2 * Copyright (c) 1999 Adrian Sun (asun@u.washington.edu)
3 * Copyright (c) 1990,1991 Regents of The University of Michigan.
4 * Copyright (c) 2010 Frank Lahm
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
30 * Part of Netatalk's AppleDouble implementatation
31 * @sa include/atalk/adouble.h
36 #endif /* HAVE_CONFIG_H */
39 #include <sys/param.h>
43 #include <arpa/inet.h>
45 #include <atalk/logger.h>
46 #include <atalk/adouble.h>
47 #include <atalk/util.h>
49 #include <atalk/bstrlib.h>
50 #include <atalk/bstradd.h>
51 #include <atalk/compat.h>
52 #include <atalk/errchk.h>
53 #include <atalk/volume.h>
57 #define ADEDOFF_MAGIC (0)
58 #define ADEDOFF_VERSION (ADEDOFF_MAGIC + ADEDLEN_MAGIC)
59 #define ADEDOFF_FILLER (ADEDOFF_VERSION + ADEDLEN_VERSION)
60 #define ADEDOFF_NENTRIES (ADEDOFF_FILLER + ADEDLEN_FILLER)
62 /* initial lengths of some of the fields */
63 #define ADEDLEN_INIT 0
65 /* i stick things in a slightly different order than their eid order in
66 * case i ever want to separate RootInfo behaviour from the rest of the
70 #define ADEDOFF_NAME_V2 (AD_HEADER_LEN + ADEID_NUM_V2*AD_ENTRY_LEN)
71 #define ADEDOFF_COMMENT_V2 (ADEDOFF_NAME_V2 + ADEDLEN_NAME)
72 #define ADEDOFF_FILEDATESI (ADEDOFF_COMMENT_V2 + ADEDLEN_COMMENT)
73 #define ADEDOFF_FINDERI_V2 (ADEDOFF_FILEDATESI + ADEDLEN_FILEDATESI)
74 #define ADEDOFF_DID (ADEDOFF_FINDERI_V2 + ADEDLEN_FINDERI)
75 #define ADEDOFF_AFPFILEI (ADEDOFF_DID + ADEDLEN_DID)
76 #define ADEDOFF_SHORTNAME (ADEDOFF_AFPFILEI + ADEDLEN_AFPFILEI)
77 #define ADEDOFF_PRODOSFILEI (ADEDOFF_SHORTNAME + ADEDLEN_SHORTNAME)
78 #define ADEDOFF_PRIVDEV (ADEDOFF_PRODOSFILEI + ADEDLEN_PRODOSFILEI)
79 #define ADEDOFF_PRIVINO (ADEDOFF_PRIVDEV + ADEDLEN_PRIVDEV)
80 #define ADEDOFF_PRIVSYN (ADEDOFF_PRIVINO + ADEDLEN_PRIVINO)
81 #define ADEDOFF_PRIVID (ADEDOFF_PRIVSYN + ADEDLEN_PRIVSYN)
82 #define ADEDOFF_RFORK_V2 (ADEDOFF_PRIVID + ADEDLEN_PRIVID)
85 #define ADEDOFF_FINDERI_EA (AD_HEADER_LEN + ADEID_NUM_EA * AD_ENTRY_LEN)
86 #define ADEDOFF_COMMENT_EA (ADEDOFF_FINDERI_EA + ADEDLEN_FINDERI)
87 #define ADEDOFF_FILEDATESI_EA (ADEDOFF_COMMENT_EA + ADEDLEN_COMMENT)
88 #define ADEDOFF_AFPFILEI_EA (ADEDOFF_FILEDATESI_EA + ADEDLEN_FILEDATESI)
90 /* this is to prevent changing timezones from causing problems with
91 localtime volumes. the screw-up is 30 years. we use a delta of 5 years */
92 #define TIMEWARP_DELTA 157680000
95 uint32_t id, offset, len;
98 /* --------------------------- */
99 static uid_t default_uid = -1;
101 /* Forward declarations */
102 static int ad_mkrf(const char *path);
103 static int ad_header_read(const char *path, struct adouble *ad, struct stat *hst);
104 static int ad_header_upgrade(struct adouble *ad, const char *name);
106 static int ad_mkrf_ea(const char *path);
107 static int ad_header_read_ea(const char *path, struct adouble *ad, struct stat *hst);
108 static int ad_header_upgrade_ea(struct adouble *ad, const char *name);
109 static int ad_reso_size(const char *path, int adflags, struct adouble *ad);
110 static int ad_mkrf_osx(const char *path);
113 static struct adouble_fops ad_adouble = {
116 &ad_rebuild_adouble_header,
121 static struct adouble_fops ad_adouble_ea = {
129 &ad_rebuild_adouble_header,
131 &ad_header_upgrade_ea,
134 static struct adouble_fops ad_osx = {
137 &ad_rebuild_adouble_header,
142 static const struct entry entry_order2[ADEID_NUM_V2 + 1] = {
143 {ADEID_NAME, ADEDOFF_NAME_V2, ADEDLEN_INIT},
144 {ADEID_COMMENT, ADEDOFF_COMMENT_V2, ADEDLEN_INIT},
145 {ADEID_FILEDATESI, ADEDOFF_FILEDATESI, ADEDLEN_FILEDATESI},
146 {ADEID_FINDERI, ADEDOFF_FINDERI_V2, ADEDLEN_FINDERI},
147 {ADEID_DID, ADEDOFF_DID, ADEDLEN_DID},
148 {ADEID_AFPFILEI, ADEDOFF_AFPFILEI, ADEDLEN_AFPFILEI},
149 {ADEID_SHORTNAME, ADEDOFF_SHORTNAME, ADEDLEN_INIT},
150 {ADEID_PRODOSFILEI, ADEDOFF_PRODOSFILEI, ADEDLEN_PRODOSFILEI},
151 {ADEID_PRIVDEV, ADEDOFF_PRIVDEV, ADEDLEN_INIT},
152 {ADEID_PRIVINO, ADEDOFF_PRIVINO, ADEDLEN_INIT},
153 {ADEID_PRIVSYN, ADEDOFF_PRIVSYN, ADEDLEN_INIT},
154 {ADEID_PRIVID, ADEDOFF_PRIVID, ADEDLEN_INIT},
155 {ADEID_RFORK, ADEDOFF_RFORK_V2, ADEDLEN_INIT},
159 /* Using Extended Attributes */
160 static const struct entry entry_order_ea[ADEID_NUM_EA + 1] = {
161 {ADEID_FINDERI, ADEDOFF_FINDERI_EA, ADEDLEN_FINDERI},
162 {ADEID_COMMENT, ADEDOFF_COMMENT_EA, ADEDLEN_INIT},
163 {ADEID_FILEDATESI, ADEDOFF_FILEDATESI_EA, ADEDLEN_FILEDATESI},
164 {ADEID_AFPFILEI, ADEDOFF_AFPFILEI_EA, ADEDLEN_AFPFILEI},
165 {ADEID_PRIVID, ADEDOFF_PRIVID, ADEDLEN_INIT},
169 /* fallback for EAs */
170 static const struct entry entry_order_osx[ADEID_NUM_OSX +1] = {
171 {ADEID_FINDERI, ADEDOFF_FINDERI_OSX, ADEDLEN_FINDERI},
172 {ADEID_RFORK, ADEDOFF_RFORK_OSX, ADEDLEN_INIT},
176 #define ADFLAGS2LOGSTRBUFSIZ 128
177 const char *adflags2logstr(int adflags)
180 static char buf[ADFLAGS2LOGSTRBUFSIZ];
184 if (adflags & ADFLAGS_DF) {
185 strlcat(buf, "DF", ADFLAGS2LOGSTRBUFSIZ);
188 if (adflags & ADFLAGS_RF) {
190 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
191 strlcat(buf, "RF", ADFLAGS2LOGSTRBUFSIZ);
194 if (adflags & ADFLAGS_HF) {
196 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
197 strlcat(buf, "HF", ADFLAGS2LOGSTRBUFSIZ);
200 if (adflags & ADFLAGS_NOHF) {
202 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
203 strlcat(buf, "NOHF", ADFLAGS2LOGSTRBUFSIZ);
206 if (adflags & ADFLAGS_DIR) {
208 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
209 strlcat(buf, "DIR", ADFLAGS2LOGSTRBUFSIZ);
212 if (adflags & ADFLAGS_CHECK_OF) {
214 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
215 strlcat(buf, "OF", ADFLAGS2LOGSTRBUFSIZ);
218 if (adflags & ADFLAGS_RDWR) {
220 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
221 strlcat(buf, "O_RDWR", ADFLAGS2LOGSTRBUFSIZ);
224 if (adflags & ADFLAGS_RDONLY) {
226 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
227 strlcat(buf, "O_RDONLY", ADFLAGS2LOGSTRBUFSIZ);
230 if (adflags & ADFLAGS_CREATE) {
232 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
233 strlcat(buf, "O_CREAT", ADFLAGS2LOGSTRBUFSIZ);
236 if (adflags & ADFLAGS_EXCL) {
238 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
239 strlcat(buf, "O_EXCL", ADFLAGS2LOGSTRBUFSIZ);
242 if (adflags & ADFLAGS_TRUNC) {
244 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
245 strlcat(buf, "O_TRUNC", ADFLAGS2LOGSTRBUFSIZ);
252 static uint32_t get_eid(uint32_t eid)
257 return ADEID_PRIVDEV;
259 return ADEID_PRIVINO;
261 return ADEID_PRIVSYN;
268 /* ----------------------------------- */
269 static int new_ad_header(struct adouble *ad, const char *path, struct stat *stp, int adflags)
271 const struct entry *eid;
275 LOG(log_debug, logtype_default, "new_ad_header(\"%s\")", path);
279 if (lstat(path, &st) != 0)
283 ad->ad_magic = AD_MAGIC;
284 ad->ad_version = ad->ad_vers & 0x0f0000;
285 if (!ad->ad_version) {
286 ad->ad_version = AD_VERSION;
289 memset(ad->ad_data, 0, sizeof(ad->ad_data));
291 if (ad->ad_vers == AD_VERSION2)
293 else if (ad->ad_vers == AD_VERSION_EA)
294 eid = entry_order_ea;
295 else if (ad->ad_vers == AD_VERSION2_OSX)
296 eid = entry_order_osx;
302 ad->ad_eid[eid->id].ade_off = eid->offset;
303 ad->ad_eid[eid->id].ade_len = eid->len;
307 /* put something sane in the directory finderinfo */
308 if (ad->ad_vers != AD_VERSION2_OSX) {
309 if ((adflags & ADFLAGS_DIR)) {
310 /* set default view */
311 ashort = htons(FINDERINFO_CLOSEDVIEW);
312 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRVIEWOFF, &ashort, sizeof(ashort));
314 /* set default creator/type fields */
315 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRTYPEOFF,"\0\0\0\0", 4);
316 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRCREATOFF,"\0\0\0\0", 4);
319 /* make things invisible */
320 if ((ad->ad_options & ADVOL_INVDOTS)
322 && !((adflags & ADFLAGS_DIR) && (path[1] == 0))
324 ashort = htons(ATTRBIT_INVISIBLE);
325 ad_setattr(ad, ashort);
326 ashort = htons(FINDERINFO_INVISIBLE);
327 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRFLAGOFF, &ashort, sizeof(ashort));
330 /* put something sane in the date fields */
331 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, stp->st_mtime);
332 ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, stp->st_mtime);
333 ad_setdate(ad, AD_DATE_ACCESS | AD_DATE_UNIX, stp->st_mtime);
334 ad_setdate(ad, AD_DATE_BACKUP, AD_DATE_START);
339 /* -------------------------------------
342 static void parse_entries(struct adouble *ad, char *buf, uint16_t nentries)
344 uint32_t eid, len, off;
347 /* now, read in the entry bits */
348 for (; nentries > 0; nentries-- ) {
349 memcpy(&eid, buf, sizeof( eid ));
350 eid = get_eid(ntohl(eid));
351 buf += sizeof( eid );
352 memcpy(&off, buf, sizeof( off ));
354 buf += sizeof( off );
355 memcpy(&len, buf, sizeof( len ));
357 buf += sizeof( len );
361 && off < sizeof(ad->ad_data)
362 && (off + len <= sizeof(ad->ad_data) || eid == ADEID_RFORK)) {
363 ad->ad_eid[ eid ].ade_off = off;
364 ad->ad_eid[ eid ].ade_len = len;
365 } else if (!warning) {
367 LOG(log_warning, logtype_default, "parse_entries: bogus eid: %d", eid);
372 /* this reads enough of the header so that we can figure out all of
373 * the entry lengths and offsets. once that's done, we just read/mmap
374 * the rest of the header in.
376 * NOTE: we're assuming that the resource fork is kept at the end of
377 * the file. also, mmapping won't work for the hfs fs until it
378 * understands how to mmap header files. */
379 static int ad_header_read(const char *path _U_, struct adouble *ad, struct stat *hst)
381 char *buf = ad->ad_data;
387 /* read the header */
388 if ((header_len = adf_pread( ad->ad_mdp, buf, AD_DATASZ, 0)) < 0) {
391 if (header_len < AD_HEADER_LEN) {
396 memcpy(&ad->ad_magic, buf, sizeof( ad->ad_magic ));
397 memcpy(&ad->ad_version, buf + ADEDOFF_VERSION, sizeof( ad->ad_version ));
398 ad->ad_magic = ntohl( ad->ad_magic );
399 ad->ad_version = ntohl( ad->ad_version );
401 if ((ad->ad_magic != AD_MAGIC) || (ad->ad_version != AD_VERSION2)) {
402 LOG(log_error, logtype_default, "ad_open: can't parse AppleDouble header.");
407 memcpy(&nentries, buf + ADEDOFF_NENTRIES, sizeof( nentries ));
408 nentries = ntohs( nentries );
410 /* read in all the entry headers. if we have more than the
411 * maximum, just hope that the rfork is specified early on. */
412 len = nentries*AD_ENTRY_LEN;
414 if (len + AD_HEADER_LEN > sizeof(ad->ad_data))
415 len = sizeof(ad->ad_data) - AD_HEADER_LEN;
417 buf += AD_HEADER_LEN;
418 if (len > header_len - AD_HEADER_LEN) {
419 LOG(log_error, logtype_default, "ad_header_read: can't read entry info.");
424 /* figure out all of the entry offsets and lengths. if we aren't
425 * able to read a resource fork entry, bail. */
426 nentries = len / AD_ENTRY_LEN;
427 parse_entries(ad, buf, nentries);
428 if (!ad_getentryoff(ad, ADEID_RFORK)
429 || (ad_getentryoff(ad, ADEID_RFORK) > sizeof(ad->ad_data))
431 LOG(log_error, logtype_default, "ad_header_read: problem with rfork entry offset.");
436 if (ad_getentryoff(ad, ADEID_RFORK) > header_len) {
437 LOG(log_error, logtype_default, "ad_header_read: can't read in entries.");
444 if (fstat(ad->ad_mdp->adf_fd, &st) < 0) {
445 return 1; /* fail silently */
449 ad->ad_rlen = hst->st_size - ad_getentryoff(ad, ADEID_RFORK);
454 /* Read an ._ file, only uses the resofork, finderinfo is taken from EA */
455 static int ad_header_read_osx(const char *path _U_, struct adouble *ad, struct stat *hst)
458 struct adouble adosx;
459 char *buf = &adosx.ad_data[0];
465 memset(buf, 0, sizeof(adosx.ad_data));
467 /* read the header */
468 EC_NEG1( header_len = adf_pread(ad->ad_rfp, buf, AD_DATASZ_OSX, 0) );
470 if (header_len < AD_HEADER_LEN) {
475 memcpy(&adosx.ad_magic, buf, sizeof(adosx.ad_magic));
476 memcpy(&adosx.ad_version, buf + ADEDOFF_VERSION, sizeof(adosx.ad_version));
477 adosx.ad_magic = ntohl(adosx.ad_magic);
478 adosx.ad_version = ntohl(adosx.ad_version);
480 if ((adosx.ad_magic != AD_MAGIC) || (adosx.ad_version != AD_VERSION2)) {
481 LOG(log_error, logtype_afpd, "ad_header_read_osx: can't parse AppleDouble header");
486 memcpy(&nentries, buf + ADEDOFF_NENTRIES, sizeof( nentries ));
487 nentries = ntohs(nentries);
488 len = nentries * AD_ENTRY_LEN;
490 if (len + AD_HEADER_LEN > sizeof(adosx.ad_data))
491 len = sizeof(adosx.ad_data) - AD_HEADER_LEN;
493 buf += AD_HEADER_LEN;
494 if (len > header_len - AD_HEADER_LEN) {
495 LOG(log_error, logtype_afpd, "ad_header_read_osx: can't read entry info.");
500 nentries = len / AD_ENTRY_LEN;
501 parse_entries(&adosx, buf, nentries);
503 if (ad_getentryoff(&adosx, ADEID_RFORK) == 0
504 || ad_getentryoff(&adosx, ADEID_RFORK) > sizeof(ad->ad_data)
505 || ad_getentryoff(&adosx, ADEID_RFORK) > header_len
507 LOG(log_error, logtype_afpd, "ad_header_read_osx: problem with rfork entry offset.");
514 EC_NEG1( fstat(ad_reso_fileno(ad), &st) );
517 ad_setentryoff(ad, ADEID_RFORK, ad_getentryoff(&adosx, ADEID_RFORK));
518 ad->ad_rlen = hst->st_size - ad_getentryoff(ad, ADEID_RFORK);
524 static int ad_header_read_ea(const char *path, struct adouble *ad, struct stat *hst _U_)
529 char *buf = ad->ad_data;
531 /* read the header */
532 if ((ad_meta_fileno(ad) == -1)
533 && (ad->ad_adflags & ADFLAGS_RDWR)) {
534 LOG(log_error, logtype_default, "ad_header_read_ea: need filedescriptor for rw access");
538 if (ad_meta_fileno(ad) != -1)
539 header_len = sys_fgetxattr(ad_meta_fileno(ad), AD_EA_META, ad->ad_data, AD_DATASZ_EA);
541 header_len = sys_lgetxattr(path, AD_EA_META, ad->ad_data, AD_DATASZ_EA);
542 if (header_len < 1) {
543 LOG(log_debug, logtype_default, "ad_header_read_ea: %s", strerror(errno));
547 if (header_len < AD_HEADER_LEN) {
548 LOG(log_error, logtype_default, "ad_header_read_ea: bogus AppleDouble header.");
553 memcpy(&ad->ad_magic, buf, sizeof( ad->ad_magic ));
554 memcpy(&ad->ad_version, buf + ADEDOFF_VERSION, sizeof( ad->ad_version ));
556 ad->ad_magic = ntohl( ad->ad_magic );
557 ad->ad_version = ntohl( ad->ad_version );
559 if ((ad->ad_magic != AD_MAGIC) || (ad->ad_version != AD_VERSION2)) {
560 LOG(log_error, logtype_default, "ad_header_read_ea: wrong magic or version");
565 memcpy(&nentries, buf + ADEDOFF_NENTRIES, sizeof( nentries ));
566 nentries = ntohs( nentries );
568 /* Protect against bogus nentries */
569 len = nentries * AD_ENTRY_LEN;
570 if (len + AD_HEADER_LEN > sizeof(ad->ad_data))
571 len = sizeof(ad->ad_data) - AD_HEADER_LEN;
572 if (len > header_len - AD_HEADER_LEN) {
573 LOG(log_error, logtype_default, "ad_header_read_ea: can't read entry info.");
577 nentries = len / AD_ENTRY_LEN;
579 /* Now parse entries */
580 parse_entries(ad, buf + AD_HEADER_LEN, nentries);
586 * Takes a path to an AppleDouble file and creates the parrent .AppleDouble directory
589 * path: "/path/.AppleDouble/file"
590 * => mkdir("/path/.AppleDouble/") (in ad_mkdir())
592 static int ad_mkrf(const char *path)
596 * Probably .AppleDouble doesn't exist, try to mkdir it.
598 if (NULL == ( slash = strrchr( path, '/' )) ) {
603 if ( ad_mkdir( path, 0777 ) < 0 ) {
610 static int ad_mkrf_ea(const char *path _U_)
612 AFP_PANIC("ad_mkrf_ea: dont use");
616 static int ad_mkrf_osx(const char *path _U_)
622 if we are root change path user/ group
623 It can be a native function for BSD cf. FAQ.Q10
624 path: pathname to chown
625 stbuf: parent directory inode
627 use fstat and fchown or lchown with linux?
629 #define EMULATE_SUIDDIR
631 static int ad_chown(const char *path, struct stat *stbuf)
634 #ifdef EMULATE_SUIDDIR
637 if (default_uid != (uid_t)-1) {
638 /* we are root (admin) */
639 id = (default_uid)?default_uid:stbuf->st_uid;
640 ret = lchown( path, id, stbuf->st_gid );
646 #define DEFMASK 07700 /* be conservative */
649 return access right and inode of path parent directory
651 static int ad_mode_st(const char *path, mode_t *mode, struct stat *stbuf)
656 if (ad_stat(path, stbuf) != 0) {
660 *mode &= stbuf->st_mode;
664 /* --------------------------- */
665 static int ad_header_upgrade(struct adouble *ad _U_, const char *name _U_)
670 static int ad_header_upgrade_ea(struct adouble *ad _U_, const char *name _U_)
672 AFP_PANIC("ad_header_upgrade_ea: dont use");
677 * Error handling for adouble header(=metadata) file open error
679 * We're called because opening ADFLAGS_HF caused an error.
680 * 1. In case ad_open is called with ADFLAGS_NOHF the error is suppressed.
681 * 2. If ad_open was called with ADFLAGS_DF we may have opened the datafork and thus
682 * ought to close it before returning with an error condition.
684 static int ad_error(struct adouble *ad, int adflags)
687 if (adflags & ADFLAGS_NOHF) { /* 1 */
690 if (adflags & ADFLAGS_DF) { /* 2 */
691 ad_close( ad, ADFLAGS_DF );
697 /* Map ADFLAGS to open() flags */
698 static int ad2openflags(int adflags)
702 if (adflags & ADFLAGS_RDWR)
704 if (adflags & ADFLAGS_RDONLY) {
705 if (adflags & ADFLAGS_SETSHRMD)
710 if (adflags & ADFLAGS_CREATE)
712 if (adflags & ADFLAGS_EXCL)
714 if (adflags & ADFLAGS_TRUNC)
720 static int ad_open_df(const char *path, int adflags, mode_t mode, struct adouble *ad)
728 LOG(log_debug, logtype_default, "ad_open_df(\"%s\", %04o)",
729 fullpathname(path), mode);
731 if (ad_data_fileno(ad) != -1) {
732 /* the file is already open, but we want write access: */
733 if ((adflags & ADFLAGS_RDWR)
734 /* and it was denied the first time: */
735 && (ad->ad_data_fork.adf_flags & O_RDONLY)) {
739 /* it's not new anymore */
740 ad->ad_data_fork.adf_flags &= ~( O_TRUNC | O_CREAT );
741 ad->ad_data_fork.adf_refcount++;
745 oflags = O_NOFOLLOW | ad2openflags(adflags);
748 if ((adflags & ADFLAGS_CREATE)) {
749 st_invalid = ad_mode_st(path, &admode, &st_dir);
750 if ((ad->ad_options & ADVOL_UNIXPRIV))
754 ad->ad_data_fork.adf_fd = open(path, oflags, admode);
756 if (ad->ad_data_fork.adf_fd == -1) {
761 if ((adflags & ADFLAGS_SETSHRMD) && (adflags & ADFLAGS_RDONLY)) {
764 if ((ad->ad_data_fork.adf_fd = open(path, oflags, admode)) == -1)
769 case OPEN_NOFOLLOW_ERRNO:
770 ad->ad_data_fork.adf_syml = malloc(MAXPATHLEN+1);
771 if ((lsz = readlink(path, ad->ad_data_fork.adf_syml, MAXPATHLEN)) <= 0) {
772 free(ad->ad_data_fork.adf_syml);
775 ad->ad_data_fork.adf_syml[lsz] = 0;
776 ad->ad_data_fork.adf_fd = -2; /* -2 means its a symlink */
784 ad_chown(path, &st_dir); /* just created, set owner if admin (root) */
786 ad->ad_data_fork.adf_flags = oflags;
787 adf_lock_init(&ad->ad_data_fork);
788 ad->ad_data_fork.adf_refcount++;
793 /* TODO: error handling */
794 static int ad_open_hf_v2(const char *path, int adflags, mode_t mode, struct adouble *ad)
798 struct stat *pst = NULL;
800 int oflags, nocreatflags;
804 if (ad_meta_fileno(ad) != -1) {
805 /* the file is already open, but we want write access: */
806 if ((adflags & ADFLAGS_RDWR) &&
807 /* and it was already denied: */
808 (ad->ad_mdp->adf_flags & O_RDONLY)) {
812 ad_refresh(path, ad);
813 /* it's not new anymore */
814 ad->ad_mdp->adf_flags &= ~( O_TRUNC | O_CREAT );
815 ad->ad_mdp->adf_refcount++;
819 ad_p = ad->ad_ops->ad_path(path, adflags);
820 oflags = O_NOFOLLOW | ad2openflags(adflags);
821 nocreatflags = oflags & ~(O_CREAT | O_EXCL);
823 ad->ad_mdp->adf_fd = open(ad_p, nocreatflags);
825 if (ad->ad_mdp->adf_fd != -1) {
826 ad->ad_mdp->adf_flags = nocreatflags;
832 if ((adflags & ADFLAGS_RDONLY) && (adflags & ADFLAGS_SETSHRMD)) {
833 nocreatflags &= ~O_RDWR;
834 nocreatflags |= O_RDONLY;
835 if ((ad->ad_mdp->adf_fd = open(ad_p, nocreatflags)) == -1)
837 ad->ad_mdp->adf_flags = nocreatflags;
842 if (!(oflags & O_CREAT))
843 return ad_error(ad, adflags);
845 * We're expecting to create a new adouble header file here
847 LOG(log_debug, logtype_default, "ad_open(\"%s\"): creating adouble file",
851 st_invalid = ad_mode_st(ad_p, &admode, &st_dir);
852 if ((ad->ad_options & ADVOL_UNIXPRIV))
854 admode = ad_hf_mode(admode);
855 if ((errno == ENOENT) && (ad->ad_vers != AD_VERSION2_OSX)) {
856 if (ad->ad_ops->ad_mkrf( ad_p) < 0) {
857 return ad_error(ad, adflags);
860 st_invalid = ad_mode_st(ad_p, &admode, &st_dir);
861 if ((ad->ad_options & ADVOL_UNIXPRIV))
863 admode = ad_hf_mode(admode);
866 /* retry with O_CREAT */
867 ad->ad_mdp->adf_fd = open(ad_p, oflags, admode);
868 if ( ad->ad_mdp->adf_fd < 0 )
869 return ad_error(ad, adflags);
871 ad->ad_mdp->adf_flags = oflags;
872 /* just created, set owner if admin owner (root) */
874 ad_chown(ad_p, &st_dir);
881 if (!(ad->ad_mdp->adf_flags & O_CREAT)) {
882 /* check for 0 length files, treat them as new. */
883 if (fstat(ad->ad_mdp->adf_fd, &st_meta) == 0) {
884 if (st_meta.st_size == 0)
885 ad->ad_mdp->adf_flags |= O_TRUNC;
887 /* we have valid data in st_meta stat structure, reused it in ad_header_read */
892 adf_lock_init(ad->ad_mdp);
893 ad->ad_mdp->adf_refcount = 1;
895 if ((ad->ad_mdp->adf_flags & ( O_TRUNC | O_CREAT ))) {
896 /* This is a new adouble header file, create it */
897 if (new_ad_header(ad, path, pst, adflags) < 0) {
899 /* the file is already deleted, perm, whatever, so return an error */
900 ad_close(ad, adflags);
906 /* Read the adouble header in and parse it.*/
907 if (ad->ad_ops->ad_header_read(path, ad, pst) < 0
908 || ad->ad_ops->ad_header_upgrade(ad, ad_p) < 0) {
910 ad_close(ad, adflags);
919 /* TODO: error handling */
920 static int ad_open_hf_ea(const char *path, int adflags, int mode, struct adouble *ad)
926 LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\", %s, %04o)",
927 path, adflags2logstr(adflags), mode);
929 oflags = O_NOFOLLOW | (ad2openflags(adflags) & ~(O_CREAT | O_TRUNC));
931 if (ad_meta_fileno(ad) != -1) {
932 /* the file is already open, but we want write access: */
933 if ((oflags & O_RDWR) &&
934 /* and it was already denied: */
935 (ad->ad_mdp->adf_flags & O_RDONLY)) {
936 LOG(log_error, logtype_default, "ad_open_hf_ea(%s): rw request for ro file: %s",
937 fullpathname(path), strerror(errno));
941 /* it's not new anymore */
942 ad->ad_mdp->adf_flags &= ~( O_TRUNC | O_CREAT );
944 if (adflags & ADFLAGS_RDWR) {
945 /* Fo a RDONLY adouble we just use sys_lgetxattr instead if sys_fgetxattr */
946 if (adflags & ADFLAGS_DIR)
947 /* For directories we open the directory RDONYL so we can later fchdir() */
948 oflags = (oflags & ~O_RDWR) | O_RDONLY;
949 LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\"): opening base file for meta adouble EA", path);
950 if ((ad_meta_fileno(ad) = open(path, oflags)) == -1)
953 ad->ad_mdp->adf_flags = oflags;
957 /* Read the adouble header in and parse it.*/
958 if (ad->ad_ops->ad_header_read(path, ad, NULL) != 0) {
959 LOG(log_error, logtype_default, "ad_open_hf_ea: no EA adouble");
961 if (!(adflags & ADFLAGS_CREATE)) {
966 LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\"): creating metadata EA", path);
968 /* It doesnt exist, EPERM or another error */
969 if (!(errno == ENOATTR || errno == ENOENT)) {
970 LOG(log_error, logtype_default, "ad_open_hf_ea: unexpected: %s", strerror(errno));
975 if (new_ad_header(ad, path, NULL, adflags) < 0) {
976 LOG(log_error, logtype_default, "ad_open_hf_ea: can't create new header: %s",
980 ad->ad_mdp->adf_flags |= O_CREAT; /* mark as just created */
982 LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\"): created metadata EA", path);
985 ad->ad_mdp->adf_refcount++;
986 (void)ad_reso_size(path, adflags, ad);
991 if (opened && ad_meta_fileno(ad) != -1) {
992 close(ad_meta_fileno(ad));
993 ad_meta_fileno(ad) = -1;
994 ad->ad_mdp->adf_refcount = 0;
996 (void)ad_reso_size(path, adflags, ad);
1000 static int ad_open_hf(const char *path, int adflags, int mode, struct adouble *ad)
1004 LOG(log_debug, logtype_default, "ad_open_hf(\"%s\", %04o)", path, mode);
1006 memset(ad->ad_eid, 0, sizeof( ad->ad_eid ));
1009 switch (ad->ad_vers) {
1011 ret = ad_open_hf_v2(path, adflags, mode, ad);
1014 ret = ad_open_hf_ea(path, adflags, mode, ad);
1022 return ad_error(ad, adflags);
1028 * Get resofork length for adouble:ea
1030 static int ad_reso_size(const char *path, int adflags, struct adouble *ad)
1035 LOG(log_debug, logtype_default, "ad_reso_size(\"%s\")", path);
1039 int eafd = ad_reso_fileno(ad);
1041 EC_NEG1( eafd = sys_getxattrfd(path, O_RDONLY) );
1044 EC_NEG1( rlen = fstat(eafd, &st) );
1045 ad->ad_rlen = st.st_size;
1048 EC_NULL_LOG( rfpath = ad->ad_ops->ad_path(path, adflags));
1049 EC_ZERO( lstat(rfpath, &st));
1050 if (st.st_size > ADEDOFF_RFORK_OSX)
1051 ad->ad_rlen = st.st_size - ADEDOFF_RFORK_OSX;
1056 LOG(log_debug, logtype_default, "ad_reso_size(\"%s\"): size: %zd", path, ad->ad_rlen);
1069 * Open ressource fork
1071 * Only for adouble:ea, a nullop otherwise because adouble:v2 has the ressource fork as part
1072 * of the adouble file which is openend by ADFLAGS_HF.
1074 static int ad_open_rf(const char *path, int adflags, int mode, struct adouble *ad)
1078 int closeflags = adflags & (ADFLAGS_DF | ADFLAGS_HF);
1085 if (ad->ad_vers != AD_VERSION_EA)
1088 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\", %04o)", path, mode);
1090 oflags = O_NOFOLLOW | (ad2openflags(adflags) & ~O_CREAT);
1092 if (ad_reso_fileno(ad) != -1) {
1093 /* the file is already open, but we want write access: */
1094 if ((adflags & ADFLAGS_RDWR)
1095 /* and it was already denied: */
1096 && (ad->ad_rfp->adf_flags & O_RDONLY)) {
1100 ad->ad_rfp->adf_flags &= ~( O_TRUNC | O_CREAT );
1101 ad->ad_rfp->adf_refcount++;
1102 EC_NEG1_LOG( ad_reso_size(path, adflags, ad));
1106 if ((ad_reso_fileno(ad) = sys_getxattrfd(path, oflags)) == -1) {
1107 if (!(adflags & ADFLAGS_CREATE))
1110 EC_NEG1_LOG( ad_reso_fileno(ad) = sys_getxattrfd(path, oflags, 0666) );
1113 EC_NULL_LOG( rfpath = ad->ad_ops->ad_path(path, adflags) );
1114 if ((ad_reso_fileno(ad) = open(rfpath, oflags)) == -1) {
1115 if (!(adflags & ADFLAGS_CREATE))
1118 EC_NEG1_LOG( ad_reso_fileno(ad) = open(rfpath, oflags, mode) );
1119 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): created adouble rfork: \"%s\"",
1124 ad->ad_rfp->adf_refcount = 1;
1125 ad->ad_rfp->adf_flags = oflags;
1128 EC_ZERO_LOG( fstat(ad_reso_fileno(ad), &st) );
1129 if (ad->ad_rfp->adf_flags & O_CREAT) {
1130 /* This is a new adouble header file, create it */
1131 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): created adouble rfork, initializing: \"%s\"",
1133 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): created adouble rfork, flushing: \"%s\"",
1137 /* Read the adouble header */
1138 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): reading adouble rfork: \"%s\"",
1140 EC_NEG1_LOG( ad_header_read_osx(NULL, ad, &st) );
1144 (void)ad_reso_size(path, adflags, ad);
1148 if (ad_reso_fileno(ad) != -1) {
1149 close(ad_reso_fileno(ad));
1150 ad_reso_fileno(ad) = -1;
1151 ad->ad_rfp->adf_refcount = 0;
1153 if (adflags & ADFLAGS_NORF) {
1157 (void)ad_close(ad, closeflags);
1163 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): END", path);
1168 /***********************************************************************************
1170 ********************************************************************************* */
1172 const char *ad_path_ea( const char *path, int adflags _U_)
1177 const char *ad_path_osx(const char *path, int adflags _U_)
1179 static char pathbuf[ MAXPATHLEN + 1];
1180 char c, *slash, buf[MAXPATHLEN + 1];
1182 if (!strcmp(path,".")) {
1184 getcwd(buf, MAXPATHLEN);
1187 strlcpy(buf, path, MAXPATHLEN +1);
1189 if (NULL != ( slash = strrchr( buf, '/' )) ) {
1192 strlcpy( pathbuf, buf, MAXPATHLEN +1);
1195 pathbuf[ 0 ] = '\0';
1198 strlcat( pathbuf, "._", MAXPATHLEN +1);
1199 strlcat( pathbuf, slash, MAXPATHLEN +1);
1204 * Put the .AppleDouble where it needs to be:
1206 * / a/.AppleDouble/b
1208 * \ b/.AppleDouble/.Parent
1210 * FIXME: should do something for pathname > MAXPATHLEN
1212 const char *ad_path( const char *path, int adflags)
1214 static char pathbuf[ MAXPATHLEN + 1];
1218 if ( adflags & ADFLAGS_DIR ) {
1219 l = strlcpy( pathbuf, path, sizeof(pathbuf));
1221 if ( l && l < MAXPATHLEN) {
1224 strlcpy(pathbuf +l, ".AppleDouble/.Parent", sizeof(pathbuf) -l);
1226 if (NULL != ( slash = strrchr( path, '/' )) ) {
1229 /* XXX we must return NULL here and test in the caller */
1232 memcpy( pathbuf, path, l);
1237 l += strlcpy( pathbuf +l, ".AppleDouble/", sizeof(pathbuf) -l);
1238 strlcpy( pathbuf + l, slash, sizeof(pathbuf) -l);
1244 /* -------------------------
1245 * Support inherited protection modes for AppleDouble files. The supplied
1246 * mode is ANDed with the parent directory's mask value in lieu of "umask",
1247 * and that value is returned.
1249 char *ad_dir(const char *path)
1251 static char modebuf[ MAXPATHLEN + 1];
1254 * For a path with directories in it, remove the final component
1255 * (path or subdirectory name) to get the name we want to stat.
1256 * For a path which is just a filename, use "." instead.
1258 slash = strrchr( path, '/' );
1263 if (len >= MAXPATHLEN) {
1264 errno = ENAMETOOLONG;
1265 return NULL; /* can't do it */
1267 memcpy( modebuf, path, len );
1268 modebuf[len] = '\0';
1269 /* is last char a '/' ? */
1270 if (slash[1] == 0) {
1271 slash = modebuf+ len;
1273 while (modebuf < slash && slash[-1] == '/') {
1276 if (modebuf == slash) {
1280 while (modebuf < slash && *slash != '/') {
1283 if (modebuf == slash) {
1286 *slash = '\0'; /* remove pathname component */
1291 modebuf[0] = '.'; /* use current directory */
1296 int ad_setfuid(const uid_t id)
1302 /* ---------------- */
1303 uid_t ad_getfuid(void)
1309 stat path parent directory
1311 int ad_stat(const char *path, struct stat *stbuf)
1318 return lstat( p, stbuf );
1322 return access right of path parent directory
1324 int ad_mode( const char *path, mode_t mode)
1327 ad_mode_st(path, &mode, &stbuf);
1332 * Use mkdir() with mode bits taken from ad_mode().
1334 int ad_mkdir( const char *path, mode_t mode)
1340 LOG(log_debug, logtype_default, "ad_mkdir(\"%s\", %04o) {cwd: \"%s\"}",
1341 path, mode, getcwdpath());
1343 st_invalid = ad_mode_st(path, &mode, &stbuf);
1344 ret = mkdir( path, mode );
1345 if (ret || st_invalid)
1347 ad_chown(path, &stbuf);
1352 static void ad_init_func(struct adouble *ad)
1354 switch (ad->ad_vers) {
1356 ad->ad_ops = &ad_adouble;
1357 ad->ad_rfp = &ad->ad_resource_fork;
1358 ad->ad_mdp = &ad->ad_resource_fork;
1361 ad->ad_ops = &ad_adouble_ea;
1362 ad->ad_rfp = &ad->ad_resource_fork;
1363 ad->ad_mdp = &ad->ad_data_fork;
1366 AFP_PANIC("ad_init: unknown AD version");
1370 ad_data_fileno(ad) = -1;
1371 ad_reso_fileno(ad) = -1;
1372 ad_meta_fileno(ad) = -1;
1373 ad->ad_refcount = 1;
1377 void ad_init_old(struct adouble *ad, int flags, int options)
1379 memset(ad, 0, sizeof(struct adouble));
1380 ad->ad_vers = flags;
1381 ad->ad_options = options;
1385 void ad_init(struct adouble *ad, const struct vol * restrict vol)
1387 memset(ad, 0, sizeof(struct adouble));
1388 ad->ad_vers = vol->v_adouble;
1389 ad->ad_options = vol->v_ad_options;
1394 * Open data-, metadata(header)- or ressource fork
1396 * ad_open(struct adouble *ad, const char *path, int adflags, int flags)
1397 * ad_open(struct adouble *ad, const char *path, int adflags, int flags, mode_t mode)
1399 * You must call ad_init() before ad_open, usually you'll just call it like this: \n
1402 * ad_init(&ad, vol->v_adouble, vol->v_ad_options);
1405 * Open a files data fork, metadata fork or ressource fork.
1407 * @param ad (rw) pointer to struct adouble
1408 * @param path (r) Path to file or directory
1409 * @param adflags (r) Flags specifying which fork to open, can be or'd:
1410 * ADFLAGS_DF: open data fork
1411 * ADFLAGS_RF: open ressource fork
1412 * ADFLAGS_HF: open header (metadata) file
1413 * ADFLAGS_NOHF: it's not an error if header file couldn't be opened
1414 * ADFLAGS_NORF: it's not an error if reso fork couldn't be opened
1415 * ADFLAGS_DIR: if path is a directory you MUST or ADFLAGS_DIR to adflags
1417 * Access mode for the forks:
1418 * ADFLAGS_RDONLY: open read only
1419 * ADFLAGS_RDWR: open read write
1422 * ADFLAGS_CREATE: create if not existing
1423 * ADFLAGS_TRUNC: truncate
1426 * ADFLAGS_CHECK_OF: check for open forks from us and other afpd's
1427 * ADFLAGS_SETSHRMD: this adouble struct will be used to set sharemode locks.
1428 * This basically results in the files being opened RW instead of RDONLY.
1429 * @param mode (r) mode used with O_CREATE
1431 * The open mode flags (rw vs ro) have to take into account all the following requirements:
1432 * - we remember open fds for files because me must avoid a single close releasing fcntl locks for other
1433 * fds of the same file
1435 * @returns 0 on success, any other value indicates an error
1437 int ad_open(struct adouble *ad, const char *path, int adflags, ...)
1443 LOG(log_debug, logtype_default, "ad_open(\"%s\", %s)",
1444 fullpathname(path), adflags2logstr(adflags));
1446 LOG(log_debug, logtype_default,
1447 "ad_open(\"%s\", %s) [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1448 fullpathname(path), adflags2logstr(adflags),
1449 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1450 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1451 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1453 if (adflags & ADFLAGS_CHECK_OF)
1454 /* Checking for open forks requires sharemode lock support (ie RDWR instead of RDONLY) */
1455 adflags |= ADFLAGS_SETSHRMD;
1457 if ((ad->ad_vers == AD_VERSION2) && (adflags & ADFLAGS_RF)) {
1458 adflags |= ADFLAGS_HF;
1459 if (adflags & ADFLAGS_NORF)
1460 adflags |= ADFLAGS_NOHF;
1463 if (ad->ad_inited != AD_INITED) {
1464 ad->ad_adflags = adflags;
1465 ad->ad_inited = AD_INITED;
1467 ad->ad_open_forks = ((ad->ad_data_fork.adf_refcount > 0) ? ATTRBIT_DOPEN : 0);
1468 if (ad->ad_resource_fork.adf_refcount > 0)
1469 ad->ad_open_forks |= ATTRBIT_ROPEN;
1472 va_start(args, adflags);
1473 if (adflags & ADFLAGS_CREATE)
1474 mode = va_arg(args, mode_t);
1477 if (adflags & ADFLAGS_DF) {
1478 EC_ZERO( ad_open_df(path, adflags, mode, ad) );
1481 if (adflags & ADFLAGS_HF) {
1482 EC_ZERO( ad_open_hf(path, adflags, mode, ad) );
1485 if (adflags & ADFLAGS_RF) {
1486 EC_ZERO( ad_open_rf(path, adflags, mode, ad) );
1489 if (adflags & ADFLAGS_CHECK_OF) {
1490 ad->ad_open_forks |= ad_openforks(ad, ad->ad_open_forks);
1494 LOG(log_debug, logtype_default,
1495 "ad_open(\"%s\"): result: %d [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1496 fullpathname(path), ret,
1497 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1498 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1499 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1505 * @brief open metadata, possibly as root
1507 * Return only metadata but try very hard ie at first try as user, then try as root.
1509 * @param name name of file/dir
1510 * @param flags ADFLAGS_DIR: name is a directory \n
1511 * ADFLAGS_CHECK_OF: test if name is open by us or another afpd process
1513 * @param adp pointer to struct adouble
1515 int ad_metadata(const char *name, int flags, struct adouble *adp)
1518 int ret, err, oflags;
1520 /* Sanitize flags */
1521 oflags = (flags & (ADFLAGS_CHECK_OF | ADFLAGS_DIR)) | ADFLAGS_HF | ADFLAGS_RDONLY;
1523 if ((ret = ad_open(adp, name, oflags)) < 0 && errno == EACCES) {
1526 LOG(log_error, logtype_default, "ad_metadata(%s): seteuid failed %s", name, strerror(errno));
1530 /* we are root open read only */
1531 ret = ad_open(adp, name, oflags);
1533 if ( seteuid(uid) < 0) {
1534 LOG(log_error, logtype_default, "ad_metadata: can't seteuid back");
1544 * @brief openat like wrapper for ad_metadata
1546 int ad_metadataat(int dirfd, const char *name, int flags, struct adouble *adp)
1552 if ((cwdfd = open(".", O_RDONLY) == -1) || (fchdir(dirfd) != 0)) {
1558 if (ad_metadata(name, flags, adp) < 0) {
1565 if (fchdir(cwdfd) != 0) {
1566 LOG(log_error, logtype_afpd, "ad_openat: cant chdir back, exiting");
1579 int ad_refresh(const char *path, struct adouble *ad)
1581 switch (ad->ad_vers) {
1583 if (ad_meta_fileno(ad) == -1)
1585 return ad->ad_ops->ad_header_read(NULL, ad, NULL);
1589 if (AD_META_OPEN(ad)) {
1590 if (ad_data_fileno(ad) == -1)
1592 // TODO: read meta EA
1595 if (AD_RSRC_OPEN(ad)) {
1596 if (ad_reso_fileno(ad) == -1)
1599 if ((len = fstat(ad_reso_fileno(ad))) == -1)
1604 if (AD_META_OPEN(ad)) {
1605 if (ad_data_fileno(ad) == -1)
1607 // TODO: read meta EA
1609 if (AD_RSRC_OPEN(ad)) {
1610 if (ad_reso_fileno(ad) == -1)
1612 if (ad_header_read_osx(path, ad, NULL) < 0)
1616 return ad->ad_ops->ad_header_read(path, ad, NULL);
1625 int ad_openat(struct adouble *ad,
1626 int dirfd, /* dir fd openat like */
1636 if ((cwdfd = open(".", O_RDONLY) == -1) || (fchdir(dirfd) != 0))
1640 va_start(args, adflags);
1641 if (adflags & ADFLAGS_CREATE)
1642 mode = va_arg(args, mode_t);
1645 EC_NEG1( ad_open(ad, path, adflags, mode) );
1648 if (fchdir(cwdfd) != 0) {
1649 AFP_PANIC("ad_openat: cant chdir back");