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msi: Add support for storing strings with embedded nulls in the string table.

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This commit is contained in:
Hans Leidekker 2012-10-29 12:12:50 +01:00 committed by Alexandre Julliard
parent 652863f4d5
commit 6950ac1d1c
7 changed files with 66 additions and 50 deletions
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4
dlls/msi/msipriv.h
View file

@ -754,9 +754,9 @@ enum StringPersistence
};
extern BOOL msi_addstringW( string_table *st, const WCHAR *data, int len, USHORT refcount, enum StringPersistence persistence ) DECLSPEC_HIDDEN;
extern UINT msi_string2idW( const string_table *st, LPCWSTR buffer, UINT *id ) DECLSPEC_HIDDEN;
extern UINT msi_string2id( const string_table *st, const WCHAR *data, int len, UINT *id ) DECLSPEC_HIDDEN;
extern VOID msi_destroy_stringtable( string_table *st ) DECLSPEC_HIDDEN;
extern const WCHAR *msi_string_lookup_id( const string_table *st, UINT id ) DECLSPEC_HIDDEN;
extern const WCHAR *msi_string_lookup( const string_table *st, UINT id, int *len ) DECLSPEC_HIDDEN;
extern HRESULT msi_init_string_table( IStorage *stg ) DECLSPEC_HIDDEN;
extern string_table *msi_load_string_table( IStorage *stg, UINT *bytes_per_strref ) DECLSPEC_HIDDEN;
extern UINT msi_save_string_table( const string_table *st, IStorage *storage, UINT *bytes_per_strref ) DECLSPEC_HIDDEN;

2
dlls/msi/msiquery.c
View file

@ -347,7 +347,7 @@ UINT msi_view_get_row(MSIDATABASE *db, MSIVIEW *view, UINT row, MSIRECORD **rec)
{
LPCWSTR sval;
sval = msi_string_lookup_id(db->strings, ival);
sval = msi_string_lookup(db->strings, ival, NULL);
MSI_RecordSetStringW(*rec, i, sval);
}
else

2
dlls/msi/storages.c
View file

@ -312,7 +312,7 @@ static UINT storages_find_row(MSISTORAGESVIEW *sv, MSIRECORD *rec, UINT *row)
UINT r, i, id, data;
str = MSI_RecordGetString(rec, 1);
r = msi_string2idW(sv->db->strings, str, &id);
r = msi_string2id(sv->db->strings, str, -1, &id);
if (r != ERROR_SUCCESS)
return r;

2
dlls/msi/streams.c
View file

@ -299,7 +299,7 @@ static UINT streams_find_row(MSISTREAMSVIEW *sv, MSIRECORD *rec, UINT *row)
UINT r, i, id, data;
str = MSI_RecordGetString(rec, 1);
r = msi_string2idW(sv->db->strings, str, &id);
r = msi_string2id(sv->db->strings, str, -1, &id);
if (r != ERROR_SUCCESS)
return r;

73
dlls/msi/string.c
View file

@ -45,7 +45,8 @@ struct msistring
{
USHORT persistent_refcount;
USHORT nonpersistent_refcount;
LPWSTR str;
WCHAR *data;
int len;
};
struct string_table
@ -112,7 +113,7 @@ VOID msi_destroy_stringtable( string_table *st )
{
if( st->strings[i].persistent_refcount ||
st->strings[i].nonpersistent_refcount )
msi_free( st->strings[i].str );
msi_free( st->strings[i].data );
}
msi_free( st->strings );
msi_free( st->sorted );
@ -162,6 +163,19 @@ static int st_find_free_entry( string_table *st )
return st->freeslot;
}
static inline int cmp_string( const WCHAR *str1, int len1, const WCHAR *str2, int len2 )
{
if (len1 < len2) return -1;
else if (len1 > len2) return 1;
while (len1)
{
if (*str1 == *str2) { str1++; str2++; }
else return *str1 - *str2;
len1--;
}
return 0;
}
static int find_insert_index( const string_table *st, UINT string_id )
{
int i, c, low = 0, high = st->sortcount - 1;
@ -169,8 +183,8 @@ static int find_insert_index( const string_table *st, UINT string_id )
while (low <= high)
{
i = (low + high) / 2;
c = strcmpW( st->strings[string_id].str, st->strings[st->sorted[i]].str );
c = cmp_string( st->strings[string_id].data, st->strings[string_id].len,
st->strings[st->sorted[i]].data, st->strings[st->sorted[i]].len );
if (c < 0)
high = i - 1;
else if (c > 0)
@ -194,7 +208,8 @@ static void insert_string_sorted( string_table *st, UINT string_id )
st->sortcount++;
}
static void set_st_entry( string_table *st, UINT n, LPWSTR str, USHORT refcount, enum StringPersistence persistence )
static void set_st_entry( string_table *st, UINT n, WCHAR *str, int len, USHORT refcount,
enum StringPersistence persistence )
{
if (persistence == StringPersistent)
{
@ -207,7 +222,8 @@ static void set_st_entry( string_table *st, UINT n, LPWSTR str, USHORT refcount,
st->strings[n].nonpersistent_refcount = refcount;
}
st->strings[n].str = str;
st->strings[n].data = str;
st->strings[n].len = len;
insert_string_sorted( st, n );
@ -237,9 +253,8 @@ static UINT msi_string2idA( const string_table *st, LPCSTR buffer, UINT *id )
return ERROR_NOT_ENOUGH_MEMORY;
MultiByteToWideChar( st->codepage, 0, buffer, -1, str, sz );
r = msi_string2idW( st, str, id );
r = msi_string2id( st, str, sz - 1, id );
msi_free( str );
return r;
}
@ -289,7 +304,7 @@ static int msi_addstring( string_table *st, UINT n, const CHAR *data, int len, U
MultiByteToWideChar( st->codepage, 0, data, len, str, sz );
str[sz] = 0;
set_st_entry( st, n, str, refcount, persistence );
set_st_entry( st, n, str, sz, refcount, persistence );
return n;
}
@ -301,10 +316,10 @@ int msi_addstringW( string_table *st, const WCHAR *data, int len, USHORT refcoun
if( !data )
return 0;
if( !data[0] )
if( !data[0] && !len )
return 0;
if( msi_string2idW( st, data, &n ) == ERROR_SUCCESS )
if (msi_string2id( st, data, len, &n) == ERROR_SUCCESS )
{
if (persistence == StringPersistent)
st->strings[n].persistent_refcount += refcount;
@ -320,7 +335,7 @@ int msi_addstringW( string_table *st, const WCHAR *data, int len, USHORT refcoun
/* allocate a new string */
if(len<0)
len = strlenW(data);
TRACE("%s, n = %d len = %d\n", debugstr_w(data), n, len );
TRACE( "%s, n = %d len = %d\n", debugstr_wn(data, len), n, len );
str = msi_alloc( (len+1)*sizeof(WCHAR) );
if( !str )
@ -328,13 +343,13 @@ int msi_addstringW( string_table *st, const WCHAR *data, int len, USHORT refcoun
memcpy( str, data, len*sizeof(WCHAR) );
str[len] = 0;
set_st_entry( st, n, str, refcount, persistence );
set_st_entry( st, n, str, len, refcount, persistence );
return n;
}
/* find the string identified by an id - return null if there's none */
const WCHAR *msi_string_lookup_id( const string_table *st, UINT id )
const WCHAR *msi_string_lookup( const string_table *st, UINT id, int *len )
{
if( id == 0 )
return szEmpty;
@ -345,7 +360,9 @@ const WCHAR *msi_string_lookup_id( const string_table *st, UINT id )
if( id && !st->strings[id].persistent_refcount && !st->strings[id].nonpersistent_refcount)
return NULL;
return st->strings[id].str;
if (len) *len = st->strings[id].len;
return st->strings[id].data;
}
/*
@ -361,16 +378,15 @@ const WCHAR *msi_string_lookup_id( const string_table *st, UINT id )
*/
static UINT msi_id2stringA( const string_table *st, UINT id, LPSTR buffer, UINT *sz )
{
UINT len, lenW;
int len, lenW;
const WCHAR *str;
TRACE("Finding string %d of %d\n", id, st->maxcount);
str = msi_string_lookup_id( st, id );
str = msi_string_lookup( st, id, &lenW );
if( !str )
return ERROR_FUNCTION_FAILED;
lenW = strlenW( str );
len = WideCharToMultiByte( st->codepage, 0, str, lenW, NULL, 0, NULL, NULL );
if( *sz < len )
{
@ -382,20 +398,22 @@ static UINT msi_id2stringA( const string_table *st, UINT id, LPSTR buffer, UINT
}
/*
* msi_string2idW
* msi_string2id
*
* [in] st - pointer to the string table
* [in] str - string to find in the string table
* [out] id - id of the string, if found
*/
UINT msi_string2idW( const string_table *st, LPCWSTR str, UINT *id )
UINT msi_string2id( const string_table *st, const WCHAR *str, int len, UINT *id )
{
int i, c, low = 0, high = st->sortcount - 1;
if (len < 0) len = strlenW( str );
while (low <= high)
{
i = (low + high) / 2;
c = strcmpW( str, st->strings[st->sorted[i]].str );
c = cmp_string( str, len, st->strings[st->sorted[i]].data, st->strings[st->sorted[i]].len );
if (c < 0)
high = i - 1;
@ -407,7 +425,6 @@ UINT msi_string2idW( const string_table *st, LPCWSTR str, UINT *id )
return ERROR_SUCCESS;
}
}
return ERROR_INVALID_PARAMETER;
}
@ -415,7 +432,7 @@ static void string_totalsize( const string_table *st, UINT *datasize, UINT *pool
{
UINT i, len, holesize;
if( st->strings[0].str || st->strings[0].persistent_refcount || st->strings[0].nonpersistent_refcount)
if( st->strings[0].data || st->strings[0].persistent_refcount || st->strings[0].nonpersistent_refcount)
ERR("oops. element 0 has a string\n");
*poolsize = 4;
@ -425,14 +442,14 @@ static void string_totalsize( const string_table *st, UINT *datasize, UINT *pool
{
if( !st->strings[i].persistent_refcount )
{
TRACE("[%u] nonpersistent = %s\n", i, debugstr_w(st->strings[i].str));
TRACE("[%u] nonpersistent = %s\n", i, debugstr_wn(st->strings[i].data, st->strings[i].len));
(*poolsize) += 4;
}
else if( st->strings[i].str )
else if( st->strings[i].data )
{
TRACE("[%u] = %s\n", i, debugstr_w(st->strings[i].str));
len = WideCharToMultiByte( st->codepage, 0,
st->strings[i].str, -1, NULL, 0, NULL, NULL);
TRACE("[%u] = %s\n", i, debugstr_wn(st->strings[i].data, st->strings[i].len));
len = WideCharToMultiByte( st->codepage, 0, st->strings[i].data, st->strings[i].len + 1,
NULL, 0, NULL, NULL);
if( len )
len--;
(*datasize) += len;

29
dlls/msi/table.c
View file

@ -660,7 +660,7 @@ static UINT get_tablecolumns( MSIDATABASE *db, LPCWSTR szTableName, MSICOLUMNINF
}
/* convert table and column names to IDs from the string table */
r = msi_string2idW( db->strings, szTableName, &table_id );
r = msi_string2id( db->strings, szTableName, -1, &table_id );
if (r != ERROR_SUCCESS)
{
WARN("Couldn't find id for %s\n", debugstr_w(szTableName));
@ -693,9 +693,9 @@ static UINT get_tablecolumns( MSIDATABASE *db, LPCWSTR szTableName, MSICOLUMNINF
ERR("duplicate column %d\n", col);
continue;
}
colinfo[col - 1].tablename = msi_string_lookup_id( db->strings, table_id );
colinfo[col - 1].tablename = msi_string_lookup( db->strings, table_id, NULL );
colinfo[col - 1].number = col;
colinfo[col - 1].colname = msi_string_lookup_id( db->strings, id );
colinfo[col - 1].colname = msi_string_lookup( db->strings, id, NULL );
colinfo[col - 1].type = read_table_int( table->data, i, table->colinfo[3].offset,
sizeof(USHORT) ) - (1 << 15);
colinfo[col - 1].offset = 0;
@ -763,9 +763,9 @@ UINT msi_create_table( MSIDATABASE *db, LPCWSTR name, column_info *col_info,
UINT table_id = msi_addstringW( db->strings, col->table, -1, 1, string_persistence );
UINT col_id = msi_addstringW( db->strings, col->column, -1, 1, string_persistence );
table->colinfo[ i ].tablename = msi_string_lookup_id( db->strings, table_id );
table->colinfo[ i ].tablename = msi_string_lookup( db->strings, table_id, NULL );
table->colinfo[ i ].number = i + 1;
table->colinfo[ i ].colname = msi_string_lookup_id( db->strings, col_id );
table->colinfo[ i ].colname = msi_string_lookup( db->strings, col_id, NULL );
table->colinfo[ i ].type = col->type;
table->colinfo[ i ].offset = 0;
table->colinfo[ i ].ref_count = 0;
@ -981,7 +981,7 @@ BOOL TABLE_Exists( MSIDATABASE *db, LPCWSTR name )
!strcmpW( name, szStreams ) || !strcmpW( name, szStorages ) )
return TRUE;
r = msi_string2idW( db->strings, name, &table_id );
r = msi_string2id( db->strings, name, -1, &table_id );
if( r != ERROR_SUCCESS )
{
TRACE("Couldn't find id for %s\n", debugstr_w(name));
@ -1087,7 +1087,7 @@ static UINT msi_stream_name( const MSITABLEVIEW *tv, UINT row, LPWSTR *pstname )
if ( tv->columns[i].type & MSITYPE_STRING )
{
sval = msi_string_lookup_id( tv->db->strings, ival );
sval = msi_string_lookup( tv->db->strings, ival, NULL );
if ( !sval )
{
r = ERROR_INVALID_PARAMETER;
@ -1276,7 +1276,7 @@ static UINT get_table_value_from_record( MSITABLEVIEW *tv, MSIRECORD *rec, UINT
LPCWSTR sval = MSI_RecordGetString( rec, iField );
if (sval)
{
r = msi_string2idW(tv->db->strings, sval, pvalue);
r = msi_string2id(tv->db->strings, sval, -1, pvalue);
if (r != ERROR_SUCCESS)
return ERROR_NOT_FOUND;
}
@ -2343,7 +2343,7 @@ static MSIRECORD *msi_get_transform_record( const MSITABLEVIEW *tv, const string
LPCWSTR sval;
val = read_raw_int(rawdata, ofs, bytes_per_strref);
sval = msi_string_lookup_id( st, val );
sval = msi_string_lookup( st, val, NULL );
MSI_RecordSetStringW( rec, i+1, sval );
TRACE(" field %d [%s]\n", i+1, debugstr_w(sval));
ofs += bytes_per_strref;
@ -2395,13 +2395,12 @@ static void dump_record( MSIRECORD *rec )
static void dump_table( const string_table *st, const USHORT *rawdata, UINT rawsize )
{
LPCWSTR sval;
UINT i;
for( i=0; i<(rawsize/2); i++ )
for (i = 0; i < rawsize / 2; i++)
{
sval = msi_string_lookup_id( st, rawdata[i] );
MESSAGE(" %04x %s\n", rawdata[i], debugstr_w(sval) );
int len;
const WCHAR *sval = msi_string_lookup( st, rawdata[i], &len );
MESSAGE(" %04x %s\n", rawdata[i], debugstr_wn(sval, len) );
}
}
@ -2425,7 +2424,7 @@ static UINT* msi_record_to_row( const MSITABLEVIEW *tv, MSIRECORD *rec )
str = MSI_RecordGetString( rec, i+1 );
if (str)
{
r = msi_string2idW( tv->db->strings, str, &data[i] );
r = msi_string2id( tv->db->strings, str, -1, &data[i] );
/* if there's no matching string in the string table,
these keys can't match any record, so fail now. */

4
dlls/msi/where.c
View file

@ -494,7 +494,7 @@ static UINT STRING_evaluate( MSIWHEREVIEW *wv, const UINT rows[],
case EXPR_COL_NUMBER_STRING:
r = expr_fetch_value(&expr->u.column, rows, &val);
if (r == ERROR_SUCCESS)
*str = msi_string_lookup_id(wv->db->strings, val);
*str = msi_string_lookup(wv->db->strings, val, NULL);
else
*str = NULL;
break;
@ -883,7 +883,7 @@ static UINT join_find_row( MSIWHEREVIEW *wv, MSIRECORD *rec, UINT *row )
UINT r, i, id, data;
str = MSI_RecordGetString( rec, 1 );
r = msi_string2idW( wv->db->strings, str, &id );
r = msi_string2id( wv->db->strings, str, -1, &id );
if (r != ERROR_SUCCESS)
return r;