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msi: Move string loading and saving to string.c.

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This commit is contained in:
Rob Shearman 2007-04-23 08:17:40 +01:00 committed by Alexandre Julliard
parent 2e3289ca6c
commit 37b11baaa3
4 changed files with 222 additions and 233 deletions
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4
dlls/msi/database.c
View File

@ -114,7 +114,7 @@ UINT MSI_OpenDatabaseW(LPCWSTR szDBPath, LPCWSTR szPersist, MSIDATABASE **pdb)
if( r == ERROR_SUCCESS )
{
IStorage_SetClass( stg, &CLSID_MsiDatabase );
r = init_string_table( stg );
r = msi_init_string_table( stg );
}
created = TRUE;
}
@ -188,7 +188,7 @@ UINT MSI_OpenDatabaseW(LPCWSTR szDBPath, LPCWSTR szPersist, MSIDATABASE **pdb)
list_init( &db->tables );
list_init( &db->transforms );
db->strings = load_string_table( stg );
db->strings = msi_load_string_table( stg );
if( !db->strings )
goto end;

9
dlls/msi/msipriv.h
View File

@ -536,9 +536,7 @@ extern void msi_free_handle_table(void);
extern void free_cached_tables( MSIDATABASE *db );
extern void msi_free_transforms( MSIDATABASE *db );
extern string_table *load_string_table( IStorage *stg );
extern UINT MSI_CommitTables( MSIDATABASE *db );
extern HRESULT init_string_table( IStorage *stg );
/* string table functions */
@ -563,13 +561,20 @@ extern UINT msi_string_totalsize( string_table *st, UINT *datasize, UINT *poolsi
extern UINT msi_strcmp( string_table *st, UINT lval, UINT rval, UINT *res );
extern const WCHAR *msi_string_lookup_id( string_table *st, UINT id );
extern UINT msi_string_get_codepage( string_table *st );
extern HRESULT msi_init_string_table( IStorage *stg );
extern string_table *msi_load_string_table( IStorage *stg );
extern UINT msi_save_string_table( string_table *st, IStorage *storage );
extern BOOL TABLE_Exists( MSIDATABASE *db, LPCWSTR name );
extern MSICONDITION MSI_DatabaseIsTablePersistent( MSIDATABASE *db, LPCWSTR table );
extern UINT read_raw_stream_data( MSIDATABASE*, LPCWSTR stname,
USHORT **pdata, UINT *psz );
extern UINT read_stream_data( IStorage *stg, LPCWSTR stname,
USHORT **pdata, UINT *psz );
extern UINT write_stream_data( IStorage *stg, LPCWSTR stname,
LPVOID data, UINT sz );
/* transform functions */
extern UINT msi_table_apply_transform( MSIDATABASE *db, IStorage *stg );

200
dlls/msi/string.c
View File

@ -18,6 +18,8 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define COBJMACROS
#include <stdarg.h>
#include <assert.h>
@ -498,3 +500,201 @@ UINT msi_string_get_codepage( string_table *st )
{
return st->codepage;
}
static const WCHAR szStringData[] = {
'_','S','t','r','i','n','g','D','a','t','a',0 };
static const WCHAR szStringPool[] = {
'_','S','t','r','i','n','g','P','o','o','l',0 };
HRESULT msi_init_string_table( IStorage *stg )
{
USHORT zero[2] = { 0, 0 };
UINT ret;
/* create the StringPool stream... add the zero string to it*/
ret = write_stream_data(stg, szStringPool, zero, sizeof zero);
if (ret != ERROR_SUCCESS)
return E_FAIL;
/* create the StringData stream... make it zero length */
ret = write_stream_data(stg, szStringData, NULL, 0);
if (ret != ERROR_SUCCESS)
return E_FAIL;
return S_OK;
}
string_table *msi_load_string_table( IStorage *stg )
{
string_table *st = NULL;
CHAR *data = NULL;
USHORT *pool = NULL;
UINT r, datasize = 0, poolsize = 0, codepage;
DWORD i, count, offset, len, n, refs;
r = read_stream_data( stg, szStringPool, &pool, &poolsize );
if( r != ERROR_SUCCESS)
goto end;
r = read_stream_data( stg, szStringData, (USHORT**)&data, &datasize );
if( r != ERROR_SUCCESS)
goto end;
count = poolsize/4;
if( poolsize > 4 )
codepage = pool[0] | ( pool[1] << 16 );
else
codepage = CP_ACP;
st = msi_init_stringtable( count, codepage );
offset = 0;
n = 1;
i = 1;
while( i<count )
{
/* the string reference count is always the second word */
refs = pool[i*2+1];
/* empty entries have two zeros, still have a string id */
if (pool[i*2] == 0 && refs == 0)
{
i++;
n++;
continue;
}
/*
* If a string is over 64k, the previous string entry is made null
* and its the high word of the length is inserted in the null string's
* reference count field.
*/
if( pool[i*2] == 0)
{
len = (pool[i*2+3] << 16) + pool[i*2+2];
i += 2;
}
else
{
len = pool[i*2];
i += 1;
}
if ( (offset + len) > datasize )
{
ERR("string table corrupt?\n");
break;
}
r = msi_addstring( st, n, data+offset, len, refs, StringPersistent );
if( r != n )
ERR("Failed to add string %d\n", n );
n++;
offset += len;
}
if ( datasize != offset )
ERR("string table load failed! (%08x != %08x), please report\n", datasize, offset );
TRACE("Loaded %d strings\n", count);
end:
msi_free( pool );
msi_free( data );
return st;
}
UINT msi_save_string_table( string_table *st, IStorage *storage )
{
UINT i, count, datasize = 0, poolsize = 0, sz, used, r, codepage, n;
UINT ret = ERROR_FUNCTION_FAILED;
CHAR *data = NULL;
USHORT *pool = NULL;
TRACE("\n");
/* construct the new table in memory first */
count = msi_string_totalsize( st, &datasize, &poolsize );
TRACE("%u %u %u\n", count, datasize, poolsize );
pool = msi_alloc( poolsize );
if( ! pool )
{
WARN("Failed to alloc pool %d bytes\n", poolsize );
goto err;
}
data = msi_alloc( datasize );
if( ! data )
{
WARN("Failed to alloc data %d bytes\n", poolsize );
goto err;
}
used = 0;
codepage = msi_string_get_codepage( st );
pool[0]=codepage&0xffff;
pool[1]=(codepage>>16);
n = 1;
for( i=1; i<count; i++ )
{
UINT refcount = msi_id_persistent_refcount( st, i );
if( !refcount )
continue;
sz = datasize - used;
r = msi_id2stringA( st, i, data+used, &sz );
if( r != ERROR_SUCCESS )
{
ERR("failed to fetch string\n");
sz = 0;
}
if( sz && (sz < (datasize - used ) ) )
sz--;
if (sz)
pool[ n*2 + 1 ] = refcount;
else
pool[ n*2 + 1 ] = 0;
if (sz < 0x10000)
{
pool[ n*2 ] = sz;
n++;
}
else
{
pool[ n*2 ] = 0;
pool[ n*2 + 2 ] = sz&0xffff;
pool[ n*2 + 3 ] = (sz>>16);
n += 2;
}
used += sz;
if( used > datasize )
{
ERR("oops overran %d >= %d\n", used, datasize);
goto err;
}
}
if( used != datasize )
{
ERR("oops used %d != datasize %d\n", used, datasize);
goto err;
}
/* write the streams */
r = write_stream_data( storage, szStringData, data, datasize );
TRACE("Wrote StringData r=%08x\n", r);
if( r )
goto err;
r = write_stream_data( storage, szStringPool, pool, poolsize );
TRACE("Wrote StringPool r=%08x\n", r);
if( r )
goto err;
ret = ERROR_SUCCESS;
err:
msi_free( data );
msi_free( pool );
return ret;
}

242
dlls/msi/table.c
View File

@ -223,8 +223,8 @@ void enum_stream_names( IStorage *stg )
IEnumSTATSTG_Release( stgenum );
}
static UINT read_stream_data( IStorage *stg, LPCWSTR stname,
USHORT **pdata, UINT *psz )
UINT read_stream_data( IStorage *stg, LPCWSTR stname,
USHORT **pdata, UINT *psz )
{
HRESULT r;
UINT ret = ERROR_FUNCTION_FAILED;
@ -370,8 +370,8 @@ end:
return ret;
}
static UINT write_stream_data( IStorage *stg, LPCWSTR stname,
LPVOID data, UINT sz )
UINT write_stream_data( IStorage *stg, LPCWSTR stname,
LPVOID data, UINT sz )
{
HRESULT r;
UINT ret = ERROR_FUNCTION_FAILED;
@ -412,11 +412,14 @@ static UINT write_stream_data( IStorage *stg, LPCWSTR stname,
goto end;
}
r = IStream_Write(stm, data, sz, &count );
if( FAILED( r ) || ( count != sz ) )
if (sz)
{
WARN("Failed to Write\n");
goto end;
r = IStream_Write(stm, data, sz, &count );
if( FAILED( r ) || ( count != sz ) )
{
WARN("Failed to Write\n");
goto end;
}
}
ret = ERROR_SUCCESS;
@ -639,225 +642,6 @@ err:
return r;
}
HRESULT init_string_table( IStorage *stg )
{
HRESULT r;
USHORT zero[2] = { 0, 0 };
ULONG count = 0;
IStream *stm = NULL;
LPWSTR encname;
encname = encode_streamname(TRUE, szStringPool );
/* create the StringPool stream... add the zero string to it*/
r = IStorage_CreateStream( stg, encname,
STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, 0, &stm);
msi_free( encname );
if( r )
{
TRACE("Failed\n");
return r;
}
r = IStream_Write(stm, zero, sizeof zero, &count );
IStream_Release( stm );
if( FAILED( r ) || ( count != sizeof zero ) )
{
TRACE("Failed\n");
return E_FAIL;
}
/* create the StringData stream... make it zero length */
encname = encode_streamname(TRUE, szStringData );
r = IStorage_CreateStream( stg, encname,
STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, 0, &stm);
msi_free( encname );
if( r )
{
TRACE("Failed\n");
return E_FAIL;
}
IStream_Release( stm );
return r;
}
string_table *load_string_table( IStorage *stg )
{
string_table *st = NULL;
CHAR *data = NULL;
USHORT *pool = NULL;
UINT r, datasize = 0, poolsize = 0, codepage;
DWORD i, count, offset, len, n, refs;
r = read_stream_data( stg, szStringPool, &pool, &poolsize );
if( r != ERROR_SUCCESS)
goto end;
r = read_stream_data( stg, szStringData, (USHORT**)&data, &datasize );
if( r != ERROR_SUCCESS)
goto end;
count = poolsize/4;
if( poolsize > 4 )
codepage = pool[0] | ( pool[1] << 16 );
else
codepage = CP_ACP;
st = msi_init_stringtable( count, codepage );
offset = 0;
n = 1;
i = 1;
while( i<count )
{
/* the string reference count is always the second word */
refs = pool[i*2+1];
/* empty entries have two zeros, still have a string id */
if (pool[i*2] == 0 && refs == 0)
{
i++;
n++;
continue;
}
/*
* If a string is over 64k, the previous string entry is made null
* and its the high word of the length is inserted in the null string's
* reference count field.
*/
if( pool[i*2] == 0)
{
len = (pool[i*2+3] << 16) + pool[i*2+2];
i += 2;
}
else
{
len = pool[i*2];
i += 1;
}
if ( (offset + len) > datasize )
{
ERR("string table corrupt?\n");
break;
}
r = msi_addstring( st, n, data+offset, len, refs, StringPersistent );
if( r != n )
ERR("Failed to add string %d\n", n );
n++;
offset += len;
}
if ( datasize != offset )
ERR("string table load failed! (%08x != %08x), please report\n", datasize, offset );
TRACE("Loaded %d strings\n", count);
end:
msi_free( pool );
msi_free( data );
return st;
}
static UINT save_string_table( MSIDATABASE *db )
{
UINT i, count, datasize = 0, poolsize = 0, sz, used, r, codepage, n;
UINT ret = ERROR_FUNCTION_FAILED;
CHAR *data = NULL;
USHORT *pool = NULL;
TRACE("\n");
/* construct the new table in memory first */
count = msi_string_totalsize( db->strings, &datasize, &poolsize );
TRACE("%u %u %u\n", count, datasize, poolsize );
pool = msi_alloc( poolsize );
if( ! pool )
{
WARN("Failed to alloc pool %d bytes\n", poolsize );
goto err;
}
data = msi_alloc( datasize );
if( ! data )
{
WARN("Failed to alloc data %d bytes\n", poolsize );
goto err;
}
used = 0;
codepage = msi_string_get_codepage( db->strings );
pool[0]=codepage&0xffff;
pool[1]=(codepage>>16);
n = 1;
for( i=1; i<count; i++ )
{
UINT refcount = msi_id_persistent_refcount( db->strings, i );
if( !refcount )
continue;
sz = datasize - used;
r = msi_id2stringA( db->strings, i, data+used, &sz );
if( r != ERROR_SUCCESS )
{
ERR("failed to fetch string\n");
sz = 0;
}
if( sz && (sz < (datasize - used ) ) )
sz--;
if (sz)
pool[ n*2 + 1 ] = refcount;
else
pool[ n*2 + 1 ] = 0;
if (sz < 0x10000)
{
pool[ n*2 ] = sz;
n++;
}
else
{
pool[ n*2 ] = 0;
pool[ n*2 + 2 ] = sz&0xffff;
pool[ n*2 + 3 ] = (sz>>16);
n += 2;
}
used += sz;
if( used > datasize )
{
ERR("oops overran %d >= %d\n", used, datasize);
goto err;
}
}
if( used != datasize )
{
ERR("oops used %d != datasize %d\n", used, datasize);
goto err;
}
/* write the streams */
r = write_stream_data( db->storage, szStringData, data, datasize );
TRACE("Wrote StringData r=%08x\n", r);
if( r )
goto err;
r = write_stream_data( db->storage, szStringPool, pool, poolsize );
TRACE("Wrote StringPool r=%08x\n", r);
if( r )
goto err;
ret = ERROR_SUCCESS;
err:
msi_free( data );
msi_free( pool );
return ret;
}
/* information for default tables */
static const WCHAR szTables[] = { '_','T','a','b','l','e','s',0 };
static const WCHAR szTable[] = { 'T','a','b','l','e',0 };
@ -1690,7 +1474,7 @@ UINT MSI_CommitTables( MSIDATABASE *db )
TRACE("%p\n",db);
r = save_string_table( db );
r = msi_save_string_table( db->strings, db->storage );
if( r != ERROR_SUCCESS )
{
WARN("failed to save string table r=%08x\n",r);
@ -2068,7 +1852,7 @@ UINT msi_table_apply_transform( MSIDATABASE *db, IStorage *stg )
TRACE("%p %p\n", db, stg );
strings = load_string_table( stg );
strings = msi_load_string_table( stg );
if( !strings )
goto end;