2 * $Id: ad_open.c,v 1.22 2002-11-14 17:11:54 srittau 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
29 #endif /* HAVE_CONFIG_H */
34 #endif /* HAVE_FCNTL_H */
37 #endif /* HAVE_UNISTD_H */
39 #include <atalk/logger.h>
42 #include <sys/types.h>
44 #include <sys/param.h>
47 #include <netatalk/endian.h>
48 #include <atalk/adouble.h>
50 #include "ad_private.h"
53 #define MAX(a, b) ((a) < (b) ? (b) : (a))
57 * AppleDouble entry default offsets.
58 * The layout looks like this:
60 * this is the v1 layout:
62 * | NAME | COMMENT | FILEI | FINDERI | RFORK |
64 * we need to change it to look like this:
67 * field length (in bytes)
70 * FILEDATESI 16 replaces FILEI
74 * SHORTNAME 12 8.3 new
77 * so, all we need to do is replace FILEI with FILEDATESI, move RFORK,
78 * and add in the new fields.
80 * NOTE: the HFS module will need similar modifications to interact with
84 #define ADEDOFF_MAGIC (0)
85 #define ADEDOFF_VERSION (ADEDOFF_MAGIC + ADEDLEN_MAGIC)
86 #define ADEDOFF_FILLER (ADEDOFF_VERSION + ADEDLEN_VERSION)
87 #define ADEDOFF_NENTRIES (ADEDOFF_FILLER + ADEDLEN_FILLER)
89 /* initial lengths of some of the fields */
90 #define ADEDLEN_INIT 0
92 /* make sure we don't redefine ADEDOFF_FILEI */
95 #endif /* ADEDOFF_FILEI */
97 #define ADEID_NUM_V1 5
98 #define ADEDOFF_NAME_V1 (AD_HEADER_LEN + ADEID_NUM_V1*AD_ENTRY_LEN)
99 #define ADEDOFF_COMMENT_V1 (ADEDOFF_NAME_V1 + ADEDLEN_NAME)
100 #define ADEDOFF_FILEI (ADEDOFF_COMMENT_V1 + ADEDLEN_COMMENT)
101 #define ADEDOFF_FINDERI_V1 (ADEDOFF_FILEI + ADEDLEN_FILEI)
102 #define ADEDOFF_RFORK_V1 (ADEDOFF_FINDERI_V1 + ADEDLEN_FINDERI)
104 /* i stick things in a slightly different order than their eid order in
105 * case i ever want to separate RootInfo behaviour from the rest of the
107 #define ADEID_NUM_V2 9
108 #define ADEDOFF_NAME_V2 (AD_HEADER_LEN + ADEID_NUM_V2*AD_ENTRY_LEN)
109 #define ADEDOFF_COMMENT_V2 (ADEDOFF_NAME_V2 + ADEDLEN_NAME)
110 #define ADEDOFF_FILEDATESI (ADEDOFF_COMMENT_V2 + ADEDLEN_COMMENT)
111 #define ADEDOFF_FINDERI_V2 (ADEDOFF_FILEDATESI + ADEDLEN_FILEDATESI)
112 #define ADEDOFF_DID (ADEDOFF_FINDERI_V2 + ADEDLEN_FINDERI)
113 #define ADEDOFF_AFPFILEI (ADEDOFF_DID + ADEDLEN_DID)
114 #define ADEDOFF_SHORTNAME (ADEDOFF_AFPFILEI + ADEDLEN_AFPFILEI)
115 #define ADEDOFF_PRODOSFILEI (ADEDOFF_SHORTNAME + ADEDLEN_SHORTNAME)
116 #define ADEDOFF_RFORK_V2 (ADEDOFF_PRODOSFILEI + ADEDLEN_PRODOSFILEI)
120 /* we keep local copies of a bunch of stuff so that we can initialize things
123 /* Bits in the finderinfo data.
124 * see etc/afpd/{directory.c,file.c} for the finderinfo structure
126 #define FINDERINFO_CUSTOMICON 0x4
127 #define FINDERINFO_CLOSEDVIEW 0x100
129 /* offsets in finderinfo */
130 #define FINDERINFO_FRTYPEOFF 0
131 #define FINDERINFO_FRCREATOFF 4
132 #define FINDERINFO_FRFLAGOFF 8
133 #define FINDERINFO_FRVIEWOFF 14
135 /* invisible bit for dot files */
136 #define ATTRBIT_INVISIBLE (1 << 0)
137 #define FINDERINFO_INVISIBLE (1 << 14)
139 /* this is to prevent changing timezones from causing problems with
140 localtime volumes. the screw-up is 30 years. we use a delta of 5
142 #define TIMEWARP_DELTA 157680000
146 u_int32_t id, offset, len;
149 #if AD_VERSION == AD_VERSION1
150 static const struct entry entry_order[] = {
151 {ADEID_NAME, ADEDOFF_NAME_V1, ADEDLEN_INIT},
152 {ADEID_COMMENT, ADEDOFF_COMMENT_V1, ADEDLEN_INIT},
153 {ADEID_FILEI, ADEDOFF_FILEI, ADEDLEN_FILEI},
154 {ADEID_FINDERI, ADEDOFF_FINDERI_V1, ADEDLEN_FINDERI},
155 {ADEID_RFORK, ADEDOFF_RFORK_V1, ADEDLEN_INIT},
158 #else /* AD_VERSION == AD_VERSION2 */
159 static const struct entry entry_order[] = {
160 {ADEID_NAME, ADEDOFF_NAME_V2, ADEDLEN_INIT},
161 {ADEID_COMMENT, ADEDOFF_COMMENT_V2, ADEDLEN_INIT},
162 {ADEID_FILEDATESI, ADEDOFF_FILEDATESI, ADEDLEN_FILEDATESI},
163 {ADEID_FINDERI, ADEDOFF_FINDERI_V2, ADEDLEN_FINDERI},
164 {ADEID_DID, ADEDOFF_DID, ADEDLEN_DID},
165 {ADEID_AFPFILEI, ADEDOFF_AFPFILEI, ADEDLEN_AFPFILEI},
166 {ADEID_SHORTNAME, ADEDOFF_SHORTNAME, ADEDLEN_INIT},
167 {ADEID_PRODOSFILEI, ADEDOFF_PRODOSFILEI, ADEDLEN_PRODOSFILEI},
168 {ADEID_RFORK, ADEDOFF_RFORK_V2, ADEDLEN_INIT},
171 #endif /* AD_VERSION == AD_VERSION2 */
173 #if AD_VERSION == AD_VERSION2
176 static __inline__ int ad_v1tov2(struct adouble *ad, const char *path)
183 /* check to see if we should convert this header. */
184 if (!path || (ad->ad_version != AD_VERSION1))
187 /* convert from v1 to v2. what does this mean?
188 * 1) change FILEI into FILEDATESI
189 * 2) create space for SHORTNAME, AFPFILEI, DID, and PRODOSI
190 * 3) move FILEI attributes into AFPFILEI
191 * 4) initialize ACCESS field of FILEDATESI.
193 * so, we need 4*12 (entry ids) + 12 (shortname) + 4 (afpfilei) +
194 * 4 (did) + 8 (prodosi) = 76 more bytes. */
196 #define SHIFTDATA (AD_DATASZ2 - AD_DATASZ1)
198 /* bail if we can't get a lock */
199 if (ad_tmplock(ad, ADEID_RFORK, ADLOCK_WR, 0, 0) < 0)
202 if ((fd = open(path, O_RDWR)) < 0)
205 if (fstat(fd, &st) ||
206 ftruncate(fd, st.st_size + SHIFTDATA) < 0) {
210 /* last place for failure. */
211 if ((void *) (buf = (char *)
212 mmap(NULL, st.st_size + SHIFTDATA,
213 PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)) ==
218 off = ad->ad_eid[ADEID_RFORK].ade_off;
220 /* move the RFORK. this assumes that the RFORK is at the end */
221 memmove(buf + off + SHIFTDATA, buf + off,
222 ad->ad_eid[ADEID_RFORK].ade_len);
224 /* now, fix up our copy of the header */
225 memset(ad->ad_filler, 0, sizeof(ad->ad_filler));
227 /* replace FILEI with FILEDATESI */
228 ad_getattr(ad, &attr);
229 ad->ad_eid[ADEID_FILEDATESI].ade_off = ADEDOFF_FILEDATESI;
230 ad->ad_eid[ADEID_FILEDATESI].ade_len = ADEDLEN_FILEDATESI;
231 ad->ad_eid[ADEID_FILEI].ade_off = 0;
232 ad->ad_eid[ADEID_FILEI].ade_len = 0;
234 /* add in the new entries */
235 ad->ad_eid[ADEID_DID].ade_off = ADEDOFF_DID;
236 ad->ad_eid[ADEID_DID].ade_len = ADEDLEN_DID;
237 ad->ad_eid[ADEID_AFPFILEI].ade_off = ADEDOFF_AFPFILEI;
238 ad->ad_eid[ADEID_AFPFILEI].ade_len = ADEDLEN_AFPFILEI;
239 ad->ad_eid[ADEID_SHORTNAME].ade_off = ADEDOFF_SHORTNAME;
240 ad->ad_eid[ADEID_SHORTNAME].ade_len = ADEDLEN_INIT;
241 ad->ad_eid[ADEID_PRODOSFILEI].ade_off = ADEDOFF_PRODOSFILEI;
242 ad->ad_eid[ADEID_PRODOSFILEI].ade_len = ADEDLEN_PRODOSFILEI;
244 /* shift the old entries (NAME, COMMENT, FINDERI, RFORK) */
245 ad->ad_eid[ADEID_NAME].ade_off = ADEDOFF_NAME_V2;
246 ad->ad_eid[ADEID_COMMENT].ade_off = ADEDOFF_COMMENT_V2;
247 ad->ad_eid[ADEID_FINDERI].ade_off = ADEDOFF_FINDERI_V2;
248 ad->ad_eid[ADEID_RFORK].ade_off = ADEDOFF_RFORK_V2;
251 ad->ad_version = AD_VERSION2;
253 /* move our data buffer to make space for the new entries. */
254 memmove(buf + ADEDOFF_NAME_V2, buf + ADEDOFF_NAME_V1,
255 ADEDOFF_RFORK_V1 - ADEDOFF_NAME_V1);
257 /* now, fill in the space with appropriate stuff. we're
258 operating as a v2 file now. */
259 ad_setdate(ad, AD_DATE_ACCESS | AD_DATE_UNIX, st.st_mtime);
260 memset(ad_entry(ad, ADEID_DID), 0, ADEDLEN_DID);
261 memset(ad_entry(ad, ADEID_AFPFILEI), 0, ADEDLEN_AFPFILEI);
262 ad_setattr(ad, attr);
263 memset(ad_entry(ad, ADEID_SHORTNAME), 0, ADEDLEN_SHORTNAME);
264 memset(ad_entry(ad, ADEID_PRODOSFILEI), 0, ADEDLEN_PRODOSFILEI);
266 /* rebuild the header and cleanup */
267 ad_rebuild_header(ad);
268 munmap(buf, st.st_size + SHIFTDATA);
270 ad_tmplock(ad, ADEID_RFORK, ADLOCK_CLR, 0, 0);
275 ftruncate(fd, st.st_size);
279 ad_tmplock(ad, ADEID_RFORK, ADLOCK_CLR, 0, 0);
283 #endif /* AD_VERSION == AD_VERSION2 */
286 mode_t ad_hf_mode (mode_t mode)
288 #ifndef USE_FLOCK_LOCKS
289 /* fnctl lock need write access */
290 if ((mode & S_IRUSR))
292 if ((mode & S_IRGRP))
294 if ((mode & S_IROTH))
297 /* if write mode set add read mode */
298 if ((mode & S_IWUSR))
300 if ((mode & S_IWGRP))
302 if ((mode & S_IWOTH))
310 /* -------------------------------------
313 static void parse_entries(struct adouble *ad, char *buf,
316 u_int32_t eid, len, off;
318 /* now, read in the entry bits */
319 for (; nentries > 0; nentries-- ) {
320 memcpy(&eid, buf, sizeof( eid ));
322 buf += sizeof( eid );
323 memcpy(&off, buf, sizeof( off ));
325 buf += sizeof( off );
326 memcpy(&len, buf, sizeof( len ));
328 buf += sizeof( len );
330 if ( 0 < eid && eid < ADEID_MAX ) {
331 ad->ad_eid[ eid ].ade_off = off;
332 ad->ad_eid[ eid ].ade_len = len;
334 LOG(log_debug, logtype_default, "ad_refresh: nentries %hd eid %d\n",
341 /* this reads enough of the header so that we can figure out all of
342 * the entry lengths and offsets. once that's done, we just read/mmap
343 * the rest of the header in.
345 * NOTE: we're assuming that the resource fork is kept at the end of
346 * the file. also, mmapping won't work for the hfs fs until it
347 * understands how to mmap header files. */
348 static int ad_header_read(struct adouble *ad, struct stat *hst)
350 char *buf = ad->ad_data;
354 static int warning = 0;
357 /* read the header */
358 if ((header_len = adf_pread( &ad->ad_hf, buf, sizeof(ad->ad_data), 0)) < 0) {
361 if (header_len < AD_HEADER_LEN) {
366 memcpy(&ad->ad_magic, buf, sizeof( ad->ad_magic ));
367 memcpy(&ad->ad_version, buf + ADEDOFF_VERSION, sizeof( ad->ad_version ));
369 /* tag broken v1 headers. just assume they're all right.
370 * we detect two cases: null magic/version
371 * byte swapped magic/version
372 * XXX: in the future, you'll need the v1compat flag.
373 * (ad->ad_flags & ADFLAGS_V1COMPAT) */
374 if (!ad->ad_magic && !ad->ad_version) {
376 LOG(log_debug, logtype_default, "notice: fixing up null v1 magic/version.");
379 ad->ad_magic = AD_MAGIC;
380 ad->ad_version = AD_VERSION1;
382 } else if (ad->ad_magic == AD_MAGIC && ad->ad_version == AD_VERSION1) {
384 LOG(log_debug, logtype_default, "notice: fixing up byte-swapped v1 magic/version.");
389 ad->ad_magic = ntohl( ad->ad_magic );
390 ad->ad_version = ntohl( ad->ad_version );
393 if ((ad->ad_magic != AD_MAGIC) || ((ad->ad_version != AD_VERSION1)
394 #if AD_VERSION == AD_VERSION2
395 && (ad->ad_version != AD_VERSION2)
396 #endif /* AD_VERSION == AD_VERSION2 */
399 LOG(log_debug, logtype_default, "ad_open: can't parse AppleDouble header.");
403 memcpy(ad->ad_filler, buf + ADEDOFF_FILLER, sizeof( ad->ad_filler ));
404 memcpy(&nentries, buf + ADEDOFF_NENTRIES, sizeof( nentries ));
405 nentries = ntohs( nentries );
407 /* read in all the entry headers. if we have more than the
408 * maximum, just hope that the rfork is specified early on. */
409 len = nentries*AD_ENTRY_LEN;
411 if (len + AD_HEADER_LEN > sizeof(ad->ad_data))
412 len = sizeof(ad->ad_data) - AD_HEADER_LEN;
414 buf += AD_HEADER_LEN;
415 if (len > header_len - AD_HEADER_LEN) {
417 LOG(log_debug, logtype_default, "ad_header_read: can't read entry info.");
421 /* figure out all of the entry offsets and lengths. if we aren't
422 * able to read a resource fork entry, bail. */
423 parse_entries(ad, buf, nentries);
424 if (!ad_getentryoff(ad, ADEID_RFORK)
425 || (ad_getentryoff(ad, ADEID_RFORK) > sizeof(ad->ad_data))
427 LOG(log_debug, logtype_default, "ad_header_read: problem with rfork entry offset.");
431 if (ad_getentryoff(ad, ADEID_RFORK) > header_len) {
433 LOG(log_debug, logtype_default, "ad_header_read: can't read in entries.");
439 if (fstat(ad->ad_hf.adf_fd, &st) < 0) {
440 return 1; /* fail silently */
443 ad->ad_rlen = hst->st_size - ad_getentryoff(ad, ADEID_RFORK);
445 /* fix up broken dates */
446 if (ad->ad_version == AD_VERSION1) {
449 /* check to see if the ad date is wrong. just see if we have
450 * a modification date in the future. */
451 if (((ad_getdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, &aint)) == 0) &&
452 (aint > TIMEWARP_DELTA + hst->st_mtime)) {
453 ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, aint - AD_DATE_DELTA);
454 ad_getdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, &aint);
455 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, aint - AD_DATE_DELTA);
456 ad_getdate(ad, AD_DATE_BACKUP | AD_DATE_UNIX, &aint);
457 ad_setdate(ad, AD_DATE_BACKUP | AD_DATE_UNIX, aint - AD_DATE_DELTA);
466 * Put the .AppleDouble where it needs to be:
470 * \ b/.AppleDouble/.Parent
473 ad_path( path, adflags )
477 static char pathbuf[ MAXPATHLEN + 1];
478 char c, *slash, buf[MAXPATHLEN + 1];
480 strncpy(buf, path, MAXPATHLEN);
481 if ( adflags & ADFLAGS_DIR ) {
482 strncpy( pathbuf, buf, MAXPATHLEN );
483 if ( *buf != '\0' ) {
484 strcat( pathbuf, "/" );
488 if (( slash = strrchr( buf, '/' )) != NULL ) {
491 strncpy( pathbuf, buf, MAXPATHLEN);
498 strncat( pathbuf, ".AppleDouble/", MAXPATHLEN - strlen(pathbuf));
499 strncat( pathbuf, slash, MAXPATHLEN - strlen(pathbuf));
505 * Support inherited protection modes for AppleDouble files. The supplied
506 * mode is ANDed with the parent directory's mask value in lieu of "umask",
507 * and that value is returned.
510 #define DEFMASK 07700 /* be conservative */
516 static char modebuf[ MAXPATHLEN + 1];
519 if ( strlen( path ) >= MAXPATHLEN ) {
520 return NULL; /* can't do it */
524 * For a path with directories in it, remove the final component
525 * (path or subdirectory name) to get the name we want to stat.
526 * For a path which is just a filename, use "." instead.
528 strcpy( modebuf, path );
529 if (( slash = strrchr( modebuf, '/' )) != NULL ) {
530 *slash = '\0'; /* remove pathname component */
532 modebuf[0] = '.'; /* use current directory */
539 ad_mode( path, mode )
547 return( mode ); /* save on syscalls */
551 return( mode & DEFMASK ); /* can't do it */
554 if ( stat( p, &stbuf ) != 0 ) {
555 return( mode & DEFMASK ); /* bail out... can't stat dir? */
558 return( mode & stbuf.st_mode );
562 * Use mkdir() with mode bits taken from ad_mode().
565 ad_mkdir( path, mode )
570 LOG(log_info, logtype_default, "ad_mkdir: Creating directory with mode %d", mode);
572 return mkdir( path, ad_mode( path, mode ) );
576 static int new_rfork(const char *path, struct adouble *ad, int adflags);
581 #define AD_SET(a) a = 0
584 * It's not possible to open the header file O_RDONLY -- the read
585 * will fail and return an error. this refcounts things now.
587 int ad_open( path, adflags, oflags, mode, ad )
589 int adflags, oflags, mode;
596 if (ad->ad_inited != AD_INITED) {
599 adf_lock_init(&ad->ad_df);
600 adf_lock_init(&ad->ad_hf);
601 ad->ad_inited = AD_INITED;
605 if ((adflags & ADFLAGS_DF)) {
606 if (ad_dfileno(ad) == -1) {
607 hoflags = (oflags & ~(O_RDONLY | O_WRONLY)) | O_RDWR;
608 admode = ad_mode( path, mode );
609 if (( ad->ad_df.adf_fd = open( path, hoflags, admode )) < 0 ) {
610 if (errno == EACCES && !(oflags & O_RDWR)) {
612 ad->ad_df.adf_fd =open( path, hoflags, admode );
615 if ( ad->ad_df.adf_fd < 0)
618 AD_SET(ad->ad_df.adf_off);
619 ad->ad_df.adf_flags = hoflags;
622 /* the file is already open... but */
623 if ((oflags & ( O_RDWR | O_WRONLY)) && /* we want write access */
624 !(ad->ad_df.adf_flags & ( O_RDWR | O_WRONLY))) /* and it was denied the first time */
630 ad->ad_df.adf_refcount++;
633 if (!(adflags & ADFLAGS_HF))
636 if (ad_hfileno(ad) != -1) { /* the file is already open */
637 if ((oflags & ( O_RDWR | O_WRONLY)) &&
638 !(ad->ad_hf.adf_flags & ( O_RDWR | O_WRONLY))) {
639 if (adflags & ADFLAGS_DF) {
640 /* don't call with ADFLAGS_HF because we didn't open ressource fork */
641 ad_close( ad, ADFLAGS_DF );
647 ad->ad_hf.adf_refcount++;
651 ad_p = ad_path( path, adflags );
653 hoflags = oflags & ~O_CREAT;
654 hoflags = (hoflags & ~(O_RDONLY | O_WRONLY)) | O_RDWR;
655 if (( ad->ad_hf.adf_fd = open( ad_p, hoflags, 0 )) < 0 ) {
656 if (errno == EACCES && !(oflags & O_RDWR)) {
657 hoflags = oflags & ~O_CREAT;
658 ad->ad_hf.adf_fd = open( ad_p, hoflags, 0 );
662 if ( ad->ad_hf.adf_fd < 0 ) {
663 if (errno == ENOENT && (oflags & O_CREAT) ) {
665 * We're expecting to create a new adouble header file,
667 * if ((oflags & O_CREAT) ==> (oflags & O_RDWR)
669 admode = ad_hf_mode(ad_mode( ad_p, mode ));
671 if (( ad->ad_hf.adf_fd = open( ad_p, oflags,admode )) < 0 ) {
673 * Probably .AppleDouble doesn't exist, try to
676 if (errno == ENOENT && (adflags & ADFLAGS_NOADOUBLE) == 0) {
677 if (( slash = strrchr( ad_p, '/' )) == NULL ) {
678 ad_close( ad, adflags );
683 if ( ad_mkdir( ad_p, 0777 ) < 0 ) {
684 ad_close( ad, adflags );
688 if (( ad->ad_hf.adf_fd =
689 open( ad_p, oflags, ad_mode( ad_p, mode) )) < 0 ) {
690 ad_close( ad, adflags );
694 ad_close( ad, adflags );
698 ad->ad_hf.adf_flags = oflags;
700 ad_close( ad, adflags );
703 } else if (fstat(ad->ad_hf.adf_fd, &st) == 0 && st.st_size == 0) {
704 /* for 0 length files, treat them as new. */
705 ad->ad_hf.adf_flags = (oflags & ~(O_RDONLY | O_WRONLY)) | O_RDWR | O_TRUNC;
707 ad->ad_hf.adf_flags = hoflags;
709 AD_SET(ad->ad_hf.adf_off);
711 memset(ad->ad_eid, 0, sizeof( ad->ad_eid ));
712 if ((ad->ad_hf.adf_flags & ( O_TRUNC | O_CREAT ))) {
714 * This is a new adouble header file. Initialize the structure,
715 * instead of reading it.
717 if (new_rfork(path, ad, adflags) < 0) {
718 ad_close(ad, adflags);
722 /* Read the adouble header in and parse it.*/
723 if ((ad_header_read( ad , &st) < 0)
724 #if AD_VERSION == AD_VERSION2
725 || (ad_v1tov2(ad, ad_p) < 0)
726 #endif /* AD_VERSION == AD_VERSION2 */
728 ad_close( ad, adflags );
732 ad->ad_hf.adf_refcount++;
736 /* ----------------------------------- */
737 static int new_rfork(const char *path, struct adouble *ad, int adflags)
742 const struct entry *eid;
746 ad->ad_magic = AD_MAGIC;
747 ad->ad_version = AD_VERSION;
749 memset(ad->ad_filler, 0, sizeof( ad->ad_filler ));
750 memset(ad->ad_data, 0, sizeof(ad->ad_data));
754 ad->ad_eid[eid->id].ade_off = eid->offset;
755 ad->ad_eid[eid->id].ade_len = eid->len;
759 /* put something sane in the directory finderinfo */
760 if (adflags & ADFLAGS_DIR) {
761 /* set default view */
762 ashort = htons(FINDERINFO_CLOSEDVIEW);
763 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRVIEWOFF,
764 &ashort, sizeof(ashort));
766 /* set default creator/type fields */
767 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRTYPEOFF,"TEXT", 4);
768 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRCREATOFF,"UNIX", 4);
771 /* make things invisible */
772 if ((*path == '.') && strcmp(path, ".") && strcmp(path, "..")) {
773 ashort = htons(ATTRBIT_INVISIBLE);
774 ad_setattr(ad, ashort);
775 ashort = htons(FINDERINFO_INVISIBLE);
776 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRFLAGOFF,
777 &ashort, sizeof(ashort));
781 if (gettimeofday(&tv, NULL) < 0) {
786 if (stat(path, &st) < 0) {
790 /* put something sane in the date fields */
791 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, st.st_mtime);
792 ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, st.st_mtime);
793 ad_setdate(ad, AD_DATE_ACCESS | AD_DATE_UNIX, st.st_mtime);
794 ad_setdate(ad, AD_DATE_BACKUP, AD_DATE_START);
798 /* to do this with mmap, we need the hfs fs to understand how to mmap
800 int ad_refresh(struct adouble *ad)
803 if (ad->ad_hf.adf_fd < -1)
806 return ad_header_read(ad, NULL);