/*
- * $Id: ad_open.c,v 1.74 2010-04-13 08:05:06 franklahm Exp $
- *
* Copyright (c) 1999 Adrian Sun (asun@u.washington.edu)
* Copyright (c) 1990,1991 Regents of The University of Michigan.
+ * Copyright (c) 2010 Frank Lahm
+ *
* All Rights Reserved.
*
* Permission to use, copy, modify, and distribute this software and
/*!
* @file
* Part of Netatalk's AppleDouble implementatation
- * @note We don't use inlines because a good compiler should be
- * able to optimize all the static funcs below.
* @sa include/atalk/adouble.h
*/
#endif /* HAVE_CONFIG_H */
#include <errno.h>
-
-#include <atalk/adouble.h>
#include <sys/param.h>
-#include <atalk/logger.h>
-
-#include <atalk/util.h>
-#include <string.h>
-
-#include "ad_private.h"
#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <arpa/inet.h>
-#ifndef MAX
-#define MAX(a, b) ((a) < (b) ? (b) : (a))
-#endif /* ! MAX */
+#include <atalk/logger.h>
+#include <atalk/adouble.h>
+#include <atalk/util.h>
+#include <atalk/ea.h>
+#include <atalk/bstrlib.h>
+#include <atalk/bstradd.h>
+#include <atalk/compat.h>
+#include <atalk/errchk.h>
+#include <atalk/volume.h>
-/*
- * AppleDouble entry default offsets.
- * The layout looks like this:
- *
- * this is the v1 layout:
- * 255 200 16 32 N
- * | NAME | COMMENT | FILEI | FINDERI | RFORK |
- *
- * we need to change it to look like this:
- *
- * v2 layout:
- * field length (in bytes)
- * NAME 255
- * COMMENT 200
- * FILEDATESI 16 replaces FILEI
- * FINDERI 32
- * DID 4 new
- * AFPFILEI 4 new
- * SHORTNAME 12 8.3 new
- * RFORK N
- *
- * so, all we need to do is replace FILEI with FILEDATESI, move RFORK,
- * and add in the new fields.
- *
- * NOTE: the HFS module will need similar modifications to interact with
- * afpd correctly.
- */
+#include "ad_lock.h"
#define ADEDOFF_MAGIC (0)
#define ADEDOFF_VERSION (ADEDOFF_MAGIC + ADEDLEN_MAGIC)
/* initial lengths of some of the fields */
#define ADEDLEN_INIT 0
-/* make sure we don't redefine ADEDOFF_FILEI */
-#ifdef ADEDOFF_FILEI
-#undef ADEDOFF_FILEI
-#endif /* ADEDOFF_FILEI */
-
-#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)
-#define ADEDOFF_FINDERI_V1 (ADEDOFF_FILEI + ADEDLEN_FILEI)
-#define ADEDOFF_RFORK_V1 (ADEDOFF_FINDERI_V1 + ADEDLEN_FINDERI)
-
/* 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. */
+
+/* ad:v2 */
#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_FINDERI_V2 (ADEDOFF_FILEDATESI + ADEDLEN_FILEDATESI)
-#define ADEDOFF_DID (ADEDOFF_FINDERI_V2 + ADEDLEN_FINDERI)
+#define ADEDOFF_DID (ADEDOFF_FINDERI_V2 + ADEDLEN_FINDERI)
#define ADEDOFF_AFPFILEI (ADEDOFF_DID + ADEDLEN_DID)
#define ADEDOFF_SHORTNAME (ADEDOFF_AFPFILEI + ADEDLEN_AFPFILEI)
#define ADEDOFF_PRODOSFILEI (ADEDOFF_SHORTNAME + ADEDLEN_SHORTNAME)
#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. */
+/* ad:ea */
+#define ADEDOFF_FINDERI_EA (AD_HEADER_LEN + ADEID_NUM_EA * AD_ENTRY_LEN)
+#define ADEDOFF_COMMENT_EA (ADEDOFF_FINDERI_EA + ADEDLEN_FINDERI)
+#define ADEDOFF_FILEDATESI_EA (ADEDOFF_COMMENT_EA + ADEDLEN_COMMENT)
+#define ADEDOFF_AFPFILEI_EA (ADEDOFF_FILEDATESI_EA + ADEDLEN_FILEDATESI)
+#define ADEDOFF_PRIVID_EA (ADEDOFF_AFPFILEI_EA + ADEDLEN_AFPFILEI)
/* this is to prevent changing timezones from causing problems with
- localtime volumes. the screw-up is 30 years. we use a delta of 5
- years. */
+ localtime volumes. the screw-up is 30 years. we use a delta of 5 years */
#define TIMEWARP_DELTA 157680000
-
struct entry {
- u_int32_t id, offset, len;
+ uint32_t id, offset, len;
};
-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}
-};
+/* --------------------------- */
+static uid_t default_uid = -1;
-#if AD_VERSION == AD_VERSION1
-#define DISK_EID(ad, a) (a)
+/* Forward declarations */
+static int ad_mkrf(const char *path);
+static int ad_header_read(const char *path, struct adouble *ad, struct stat *hst);
+static int ad_header_upgrade(struct adouble *ad, const char *name);
-#else /* AD_VERSION == AD_VERSION2 */
+static int ad_mkrf_ea(const char *path);
+static int ad_header_read_ea(const char *path, struct adouble *ad, struct stat *hst);
+static int ad_header_upgrade_ea(struct adouble *ad, const char *name);
+static int ad_reso_size(const char *path, int adflags, struct adouble *ad);
+static int ad_mkrf_osx(const char *path);
-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;
-}
+static struct adouble_fops ad_adouble = {
+ &ad_path,
+ &ad_mkrf,
+ &ad_rebuild_adouble_header,
+ &ad_header_read,
+ &ad_header_upgrade,
+};
+
+static struct adouble_fops ad_adouble_ea = {
+#ifdef HAVE_EAFD
+ &ad_path_ea,
+ &ad_mkrf_ea,
+#else
+ &ad_path_osx,
+ &ad_mkrf_osx,
+#endif
+ &ad_rebuild_adouble_header,
+ &ad_header_read_ea,
+ &ad_header_upgrade_ea,
+};
-#define DISK_EID(ad, a) get_eid(ad, a)
+static struct adouble_fops ad_osx = {
+ &ad_path_osx,
+ &ad_mkrf_osx,
+ &ad_rebuild_adouble_header,
+ &ad_header_read,
+ &ad_header_upgrade,
+};
-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_FINDERI, ADEDOFF_FINDERI_V2, ADEDLEN_FINDERI},
- {ADEID_DID, ADEDOFF_DID, ADEDLEN_DID},
- {ADEID_AFPFILEI, ADEDOFF_AFPFILEI, ADEDLEN_AFPFILEI},
- {ADEID_SHORTNAME, ADEDOFF_SHORTNAME, ADEDLEN_INIT},
+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_FINDERI, ADEDOFF_FINDERI_V2, ADEDLEN_FINDERI},
+ {ADEID_DID, ADEDOFF_DID, ADEDLEN_DID},
+ {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},
+ {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}
+};
+/* Using Extended Attributes */
+static const struct entry entry_order_ea[ADEID_NUM_EA + 1] = {
+ {ADEID_FINDERI, ADEDOFF_FINDERI_EA, ADEDLEN_FINDERI},
+ {ADEID_COMMENT, ADEDOFF_COMMENT_EA, ADEDLEN_INIT},
+ {ADEID_FILEDATESI, ADEDOFF_FILEDATESI_EA, ADEDLEN_FILEDATESI},
+ {ADEID_AFPFILEI, ADEDOFF_AFPFILEI_EA, ADEDLEN_AFPFILEI},
+ {ADEID_PRIVID, ADEDOFF_PRIVID_EA, ADEDLEN_INIT},
{0, 0, 0}
};
-/* OS X adouble finder info and resource fork only
- */
+/* fallback for EAs */
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}
};
-#define ADEID_NUM_SFM 3
-static const struct entry entry_order_sfm[ADEID_NUM_SFM +1] = {
- {ADEID_FINDERI, 16, ADEDLEN_FINDERI}, /* 9 */
- {ADEID_SFMRESERVE2, 16+32, 6}, /* 21 */
- {ADEID_FILEI, 60, ADEDLEN_FILEI}, /* 7 */
-
- {0, 0, 0}
-};
+#define ADFLAGS2LOGSTRBUFSIZ 128
+const char *adflags2logstr(int adflags)
+{
+ int first = 1;
+ static char buf[ADFLAGS2LOGSTRBUFSIZ];
+
+ buf[0] = 0;
+
+ if (adflags & ADFLAGS_DF) {
+ strlcat(buf, "DF", ADFLAGS2LOGSTRBUFSIZ);
+ first = 0;
+ }
+ if (adflags & ADFLAGS_RF) {
+ if (!first)
+ strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
+ strlcat(buf, "RF", ADFLAGS2LOGSTRBUFSIZ);
+ first = 0;
+ }
+ if (adflags & ADFLAGS_NORF) {
+ if (!first)
+ strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
+ strlcat(buf, "NORF", ADFLAGS2LOGSTRBUFSIZ);
+ first = 0;
+ }
+ if (adflags & ADFLAGS_HF) {
+ if (!first)
+ strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
+ strlcat(buf, "HF", ADFLAGS2LOGSTRBUFSIZ);
+ first = 0;
+ }
+ if (adflags & ADFLAGS_NOHF) {
+ if (!first)
+ strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
+ strlcat(buf, "NOHF", ADFLAGS2LOGSTRBUFSIZ);
+ first = 0;
+ }
+ if (adflags & ADFLAGS_DIR) {
+ if (!first)
+ strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
+ strlcat(buf, "DIR", ADFLAGS2LOGSTRBUFSIZ);
+ first = 0;
+ }
+ if (adflags & ADFLAGS_CHECK_OF) {
+ if (!first)
+ strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
+ strlcat(buf, "OF", ADFLAGS2LOGSTRBUFSIZ);
+ first = 0;
+ }
+ if (adflags & ADFLAGS_SETSHRMD) {
+ if (!first)
+ strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
+ strlcat(buf, "SHRMD", ADFLAGS2LOGSTRBUFSIZ);
+ first = 0;
+ }
+ if (adflags & ADFLAGS_RDWR) {
+ if (!first)
+ strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
+ strlcat(buf, "O_RDWR", ADFLAGS2LOGSTRBUFSIZ);
+ first = 0;
+ }
+ if (adflags & ADFLAGS_RDONLY) {
+ if (!first)
+ strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
+ strlcat(buf, "O_RDONLY", ADFLAGS2LOGSTRBUFSIZ);
+ first = 0;
+ }
+ if (adflags & ADFLAGS_CREATE) {
+ if (!first)
+ strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
+ strlcat(buf, "O_CREAT", ADFLAGS2LOGSTRBUFSIZ);
+ first = 0;
+ }
+ if (adflags & ADFLAGS_EXCL) {
+ if (!first)
+ strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
+ strlcat(buf, "O_EXCL", ADFLAGS2LOGSTRBUFSIZ);
+ first = 0;
+ }
+ if (adflags & ADFLAGS_TRUNC) {
+ if (!first)
+ strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
+ strlcat(buf, "O_TRUNC", ADFLAGS2LOGSTRBUFSIZ);
+ first = 0;
+ }
+
+ return buf;
+}
-#endif /* AD_VERSION == AD_VERSION2 */
+static uint32_t get_eid(uint32_t eid)
+{
+ if (eid <= 15)
+ return eid;
+ 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;
-#if AD_VERSION == AD_VERSION2
+ return 0;
+}
-/* update a version 2 adouble resource fork with our private entries */
-static int ad_update(struct adouble *ad, const char *path)
+/* ----------------------------------- */
+static int new_ad_header(struct adouble *ad, const char *path, struct stat *stp, int adflags)
{
- 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;
-
- LOG(log_maxdebug, logtype_default, "ad_update: checking whether '%s' needs an upgrade.", path);
-
- if (!(ad->ad_md->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_md->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;
- }
+ uint16_t ashort;
+ struct stat st;
- if ((void *) (buf = (char *)
- mmap(NULL, st.st_size + shiftdata,
- PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)) ==
- MAP_FAILED) {
- goto bail_lock;
- }
+ LOG(log_debug, logtype_default, "new_ad_header(\"%s\")", path);
- /* last place for failure. */
- if (sys_ftruncate(fd, st.st_size + shiftdata) < 0) {
- goto bail_lock;
+ if (stp == NULL) {
+ stp = &st;
+ if (lstat(path, &st) != 0)
+ return -1;
}
- /* 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);
+ ad->ad_magic = AD_MAGIC;
+ ad->ad_version = ad->ad_vers & 0x0f0000;
+ if (!ad->ad_version) {
+ ad->ad_version = AD_VERSION;
}
- munmap(buf, st.st_size + shiftdata);
-
- /* now, fix up our copy of the header */
- memset(ad->ad_filler, 0, sizeof(ad->ad_filler));
+ memset(ad->ad_data, 0, sizeof(ad->ad_data));
- /* 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++;
+ if (ad->ad_vers == AD_VERSION2)
+ eid = entry_order2;
+ else if (ad->ad_vers == AD_VERSION_EA)
+ eid = entry_order_ea;
+ else if (ad->ad_vers == AD_VERSION2_OSX)
+ eid = entry_order_osx;
+ else {
+ return -1;
}
- 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];
+ ad->ad_eid[eid->id].ade_len = eid->len;
eid++;
}
- /* rebuild the header and cleanup */
- LOG(log_debug, logtype_default, "updated AD2 header %s", path);
- ad_flush(ad );
- 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;
- 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_md->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. */
- 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.
- * 5) move the resource fork
- */
-
- /* bail if we can't get a lock */
- 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_md->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;
- }
+ /* put something sane in the directory finderinfo */
+ if (ad->ad_vers != AD_VERSION2_OSX) {
+ 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);
+ }
- off = ad->ad_eid[ADEID_RFORK].ade_off;
+ /* make things invisible */
+ if ((ad->ad_options & ADVOL_INVDOTS)
+ && (*path == '.')
+ && !((adflags & ADFLAGS_DIR) && (path[1] == 0))
+ ) {
+ ashort = htons(ATTRBIT_INVISIBLE);
+ ad_setattr(ad, ashort);
+ ashort = htons(FINDERINFO_INVISIBLE);
+ memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRFLAGOFF, &ashort, sizeof(ashort));
+ }
- if (off > st.st_size) {
- LOG(log_error, logtype_default, "ad_v1tov2: invalid resource fork offset. (off: %u)", off);
- errno = EIO;
- goto bail_lock;
+ /* put something sane in the date fields */
+ ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, stp->st_mtime);
+ ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, stp->st_mtime);
+ ad_setdate(ad, AD_DATE_ACCESS | AD_DATE_UNIX, stp->st_mtime);
+ ad_setdate(ad, AD_DATE_BACKUP, AD_DATE_START);
}
-
- 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;
- }
-
- 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));
-
- /* replace FILEI with FILEDATESI */
- ad_getattr(ad, &attr);
- ad->ad_eid[ADEID_FILEDATESI].ade_off = ADEDOFF_FILEDATESI;
- ad->ad_eid[ADEID_FILEDATESI].ade_len = ADEDLEN_FILEDATESI;
- ad->ad_eid[ADEID_FILEI].ade_off = 0;
- ad->ad_eid[ADEID_FILEI].ade_len = 0;
-
- /* add in the new entries */
- ad->ad_eid[ADEID_DID].ade_off = ADEDOFF_DID;
- ad->ad_eid[ADEID_DID].ade_len = ADEDLEN_DID;
- ad->ad_eid[ADEID_AFPFILEI].ade_off = ADEDOFF_AFPFILEI;
- ad->ad_eid[ADEID_AFPFILEI].ade_len = ADEDLEN_AFPFILEI;
- ad->ad_eid[ADEID_SHORTNAME].ade_off = ADEDOFF_SHORTNAME;
- ad->ad_eid[ADEID_SHORTNAME].ade_len = ADEDLEN_INIT;
- 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 dest version */
- ad->ad_version = (toV2)?AD_VERSION2:AD_VERSION1;
-
- /* move our data buffer to make space for the new entries. */
- 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, 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_SHORTNAME), 0, ADEDLEN_SHORTNAME);
- memset(ad_entry(ad, ADEID_PRODOSFILEI), 0, ADEDLEN_PRODOSFILEI);
-
- /* rebuild the header and cleanup */
- ad_flush(ad );
- ret = 0;
-
-bail_lock:
- ad_tmplock(ad, ADEID_RFORK, ADLOCK_CLR, 0, 0, 0);
-bail_err:
- return ret;
+ return 0;
}
-#endif /* AD_VERSION == AD_VERSION2 */
/* -------------------------------------
read in the entries
*/
-static void parse_entries(struct adouble *ad, char *buf,
- u_int16_t nentries)
+static void parse_entries(struct adouble *ad, char *buf, uint16_t nentries)
{
- u_int32_t eid, len, off;
- int warning = 0;
+ uint32_t eid, len, off;
+ int warning = 0;
/* now, read in the entry bits */
for (; nentries > 0; nentries-- ) {
memcpy(&eid, buf, sizeof( eid ));
- eid = DISK_EID(ad, ntohl( eid ));
+ eid = get_eid(ntohl(eid));
buf += sizeof( eid );
memcpy(&off, buf, sizeof( off ));
off = ntohl( off );
len = ntohl( len );
buf += sizeof( len );
- if (eid && eid < ADEID_MAX && off < sizeof(ad->ad_data) &&
- (off +len <= sizeof(ad->ad_data) || eid == ADEID_RFORK)) {
+ 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 if (!warning) {
warning = 1;
- LOG(log_debug, logtype_default, "ad_refresh: nentries %hd eid %d",
- nentries, eid );
+ LOG(log_warning, logtype_default, "parse_entries: bogus eid: %d", eid);
}
}
}
-
/* this reads enough of the header so that we can figure out all of
* the entry lengths and offsets. once that's done, we just read/mmap
* the rest of the header in.
* 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 int ad_header_read(struct adouble *ad, struct stat *hst)
+static int ad_header_read(const char *path _U_, struct adouble *ad, struct stat *hst)
{
char *buf = ad->ad_data;
- u_int16_t nentries;
+ uint16_t nentries;
int len;
ssize_t header_len;
- static int warning = 0;
struct stat st;
/* read the header */
- if ((header_len = adf_pread( ad->ad_md, buf, sizeof(ad->ad_data), 0)) < 0) {
+ if ((header_len = adf_pread( ad->ad_mdp, buf, AD_DATASZ, 0)) < 0) {
return -1;
}
if (header_len < AD_HEADER_LEN) {
memcpy(&ad->ad_magic, buf, sizeof( ad->ad_magic ));
memcpy(&ad->ad_version, buf + ADEDOFF_VERSION, sizeof( ad->ad_version ));
+ ad->ad_magic = ntohl( ad->ad_magic );
+ ad->ad_version = ntohl( ad->ad_version );
- /* tag broken v1 headers. just assume they're all right.
- * we detect two cases: null magic/version
- * byte swapped magic/version
- * XXX: in the future, you'll need the v1compat flag.
- * (ad->ad_flags & ADFLAGS_V1COMPAT) */
- if (!ad->ad_magic && !ad->ad_version) {
- if (!warning) {
- LOG(log_debug, logtype_default, "notice: fixing up null v1 magic/version.");
- warning++;
- }
- 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++;
- }
-
- } else {
- ad->ad_magic = ntohl( ad->ad_magic );
- ad->ad_version = ntohl( ad->ad_version );
- }
-
- if ((ad->ad_magic != AD_MAGIC) || ((ad->ad_version != AD_VERSION1)
-#if AD_VERSION == AD_VERSION2
- && (ad->ad_version != AD_VERSION2)
-#endif /* AD_VERSION == AD_VERSION2 */
- )) {
- LOG(log_debug, logtype_default, "ad_open: can't parse AppleDouble header.");
+ if ((ad->ad_magic != AD_MAGIC) || (ad->ad_version != AD_VERSION2)) {
+ LOG(log_error, logtype_default, "ad_open: can't parse AppleDouble header.");
errno = EIO;
return -1;
}
- memcpy(ad->ad_filler, buf + ADEDOFF_FILLER, sizeof( ad->ad_filler ));
memcpy(&nentries, buf + ADEDOFF_NENTRIES, sizeof( nentries ));
nentries = ntohs( nentries );
buf += AD_HEADER_LEN;
if (len > header_len - AD_HEADER_LEN) {
- LOG(log_debug, logtype_default, "ad_header_read: can't read entry info.");
+ LOG(log_error, logtype_default, "ad_header_read: can't read entry info.");
errno = EIO;
return -1;
}
if (!ad_getentryoff(ad, ADEID_RFORK)
|| (ad_getentryoff(ad, ADEID_RFORK) > sizeof(ad->ad_data))
) {
- LOG(log_debug, logtype_default, "ad_header_read: problem with rfork entry offset.");
+ LOG(log_error, logtype_default, "ad_header_read: problem with rfork entry offset.");
errno = EIO;
return -1;
}
if (ad_getentryoff(ad, ADEID_RFORK) > header_len) {
- LOG(log_debug, logtype_default, "ad_header_read: can't read in entries.");
+ LOG(log_error, logtype_default, "ad_header_read: can't read in entries.");
errno = EIO;
return -1;
}
if (hst == NULL) {
hst = &st;
- if (fstat(ad->ad_md->adf_fd, &st) < 0) {
+ if (fstat(ad->ad_mdp->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) {
- u_int32_t aint;
-
- /* 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 + 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);
- ad_getdate(ad, AD_DATE_BACKUP | AD_DATE_UNIX, &aint);
- ad_setdate(ad, AD_DATE_BACKUP | AD_DATE_UNIX, aint - AD_DATE_DELTA);
- }
- }
+ ad->ad_rlen = hst->st_size - ad_getentryoff(ad, ADEID_RFORK);
return 0;
}
-/* ---------------------------
- SFM structure
-*/
-#if 0
-typedef struct {
- byte afpi_Signature[4]; /* Must be 0x00504641 */
- byte afpi_Version[4]; /* Must be 0x00010000 */
- byte afpi_Reserved1[4];
- byte afpi_BackupTime[4]; /* Backup time for the file/dir */
- byte finderinfo[32]; /* Finder info */
- byte afpi_ProDosInfo[6]; /* ProDos Info */
- byte afpi_Reserved2[6];
-} sfm_info;
-#endif
-
-static int ad_header_sfm_read(struct adouble *ad, struct stat *hst)
+/* Read an ._ file, only uses the resofork, finderinfo is taken from EA */
+static int ad_header_read_osx(const char *path _U_, struct adouble *ad, struct stat *hst)
{
- char *buf = ad->ad_data;
- const struct entry *eid;
+ EC_INIT;
+ struct adouble adosx;
+ char *buf = &adosx.ad_data[0];
+ uint16_t nentries;
+ int len;
ssize_t header_len;
struct stat st;
+ memset(buf, 0, sizeof(adosx.ad_data));
+
/* read the header */
- if ((header_len = adf_pread( ad->ad_md, buf, sizeof(ad->ad_data), 0)) < 0) {
+ EC_NEG1( header_len = adf_pread(ad->ad_rfp, buf, AD_DATASZ_OSX, 0) );
+
+ if (header_len < AD_HEADER_LEN) {
+ errno = EIO;
return -1;
}
- if (header_len != AD_SFM_LEN) {
+
+ memcpy(&adosx.ad_magic, buf, sizeof(adosx.ad_magic));
+ memcpy(&adosx.ad_version, buf + ADEDOFF_VERSION, sizeof(adosx.ad_version));
+ adosx.ad_magic = ntohl(adosx.ad_magic);
+ adosx.ad_version = ntohl(adosx.ad_version);
+
+ if ((adosx.ad_magic != AD_MAGIC) || (adosx.ad_version != AD_VERSION2)) {
+ LOG(log_error, logtype_afpd, "ad_header_read_osx: can't parse AppleDouble header");
errno = EIO;
return -1;
}
- memcpy(&ad->ad_magic, buf, sizeof( ad->ad_magic ));
- memcpy(&ad->ad_version, buf + 4, sizeof( ad->ad_version ));
-
- /* FIXME in the great Microsoft tradition they aren't in network order */
-#if 0
- if (ad->ad_magic == SFM_MAGIC && ad->ad_version == AD_VERSION1) {
- static int warning = 0;
- if (!warning) {
- LOG(log_debug, logtype_default, "notice: fixing up byte-swapped v1 magic/version.");
- warning++;
- }
+ memcpy(&nentries, buf + ADEDOFF_NENTRIES, sizeof( nentries ));
+ nentries = ntohs(nentries);
+ len = nentries * AD_ENTRY_LEN;
- } else {
- ad->ad_magic = ntohl( ad->ad_magic );
- ad->ad_version = ntohl( ad->ad_version );
+ if (len + AD_HEADER_LEN > sizeof(adosx.ad_data))
+ len = sizeof(adosx.ad_data) - AD_HEADER_LEN;
+
+ buf += AD_HEADER_LEN;
+ if (len > header_len - AD_HEADER_LEN) {
+ LOG(log_error, logtype_afpd, "ad_header_read_osx: can't read entry info.");
+ errno = EIO;
+ return -1;
}
-#endif
- if ((ad->ad_magic != SFM_MAGIC) || ((ad->ad_version != AD_VERSION1) )) {
+
+ nentries = len / AD_ENTRY_LEN;
+ parse_entries(&adosx, buf, nentries);
+
+ if (ad_getentryoff(&adosx, ADEID_RFORK) == 0
+ || ad_getentryoff(&adosx, ADEID_RFORK) > sizeof(ad->ad_data)
+ || ad_getentryoff(&adosx, ADEID_RFORK) > header_len
+ ) {
+ LOG(log_error, logtype_afpd, "ad_header_read_osx: problem with rfork entry offset.");
errno = EIO;
- LOG(log_debug, logtype_default, "ad_header_sfm_read: can't parse AppleDouble header.");
return -1;
}
- /* reinit adouble table */
- eid = entry_order_sfm;
- while (eid->id) {
- ad->ad_eid[eid->id].ade_off = eid->offset;
- ad->ad_eid[eid->id].ade_len = eid->len;
- eid++;
+ if (hst == NULL) {
+ hst = &st;
+ EC_NEG1( fstat(ad_reso_fileno(ad), &st) );
}
- /* steal some prodos for attribute */
- {
+ ad_setentryoff(ad, ADEID_RFORK, ad_getentryoff(&adosx, ADEID_RFORK));
+ ad->ad_rlen = hst->st_size - ad_getentryoff(ad, ADEID_RFORK);
+
+EC_CLEANUP:
+ EC_EXIT;
+}
+
+static int ad_header_read_ea(const char *path, struct adouble *ad, struct stat *hst _U_)
+{
+ uint16_t nentries;
+ int len;
+ ssize_t header_len;
+ char *buf = ad->ad_data;
- u_int16_t attribute;
- memcpy(&attribute, buf + 48 +4, sizeof(attribute));
- ad_setattr(ad, attribute );
+ if (ad_meta_fileno(ad) != -1)
+ header_len = sys_fgetxattr(ad_meta_fileno(ad), AD_EA_META, ad->ad_data, AD_DATASZ_EA);
+ else
+ header_len = sys_lgetxattr(path, AD_EA_META, ad->ad_data, AD_DATASZ_EA);
+ if (header_len < 1) {
+ LOG(log_debug, logtype_default, "ad_header_read_ea: %s", strerror(errno));
+ return -1;
}
- if (ad->ad_resource_fork.adf_fd != -1) {
- /* we have a resource fork use it rather than the metadata */
- if (fstat(ad->ad_resource_fork.adf_fd, &st) < 0) {
- /* XXX set to zero ?
- ad->ad_rlen = 0;
- */
- return 1;
- }
- ad->ad_rlen = st.st_size;
- hst = &st;
+ if (header_len < AD_HEADER_LEN) {
+ LOG(log_error, logtype_default, "ad_header_read_ea: bogus AppleDouble header.");
+ errno = EIO;
+ return -1;
}
- else if (hst == NULL) {
- hst = &st;
- if (fstat(ad->ad_md->adf_fd, &st) < 0) {
- return 1; /* fail silently */
- }
+
+ memcpy(&ad->ad_magic, buf, sizeof( ad->ad_magic ));
+ memcpy(&ad->ad_version, buf + ADEDOFF_VERSION, sizeof( ad->ad_version ));
+
+ ad->ad_magic = ntohl( ad->ad_magic );
+ ad->ad_version = ntohl( ad->ad_version );
+
+ if ((ad->ad_magic != AD_MAGIC) || (ad->ad_version != AD_VERSION2)) {
+ LOG(log_error, logtype_default, "ad_header_read_ea: wrong magic or version");
+ errno = EIO;
+ return -1;
}
- /* fix up broken dates */
- if (ad->ad_version == AD_VERSION1) {
- u_int32_t aint;
+ memcpy(&nentries, buf + ADEDOFF_NENTRIES, sizeof( nentries ));
+ nentries = ntohs( nentries );
- /* 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 + 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);
- ad_getdate(ad, AD_DATE_BACKUP | AD_DATE_UNIX, &aint);
- ad_setdate(ad, AD_DATE_BACKUP | AD_DATE_UNIX, aint - AD_DATE_DELTA);
- }
+ /* Protect against bogus nentries */
+ len = nentries * AD_ENTRY_LEN;
+ if (len + AD_HEADER_LEN > sizeof(ad->ad_data))
+ len = sizeof(ad->ad_data) - AD_HEADER_LEN;
+ if (len > header_len - AD_HEADER_LEN) {
+ LOG(log_error, logtype_default, "ad_header_read_ea: can't read entry info.");
+ errno = EIO;
+ return -1;
}
+ nentries = len / AD_ENTRY_LEN;
+
+ /* Now parse entries */
+ parse_entries(ad, buf + AD_HEADER_LEN, nentries);
return 0;
}
-/* ---------------------------------------
- * Put the .AppleDouble where it needs to be:
- *
- * / a/.AppleDouble/b
- * a/b
- * \ b/.AppleDouble/.Parent
+/*!
+ * Takes a path to an AppleDouble file and creates the parrent .AppleDouble directory
*
- * FIXME: should do something for pathname > MAXPATHLEN
+ * Example:
+ * path: "/path/.AppleDouble/file"
+ * => mkdir("/path/.AppleDouble/") (in ad_mkdir())
*/
-char *
-ad_path( const char *path, int adflags)
-{
- static char pathbuf[ MAXPATHLEN + 1];
- const char *slash;
- size_t l ;
-
- if ( adflags & ADFLAGS_DIR ) {
- l = strlcpy( pathbuf, path, sizeof(pathbuf));
-
- if ( l && l < MAXPATHLEN) {
- pathbuf[l++] = '/';
- }
- strlcpy(pathbuf +l, ".AppleDouble/.Parent", sizeof(pathbuf) -l);
- } else {
- if (NULL != ( slash = strrchr( path, '/' )) ) {
- slash++;
- l = slash - path;
- /* XXX we must return NULL here and test in the caller */
- if (l > MAXPATHLEN)
- l = MAXPATHLEN;
- memcpy( pathbuf, path, l);
- } else {
- l = 0;
- slash = path;
- }
- l += strlcpy( pathbuf +l, ".AppleDouble/", sizeof(pathbuf) -l);
- strlcpy( pathbuf + l, slash, sizeof(pathbuf) -l);
- }
-
- return( pathbuf );
-}
-
-/* -------------------- */
-static int ad_mkrf(char *path)
+static int ad_mkrf(const char *path)
{
char *slash;
/*
return 0;
}
-/* ---------------------------------------
- * Put the resource fork where it needs to be:
- * ._name
+static int ad_mkrf_ea(const char *path _U_)
+{
+ AFP_PANIC("ad_mkrf_ea: dont use");
+ return 0;
+}
+
+static int ad_mkrf_osx(const char *path _U_)
+{
+ return 0;
+}
+
+/* ----------------
+ 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 = lchown( path, id, stbuf->st_gid );
+ }
+#endif
+ return ret;
+}
+
+#define DEFMASK 07700 /* be conservative */
+
+/* ----------------
+ return access right and inode of path parent directory
+*/
+static int ad_mode_st(const char *path, mode_t *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;
+}
+
+/* --------------------------- */
+static int ad_header_upgrade(struct adouble *ad _U_, const char *name _U_)
+{
+ return 0;
+}
+
+static int ad_header_upgrade_ea(struct adouble *ad _U_, const char *name _U_)
+{
+ AFP_PANIC("ad_header_upgrade_ea: dont use");
+ return 0;
+}
+
+/*!
+ * Error handling for adouble header(=metadata) file open error
+ *
+ * We're called because opening ADFLAGS_HF caused an error.
+ * 1. In case ad_open is called with ADFLAGS_NOHF the error is suppressed.
+ * 2. If ad_open was called with ADFLAGS_DF we may have opened the datafork and thus
+ * ought to close it before returning with an error condition.
*/
-char *
-ad_path_osx(const char *path, int adflags _U_)
+static int ad_error(struct adouble *ad, int adflags)
+{
+ int err = errno;
+ if (adflags & ADFLAGS_NOHF) { /* 1 */
+ return 0;
+ }
+ if (adflags & ADFLAGS_DF) { /* 2 */
+ ad_close( ad, ADFLAGS_DF );
+ err = errno;
+ }
+ return -1 ;
+}
+
+/* Map ADFLAGS to open() flags */
+static int ad2openflags(int adflags)
+{
+ int oflags = 0;
+
+ if (adflags & ADFLAGS_RDWR)
+ oflags |= O_RDWR;
+ if (adflags & ADFLAGS_RDONLY) {
+ if (adflags & ADFLAGS_SETSHRMD)
+ oflags |= O_RDWR;
+ else
+ oflags |= O_RDONLY;
+ }
+ if (adflags & ADFLAGS_CREATE)
+ oflags |= O_CREAT;
+ if (adflags & ADFLAGS_EXCL)
+ oflags |= O_EXCL;
+ if (adflags & ADFLAGS_TRUNC)
+ oflags |= O_TRUNC;
+
+ return oflags;
+}
+
+static int ad_open_df(const char *path, int adflags, mode_t mode, struct adouble *ad)
+{
+ struct stat st_dir;
+ int oflags;
+ mode_t admode;
+ int st_invalid = -1;
+ ssize_t lsz;
+
+ LOG(log_debug, logtype_default, "ad_open_df(\"%s\", %04o)",
+ fullpathname(path), mode);
+
+ if (ad_data_fileno(ad) != -1) {
+ /* the file is already open, but we want write access: */
+ if ((adflags & ADFLAGS_RDWR)
+ /* and it was denied the first time: */
+ && (ad->ad_data_fork.adf_flags & O_RDONLY)) {
+ errno = EACCES;
+ return -1;
+ }
+ /* it's not new anymore */
+ ad->ad_data_fork.adf_flags &= ~( O_TRUNC | O_CREAT );
+ ad->ad_data_fork.adf_refcount++;
+ return 0;
+ }
+
+ oflags = O_NOFOLLOW | ad2openflags(adflags);
+
+ admode = mode;
+ if ((adflags & ADFLAGS_CREATE)) {
+ st_invalid = ad_mode_st(path, &admode, &st_dir);
+ if ((ad->ad_options & ADVOL_UNIXPRIV))
+ admode = mode;
+ }
+
+ ad->ad_data_fork.adf_fd = open(path, oflags, admode);
+
+ if (ad->ad_data_fork.adf_fd == -1) {
+ switch (errno) {
+ case EACCES:
+ case EPERM:
+ case EROFS:
+ if ((adflags & ADFLAGS_SETSHRMD) && (adflags & ADFLAGS_RDONLY)) {
+ oflags &= ~O_RDWR;
+ oflags |= O_RDONLY;
+ if ((ad->ad_data_fork.adf_fd = open(path, oflags, admode)) == -1)
+ return -1;
+ break;
+ }
+ return -1;
+ case OPEN_NOFOLLOW_ERRNO:
+ ad->ad_data_fork.adf_syml = malloc(MAXPATHLEN+1);
+ if ((lsz = readlink(path, ad->ad_data_fork.adf_syml, MAXPATHLEN)) <= 0) {
+ free(ad->ad_data_fork.adf_syml);
+ return -1;
+ }
+ ad->ad_data_fork.adf_syml[lsz] = 0;
+ ad->ad_data_fork.adf_fd = -2; /* -2 means its a symlink */
+ break;
+ default:
+ return -1;
+ }
+ }
+
+ if (!st_invalid)
+ ad_chown(path, &st_dir); /* just created, set owner if admin (root) */
+
+ ad->ad_data_fork.adf_flags = oflags;
+ adf_lock_init(&ad->ad_data_fork);
+ ad->ad_data_fork.adf_refcount++;
+
+ return 0;
+}
+
+/* TODO: error handling */
+static int ad_open_hf_v2(const char *path, int adflags, mode_t mode, struct adouble *ad)
+{
+ struct stat st_dir;
+ struct stat st_meta;
+ struct stat *pst = NULL;
+ const char *ad_p;
+ int oflags, nocreatflags;
+ mode_t admode;
+ int st_invalid = -1;
+
+ if (ad_meta_fileno(ad) != -1) {
+ /* the file is already open, but we want write access: */
+ if ((adflags & ADFLAGS_RDWR) &&
+ /* and it was already denied: */
+ (ad->ad_mdp->adf_flags & O_RDONLY)) {
+ errno = EACCES;
+ return -1;
+ }
+ ad_refresh(path, ad);
+ /* it's not new anymore */
+ ad->ad_mdp->adf_flags &= ~( O_TRUNC | O_CREAT );
+ ad->ad_mdp->adf_refcount++;
+ return 0;
+ }
+
+ ad_p = ad->ad_ops->ad_path(path, adflags);
+ oflags = O_NOFOLLOW | ad2openflags(adflags);
+ nocreatflags = oflags & ~(O_CREAT | O_EXCL);
+
+ ad->ad_mdp->adf_fd = open(ad_p, nocreatflags);
+
+ if (ad->ad_mdp->adf_fd != -1) {
+ ad->ad_mdp->adf_flags = nocreatflags;
+ } else {
+ switch (errno) {
+ case EACCES:
+ case EPERM:
+ case EROFS:
+ if ((adflags & ADFLAGS_RDONLY) && (adflags & ADFLAGS_SETSHRMD)) {
+ nocreatflags &= ~O_RDWR;
+ nocreatflags |= O_RDONLY;
+ if ((ad->ad_mdp->adf_fd = open(ad_p, nocreatflags)) == -1)
+ return -1;
+ ad->ad_mdp->adf_flags = nocreatflags;
+ break;
+ }
+ return -1;
+ case ENOENT:
+ if (!(oflags & O_CREAT))
+ return ad_error(ad, adflags);
+ /*
+ * We're expecting to create a new adouble header file here
+ */
+ LOG(log_debug, logtype_default, "ad_open(\"%s\"): creating adouble file",
+ fullpathname(path));
+ admode = mode;
+ errno = 0;
+ st_invalid = ad_mode_st(ad_p, &admode, &st_dir);
+ if ((ad->ad_options & ADVOL_UNIXPRIV))
+ admode = mode;
+ admode = ad_hf_mode(admode);
+ if (errno == ENOENT) {
+ if (ad->ad_ops->ad_mkrf( ad_p) < 0) {
+ return ad_error(ad, adflags);
+ }
+ admode = mode;
+ st_invalid = ad_mode_st(ad_p, &admode, &st_dir);
+ if ((ad->ad_options & ADVOL_UNIXPRIV))
+ admode = mode;
+ admode = ad_hf_mode(admode);
+ }
+
+ /* retry with O_CREAT */
+ ad->ad_mdp->adf_fd = open(ad_p, oflags, admode);
+ if ( ad->ad_mdp->adf_fd < 0 )
+ return ad_error(ad, adflags);
+
+ ad->ad_mdp->adf_flags = oflags;
+ /* just created, set owner if admin owner (root) */
+ if (!st_invalid)
+ ad_chown(ad_p, &st_dir);
+ break;
+ default:
+ return -1;
+ }
+ }
+
+ if (!(ad->ad_mdp->adf_flags & O_CREAT)) {
+ /* check for 0 length files, treat them as new. */
+ if (fstat(ad->ad_mdp->adf_fd, &st_meta) == 0) {
+ if (st_meta.st_size == 0)
+ ad->ad_mdp->adf_flags |= O_TRUNC;
+ else
+ /* we have valid data in st_meta stat structure, reused it in ad_header_read */
+ pst = &st_meta;
+ }
+ }
+
+ adf_lock_init(ad->ad_mdp);
+ ad->ad_mdp->adf_refcount = 1;
+
+ if ((ad->ad_mdp->adf_flags & ( O_TRUNC | O_CREAT ))) {
+ /* This is a new adouble header file, create it */
+ if (new_ad_header(ad, path, pst, adflags) < 0) {
+ int err = errno;
+ /* the file is already deleted, perm, whatever, so return an error */
+ ad_close(ad, adflags);
+ errno = err;
+ return -1;
+ }
+ ad_flush(ad);
+ } else {
+ /* Read the adouble header in and parse it.*/
+ if (ad->ad_ops->ad_header_read(path, ad, pst) < 0
+ || ad->ad_ops->ad_header_upgrade(ad, ad_p) < 0) {
+ int err = errno;
+ ad_close(ad, adflags);
+ errno = err;
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static int ad_open_hf_ea(const char *path, int adflags, int mode, struct adouble *ad)
+{
+ EC_INIT;
+ ssize_t rforklen;
+ int oflags;
+ int opened = 0;
+
+ LOG(log_debug, logtype_default,
+ "ad_open_hf_ea(\"%s\", %s): BEGIN [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
+ fullpathname(path), adflags2logstr(adflags),
+ ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
+ ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
+ ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
+
+ oflags = O_NOFOLLOW | (ad2openflags(adflags) & ~(O_CREAT | O_TRUNC));
+
+ if (ad_meta_fileno(ad) == -2)
+ /* symlink */
+ EC_EXIT;
+
+ if (ad_meta_fileno(ad) != -1) {
+ /* the file is already open, but we want write access: */
+ if ((oflags & O_RDWR) &&
+ /* and it was already denied: */
+ (ad->ad_mdp->adf_flags & O_RDONLY)) {
+ LOG(log_error, logtype_default, "ad_open_hf_ea(%s): rw request for ro file: %s",
+ fullpathname(path), strerror(errno));
+ errno = EACCES;
+ EC_FAIL;
+ }
+ /* it's not new anymore */
+ ad->ad_mdp->adf_flags &= ~( O_TRUNC | O_CREAT );
+ } else {
+ if (oflags & O_RDWR) {
+ /* Fo a RDONLY adouble we just use sys_lgetxattr instead if sys_fgetxattr */
+ if (adflags & ADFLAGS_DIR)
+ /* For directories we open the directory RDONYL so we can later fchdir() */
+ oflags = (oflags & ~O_RDWR) | O_RDONLY;
+ LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\"): opening base file for meta adouble EA", path);
+ EC_NEG1_LOG(ad_meta_fileno(ad) = open(path, oflags));
+ opened = 1;
+ ad->ad_mdp->adf_flags = oflags;
+ }
+ }
+
+ /* Read the adouble header in and parse it.*/
+ if (ad->ad_ops->ad_header_read(path, ad, NULL) != 0) {
+ if (!(adflags & ADFLAGS_CREATE)) {
+ LOG(log_error, logtype_default, "ad_open_hf_ea(\"%s\"): can't read metadata EA", path);
+ errno = ENOENT;
+ EC_FAIL;
+ }
+
+ LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\"): creating metadata EA", path);
+
+ /* It doesnt exist, EPERM or another error */
+ if (!(errno == ENOATTR || errno == ENOENT)) {
+ LOG(log_error, logtype_default, "ad_open_hf_ea: unexpected: %s", strerror(errno));
+ EC_FAIL;
+ }
+
+ /* Create one */
+ EC_NEG1_LOG(new_ad_header(ad, path, NULL, adflags));
+ ad->ad_mdp->adf_flags |= O_CREAT; /* mark as just created */
+ ad_flush(ad);
+ LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\"): created metadata EA", path);
+ }
+
+ ad->ad_mdp->adf_refcount++;
+ (void)ad_reso_size(path, adflags, ad);
+
+EC_CLEANUP:
+ if (ret != 0 && opened && ad_meta_fileno(ad) != -1) {
+ close(ad_meta_fileno(ad));
+ ad_meta_fileno(ad) = -1;
+ ad->ad_mdp->adf_refcount = 0;
+ }
+ LOG(log_debug, logtype_default,
+ "ad_open_hf_ea(\"%s\", %s): END: %d [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
+ fullpathname(path), adflags2logstr(adflags), ret,
+ ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
+ ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
+ ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
+
+ EC_EXIT;
+}
+
+static int ad_open_hf(const char *path, int adflags, int mode, struct adouble *ad)
+{
+ int ret = 0;
+
+ memset(ad->ad_eid, 0, sizeof( ad->ad_eid ));
+ ad->ad_rlen = 0;
+
+ switch (ad->ad_vers) {
+ case AD_VERSION2:
+ ret = ad_open_hf_v2(path, adflags, mode, ad);
+ break;
+ case AD_VERSION_EA:
+ ret = ad_open_hf_ea(path, adflags, mode, ad);
+ break;
+ default:
+ ret = -1;
+ break;
+ }
+
+ if (ret != 0)
+ ret = ad_error(ad, adflags);
+
+ return ret;
+}
+
+/*!
+ * Get resofork length for adouble:ea
+ */
+static int ad_reso_size(const char *path, int adflags, struct adouble *ad)
+{
+ EC_INIT;
+ struct stat st;
+
+ LOG(log_debug, logtype_default, "ad_reso_size(\"%s\")", path);
+
+#ifdef HAVE_EAFD
+ ssize_t easz;
+
+ if (ad_reso_fileno(ad) != -1) {
+ EC_NEG1( fstat(ad_reso_fileno(ad), &st) );
+ ad->ad_rlen = st.st_size;
+ } else if (ad_meta_fileno(ad) != -1) {
+ EC_NEG1( easz = sys_fgetxattr(ad_meta_fileno(ad), AD_EA_RESO, NULL, 0) );
+ ad->ad_rlen = easz;
+ } else {
+ EC_FAIL;
+ }
+
+#else
+ const char *rfpath;
+ EC_NULL_LOG( rfpath = ad->ad_ops->ad_path(path, adflags));
+ EC_ZERO( lstat(rfpath, &st));
+ if (st.st_size > ADEDOFF_RFORK_OSX)
+ ad->ad_rlen = st.st_size - ADEDOFF_RFORK_OSX;
+ else
+ ad->ad_rlen = 0;
+#endif
+
+ LOG(log_debug, logtype_default, "ad_reso_size(\"%s\"): size: %zd", path, ad->ad_rlen);
+
+EC_CLEANUP:
+ if (ret != 0)
+ ad->ad_rlen = 0;
+ EC_EXIT;
+}
+
+/*!
+ * Open ressource fork
+ *
+ * Only for adouble:ea, a nullop otherwise because adouble:v2 has the ressource fork as part
+ * of the adouble file which is openend by ADFLAGS_HF.
+ */
+static int ad_open_rf(const char *path, int adflags, int mode, struct adouble *ad)
+{
+ EC_INIT;
+ int oflags;
+ int opened = 0;
+ int closeflags = adflags & (ADFLAGS_DF | ADFLAGS_HF);
+ ssize_t rlen;
+#ifndef HAVE_EAFD
+ const char *rfpath;
+ struct stat st;
+#endif
+
+ if (ad->ad_vers != AD_VERSION_EA)
+ return 0;
+
+ LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): BEGIN", fullpathname(path));
+
+ oflags = O_NOFOLLOW | (ad2openflags(adflags) & ~O_CREAT);
+
+ if (ad_reso_fileno(ad) != -1) {
+ /* the file is already open, but we want write access: */
+ if ((oflags & O_RDWR)
+ /* and it was already denied: */
+ && (ad->ad_rfp->adf_flags & O_RDONLY)) {
+ errno = EACCES;
+ EC_FAIL;
+ }
+ ad->ad_rfp->adf_flags &= ~( O_TRUNC | O_CREAT );
+ ad->ad_rfp->adf_refcount++;
+ EC_NEG1_LOG( ad_reso_size(path, adflags, ad));
+ goto EC_CLEANUP;
+ }
+#ifdef HAVE_EAFD
+ if (ad_meta_fileno(ad) == -1)
+ EC_FAIL;
+ if ((ad_reso_fileno(ad) = sys_getxattrfd(ad_meta_fileno(ad), AD_EA_RESO, oflags)) == -1) {
+ if (!(adflags & ADFLAGS_CREATE)) {
+ errno = ENOENT;
+ EC_FAIL;
+ }
+ oflags |= O_CREAT;
+ EC_NEG1_LOG( ad_reso_fileno(ad) = sys_getxattrfd(ad_meta_fileno(ad),
+ AD_EA_RESO, oflags, 0666) );
+ }
+#else
+ EC_NULL_LOG( rfpath = ad->ad_ops->ad_path(path, adflags) );
+ if ((ad_reso_fileno(ad) = open(rfpath, oflags)) == -1) {
+ if (!(adflags & ADFLAGS_CREATE))
+ EC_FAIL;
+ oflags |= O_CREAT;
+ EC_NEG1_LOG( ad_reso_fileno(ad) = open(rfpath, oflags, mode) );
+ LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): created adouble rfork: \"%s\"",
+ path, rfpath);
+ }
+#endif
+ opened = 1;
+ ad->ad_rfp->adf_refcount = 1;
+ ad->ad_rfp->adf_flags = oflags;
+
+#ifndef HAVE_EAFD
+ EC_ZERO_LOG( fstat(ad_reso_fileno(ad), &st) );
+ if (ad->ad_rfp->adf_flags & O_CREAT) {
+ /* This is a new adouble header file, create it */
+ LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): created adouble rfork, initializing: \"%s\"",
+ path, rfpath);
+ LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): created adouble rfork, flushing: \"%s\"",
+ path, rfpath);
+ ad_flush(ad);
+ } else {
+ /* Read the adouble header */
+ LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): reading adouble rfork: \"%s\"",
+ path, rfpath);
+ EC_NEG1_LOG( ad_header_read_osx(NULL, ad, &st) );
+ }
+#endif
+
+ (void)ad_reso_size(path, adflags, ad);
+
+EC_CLEANUP:
+ if (ret != 0) {
+ if (opened && (ad_reso_fileno(ad) != -1)) {
+ close(ad_reso_fileno(ad));
+ ad_reso_fileno(ad) = -1;
+ ad->ad_rfp->adf_refcount = 0;
+ }
+ if (adflags & ADFLAGS_NORF) {
+ ret = 0;
+ } else {
+ int err = errno;
+ (void)ad_close(ad, closeflags);
+ errno = err;
+ }
+ ad->ad_rlen = 0;
+ }
+
+ LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): END: %d", fullpathname(path), ret);
+
+ EC_EXIT;
+}
+
+/***********************************************************************************
+ * API functions
+ ********************************************************************************* */
+
+const char *ad_path_ea( const char *path, int adflags _U_)
+{
+ return path;
+}
+
+const char *ad_path_osx(const char *path, int adflags _U_)
{
static char pathbuf[ MAXPATHLEN + 1];
char c, *slash, buf[MAXPATHLEN + 1];
strlcat( pathbuf, slash, MAXPATHLEN +1);
return pathbuf;
}
-/* -------------------- */
-static int ad_mkrf_osx(char *path _U_)
-{
- return 0;
-}
-/* ---------------------------------------
+/*
* Put the .AppleDouble where it needs to be:
*
- * / a/.AppleDouble/b/AFP_AfpInfo
+ * / a/.AppleDouble/b
* a/b
- * \ b/.AppleDouble/.Parent/AFP_AfpInfo
+ * \ b/.AppleDouble/.Parent
*
+ * FIXME: should do something for pathname > MAXPATHLEN
*/
-char *
-ad_path_sfm( const char *path, int adflags)
+const char *ad_path( const char *path, int adflags)
{
static char pathbuf[ MAXPATHLEN + 1];
- char c, *slash, buf[MAXPATHLEN + 1];
- size_t l;
+ const char *slash;
+ size_t l ;
- l = strlcpy(buf, path, MAXPATHLEN +1);
if ( adflags & ADFLAGS_DIR ) {
- strcpy( pathbuf, buf);
- if ( *buf != '\0' && l < MAXPATHLEN) {
+ l = strlcpy( pathbuf, path, sizeof(pathbuf));
+
+ if ( l && l < MAXPATHLEN) {
pathbuf[l++] = '/';
- pathbuf[l] = 0;
}
- slash = ".Parent";
+ strlcpy(pathbuf +l, ".AppleDouble/.Parent", sizeof(pathbuf) -l);
} else {
- if (NULL != ( slash = strrchr( buf, '/' )) ) {
- c = *++slash;
- *slash = '\0';
- strcpy( pathbuf, buf);
- *slash = c;
+ if (NULL != ( slash = strrchr( path, '/' )) ) {
+ slash++;
+ l = slash - path;
+ /* XXX we must return NULL here and test in the caller */
+ if (l > MAXPATHLEN)
+ l = MAXPATHLEN;
+ memcpy( pathbuf, path, l);
} else {
- pathbuf[ 0 ] = '\0';
- slash = buf;
+ l = 0;
+ slash = path;
}
+ l += strlcpy( pathbuf +l, ".AppleDouble/", sizeof(pathbuf) -l);
+ strlcpy( pathbuf + l, slash, sizeof(pathbuf) -l);
}
- strlcat( pathbuf, ".AppleDouble/", MAXPATHLEN +1);
- strlcat( pathbuf, slash, MAXPATHLEN +1);
- if ((adflags == ADFLAGS_RF)) {
- strlcat( pathbuf, "/AFP_Resource", MAXPATHLEN +1);
- }
- else {
- strlcat( pathbuf, "/AFP_AfpInfo", MAXPATHLEN +1);
- }
return( pathbuf );
}
-/* -------------------- */
-static int ad_mkrf_sfm(char *path)
-{
- char *slash;
- /*
- * Probably .AppleDouble doesn't exist, try to mkdir it.
- */
- if (NULL == ( slash = strrchr( path, '/' )) ) {
- return -1;
- }
- *slash = 0;
- errno = 0;
- if ( ad_mkdir( path, 0777 ) < 0 ) {
- if ( errno == ENOENT ) {
- char *slash1;
-
- if (NULL == ( slash1 = strrchr( path, '/' )) )
- return -1;
- errno = 0;
- *slash1 = 0;
- if ( ad_mkdir( path, 0777 ) < 0 )
- return -1;
- *slash1 = '/';
- if ( ad_mkdir( path, 0777 ) < 0 )
- return -1;
- }
- else
- return -1;
- }
- *slash = '/';
- return 0;
-}
-
/* -------------------------
* 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 07700 /* be conservative */
-
-char
-*ad_dir(const char *path)
+char *ad_dir(const char *path)
{
static char modebuf[ MAXPATHLEN + 1];
char *slash;
return modebuf;
}
-/* ---------------- */
-static uid_t default_uid = -1;
-
int ad_setfuid(const uid_t id)
{
default_uid = id;
/* ---------------- */
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;
- }
-//FIXME!
- return lstat( 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 = lchown( path, id, stbuf->st_gid );
- }
-#endif
- return ret;
+{
+ return default_uid;
}
/* ----------------
- return access right and inode of path parent directory
+ stat path parent directory
*/
-static int ad_mode_st(const char *path, int *mode, struct stat *stbuf)
+int ad_stat(const char *path, struct stat *stbuf)
{
- if (*mode == 0) {
- return -1;
- }
- if (ad_stat(path, stbuf) != 0) {
- *mode &= DEFMASK;
+ char *p;
+
+ p = ad_dir(path);
+ if (!p)
return -1;
- }
- *mode &= stbuf->st_mode;
- return 0;
+ return lstat( p, stbuf );
}
/* ----------------
return access right of path parent directory
*/
-int
-ad_mode( const char *path, int mode)
+int ad_mode( const char *path, mode_t mode)
{
struct stat stbuf;
ad_mode_st(path, &mode, &stbuf);
/*
* Use mkdir() with mode bits taken from ad_mode().
*/
-int
-ad_mkdir( const char *path, int mode)
+int ad_mkdir( const char *path, mode_t mode)
{
int ret;
int st_invalid;
return ret;
}
-/* ----------------- */
-static int ad_error(struct adouble *ad, int adflags)
+static void ad_init_func(struct adouble *ad)
{
- 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;
+ switch (ad->ad_vers) {
+ case AD_VERSION2:
+ ad->ad_ops = &ad_adouble;
+ ad->ad_rfp = &ad->ad_resource_fork;
+ ad->ad_mdp = &ad->ad_resource_fork;
+ break;
+ case AD_VERSION_EA:
+ ad->ad_ops = &ad_adouble_ea;
+ ad->ad_rfp = &ad->ad_resource_fork;
+ ad->ad_mdp = &ad->ad_data_fork;
+ break;
+ default:
+ AFP_PANIC("ad_init: unknown AD version");
}
- 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
-
-/* --------------------------- */
-static int ad_check_size(struct adouble *ad _U_, struct stat *st)
-{
- if (st->st_size > 0 && st->st_size < AD_DATASZ1)
- return 1;
- return 0;
-}
-/* --------------------------- */
-static int ad_check_size_sfm(struct adouble *ad _U_, struct stat *st)
-{
- if (st->st_size > 0 && st->st_size < AD_SFM_LEN)
- return 1;
- return 0;
-}
-/* --------------------------- */
-static int ad_header_upgrade(struct adouble *ad, char *name)
-{
-#if AD_VERSION == AD_VERSION2
- int ret;
- if ( (ret = ad_convert(ad, name)) < 0 || (ret = ad_update(ad, name) < 0)) {
- return ret;
- }
-#endif
- return 0;
+ ad_data_fileno(ad) = -1;
+ ad_reso_fileno(ad) = -1;
+ ad_meta_fileno(ad) = -1;
+ ad->ad_refcount = 1;
+ return;
}
-/* --------------------------- */
-static int ad_header_upgrade_none(struct adouble *ad _U_, char *name _U_)
+void ad_init_old(struct adouble *ad, int flags, int options)
{
- return 0;
+ memset(ad, 0, sizeof(struct adouble));
+ ad->ad_vers = flags;
+ ad->ad_options = options;
+ ad_init_func(ad);
}
-/* --------------------------- */
-static struct adouble_fops ad_osx = {
- &ad_path_osx,
- &ad_mkrf_osx,
- &ad_rebuild_adouble_header,
- &ad_check_size,
-
- &ad_header_read,
- &ad_header_upgrade,
-};
-
-static struct adouble_fops ad_sfm = {
- &ad_path_sfm,
- &ad_mkrf_sfm,
- &ad_rebuild_sfm_header,
- &ad_check_size_sfm,
-
- &ad_header_sfm_read,
- &ad_header_upgrade_none,
-};
-
-static struct adouble_fops ad_adouble = {
- &ad_path,
- &ad_mkrf,
- &ad_rebuild_adouble_header,
- &ad_check_size,
-
- &ad_header_read,
- &ad_header_upgrade,
-};
-
-
-void ad_init(struct adouble *ad, int flags, int options)
+void ad_init(struct adouble *ad, const struct vol * restrict vol)
{
- ad->ad_inited = 0;
- ad->ad_flags = flags;
- if (flags == AD_VERSION2_OSX) {
- ad->ad_ops = &ad_osx;
- ad->ad_md = &ad->ad_resource_fork;
- }
- else if (flags == AD_VERSION1_SFM) {
- ad->ad_ops = &ad_sfm;
- ad->ad_md = &ad->ad_metadata_fork;
- }
- else {
- ad->ad_ops = &ad_adouble;
- ad->ad_md = &ad->ad_resource_fork;
- }
- ad->ad_options = options;
-
- ad_data_fileno(ad) = -1;
- ad_reso_fileno(ad) = -1;
- ad_meta_fileno(ad) = -1;
- /* following can be read even if there's no
- * meda data.
- */
- memset(ad->ad_eid, 0, sizeof( ad->ad_eid ));
- ad->ad_rlen = 0;
+ memset(ad, 0, sizeof(struct adouble));
+ ad->ad_vers = vol->v_adouble;
+ ad->ad_options = vol->v_ad_options;
+ ad_init_func(ad);
}
/*!
* Open data-, metadata(header)- or ressource fork
*
+ * ad_open(struct adouble *ad, const char *path, int adflags, int flags)
+ * ad_open(struct adouble *ad, const char *path, int adflags, int flags, mode_t mode)
+ *
* You must call ad_init() before ad_open, usually you'll just call it like this: \n
* @code
* struct adoube ad;
* ad_init(&ad, vol->v_adouble, vol->v_ad_options);
* @endcode
*
- * @param path Path to file or directory
+ * Open a files data fork, metadata fork or ressource fork.
*
- * @param adflags ADFLAGS_DF: open data file/fork\n
- * ADFLAGS_HF: open header (metadata) file\n
- * ADFLAGS_RF: open ressource fork *** FIXME: not used ?! *** \n
- * ADFLAGS_CREATE: indicate creation\n
- * ADFLAGS_NOHF: it's not an error if header file couldn't be created\n
- * ADFLAGS_DIR: if path is a directory you MUST or ADFLAGS_DIR to adflags\n
- * ADFLAGS_NOADOUBLE: dont create adouble files if not necessary\n
- * ADFLAGS_RDONLY: open read only\n
- * ADFLAGS_OPENFORKS: check for open forks from other processes\n
- * ADFLAGS_MD: alias for ADFLAGS_HF\n
- * ADFLAGS_V1COMPAT: obsolete
+ * @param ad (rw) pointer to struct adouble
+ * @param path (r) Path to file or directory
+ * @param adflags (r) Flags specifying which fork to open, can be or'd:
+ * ADFLAGS_DF: open data fork
+ * ADFLAGS_RF: open ressource fork
+ * ADFLAGS_HF: open header (metadata) file
+ * ADFLAGS_NOHF: it's not an error if header file couldn't be opened
+ * ADFLAGS_NORF: it's not an error if reso fork couldn't be opened
+ * ADFLAGS_DIR: if path is a directory you MUST or ADFLAGS_DIR to adflags
*
- * @param oflags flags passed through to open syscall: \n
- * O_RDONLY: *** FIXME *** \n
- * O_RDWR: *** FIXME *** \n
- * O_CREAT: create fork\n
- * O_EXCL: fail if exists with O_CREAT
+ * Access mode for the forks:
+ * ADFLAGS_RDONLY: open read only
+ * ADFLAGS_RDWR: open read write
*
- * @param mode passed to open with O_CREAT
+ * Creation flags:
+ * ADFLAGS_CREATE: create if not existing
+ * ADFLAGS_TRUNC: truncate
*
- * @param ad pointer to struct adouble
+ * Special flags:
+ * ADFLAGS_CHECK_OF: check for open forks from us and other afpd's
+ * ADFLAGS_SETSHRMD: this adouble struct will be used to set sharemode locks.
+ * This basically results in the files being opened RW instead of RDONLY.
+ * @param mode (r) mode used with O_CREATE
*
- * @returns 0 on success
+ * The open mode flags (rw vs ro) have to take into account all the following requirements:
+ * - we remember open fds for files because me must avoid a single close releasing fcntl locks for other
+ * fds of the same file
*
- * @note It's not possible to open the header file O_RDONLY -- the read
- * will fail and return an error. this refcounts things now.\n
- * metadata(ressource)-fork only gets created with O_CREAT.
+ * @returns 0 on success, any other value indicates an error
*/
-int ad_open( const char *path, int adflags, int oflags, int mode, struct adouble *ad)
+int ad_open(struct adouble *ad, const char *path, int adflags, ...)
{
- struct stat st_dir;
- struct stat st_meta;
- struct stat *pst = NULL;
- char *ad_p;
- int hoflags, admode;
- int st_invalid = -1;
- int open_df = 0;
-
- if (ad->ad_inited != AD_INITED) {
- ad->ad_inited = AD_INITED;
- ad->ad_refcount = 1;
- ad->ad_open_forks = 0;
- ad->ad_adflags = adflags;
- ad->ad_resource_fork.adf_refcount = 0;
- ad->ad_data_fork.adf_refcount = 0;
- ad->ad_data_fork.adf_syml=0;
- }
- else {
- ad->ad_open_forks = ((ad->ad_data_fork.adf_refcount > 0) ? ATTRBIT_DOPEN : 0);
- /* XXX not true if we have a meta data fork ? */
- if ((ad->ad_resource_fork.adf_refcount > ad->ad_data_fork.adf_refcount))
- ad->ad_open_forks |= ATTRBIT_ROPEN;
- }
+ EC_INIT;
+ va_list args;
+ mode_t mode = 0;
- if ((adflags & ADFLAGS_DF)) {
- if (ad_data_fileno(ad) == -1) {
- hoflags = (oflags & ~(O_RDONLY | O_WRONLY)) | O_RDWR;
- admode = mode;
- if ((oflags & O_CREAT)) {
- st_invalid = ad_mode_st(path, &admode, &st_dir);
- if ((ad->ad_options & ADVOL_UNIXPRIV)) {
- admode = mode;
- }
- }
-
- ad->ad_data_fork.adf_fd =open( path, hoflags | O_NOFOLLOW, admode );
-
- if (ad->ad_data_fork.adf_fd == -1) {
- if ((errno == EACCES || errno == EROFS) && !(oflags & O_RDWR)) {
- hoflags = oflags;
- ad->ad_data_fork.adf_fd = open( path, hoflags | O_NOFOLLOW, admode );
- }
- if (ad->ad_data_fork.adf_fd == -1 && errno == OPEN_NOFOLLOW_ERRNO) {
- int lsz;
-
- ad->ad_data_fork.adf_syml = malloc(MAXPATHLEN+1);
- lsz = readlink(path, ad->ad_data_fork.adf_syml, MAXPATHLEN);
- if (lsz <= 0) {
- free(ad->ad_data_fork.adf_syml);
- return -1;
- }
- ad->ad_data_fork.adf_syml[lsz] = 0;
- ad->ad_data_fork.adf_syml = realloc(ad->ad_data_fork.adf_syml,lsz+1);
- ad->ad_data_fork.adf_fd = -2; /* -2 means its a symlink */
- }
- }
-
- if ( ad->ad_data_fork.adf_fd == -1 )
- return -1;
-
- AD_SET(ad->ad_data_fork.adf_off);
- ad->ad_data_fork.adf_flags = hoflags;
- if (!st_invalid) {
- /* just created, set owner if admin (root) */
- ad_chown(path, &st_dir);
- }
- adf_lock_init(&ad->ad_data_fork);
- }
- else {
- /* the file is already open... but */
- if ((oflags & ( O_RDWR | O_WRONLY)) && /* we want write access */
- !(ad->ad_data_fork.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_data_fork.adf_refcount++;
- }
-
- if (!(adflags & ADFLAGS_HF))
- return 0;
-
- /* ****************************************** */
-
- if (ad_meta_fileno(ad) != -1) { /* the file is already open */
- if ((oflags & ( O_RDWR | O_WRONLY)) &&
- !(ad->ad_md->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);
- /* it's not new anymore */
- ad->ad_md->adf_flags &= ~( O_TRUNC | O_CREAT );
- ad->ad_md->adf_refcount++;
- goto sfm;
- }
-
- memset(ad->ad_eid, 0, sizeof( ad->ad_eid ));
- ad->ad_rlen = 0;
- ad_p = ad->ad_ops->ad_path( path, adflags );
+ LOG(log_debug, logtype_default,
+ "ad_open(\"%s\", %s): BEGIN [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
+ fullpathname(path), adflags2logstr(adflags),
+ ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
+ ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
+ ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
- hoflags = oflags & ~(O_CREAT | O_EXCL);
- if (!(adflags & ADFLAGS_RDONLY)) {
- hoflags = (hoflags & ~(O_RDONLY | O_WRONLY)) | O_RDWR;
- }
- ad->ad_md->adf_fd = open( ad_p, hoflags | O_NOFOLLOW, 0 );
- if (ad->ad_md->adf_fd < 0 ) {
- if ((errno == EACCES || errno == EROFS) && !(oflags & O_RDWR)) {
- hoflags = oflags & ~(O_CREAT | O_EXCL);
- ad->ad_md->adf_fd = open( ad_p, hoflags | O_NOFOLLOW, 0 );
- }
- }
+ if (adflags & ADFLAGS_CHECK_OF)
+ /* Checking for open forks requires sharemode lock support (ie RDWR instead of RDONLY) */
+ adflags |= ADFLAGS_SETSHRMD;
- if ( ad->ad_md->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)
- */
- LOG(log_debug, logtype_default, "ad_open(\"%s\"): {cwd: \"%s\"} creating adouble file",
- ad_p, getcwdpath());
- admode = mode;
- errno = 0;
- st_invalid = ad_mode_st(ad_p, &admode, &st_dir);
- if ((ad->ad_options & ADVOL_UNIXPRIV)) {
- admode = mode;
- }
- admode = ad_hf_mode(admode);
- if ((errno == ENOENT) && (ad->ad_flags != AD_VERSION2_OSX)) {
- if (ad->ad_ops->ad_mkrf( ad_p) < 0) {
- return ad_error(ad, adflags);
- }
- admode = mode;
- st_invalid = ad_mode_st(ad_p, &admode, &st_dir);
- if ((ad->ad_options & ADVOL_UNIXPRIV)) {
- admode = mode;
- }
- admode = ad_hf_mode(admode);
- }
- /* retry with O_CREAT */
- ad->ad_md->adf_fd = open( ad_p, oflags,admode );
- if ( ad->ad_md->adf_fd < 0 ) {
- return ad_error(ad, adflags);
- }
- ad->ad_md->adf_flags = oflags;
- /* just created, set owner if admin owner (root) */
- if (!st_invalid) {
- ad_chown(ad_p, &st_dir);
- }
- }
- else {
- return ad_error(ad, adflags);
- }
- } else {
- ad->ad_md->adf_flags = hoflags;
- if (fstat(ad->ad_md->adf_fd, &st_meta) == 0 && st_meta.st_size == 0) {
- /* for 0 length files, treat them as new. */
- ad->ad_md->adf_flags |= O_TRUNC;
- }
- else {
- /* we have valid data in st_meta stat structure, reused it
- in ad_header_read
- */
- pst = &st_meta;
- }
+ if ((ad->ad_vers == AD_VERSION2) && (adflags & ADFLAGS_RF)) {
+ adflags |= ADFLAGS_HF;
+ if (adflags & ADFLAGS_NORF)
+ adflags |= ADFLAGS_NOHF;
}
- AD_SET(ad->ad_md->adf_off);
- ad->ad_md->adf_refcount = 1;
- adf_lock_init(ad->ad_md);
- if ((ad->ad_md->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;
- }
- ad_flush(ad);
+ if (ad->ad_inited != AD_INITED) {
+ ad->ad_adflags = adflags;
+ ad->ad_inited = AD_INITED;
} else {
- /* Read the adouble header in and parse it.*/
- if (ad->ad_ops->ad_header_read( ad , pst) < 0
- || ad->ad_ops->ad_header_upgrade(ad, ad_p) < 0)
- {
- int err = errno;
-
- ad_close( ad, adflags );
- errno = err;
- return -1;
- }
+ ad->ad_open_forks = ((ad->ad_data_fork.adf_refcount > 0) ? ATTRBIT_DOPEN : 0);
+ if (ad->ad_resource_fork.adf_refcount > 0)
+ ad->ad_open_forks |= ATTRBIT_ROPEN;
}
- /* ****************************************** */
- /* open the resource fork if SFM */
-sfm:
- if (ad->ad_flags != AD_VERSION1_SFM) {
- return 0;
- }
+ va_start(args, adflags);
+ if (adflags & ADFLAGS_CREATE)
+ mode = va_arg(args, mode_t);
+ va_end(args);
- if ((adflags & ADFLAGS_DIR)) {
- /* no resource fork for directories / volumes XXX it's false! */
- return 0;
+ if (adflags & ADFLAGS_DF) {
+ EC_ZERO( ad_open_df(path, adflags, mode, ad) );
}
- /* untrue yet but ad_close will decremente it*/
- ad->ad_resource_fork.adf_refcount++;
-
- if (ad_reso_fileno(ad) != -1) { /* the file is already open */
- if ((oflags & ( O_RDWR | O_WRONLY)) &&
- !(ad->ad_resource_fork.adf_flags & ( O_RDWR | O_WRONLY))) {
-
- ad_close( ad, open_df | ADFLAGS_HF);
- errno = EACCES;
- return -1;
- }
- return 0;
+ if (adflags & ADFLAGS_HF) {
+ EC_ZERO( ad_open_hf(path, adflags, mode, ad) );
}
- ad_p = ad->ad_ops->ad_path( path, ADFLAGS_RF );
-
- admode = mode;
- st_invalid = ad_mode_st(ad_p, &admode, &st_dir);
-
- if ((ad->ad_options & ADVOL_UNIXPRIV)) {
- admode = mode;
+ if (adflags & ADFLAGS_RF) {
+ EC_ZERO( ad_open_rf(path, adflags, mode, ad) );
}
- hoflags = (oflags & ~(O_RDONLY | O_WRONLY)) | O_RDWR;
- ad->ad_resource_fork.adf_fd = open( ad_p, hoflags, admode );
-
- if (ad->ad_resource_fork.adf_fd < 0 ) {
- if ((errno == EACCES || errno == EROFS) && !(oflags & O_RDWR)) {
- hoflags = oflags;
- ad->ad_resource_fork.adf_fd =open( ad_p, hoflags, admode );
- }
+ if (adflags & ADFLAGS_CHECK_OF) {
+ ad->ad_open_forks |= ad_openforks(ad, ad->ad_open_forks);
}
- if ( ad->ad_resource_fork.adf_fd < 0) {
- int err = errno;
+EC_CLEANUP:
+ LOG(log_debug, logtype_default,
+ "ad_open(\"%s\"): END: %d [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
+ fullpathname(path), ret,
+ ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
+ ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
+ ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
- ad_close( ad, adflags );
- errno = err;
- return -1;
- }
- adf_lock_init(&ad->ad_resource_fork);
- AD_SET(ad->ad_resource_fork.adf_off);
- ad->ad_resource_fork.adf_flags = hoflags;
- if ((oflags & O_CREAT) && !st_invalid) {
- /* just created, set owner if admin (root) */
- ad_chown(ad_p, &st_dir);
- }
- else if (!fstat(ad->ad_resource_fork.adf_fd, &st_meta)) {
- ad->ad_rlen = st_meta.st_size;
- }
- return 0 ;
+ EC_EXIT;
}
/*!
*
* @param name name of file/dir
* @param flags ADFLAGS_DIR: name is a directory \n
- * ADFLAGS_CREATE: force creation of header file, but only as user, not as root\n
- * ADFLAGS_OPENFORKS: test if name is open by another afpd process
+ * ADFLAGS_CHECK_OF: test if name is open by us or another afpd process
*
* @param adp pointer to struct adouble
- *
- * @note caller MUST pass ADFLAGS_DIR for directories. Whether ADFLAGS_CREATE really creates
- * a adouble file depends on various other volume options, eg. ADVOL_CACHE
*/
int ad_metadata(const char *name, int flags, struct adouble *adp)
{
uid_t uid;
- int ret, err, dir;
- int create = O_RDONLY;
+ int ret, err, oflags;
- dir = flags & ADFLAGS_DIR;
+ /* Sanitize flags */
+ oflags = (flags & (ADFLAGS_CHECK_OF | ADFLAGS_DIR)) | ADFLAGS_HF | ADFLAGS_RDONLY;
- /* Check if we shall call ad_open with O_CREAT */
- if ( (adp->ad_options & ADVOL_CACHE)
- && ! (adp->ad_options & ADVOL_NOADOUBLE)
- && (flags & ADFLAGS_CREATE) ) {
- create = O_CREAT | O_RDWR;
- }
- if ((ret = ad_open(name, ADFLAGS_HF | dir, create, 0666, adp)) < 0 && errno == EACCES) {
+ if ((ret = ad_open(adp, name, oflags)) < 0 && errno == EACCES) {
uid = geteuid();
if (seteuid(0)) {
LOG(log_error, logtype_default, "ad_metadata(%s): seteuid failed %s", name, strerror(errno));
return -1;
}
/* we are root open read only */
- ret = ad_open(name, ADFLAGS_HF|ADFLAGS_RDONLY| dir, O_RDONLY, 0, adp);
+ ret = ad_open(adp, name, oflags);
err = errno;
if ( seteuid(uid) < 0) {
LOG(log_error, logtype_default, "ad_metadata: can't seteuid back");
errno = err;
}
- if (!ret && (ADFLAGS_OPENFORKS & flags)) {
- /*
- we need to check if the file is open by another process.
- it's slow so we only do it if we have to:
- - it's requested.
- - we don't already have the answer!
- */
- adp->ad_open_forks |= ad_openforks(adp, adp->ad_open_forks);
- }
return ret;
}
}
if (dirfd != -1) {
+
if (fchdir(cwdfd) != 0) {
LOG(log_error, logtype_afpd, "ad_openat: cant chdir back, exiting");
exit(EXITERR_SYS);
}
-/* ----------------------------------- */
-static int new_rfork(const char *path, struct adouble *ad, int adflags)
+int ad_refresh(const char *path, struct adouble *ad)
{
- 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));
+ switch (ad->ad_vers) {
+ case AD_VERSION2:
+ if (ad_meta_fileno(ad) == -1)
+ return -1;
+ return ad->ad_ops->ad_header_read(NULL, ad, NULL);
+ break;
+ case AD_VERSION_EA:
+#ifdef HAVE_EAFD
+ if (AD_META_OPEN(ad)) {
+ if (ad_data_fileno(ad) == -1)
+ return -1;
+ // TODO: read meta EA
+ }
-#if AD_VERSION == AD_VERSION2
- if (ad->ad_flags == AD_VERSION2)
- eid = entry_order2;
- else if (ad->ad_flags == AD_VERSION2_OSX)
- eid = entry_order_osx;
- else if (ad->ad_flags == AD_VERSION1_SFM) {
- ad->ad_magic = SFM_MAGIC;
- eid = entry_order_sfm;
- }
- else
+ if (AD_RSRC_OPEN(ad)) {
+ if (ad_reso_fileno(ad) == -1)
+ return -1;
+ struct stat st;
+ if (fstat(ad_reso_fileno(ad), &st) == -1)
+ return -1;
+ ad->ad_rlen = st.st_size;
+ }
+#else
+ if (AD_META_OPEN(ad)) {
+ if (ad_data_fileno(ad) == -1)
+ return -1;
+ // TODO: read meta EA
+ }
+ if (AD_RSRC_OPEN(ad)) {
+ if (ad_reso_fileno(ad) == -1)
+ return -1;
+ if (ad_header_read_osx(path, ad, NULL) < 0)
+ return -1;
+ }
#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));
- }
-
- if (lstat(path, &st) < 0) {
+ return ad->ad_ops->ad_header_read(path, ad, NULL);
+ break;
+ default:
return -1;
+ break;
}
- /* 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)
-{
-
- if (ad_meta_fileno(ad) < 0)
- return -1;
-
- return ad->ad_ops->ad_header_read(ad, NULL);
}
-int ad_openat(int dirfd, /* dir fd openat like */
+int ad_openat(struct adouble *ad,
+ int dirfd, /* dir fd openat like */
const char *path,
- int adflags,
- int oflags,
- int mode,
- struct adouble *ad)
+ int adflags, ...)
{
- int ret = 0;
+ EC_INIT;
int cwdfd = -1;
+ va_list args;
+ mode_t mode;
if (dirfd != -1) {
- if ((cwdfd = open(".", O_RDONLY) == -1) || (fchdir(dirfd) != 0)) {
- ret = -1;
- goto exit;
- }
+ if ((cwdfd = open(".", O_RDONLY) == -1) || (fchdir(dirfd) != 0))
+ EC_FAIL;
}
- if (ad_open(path, adflags, oflags, mode, ad) < 0) {
- ret = -1;
- goto exit;
- }
+ va_start(args, adflags);
+ if (adflags & ADFLAGS_CREATE)
+ mode = va_arg(args, mode_t);
+ va_end(args);
+
+ EC_NEG1( ad_open(ad, path, adflags, mode) );
if (dirfd != -1) {
if (fchdir(cwdfd) != 0) {
- LOG(log_error, logtype_afpd, "ad_openat: cant chdir back, exiting");
- exit(EXITERR_SYS);
+ AFP_PANIC("ad_openat: cant chdir back");
}
}
-exit:
+EC_CLEANUP:
if (cwdfd != -1)
close(cwdfd);
projects / netatalk.git / blobdiff