493 if ((ret = ad_open(name, ADFLAGS_HF | dir, O_RDWR | O_CREAT, 0666, adp)) < 0 && errno == EACCES) {
1496 LOG(log_error, logtype_default, "ad_metadata(%s): seteuid failed %s", name, strerror(errno));
1500 /* we are root open read only */
1501 ret = ad_open(name, ADFLAGS_HF|ADFLAGS_RDONLY| dir, O_RDONLY, 0, adp);
1503 if ( seteuid(uid) < 0) {
1504 LOG(log_error, logtype_default, "ad_metadata: can't seteuid back");
1510 if (!ret && (ADFLAGS_OPENFORKS & flags)) {
1511 u_int16_t attrbits = adp->ad_open_forks;
1514 we need to check if the file is open by another process.
1515 it's slow so we only do it if we have to:
1517 - we don't already have the answer!
1520 if (!(attrbits & ATTRBIT_ROPEN)) {
1521 attrbits |= ad_testlock(adp, ADEID_RFORK, AD_FILELOCK_OPEN_RD) > 0? ATTRBIT_ROPEN : 0;
1522 attrbits |= ad_testlock(adp, ADEID_RFORK, AD_FILELOCK_OPEN_WR) > 0? ATTRBIT_ROPEN : 0;
1525 if (!(attrbits & ATTRBIT_DOPEN)) {
1526 attrbits |= ad_testlock(adp, ADEID_DFORK, AD_FILELOCK_OPEN_RD) > 0? ATTRBIT_DOPEN : 0;
1527 attrbits |= ad_testlock(adp, ADEID_DFORK, AD_FILELOCK_OPEN_WR) > 0? ATTRBIT_DOPEN : 0;
1529 adp->ad_open_forks = attrbits;
1534 /* ----------------------------------- */
1535 static int new_rfork(const char *path, struct adouble *ad, int adflags)
1537 const struct entry *eid;
1541 ad->ad_magic = AD_MAGIC;
1542 ad->ad_version = ad->ad_flags & 0x0f0000;
1543 if (!ad->ad_version) {
1544 ad->ad_version = AD_VERSION;
1547 memset(ad->ad_filler, 0, sizeof( ad->ad_filler ));
1548 memset(ad->ad_data, 0, sizeof(ad->ad_data));
1550 #if AD_VERSION == AD_VERSION2
1551 if (ad->ad_flags == AD_VERSION2)
1553 else if (ad->ad_flags == AD_VERSION2_OSX)
1554 eid = entry_order_osx;
1555 else if (ad->ad_flags == AD_VERSION1_SFM) {
1556 ad->ad_magic = SFM_MAGIC;
1557 eid = entry_order_sfm;
1564 ad->ad_eid[eid->id].ade_off = eid->offset;
1565 ad->ad_eid[eid->id].ade_len = eid->len;
1569 /* put something sane in the directory finderinfo */
1570 if ((adflags & ADFLAGS_DIR)) {
1571 /* set default view */
1572 ashort = htons(FINDERINFO_CLOSEDVIEW);
1573 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRVIEWOFF,
1574 &ashort, sizeof(ashort));
1576 /* set default creator/type fields */
1577 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRTYPEOFF,"\0\0\0\0", 4);
1578 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRCREATOFF,"\0\0\0\0", 4);
1581 /* make things invisible */
1582 if ((ad->ad_options & ADVOL_INVDOTS) && !(adflags & ADFLAGS_CREATE) &&
1583 (*path == '.') && strcmp(path, ".") && strcmp(path, ".."))
1585 ashort = htons(ATTRBIT_INVISIBLE);
1586 ad_setattr(ad, ashort);
1587 ashort = htons(FINDERINFO_INVISIBLE);
1588 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRFLAGOFF, &ashort, sizeof(ashort));
1591 if (stat(path, &st) < 0) {
1595 /* put something sane in the date fields */
1596 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, st.st_mtime);
1597 ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, st.st_mtime);
1598 ad_setdate(ad, AD_DATE_ACCESS | AD_DATE_UNIX, st.st_mtime);
1599 ad_setdate(ad, AD_DATE_BACKUP, AD_DATE_START);
1603 /* to do this with mmap, we need the hfs fs to understand how to mmap
1605 int ad_refresh(struct adouble *ad)
1608 if (ad_meta_fileno(ad) < 0)
1611 return ad->ad_ops->ad_header_read(ad, NULL);