record.c

winNT技术操作系统,国外开放的原代码和LIUX一样

/*
 * Implementation of the Microsoft Installer (msi.dll)
 *
 * Copyright 2002-2004 Mike McCormack for CodeWeavers
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include <stdarg.h>

#define COBJMACROS

#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "winerror.h"
#include "wine/debug.h"
#include "msi.h"
#include "msiquery.h"
#include "msipriv.h"
#include "objidl.h"
#include "winnls.h"
#include "ole2.h"

#include "winreg.h"
#include "shlwapi.h"

#include "query.h"

WINE_DEFAULT_DEBUG_CHANNEL(msidb);

#define MSIFIELD_NULL   0
#define MSIFIELD_INT    1
#define MSIFIELD_WSTR   3
#define MSIFIELD_STREAM 4

static void MSI_FreeField( MSIFIELD *field )
{
    switch( field->type )
    {
    case MSIFIELD_NULL:
    case MSIFIELD_INT:
        break;
    case MSIFIELD_WSTR:
        msi_free( field->u.szwVal);
        break;
    case MSIFIELD_STREAM:
        IStream_Release( field->u.stream );
        break;
    default:
        ERR("Invalid field type %d\n", field->type);
    }
}

static void MSI_CloseRecord( MSIOBJECTHDR *arg )
{
    MSIRECORD *rec = (MSIRECORD *) arg;
    UINT i;

    for( i=0; i<=rec->count; i++ )
        MSI_FreeField( &rec->fields[i] );
}

MSIRECORD *MSI_CreateRecord( unsigned int cParams )
{
    MSIRECORD *rec;
    UINT len;

    TRACE("%d\n", cParams);

    if( cParams>65535 )
        return NULL;

    len = sizeof (MSIRECORD) + sizeof (MSIFIELD)*cParams;
    rec = alloc_msiobject( MSIHANDLETYPE_RECORD, len, MSI_CloseRecord );
    if( rec )
        rec->count = cParams;
    return rec;
}

MSIHANDLE WINAPI MsiCreateRecord( unsigned int cParams )
{
    MSIRECORD *rec;
    MSIHANDLE ret = 0;

    TRACE("%d\n", cParams);

    rec = MSI_CreateRecord( cParams );
    if( rec )
    {
        ret = alloc_msihandle( &rec->hdr );
        msiobj_release( &rec->hdr );
    }
    return ret;
}

unsigned int MSI_RecordGetFieldCount( MSIRECORD *rec )
{
    return rec->count;
}

unsigned int WINAPI MsiRecordGetFieldCount( MSIHANDLE handle )
{
    MSIRECORD *rec;
    UINT ret;

    TRACE("%ld\n", handle );

    rec = msihandle2msiinfo( handle, MSIHANDLETYPE_RECORD );
    if( !rec )
        return -1;

    msiobj_lock( &rec->hdr );
    ret = MSI_RecordGetFieldCount( rec );
    msiobj_unlock( &rec->hdr );
    msiobj_release( &rec->hdr );

    return ret;
}

static BOOL string2intW( LPCWSTR str, int *out )
{
    int x = 0;
    LPCWSTR p = str;

    if( *p == '-' ) /* skip the minus sign */
        p++;
    while ( *p )
    {
        if( (*p < '0') || (*p > '9') )
            return FALSE;
        x *= 10;
        x += (*p - '0');
        p++;
    }

    if( str[0] == '-' ) /* check if it's negative */
        x = -x;
    *out = x; 

    return TRUE;
}

UINT MSI_RecordCopyField( MSIRECORD *in_rec, unsigned int in_n,
                          MSIRECORD *out_rec, unsigned int out_n )
{
    UINT r = ERROR_SUCCESS;

    msiobj_lock( &in_rec->hdr );

    if ( in_n > in_rec->count || out_n > out_rec->count )
        r = ERROR_FUNCTION_FAILED;
    else if ( in_rec != out_rec || in_n != out_n )
    {
        LPWSTR str;
        MSIFIELD *in, *out;

        in = &in_rec->fields[in_n];
        out = &out_rec->fields[out_n];

        switch ( in->type )
        {
        case MSIFIELD_NULL:
            break;
        case MSIFIELD_INT:
            out->u.iVal = in->u.iVal;
            break;
        case MSIFIELD_WSTR:
            str = strdupW( in->u.szwVal );
            if ( !str )
                r = ERROR_OUTOFMEMORY;
            else
                out->u.szwVal = str;
            break;
        case MSIFIELD_STREAM:
            IStream_AddRef( in->u.stream );
            out->u.stream = in->u.stream;
            break;
        default:
            ERR("invalid field type %d\n", in->type);
        }
        if (r == ERROR_SUCCESS)
            out->type = in->type;
    }

    msiobj_unlock( &in_rec->hdr );

    return r;
}

int MSI_RecordGetInteger( MSIRECORD *rec, unsigned int iField)
{
    int ret = 0;

    TRACE("%p %d\n", rec, iField );

    if( iField > rec->count )
        return MSI_NULL_INTEGER;

    switch( rec->fields[iField].type )
    {
    case MSIFIELD_INT:
        return rec->fields[iField].u.iVal;
    case MSIFIELD_WSTR:
        if( string2intW( rec->fields[iField].u.szwVal, &ret ) )
            return ret;
        return MSI_NULL_INTEGER;
    default:
        break;
    }

    return MSI_NULL_INTEGER;
}

int WINAPI MsiRecordGetInteger( MSIHANDLE handle, unsigned int iField)
{
    MSIRECORD *rec;
    UINT ret;

    TRACE("%ld %d\n", handle, iField );

    rec = msihandle2msiinfo( handle, MSIHANDLETYPE_RECORD );
    if( !rec )
        return MSI_NULL_INTEGER;

    msiobj_lock( &rec->hdr );
    ret = MSI_RecordGetInteger( rec, iField );
    msiobj_unlock( &rec->hdr );
    msiobj_release( &rec->hdr );

    return ret;
}

UINT WINAPI MsiRecordClearData( MSIHANDLE handle )
{
    MSIRECORD *rec;
    UINT i;

    TRACE("%ld\n", handle );

    rec = msihandle2msiinfo( handle, MSIHANDLETYPE_RECORD );
    if( !rec )
        return ERROR_INVALID_HANDLE;

    msiobj_lock( &rec->hdr );
    for( i=0; i<=rec->count; i++)
    {
        MSI_FreeField( &rec->fields[i] );
        rec->fields[i].type = MSIFIELD_NULL;
        rec->fields[i].u.iVal = 0;
    }
    msiobj_unlock( &rec->hdr );
    msiobj_release( &rec->hdr );

    return ERROR_SUCCESS;
}

UINT MSI_RecordSetInteger( MSIRECORD *rec, unsigned int iField, int iVal )
{
    TRACE("%p %u %d\n", rec, iField, iVal);

    if( iField > rec->count )
        return ERROR_INVALID_PARAMETER;
 
    MSI_FreeField( &rec->fields[iField] );
    rec->fields[iField].type = MSIFIELD_INT;
    rec->fields[iField].u.iVal = iVal;

    return ERROR_SUCCESS;
}

UINT WINAPI MsiRecordSetInteger( MSIHANDLE handle, unsigned int iField, int iVal )
{
    MSIRECORD *rec;
    UINT ret;

    TRACE("%ld %u %d\n", handle, iField, iVal);

    rec = msihandle2msiinfo( handle, MSIHANDLETYPE_RECORD );
    if( !rec )
        return ERROR_INVALID_HANDLE;

    msiobj_lock( &rec->hdr );
    ret = MSI_RecordSetInteger( rec, iField, iVal );
    msiobj_unlock( &rec->hdr );
    msiobj_release( &rec->hdr );
    return ret;
}

BOOL MSI_RecordIsNull( MSIRECORD *rec, unsigned int iField )
{
    BOOL r = TRUE;

    TRACE("%p %d\n", rec, iField );

    r = ( iField > rec->count ) ||
        ( rec->fields[iField].type == MSIFIELD_NULL );

    return r;
}

BOOL WINAPI MsiRecordIsNull( MSIHANDLE handle, unsigned int iField )
{
    MSIRECORD *rec;
    UINT ret;

    TRACE("%ld %d\n", handle, iField );

    rec = msihandle2msiinfo( handle, MSIHANDLETYPE_RECORD );
    if( !rec )
        return 0;
    msiobj_lock( &rec->hdr );
    ret = MSI_RecordIsNull( rec, iField );
    msiobj_unlock( &rec->hdr );
    msiobj_release( &rec->hdr );
    return ret;

}

UINT MSI_RecordGetStringA(MSIRECORD *rec, unsigned int iField, 
               LPSTR szValue, DWORD *pcchValue)
{
    UINT len=0, ret;
    CHAR buffer[16];

    TRACE("%p %d %p %p\n", rec, iField, szValue, pcchValue);

    if( iField > rec->count )
        return ERROR_INVALID_PARAMETER;

    ret = ERROR_SUCCESS;
    switch( rec->fields[iField].type )
    {
    case MSIFIELD_INT:
        wsprintfA(buffer, "%d", rec->fields[iField].u.iVal);
        len = lstrlenA( buffer );
        lstrcpynA(szValue, buffer, *pcchValue);
        break;
    case MSIFIELD_WSTR:
        len = WideCharToMultiByte( CP_ACP, 0, rec->fields[iField].u.szwVal, -1,
                             NULL, 0 , NULL, NULL);
        WideCharToMultiByte( CP_ACP, 0, rec->fields[iField].u.szwVal, -1,
                             szValue, *pcchValue, NULL, NULL);
        if( szValue && *pcchValue && len>*pcchValue )
            szValue[*pcchValue-1] = 0;
        if( len )
            len--;
        break;
    case MSIFIELD_NULL:
        if( *pcchValue > 0 )
            szValue[0] = 0;
        break;
    default:
        ret = ERROR_INVALID_PARAMETER;
        break;
    }

    if( szValue && *pcchValue <= len )
        ret = ERROR_MORE_DATA;
    *pcchValue = len;

    return ret;
}

UINT WINAPI MsiRecordGetStringA(MSIHANDLE handle, unsigned int iField, 
               LPSTR szValue, DWORD *pcchValue)
{
    MSIRECORD *rec;
    UINT ret;

    TRACE("%ld %d %p %p\n", handle, iField, szValue, pcchValue);

    rec = msihandle2msiinfo( handle, MSIHANDLETYPE_RECORD );
    if( !rec )
        return ERROR_INVALID_HANDLE;
    msiobj_lock( &rec->hdr );
    ret = MSI_RecordGetStringA( rec, iField, szValue, pcchValue);
    msiobj_unlock( &rec->hdr );
    msiobj_release( &rec->hdr );
    return ret;
}

const WCHAR *MSI_RecordGetString( MSIRECORD *rec, unsigned int iField )
{
    if( iField > rec->count )
        return NULL;

    if( rec->fields[iField].type != MSIFIELD_WSTR )
        return NULL;

    return rec->fields[iField].u.szwVal;
}

UINT MSI_RecordGetStringW(MSIRECORD *rec, unsigned int iField,
               LPWSTR szValue, DWORD *pcchValue)
{
    UINT len=0, ret;
    WCHAR buffer[16];
    static const WCHAR szFormat[] = { '%','d',0 };

    TRACE("%p %d %p %p\n", rec, iField, szValue, pcchValue);

    if( iField > rec->count )
        return ERROR_INVALID_PARAMETER;

    ret = ERROR_SUCCESS;
    switch( rec->fields[iField].type )
    {
    case MSIFIELD_INT:
        wsprintfW(buffer, szFormat, rec->fields[iField].u.iVal);
        len = lstrlenW( buffer );
        lstrcpynW(szValue, buffer, *pcchValue);
        break;
    case MSIFIELD_WSTR:
        len = lstrlenW( rec->fields[iField].u.szwVal );
        lstrcpynW(szValue, rec->fields[iField].u.szwVal, *pcchValue);
        break;
    case MSIFIELD_NULL:
        len = 1;
        if( szValue && *pcchValue > 0 )
            szValue[0] = 0;
    default:
        break;
    }

    if( szValue && *pcchValue <= len )
        ret = ERROR_MORE_DATA;
    *pcchValue = len;