+/*
+ * $Id: ad_attr.c,v 1.14 2010-01-06 14:05:15 franklahm Exp $
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif /* HAVE_CONFIG_H */
+
#include <string.h>
#include <atalk/adouble.h>
#define FILEIOFF_ATTR 14
#define AFPFILEIOFF_ATTR 2
+/*
+ Note:
+ the "shared" and "invisible" attributes are opaque and stored and
+ retrieved from the FinderFlags. This fixes Bug #2802236:
+ <https://sourceforge.net/tracker/?func=detail&aid=2802236&group_id=8642&atid=108642>
+ */
int ad_getattr(const struct adouble *ad, u_int16_t *attr)
{
- if (ad->ad_version == AD_VERSION1)
- memcpy(attr, ad_entry(ad, ADEID_FILEI) + FILEIOFF_ATTR,
- sizeof(u_int16_t));
- else if (ad->ad_version == AD_VERSION2)
- memcpy(attr, ad_entry(ad, ADEID_AFPFILEI) + AFPFILEIOFF_ATTR,
- sizeof(u_int16_t));
- else
- return -1;
-
- return 0;
+ u_int16_t fflags;
+ *attr = 0;
+
+ if (ad->ad_version == AD_VERSION1) {
+ if (ad_getentryoff(ad, ADEID_FILEI)) {
+ memcpy(attr, ad_entry(ad, ADEID_FILEI) + FILEIOFF_ATTR,
+ sizeof(u_int16_t));
+ }
+ }
+#if AD_VERSION == AD_VERSION2
+ else if (ad->ad_version == AD_VERSION2) {
+ if (ad_getentryoff(ad, ADEID_AFPFILEI)) {
+ memcpy(attr, ad_entry(ad, ADEID_AFPFILEI) + AFPFILEIOFF_ATTR, 2);
+
+ /* Now get opaque flags from FinderInfo */
+ memcpy(&fflags, ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRFLAGOFF, 2);
+ if (fflags & htons(FINDERINFO_INVISIBLE))
+ *attr |= htons(ATTRBIT_INVISIBLE);
+ else
+ *attr &= htons(~ATTRBIT_INVISIBLE);
+ /*
+ This one is tricky, I actually got it wrong the first time:
+ for directories bit 1<<1 is ATTRBIT_EXPFLDR and is NOT opaque !
+ */
+ if ( ! (ad->ad_adflags & ADFLAGS_DIR)) {
+ if (fflags & htons(FINDERINFO_ISHARED))
+ *attr |= htons(ATTRBIT_MULTIUSER);
+ else
+ *attr &= htons(~ATTRBIT_MULTIUSER);
+ }
+ }
+ }
+#endif
+ else
+ return -1;
+
+ *attr |= htons(ad->ad_open_forks);
+
+ return 0;
+}
+
+/* ----------------- */
+int ad_setattr(const struct adouble *ad, const u_int16_t attribute)
+{
+ u_int16_t *fflags;
+
+ /* we don't save open forks indicator */
+ u_int16_t attr = attribute & ~htons(ATTRBIT_DOPEN | ATTRBIT_ROPEN);
+
+ /* Proactively (10.4 does indeed try to set ATTRBIT_MULTIUSER (=ATTRBIT_EXPFLDR)
+ for dirs with SetFile -a M <dir> ) disable all flags not defined for dirs. */
+ if (ad->ad_adflags & ADFLAGS_DIR)
+ attr &= ~(ATTRBIT_MULTIUSER | ATTRBIT_NOWRITE | ATTRBIT_NOCOPY);
+
+ if (ad->ad_version == AD_VERSION1) {
+ if (ad_getentryoff(ad, ADEID_FILEI)) {
+ memcpy(ad_entry(ad, ADEID_FILEI) + FILEIOFF_ATTR, &attr,
+ sizeof(attr));
+ }
+ }
+#if AD_VERSION == AD_VERSION2
+ else if (ad->ad_version == AD_VERSION2) {
+ if (ad_getentryoff(ad, ADEID_AFPFILEI)) {
+ memcpy(ad_entry(ad, ADEID_AFPFILEI) + AFPFILEIOFF_ATTR, &attr, sizeof(attr));
+
+ /* Now set opaque flags in FinderInfo too */
+ fflags = (u_int16_t *)ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRFLAGOFF;
+ if (attr & htons(ATTRBIT_INVISIBLE))
+ *fflags |= htons(FINDERINFO_INVISIBLE);
+ else
+ *fflags &= htons(~FINDERINFO_INVISIBLE);
+
+ /* See above comment in ad_getattr() */
+ if (attr & htons(ATTRBIT_MULTIUSER)) {
+ if ( ! (ad->ad_adflags & ADFLAGS_DIR) )
+ *fflags |= htons(FINDERINFO_ISHARED);
+ } else
+ *fflags &= htons(~FINDERINFO_ISHARED);
+ }
+ }
+#endif
+ else
+ return -1;
+
+ return 0;
+}
+
+/* --------------
+ * save file/folder ID in AppleDoubleV2 netatalk private parameters
+ * return 1 if resource fork has been modified
+ */
+#if AD_VERSION == AD_VERSION2
+int ad_setid (struct adouble *adp, const dev_t dev, const ino_t ino , const u_int32_t id, const cnid_t did, const void *stamp)
+{
+ if ((adp->ad_flags == AD_VERSION2) && (adp->ad_options & ADVOL_CACHE)) {
+
+ /* ad_getid depends on this to detect presence of ALL entries */
+ ad_setentrylen( adp, ADEID_PRIVID, sizeof(id));
+ memcpy(ad_entry( adp, ADEID_PRIVID ), &id, sizeof(id));
+
+ ad_setentrylen( adp, ADEID_PRIVDEV, sizeof(dev_t));
+ if ((adp->ad_options & ADVOL_NODEV)) {
+ memset(ad_entry( adp, ADEID_PRIVDEV ), 0, sizeof(dev_t));
+ } else {
+ memcpy(ad_entry( adp, ADEID_PRIVDEV ), &dev, sizeof(dev_t));
+ }
+
+ ad_setentrylen( adp, ADEID_PRIVINO, sizeof(ino_t));
+ memcpy(ad_entry( adp, ADEID_PRIVINO ), &ino, sizeof(ino_t));
+
+ ad_setentrylen( adp, ADEID_DID, sizeof(did));
+ memcpy(ad_entry( adp, ADEID_DID ), &did, sizeof(did));
+
+ ad_setentrylen( adp, ADEID_PRIVSYN, ADEDLEN_PRIVSYN);
+ memcpy(ad_entry( adp, ADEID_PRIVSYN ), stamp, ADEDLEN_PRIVSYN);
+ return 1;
+ }
+ return 0;
+}
+
+/* ----------------------------- */
+u_int32_t ad_getid (struct adouble *adp, const dev_t st_dev, const ino_t st_ino , const cnid_t did, const void *stamp)
+{
+ u_int32_t aint = 0;
+ dev_t dev;
+ ino_t ino;
+ cnid_t a_did;
+ char temp[ADEDLEN_PRIVSYN];
+
+ /* look in AD v2 header
+ * note inode and device are opaques and not in network order
+ * only use the ID if adouble is writable for us.
+ */
+ if (adp
+ && (adp->ad_options & ADVOL_CACHE)
+ && (adp->ad_md->adf_flags & O_RDWR )
+ && (sizeof(dev_t) == ad_getentrylen(adp, ADEID_PRIVDEV)) /* One check to ensure ALL values are there */
+ ) {
+ memcpy(&dev, ad_entry(adp, ADEID_PRIVDEV), sizeof(dev_t));
+ memcpy(&ino, ad_entry(adp, ADEID_PRIVINO), sizeof(ino_t));
+ memcpy(temp, ad_entry(adp, ADEID_PRIVSYN), sizeof(temp));
+ memcpy(&a_did, ad_entry(adp, ADEID_DID), sizeof(cnid_t));
+
+ if ( ((adp->ad_options & ADVOL_NODEV) || dev == st_dev)
+ && ino == st_ino
+ && (!did || a_did == did)
+ && (memcmp(stamp, temp, sizeof(temp)) == 0) ) {
+ memcpy(&aint, ad_entry(adp, ADEID_PRIVID), sizeof(aint));
+ return aint;
+ }
+ }
+ return 0;
+}
+
+/* ----------------------------- */
+u_int32_t ad_forcegetid (struct adouble *adp)
+{
+ u_int32_t aint = 0;
+
+ if (adp && (adp->ad_options & ADVOL_CACHE)) {
+ memcpy(&aint, ad_entry(adp, ADEID_PRIVID), sizeof(aint));
+ return aint;
+ }
+ return 0;
}
+#endif
-int ad_setattr(const struct adouble *ad, const u_int16_t attr)
+/* -----------------
+ * set resource fork filename attribute.
+ */
+int ad_setname(struct adouble *ad, const char *path)
{
- if (ad->ad_version == AD_VERSION1)
- memcpy(ad_entry(ad, ADEID_FILEI) + FILEIOFF_ATTR, &attr,
- sizeof(attr));
- else if (ad->ad_version == AD_VERSION2)
- memcpy(ad_entry(ad, ADEID_AFPFILEI) + AFPFILEIOFF_ATTR, &attr,
- sizeof(attr));
- else
- return -1;
-
- return 0;
+ if (ad_getentryoff(ad, ADEID_NAME)) {
+ ad_setentrylen( ad, ADEID_NAME, strlen( path ));
+ memcpy(ad_entry( ad, ADEID_NAME ), path, ad_getentrylen( ad, ADEID_NAME ));
+ return 1;
+ }
+ return 0;
}
projects / netatalk.git / blobdiff