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Sweden-Number/ole/storage.c

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/* Compound Storage
*
* Implemented using the documentation of the LAOLA project at
* <URL:http://wwwwbs.cs.tu-berlin.de/~schwartz/pmh/index.html>
* (Thanks to Martin Schwartz <schwartz@cs.tu-berlin.de>)
*
* Copyright 1998 Marcus Meissner
*/
#include <assert.h>
#include <time.h>
#include <string.h>
#include "windows.h"
#include "winerror.h"
#include "file.h"
#include "ole.h"
#include "ole2.h"
#include "compobj.h"
#include "interfaces.h"
#include "storage.h"
#include "heap.h"
#include "module.h"
#include "ldt.h"
#include "debug.h"
static const BYTE STORAGE_magic[8] ={0xd0,0xcf,0x11,0xe0,0xa1,0xb1,0x1a,0xe1};
static const BYTE STORAGE_notmagic[8]={0x0e,0x11,0xfc,0x0d,0xd0,0xcf,0x11,0xe0};
static const BYTE STORAGE_oldmagic[8]={0xd0,0xcf,0x11,0xe0,0x0e,0x11,0xfc,0x0d};
#define BIGSIZE 512
#define SMALLSIZE 64
#define SMALLBLOCKS_PER_BIGBLOCK (BIGSIZE/SMALLSIZE)
#define READ_HEADER assert(STORAGE_get_big_block(hf,-1,(LPBYTE)&sth));assert(!memcmp(STORAGE_magic,sth.magic,sizeof(STORAGE_magic)));
static IStorage16_VTable stvt16;
static IStorage16_VTable *segstvt16 = NULL;
static IStorage32_VTable stvt32;
static IStream16_VTable strvt16;
static IStream16_VTable *segstrvt16 = NULL;
static IStream32_VTable strvt32;
ULONG WINAPI IStorage16_AddRef(LPSTORAGE16 this);
static void _create_istorage16(LPSTORAGE16 *stg);
static void _create_istream16(LPSTREAM16 *str);
#define IMPLEMENTED 1
/******************************************************************************
* STORAGE_get_big_block [Internal]
*
* Reading OLE compound storage
*/
static BOOL32
STORAGE_get_big_block(HFILE32 hf,int n,BYTE *block) {
assert(n>=-1);
if (-1==_llseek32(hf,(n+1)*BIGSIZE,SEEK_SET)) {
WARN(ole," seek failed (%ld)\n",GetLastError());
return FALSE;
}
assert((n+1)*BIGSIZE==_llseek32(hf,0,SEEK_CUR));
if (BIGSIZE!=_lread32(hf,block,BIGSIZE)) {
WARN(ole,"(block size %d): read didn't read (%ld)\n",n,GetLastError());
assert(0);
return FALSE;
}
return TRUE;
}
static BOOL32
STORAGE_put_big_block(HFILE32 hf,int n,BYTE *block) {
assert(n>=-1);
if (-1==_llseek32(hf,(n+1)*BIGSIZE,SEEK_SET)) {
WARN(ole," seek failed (%ld)\n",GetLastError());
return FALSE;
}
assert((n+1)*BIGSIZE==_llseek32(hf,0,SEEK_CUR));
if (BIGSIZE!=_lwrite32(hf,block,BIGSIZE)) {
WARN(ole," write failed (%ld)\n",GetLastError());
return FALSE;
}
return TRUE;
}
static int
STORAGE_get_next_big_blocknr(HFILE32 hf,int blocknr) {
INT32 bbs[BIGSIZE/sizeof(INT32)];
struct storage_header sth;
READ_HEADER;
assert(blocknr>>7<sth.num_of_bbd_blocks);
if (sth.bbd_list[blocknr>>7]==0xffffffff)
return -5;
if (!STORAGE_get_big_block(hf,sth.bbd_list[blocknr>>7],(LPBYTE)bbs))
return -5;
assert(bbs[blocknr&0x7f]!=STORAGE_CHAINENTRY_FREE);
return bbs[blocknr&0x7f];
}
static int
STORAGE_get_nth_next_big_blocknr(HFILE32 hf,int blocknr,int nr) {
INT32 bbs[BIGSIZE/sizeof(INT32)];
int lastblock = -1;
struct storage_header sth;
READ_HEADER;
assert(blocknr>=0);
while (nr--) {
assert((blocknr>>7)<sth.num_of_bbd_blocks);
assert(sth.bbd_list[blocknr>>7]!=0xffffffff);
/* simple caching... */
if (lastblock!=sth.bbd_list[blocknr>>7]) {
assert(STORAGE_get_big_block(hf,sth.bbd_list[blocknr>>7],(LPBYTE)bbs));
lastblock = sth.bbd_list[blocknr>>7];
}
blocknr = bbs[blocknr&0x7f];
}
return blocknr;
}
/******************************************************************************
* STORAGE_get_root_pps_entry [Internal]
*/
static BOOL32
STORAGE_get_root_pps_entry(HFILE32 hf,struct storage_pps_entry *pstde) {
int blocknr,i;
BYTE block[BIGSIZE];
struct storage_pps_entry *stde=(struct storage_pps_entry*)block;
struct storage_header sth;
READ_HEADER;
blocknr = sth.root_startblock;
while (blocknr>=0) {
assert(STORAGE_get_big_block(hf,blocknr,block));
for (i=0;i<4;i++) {
if (!stde[i].pps_sizeofname)
continue;
if (stde[i].pps_type==5) {
*pstde=stde[i];
return TRUE;
}
}
blocknr=STORAGE_get_next_big_blocknr(hf,blocknr);
}
return FALSE;
}
static BOOL32
STORAGE_get_small_block(HFILE32 hf,int blocknr,BYTE *sblock) {
BYTE block[BIGSIZE];
int bigblocknr;
struct storage_pps_entry root;
assert(blocknr>=0);
assert(STORAGE_get_root_pps_entry(hf,&root));
bigblocknr = STORAGE_get_nth_next_big_blocknr(hf,root.pps_sb,blocknr/SMALLBLOCKS_PER_BIGBLOCK);
assert(bigblocknr>=0);
assert(STORAGE_get_big_block(hf,bigblocknr,block));
memcpy(sblock,((LPBYTE)block)+SMALLSIZE*(blocknr&(SMALLBLOCKS_PER_BIGBLOCK-1)),SMALLSIZE);
return TRUE;
}
static BOOL32
STORAGE_put_small_block(HFILE32 hf,int blocknr,BYTE *sblock) {
BYTE block[BIGSIZE];
int bigblocknr;
struct storage_pps_entry root;
assert(blocknr>=0);
assert(STORAGE_get_root_pps_entry(hf,&root));
bigblocknr = STORAGE_get_nth_next_big_blocknr(hf,root.pps_sb,blocknr/SMALLBLOCKS_PER_BIGBLOCK);
assert(bigblocknr>=0);
assert(STORAGE_get_big_block(hf,bigblocknr,block));
memcpy(((LPBYTE)block)+SMALLSIZE*(blocknr&(SMALLBLOCKS_PER_BIGBLOCK-1)),sblock,SMALLSIZE);
assert(STORAGE_put_big_block(hf,bigblocknr,block));
return TRUE;
}
static int
STORAGE_get_next_small_blocknr(HFILE32 hf,int blocknr) {
BYTE block[BIGSIZE];
LPINT32 sbd = (LPINT32)block;
int bigblocknr;
struct storage_header sth;
READ_HEADER;
assert(blocknr>=0);
bigblocknr = STORAGE_get_nth_next_big_blocknr(hf,sth.sbd_startblock,blocknr/128);
assert(bigblocknr>=0);
assert(STORAGE_get_big_block(hf,bigblocknr,block));
assert(sbd[blocknr & 127]!=STORAGE_CHAINENTRY_FREE);
return sbd[blocknr & (128-1)];
}
static int
STORAGE_get_nth_next_small_blocknr(HFILE32 hf,int blocknr,int nr) {
int lastblocknr;
BYTE block[BIGSIZE];
LPINT32 sbd = (LPINT32)block;
struct storage_header sth;
READ_HEADER;
lastblocknr=-1;
assert(blocknr>=0);
while ((nr--) && (blocknr>=0)) {
if (lastblocknr/128!=blocknr/128) {
int bigblocknr;
bigblocknr = STORAGE_get_nth_next_big_blocknr(hf,sth.sbd_startblock,blocknr/128);
assert(bigblocknr>=0);
assert(STORAGE_get_big_block(hf,bigblocknr,block));
lastblocknr = blocknr;
}
assert(lastblocknr>=0);
lastblocknr=blocknr;
blocknr=sbd[blocknr & (128-1)];
assert(blocknr!=STORAGE_CHAINENTRY_FREE);
}
return blocknr;
}
static int
STORAGE_get_pps_entry(HFILE32 hf,int n,struct storage_pps_entry *pstde) {
int blocknr;
BYTE block[BIGSIZE];
struct storage_pps_entry *stde = (struct storage_pps_entry*)(((LPBYTE)block)+128*(n&3));
struct storage_header sth;
READ_HEADER;
/* we have 4 pps entries per big block */
blocknr = STORAGE_get_nth_next_big_blocknr(hf,sth.root_startblock,n/4);
assert(blocknr>=0);
assert(STORAGE_get_big_block(hf,blocknr,block));
*pstde=*stde;
return 1;
}
/******************************************************************************
* STORAGE_put_pps_entry [Internal]
*/
static int
STORAGE_put_pps_entry(HFILE32 hf,int n,struct storage_pps_entry *pstde) {
int blocknr;
BYTE block[BIGSIZE];
struct storage_pps_entry *stde = (struct storage_pps_entry*)(((LPBYTE)block)+128*(n&3));
struct storage_header sth;
READ_HEADER;
/* we have 4 pps entries per big block */
blocknr = STORAGE_get_nth_next_big_blocknr(hf,sth.root_startblock,n/4);
assert(blocknr>=0);
assert(STORAGE_get_big_block(hf,blocknr,block));
*stde=*pstde;
assert(STORAGE_put_big_block(hf,blocknr,block));
return 1;
}
/******************************************************************************
* STORAGE_look_for_named_pps [Internal]
*/
static int
STORAGE_look_for_named_pps(HFILE32 hf,int n,LPOLESTR32 name) {
struct storage_pps_entry stde;
int ret;
if (n==-1)
return -1;
if (1!=STORAGE_get_pps_entry(hf,n,&stde))
return -1;
if (!lstrcmp32W(name,stde.pps_rawname))
return n;
if (stde.pps_prev != -1) {
ret=STORAGE_look_for_named_pps(hf,stde.pps_prev,name);
if (ret!=-1)
return ret;
}
if (stde.pps_next != -1) {
ret=STORAGE_look_for_named_pps(hf,stde.pps_next,name);
if (ret!=-1)
return ret;
}
return -1;
}
/******************************************************************************
* STORAGE_dump_pps_entry [Internal]
*
* FIXME
* Function is unused
*/
void
STORAGE_dump_pps_entry(struct storage_pps_entry *stde) {
char name[33],xguid[50];
WINE_StringFromCLSID(&(stde->pps_guid),xguid);
lstrcpyWtoA(name,stde->pps_rawname);
if (!stde->pps_sizeofname)
return;
DUMP("name: %s\n",name);
DUMP("type: %d\n",stde->pps_type);
DUMP("prev pps: %ld\n",stde->pps_prev);
DUMP("next pps: %ld\n",stde->pps_next);
DUMP("dir pps: %ld\n",stde->pps_dir);
DUMP("guid: %s\n",xguid);
if (stde->pps_type !=2) {
time_t t;
t = DOSFS_FileTimeToUnixTime(&(stde->pps_ft1),NULL);
DUMP("ts1: %s\n",ctime(&t));
t = DOSFS_FileTimeToUnixTime(&(stde->pps_ft2),NULL);
DUMP("ts2: %s\n",ctime(&t));
}
DUMP("startblock: %ld\n",stde->pps_sb);
DUMP("size: %ld\n",stde->pps_size);
}
static BOOL32
STORAGE_init_storage(HFILE32 hf) {
BYTE block[BIGSIZE];
LPDWORD bbs;
struct storage_header *sth;
struct storage_pps_entry *stde;
assert(-1!=_llseek32(hf,0,SEEK_SET));
/* block -1 is the storage header */
sth = (struct storage_header*)block;
memcpy(sth->magic,STORAGE_magic,8);
memset(sth->unknown1,0,sizeof(sth->unknown1));
memset(sth->unknown2,0,sizeof(sth->unknown2));
memset(sth->unknown3,0,sizeof(sth->unknown3));
sth->num_of_bbd_blocks = 1;
sth->root_startblock = 1;
sth->sbd_startblock = 0xffffffff;
memset(sth->bbd_list,0xff,sizeof(sth->bbd_list));
sth->bbd_list[0] = 0;
assert(BIGSIZE==_lwrite32(hf,block,BIGSIZE));
/* block 0 is the big block directory */
bbs=(LPDWORD)block;
memset(block,0xff,sizeof(block)); /* mark all blocks as free */
bbs[0]=STORAGE_CHAINENTRY_ENDOFCHAIN; /* for this block */
bbs[1]=STORAGE_CHAINENTRY_ENDOFCHAIN; /* for directory entry */
assert(BIGSIZE==_lwrite32(hf,block,BIGSIZE));
/* block 1 is the root directory entry */
memset(block,0x00,sizeof(block));
stde = (struct storage_pps_entry*)block;
lstrcpyAtoW(stde->pps_rawname,"RootEntry");
stde->pps_sizeofname = lstrlen32W(stde->pps_rawname)*2+2;
stde->pps_type = 5;
stde->pps_dir = -1;
stde->pps_next = -1;
stde->pps_prev = -1;
stde->pps_sb = 0xffffffff;
stde->pps_size = 0;
assert(BIGSIZE==_lwrite32(hf,block,BIGSIZE));
return TRUE;
}
/******************************************************************************
* STORAGE_set_big_chain [Internal]
*/
static BOOL32
STORAGE_set_big_chain(HFILE32 hf,int blocknr,INT32 type) {
BYTE block[BIGSIZE];
LPINT32 bbd = (LPINT32)block;
int nextblocknr,bigblocknr;
struct storage_header sth;
READ_HEADER;
assert(blocknr!=type);
while (blocknr>=0) {
bigblocknr = sth.bbd_list[blocknr/128];
assert(bigblocknr>=0);
assert(STORAGE_get_big_block(hf,bigblocknr,block));
nextblocknr = bbd[blocknr&(128-1)];
bbd[blocknr&(128-1)] = type;
if (type>=0)
return TRUE;
assert(STORAGE_put_big_block(hf,bigblocknr,block));
type = STORAGE_CHAINENTRY_FREE;
blocknr = nextblocknr;
}
return TRUE;
}
static BOOL32
STORAGE_set_small_chain(HFILE32 hf,int blocknr,INT32 type) {
BYTE block[BIGSIZE];
LPINT32 sbd = (LPINT32)block;
int lastblocknr,nextsmallblocknr,bigblocknr;
struct storage_header sth;
READ_HEADER;
assert(blocknr!=type);
lastblocknr=-129;bigblocknr=-2;
while (blocknr>=0) {
/* cache block ... */
if (lastblocknr/128!=blocknr/128) {
bigblocknr = STORAGE_get_nth_next_big_blocknr(hf,sth.sbd_startblock,blocknr/128);
assert(bigblocknr>=0);
assert(STORAGE_get_big_block(hf,bigblocknr,block));
}
lastblocknr = blocknr;
nextsmallblocknr = sbd[blocknr&(128-1)];
sbd[blocknr&(128-1)] = type;
assert(STORAGE_put_big_block(hf,bigblocknr,block));
if (type>=0)
return TRUE;
type = STORAGE_CHAINENTRY_FREE;
blocknr = nextsmallblocknr;
}
return TRUE;
}
/******************************************************************************
* STORAGE_get_free_big_blocknr [Internal]
*/
static int
STORAGE_get_free_big_blocknr(HFILE32 hf) {
BYTE block[BIGSIZE];
LPINT32 sbd = (LPINT32)block;
int lastbigblocknr,i,curblock,bigblocknr;
struct storage_header sth;
READ_HEADER;
curblock = 0;
lastbigblocknr = -1;
bigblocknr = sth.bbd_list[curblock];
while (curblock<sth.num_of_bbd_blocks) {
assert(bigblocknr>=0);
assert(STORAGE_get_big_block(hf,bigblocknr,block));
for (i=0;i<128;i++)
if (sbd[i]==STORAGE_CHAINENTRY_FREE) {
sbd[i] = STORAGE_CHAINENTRY_ENDOFCHAIN;
assert(STORAGE_put_big_block(hf,bigblocknr,block));
memset(block,0x42,sizeof(block));
assert(STORAGE_put_big_block(hf,i+curblock*128,block));
return i+curblock*128;
}
lastbigblocknr = bigblocknr;
bigblocknr = sth.bbd_list[++curblock];
}
bigblocknr = curblock*128;
/* since we have marked all blocks from 0 up to curblock*128-1
* the next free one is curblock*128, where we happily put our
* next large block depot.
*/
memset(block,0xff,sizeof(block));
/* mark the block allocated and returned by this function */
sbd[1] = STORAGE_CHAINENTRY_ENDOFCHAIN;
assert(STORAGE_put_big_block(hf,bigblocknr,block));
/* if we had a bbd block already (mostlikely) we need
* to link the new one into the chain
*/
if (lastbigblocknr!=-1)
assert(STORAGE_set_big_chain(hf,lastbigblocknr,bigblocknr));
sth.bbd_list[curblock]=bigblocknr;
sth.num_of_bbd_blocks++;
assert(sth.num_of_bbd_blocks==curblock+1);
assert(STORAGE_put_big_block(hf,-1,(LPBYTE)&sth));
/* Set the end of the chain for the bigblockdepots */
assert(STORAGE_set_big_chain(hf,bigblocknr,STORAGE_CHAINENTRY_ENDOFCHAIN));
/* add 1, for the first entry is used for the additional big block
* depot. (means we already used bigblocknr) */
memset(block,0x42,sizeof(block));
/* allocate this block (filled with 0x42) */
assert(STORAGE_put_big_block(hf,bigblocknr+1,block));
return bigblocknr+1;
}
/******************************************************************************
* STORAGE_get_free_small_blocknr [Internal]
*/
static int
STORAGE_get_free_small_blocknr(HFILE32 hf) {
BYTE block[BIGSIZE];
LPINT32 sbd = (LPINT32)block;
int lastbigblocknr,newblocknr,i,curblock,bigblocknr;
struct storage_pps_entry root;
struct storage_header sth;
READ_HEADER;
bigblocknr = sth.sbd_startblock;
curblock = 0;
lastbigblocknr = -1;
newblocknr = -1;
while (bigblocknr>=0) {
if (!STORAGE_get_big_block(hf,bigblocknr,block))
return -1;
for (i=0;i<128;i++)
if (sbd[i]==STORAGE_CHAINENTRY_FREE) {
sbd[i]=STORAGE_CHAINENTRY_ENDOFCHAIN;
newblocknr = i+curblock*128;
break;
}
if (i!=128)
break;
lastbigblocknr = bigblocknr;
bigblocknr = STORAGE_get_next_big_blocknr(hf,bigblocknr);
curblock++;
}
if (newblocknr==-1) {
bigblocknr = STORAGE_get_free_big_blocknr(hf);
if (bigblocknr<0)
return -1;
READ_HEADER;
memset(block,0xff,sizeof(block));
sbd[0]=STORAGE_CHAINENTRY_ENDOFCHAIN;
if (!STORAGE_put_big_block(hf,bigblocknr,block))
return -1;
if (lastbigblocknr==-1) {
sth.sbd_startblock = bigblocknr;
if (!STORAGE_put_big_block(hf,-1,(LPBYTE)&sth)) /* need to write it */
return -1;
} else {
if (!STORAGE_set_big_chain(hf,lastbigblocknr,bigblocknr))
return -1;
}
if (!STORAGE_set_big_chain(hf,bigblocknr,STORAGE_CHAINENTRY_ENDOFCHAIN))
return -1;
newblocknr = curblock*128;
}
/* allocate enough big blocks for storing the allocated small block */
if (!STORAGE_get_root_pps_entry(hf,&root))
return -1;
if (root.pps_sb==-1)
lastbigblocknr = -1;
else
lastbigblocknr = STORAGE_get_nth_next_big_blocknr(hf,root.pps_sb,(root.pps_size-1)/BIGSIZE);
while (root.pps_size < (newblocknr*SMALLSIZE+SMALLSIZE-1)) {
/* we need to allocate more stuff */
bigblocknr = STORAGE_get_free_big_blocknr(hf);
if (bigblocknr<0)
return -1;
READ_HEADER;
if (root.pps_sb==-1) {
root.pps_sb = bigblocknr;
root.pps_size += BIGSIZE;
} else {
if (!STORAGE_set_big_chain(hf,lastbigblocknr,bigblocknr))
return -1;
root.pps_size += BIGSIZE;
}
lastbigblocknr = bigblocknr;
}
if (!STORAGE_set_big_chain(hf,lastbigblocknr,STORAGE_CHAINENTRY_ENDOFCHAIN))
return -1;
if (!STORAGE_put_pps_entry(hf,0,&root))
return -1;
return newblocknr;
}
/******************************************************************************
* STORAGE_get_free_pps_entry [Internal]
*/
static int
STORAGE_get_free_pps_entry(HFILE32 hf) {
int blocknr,i,curblock,lastblocknr;
BYTE block[BIGSIZE];
struct storage_pps_entry *stde = (struct storage_pps_entry*)block;
struct storage_header sth;
READ_HEADER;
blocknr = sth.root_startblock;
assert(blocknr>=0);
curblock=0;
while (blocknr>=0) {
if (!STORAGE_get_big_block(hf,blocknr,block))
return -1;
for (i=0;i<4;i++)
if (stde[i].pps_sizeofname==0) /* free */
return curblock*4+i;
lastblocknr = blocknr;
blocknr = STORAGE_get_next_big_blocknr(hf,blocknr);
curblock++;
}
assert(blocknr==STORAGE_CHAINENTRY_ENDOFCHAIN);
blocknr = STORAGE_get_free_big_blocknr(hf);
/* sth invalidated */
if (blocknr<0)
return -1;
if (!STORAGE_set_big_chain(hf,lastblocknr,blocknr))
return -1;
if (!STORAGE_set_big_chain(hf,blocknr,STORAGE_CHAINENTRY_ENDOFCHAIN))
return -1;
memset(block,0,sizeof(block));
STORAGE_put_big_block(hf,blocknr,block);
return curblock*4;
}
/******************************************************************************
* IStream16_QueryInterface [STORAGE.518]
*/
HRESULT WINAPI IStream16_QueryInterface(
LPSTREAM16 this,REFIID refiid,LPVOID *obj
) {
char xrefiid[50];
WINE_StringFromCLSID((LPCLSID)refiid,xrefiid);
TRACE(relay,"(%p)->(%s,%p)\n",this,xrefiid,obj);
if (!memcmp(&IID_IUnknown,refiid,sizeof(IID_IUnknown))) {
*obj = this;
return 0;
}
return OLE_E_ENUM_NOMORE;
}
ULONG WINAPI IStream16_AddRef(LPSTREAM16 this) {
return ++(this->ref);
}
ULONG WINAPI IStream16_Release(LPSTREAM16 this) {
FlushFileBuffers(this->hf);
this->ref--;
if (!this->ref) {
CloseHandle(this->hf);
SEGPTR_FREE(this);
return 0;
}
return this->ref;
}
/******************************************************************************
* IStream16_Seek [STORAGE.523]
*
* FIXME
* Does not handle 64 bits
*/
HRESULT WINAPI IStream16_Seek(
LPSTREAM16 this,LARGE_INTEGER offset,DWORD whence,ULARGE_INTEGER *newpos
) {
TRACE(relay,"(%p)->([%ld.%ld],%ld,%p)\n",this,offset.HighPart,offset.LowPart,whence,newpos);
switch (whence) {
/* unix SEEK_xx should be the same as win95 ones */
case SEEK_SET:
/* offset must be ==0 (<0 is invalid, and >0 cannot be handled
* right now.
*/
assert(offset.HighPart==0);
this->offset.HighPart = offset.HighPart;
this->offset.LowPart = offset.LowPart;
break;
case SEEK_CUR:
if (offset.HighPart < 0) {
/* FIXME: is this negation correct ? */
offset.HighPart = -offset.HighPart;
offset.LowPart = (0xffffffff ^ offset.LowPart)+1;
assert(offset.HighPart==0);
assert(this->offset.LowPart >= offset.LowPart);
this->offset.LowPart -= offset.LowPart;
} else {
assert(offset.HighPart==0);
this->offset.LowPart+= offset.LowPart;
}
break;
case SEEK_END:
assert(offset.HighPart==0);
this->offset.LowPart = this->stde.pps_size-offset.LowPart;
break;
}
if (this->offset.LowPart>this->stde.pps_size)
this->offset.LowPart=this->stde.pps_size;
if (newpos) *newpos = this->offset;
return OLE_OK;
}
/******************************************************************************
* IStream16_Read [STORAGE.521]
*/
HRESULT WINAPI IStream16_Read(
LPSTREAM16 this,void *pv,ULONG cb,ULONG *pcbRead
) {
BYTE block[BIGSIZE];
ULONG *bytesread=pcbRead,xxread;
int blocknr;
TRACE(relay,"(%p)->(%p,%ld,%p)\n",this,pv,cb,pcbRead);
if (!pcbRead) bytesread=&xxread;
*bytesread = 0;
if (cb>this->stde.pps_size-this->offset.LowPart)
cb=this->stde.pps_size-this->offset.LowPart;
if (this->stde.pps_size < 0x1000) {
/* use small block reader */
blocknr = STORAGE_get_nth_next_small_blocknr(this->hf,this->stde.pps_sb,this->offset.LowPart/SMALLSIZE);
while (cb) {
int cc;
if (!STORAGE_get_small_block(this->hf,blocknr,block)) {
WARN(ole,"small block read failed!!!\n");
return E_FAIL;
}
cc = cb;
if (cc>SMALLSIZE-(this->offset.LowPart&(SMALLSIZE-1)))
cc=SMALLSIZE-(this->offset.LowPart&(SMALLSIZE-1));
memcpy((LPBYTE)pv,block+(this->offset.LowPart&(SMALLSIZE-1)),cc);
this->offset.LowPart+=cc;
(LPBYTE)pv+=cc;
*bytesread+=cc;
cb-=cc;
blocknr = STORAGE_get_next_small_blocknr(this->hf,blocknr);
}
} else {
/* use big block reader */
blocknr = STORAGE_get_nth_next_big_blocknr(this->hf,this->stde.pps_sb,this->offset.LowPart/BIGSIZE);
while (cb) {
int cc;
if (!STORAGE_get_big_block(this->hf,blocknr,block)) {
WARN(ole,"big block read failed!!!\n");
return E_FAIL;
}
cc = cb;
if (cc>BIGSIZE-(this->offset.LowPart&(BIGSIZE-1)))
cc=BIGSIZE-(this->offset.LowPart&(BIGSIZE-1));
memcpy((LPBYTE)pv,block+(this->offset.LowPart&(BIGSIZE-1)),cc);
this->offset.LowPart+=cc;
(LPBYTE)pv+=cc;
*bytesread+=cc;
cb-=cc;
blocknr=STORAGE_get_next_big_blocknr(this->hf,blocknr);
}
}
return OLE_OK;
}
/******************************************************************************
* IStream16_Write [STORAGE.522]
*/
HRESULT WINAPI IStream16_Write(
LPSTREAM16 this,const void *pv,ULONG cb,ULONG *pcbWrite
) {
BYTE block[BIGSIZE];
ULONG *byteswritten=pcbWrite,xxwritten;
int oldsize,newsize,i,curoffset=0,lastblocknr,blocknr,cc;
HFILE32 hf = this->hf;
if (!pcbWrite) byteswritten=&xxwritten;
*byteswritten = 0;
TRACE(relay,"(%p)->(%p,%ld,%p)\n",this,pv,cb,pcbWrite);
/* do we need to junk some blocks? */
newsize = this->offset.LowPart+cb;
oldsize = this->stde.pps_size;
if (newsize < oldsize) {
if (oldsize < 0x1000) {
/* only small blocks */
blocknr=STORAGE_get_nth_next_small_blocknr(hf,this->stde.pps_sb,newsize/SMALLSIZE);
assert(blocknr>=0);
/* will set the rest of the chain to 'free' */
if (!STORAGE_set_small_chain(hf,blocknr,STORAGE_CHAINENTRY_ENDOFCHAIN))
return E_FAIL;
} else {
if (newsize >= 0x1000) {
blocknr=STORAGE_get_nth_next_big_blocknr(hf,this->stde.pps_sb,newsize/BIGSIZE);
assert(blocknr>=0);
/* will set the rest of the chain to 'free' */
if (!STORAGE_set_big_chain(hf,blocknr,STORAGE_CHAINENTRY_ENDOFCHAIN))
return E_FAIL;
} else {
/* Migrate large blocks to small blocks
* (we just migrate newsize bytes)
*/
LPBYTE curdata,data = HeapAlloc(GetProcessHeap(),0,newsize+BIGSIZE);
cc = newsize;
blocknr = this->stde.pps_sb;
curdata = data;
while (cc>0) {
if (!STORAGE_get_big_block(hf,blocknr,curdata)) {
HeapFree(GetProcessHeap(),0,data);
return E_FAIL;
}
curdata += BIGSIZE;
cc -= BIGSIZE;
blocknr = STORAGE_get_next_big_blocknr(hf,blocknr);
}
/* frees complete chain for this stream */
if (!STORAGE_set_big_chain(hf,this->stde.pps_sb,STORAGE_CHAINENTRY_FREE))
return E_FAIL;
curdata = data;
blocknr = this->stde.pps_sb = STORAGE_get_free_small_blocknr(hf);
if (blocknr<0)
return E_FAIL;
cc = newsize;
while (cc>0) {
if (!STORAGE_put_small_block(hf,blocknr,curdata))
return E_FAIL;
cc -= SMALLSIZE;
if (cc<=0) {
if (!STORAGE_set_small_chain(hf,blocknr,STORAGE_CHAINENTRY_ENDOFCHAIN))
return E_FAIL;
break;
} else {
int newblocknr = STORAGE_get_free_small_blocknr(hf);
if (newblocknr<0)
return E_FAIL;
if (!STORAGE_set_small_chain(hf,blocknr,newblocknr))
return E_FAIL;
blocknr = newblocknr;
}
curdata += SMALLSIZE;
}
HeapFree(GetProcessHeap(),0,data);
}
}
this->stde.pps_size = newsize;
}
if (newsize > oldsize) {
if (oldsize >= 0x1000) {
/* should return the block right before the 'endofchain' */
blocknr = STORAGE_get_nth_next_big_blocknr(hf,this->stde.pps_sb,this->stde.pps_size/BIGSIZE);
assert(blocknr>=0);
lastblocknr = blocknr;
for (i=oldsize/BIGSIZE;i<newsize/BIGSIZE;i++) {
blocknr = STORAGE_get_free_big_blocknr(hf);
if (blocknr<0)
return E_FAIL;
if (!STORAGE_set_big_chain(hf,lastblocknr,blocknr))
return E_FAIL;
lastblocknr = blocknr;
}
if (!STORAGE_set_big_chain(hf,blocknr,STORAGE_CHAINENTRY_ENDOFCHAIN))
return E_FAIL;
} else {
if (newsize < 0x1000) {
/* find startblock */
if (!oldsize)
this->stde.pps_sb = blocknr = STORAGE_get_free_small_blocknr(hf);
else
blocknr = STORAGE_get_nth_next_small_blocknr(hf,this->stde.pps_sb,this->stde.pps_size/SMALLSIZE);
if (blocknr<0)
return E_FAIL;
/* allocate required new small blocks */
lastblocknr = blocknr;
for (i=oldsize/SMALLSIZE;i<newsize/SMALLSIZE;i++) {
blocknr = STORAGE_get_free_small_blocknr(hf);
if (blocknr<0)
return E_FAIL;
if (!STORAGE_set_small_chain(hf,lastblocknr,blocknr))
return E_FAIL;
lastblocknr = blocknr;
}
/* and terminate the chain */
if (!STORAGE_set_small_chain(hf,lastblocknr,STORAGE_CHAINENTRY_ENDOFCHAIN))
return E_FAIL;
} else {
if (!oldsize) {
/* no single block allocated yet */
blocknr=STORAGE_get_free_big_blocknr(hf);
if (blocknr<0)
return E_FAIL;
this->stde.pps_sb = blocknr;
} else {
/* Migrate small blocks to big blocks */
LPBYTE curdata,data = HeapAlloc(GetProcessHeap(),0,oldsize+BIGSIZE);
cc = oldsize;
blocknr = this->stde.pps_sb;
curdata = data;
/* slurp in */
while (cc>0) {
if (!STORAGE_get_small_block(hf,blocknr,curdata)) {
HeapFree(GetProcessHeap(),0,data);
return E_FAIL;
}
curdata += SMALLSIZE;
cc -= SMALLSIZE;
blocknr = STORAGE_get_next_small_blocknr(hf,blocknr);
}
/* free small block chain */
if (!STORAGE_set_small_chain(hf,this->stde.pps_sb,STORAGE_CHAINENTRY_FREE))
return E_FAIL;
curdata = data;
blocknr = this->stde.pps_sb = STORAGE_get_free_big_blocknr(hf);
if (blocknr<0)
return E_FAIL;
/* put the data into the big blocks */
cc = this->stde.pps_size;
while (cc>0) {
if (!STORAGE_put_big_block(hf,blocknr,curdata))
return E_FAIL;
cc -= BIGSIZE;
if (cc<=0) {
if (!STORAGE_set_big_chain(hf,blocknr,STORAGE_CHAINENTRY_ENDOFCHAIN))
return E_FAIL;
break;
} else {
int newblocknr = STORAGE_get_free_big_blocknr(hf);
if (newblocknr<0)
return E_FAIL;
if (!STORAGE_set_big_chain(hf,blocknr,newblocknr))
return E_FAIL;
blocknr = newblocknr;
}
curdata += BIGSIZE;
}
HeapFree(GetProcessHeap(),0,data);
}
/* generate big blocks to fit the new data */
lastblocknr = blocknr;
for (i=oldsize/BIGSIZE;i<newsize/BIGSIZE;i++) {
blocknr = STORAGE_get_free_big_blocknr(hf);
if (blocknr<0)
return E_FAIL;
if (!STORAGE_set_big_chain(hf,lastblocknr,blocknr))
return E_FAIL;
lastblocknr = blocknr;
}
/* terminate chain */
if (!STORAGE_set_big_chain(hf,lastblocknr,STORAGE_CHAINENTRY_ENDOFCHAIN))
return E_FAIL;
}
}
this->stde.pps_size = newsize;
}
/* There are just some cases where we didn't modify it, we write it out
* everytime
*/
if (!STORAGE_put_pps_entry(hf,this->ppsent,&(this->stde)))
return E_FAIL;
/* finally the write pass */
if (this->stde.pps_size < 0x1000) {
blocknr = STORAGE_get_nth_next_small_blocknr(hf,this->stde.pps_sb,this->offset.LowPart/SMALLSIZE);
assert(blocknr>=0);
while (cb>0) {
/* we ensured that it is allocated above */
assert(blocknr>=0);
/* Read old block everytime, since we can have
* overlapping data at START and END of the write
*/
if (!STORAGE_get_small_block(hf,blocknr,block))
return E_FAIL;
cc = SMALLSIZE-(this->offset.LowPart&(SMALLSIZE-1));
if (cc>cb)
cc=cb;
memcpy( ((LPBYTE)block)+(this->offset.LowPart&(SMALLSIZE-1)),
(LPBYTE)(pv+curoffset),
cc
);
if (!STORAGE_put_small_block(hf,blocknr,block))
return E_FAIL;
cb -= cc;
curoffset += cc;
(LPBYTE)pv += cc;
this->offset.LowPart += cc;
*byteswritten += cc;
blocknr = STORAGE_get_next_small_blocknr(hf,blocknr);
}
} else {
blocknr = STORAGE_get_nth_next_big_blocknr(hf,this->stde.pps_sb,this->offset.LowPart/BIGSIZE);
assert(blocknr>=0);
while (cb>0) {
/* we ensured that it is allocated above, so it better is */
assert(blocknr>=0);
/* read old block everytime, since we can have
* overlapping data at START and END of the write
*/
if (!STORAGE_get_big_block(hf,blocknr,block))
return E_FAIL;
cc = BIGSIZE-(this->offset.LowPart&(BIGSIZE-1));
if (cc>cb)
cc=cb;
memcpy( ((LPBYTE)block)+(this->offset.LowPart&(BIGSIZE-1)),
(LPBYTE)(pv+curoffset),
cc
);
if (!STORAGE_put_big_block(hf,blocknr,block))
return E_FAIL;
cb -= cc;
curoffset += cc;
(LPBYTE)pv += cc;
this->offset.LowPart += cc;
*byteswritten += cc;
blocknr = STORAGE_get_next_big_blocknr(hf,blocknr);
}
}
return OLE_OK;
}
/******************************************************************************
* _create_istream16 [Internal]
*/
static void _create_istream16(LPSTREAM16 *str) {
LPSTREAM16 lpst;
if (!strvt16.fnQueryInterface) {
HMODULE16 wp = GetModuleHandle16("STORAGE");
if (wp>=32) {
#define VTENT(x) strvt16.fn##x = (void*)WIN32_GetProcAddress16(wp,"IStream16_"#x);
VTENT(QueryInterface)
VTENT(AddRef)
VTENT(Release)
VTENT(Read)
VTENT(Write)
VTENT(Seek)
VTENT(SetSize)
VTENT(CopyTo)
VTENT(Commit)
VTENT(Revert)
VTENT(LockRegion)
VTENT(UnlockRegion)
VTENT(Stat)
VTENT(Clone)
#undef VTENT
segstrvt16 = SEGPTR_NEW(IStream16_VTable);
memcpy(segstrvt16,&strvt16,sizeof(strvt16));
segstrvt16 = (LPSTREAM16_VTABLE)SEGPTR_GET(segstrvt16);
} else {
#define VTENT(x) strvt16.fn##x = IStream16_##x;
VTENT(QueryInterface)
VTENT(AddRef)
VTENT(Release)
VTENT(Read)
VTENT(Write)
VTENT(Seek)
/*
VTENT(CopyTo)
VTENT(Commit)
VTENT(SetSize)
VTENT(Revert)
VTENT(LockRegion)
VTENT(UnlockRegion)
VTENT(Stat)
VTENT(Clone)
*/
#undef VTENT
segstrvt16 = &strvt16;
}
}
lpst = SEGPTR_NEW(IStream16);
lpst->lpvtbl = segstrvt16;
lpst->ref = 1;
lpst->thisptr = SEGPTR_GET(lpst);
*str = (void*)lpst->thisptr;
}
/*****************************************************************************
* IStream32_QueryInterface [???]
*/
HRESULT WINAPI IStream32_QueryInterface(
LPSTREAM32 this,REFIID refiid,LPVOID *obj
) {
char xrefiid[50];
WINE_StringFromCLSID((LPCLSID)refiid,xrefiid);
TRACE(relay,"(%p)->(%s,%p)\n",this,xrefiid,obj);
if (!memcmp(&IID_IUnknown,refiid,sizeof(IID_IUnknown))) {
*obj = this;
return 0;
}
return OLE_E_ENUM_NOMORE;
}
ULONG WINAPI IStream32_AddRef(LPSTREAM32 this) {
return ++(this->ref);
}
ULONG WINAPI IStream32_Release(LPSTREAM32 this) {
FlushFileBuffers(this->hf);
this->ref--;
if (!this->ref) {
CloseHandle(this->hf);
SEGPTR_FREE(this);
return 0;
}
return this->ref;
}
static IStream32_VTable strvt32 = {
IStream32_QueryInterface,
IStream32_AddRef,
IStream32_Release,
(void*)4,
(void*)5,
(void*)6,
(void*)7,
(void*)8,
(void*)9,
(void*)10,
(void*)11,
};
/******************************************************************************
* IStorage16_QueryInterface [STORAGE.500]
*/
HRESULT WINAPI IStorage16_QueryInterface(
LPSTORAGE16 this,REFIID refiid,LPVOID *obj
) {
char xrefiid[50];
WINE_StringFromCLSID((LPCLSID)refiid,xrefiid);
TRACE(relay,"(%p)->(%s,%p)\n",this,xrefiid,obj);
if (!memcmp(&IID_IUnknown,refiid,sizeof(IID_IUnknown))) {
*obj = this;
return 0;
}
return OLE_E_ENUM_NOMORE;
}
ULONG WINAPI IStorage16_AddRef(LPSTORAGE16 this) {
return ++(this->ref);
}
ULONG WINAPI IStorage16_Release(LPSTORAGE16 this) {
this->ref--;
if (this->ref)
return this->ref;
SEGPTR_FREE(this);
return 0;
}
HRESULT WINAPI IStorage16_Stat(
LPSTORAGE16 this,STATSTG *pstatstg, DWORD grfStatFlag
) {
TRACE(ole,"(%p)->(%p,0x%08lx)\n",
this,pstatstg,grfStatFlag
);
pstatstg->pwcsName=(LPOLESTR16)SEGPTR_GET(SEGPTR_STRDUP_WtoA(this->stde.pps_rawname));
pstatstg->type = this->stde.pps_type;
pstatstg->cbSize.LowPart = this->stde.pps_size;
pstatstg->mtime = this->stde.pps_ft1; /* FIXME */ /* why? */
pstatstg->atime = this->stde.pps_ft2; /* FIXME */
pstatstg->ctime = this->stde.pps_ft2; /* FIXME */
pstatstg->grfMode = 0; /* FIXME */
pstatstg->grfLocksSupported = 0; /* FIXME */
pstatstg->clsid = this->stde.pps_guid;
pstatstg->grfStateBits = 0; /* FIXME */
pstatstg->reserved = 0;
return OLE_OK;
}
/******************************************************************************
* IStorage16_Commit [STORAGE.509]
*/
HRESULT WINAPI IStorage16_Commit(
LPSTORAGE16 this,DWORD commitflags
) {
FIXME(ole,"(%p)->(0x%08lx),STUB!\n",
this,commitflags
);
return OLE_OK;
}
HRESULT WINAPI IStorage16_CopyTo(LPSTORAGE16 this,DWORD ciidExclude,const IID *rgiidExclude,SNB16 SNB16Exclude,IStorage16 *pstgDest) {
char xguid[50];
if (rgiidExclude)
WINE_StringFromCLSID(rgiidExclude,xguid);
else
strcpy(xguid,"<no guid>");
FIXME(ole,"IStorage16(%p)->(0x%08lx,%s,%p,%p),stub!\n",
this,ciidExclude,xguid,SNB16Exclude,pstgDest
);
return OLE_OK;
}
HRESULT WINAPI IStorage16_CreateStorage(
LPSTORAGE16 this,LPCOLESTR16 pwcsName,DWORD grfMode,DWORD dwStgFormat,DWORD reserved2, IStorage16 **ppstg
) {
LPSTORAGE16 lpstg;
int ppsent,x;
struct storage_pps_entry stde;
struct storage_header sth;
HFILE32 hf=this->hf;
READ_HEADER;
TRACE(ole,"(%p)->(%s,0x%08lx,0x%08lx,0x%08lx,%p)\n",
this,pwcsName,grfMode,dwStgFormat,reserved2,ppstg
);
if (grfMode & STGM_TRANSACTED)
FIXME(ole,"We do not support transacted Compound Storage. Using direct mode.\n");
_create_istorage16(ppstg);
lpstg = (LPSTORAGE16)PTR_SEG_TO_LIN(*ppstg);
lpstg->hf = this->hf;
ppsent=STORAGE_get_free_pps_entry(lpstg->hf);
if (ppsent<0)
return E_FAIL;
stde=this->stde;
if (stde.pps_dir==-1) {
stde.pps_dir = ppsent;
x = this->ppsent;
} else {
FIXME(ole," use prev chain too ?\n");
x=stde.pps_dir;
if (1!=STORAGE_get_pps_entry(lpstg->hf,x,&stde))
return E_FAIL;
while (stde.pps_next!=-1) {
x=stde.pps_next;
if (1!=STORAGE_get_pps_entry(lpstg->hf,x,&stde))
return E_FAIL;
}
stde.pps_next = ppsent;
}
assert(STORAGE_put_pps_entry(lpstg->hf,x,&stde));
assert(1==STORAGE_get_pps_entry(lpstg->hf,ppsent,&(lpstg->stde)));
lstrcpyAtoW(lpstg->stde.pps_rawname,pwcsName);
lpstg->stde.pps_sizeofname = lstrlen32A(pwcsName)*2+2;
lpstg->stde.pps_next = -1;
lpstg->stde.pps_prev = -1;
lpstg->stde.pps_dir = -1;
lpstg->stde.pps_sb = -1;
lpstg->stde.pps_size = 0;
lpstg->stde.pps_type = 1;
lpstg->ppsent = ppsent;
/* FIXME: timestamps? */
if (!STORAGE_put_pps_entry(lpstg->hf,ppsent,&(lpstg->stde)))
return E_FAIL;
return OLE_OK;
}
/******************************************************************************
* IStorage16_CreateStream [STORAGE.503]
*/
HRESULT WINAPI IStorage16_CreateStream(
LPSTORAGE16 this,LPCOLESTR16 pwcsName,DWORD grfMode,DWORD reserved1,DWORD reserved2, IStream16 **ppstm
) {
LPSTREAM16 lpstr;
int ppsent,x;
struct storage_pps_entry stde;
TRACE(ole,"(%p)->(%s,0x%08lx,0x%08lx,0x%08lx,%p)\n",
this,pwcsName,grfMode,reserved1,reserved2,ppstm
);
if (grfMode & STGM_TRANSACTED)
FIXME(ole,"We do not support transacted Compound Storage. Using direct mode.\n");
_create_istream16(ppstm);
lpstr = (LPSTREAM16)PTR_SEG_TO_LIN(*ppstm);
lpstr->hf = FILE_Dup(this->hf);
lpstr->offset.LowPart = 0;
lpstr->offset.HighPart = 0;
ppsent=STORAGE_get_free_pps_entry(lpstr->hf);
if (ppsent<0)
return E_FAIL;
stde=this->stde;
if (stde.pps_next==-1)
x=this->ppsent;
else
while (stde.pps_next!=-1) {
x=stde.pps_next;
if (1!=STORAGE_get_pps_entry(lpstr->hf,x,&stde))
return E_FAIL;
}
stde.pps_next = ppsent;
assert(STORAGE_put_pps_entry(lpstr->hf,x,&stde));
assert(1==STORAGE_get_pps_entry(lpstr->hf,ppsent,&(lpstr->stde)));
lstrcpyAtoW(lpstr->stde.pps_rawname,pwcsName);
lpstr->stde.pps_sizeofname = lstrlen32A(pwcsName)*2+2;
lpstr->stde.pps_next = -1;
lpstr->stde.pps_prev = -1;
lpstr->stde.pps_dir = -1;
lpstr->stde.pps_sb = -1;
lpstr->stde.pps_size = 0;
lpstr->stde.pps_type = 2;
lpstr->ppsent = ppsent;
/* FIXME: timestamps? */
if (!STORAGE_put_pps_entry(lpstr->hf,ppsent,&(lpstr->stde)))
return E_FAIL;
return OLE_OK;
}
/******************************************************************************
* IStorage16_OpenStorage [STORAGE.506]
*/
HRESULT WINAPI IStorage16_OpenStorage(
LPSTORAGE16 this,LPCOLESTR16 pwcsName, IStorage16 *pstgPrio, DWORD grfMode, SNB16 snbExclude, DWORD reserved, IStorage16 **ppstg
) {
LPSTREAM16 lpstg;
WCHAR name[33];
int newpps;
TRACE(relay,"(%p)->(%s,%p,0x%08lx,%p,0x%08lx,%p)\n",
this,pwcsName,pstgPrio,grfMode,snbExclude,reserved,ppstg
);
if (grfMode & STGM_TRANSACTED)
FIXME(ole,"We do not support transacted Compound Storage. Using direct mode.\n");
_create_istorage16(ppstg);
lpstg = (LPSTREAM16)PTR_SEG_TO_LIN(*ppstg);
lpstg->hf = FILE_Dup(this->hf);
lstrcpyAtoW(name,pwcsName);
newpps = STORAGE_look_for_named_pps(lpstg->hf,this->stde.pps_dir,name);
if (newpps==-1) {
IStream16_Release(lpstg);
return E_FAIL;
}
if (1!=STORAGE_get_pps_entry(lpstg->hf,newpps,&(lpstg->stde))) {
IStream16_Release(lpstg);
return E_FAIL;
}
lpstg->ppsent = newpps;
return OLE_OK;
}
HRESULT WINAPI IStorage16_OpenStream(
LPSTORAGE16 this,LPCOLESTR16 pwcsName, void *reserved1, DWORD grfMode, DWORD reserved2, IStream16 **ppstm
) {
LPSTREAM16 lpstr;
WCHAR name[33];
int newpps;
TRACE(relay,"(%p)->(%s,%p,0x%08lx,0x%08lx,%p)\n",
this,pwcsName,reserved1,grfMode,reserved2,ppstm
);
if (grfMode & STGM_TRANSACTED)
FIXME(ole,"We do not support transacted Compound Storage. Using direct mode.\n");
_create_istream16(ppstm);
lpstr = (LPSTREAM16)PTR_SEG_TO_LIN(*ppstm);
lpstr->hf = FILE_Dup(this->hf);
lstrcpyAtoW(name,pwcsName);
newpps = STORAGE_look_for_named_pps(lpstr->hf,this->stde.pps_dir,name);
if (newpps==-1) {
IStream16_Release(lpstr);
return E_FAIL;
}
if (1!=STORAGE_get_pps_entry(lpstr->hf,newpps,&(lpstr->stde))) {
IStream16_Release(lpstr);
return E_FAIL;
}
lpstr->offset.LowPart = 0;
lpstr->offset.HighPart = 0;
lpstr->ppsent = newpps;
return OLE_OK;
}
static void _create_istorage16(LPSTORAGE16 *stg) {
LPSTORAGE16 lpst;
if (!stvt16.fnQueryInterface) {
HMODULE16 wp = GetModuleHandle16("STORAGE");
if (wp>=32) {
#define VTENT(x) stvt16.fn##x = (void*)WIN32_GetProcAddress16(wp,"IStorage16_"#x);
VTENT(QueryInterface)
VTENT(AddRef)
VTENT(Release)
VTENT(CreateStream)
VTENT(OpenStream)
VTENT(CreateStorage)
VTENT(OpenStorage)
VTENT(CopyTo)
VTENT(MoveElementTo)
VTENT(Commit)
VTENT(Revert)
VTENT(EnumElements)
VTENT(DestroyElement)
VTENT(RenameElement)
VTENT(SetElementTimes)
VTENT(SetClass)
VTENT(SetStateBits)
VTENT(Stat)
#undef VTENT
segstvt16 = SEGPTR_NEW(IStorage16_VTable);
memcpy(segstvt16,&stvt16,sizeof(stvt16));
segstvt16 = (LPSTORAGE16_VTABLE)SEGPTR_GET(segstvt16);
} else {
#define VTENT(x) stvt16.fn##x = IStorage16_##x;
VTENT(QueryInterface)
VTENT(AddRef)
VTENT(Release)
VTENT(CreateStream)
VTENT(OpenStream)
VTENT(CreateStorage)
VTENT(OpenStorage)
VTENT(CopyTo)
VTENT(Commit)
/* not (yet) implemented ...
VTENT(MoveElementTo)
VTENT(Revert)
VTENT(EnumElements)
VTENT(DestroyElement)
VTENT(RenameElement)
VTENT(SetElementTimes)
VTENT(SetClass)
VTENT(SetStateBits)
VTENT(Stat)
*/
#undef VTENT
segstvt16 = &stvt16;
}
}
lpst = SEGPTR_NEW(IStorage16);
lpst->lpvtbl = segstvt16;
lpst->ref = 1;
lpst->thisptr = SEGPTR_GET(lpst);
*stg = (void*)lpst->thisptr;
}
/******************************************************************************
* IStorage32_QueryInterface [???]
*/
HRESULT WINAPI IStorage32_QueryInterface(
LPSTORAGE32 this,REFIID refiid,LPVOID *obj
) {
char xrefiid[50];
WINE_StringFromCLSID((LPCLSID)refiid,xrefiid);
TRACE(relay,"(%p)->(%s,%p)\n",this,xrefiid,obj);
if (!memcmp(&IID_IUnknown,refiid,sizeof(IID_IUnknown))) {
*obj = this;
return 0;
}
return OLE_E_ENUM_NOMORE;
}
ULONG WINAPI IStorage32_AddRef(LPSTORAGE32 this) {
return ++(this->ref);
}
ULONG WINAPI IStorage32_Release(LPSTORAGE32 this) {
this->ref--;
if (this->ref)
return this->ref;
HeapFree(GetProcessHeap(),0,this);
return 0;
}
HRESULT WINAPI IStorage32_CreateStream(
LPSTORAGE32 this,LPCOLESTR32 pwcsName,DWORD grfMode,DWORD reserved1,DWORD reserved2, IStream32 **ppstm
) {
TRACE(ole,"(%p)->(%p,0x%08lx,0x%08lx,0x%08lx,%p)\n",
this,pwcsName,grfMode,reserved1,reserved2,ppstm
);
*ppstm = (IStream32*)HeapAlloc(GetProcessHeap(),0,sizeof(IStream32));
(*ppstm)->lpvtbl= &strvt32;
(*ppstm)->ref = 1;
return OLE_OK;
}
HRESULT WINAPI IStorage32_OpenStream(
LPSTORAGE32 this,LPCOLESTR32 pwcsName, void *reserved1, DWORD grfMode, DWORD reserved2, IStream32 **ppstm
) {
TRACE(ole,"(%p)->(%p,%p,0x%08lx,0x%08lx,%p)\n",
this,pwcsName,reserved1,grfMode,reserved2,ppstm
);
*ppstm = (IStream32*)HeapAlloc(GetProcessHeap(),0,sizeof(IStream32));
(*ppstm)->lpvtbl= &strvt32;
(*ppstm)->ref = 1;
return OLE_OK;
}
static IStorage32_VTable stvt32 = {
IStorage32_QueryInterface,
IStorage32_AddRef,
IStorage32_Release,
IStorage32_CreateStream,
IStorage32_OpenStream,
(void*)6,
(void*)7,
(void*)8,
(void*)9,
(void*)10,
(void*)11,
(void*)12,
(void*)13,
(void*)14,
(void*)15,
};
/******************************************************************************
* Storage API functions
*/
/******************************************************************************
* StgCreateDocFile16 [STORAGE.1]
*/
OLESTATUS WINAPI StgCreateDocFile16(
LPCOLESTR16 pwcsName,DWORD grfMode,DWORD reserved,IStorage16 **ppstgOpen
) {
HFILE32 hf;
int i,ret;
LPSTORAGE16 lpstg;
struct storage_pps_entry stde;
TRACE(ole,"(%s,0x%08lx,0x%08lx,%p)\n",
pwcsName,grfMode,reserved,ppstgOpen
);
_create_istorage16(ppstgOpen);
hf = CreateFile32A(pwcsName,GENERIC_READ|GENERIC_WRITE,0,NULL,CREATE_NEW,0,0);
if (hf==INVALID_HANDLE_VALUE32) {
WARN(ole,"couldn't open file for storage:%ld\n",GetLastError());
return E_FAIL;
}
lpstg = (LPSTORAGE16)PTR_SEG_TO_LIN(*ppstgOpen);
lpstg->hf = hf;
/* FIXME: check for existance before overwriting? */
if (!STORAGE_init_storage(hf)) {
CloseHandle(hf);
return E_FAIL;
}
i=0;ret=0;
while (!ret) { /* neither 1 nor <0 */
ret=STORAGE_get_pps_entry(hf,i,&stde);
if ((ret==1) && (stde.pps_type==5)) {
lpstg->stde = stde;
lpstg->ppsent = i;
break;
}
i++;
}
if (ret!=1) {
IStorage16_Release(lpstg); /* will remove it */
return E_FAIL;
}
return OLE_OK;
}
/******************************************************************************
* StgCreateDocFile32 [OLE32.144]
*/
OLESTATUS WINAPI StgCreateDocFile32(
LPCOLESTR32 pwcsName,DWORD grfMode,DWORD reserved,IStorage32 **ppstgOpen
) {
TRACE(ole,"(%p,0x%08lx,0x%08lx,%p)\n",
pwcsName,grfMode,reserved,ppstgOpen
);
*ppstgOpen = (IStorage32*)HeapAlloc(GetProcessHeap(),0,sizeof(IStorage32));
(*ppstgOpen)->ref = 1;
(*ppstgOpen)->lpvtbl = &stvt32;
return OLE_OK;
}
OLESTATUS WINAPI StgIsStorageFile16(LPCOLESTR16 fn) {
HFILE32 hf;
OFSTRUCT ofs;
BYTE magic[24];
TRACE(ole,"(\'%s\')\n",fn);
hf = OpenFile32(fn,&ofs,OF_SHARE_DENY_NONE);
if (hf==HFILE_ERROR32)
return STG_E_FILENOTFOUND;
if (24!=_lread32(hf,magic,24)) {
WARN(ole," too short\n");
_lclose32(hf);
return S_FALSE;
}
if (!memcmp(magic,STORAGE_magic,8)) {
WARN(ole," -> YES\n");
_lclose32(hf);
return S_OK;
}
if (!memcmp(magic,STORAGE_notmagic,8)) {
WARN(ole," -> NO\n");
_lclose32(hf);
return S_FALSE;
}
if (!memcmp(magic,STORAGE_oldmagic,8)) {
WARN(ole," -> old format\n");
_lclose32(hf);
return STG_E_OLDFORMAT;
}
WARN(ole," -> Invalid header.\n");
_lclose32(hf);
return STG_E_INVALIDHEADER;
}
OLESTATUS WINAPI
StgIsStorageFile32(LPCOLESTR32 fn)
{
LPOLESTR16 xfn = HEAP_strdupWtoA(GetProcessHeap(),0,fn);
OLESTATUS ret = StgIsStorageFile16(xfn);
HeapFree(GetProcessHeap(),0,xfn);
return ret;
}
OLESTATUS WINAPI StgOpenStorage16(
const OLECHAR16 * pwcsName,IStorage16 *pstgPriority,DWORD grfMode,
SNB16 snbExclude,DWORD reserved, IStorage16 **ppstgOpen
) {
HFILE32 hf;
int ret,i;
LPSTORAGE16 lpstg;
struct storage_pps_entry stde;
TRACE(ole,"(%s,%p,0x%08lx,%p,%ld,%p)\n",
pwcsName,pstgPriority,grfMode,snbExclude,reserved,ppstgOpen
);
_create_istorage16(ppstgOpen);
hf = CreateFile32A(pwcsName,GENERIC_READ,0,NULL,0,0,0);
if (hf==INVALID_HANDLE_VALUE32) {
WARN(ole,"Couldn't open file for storage\n");
return E_FAIL;
}
lpstg = (LPSTORAGE16)PTR_SEG_TO_LIN(*ppstgOpen);
lpstg->hf = hf;
i=0;ret=0;
while (!ret) { /* neither 1 nor <0 */
ret=STORAGE_get_pps_entry(hf,i,&stde);
if ((ret==1) && (stde.pps_type==5)) {
lpstg->stde=stde;
break;
}
i++;
}
if (ret!=1) {
IStorage16_Release(lpstg); /* will remove it */
return E_FAIL;
}
return OLE_OK;
}
/******************************************************************************
* StgOpenStorage32 [OLE32.148]
*/
OLESTATUS WINAPI StgOpenStorage32(
const OLECHAR32 * pwcsName,IStorage32 *pstgPriority,DWORD grfMode,
SNB32 snbExclude,DWORD reserved, IStorage32 **ppstgOpen
) {
FIXME(ole,"StgOpenStorage32(%p,%p,0x%08lx,%p,%ld,%p),stub!\n",
pwcsName,pstgPriority,grfMode,snbExclude,reserved,
ppstgOpen);
*ppstgOpen = (IStorage32*)HeapAlloc(GetProcessHeap(),0,sizeof(IStorage32));
(*ppstgOpen)->ref = 1;
(*ppstgOpen)->lpvtbl = &stvt32;
return OLE_OK;
}
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