/*
- * $Id: ad_open.c,v 1.12 2002-01-04 04:45:48 sibaz Exp $
+ * $Id: ad_open.c,v 1.30.6.18.2.8 2008-11-25 15:16:33 didg Exp $
*
* Copyright (c) 1999 Adrian Sun (asun@u.washington.edu)
* Copyright (c) 1990,1991 Regents of The University of Michigan.
* Ann Arbor, Michigan
* +1-313-763-0525
* netatalk@itd.umich.edu
+ *
+ * NOTE: I don't use inline because a good compiler should be
+ * able to optimize all the static below. Didier
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
-#include <string.h>
-#ifdef HAVE_FCNTL_H
-#include <fcntl.h>
-#endif /* HAVE_FCNTL_H */
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif /* HAVE_UNISTD_H */
#include <errno.h>
-#include <atalk/logger.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/stat.h>
+#include <atalk/adouble.h>
#include <sys/param.h>
-#include <sys/mman.h>
+#include <atalk/logger.h>
-#include <netatalk/endian.h>
-#include <atalk/adouble.h>
+#include <atalk/util.h>
+#include <string.h>
#include "ad_private.h"
+#include <stdlib.h>
#ifndef MAX
#define MAX(a, b) ((a) < (b) ? (b) : (a))
#undef ADEDOFF_FILEI
#endif /* ADEDOFF_FILEI */
-#define ADEID_NUM_V1 5
#define ADEDOFF_NAME_V1 (AD_HEADER_LEN + ADEID_NUM_V1*AD_ENTRY_LEN)
#define ADEDOFF_COMMENT_V1 (ADEDOFF_NAME_V1 + ADEDLEN_NAME)
#define ADEDOFF_FILEI (ADEDOFF_COMMENT_V1 + ADEDLEN_COMMENT)
/* i stick things in a slightly different order than their eid order in
* case i ever want to separate RootInfo behaviour from the rest of the
* stuff. */
-#define ADEID_NUM_V2 9
#define ADEDOFF_NAME_V2 (AD_HEADER_LEN + ADEID_NUM_V2*AD_ENTRY_LEN)
#define ADEDOFF_COMMENT_V2 (ADEDOFF_NAME_V2 + ADEDLEN_NAME)
#define ADEDOFF_FILEDATESI (ADEDOFF_COMMENT_V2 + ADEDLEN_COMMENT)
#define ADEDOFF_AFPFILEI (ADEDOFF_DID + ADEDLEN_DID)
#define ADEDOFF_SHORTNAME (ADEDOFF_AFPFILEI + ADEDLEN_AFPFILEI)
#define ADEDOFF_PRODOSFILEI (ADEDOFF_SHORTNAME + ADEDLEN_SHORTNAME)
-#define ADEDOFF_RFORK_V2 (ADEDOFF_PRODOSFILEI + ADEDLEN_PRODOSFILEI)
+#define ADEDOFF_PRIVDEV (ADEDOFF_PRODOSFILEI + ADEDLEN_PRODOSFILEI)
+#define ADEDOFF_PRIVINO (ADEDOFF_PRIVDEV + ADEDLEN_PRIVDEV)
+#define ADEDOFF_PRIVSYN (ADEDOFF_PRIVINO + ADEDLEN_PRIVINO)
+#define ADEDOFF_PRIVID (ADEDOFF_PRIVSYN + ADEDLEN_PRIVSYN)
+#define ADEDOFF_RFORK_V2 (ADEDOFF_PRIVID + ADEDLEN_PRIVID)
+#define ADEID_NUM_OSX 2
+#define ADEDOFF_FINDERI_OSX (AD_HEADER_LEN + ADEID_NUM_OSX*AD_ENTRY_LEN)
+#define ADEDOFF_RFORK_OSX (ADEDOFF_FINDERI_OSX + ADEDLEN_FINDERI)
/* we keep local copies of a bunch of stuff so that we can initialize things
* correctly. */
-/* Bits in the finderinfo data.
- * see etc/afpd/{directory.c,file.c} for the finderinfo structure
- * layout. */
-#define FINDERINFO_CUSTOMICON 0x4
-#define FINDERINFO_CLOSEDVIEW 0x100
-
-/* offsets in finderinfo */
-#define FINDERINFO_FRTYPEOFF 0
-#define FINDERINFO_FRCREATOFF 4
-#define FINDERINFO_FRFLAGOFF 8
-#define FINDERINFO_FRVIEWOFF 14
-
/* invisible bit for dot files */
#define ATTRBIT_INVISIBLE (1 << 0)
-#define FINDERINFO_INVISIBLE (1 << 14)
/* this is to prevent changing timezones from causing problems with
localtime volumes. the screw-up is 30 years. we use a delta of 5
u_int32_t id, offset, len;
};
-#if AD_VERSION == AD_VERSION1
-static const struct entry entry_order[] = {
- {ADEID_NAME, ADEDOFF_NAME_V1, ADEDLEN_INIT},
- {ADEID_COMMENT, ADEDOFF_COMMENT_V1, ADEDLEN_INIT},
- {ADEID_FILEI, ADEDOFF_FILEI, ADEDLEN_FILEI},
- {ADEID_FINDERI, ADEDOFF_FINDERI_V1, ADEDLEN_FINDERI},
- {ADEID_RFORK, ADEDOFF_RFORK_V1, ADEDLEN_INIT},
+static const struct entry entry_order1[ADEID_NUM_V1 +1] = {
+ {ADEID_NAME, ADEDOFF_NAME_V1, ADEDLEN_INIT}, /* 3 */
+ {ADEID_COMMENT, ADEDOFF_COMMENT_V1, ADEDLEN_INIT}, /* 4 */
+ {ADEID_FILEI, ADEDOFF_FILEI, ADEDLEN_FILEI}, /* 7 */
+ {ADEID_FINDERI, ADEDOFF_FINDERI_V1, ADEDLEN_FINDERI}, /* 9 */
+ {ADEID_RFORK, ADEDOFF_RFORK_V1, ADEDLEN_INIT}, /* 2 */
{0, 0, 0}
};
+
+#if AD_VERSION == AD_VERSION1
+#define DISK_EID(ad, a) (a)
+
#else /* AD_VERSION == AD_VERSION2 */
-static const struct entry entry_order[] = {
+
+static u_int32_t get_eid(struct adouble *ad, u_int32_t eid)
+{
+ if (eid <= 15)
+ return eid;
+ if (ad->ad_version == AD_VERSION1)
+ return 0;
+ if (eid == AD_DEV)
+ return ADEID_PRIVDEV;
+ if (eid == AD_INO)
+ return ADEID_PRIVINO;
+ if (eid == AD_SYN)
+ return ADEID_PRIVSYN;
+ if (eid == AD_ID)
+ return ADEID_PRIVID;
+
+ return 0;
+}
+
+#define DISK_EID(ad, a) get_eid(ad, a)
+
+static const struct entry entry_order2[ADEID_NUM_V2 +1] = {
{ADEID_NAME, ADEDOFF_NAME_V2, ADEDLEN_INIT},
{ADEID_COMMENT, ADEDOFF_COMMENT_V2, ADEDLEN_INIT},
{ADEID_FILEDATESI, ADEDOFF_FILEDATESI, ADEDLEN_FILEDATESI},
{ADEID_AFPFILEI, ADEDOFF_AFPFILEI, ADEDLEN_AFPFILEI},
{ADEID_SHORTNAME, ADEDOFF_SHORTNAME, ADEDLEN_INIT},
{ADEID_PRODOSFILEI, ADEDOFF_PRODOSFILEI, ADEDLEN_PRODOSFILEI},
+ {ADEID_PRIVDEV, ADEDOFF_PRIVDEV, ADEDLEN_INIT},
+ {ADEID_PRIVINO, ADEDOFF_PRIVINO, ADEDLEN_INIT},
+ {ADEID_PRIVSYN, ADEDOFF_PRIVSYN, ADEDLEN_INIT},
+ {ADEID_PRIVID, ADEDOFF_PRIVID, ADEDLEN_INIT},
{ADEID_RFORK, ADEDOFF_RFORK_V2, ADEDLEN_INIT},
+
{0, 0, 0}
};
+
+/* OS X adouble finder info and resource fork only
+*/
+static const struct entry entry_order_osx[ADEID_NUM_OSX +1] = {
+ {ADEID_FINDERI, ADEDOFF_FINDERI_OSX, ADEDLEN_FINDERI},
+ {ADEID_RFORK, ADEDOFF_RFORK_OSX, ADEDLEN_INIT},
+
+ {0, 0, 0}
+};
+
#endif /* AD_VERSION == AD_VERSION2 */
#if AD_VERSION == AD_VERSION2
+/* update a version 2 adouble resource fork with our private entries */
+static int ad_update(struct adouble *ad, const char *path)
+{
+ struct stat st;
+ u_int16_t nentries = 0;
+ off_t off, shiftdata=0;
+ const struct entry *eid;
+ static off_t entry_len[ADEID_MAX];
+ static char databuf[ADEID_MAX][256], *buf;
+ int fd;
+ int ret = -1;
+
+ /* check to see if we should convert this header. */
+ if (!path || ad->ad_flags != AD_VERSION2)
+ return 0;
+
+ if (!(ad->ad_hf.adf_flags & O_RDWR)) {
+ /* we were unable to open the file read write the last time */
+ return 0;
+ }
+
+ if (ad->ad_eid[ADEID_RFORK].ade_off) {
+ shiftdata = ADEDOFF_RFORK_V2 -ad->ad_eid[ADEID_RFORK].ade_off;
+ }
+
+ memcpy(&nentries, ad->ad_data + ADEDOFF_NENTRIES, sizeof( nentries ));
+ nentries = ntohs( nentries );
+
+ if ( shiftdata == 0 && nentries == ADEID_NUM_V2)
+ return 0;
+
+ memset(entry_len, 0, sizeof(entry_len));
+ memset(databuf, 0, sizeof(databuf));
+
+ /* bail if we can't get a lock */
+ if (ad_tmplock(ad, ADEID_RFORK, ADLOCK_WR, 0, 0, 0) < 0)
+ goto bail_err;
+
+ fd = ad->ad_hf.adf_fd;
+
+ if (fstat(fd, &st)) {
+ goto bail_lock;
+ }
+
+ if (st.st_size > 0x7fffffff) {
+ LOG(log_debug, logtype_default, "ad_update: file '%s' too big for update.", path);
+ errno = EIO;
+ goto bail_lock;
+ }
+
+ off = ad->ad_eid[ADEID_RFORK].ade_off;
+ if (off > st.st_size) {
+ LOG(log_error, logtype_default, "ad_update: invalid resource fork offset. (off: %u)", off);
+ errno = EIO;
+ goto bail_lock;
+ }
+
+ if (ad->ad_eid[ADEID_RFORK].ade_len > st.st_size - off) {
+ LOG(log_error, logtype_default, "ad_update: invalid resource fork length. (rfork len: %u)", ad->ad_eid[ADEID_RFORK].ade_len);
+ errno = EIO;
+ goto bail_lock;
+ }
+
+ if ((void *) (buf = (char *)
+ mmap(NULL, st.st_size + shiftdata,
+ PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)) ==
+ MAP_FAILED) {
+ goto bail_lock;
+ }
+
+ /* last place for failure. */
+ if (sys_ftruncate(fd, st.st_size + shiftdata) < 0) {
+ goto bail_lock;
+ }
+
+ /* move the RFORK. this assumes that the RFORK is at the end */
+ if (off) {
+ memmove(buf + ADEDOFF_RFORK_V2, buf + off, ad->ad_eid[ADEID_RFORK].ade_len);
+ }
+
+ munmap(buf, st.st_size + shiftdata);
+
+ /* now, fix up our copy of the header */
+ memset(ad->ad_filler, 0, sizeof(ad->ad_filler));
+
+ /* save the header entries */
+ eid = entry_order2;
+ while (eid->id) {
+ if( ad->ad_eid[eid->id].ade_off != 0) {
+ if ( eid->id > 2 && ad->ad_eid[eid->id].ade_len < 256)
+ memcpy( databuf[eid->id], ad->ad_data +ad->ad_eid[eid->id].ade_off, ad->ad_eid[eid->id].ade_len);
+ entry_len[eid->id] = ad->ad_eid[eid->id].ade_len;
+ }
+ eid++;
+ }
-static __inline__ int ad_v1tov2(struct adouble *ad, const char *path)
+ memset(ad->ad_data + AD_HEADER_LEN, 0, AD_DATASZ - AD_HEADER_LEN);
+
+ /* copy the saved entries to the new header */
+ eid = entry_order2;
+ while (eid->id) {
+ if ( eid->id > 2 && entry_len[eid->id] > 0) {
+ memcpy(ad->ad_data+eid->offset, databuf[eid->id], entry_len[eid->id]);
+ }
+ ad->ad_eid[eid->id].ade_off = eid->offset;
+ ad->ad_eid[eid->id].ade_len = entry_len[eid->id];
+ eid++;
+ }
+
+ /* rebuild the header and cleanup */
+ LOG(log_debug, logtype_default, "updated AD2 header %s", path);
+ ad_flush(ad, ADFLAGS_HF );
+ ret = 0;
+
+bail_lock:
+ ad_tmplock(ad, ADEID_RFORK, ADLOCK_CLR, 0, 0, 0);
+bail_err:
+ return ret;
+}
+
+/* ------------------------------------------
+ FIXME work only if < 2GB
+*/
+static int ad_convert(struct adouble *ad, const char *path)
{
struct stat st;
- struct timeval tv;
u_int16_t attr;
char *buf;
int fd, off;
+ int ret = -1;
+ /* use resource fork offset from file */
+ int shiftdata;
+ int toV2;
+ int toV1;
+
+ if (!path) {
+ return 0;
+ }
+ if (!(ad->ad_hf.adf_flags & ( O_RDWR))) {
+ /* we were unable to open the file read write the last time */
+ return 0;
+ }
+
/* check to see if we should convert this header. */
- if (!path || (ad->ad_version != AD_VERSION1))
- return 0;
+ toV2 = ad->ad_version == AD_VERSION1 && ad->ad_flags == AD_VERSION2;
+ toV1 = ad->ad_version == AD_VERSION2 && ad->ad_flags == AD_VERSION1;
+
+ if (!toV2 && !toV1)
+ return 0;
/* convert from v1 to v2. what does this mean?
* 1) change FILEI into FILEDATESI
* 2) create space for SHORTNAME, AFPFILEI, DID, and PRODOSI
* 3) move FILEI attributes into AFPFILEI
* 4) initialize ACCESS field of FILEDATESI.
- *
- * so, we need 4*12 (entry ids) + 12 (shortname) + 4 (afpfilei) +
- * 4 (did) + 8 (prodosi) = 76 more bytes. */
+ * 5) move the resource fork
+ */
-#define SHIFTDATA (AD_DATASZ2 - AD_DATASZ1)
-
/* bail if we can't get a lock */
- if (ad_tmplock(ad, ADEID_RFORK, ADLOCK_WR, 0, 0) < 0)
+ if (ad_tmplock(ad, ADEID_RFORK, ADLOCK_WR, 0, 0, 0) < 0)
goto bail_err;
+
+ /* we reuse fd from the resource fork */
+ fd = ad->ad_hf.adf_fd;
+
+ if (ad->ad_eid[ADEID_RFORK].ade_off) {
+ shiftdata = ADEDOFF_RFORK_V2 -ad->ad_eid[ADEID_RFORK].ade_off;
+ }
+ else {
+ shiftdata = ADEDOFF_RFORK_V2 -ADEDOFF_RFORK_V1; /* 136 */
+ }
+
+ if (fstat(fd, &st)) {
+ goto bail_lock;
+ }
+
+ if (st.st_size > 0x7fffffff -shiftdata) {
+ LOG(log_debug, logtype_default, "ad_v1tov2: file too big.");
+ errno = EIO;
+ goto bail_lock;
+ }
- if ((fd = open(path, O_RDWR)) < 0)
- goto bail_lock;
-
- if (gettimeofday(&tv, NULL) < 0)
- goto bail_lock;
-
- if (fstat(fd, &st) ||
- ftruncate(fd, st.st_size + SHIFTDATA) < 0) {
- goto bail_open;
+ off = ad->ad_eid[ADEID_RFORK].ade_off;
+
+ if (off > st.st_size) {
+ LOG(log_error, logtype_default, "ad_v1tov2: invalid resource fork offset. (off: %u)", off);
+ errno = EIO;
+ goto bail_lock;
+ }
+
+ if (ad->ad_eid[ADEID_RFORK].ade_len > st.st_size - off) {
+ LOG(log_error, logtype_default, "ad_v1tov2: invalid resource fork length. (rfork len: %u)", ad->ad_eid[ADEID_RFORK].ade_len);
+ errno = EIO;
+ goto bail_lock;
}
- /* last place for failure. */
if ((void *) (buf = (char *)
- mmap(NULL, st.st_size + SHIFTDATA,
+ mmap(NULL, st.st_size + shiftdata,
PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)) ==
MAP_FAILED) {
- goto bail_truncate;
+ goto bail_lock;
}
-
- off = ad->ad_eid[ADEID_RFORK].ade_off;
-#ifdef USE_MMAPPED_HEADERS
- /* okay, unmap our old ad header and point it to our local copy */
- munmap(ad->ad_data, off);
- ad->ad_data = buf;
-#endif /* USER_MMAPPED_HEADERS */
+ /* last place for failure. */
- /* move the RFORK. this assumes that the RFORK is at the end */
- memmove(buf + off + SHIFTDATA, buf + off,
- ad->ad_eid[ADEID_RFORK].ade_len);
+ if (sys_ftruncate(fd, st.st_size + shiftdata) < 0) {
+ goto bail_lock;
+ }
+ /* move the RFORK. this assumes that the RFORK is at the end */
+ if (off) {
+ memmove(buf + ADEDOFF_RFORK_V2, buf + off, ad->ad_eid[ADEID_RFORK].ade_len);
+ }
+
+ munmap(buf, st.st_size + shiftdata);
+
/* now, fix up our copy of the header */
memset(ad->ad_filler, 0, sizeof(ad->ad_filler));
ad->ad_eid[ADEID_PRODOSFILEI].ade_off = ADEDOFF_PRODOSFILEI;
ad->ad_eid[ADEID_PRODOSFILEI].ade_len = ADEDLEN_PRODOSFILEI;
+ ad->ad_eid[ADEID_PRIVDEV].ade_off = ADEDOFF_PRIVDEV;
+ ad->ad_eid[ADEID_PRIVDEV].ade_len = ADEDLEN_INIT;
+ ad->ad_eid[ADEID_PRIVINO].ade_off = ADEDOFF_PRIVINO;
+ ad->ad_eid[ADEID_PRIVINO].ade_len = ADEDLEN_INIT;
+ ad->ad_eid[ADEID_PRIVSYN].ade_off = ADEDOFF_PRIVSYN;
+ ad->ad_eid[ADEID_PRIVSYN].ade_len = ADEDLEN_INIT;
+ ad->ad_eid[ADEID_PRIVID].ade_off = ADEDOFF_PRIVID;
+ ad->ad_eid[ADEID_PRIVID].ade_len = ADEDLEN_INIT;
+
/* shift the old entries (NAME, COMMENT, FINDERI, RFORK) */
ad->ad_eid[ADEID_NAME].ade_off = ADEDOFF_NAME_V2;
ad->ad_eid[ADEID_COMMENT].ade_off = ADEDOFF_COMMENT_V2;
ad->ad_eid[ADEID_FINDERI].ade_off = ADEDOFF_FINDERI_V2;
ad->ad_eid[ADEID_RFORK].ade_off = ADEDOFF_RFORK_V2;
- /* switch to v2 */
- ad->ad_version = AD_VERSION2;
+ /* switch to dest version */
+ ad->ad_version = (toV2)?AD_VERSION2:AD_VERSION1;
/* move our data buffer to make space for the new entries. */
- memmove(buf + ADEDOFF_NAME_V2, buf + ADEDOFF_NAME_V1,
+ memmove(ad->ad_data + ADEDOFF_NAME_V2, ad->ad_data + ADEDOFF_NAME_V1,
ADEDOFF_RFORK_V1 - ADEDOFF_NAME_V1);
/* now, fill in the space with appropriate stuff. we're
operating as a v2 file now. */
- ad_setdate(ad, AD_DATE_ACCESS | AD_DATE_UNIX, tv.tv_sec);
+ ad_setdate(ad, AD_DATE_ACCESS | AD_DATE_UNIX, st.st_mtime);
memset(ad_entry(ad, ADEID_DID), 0, ADEDLEN_DID);
memset(ad_entry(ad, ADEID_AFPFILEI), 0, ADEDLEN_AFPFILEI);
ad_setattr(ad, attr);
memset(ad_entry(ad, ADEID_PRODOSFILEI), 0, ADEDLEN_PRODOSFILEI);
/* rebuild the header and cleanup */
- ad_rebuild_header(ad);
- munmap(buf, st.st_size + SHIFTDATA);
- close(fd);
- ad_tmplock(ad, ADEID_RFORK, ADLOCK_CLR, 0, 0);
-
-#ifdef USE_MMAPPED_HEADERS
- /* now remap our header */
- ad->ad_data = mmap(NULL, ADEDOFF_RFORK_V2, PROT_READ | PROT_WRITE,
- (ad_getoflags(ad, ADFLAGS_HF) & O_RDWR) ? MAP_SHARED :
- MAP_PRIVATE, ad->ad_hf.adf_fd, 0);
- if (ad->ad_data == MAP_FAILED)
- goto bail_err;
-#endif /* USE_MMAPPED_HEADERS */
-
- return 0;
+ ad_flush(ad, ADFLAGS_HF );
+ ret = 0;
-bail_truncate:
- ftruncate(fd, st.st_size);
-bail_open:
- close(fd);
bail_lock:
- ad_tmplock(ad, ADEID_RFORK, ADLOCK_CLR, 0, 0);
+ ad_tmplock(ad, ADEID_RFORK, ADLOCK_CLR, 0, 0, 0);
bail_err:
- return -1;
+ return ret;
}
#endif /* AD_VERSION == AD_VERSION2 */
+/* --------------------------- */
+#ifdef ATACC
+mode_t ad_hf_mode (mode_t mode)
+{
+ /* we always need RW mode for file owner */
+#if 0
+ mode |= S_IRUSR;
+#endif
+ mode &= ~(S_IXUSR | S_IXGRP | S_IXOTH);
+ /* fnctl lock need write access */
+ if ((mode & S_IRUSR))
+ mode |= S_IWUSR;
+ if ((mode & S_IRGRP))
+ mode |= S_IWGRP;
+ if ((mode & S_IROTH))
+ mode |= S_IWOTH;
+ /* if write mode set add read mode */
+ if ((mode & S_IWUSR))
+ mode |= S_IRUSR;
+ if ((mode & S_IWGRP))
+ mode |= S_IRGRP;
+ if ((mode & S_IWOTH))
+ mode |= S_IROTH;
+
+ return mode;
+}
-/* read in the entries */
-static __inline__ void parse_entries(struct adouble *ad, char *buf,
+#endif
+
+/* -------------------------------------
+ read in the entries
+*/
+static void parse_entries(struct adouble *ad, char *buf,
u_int16_t nentries)
{
- u_int32_t eid, len, off;
+ u_int32_t eid, len, off;
+ int warning = 0;
/* now, read in the entry bits */
for (; nentries > 0; nentries-- ) {
memcpy(&eid, buf, sizeof( eid ));
- eid = ntohl( eid );
+ eid = DISK_EID(ad, ntohl( eid ));
buf += sizeof( eid );
memcpy(&off, buf, sizeof( off ));
off = ntohl( off );
len = ntohl( len );
buf += sizeof( len );
- if ( 0 < eid && eid < ADEID_MAX ) {
+ if (eid && eid < ADEID_MAX && ( (off < sizeof(ad->ad_data) &&
+ off +len <= sizeof(ad->ad_data)) || eid == ADEID_RFORK)) {
ad->ad_eid[ eid ].ade_off = off;
ad->ad_eid[ eid ].ade_len = len;
- } else {
- LOG(log_debug, logtype_default, "ad_refresh: nentries %hd eid %d\n",
+ } else if (!warning) {
+ warning = 1;
+ LOG(log_debug, logtype_default, "ad_refresh: nentries %hd eid %d",
nentries, eid );
}
}
* NOTE: we're assuming that the resource fork is kept at the end of
* the file. also, mmapping won't work for the hfs fs until it
* understands how to mmap header files. */
-static __inline__ int ad_header_read(struct adouble *ad)
+static int ad_header_read(struct adouble *ad, struct stat *hst)
{
-#ifdef USE_MMAPPED_HEADERS
- char buf[AD_ENTRY_LEN*ADEID_MAX];
-#else /* USE_MMAPPED_HEADERS */
char *buf = ad->ad_data;
-#endif /* USE_MMAPPED_HEADERS */
u_int16_t nentries;
int len;
+ ssize_t header_len;
static int warning = 0;
+ struct stat st;
/* read the header */
- if ( ad->ad_hf.adf_off != 0 ) {
- if ( lseek( ad->ad_hf.adf_fd, 0L, SEEK_SET ) < 0L ) {
- return( -1 );
- }
- ad->ad_hf.adf_off = 0;
+ if ((header_len = adf_pread( &ad->ad_hf, buf, sizeof(ad->ad_data), 0)) < 0) {
+ return -1;
}
-
- if (read( ad->ad_hf.adf_fd, buf, AD_HEADER_LEN) != AD_HEADER_LEN) {
- if ( errno == 0 ) {
- errno = EIO;
- }
- return( -1 );
+ if (header_len < AD_HEADER_LEN) {
+ errno = EIO;
+ return -1;
}
- ad->ad_hf.adf_off = AD_HEADER_LEN;
memcpy(&ad->ad_magic, buf, sizeof( ad->ad_magic ));
- memcpy(&ad->ad_version, buf + ADEDOFF_VERSION,
- sizeof( ad->ad_version ));
+ memcpy(&ad->ad_version, buf + ADEDOFF_VERSION, sizeof( ad->ad_version ));
/* tag broken v1 headers. just assume they're all right.
* we detect two cases: null magic/version
ad->ad_magic = AD_MAGIC;
ad->ad_version = AD_VERSION1;
- } else if ((ad->ad_magic == AD_MAGIC) &&
- (ad->ad_version == AD_VERSION1)) {
+ } else if (ad->ad_magic == AD_MAGIC && ad->ad_version == AD_VERSION1) {
if (!warning) {
LOG(log_debug, logtype_default, "notice: fixing up byte-swapped v1 magic/version.");
warning++;
/* read in all the entry headers. if we have more than the
* maximum, just hope that the rfork is specified early on. */
len = nentries*AD_ENTRY_LEN;
-#ifdef USE_MMAPPED_HEADERS
- if (len > sizeof(buf))
- len = sizeof(buf);
-#else /* USE_MMAPPED_HEADERS */
+
if (len + AD_HEADER_LEN > sizeof(ad->ad_data))
len = sizeof(ad->ad_data) - AD_HEADER_LEN;
+
buf += AD_HEADER_LEN;
-#endif /* USE_MMAPPED_HEADERS */
- if (read(ad->ad_hf.adf_fd, buf, len) != len) {
- if (errno == 0)
- errno = EIO;
+ if (len > header_len - AD_HEADER_LEN) {
+ errno = EIO;
LOG(log_debug, logtype_default, "ad_header_read: can't read entry info.");
return -1;
}
- ad->ad_hf.adf_off += len;
/* figure out all of the entry offsets and lengths. if we aren't
* able to read a resource fork entry, bail. */
+ nentries = len / AD_ENTRY_LEN;
parse_entries(ad, buf, nentries);
if (!ad_getentryoff(ad, ADEID_RFORK)
-#ifndef USE_MMAPPED_HEADERS
|| (ad_getentryoff(ad, ADEID_RFORK) > sizeof(ad->ad_data))
-#endif /* ! USE_MMAPPED_HEADERS */
) {
- LOG(log_debug, logtype_default, "ad_header_read: problem with rfork entry offset.");
- return -1;
+ errno = EIO;
+ LOG(log_debug, logtype_default, "ad_header_read: problem with rfork entry offset.");
+ return -1;
}
- /* read/mmap up to the beginning of the resource fork. */
-#ifdef USE_MMAPPED_HEADERS
- ad->ad_data = mmap(NULL, ad_getentryoff(ad, ADEID_RFORK),
- PROT_READ | PROT_WRITE,
- (ad_getoflags(ad, ADFLAGS_HF) & O_RDWR) ? MAP_SHARED :
- MAP_PRIVATE, ad->ad_hf.adf_fd, 0);
- if (ad->ad_data == MAP_FAILED)
- return -1;
-#else /* USE_MMAPPED_HEADERS */
- buf += len;
- len = ad_getentryoff(ad, ADEID_RFORK) - ad->ad_hf.adf_off;
- if (read(ad->ad_hf.adf_fd, buf, len) != len) {
- if (errno == 0)
- errno = EIO;
+ if (ad_getentryoff(ad, ADEID_RFORK) > header_len) {
+ errno = EIO;
LOG(log_debug, logtype_default, "ad_header_read: can't read in entries.");
return -1;
}
-#endif /* USE_MMAPPED_HEADERS */
+ if (hst == NULL) {
+ hst = &st;
+ if (fstat(ad->ad_hf.adf_fd, &st) < 0) {
+ return 1; /* fail silently */
+ }
+ }
+ ad->ad_rlen = hst->st_size - ad_getentryoff(ad, ADEID_RFORK);
+
/* fix up broken dates */
if (ad->ad_version == AD_VERSION1) {
- struct stat st;
u_int32_t aint;
- if (fstat(ad->ad_hf.adf_fd, &st) < 0) {
- return 1; /* fail silently */
- }
-
/* check to see if the ad date is wrong. just see if we have
* a modification date in the future. */
if (((ad_getdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, &aint)) == 0) &&
- (aint > TIMEWARP_DELTA + st.st_mtime)) {
+ (aint > TIMEWARP_DELTA + hst->st_mtime)) {
ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, aint - AD_DATE_DELTA);
ad_getdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, &aint);
ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, aint - AD_DATE_DELTA);
return 0;
}
-
-/*
+/* ---------------------------------------
* Put the .AppleDouble where it needs to be:
*
* / a/.AppleDouble/b
* a/b
* \ b/.AppleDouble/.Parent
+ *
+ * FIXME: should do something for pathname > MAXPATHLEN
*/
char *
ad_path( path, adflags )
- char *path;
+ const char *path;
int adflags;
{
static char pathbuf[ MAXPATHLEN + 1];
char c, *slash, buf[MAXPATHLEN + 1];
+ size_t l;
- strncpy(buf, path, MAXPATHLEN);
+ l = strlcpy(buf, path, MAXPATHLEN +1);
if ( adflags & ADFLAGS_DIR ) {
- strncpy( pathbuf, buf, MAXPATHLEN );
- if ( *buf != '\0' ) {
- strcat( pathbuf, "/" );
+ strcpy( pathbuf, buf);
+ if ( *buf != '\0' && l < MAXPATHLEN) {
+ pathbuf[l++] = '/';
+ pathbuf[l] = 0;
}
slash = ".Parent";
} else {
- if (( slash = strrchr( buf, '/' )) != NULL ) {
+ if (NULL != ( slash = strrchr( buf, '/' )) ) {
c = *++slash;
*slash = '\0';
- strncpy( pathbuf, buf, MAXPATHLEN);
+ strcpy( pathbuf, buf);
*slash = c;
} else {
pathbuf[ 0 ] = '\0';
slash = buf;
}
}
- strncat( pathbuf, ".AppleDouble/", MAXPATHLEN - strlen(pathbuf));
- strncat( pathbuf, slash, MAXPATHLEN - strlen(pathbuf));
+ strlcat( pathbuf, ".AppleDouble/", MAXPATHLEN +1);
+ strlcat( pathbuf, slash, MAXPATHLEN +1);
return( pathbuf );
}
+/* ---------------------------------------
+ * Put the resource fork where it needs to be:
+ * ._name
+ */
+char *
+ad_path_osx( const char *path, int adflags _U_)
+{
+ static char pathbuf[ MAXPATHLEN + 1];
+ char c, *slash, buf[MAXPATHLEN + 1];
+
+ if (!strcmp(path,".")) {
+ /* fixme */
+ getcwd(buf, MAXPATHLEN);
+ }
+ else {
+ strlcpy(buf, path, MAXPATHLEN +1);
+ }
+ if (NULL != ( slash = strrchr( buf, '/' )) ) {
+ c = *++slash;
+ *slash = '\0';
+ strlcpy( pathbuf, buf, MAXPATHLEN +1);
+ *slash = c;
+ } else {
+ pathbuf[ 0 ] = '\0';
+ slash = buf;
+ }
+ strlcat( pathbuf, "._", MAXPATHLEN +1);
+ strlcat( pathbuf, slash, MAXPATHLEN +1);
+ return pathbuf;
+}
+
/*
* Support inherited protection modes for AppleDouble files. The supplied
* mode is ANDed with the parent directory's mask value in lieu of "umask",
* and that value is returned.
*/
-#define DEFMASK 7700 /* be conservative */
+#define DEFMASK 07700 /* be conservative */
-int
-ad_mode( path, mode )
- char *path;
- int mode;
+char
+*ad_dir(path)
+ const char *path;
{
static char modebuf[ MAXPATHLEN + 1];
- struct stat stbuf;
char *slash;
+ size_t len;
- if ( mode == 0 ) {
- return( mode ); /* save on syscalls */
- }
-
- if ( strlen( path ) >= MAXPATHLEN ) {
- return( mode & DEFMASK ); /* can't do it */
+ if ( (len = strlen( path )) >= MAXPATHLEN ) {
+ errno = ENAMETOOLONG;
+ return NULL; /* can't do it */
}
/*
* For a path which is just a filename, use "." instead.
*/
strcpy( modebuf, path );
- if (( slash = strrchr( modebuf, '/' )) != NULL ) {
+ slash = strrchr( modebuf, '/' );
+ /* is last char a '/' */
+ if (slash && slash[1] == 0) {
+ while (modebuf < slash && slash[-1] == '/') {
+ --slash;
+ }
+ if (modebuf < slash) {
+ *slash = '\0'; /* remove pathname component */
+ slash = strrchr( modebuf, '/' );
+ }
+ }
+ if (slash) {
*slash = '\0'; /* remove pathname component */
} else {
modebuf[0] = '.'; /* use current directory */
modebuf[1] = '\0';
}
+ return modebuf;
+}
+
+/* ---------------- */
+static uid_t default_uid = -1;
+
+int ad_setfuid(const uid_t id)
+{
+ default_uid = id;
+ return 0;
+}
+
+/* ---------------- */
+uid_t ad_getfuid(void)
+{
+ return default_uid;
+}
+
+/* ----------------
+ return inode of path parent directory
+*/
+int ad_stat(const char *path, struct stat *stbuf)
+{
+ char *p;
+
+ p = ad_dir(path);
+ if (!p) {
+ return -1;
+ }
+
+ return stat( p, stbuf );
+}
+
+/* ----------------
+ if we are root change path user/ group
+ It can be a native function for BSD cf. FAQ.Q10
+ path: pathname to chown
+ stbuf: parent directory inode
+
+ use fstat and fchown or lchown with linux?
+*/
+#define EMULATE_SUIDDIR
+
+static int ad_chown(const char *path, struct stat *stbuf)
+{
+int ret = 0;
+#ifdef EMULATE_SUIDDIR
+uid_t id;
+
+ if (default_uid != (uid_t)-1) {
+ /* we are root (admin) */
+ id = (default_uid)?default_uid:stbuf->st_uid;
+ ret = chown( path, id, stbuf->st_gid );
+ }
+#endif
+ return ret;
+}
- if ( stat( modebuf, &stbuf ) != 0 ) {
- return( mode & DEFMASK ); /* bail out... can't stat dir? */
+/* ----------------
+ return access right and inode of path parent directory
+*/
+static int ad_mode_st(const char *path, int *mode, struct stat *stbuf)
+{
+ if (*mode == 0) {
+ return -1;
+ }
+ if (ad_stat(path, stbuf) != 0) {
+ *mode &= DEFMASK;
+ return -1;
}
+ *mode &= stbuf->st_mode;
+ return 0;
+}
- return( mode & stbuf.st_mode );
+/* ----------------
+ return access right of path parent directory
+*/
+int
+ad_mode( path, mode )
+ const char *path;
+ int mode;
+{
+ struct stat stbuf;
+ ad_mode_st(path, &mode, &stbuf);
+ return mode;
}
/*
*/
int
ad_mkdir( path, mode )
- char *path;
+ const char *path;
int mode;
{
+int ret;
+int st_invalid;
+struct stat stbuf;
+
#ifdef DEBUG
LOG(log_info, logtype_default, "ad_mkdir: Creating directory with mode %d", mode);
#endif /* DEBUG */
- return mkdir( path, ad_mode( path, mode ) );
+
+ st_invalid = ad_mode_st(path, &mode, &stbuf);
+ ret = mkdir( path, mode );
+ if (ret || st_invalid)
+ return ret;
+ ad_chown(path, &stbuf);
+
+ return ret;
+}
+
+/* ----------------- */
+static int ad_error(struct adouble *ad, int adflags)
+{
+int err = errno;
+ if ((adflags & ADFLAGS_NOHF)) {
+ /* FIXME double check : set header offset ?*/
+ return 0;
+ }
+ if ((adflags & ADFLAGS_DF)) {
+ ad_close( ad, ADFLAGS_DF );
+ err = errno;
+ }
+ return -1 ;
}
+static int new_rfork(const char *path, struct adouble *ad, int adflags);
-/*
+#ifdef HAVE_PREAD
+#define AD_SET(a)
+#else
+#define AD_SET(a) a = 0
+#endif
+
+void ad_init(struct adouble *ad, int flags, int options)
+{
+ memset( ad, 0, sizeof( struct adouble ) );
+ ad->ad_flags = flags;
+ if (flags == AD_VERSION2_OSX) {
+ ad->ad_path = ad_path_osx;
+ }
+ else {
+ ad->ad_path = ad_path;
+ }
+ ad->ad_options = options;
+}
+
+/* -------------------
* It's not possible to open the header file O_RDONLY -- the read
* will fail and return an error. this refcounts things now.
*/
int ad_open( path, adflags, oflags, mode, ad )
- char *path;
+ const char *path;
int adflags, oflags, mode;
struct adouble *ad;
{
- const struct entry *eid;
struct stat st;
char *slash, *ad_p;
int hoflags, admode;
- u_int16_t ashort;
-
+ int st_invalid = -1;
+ int open_df = 0;
+
if (ad->ad_inited != AD_INITED) {
ad_dfileno(ad) = -1;
ad_hfileno(ad) = -1;
adf_lock_init(&ad->ad_df);
adf_lock_init(&ad->ad_hf);
-#ifdef USE_MMAPPED_HEADERS
- ad->ad_data = MAP_FAILED;
-#endif /* USE_MMAPPED_HEADERS */
ad->ad_inited = AD_INITED;
ad->ad_refcount = 1;
}
- if (adflags & ADFLAGS_DF) {
+ if ((adflags & ADFLAGS_DF)) {
if (ad_dfileno(ad) == -1) {
- if (( ad->ad_df.adf_fd =
- open( path, oflags, ad_mode( path, mode ) )) < 0 ) {
- return( -1 );
+ hoflags = (oflags & ~(O_RDONLY | O_WRONLY)) | O_RDWR;
+ admode = mode;
+ if ((oflags & O_CREAT)) {
+ st_invalid = ad_mode_st(path, &admode, &st);
+ if ((ad->ad_options & ADVOL_UNIXPRIV)) {
+ admode = mode;
+ }
+ }
+ ad->ad_df.adf_fd =open( path, hoflags, admode );
+ if (ad->ad_df.adf_fd < 0 ) {
+ if ((errno == EACCES || errno == EROFS) && !(oflags & O_RDWR)) {
+ hoflags = oflags;
+ ad->ad_df.adf_fd = open( path, hoflags, admode );
+ }
+ }
+ if ( ad->ad_df.adf_fd < 0)
+ return -1;
+
+ AD_SET(ad->ad_df.adf_off);
+ ad->ad_df.adf_flags = hoflags;
+ if (!st_invalid) {
+ /* just created, set owner if admin (root) */
+ ad_chown(path, &st);
}
- ad->ad_df.adf_off = 0;
- ad->ad_df.adf_flags = oflags;
}
+ else {
+ /* the file is already open... but */
+ if ((oflags & ( O_RDWR | O_WRONLY)) && /* we want write access */
+ !(ad->ad_df.adf_flags & ( O_RDWR | O_WRONLY))) /* and it was denied the first time */
+ {
+ errno = EACCES;
+ return -1;
+ }
+ /* FIXME
+ * for now ad_open is never called with O_TRUNC or O_EXCL if the file is
+ * already open. Should we check for it? ie
+ * O_EXCL --> error
+ * O_TRUNC --> truncate the fork.
+ * idem for ressource fork.
+ */
+ }
+ open_df = ADFLAGS_DF;
ad->ad_df.adf_refcount++;
}
- if (adflags & ADFLAGS_HF) {
- if (ad_hfileno(ad) == -1) {
- ad_p = ad_path( path, adflags );
- admode = ad_mode( ad_p, mode ); /* FIXME? */
-
- hoflags = oflags & ~O_CREAT;
- if (( ad->ad_hf.adf_fd = open( ad_p, hoflags, admode )) < 0 ) {
- if ( errno == ENOENT && hoflags != oflags ) {
- /*
- * We're expecting to create a new adouble header file,
- * here.
- */
- errno = 0;
- if (( ad->ad_hf.adf_fd = open( ad_p, oflags,
- admode )) < 0 ) {
+ if (!(adflags & ADFLAGS_HF))
+ return 0;
+
+ if (ad_hfileno(ad) != -1) { /* the file is already open */
+ if ((oflags & ( O_RDWR | O_WRONLY)) &&
+ !(ad->ad_hf.adf_flags & ( O_RDWR | O_WRONLY))) {
+ if (open_df) {
+ /* don't call with ADFLAGS_HF because we didn't open ressource fork */
+ ad_close( ad, open_df );
+ }
+ errno = EACCES;
+ return -1;
+ }
+ ad_refresh(ad);
+ ad->ad_hf.adf_refcount++;
+ return 0;
+ }
+
+ ad_p = ad->ad_path( path, adflags );
+
+ hoflags = oflags & ~O_CREAT;
+ if (!(adflags & ADFLAGS_RDONLY)) {
+ hoflags = (hoflags & ~(O_RDONLY | O_WRONLY)) | O_RDWR;
+ }
+ ad->ad_hf.adf_fd = open( ad_p, hoflags, 0 );
+ if (ad->ad_hf.adf_fd < 0 ) {
+ if ((errno == EACCES || errno == EROFS) && !(oflags & O_RDWR)) {
+ hoflags = oflags & ~O_CREAT;
+ ad->ad_hf.adf_fd = open( ad_p, hoflags, 0 );
+ }
+ }
+
+ if ( ad->ad_hf.adf_fd < 0 ) {
+ if (errno == ENOENT && (oflags & O_CREAT) ) {
+ /*
+ * We're expecting to create a new adouble header file,
+ * here.
+ * if ((oflags & O_CREAT) ==> (oflags & O_RDWR)
+ */
+ admode = mode;
+ errno = 0;
+ st_invalid = ad_mode_st(ad_p, &admode, &st);
+ if ((ad->ad_options & ADVOL_UNIXPRIV)) {
+ admode = mode;
+ }
+ admode = ad_hf_mode(admode);
+ if ( errno == ENOENT && !(adflags & ADFLAGS_NOADOUBLE) && ad->ad_flags != AD_VERSION2_OSX) {
/*
* Probably .AppleDouble doesn't exist, try to
* mkdir it.
*/
- if ((errno == ENOENT) &&
- ((adflags & ADFLAGS_NOADOUBLE) == 0)) {
- if (( slash = strrchr( ad_p, '/' )) == NULL ) {
- ad_close( ad, adflags );
- return( -1 );
- }
- *slash = '\0';
- errno = 0;
- if ( ad_mkdir( ad_p, 0777 ) < 0 ) {
- ad_close( ad, adflags );
- return( -1 );
- }
- *slash = '/';
- if (( ad->ad_hf.adf_fd =
- open( ad_p, oflags, ad_mode( ad_p, mode) )) < 0 ) {
- ad_close( ad, adflags );
- return( -1 );
- }
- } else {
- ad_close( ad, adflags );
- return( -1 );
+ if (NULL == ( slash = strrchr( ad_p, '/' )) ) {
+ return ad_error(ad, adflags);
}
- }
- ad->ad_hf.adf_flags = oflags;
- } else {
- ad_close( ad, adflags );
- return( -1 );
+ *slash = '\0';
+ errno = 0;
+ if ( ad_mkdir( ad_p, 0777 ) < 0 ) {
+ return ad_error(ad, adflags);
+ }
+ *slash = '/';
+ admode = mode;
+ st_invalid = ad_mode_st(ad_p, &admode, &st);
+ if ((ad->ad_options & ADVOL_UNIXPRIV)) {
+ admode = mode;
+ }
+ admode = ad_hf_mode(admode);
}
- } else if ((fstat(ad->ad_hf.adf_fd, &st) == 0) &&
- (st.st_size == 0)) {
- /* for 0 length files, treat them as new. */
- ad->ad_hf.adf_flags = oflags;
- } else {
- ad->ad_hf.adf_flags = hoflags;
- }
- ad->ad_hf.adf_off = 0;
-
- /*
- * This is a new adouble header file. Initialize the structure,
- * instead of reading it.
- */
- memset(ad->ad_eid, 0, sizeof( ad->ad_eid ));
- if ( ad->ad_hf.adf_flags & ( O_TRUNC | O_CREAT )) {
- struct timeval tv;
-
- ad->ad_magic = AD_MAGIC;
- ad->ad_version = AD_VERSION;
- memset(ad->ad_filler, 0, sizeof( ad->ad_filler ));
-
-#ifdef USE_MMAPPED_HEADERS
- /* truncate the header file and mmap it. */
- ftruncate(ad->ad_hf.adf_fd, AD_DATASZ);
- ad->ad_data = mmap(NULL, AD_DATASZ, PROT_READ | PROT_WRITE,
- MAP_SHARED, ad->ad_hf.adf_fd, 0);
- if (ad->ad_data == MAP_FAILED) {
- ad_close(ad, adflags);
- return -1;
- }
-#else /* USE_MMAPPED_HEADERS */
- memset(ad->ad_data, 0, sizeof(ad->ad_data));
-#endif /* USE_MMAPPED_HEADERS */
-
- eid = entry_order;
- while (eid->id) {
- ad->ad_eid[eid->id].ade_off = eid->offset;
- ad->ad_eid[eid->id].ade_len = eid->len;
- eid++;
+ /* retry with O_CREAT */
+ ad->ad_hf.adf_fd = open( ad_p, oflags,admode );
+ if ( ad->ad_hf.adf_fd < 0 ) {
+ return ad_error(ad, adflags);
}
-
- /* put something sane in the directory finderinfo */
- if (adflags & ADFLAGS_DIR) {
- /* set default view */
- ashort = htons(FINDERINFO_CLOSEDVIEW);
- memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRVIEWOFF,
- &ashort, sizeof(ashort));
- } else {
- /* set default creator/type fields */
- memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRTYPEOFF,
- "TEXT", 4);
- memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRCREATOFF,
- "UNIX", 4);
+ ad->ad_hf.adf_flags = oflags;
+ /* just created, set owner if admin owner (root) */
+ if (!st_invalid) {
+ ad_chown(ad_p, &st);
}
+ }
+ else {
+ return ad_error(ad, adflags);
+ }
+ } else if (fstat(ad->ad_hf.adf_fd, &st) == 0 && st.st_size == 0) {
+ /* for 0 length files, treat them as new. */
+ ad->ad_hf.adf_flags = hoflags| O_TRUNC;
+ } else {
+ ad->ad_hf.adf_flags = hoflags;
+ }
+ AD_SET(ad->ad_hf.adf_off);
+
+ memset(ad->ad_eid, 0, sizeof( ad->ad_eid ));
+ ad->ad_hf.adf_refcount++;
+ if ((ad->ad_hf.adf_flags & ( O_TRUNC | O_CREAT ))) {
+ /*
+ * This is a new adouble header file. Initialize the structure,
+ * instead of reading it.
+ */
+ if (new_rfork(path, ad, adflags) < 0) {
+ int err = errno;
+ /* the file is already deleted, perm, whatever, so return an error*/
+ ad_close(ad, adflags);
+ errno = err;
+ return -1;
+ }
+ } else {
+ /* Read the adouble header in and parse it.*/
+ if ((ad_header_read( ad , &st) < 0)
+#if AD_VERSION == AD_VERSION2
+ || (ad_convert(ad, ad_p) < 0) || (ad_update(ad, ad_p) < 0)
+#endif /* AD_VERSION == AD_VERSION2 */
+ ) {
+ int err = errno;
+
+ ad_close( ad, adflags );
+ errno = err;
+ return -1;
+ }
+ }
+ return 0 ;
+}
- /* make things invisible */
- if ((*path == '.') && strcmp(path, ".") && strcmp(path, "..")) {
- ashort = htons(ATTRBIT_INVISIBLE);
- ad_setattr(ad, ashort);
- ashort = htons(FINDERINFO_INVISIBLE);
- memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRFLAGOFF,
- &ashort, sizeof(ashort));
- }
+/* -----------------------------------
+ * return only metadata but try very hard
+*/
+int ad_metadata(const char *name, int flags, struct adouble *adp)
+{
+ uid_t uid;
+ int ret, err;
+
+ if ((ret = ad_open(name, ADFLAGS_HF | (flags), O_RDONLY, 0, adp)) < 0 && errno == EACCES) {
+ uid = geteuid();
+ if (seteuid(0)) {
+ LOG(log_error, logtype_default, "ad_metadata(%s): seteuid failed %s", name, strerror(errno));
+ errno = EACCES;
+ return -1;
+ }
+ /* we are root open read only */
+ ret = ad_open(name, ADFLAGS_HF|ADFLAGS_RDONLY|(flags), O_RDONLY, 0, adp);
+ err = errno;
+ if ( seteuid(uid) < 0) {
+ LOG(log_error, logtype_default, "ad_metadata: can't seteuid back");
+ exit(EXITERR_SYS);
+ }
+ errno = err;
+ }
+ return ret;
+}
- if (gettimeofday(&tv, NULL) < 0) {
- ad_close(ad, adflags);
- return -1;
- }
-
- /* put something sane in the date fields */
- ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, tv.tv_sec);
- ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, tv.tv_sec);
- ad_setdate(ad, AD_DATE_ACCESS | AD_DATE_UNIX, tv.tv_sec);
- ad_setdate(ad, AD_DATE_BACKUP, AD_DATE_START);
+/* ----------------------------------- */
+static int new_rfork(const char *path, struct adouble *ad, int adflags)
+{
+ const struct entry *eid;
+ u_int16_t ashort;
+ struct stat st;
+
+ ad->ad_magic = AD_MAGIC;
+ ad->ad_version = ad->ad_flags & 0x0f0000;
+ if (!ad->ad_version) {
+ ad->ad_version = AD_VERSION;
+ }
+
+ memset(ad->ad_filler, 0, sizeof( ad->ad_filler ));
+ memset(ad->ad_data, 0, sizeof(ad->ad_data));
- } else {
- /*
- * Read the adouble header in and parse it.
- */
- if ((ad_header_read( ad ) < 0)
#if AD_VERSION == AD_VERSION2
- || (ad_v1tov2(ad, ad_p) < 0)
-#endif /* AD_VERSION == AD_VERSION2 */
- ) {
- ad_close( ad, adflags );
- return( -1 );
- }
- }
- }
- ad->ad_hf.adf_refcount++;
+ if (ad->ad_flags == AD_VERSION2)
+ eid = entry_order2;
+ else if (ad->ad_flags == AD_VERSION2_OSX)
+ eid = entry_order_osx;
+ else
+#endif
+ eid = entry_order1;
+
+ while (eid->id) {
+ ad->ad_eid[eid->id].ade_off = eid->offset;
+ ad->ad_eid[eid->id].ade_len = eid->len;
+ eid++;
+ }
+
+ /* put something sane in the directory finderinfo */
+ if ((adflags & ADFLAGS_DIR)) {
+ /* set default view */
+ ashort = htons(FINDERINFO_CLOSEDVIEW);
+ memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRVIEWOFF,
+ &ashort, sizeof(ashort));
+ } else {
+ /* set default creator/type fields */
+ memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRTYPEOFF,"\0\0\0\0", 4);
+ memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRCREATOFF,"\0\0\0\0", 4);
+ }
+
+ /* make things invisible */
+ if ((ad->ad_options & ADVOL_INVDOTS) && !(adflags & ADFLAGS_CREATE) &&
+ (*path == '.') && strcmp(path, ".") && strcmp(path, ".."))
+ {
+ ashort = htons(ATTRBIT_INVISIBLE);
+ ad_setattr(ad, ashort);
+ ashort = htons(FINDERINFO_INVISIBLE);
+ memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRFLAGOFF, &ashort, sizeof(ashort));
}
-
- return( 0 );
+
+ if (stat(path, &st) < 0) {
+ return -1;
+ }
+
+ /* put something sane in the date fields */
+ ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, st.st_mtime);
+ ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, st.st_mtime);
+ ad_setdate(ad, AD_DATE_ACCESS | AD_DATE_UNIX, st.st_mtime);
+ ad_setdate(ad, AD_DATE_BACKUP, AD_DATE_START);
+ return 0;
}
/* to do this with mmap, we need the hfs fs to understand how to mmap
header files. */
int ad_refresh(struct adouble *ad)
{
-#ifdef USE_MMAPPED_HEADERS
- off_t off;
-#endif /* USE_MMAPPED_HEADERS */
-
- if (ad->ad_hf.adf_fd < -1)
- return -1;
-#ifdef USE_MMAPPED_HEADERS
- if (ad->ad_data == MAP_FAILED)
- return -1;
-
- /* re-read the header */
- off = ad_getentryoff(ad, ADEID_RFORK);
- memcpy(&nentries, ad->ad_data + ADEDOFF_NENTRIES, sizeof(nentries));
- nentries = ntohs(nentries);
- parse_entries(ad, ad->ad_data + AD_HEADER_LEN, nentries);
-
- /* check to see if something screwy happened */
- if (!ad_getentryoff(ad, ADEID_RFORK))
+ if (ad->ad_hf.adf_fd < 0)
return -1;
- /* if there's a length discrepancy, remap the header. this shouldn't
- * really ever happen. */
- if (off != ad_getentryoff(ad, ADEID_RFORK)) {
- char *buf = ad->ad_data;
- buf = ad->ad_data;
- ad->ad_data = mmap(NULL, ad_getentryoff(ad, ADEID_RFORK),
- PROT_READ | PROT_WRITE,
- (ad_getoflags(ad, ADFLAGS_HF) & O_RDWR) ?
- MAP_SHARED : MAP_PRIVATE, ad->ad_hf.adf_fd, 0);
- if (ad->ad_data == MAP_FAILED) {
- ad->ad_data = buf;
- return -1;
- }
- munmap(buf, off);
- }
- return 0;
-
-#else /* USE_MMAPPED_HEADERS */
- return ad_header_read(ad);
-#endif /* USE_MMAPPED_HEADERS */
+ return ad_header_read(ad, NULL);
}
projects / netatalk.git / blobdiff