2 * $Id: ad_open.c,v 1.25 2003-01-12 14:40:04 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
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 /* fnctl lock need write access */
289 if ((mode & S_IRUSR))
291 if ((mode & S_IRGRP))
293 if ((mode & S_IROTH))
295 /* if write mode set add read mode */
296 if ((mode & S_IWUSR))
298 if ((mode & S_IWGRP))
300 if ((mode & S_IWOTH))
308 /* -------------------------------------
311 static void parse_entries(struct adouble *ad, char *buf,
314 u_int32_t eid, len, off;
316 /* now, read in the entry bits */
317 for (; nentries > 0; nentries-- ) {
318 memcpy(&eid, buf, sizeof( eid ));
320 buf += sizeof( eid );
321 memcpy(&off, buf, sizeof( off ));
323 buf += sizeof( off );
324 memcpy(&len, buf, sizeof( len ));
326 buf += sizeof( len );
328 if ( 0 < eid && eid < ADEID_MAX ) {
329 ad->ad_eid[ eid ].ade_off = off;
330 ad->ad_eid[ eid ].ade_len = len;
332 LOG(log_debug, logtype_default, "ad_refresh: nentries %hd eid %d\n",
339 /* this reads enough of the header so that we can figure out all of
340 * the entry lengths and offsets. once that's done, we just read/mmap
341 * the rest of the header in.
343 * NOTE: we're assuming that the resource fork is kept at the end of
344 * the file. also, mmapping won't work for the hfs fs until it
345 * understands how to mmap header files. */
346 static int ad_header_read(struct adouble *ad, struct stat *hst)
348 char *buf = ad->ad_data;
352 static int warning = 0;
355 /* read the header */
356 if ((header_len = adf_pread( &ad->ad_hf, buf, sizeof(ad->ad_data), 0)) < 0) {
359 if (header_len < AD_HEADER_LEN) {
364 memcpy(&ad->ad_magic, buf, sizeof( ad->ad_magic ));
365 memcpy(&ad->ad_version, buf + ADEDOFF_VERSION, sizeof( ad->ad_version ));
367 /* tag broken v1 headers. just assume they're all right.
368 * we detect two cases: null magic/version
369 * byte swapped magic/version
370 * XXX: in the future, you'll need the v1compat flag.
371 * (ad->ad_flags & ADFLAGS_V1COMPAT) */
372 if (!ad->ad_magic && !ad->ad_version) {
374 LOG(log_debug, logtype_default, "notice: fixing up null v1 magic/version.");
377 ad->ad_magic = AD_MAGIC;
378 ad->ad_version = AD_VERSION1;
380 } else if (ad->ad_magic == AD_MAGIC && ad->ad_version == AD_VERSION1) {
382 LOG(log_debug, logtype_default, "notice: fixing up byte-swapped v1 magic/version.");
387 ad->ad_magic = ntohl( ad->ad_magic );
388 ad->ad_version = ntohl( ad->ad_version );
391 if ((ad->ad_magic != AD_MAGIC) || ((ad->ad_version != AD_VERSION1)
392 #if AD_VERSION == AD_VERSION2
393 && (ad->ad_version != AD_VERSION2)
394 #endif /* AD_VERSION == AD_VERSION2 */
397 LOG(log_debug, logtype_default, "ad_open: can't parse AppleDouble header.");
401 memcpy(ad->ad_filler, buf + ADEDOFF_FILLER, sizeof( ad->ad_filler ));
402 memcpy(&nentries, buf + ADEDOFF_NENTRIES, sizeof( nentries ));
403 nentries = ntohs( nentries );
405 /* read in all the entry headers. if we have more than the
406 * maximum, just hope that the rfork is specified early on. */
407 len = nentries*AD_ENTRY_LEN;
409 if (len + AD_HEADER_LEN > sizeof(ad->ad_data))
410 len = sizeof(ad->ad_data) - AD_HEADER_LEN;
412 buf += AD_HEADER_LEN;
413 if (len > header_len - AD_HEADER_LEN) {
415 LOG(log_debug, logtype_default, "ad_header_read: can't read entry info.");
419 /* figure out all of the entry offsets and lengths. if we aren't
420 * able to read a resource fork entry, bail. */
421 parse_entries(ad, buf, nentries);
422 if (!ad_getentryoff(ad, ADEID_RFORK)
423 || (ad_getentryoff(ad, ADEID_RFORK) > sizeof(ad->ad_data))
425 LOG(log_debug, logtype_default, "ad_header_read: problem with rfork entry offset.");
429 if (ad_getentryoff(ad, ADEID_RFORK) > header_len) {
431 LOG(log_debug, logtype_default, "ad_header_read: can't read in entries.");
437 if (fstat(ad->ad_hf.adf_fd, &st) < 0) {
438 return 1; /* fail silently */
441 ad->ad_rlen = hst->st_size - ad_getentryoff(ad, ADEID_RFORK);
443 /* fix up broken dates */
444 if (ad->ad_version == AD_VERSION1) {
447 /* check to see if the ad date is wrong. just see if we have
448 * a modification date in the future. */
449 if (((ad_getdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, &aint)) == 0) &&
450 (aint > TIMEWARP_DELTA + hst->st_mtime)) {
451 ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, aint - AD_DATE_DELTA);
452 ad_getdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, &aint);
453 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, aint - AD_DATE_DELTA);
454 ad_getdate(ad, AD_DATE_BACKUP | AD_DATE_UNIX, &aint);
455 ad_setdate(ad, AD_DATE_BACKUP | AD_DATE_UNIX, aint - AD_DATE_DELTA);
464 * Put the .AppleDouble where it needs to be:
468 * \ b/.AppleDouble/.Parent
471 ad_path( path, adflags )
475 static char pathbuf[ MAXPATHLEN + 1];
476 char c, *slash, buf[MAXPATHLEN + 1];
478 strncpy(buf, path, MAXPATHLEN);
479 if ( adflags & ADFLAGS_DIR ) {
480 strncpy( pathbuf, buf, MAXPATHLEN );
481 if ( *buf != '\0' ) {
482 strcat( pathbuf, "/" );
486 if (NULL != ( slash = strrchr( buf, '/' )) ) {
489 strncpy( pathbuf, buf, MAXPATHLEN);
496 strncat( pathbuf, ".AppleDouble/", MAXPATHLEN - strlen(pathbuf));
497 strncat( pathbuf, slash, MAXPATHLEN - strlen(pathbuf));
503 * Support inherited protection modes for AppleDouble files. The supplied
504 * mode is ANDed with the parent directory's mask value in lieu of "umask",
505 * and that value is returned.
508 #define DEFMASK 07700 /* be conservative */
514 static char modebuf[ MAXPATHLEN + 1];
517 if ( strlen( path ) >= MAXPATHLEN ) {
518 return NULL; /* can't do it */
522 * For a path with directories in it, remove the final component
523 * (path or subdirectory name) to get the name we want to stat.
524 * For a path which is just a filename, use "." instead.
526 strcpy( modebuf, path );
527 if (NULL != ( slash = strrchr( modebuf, '/' )) ) {
528 *slash = '\0'; /* remove pathname component */
530 modebuf[0] = '.'; /* use current directory */
537 ad_mode( path, mode )
545 return( mode ); /* save on syscalls */
549 return( mode & DEFMASK ); /* can't do it */
552 if ( stat( p, &stbuf ) != 0 ) {
553 return( mode & DEFMASK ); /* bail out... can't stat dir? */
556 return( mode & stbuf.st_mode );
560 * Use mkdir() with mode bits taken from ad_mode().
563 ad_mkdir( path, mode )
568 LOG(log_info, logtype_default, "ad_mkdir: Creating directory with mode %d", mode);
570 return mkdir( path, ad_mode( path, mode ) );
574 static int new_rfork(const char *path, struct adouble *ad, int adflags);
579 #define AD_SET(a) a = 0
582 * It's not possible to open the header file O_RDONLY -- the read
583 * will fail and return an error. this refcounts things now.
585 int ad_open( path, adflags, oflags, mode, ad )
587 int adflags, oflags, mode;
594 if (ad->ad_inited != AD_INITED) {
597 adf_lock_init(&ad->ad_df);
598 adf_lock_init(&ad->ad_hf);
599 ad->ad_inited = AD_INITED;
603 if ((adflags & ADFLAGS_DF)) {
604 if (ad_dfileno(ad) == -1) {
605 hoflags = (oflags & ~(O_RDONLY | O_WRONLY)) | O_RDWR;
606 admode = ad_mode( path, mode );
607 if (( ad->ad_df.adf_fd = open( path, hoflags, admode )) < 0 ) {
608 if (errno == EACCES && !(oflags & O_RDWR)) {
610 ad->ad_df.adf_fd =open( path, hoflags, admode );
613 if ( ad->ad_df.adf_fd < 0)
616 AD_SET(ad->ad_df.adf_off);
617 ad->ad_df.adf_flags = hoflags;
620 /* the file is already open... but */
621 if ((oflags & ( O_RDWR | O_WRONLY)) && /* we want write access */
622 !(ad->ad_df.adf_flags & ( O_RDWR | O_WRONLY))) /* and it was denied the first time */
628 ad->ad_df.adf_refcount++;
631 if (!(adflags & ADFLAGS_HF))
634 if (ad_hfileno(ad) != -1) { /* the file is already open */
635 if ((oflags & ( O_RDWR | O_WRONLY)) &&
636 !(ad->ad_hf.adf_flags & ( O_RDWR | O_WRONLY))) {
637 if (adflags & ADFLAGS_DF) {
638 /* don't call with ADFLAGS_HF because we didn't open ressource fork */
639 ad_close( ad, ADFLAGS_DF );
645 ad->ad_hf.adf_refcount++;
649 ad_p = ad_path( path, adflags );
651 hoflags = oflags & ~O_CREAT;
652 hoflags = (hoflags & ~(O_RDONLY | O_WRONLY)) | O_RDWR;
653 if (( ad->ad_hf.adf_fd = open( ad_p, hoflags, 0 )) < 0 ) {
654 if (errno == EACCES && !(oflags & O_RDWR)) {
655 hoflags = oflags & ~O_CREAT;
656 ad->ad_hf.adf_fd = open( ad_p, hoflags, 0 );
660 if ( ad->ad_hf.adf_fd < 0 ) {
661 if (errno == ENOENT && (oflags & O_CREAT) ) {
663 * We're expecting to create a new adouble header file,
665 * if ((oflags & O_CREAT) ==> (oflags & O_RDWR)
667 admode = ad_hf_mode(ad_mode( ad_p, mode ));
669 if (( ad->ad_hf.adf_fd = open( ad_p, oflags,admode )) < 0 ) {
671 * Probably .AppleDouble doesn't exist, try to
674 if (errno == ENOENT && (adflags & ADFLAGS_NOADOUBLE) == 0) {
675 if (NULL == ( slash = strrchr( ad_p, '/' )) ) {
676 ad_close( ad, adflags );
681 if ( ad_mkdir( ad_p, 0777 ) < 0 ) {
682 ad_close( ad, adflags );
686 if (( ad->ad_hf.adf_fd =
687 open( ad_p, oflags, ad_mode( ad_p, mode) )) < 0 ) {
688 ad_close( ad, adflags );
692 ad_close( ad, adflags );
696 ad->ad_hf.adf_flags = oflags;
698 ad_close( ad, adflags );
701 } else if (fstat(ad->ad_hf.adf_fd, &st) == 0 && st.st_size == 0) {
702 /* for 0 length files, treat them as new. */
703 ad->ad_hf.adf_flags = (oflags & ~(O_RDONLY | O_WRONLY)) | O_RDWR | O_TRUNC;
705 ad->ad_hf.adf_flags = hoflags;
707 AD_SET(ad->ad_hf.adf_off);
709 memset(ad->ad_eid, 0, sizeof( ad->ad_eid ));
710 ad->ad_hf.adf_refcount++;
711 if ((ad->ad_hf.adf_flags & ( O_TRUNC | O_CREAT ))) {
713 * This is a new adouble header file. Initialize the structure,
714 * instead of reading it.
716 if (new_rfork(path, ad, adflags) < 0) {
717 ad_close(ad, adflags);
721 /* Read the adouble header in and parse it.*/
722 if ((ad_header_read( ad , &st) < 0)
723 #if AD_VERSION == AD_VERSION2
724 || (ad_v1tov2(ad, ad_p) < 0)
725 #endif /* AD_VERSION == AD_VERSION2 */
727 ad_close( ad, adflags );
734 /* ----------------------------------- */
735 static int new_rfork(const char *path, struct adouble *ad, int adflags)
740 const struct entry *eid;
744 ad->ad_magic = AD_MAGIC;
745 ad->ad_version = AD_VERSION;
747 memset(ad->ad_filler, 0, sizeof( ad->ad_filler ));
748 memset(ad->ad_data, 0, sizeof(ad->ad_data));
752 ad->ad_eid[eid->id].ade_off = eid->offset;
753 ad->ad_eid[eid->id].ade_len = eid->len;
757 /* put something sane in the directory finderinfo */
758 if (adflags & ADFLAGS_DIR) {
759 /* set default view */
760 ashort = htons(FINDERINFO_CLOSEDVIEW);
761 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRVIEWOFF,
762 &ashort, sizeof(ashort));
764 /* set default creator/type fields */
765 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRTYPEOFF,"TEXT", 4);
766 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRCREATOFF,"UNIX", 4);
769 /* make things invisible */
770 if ((*path == '.') && strcmp(path, ".") && strcmp(path, "..")) {
771 ashort = htons(ATTRBIT_INVISIBLE);
772 ad_setattr(ad, ashort);
773 ashort = htons(FINDERINFO_INVISIBLE);
774 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRFLAGOFF,
775 &ashort, sizeof(ashort));
779 if (gettimeofday(&tv, NULL) < 0) {
784 if (stat(path, &st) < 0) {
788 /* put something sane in the date fields */
789 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, st.st_mtime);
790 ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, st.st_mtime);
791 ad_setdate(ad, AD_DATE_ACCESS | AD_DATE_UNIX, st.st_mtime);
792 ad_setdate(ad, AD_DATE_BACKUP, AD_DATE_START);
796 /* to do this with mmap, we need the hfs fs to understand how to mmap
798 int ad_refresh(struct adouble *ad)
801 if (ad->ad_hf.adf_fd < -1)
804 return ad_header_read(ad, NULL);