--- /dev/null
+/*
+ * libhfs - library for reading and writing Macintosh HFS volumes
+ * Copyright (C) 1996-1998 Robert Leslie
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ *
+ * $Id: record.c,v 1.9 1998/11/02 22:09:07 rob Exp $
+ */
+
+#include "config.h"
+#include "libhfs.h"
+#include "record.h"
+#include "data.h"
+
+/*
+ * NAME: record->packcatkey()
+ * DESCRIPTION: pack a catalog record key
+ */
+void r_packcatkey(const CatKeyRec *key, byte *pkey, unsigned int *len)
+{
+ const byte *start = pkey;
+
+ d_storesb(&pkey, key->ckrKeyLen);
+ d_storesb(&pkey, key->ckrResrv1);
+ d_storeul(&pkey, key->ckrParID);
+
+ d_storestr(&pkey, key->ckrCName, sizeof(key->ckrCName));
+
+ if (len)
+ *len = HFS_RECKEYSKIP(start);
+}
+
+/*
+ * NAME: record->unpackcatkey()
+ * DESCRIPTION: unpack a catalog record key
+ */
+void r_unpackcatkey(const byte *pkey, CatKeyRec *key)
+{
+ d_fetchsb(&pkey, &key->ckrKeyLen);
+ d_fetchsb(&pkey, &key->ckrResrv1);
+ d_fetchul(&pkey, &key->ckrParID);
+
+ d_fetchstr(&pkey, key->ckrCName, sizeof(key->ckrCName));
+}
+
+/*
+ * NAME: record->packextkey()
+ * DESCRIPTION: pack an extents record key
+ */
+void r_packextkey(const ExtKeyRec *key, byte *pkey, unsigned int *len)
+{
+ const byte *start = pkey;
+
+ d_storesb(&pkey, key->xkrKeyLen);
+ d_storesb(&pkey, key->xkrFkType);
+ d_storeul(&pkey, key->xkrFNum);
+ d_storeuw(&pkey, key->xkrFABN);
+
+ if (len)
+ *len = HFS_RECKEYSKIP(start);
+}
+
+/*
+ * NAME: record->unpackextkey()
+ * DESCRIPTION: unpack an extents record key
+ */
+void r_unpackextkey(const byte *pkey, ExtKeyRec *key)
+{
+ d_fetchsb(&pkey, &key->xkrKeyLen);
+ d_fetchsb(&pkey, &key->xkrFkType);
+ d_fetchul(&pkey, &key->xkrFNum);
+ d_fetchuw(&pkey, &key->xkrFABN);
+}
+
+/*
+ * NAME: record->comparecatkeys()
+ * DESCRIPTION: compare two (packed) catalog record keys
+ */
+int r_comparecatkeys(const CatKeyRec *key1, const CatKeyRec *key2)
+{
+ int diff;
+
+ diff = key1->ckrParID - key2->ckrParID;
+ if (diff)
+ return diff;
+
+ return d_relstring(key1->ckrCName, key2->ckrCName);
+}
+
+/*
+ * NAME: record->compareextkeys()
+ * DESCRIPTION: compare two (packed) extents record keys
+ */
+int r_compareextkeys(const ExtKeyRec *key1, const ExtKeyRec *key2)
+{
+ int diff;
+
+ diff = key1->xkrFNum - key2->xkrFNum;
+ if (diff)
+ return diff;
+
+ diff = (unsigned char) key1->xkrFkType -
+ (unsigned char) key2->xkrFkType;
+ if (diff)
+ return diff;
+
+ return key1->xkrFABN - key2->xkrFABN;
+}
+
+/*
+ * NAME: record->packcatdata()
+ * DESCRIPTION: pack catalog record data
+ */
+void r_packcatdata(const CatDataRec *data, byte *pdata, unsigned int *len)
+{
+ const byte *start = pdata;
+ int i;
+
+ d_storesb(&pdata, data->cdrType);
+ d_storesb(&pdata, data->cdrResrv2);
+
+ switch (data->cdrType)
+ {
+ case cdrDirRec:
+ d_storesw(&pdata, data->u.dir.dirFlags);
+ d_storeuw(&pdata, data->u.dir.dirVal);
+ d_storeul(&pdata, data->u.dir.dirDirID);
+ d_storesl(&pdata, data->u.dir.dirCrDat);
+ d_storesl(&pdata, data->u.dir.dirMdDat);
+ d_storesl(&pdata, data->u.dir.dirBkDat);
+
+ d_storesw(&pdata, data->u.dir.dirUsrInfo.frRect.top);
+ d_storesw(&pdata, data->u.dir.dirUsrInfo.frRect.left);
+ d_storesw(&pdata, data->u.dir.dirUsrInfo.frRect.bottom);
+ d_storesw(&pdata, data->u.dir.dirUsrInfo.frRect.right);
+ d_storesw(&pdata, data->u.dir.dirUsrInfo.frFlags);
+ d_storesw(&pdata, data->u.dir.dirUsrInfo.frLocation.v);
+ d_storesw(&pdata, data->u.dir.dirUsrInfo.frLocation.h);
+ d_storesw(&pdata, data->u.dir.dirUsrInfo.frView);
+
+ d_storesw(&pdata, data->u.dir.dirFndrInfo.frScroll.v);
+ d_storesw(&pdata, data->u.dir.dirFndrInfo.frScroll.h);
+ d_storesl(&pdata, data->u.dir.dirFndrInfo.frOpenChain);
+ d_storesw(&pdata, data->u.dir.dirFndrInfo.frUnused);
+ d_storesw(&pdata, data->u.dir.dirFndrInfo.frComment);
+ d_storesl(&pdata, data->u.dir.dirFndrInfo.frPutAway);
+
+ for (i = 0; i < 4; ++i)
+ d_storesl(&pdata, data->u.dir.dirResrv[i]);
+
+ break;
+
+ case cdrFilRec:
+ d_storesb(&pdata, data->u.fil.filFlags);
+ d_storesb(&pdata, data->u.fil.filTyp);
+
+ d_storesl(&pdata, data->u.fil.filUsrWds.fdType);
+ d_storesl(&pdata, data->u.fil.filUsrWds.fdCreator);
+ d_storesw(&pdata, data->u.fil.filUsrWds.fdFlags);
+ d_storesw(&pdata, data->u.fil.filUsrWds.fdLocation.v);
+ d_storesw(&pdata, data->u.fil.filUsrWds.fdLocation.h);
+ d_storesw(&pdata, data->u.fil.filUsrWds.fdFldr);
+
+ d_storeul(&pdata, data->u.fil.filFlNum);
+
+ d_storeuw(&pdata, data->u.fil.filStBlk);
+ d_storeul(&pdata, data->u.fil.filLgLen);
+ d_storeul(&pdata, data->u.fil.filPyLen);
+
+ d_storeuw(&pdata, data->u.fil.filRStBlk);
+ d_storeul(&pdata, data->u.fil.filRLgLen);
+ d_storeul(&pdata, data->u.fil.filRPyLen);
+
+ d_storesl(&pdata, data->u.fil.filCrDat);
+ d_storesl(&pdata, data->u.fil.filMdDat);
+ d_storesl(&pdata, data->u.fil.filBkDat);
+
+ d_storesw(&pdata, data->u.fil.filFndrInfo.fdIconID);
+ for (i = 0; i < 4; ++i)
+ d_storesw(&pdata, data->u.fil.filFndrInfo.fdUnused[i]);
+ d_storesw(&pdata, data->u.fil.filFndrInfo.fdComment);
+ d_storesl(&pdata, data->u.fil.filFndrInfo.fdPutAway);
+
+ d_storeuw(&pdata, data->u.fil.filClpSize);
+
+ for (i = 0; i < 3; ++i)
+ {
+ d_storeuw(&pdata, data->u.fil.filExtRec[i].xdrStABN);
+ d_storeuw(&pdata, data->u.fil.filExtRec[i].xdrNumABlks);
+ }
+
+ for (i = 0; i < 3; ++i)
+ {
+ d_storeuw(&pdata, data->u.fil.filRExtRec[i].xdrStABN);
+ d_storeuw(&pdata, data->u.fil.filRExtRec[i].xdrNumABlks);
+ }
+
+ d_storesl(&pdata, data->u.fil.filResrv);
+
+ break;
+
+ case cdrThdRec:
+ for (i = 0; i < 2; ++i)
+ d_storesl(&pdata, data->u.dthd.thdResrv[i]);
+
+ d_storeul(&pdata, data->u.dthd.thdParID);
+
+ d_storestr(&pdata, data->u.dthd.thdCName,
+ sizeof(data->u.dthd.thdCName));
+
+ break;
+
+ case cdrFThdRec:
+ for (i = 0; i < 2; ++i)
+ d_storesl(&pdata, data->u.fthd.fthdResrv[i]);
+
+ d_storeul(&pdata, data->u.fthd.fthdParID);
+
+ d_storestr(&pdata, data->u.fthd.fthdCName,
+ sizeof(data->u.fthd.fthdCName));
+
+ break;
+
+ default:
+ ASSERT(0);
+ }
+
+ if (len)
+ *len += pdata - start;
+}
+
+/*
+ * NAME: record->unpackcatdata()
+ * DESCRIPTION: unpack catalog record data
+ */
+void r_unpackcatdata(const byte *pdata, CatDataRec *data)
+{
+ int i;
+
+ d_fetchsb(&pdata, &data->cdrType);
+ d_fetchsb(&pdata, &data->cdrResrv2);
+
+ switch (data->cdrType)
+ {
+ case cdrDirRec:
+ d_fetchsw(&pdata, &data->u.dir.dirFlags);
+ d_fetchuw(&pdata, &data->u.dir.dirVal);
+ d_fetchul(&pdata, &data->u.dir.dirDirID);
+ d_fetchsl(&pdata, &data->u.dir.dirCrDat);
+ d_fetchsl(&pdata, &data->u.dir.dirMdDat);
+ d_fetchsl(&pdata, &data->u.dir.dirBkDat);
+
+ d_fetchsw(&pdata, &data->u.dir.dirUsrInfo.frRect.top);
+ d_fetchsw(&pdata, &data->u.dir.dirUsrInfo.frRect.left);
+ d_fetchsw(&pdata, &data->u.dir.dirUsrInfo.frRect.bottom);
+ d_fetchsw(&pdata, &data->u.dir.dirUsrInfo.frRect.right);
+ d_fetchsw(&pdata, &data->u.dir.dirUsrInfo.frFlags);
+ d_fetchsw(&pdata, &data->u.dir.dirUsrInfo.frLocation.v);
+ d_fetchsw(&pdata, &data->u.dir.dirUsrInfo.frLocation.h);
+ d_fetchsw(&pdata, &data->u.dir.dirUsrInfo.frView);
+
+ d_fetchsw(&pdata, &data->u.dir.dirFndrInfo.frScroll.v);
+ d_fetchsw(&pdata, &data->u.dir.dirFndrInfo.frScroll.h);
+ d_fetchsl(&pdata, &data->u.dir.dirFndrInfo.frOpenChain);
+ d_fetchsw(&pdata, &data->u.dir.dirFndrInfo.frUnused);
+ d_fetchsw(&pdata, &data->u.dir.dirFndrInfo.frComment);
+ d_fetchsl(&pdata, &data->u.dir.dirFndrInfo.frPutAway);
+
+ for (i = 0; i < 4; ++i)
+ d_fetchsl(&pdata, &data->u.dir.dirResrv[i]);
+
+ break;
+
+ case cdrFilRec:
+ d_fetchsb(&pdata, &data->u.fil.filFlags);
+ d_fetchsb(&pdata, &data->u.fil.filTyp);
+
+ d_fetchsl(&pdata, &data->u.fil.filUsrWds.fdType);
+ d_fetchsl(&pdata, &data->u.fil.filUsrWds.fdCreator);
+ d_fetchsw(&pdata, &data->u.fil.filUsrWds.fdFlags);
+ d_fetchsw(&pdata, &data->u.fil.filUsrWds.fdLocation.v);
+ d_fetchsw(&pdata, &data->u.fil.filUsrWds.fdLocation.h);
+ d_fetchsw(&pdata, &data->u.fil.filUsrWds.fdFldr);
+
+ d_fetchul(&pdata, &data->u.fil.filFlNum);
+
+ d_fetchuw(&pdata, &data->u.fil.filStBlk);
+ d_fetchul(&pdata, &data->u.fil.filLgLen);
+ d_fetchul(&pdata, &data->u.fil.filPyLen);
+
+ d_fetchuw(&pdata, &data->u.fil.filRStBlk);
+ d_fetchul(&pdata, &data->u.fil.filRLgLen);
+ d_fetchul(&pdata, &data->u.fil.filRPyLen);
+
+ d_fetchsl(&pdata, &data->u.fil.filCrDat);
+ d_fetchsl(&pdata, &data->u.fil.filMdDat);
+ d_fetchsl(&pdata, &data->u.fil.filBkDat);
+
+ d_fetchsw(&pdata, &data->u.fil.filFndrInfo.fdIconID);
+ for (i = 0; i < 4; ++i)
+ d_fetchsw(&pdata, &data->u.fil.filFndrInfo.fdUnused[i]);
+ d_fetchsw(&pdata, &data->u.fil.filFndrInfo.fdComment);
+ d_fetchsl(&pdata, &data->u.fil.filFndrInfo.fdPutAway);
+
+ d_fetchuw(&pdata, &data->u.fil.filClpSize);
+
+ for (i = 0; i < 3; ++i)
+ {
+ d_fetchuw(&pdata, &data->u.fil.filExtRec[i].xdrStABN);
+ d_fetchuw(&pdata, &data->u.fil.filExtRec[i].xdrNumABlks);
+ }
+
+ for (i = 0; i < 3; ++i)
+ {
+ d_fetchuw(&pdata, &data->u.fil.filRExtRec[i].xdrStABN);
+ d_fetchuw(&pdata, &data->u.fil.filRExtRec[i].xdrNumABlks);
+ }
+
+ d_fetchsl(&pdata, &data->u.fil.filResrv);
+
+ break;
+
+ case cdrThdRec:
+ for (i = 0; i < 2; ++i)
+ d_fetchsl(&pdata, &data->u.dthd.thdResrv[i]);
+
+ d_fetchul(&pdata, &data->u.dthd.thdParID);
+
+ d_fetchstr(&pdata, data->u.dthd.thdCName,
+ sizeof(data->u.dthd.thdCName));
+
+ break;
+
+ case cdrFThdRec:
+ for (i = 0; i < 2; ++i)
+ d_fetchsl(&pdata, &data->u.fthd.fthdResrv[i]);
+
+ d_fetchul(&pdata, &data->u.fthd.fthdParID);
+
+ d_fetchstr(&pdata, data->u.fthd.fthdCName,
+ sizeof(data->u.fthd.fthdCName));
+
+ break;
+
+ default:
+ ASSERT(0);
+ }
+}
+
+/*
+ * NAME: record->packextdata()
+ * DESCRIPTION: pack extent record data
+ */
+void r_packextdata(const ExtDataRec *data, byte *pdata, unsigned int *len)
+{
+ const byte *start = pdata;
+ int i;
+
+ for (i = 0; i < 3; ++i)
+ {
+ d_storeuw(&pdata, (*data)[i].xdrStABN);
+ d_storeuw(&pdata, (*data)[i].xdrNumABlks);
+ }
+
+ if (len)
+ *len += pdata - start;
+}
+
+/*
+ * NAME: record->unpackextdata()
+ * DESCRIPTION: unpack extent record data
+ */
+void r_unpackextdata(const byte *pdata, ExtDataRec *data)
+{
+ int i;
+
+ for (i = 0; i < 3; ++i)
+ {
+ d_fetchuw(&pdata, &(*data)[i].xdrStABN);
+ d_fetchuw(&pdata, &(*data)[i].xdrNumABlks);
+ }
+}
+
+/*
+ * NAME: record->makecatkey()
+ * DESCRIPTION: construct a catalog record key
+ */
+void r_makecatkey(CatKeyRec *key, unsigned long parid, const char *name)
+{
+ int len;
+
+ len = strlen(name) + 1;
+
+ key->ckrKeyLen = 0x05 + len + (len & 1);
+ key->ckrResrv1 = 0;
+ key->ckrParID = parid;
+
+ strcpy(key->ckrCName, name);
+}
+
+/*
+ * NAME: record->makeextkey()
+ * DESCRIPTION: construct an extents record key
+ */
+void r_makeextkey(ExtKeyRec *key,
+ int fork, unsigned long fnum, unsigned int fabn)
+{
+ key->xkrKeyLen = 0x07;
+ key->xkrFkType = fork;
+ key->xkrFNum = fnum;
+ key->xkrFABN = fabn;
+}
+
+/*
+ * NAME: record->packcatrec()
+ * DESCRIPTION: create a packed catalog record
+ */
+void r_packcatrec(const CatKeyRec *key, const CatDataRec *data,
+ byte *precord, unsigned int *len)
+{
+ r_packcatkey(key, precord, len);
+ r_packcatdata(data, HFS_RECDATA(precord), len);
+}
+
+/*
+ * NAME: record->packextrec()
+ * DESCRIPTION: create a packed extents record
+ */
+void r_packextrec(const ExtKeyRec *key, const ExtDataRec *data,
+ byte *precord, unsigned int *len)
+{
+ r_packextkey(key, precord, len);
+ r_packextdata(data, HFS_RECDATA(precord), len);
+}
+
+/*
+ * NAME: record->packdirent()
+ * DESCRIPTION: make changes to a catalog record
+ */
+void r_packdirent(CatDataRec *data, const hfsdirent *ent)
+{
+ switch (data->cdrType)
+ {
+ case cdrDirRec:
+ data->u.dir.dirCrDat = d_mtime(ent->crdate);
+ data->u.dir.dirMdDat = d_mtime(ent->mddate);
+ data->u.dir.dirBkDat = d_mtime(ent->bkdate);
+
+ data->u.dir.dirUsrInfo.frFlags = ent->fdflags;
+ data->u.dir.dirUsrInfo.frLocation.v = ent->fdlocation.v;
+ data->u.dir.dirUsrInfo.frLocation.h = ent->fdlocation.h;
+
+ data->u.dir.dirUsrInfo.frRect.top = ent->u.dir.rect.top;
+ data->u.dir.dirUsrInfo.frRect.left = ent->u.dir.rect.left;
+ data->u.dir.dirUsrInfo.frRect.bottom = ent->u.dir.rect.bottom;
+ data->u.dir.dirUsrInfo.frRect.right = ent->u.dir.rect.right;
+
+ break;
+
+ case cdrFilRec:
+ if (ent->flags & HFS_ISLOCKED)
+ data->u.fil.filFlags |= (1 << 0);
+ else
+ data->u.fil.filFlags &= ~(1 << 0);
+
+ data->u.fil.filCrDat = d_mtime(ent->crdate);
+ data->u.fil.filMdDat = d_mtime(ent->mddate);
+ data->u.fil.filBkDat = d_mtime(ent->bkdate);
+
+ data->u.fil.filUsrWds.fdFlags = ent->fdflags;
+ data->u.fil.filUsrWds.fdLocation.v = ent->fdlocation.v;
+ data->u.fil.filUsrWds.fdLocation.h = ent->fdlocation.h;
+
+ data->u.fil.filUsrWds.fdType =
+ d_getsl((const unsigned char *) ent->u.file.type);
+ data->u.fil.filUsrWds.fdCreator =
+ d_getsl((const unsigned char *) ent->u.file.creator);
+
+ break;
+ }
+}
+
+/*
+ * NAME: record->unpackdirent()
+ * DESCRIPTION: unpack catalog information into hfsdirent structure
+ */
+void r_unpackdirent(unsigned long parid, const char *name,
+ const CatDataRec *data, hfsdirent *ent)
+{
+ strcpy(ent->name, name);
+ ent->parid = parid;
+
+ switch (data->cdrType)
+ {
+ case cdrDirRec:
+ ent->flags = HFS_ISDIR;
+ ent->cnid = data->u.dir.dirDirID;
+
+ ent->crdate = d_ltime(data->u.dir.dirCrDat);
+ ent->mddate = d_ltime(data->u.dir.dirMdDat);
+ ent->bkdate = d_ltime(data->u.dir.dirBkDat);
+
+ ent->fdflags = data->u.dir.dirUsrInfo.frFlags;
+ ent->fdlocation.v = data->u.dir.dirUsrInfo.frLocation.v;
+ ent->fdlocation.h = data->u.dir.dirUsrInfo.frLocation.h;
+
+ ent->u.dir.valence = data->u.dir.dirVal;
+
+ ent->u.dir.rect.top = data->u.dir.dirUsrInfo.frRect.top;
+ ent->u.dir.rect.left = data->u.dir.dirUsrInfo.frRect.left;
+ ent->u.dir.rect.bottom = data->u.dir.dirUsrInfo.frRect.bottom;
+ ent->u.dir.rect.right = data->u.dir.dirUsrInfo.frRect.right;
+
+ break;
+
+ case cdrFilRec:
+ ent->flags = (data->u.fil.filFlags & (1 << 0)) ? HFS_ISLOCKED : 0;
+ ent->cnid = data->u.fil.filFlNum;
+
+ ent->crdate = d_ltime(data->u.fil.filCrDat);
+ ent->mddate = d_ltime(data->u.fil.filMdDat);
+ ent->bkdate = d_ltime(data->u.fil.filBkDat);
+
+ ent->fdflags = data->u.fil.filUsrWds.fdFlags;
+ ent->fdlocation.v = data->u.fil.filUsrWds.fdLocation.v;
+ ent->fdlocation.h = data->u.fil.filUsrWds.fdLocation.h;
+
+ ent->u.file.dsize = data->u.fil.filLgLen;
+ ent->u.file.rsize = data->u.fil.filRLgLen;
+
+ d_putsl((unsigned char *) ent->u.file.type,
+ data->u.fil.filUsrWds.fdType);
+ d_putsl((unsigned char *) ent->u.file.creator,
+ data->u.fil.filUsrWds.fdCreator);
+
+ ent->u.file.type[4] = ent->u.file.creator[4] = 0;
+
+ break;
+ }
+}
Code Review / kvmfornfv.git / blobdiff