version.c 49 KB
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/*
 * Implementation of VERSION.DLL
 *
 * Copyright 1996,1997 Marcus Meissner
 * Copyright 1997 David Cuthbert
 * Copyright 1999 Ulrich Weigand
 * Copyright 2005 Paul Vriens
 *
 * 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 "config.h"

#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>

#include <sys/types.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif

#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "windef.h"
#include "winbase.h"
#include "winver.h"
#include "winuser.h"
#include "winnls.h"
#include "winternl.h"
#include "lzexpand.h"
#include "wine/unicode.h"
#include "winerror.h"
#include "wine/debug.h"


WINE_DEFAULT_DEBUG_CHANNEL(ver);

typedef struct
{
    WORD offset;
    WORD length;
    WORD flags;
    WORD id;
    WORD handle;
    WORD usage;
} NE_NAMEINFO;

typedef struct
{
    WORD  type_id;
    WORD  count;
    DWORD resloader;
} NE_TYPEINFO;

/**********************************************************************
 *  find_entry_by_id
 *
 * Find an entry by id in a resource directory
 * Copied from loader/pe_resource.c
 */
static const IMAGE_RESOURCE_DIRECTORY *find_entry_by_id( const IMAGE_RESOURCE_DIRECTORY *dir,
                                                         WORD id, const void *root )
{
    const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
    int min, max, pos;

    entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
    min = dir->NumberOfNamedEntries;
    max = min + dir->NumberOfIdEntries - 1;
    while (min <= max)
    {
        pos = (min + max) / 2;
        if (entry[pos].u1.s2.Id == id)
            return (const IMAGE_RESOURCE_DIRECTORY *)((const char *)root + entry[pos].u2.s3.OffsetToDirectory);
        if (entry[pos].u1.s2.Id > id) max = pos - 1;
        else min = pos + 1;
    }
    return NULL;
}


/**********************************************************************
 *  find_entry_default
 *
 * Find a default entry in a resource directory
 * Copied from loader/pe_resource.c
 */
static const IMAGE_RESOURCE_DIRECTORY *find_entry_default( const IMAGE_RESOURCE_DIRECTORY *dir,
                                                           const void *root )
{
    const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;

    entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
    return (const IMAGE_RESOURCE_DIRECTORY *)((const char *)root + entry->u2.s3.OffsetToDirectory);
}


/***********************************************************************
 *           read_xx_header         [internal]
 */
static int read_xx_header( HFILE lzfd )
{
    IMAGE_DOS_HEADER mzh;
    char magic[3];

    LZSeek( lzfd, 0, SEEK_SET );
    if ( sizeof(mzh) != LZRead( lzfd, (LPSTR)&mzh, sizeof(mzh) ) )
        return 0;
    if ( mzh.e_magic != IMAGE_DOS_SIGNATURE )
    {
        if (!memcmp( &mzh, "\177ELF", 4 )) return 1;  /* ELF */
        if (*(UINT *)&mzh == 0xfeedface || *(UINT *)&mzh == 0xcefaedfe) return 1;  /* Mach-O */
        return 0;
    }

    LZSeek( lzfd, mzh.e_lfanew, SEEK_SET );
    if ( 2 != LZRead( lzfd, magic, 2 ) )
        return 0;

    LZSeek( lzfd, mzh.e_lfanew, SEEK_SET );

    if ( magic[0] == 'N' && magic[1] == 'E' )
        return IMAGE_OS2_SIGNATURE;
    if ( magic[0] == 'P' && magic[1] == 'E' )
        return IMAGE_NT_SIGNATURE;

    magic[2] = '\0';
    WARN("Can't handle %s files.\n", magic );
    return 0;
}

/***********************************************************************
 *           find_ne_resource         [internal]
 */
static BOOL find_ne_resource( HFILE lzfd, DWORD *resLen, DWORD *resOff )
{
    const WORD typeid = VS_FILE_INFO | 0x8000;
    const WORD resid = VS_VERSION_INFO | 0x8000;
    IMAGE_OS2_HEADER nehd;
    NE_TYPEINFO *typeInfo;
    NE_NAMEINFO *nameInfo;
    DWORD nehdoffset;
    LPBYTE resTab;
    DWORD resTabSize;
    int count;

    /* Read in NE header */
    nehdoffset = LZSeek( lzfd, 0, SEEK_CUR );
    if ( sizeof(nehd) != LZRead( lzfd, (LPSTR)&nehd, sizeof(nehd) ) ) return 0;

    resTabSize = nehd.ne_restab - nehd.ne_rsrctab;
    if ( !resTabSize )
    {
        TRACE("No resources in NE dll\n" );
        return FALSE;
    }

    /* Read in resource table */
    resTab = HeapAlloc( GetProcessHeap(), 0, resTabSize );
    if ( !resTab ) return FALSE;

    LZSeek( lzfd, nehd.ne_rsrctab + nehdoffset, SEEK_SET );
    if ( resTabSize != LZRead( lzfd, (char*)resTab, resTabSize ) )
    {
        HeapFree( GetProcessHeap(), 0, resTab );
        return FALSE;
    }

    /* Find resource */
    typeInfo = (NE_TYPEINFO *)(resTab + 2);
    while (typeInfo->type_id)
    {
        if (typeInfo->type_id == typeid) goto found_type;
        typeInfo = (NE_TYPEINFO *)((char *)(typeInfo + 1) +
                                   typeInfo->count * sizeof(NE_NAMEINFO));
    }
    TRACE("No typeid entry found\n" );
    HeapFree( GetProcessHeap(), 0, resTab );
    return FALSE;

 found_type:
    nameInfo = (NE_NAMEINFO *)(typeInfo + 1);

    for (count = typeInfo->count; count > 0; count--, nameInfo++)
        if (nameInfo->id == resid) goto found_name;

    TRACE("No resid entry found\n" );
    HeapFree( GetProcessHeap(), 0, resTab );
    return FALSE;

 found_name:
    /* Return resource data */
    if ( resLen ) *resLen = nameInfo->length << *(WORD *)resTab;
    if ( resOff ) *resOff = nameInfo->offset << *(WORD *)resTab;

    HeapFree( GetProcessHeap(), 0, resTab );
    return TRUE;
}

/***********************************************************************
 *           find_pe_resource         [internal]
 */
static BOOL find_pe_resource( HFILE lzfd, DWORD *resLen, DWORD *resOff )
{
    union
    {
        IMAGE_NT_HEADERS32 nt32;
        IMAGE_NT_HEADERS64 nt64;
    } pehd;
    DWORD pehdoffset;
    PIMAGE_DATA_DIRECTORY resDataDir;
    PIMAGE_SECTION_HEADER sections;
    LPBYTE resSection;
    DWORD section_size, data_size;
    const void *resDir;
    const IMAGE_RESOURCE_DIRECTORY *resPtr;
    const IMAGE_RESOURCE_DATA_ENTRY *resData;
    int i, len, nSections;
    BOOL ret = FALSE;

    /* Read in PE header */
    pehdoffset = LZSeek( lzfd, 0, SEEK_CUR );
    len = LZRead( lzfd, (LPSTR)&pehd, sizeof(pehd) );
    if (len < sizeof(pehd.nt32.FileHeader)) return 0;
    if (len < sizeof(pehd)) memset( (char *)&pehd + len, 0, sizeof(pehd) - len );

    switch (pehd.nt32.OptionalHeader.Magic)
    {
    case IMAGE_NT_OPTIONAL_HDR32_MAGIC:
        resDataDir = pehd.nt32.OptionalHeader.DataDirectory + IMAGE_DIRECTORY_ENTRY_RESOURCE;
        break;
    case IMAGE_NT_OPTIONAL_HDR64_MAGIC:
        resDataDir = pehd.nt64.OptionalHeader.DataDirectory + IMAGE_DIRECTORY_ENTRY_RESOURCE;
        break;
    default:
        return 0;
    }

    if ( !resDataDir->Size )
    {
        TRACE("No resources in PE dll\n" );
        return FALSE;
    }

    /* Read in section table */
    nSections = pehd.nt32.FileHeader.NumberOfSections;
    sections = HeapAlloc( GetProcessHeap(), 0,
                          nSections * sizeof(IMAGE_SECTION_HEADER) );
    if ( !sections ) return FALSE;

    len = FIELD_OFFSET( IMAGE_NT_HEADERS32, OptionalHeader ) + pehd.nt32.FileHeader.SizeOfOptionalHeader;
    LZSeek( lzfd, pehdoffset + len, SEEK_SET );

    if ( nSections * sizeof(IMAGE_SECTION_HEADER) !=
         LZRead( lzfd, (LPSTR)sections, nSections * sizeof(IMAGE_SECTION_HEADER) ) )
    {
        HeapFree( GetProcessHeap(), 0, sections );
        return FALSE;
    }

    /* Find resource section */
    for ( i = 0; i < nSections; i++ )
        if (    resDataDir->VirtualAddress >= sections[i].VirtualAddress
             && resDataDir->VirtualAddress <  sections[i].VirtualAddress +
                                              sections[i].SizeOfRawData )
            break;

    if ( i == nSections )
    {
        HeapFree( GetProcessHeap(), 0, sections );
        TRACE("Couldn't find resource section\n" );
        return FALSE;
    }

    /* Read in resource section */
    data_size = sections[i].SizeOfRawData;
    section_size = max( data_size, sections[i].Misc.VirtualSize );
    resSection = HeapAlloc( GetProcessHeap(), 0, section_size );
    if ( !resSection )
    {
        HeapFree( GetProcessHeap(), 0, sections );
        return FALSE;
    }

    LZSeek( lzfd, sections[i].PointerToRawData, SEEK_SET );
    if (data_size != LZRead( lzfd, (char*)resSection, data_size )) goto done;
    if (data_size < section_size) memset( (char *)resSection + data_size, 0, section_size - data_size );

    /* Find resource */
    resDir = resSection + (resDataDir->VirtualAddress - sections[i].VirtualAddress);

    resPtr = resDir;
    resPtr = find_entry_by_id( resPtr, VS_FILE_INFO, resDir );
    if ( !resPtr )
    {
        TRACE("No typeid entry found\n" );
        goto done;
    }
    resPtr = find_entry_by_id( resPtr, VS_VERSION_INFO, resDir );
    if ( !resPtr )
    {
        TRACE("No resid entry found\n" );
        goto done;
    }
    resPtr = find_entry_default( resPtr, resDir );
    if ( !resPtr )
    {
        TRACE("No default language entry found\n" );
        goto done;
    }

    /* Find resource data section */
    resData = (const IMAGE_RESOURCE_DATA_ENTRY*)resPtr;
    for ( i = 0; i < nSections; i++ )
        if (    resData->OffsetToData >= sections[i].VirtualAddress
             && resData->OffsetToData <  sections[i].VirtualAddress +
                                         sections[i].SizeOfRawData )
            break;

    if ( i == nSections )
    {
        TRACE("Couldn't find resource data section\n" );
        goto done;
    }

    /* Return resource data */
    if ( resLen ) *resLen = resData->Size;
    if ( resOff ) *resOff = resData->OffsetToData - sections[i].VirtualAddress
                            + sections[i].PointerToRawData;
    ret = TRUE;

 done:
    HeapFree( GetProcessHeap(), 0, resSection );
    HeapFree( GetProcessHeap(), 0, sections );
    return ret;
}


/***********************************************************************
 *           find_version_resource         [internal]
 */
static DWORD find_version_resource( HFILE lzfd, DWORD *reslen, DWORD *offset )
{
    DWORD magic = read_xx_header( lzfd );

    switch (magic)
    {
    case IMAGE_OS2_SIGNATURE:
        if (!find_ne_resource( lzfd, reslen, offset )) magic = 0;
        break;
    case IMAGE_NT_SIGNATURE:
        if (!find_pe_resource( lzfd, reslen, offset )) magic = 0;
        break;
    }
    return magic;
}

/******************************************************************************
 *
 *   This function will print via standard TRACE, debug info regarding
 *   the file info structure vffi.
 *      15-Feb-1998 Dimitrie Paun (dimi@cs.toronto.edu)
 *      Added this function to clean up the code.
 *
 *****************************************************************************/
static void print_vffi_debug(const VS_FIXEDFILEINFO *vffi)
{
    BOOL    versioned_printer = FALSE;

    if((vffi->dwFileType == VFT_DLL) || (vffi->dwFileType == VFT_DRV))
    {
        if(vffi->dwFileSubtype == VFT2_DRV_VERSIONED_PRINTER)
            /* this is documented for newer w2k Drivers and up */
            versioned_printer = TRUE;
        else if( (vffi->dwFileSubtype == VFT2_DRV_PRINTER) &&
                 (vffi->dwFileVersionMS != vffi->dwProductVersionMS) &&
                 (vffi->dwFileVersionMS > 0) &&
                 (vffi->dwFileVersionMS <= 3) )
            /* found this on NT 3.51, NT4.0 and old w2k Drivers */
            versioned_printer = TRUE;
    }

    TRACE("structversion=%u.%u, ",
            HIWORD(vffi->dwStrucVersion),LOWORD(vffi->dwStrucVersion));
    if(versioned_printer)
    {
        WORD mode = LOWORD(vffi->dwFileVersionMS);
        WORD ver_rev = HIWORD(vffi->dwFileVersionLS);
        TRACE("fileversion=%u.%u.%u.%u (%s.major.minor.release), ",
            (vffi->dwFileVersionMS),
            HIBYTE(ver_rev), LOBYTE(ver_rev), LOWORD(vffi->dwFileVersionLS),
            (mode == 3) ? "Usermode" : ((mode <= 2) ? "Kernelmode" : "?") );
    }
    else
    {
        TRACE("fileversion=%u.%u.%u.%u, ",
            HIWORD(vffi->dwFileVersionMS),LOWORD(vffi->dwFileVersionMS),
            HIWORD(vffi->dwFileVersionLS),LOWORD(vffi->dwFileVersionLS));
    }
    TRACE("productversion=%u.%u.%u.%u\n",
          HIWORD(vffi->dwProductVersionMS),LOWORD(vffi->dwProductVersionMS),
          HIWORD(vffi->dwProductVersionLS),LOWORD(vffi->dwProductVersionLS));

    TRACE("flagmask=0x%x, flags=0x%x %s%s%s%s%s%s\n",
          vffi->dwFileFlagsMask, vffi->dwFileFlags,
          (vffi->dwFileFlags & VS_FF_DEBUG) ? "DEBUG," : "",
          (vffi->dwFileFlags & VS_FF_PRERELEASE) ? "PRERELEASE," : "",
          (vffi->dwFileFlags & VS_FF_PATCHED) ? "PATCHED," : "",
          (vffi->dwFileFlags & VS_FF_PRIVATEBUILD) ? "PRIVATEBUILD," : "",
          (vffi->dwFileFlags & VS_FF_INFOINFERRED) ? "INFOINFERRED," : "",
          (vffi->dwFileFlags & VS_FF_SPECIALBUILD) ? "SPECIALBUILD," : "");

    TRACE("(");

    TRACE("OS=0x%x.0x%x ", HIWORD(vffi->dwFileOS), LOWORD(vffi->dwFileOS));

    switch (vffi->dwFileOS&0xFFFF0000)
    {
    case VOS_DOS:TRACE("DOS,");break;
    case VOS_OS216:TRACE("OS/2-16,");break;
    case VOS_OS232:TRACE("OS/2-32,");break;
    case VOS_NT:TRACE("NT,");break;
    case VOS_UNKNOWN:
    default:
        TRACE("UNKNOWN(0x%x),",vffi->dwFileOS&0xFFFF0000);break;
    }

    switch (LOWORD(vffi->dwFileOS))
    {
    case VOS__BASE:TRACE("BASE");break;
    case VOS__WINDOWS16:TRACE("WIN16");break;
    case VOS__WINDOWS32:TRACE("WIN32");break;
    case VOS__PM16:TRACE("PM16");break;
    case VOS__PM32:TRACE("PM32");break;
    default:
        TRACE("UNKNOWN(0x%x)",LOWORD(vffi->dwFileOS));break;
    }

    TRACE(")\n");

    switch (vffi->dwFileType)
    {
    case VFT_APP:TRACE("filetype=APP");break;
    case VFT_DLL:
        TRACE("filetype=DLL");
        if(vffi->dwFileSubtype != 0)
        {
            if(versioned_printer) /* NT3.x/NT4.0 or old w2k Driver  */
                TRACE(",PRINTER");
            TRACE(" (subtype=0x%x)", vffi->dwFileSubtype);
        }
        break;
    case VFT_DRV:
        TRACE("filetype=DRV,");
        switch(vffi->dwFileSubtype)
        {
        case VFT2_DRV_PRINTER:TRACE("PRINTER");break;
        case VFT2_DRV_KEYBOARD:TRACE("KEYBOARD");break;
        case VFT2_DRV_LANGUAGE:TRACE("LANGUAGE");break;
        case VFT2_DRV_DISPLAY:TRACE("DISPLAY");break;
        case VFT2_DRV_MOUSE:TRACE("MOUSE");break;
        case VFT2_DRV_NETWORK:TRACE("NETWORK");break;
        case VFT2_DRV_SYSTEM:TRACE("SYSTEM");break;
        case VFT2_DRV_INSTALLABLE:TRACE("INSTALLABLE");break;
        case VFT2_DRV_SOUND:TRACE("SOUND");break;
        case VFT2_DRV_COMM:TRACE("COMM");break;
        case VFT2_DRV_INPUTMETHOD:TRACE("INPUTMETHOD");break;
        case VFT2_DRV_VERSIONED_PRINTER:TRACE("VERSIONED_PRINTER");break;
        case VFT2_UNKNOWN:
        default:
            TRACE("UNKNOWN(0x%x)",vffi->dwFileSubtype);break;
        }
        break;
    case VFT_FONT:
        TRACE("filetype=FONT,");
        switch (vffi->dwFileSubtype)
        {
        case VFT2_FONT_RASTER:TRACE("RASTER");break;
        case VFT2_FONT_VECTOR:TRACE("VECTOR");break;
        case VFT2_FONT_TRUETYPE:TRACE("TRUETYPE");break;
        default:TRACE("UNKNOWN(0x%x)",vffi->dwFileSubtype);break;
        }
        break;
    case VFT_VXD:TRACE("filetype=VXD");break;
    case VFT_STATIC_LIB:TRACE("filetype=STATIC_LIB");break;
    case VFT_UNKNOWN:
    default:
        TRACE("filetype=Unknown(0x%x)",vffi->dwFileType);break;
    }

    TRACE("\n");
    TRACE("filedate=0x%x.0x%x\n",vffi->dwFileDateMS,vffi->dwFileDateLS);
}

/***********************************************************************
 * Version Info Structure
 */

typedef struct
{
    WORD  wLength;
    WORD  wValueLength;
    CHAR  szKey[1];
#if 0   /* variable length structure */
    /* DWORD aligned */
    BYTE  Value[];
    /* DWORD aligned */
    VS_VERSION_INFO_STRUCT16 Children[];
#endif
} VS_VERSION_INFO_STRUCT16;

typedef struct
{
    WORD  wLength;
    WORD  wValueLength;
    WORD  wType;
    WCHAR szKey[1];
#if 0   /* variable length structure */
    /* DWORD aligned */
    BYTE  Value[];
    /* DWORD aligned */
    VS_VERSION_INFO_STRUCT32 Children[];
#endif
} VS_VERSION_INFO_STRUCT32;

#define VersionInfoIs16( ver ) \
    ( ((const VS_VERSION_INFO_STRUCT16 *)ver)->szKey[0] >= ' ' )

#define DWORD_ALIGN( base, ptr ) \
    ( (LPBYTE)(base) + ((((LPBYTE)(ptr) - (LPBYTE)(base)) + 3) & ~3) )

#define VersionInfo16_Value( ver )  \
    DWORD_ALIGN( (ver), (ver)->szKey + strlen((ver)->szKey) + 1 )
#define VersionInfo32_Value( ver )  \
    DWORD_ALIGN( (ver), (ver)->szKey + strlenW((ver)->szKey) + 1 )

#define VersionInfo16_Children( ver )  \
    (const VS_VERSION_INFO_STRUCT16 *)( VersionInfo16_Value( ver ) + \
                           ( ( (ver)->wValueLength + 3 ) & ~3 ) )
#define VersionInfo32_Children( ver )  \
    (const VS_VERSION_INFO_STRUCT32 *)( VersionInfo32_Value( ver ) + \
                           ( ( (ver)->wValueLength * \
                               ((ver)->wType? 2 : 1) + 3 ) & ~3 ) )

#define VersionInfo16_Next( ver ) \
    (VS_VERSION_INFO_STRUCT16 *)( (LPBYTE)ver + (((ver)->wLength + 3) & ~3) )
#define VersionInfo32_Next( ver ) \
    (VS_VERSION_INFO_STRUCT32 *)( (LPBYTE)ver + (((ver)->wLength + 3) & ~3) )


/***********************************************************************
 *           GetFileVersionInfoSizeW         [VERSION.@]
 */
DWORD WINAPI GetFileVersionInfoSizeW( LPCWSTR filename, LPDWORD handle )
{
    DWORD len, offset, magic = 1;
    HFILE lzfd;
    HMODULE hModule;
    OFSTRUCT ofs;

    TRACE("(%s,%p)\n", debugstr_w(filename), handle );

    if (handle) *handle = 0;

    if (!filename)
    {
        SetLastError(ERROR_INVALID_PARAMETER);
        return 0;
    }
    if (!*filename)
    {
        SetLastError(ERROR_BAD_PATHNAME);
        return 0;
    }

    if ((lzfd = LZOpenFileW( (LPWSTR)filename, &ofs, OF_READ )) != HFILE_ERROR)
    {
        magic = find_version_resource( lzfd, &len, &offset );
        LZClose( lzfd );
    }

    if ((magic == 1) && (hModule = LoadLibraryExW( filename, 0, LOAD_LIBRARY_AS_DATAFILE )))
    {
        HRSRC hRsrc = FindResourceW( hModule, MAKEINTRESOURCEW(VS_VERSION_INFO),
                                     MAKEINTRESOURCEW(VS_FILE_INFO) );
        if (hRsrc)
        {
            magic = IMAGE_NT_SIGNATURE;
            len = SizeofResource( hModule, hRsrc );
        }
        FreeLibrary( hModule );
    }

    switch (magic)
    {
    case IMAGE_OS2_SIGNATURE:
        /* We have a 16bit resource.
         *
         * XP/W2K/W2K3 uses a buffer which is more than the actual needed space:
         *
         * (info->wLength - sizeof(VS_FIXEDFILEINFO)) * 4
         *
         * This extra buffer is used for ANSI to Unicode conversions in W-Calls.
         * info->wLength should be the same as len. Currently it isn't but that
         * doesn't seem to be a problem (len is bigger than info->wLength).
         */
        SetLastError(0);
        return (len - sizeof(VS_FIXEDFILEINFO)) * 4;

    case IMAGE_NT_SIGNATURE:
        /* We have a 32bit resource.
         *
         * XP/W2K/W2K3 uses a buffer which is 2 times the actual needed space + 4 bytes "FE2X"
         * This extra buffer is used for Unicode to ANSI conversions in A-Calls
         */
        SetLastError(0);
        return (len * 2) + 4;

    default:
        SetLastError( lzfd == HFILE_ERROR ? ofs.nErrCode : ERROR_RESOURCE_DATA_NOT_FOUND );
        return 0;
    }
}

/***********************************************************************
 *           GetFileVersionInfoSizeA         [VERSION.@]
 */
DWORD WINAPI GetFileVersionInfoSizeA( LPCSTR filename, LPDWORD handle )
{
    UNICODE_STRING filenameW;
    DWORD retval;

    TRACE("(%s,%p)\n", debugstr_a(filename), handle );

    if(filename)
        RtlCreateUnicodeStringFromAsciiz(&filenameW, filename);
    else
        filenameW.Buffer = NULL;

    retval = GetFileVersionInfoSizeW(filenameW.Buffer, handle);

    RtlFreeUnicodeString(&filenameW);

    return retval;
}

/***********************************************************************
 *           GetFileVersionInfoW             [VERSION.@]
 */
BOOL WINAPI GetFileVersionInfoW( LPCWSTR filename, DWORD handle,
                                    DWORD datasize, LPVOID data )
{
    static const char signature[4] = "FE2X";
    DWORD len, offset, magic = 1;
    HFILE lzfd;
    OFSTRUCT ofs;
    HMODULE hModule;
    VS_VERSION_INFO_STRUCT32* vvis = data;

    TRACE("(%s,%d,size=%d,data=%p)\n",
                debugstr_w(filename), handle, datasize, data );

    if (!data)
    {
        SetLastError(ERROR_INVALID_DATA);
        return FALSE;
    }

    if ((lzfd = LZOpenFileW( (LPWSTR)filename, &ofs, OF_READ )) != HFILE_ERROR)
    {
        if ((magic = find_version_resource( lzfd, &len, &offset )) > 1)
        {
            LZSeek( lzfd, offset, 0 /* SEEK_SET */ );
            len = LZRead( lzfd, data, min( len, datasize ) );
        }
        LZClose( lzfd );
    }

    if ((magic == 1) && (hModule = LoadLibraryExW( filename, 0, LOAD_LIBRARY_AS_DATAFILE )))
    {
        HRSRC hRsrc = FindResourceW( hModule, MAKEINTRESOURCEW(VS_VERSION_INFO),
                                     MAKEINTRESOURCEW(VS_FILE_INFO) );
        if (hRsrc)
        {
            HGLOBAL hMem = LoadResource( hModule, hRsrc );
            magic = IMAGE_NT_SIGNATURE;
            len = min( SizeofResource(hModule, hRsrc), datasize );
            memcpy( data, LockResource( hMem ), len );
            FreeResource( hMem );
        }
        FreeLibrary( hModule );
    }

    switch (magic)
    {
    case IMAGE_OS2_SIGNATURE:
        /* We have a 16bit resource. */
        if (TRACE_ON(ver))
            print_vffi_debug( (VS_FIXEDFILEINFO *)VersionInfo16_Value( (VS_VERSION_INFO_STRUCT16 *)data ));
        SetLastError(0);
        return TRUE;

    case IMAGE_NT_SIGNATURE:
        /* We have a 32bit resource.
         *
         * XP/W2K/W2K3 uses a buffer which is 2 times the actual needed space + 4 bytes "FE2X"
         * This extra buffer is used for Unicode to ANSI conversions in A-Calls
         */
        len = vvis->wLength + sizeof(signature);
        if (datasize >= len) memcpy( (char*)data + vvis->wLength, signature, sizeof(signature) );
        if (TRACE_ON(ver))
            print_vffi_debug( (VS_FIXEDFILEINFO *)VersionInfo32_Value( vvis ));
        SetLastError(0);
        return TRUE;

    default:
        SetLastError( lzfd == HFILE_ERROR ? ofs.nErrCode : ERROR_RESOURCE_DATA_NOT_FOUND );
        return FALSE;
    }
}

/***********************************************************************
 *           GetFileVersionInfoA             [VERSION.@]
 */
BOOL WINAPI GetFileVersionInfoA( LPCSTR filename, DWORD handle,
                                    DWORD datasize, LPVOID data )
{
    UNICODE_STRING filenameW;
    BOOL retval;

    TRACE("(%s,%d,size=%d,data=%p)\n",
                debugstr_a(filename), handle, datasize, data );

    if(filename)
        RtlCreateUnicodeStringFromAsciiz(&filenameW, filename);
    else
        filenameW.Buffer = NULL;

    retval = GetFileVersionInfoW(filenameW.Buffer, handle, datasize, data);

    RtlFreeUnicodeString(&filenameW);

    return retval;
}

/***********************************************************************
 *           VersionInfo16_FindChild             [internal]
 */
static const VS_VERSION_INFO_STRUCT16 *VersionInfo16_FindChild( const VS_VERSION_INFO_STRUCT16 *info,
                                            LPCSTR szKey, UINT cbKey )
{
    const VS_VERSION_INFO_STRUCT16 *child = VersionInfo16_Children( info );

    while ((char *)child < (char *)info + info->wLength )
    {
        if (!strncasecmp( child->szKey, szKey, cbKey ) && !child->szKey[cbKey])
            return child;

	if (!(child->wLength)) return NULL;
        child = VersionInfo16_Next( child );
    }

    return NULL;
}

/***********************************************************************
 *           VersionInfo32_FindChild             [internal]
 */
static const VS_VERSION_INFO_STRUCT32 *VersionInfo32_FindChild( const VS_VERSION_INFO_STRUCT32 *info,
                                            LPCWSTR szKey, UINT cbKey )
{
    const VS_VERSION_INFO_STRUCT32 *child = VersionInfo32_Children( info );

    while ((char *)child < (char *)info + info->wLength )
    {
        if (!strncmpiW( child->szKey, szKey, cbKey ) && !child->szKey[cbKey])
            return child;

        if (!(child->wLength)) return NULL;
        child = VersionInfo32_Next( child );
    }

    return NULL;
}

/***********************************************************************
 *           VersionInfo16_QueryValue              [internal]
 *
 *    Gets a value from a 16-bit NE resource
 */
static BOOL VersionInfo16_QueryValue( const VS_VERSION_INFO_STRUCT16 *info, LPCSTR lpSubBlock,
                               LPVOID *lplpBuffer, UINT *puLen )
{
    while ( *lpSubBlock )
    {
        /* Find next path component */
        LPCSTR lpNextSlash;
        for ( lpNextSlash = lpSubBlock; *lpNextSlash; lpNextSlash++ )
            if ( *lpNextSlash == '\\' )
                break;

        /* Skip empty components */
        if ( lpNextSlash == lpSubBlock )
        {
            lpSubBlock++;
            continue;
        }

        /* We have a non-empty component: search info for key */
        info = VersionInfo16_FindChild( info, lpSubBlock, lpNextSlash-lpSubBlock );
        if ( !info )
        {
            if (puLen) *puLen = 0 ;
            SetLastError( ERROR_RESOURCE_TYPE_NOT_FOUND );
            return FALSE;
        }

        /* Skip path component */
        lpSubBlock = lpNextSlash;
    }

    /* Return value */
    *lplpBuffer = VersionInfo16_Value( info );
    if (puLen)
        *puLen = info->wValueLength;

    return TRUE;
}

/***********************************************************************
 *           VersionInfo32_QueryValue              [internal]
 *
 *    Gets a value from a 32-bit PE resource
 */
static BOOL VersionInfo32_QueryValue( const VS_VERSION_INFO_STRUCT32 *info, LPCWSTR lpSubBlock,
                               LPVOID *lplpBuffer, UINT *puLen )
{
    TRACE("lpSubBlock : (%s)\n", debugstr_w(lpSubBlock));

    while ( *lpSubBlock )
    {
        /* Find next path component */
        LPCWSTR lpNextSlash;
        for ( lpNextSlash = lpSubBlock; *lpNextSlash; lpNextSlash++ )
            if ( *lpNextSlash == '\\' )
                break;

        /* Skip empty components */
        if ( lpNextSlash == lpSubBlock )
        {
            lpSubBlock++;
            continue;
        }

        /* We have a non-empty component: search info for key */
        info = VersionInfo32_FindChild( info, lpSubBlock, lpNextSlash-lpSubBlock );
        if ( !info )
        {
            if (puLen) *puLen = 0 ;
            SetLastError( ERROR_RESOURCE_TYPE_NOT_FOUND );
            return FALSE;
        }

        /* Skip path component */
        lpSubBlock = lpNextSlash;
    }

    /* Return value */
    *lplpBuffer = VersionInfo32_Value( info );
    if (puLen)
        *puLen = info->wValueLength;

    return TRUE;
}

/***********************************************************************
 *           VerQueryValueA              [VERSION.@]
 */
BOOL WINAPI VerQueryValueA( LPCVOID pBlock, LPCSTR lpSubBlock,
                               LPVOID *lplpBuffer, PUINT puLen )
{
    static const char rootA[] = "\\";
    static const char varfileinfoA[] = "\\VarFileInfo\\Translation";
    const VS_VERSION_INFO_STRUCT16 *info = pBlock;

    TRACE("(%p,%s,%p,%p)\n",
                pBlock, debugstr_a(lpSubBlock), lplpBuffer, puLen );

     if (!pBlock)
        return FALSE;

    if (lpSubBlock == NULL || lpSubBlock[0] == '\0')
        lpSubBlock = rootA;

    if ( !VersionInfoIs16( info ) )
    {
        BOOL ret;
        INT len;
        LPWSTR lpSubBlockW;

        len  = MultiByteToWideChar(CP_ACP, 0, lpSubBlock, -1, NULL, 0);
        lpSubBlockW = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));

        if (!lpSubBlockW)
            return FALSE;

        MultiByteToWideChar(CP_ACP, 0, lpSubBlock, -1, lpSubBlockW, len);

        ret = VersionInfo32_QueryValue(pBlock, lpSubBlockW, lplpBuffer, puLen);

        HeapFree(GetProcessHeap(), 0, lpSubBlockW);

        if (ret && strcasecmp( lpSubBlock, rootA ) && strcasecmp( lpSubBlock, varfileinfoA ))
        {
            /* Set lpBuffer so it points to the 'empty' area where we store
             * the converted strings
             */
            LPSTR lpBufferA = (LPSTR)pBlock + info->wLength + 4;
            DWORD pos = (LPCSTR)*lplpBuffer - (LPCSTR)pBlock;

            len = WideCharToMultiByte(CP_ACP, 0, *lplpBuffer, -1,
                                      lpBufferA + pos, info->wLength - pos, NULL, NULL);
            *lplpBuffer = lpBufferA + pos;
            *puLen = len;
        }
        return ret;
    }

    return VersionInfo16_QueryValue(info, lpSubBlock, lplpBuffer, puLen);
}

/***********************************************************************
 *           VerQueryValueW              [VERSION.@]
 */
BOOL WINAPI VerQueryValueW( LPCVOID pBlock, LPCWSTR lpSubBlock,
                               LPVOID *lplpBuffer, PUINT puLen )
{
    static const WCHAR nullW[] = { 0 };
    static const WCHAR rootW[] = { '\\', 0 };
    static const WCHAR varfileinfoW[] = { '\\','V','a','r','F','i','l','e','I','n','f','o',
                                          '\\','T','r','a','n','s','l','a','t','i','o','n', 0 };

    const VS_VERSION_INFO_STRUCT32 *info = pBlock;

    TRACE("(%p,%s,%p,%p)\n",
                pBlock, debugstr_w(lpSubBlock), lplpBuffer, puLen );

    if (!pBlock)
        return FALSE;

    if (lpSubBlock == NULL || lpSubBlock[0] == nullW[0])
        lpSubBlock = rootW;

    if ( VersionInfoIs16( info ) )
    {
        BOOL ret;
        int len;
        LPSTR lpSubBlockA;

        len = WideCharToMultiByte(CP_ACP, 0, lpSubBlock, -1, NULL, 0, NULL, NULL);
        lpSubBlockA = HeapAlloc(GetProcessHeap(), 0, len * sizeof(char));

        if (!lpSubBlockA)
            return FALSE;

        WideCharToMultiByte(CP_ACP, 0, lpSubBlock, -1, lpSubBlockA, len, NULL, NULL);

        ret = VersionInfo16_QueryValue(pBlock, lpSubBlockA, lplpBuffer, puLen);

        HeapFree(GetProcessHeap(), 0, lpSubBlockA);

        if (ret && strcmpiW( lpSubBlock, rootW ) && strcmpiW( lpSubBlock, varfileinfoW ))
        {
            /* Set lpBuffer so it points to the 'empty' area where we store
             * the converted strings
             */
            LPWSTR lpBufferW = (LPWSTR)((LPSTR)pBlock + info->wLength);
            DWORD pos = (LPCSTR)*lplpBuffer - (LPCSTR)pBlock;
            DWORD max = (info->wLength - sizeof(VS_FIXEDFILEINFO)) * 4 - info->wLength;

            len = MultiByteToWideChar(CP_ACP, 0, *lplpBuffer, -1,
                                      lpBufferW + pos, max/sizeof(WCHAR) - pos );
            *lplpBuffer = lpBufferW + pos;
            *puLen = len;
        }
        return ret;
    }

    return VersionInfo32_QueryValue(info, lpSubBlock, lplpBuffer, puLen);
}


/******************************************************************************
 *   testFileExistenceA
 *
 *   Tests whether a given path/file combination exists.  If the file does
 *   not exist, the return value is zero.  If it does exist, the return
 *   value is non-zero.
 *
 *   Revision history
 *      30-May-1997 Dave Cuthbert (dacut@ece.cmu.edu)
 *         Original implementation
 *
 */
static int testFileExistenceA( char const * path, char const * file, BOOL excl )
{
    char  filename[1024];
    int  filenamelen;
    OFSTRUCT  fileinfo;

    fileinfo.cBytes = sizeof(OFSTRUCT);

    strcpy(filename, path);
    filenamelen = strlen(filename);

    /* Add a trailing \ if necessary */
    if(filenamelen) {
	if(filename[filenamelen - 1] != '\\')
	    strcat(filename, "\\");
    }
    else /* specify the current directory */
	strcpy(filename, ".\\");

    /* Create the full pathname */
    strcat(filename, file);

    return (OpenFile(filename, &fileinfo,
                     OF_EXIST | (excl ? OF_SHARE_EXCLUSIVE : 0)) != HFILE_ERROR);
}

/******************************************************************************
 *   testFileExistenceW
 */
static int testFileExistenceW( const WCHAR *path, const WCHAR *file, BOOL excl )
{
    char *filename;
    DWORD pathlen, filelen;
    int ret;
    OFSTRUCT fileinfo;

    fileinfo.cBytes = sizeof(OFSTRUCT);

    pathlen = WideCharToMultiByte( CP_ACP, 0, path, -1, NULL, 0, NULL, NULL );
    filelen = WideCharToMultiByte( CP_ACP, 0, file, -1, NULL, 0, NULL, NULL );
    filename = HeapAlloc( GetProcessHeap(), 0, pathlen+filelen+2 );

    WideCharToMultiByte( CP_ACP, 0, path, -1, filename, pathlen, NULL, NULL );
    /* Add a trailing \ if necessary */
    if (pathlen > 1)
    {
        if (filename[pathlen-2] != '\\') strcpy( &filename[pathlen-1], "\\" );
    }
    else /* specify the current directory */
        strcpy(filename, ".\\");

    WideCharToMultiByte( CP_ACP, 0, file, -1, filename+strlen(filename), filelen, NULL, NULL );

    ret = (OpenFile(filename, &fileinfo,
                    OF_EXIST | (excl ? OF_SHARE_EXCLUSIVE : 0)) != HFILE_ERROR);
    HeapFree( GetProcessHeap(), 0, filename );
    return ret;
}

/*****************************************************************************
 *   VerFindFileA [VERSION.@]
 *
 *   Determines where to install a file based on whether it locates another
 *   version of the file in the system.  The values VerFindFile returns are
 *   used in a subsequent call to the VerInstallFile function.
 *
 *   Revision history:
 *      30-May-1997   Dave Cuthbert (dacut@ece.cmu.edu)
 *         Reimplementation of VerFindFile from original stub.
 */
DWORD WINAPI VerFindFileA(
    DWORD flags,
    LPCSTR lpszFilename,
    LPCSTR lpszWinDir,
    LPCSTR lpszAppDir,
    LPSTR lpszCurDir,
    PUINT lpuCurDirLen,
    LPSTR lpszDestDir,
    PUINT lpuDestDirLen )
{
    DWORD  retval = 0;
    const char *curDir;
    const char *destDir;
    unsigned int  curDirSizeReq;
    unsigned int  destDirSizeReq;
1104
    char winDir[MAX_PATH], systemDir[MAX_PATH];
1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134

    /* Print out debugging information */
    TRACE("flags = %x filename=%s windir=%s appdir=%s curdirlen=%p(%u) destdirlen=%p(%u)\n",
          flags, debugstr_a(lpszFilename), debugstr_a(lpszWinDir), debugstr_a(lpszAppDir),
          lpuCurDirLen, lpuCurDirLen ? *lpuCurDirLen : 0,
          lpuDestDirLen, lpuDestDirLen ? *lpuDestDirLen : 0 );

    /* Figure out where the file should go; shared files default to the
       system directory */

    GetSystemDirectoryA(systemDir, sizeof(systemDir));
    curDir = "";
    destDir = "";

    if(flags & VFFF_ISSHAREDFILE)
    {
        destDir = systemDir;
        /* Were we given a filename?  If so, try to find the file. */
        if(lpszFilename)
        {
            if(testFileExistenceA(destDir, lpszFilename, FALSE)) curDir = destDir;
            else if(lpszAppDir && testFileExistenceA(lpszAppDir, lpszFilename, FALSE))
            {
                curDir = lpszAppDir;
                retval |= VFF_CURNEDEST;
            }
        }
    }
    else /* not a shared file */
    {
1135 1136
        destDir = lpszAppDir ? lpszAppDir : "";
        if(lpszFilename)
1137
        {
1138 1139 1140 1141 1142 1143 1144 1145
            GetWindowsDirectoryA( winDir, MAX_PATH );
            if(testFileExistenceA(destDir, lpszFilename, FALSE)) curDir = destDir;
            else if(testFileExistenceA(winDir, lpszFilename, FALSE))
            {
                curDir = winDir;
                retval |= VFF_CURNEDEST;
            }
            else if(testFileExistenceA(systemDir, lpszFilename, FALSE))
1146
            {
1147 1148
                curDir = systemDir;
                retval |= VFF_CURNEDEST;
1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200
            }
        }
    }

    /* Check to see if the file exists and is in use by another application */
    if (lpszFilename && testFileExistenceA(curDir, lpszFilename, FALSE)) {
        if (lpszFilename && !testFileExistenceA(curDir, lpszFilename, TRUE))
           retval |= VFF_FILEINUSE;
    }

    curDirSizeReq = strlen(curDir) + 1;
    destDirSizeReq = strlen(destDir) + 1;

    /* Make sure that the pointers to the size of the buffers are
       valid; if not, do NOTHING with that buffer.  If that pointer
       is valid, then make sure that the buffer pointer is valid, too! */

    if(lpuDestDirLen && lpszDestDir)
    {
        if (*lpuDestDirLen < destDirSizeReq) retval |= VFF_BUFFTOOSMALL;
        lstrcpynA(lpszDestDir, destDir, *lpuDestDirLen);
        *lpuDestDirLen = destDirSizeReq;
    }
    if(lpuCurDirLen && lpszCurDir)
    {
        if(*lpuCurDirLen < curDirSizeReq) retval |= VFF_BUFFTOOSMALL;
        lstrcpynA(lpszCurDir, curDir, *lpuCurDirLen);
        *lpuCurDirLen = curDirSizeReq;
    }

    TRACE("ret = %u (%s%s%s) curdir=%s destdir=%s\n", retval,
          (retval & VFF_CURNEDEST) ? "VFF_CURNEDEST " : "",
          (retval & VFF_FILEINUSE) ? "VFF_FILEINUSE " : "",
          (retval & VFF_BUFFTOOSMALL) ? "VFF_BUFFTOOSMALL " : "",
          debugstr_a(lpszCurDir), debugstr_a(lpszDestDir));

    return retval;
}

/*****************************************************************************
 * VerFindFileW						[VERSION.@]
 */
DWORD WINAPI VerFindFileW( DWORD flags,LPCWSTR lpszFilename,LPCWSTR lpszWinDir,
                           LPCWSTR lpszAppDir, LPWSTR lpszCurDir,PUINT lpuCurDirLen,
                           LPWSTR lpszDestDir,PUINT lpuDestDirLen )
{
    static const WCHAR emptyW;
    DWORD retval = 0;
    const WCHAR *curDir;
    const WCHAR *destDir;
    unsigned int curDirSizeReq;
    unsigned int destDirSizeReq;
1201
    WCHAR winDir[MAX_PATH], systemDir[MAX_PATH];
1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231

    /* Print out debugging information */
    TRACE("flags = %x filename=%s windir=%s appdir=%s curdirlen=%p(%u) destdirlen=%p(%u)\n",
          flags, debugstr_w(lpszFilename), debugstr_w(lpszWinDir), debugstr_w(lpszAppDir),
          lpuCurDirLen, lpuCurDirLen ? *lpuCurDirLen : 0,
          lpuDestDirLen, lpuDestDirLen ? *lpuDestDirLen : 0 );

    /* Figure out where the file should go; shared files default to the
       system directory */

    GetSystemDirectoryW(systemDir, sizeof(systemDir)/sizeof(WCHAR));
    curDir = &emptyW;
    destDir = &emptyW;

    if(flags & VFFF_ISSHAREDFILE)
    {
        destDir = systemDir;
        /* Were we given a filename?  If so, try to find the file. */
        if(lpszFilename)
        {
            if(testFileExistenceW(destDir, lpszFilename, FALSE)) curDir = destDir;
            else if(lpszAppDir && testFileExistenceW(lpszAppDir, lpszFilename, FALSE))
            {
                curDir = lpszAppDir;
                retval |= VFF_CURNEDEST;
            }
        }
    }
    else /* not a shared file */
    {
1232 1233
        destDir = lpszAppDir ? lpszAppDir : &emptyW;
        if(lpszFilename)
1234
        {
1235 1236 1237 1238 1239 1240 1241 1242
            GetWindowsDirectoryW( winDir, MAX_PATH );
            if(testFileExistenceW(destDir, lpszFilename, FALSE)) curDir = destDir;
            else if(testFileExistenceW(winDir, lpszFilename, FALSE))
            {
                curDir = winDir;
                retval |= VFF_CURNEDEST;
            }
            else if(testFileExistenceW(systemDir, lpszFilename, FALSE))
1243
            {
1244 1245
                curDir = systemDir;
                retval |= VFF_CURNEDEST;
1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346
            }
        }
    }

    if (lpszFilename && !testFileExistenceW(curDir, lpszFilename, TRUE))
        retval |= VFF_FILEINUSE;

    curDirSizeReq = strlenW(curDir) + 1;
    destDirSizeReq = strlenW(destDir) + 1;

    /* Make sure that the pointers to the size of the buffers are
       valid; if not, do NOTHING with that buffer.  If that pointer
       is valid, then make sure that the buffer pointer is valid, too! */

    if(lpuDestDirLen && lpszDestDir)
    {
        if (*lpuDestDirLen < destDirSizeReq) retval |= VFF_BUFFTOOSMALL;
        lstrcpynW(lpszDestDir, destDir, *lpuDestDirLen);
        *lpuDestDirLen = destDirSizeReq;
    }
    if(lpuCurDirLen && lpszCurDir)
    {
        if(*lpuCurDirLen < curDirSizeReq) retval |= VFF_BUFFTOOSMALL;
        lstrcpynW(lpszCurDir, curDir, *lpuCurDirLen);
        *lpuCurDirLen = curDirSizeReq;
    }

    TRACE("ret = %u (%s%s%s) curdir=%s destdir=%s\n", retval,
          (retval & VFF_CURNEDEST) ? "VFF_CURNEDEST " : "",
          (retval & VFF_FILEINUSE) ? "VFF_FILEINUSE " : "",
          (retval & VFF_BUFFTOOSMALL) ? "VFF_BUFFTOOSMALL " : "",
          debugstr_w(lpszCurDir), debugstr_w(lpszDestDir));
    return retval;
}

static LPBYTE
_fetch_versioninfo(LPSTR fn,VS_FIXEDFILEINFO **vffi) {
    DWORD	alloclen;
    LPBYTE	buf;
    DWORD	ret;

    alloclen = 1000;
    buf=HeapAlloc(GetProcessHeap(), 0, alloclen);
    if(buf == NULL) {
        WARN("Memory exausted while fetching version info!\n");
        return NULL;
    }
    while (1) {
	ret = GetFileVersionInfoA(fn,0,alloclen,buf);
	if (!ret) {
	    HeapFree(GetProcessHeap(), 0, buf);
	    return NULL;
	}
	if (alloclen<*(WORD*)buf) {
	    alloclen = *(WORD*)buf;
	    HeapFree(GetProcessHeap(), 0, buf);
	    buf = HeapAlloc(GetProcessHeap(), 0, alloclen);
            if(buf == NULL) {
               WARN("Memory exausted while fetching version info!\n");
               return NULL;
            }
	} else {
	    *vffi = (VS_FIXEDFILEINFO*)(buf+0x14);
	    if ((*vffi)->dwSignature == 0x004f0049) /* hack to detect unicode */
		*vffi = (VS_FIXEDFILEINFO*)(buf+0x28);
	    if ((*vffi)->dwSignature != VS_FFI_SIGNATURE)
                WARN("Bad VS_FIXEDFILEINFO signature 0x%08x\n",(*vffi)->dwSignature);
	    return buf;
	}
    }
}

static DWORD
_error2vif(DWORD error) {
    switch (error) {
    case ERROR_ACCESS_DENIED:
	return VIF_ACCESSVIOLATION;
    case ERROR_SHARING_VIOLATION:
	return VIF_SHARINGVIOLATION;
    default:
	return 0;
    }
}


/******************************************************************************
 * VerInstallFileA [VERSION.@]
 */
DWORD WINAPI VerInstallFileA(
	DWORD flags,LPCSTR srcfilename,LPCSTR destfilename,LPCSTR srcdir,
	LPCSTR destdir,LPCSTR curdir,LPSTR tmpfile,PUINT tmpfilelen )
{
    LPCSTR pdest;
    char	destfn[260],tmpfn[260],srcfn[260];
    HFILE	hfsrc,hfdst;
    DWORD	attr,xret,tmplast;
    LONG	ret;
    LPBYTE	buf1,buf2;
    OFSTRUCT	ofs;

    TRACE("(%x,%s,%s,%s,%s,%s,%p,%d)\n",
1347 1348 1349
          flags,debugstr_a(srcfilename),debugstr_a(destfilename),
          debugstr_a(srcdir),debugstr_a(destdir),debugstr_a(curdir),
          tmpfile,*tmpfilelen);
1350
    xret = 0;
1351
    if (!srcdir || !srcfilename) return VIF_CANNOTREADSRC;
1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574
    sprintf(srcfn,"%s\\%s",srcdir,srcfilename);
    if (!destdir || !*destdir) pdest = srcdir;
    else pdest = destdir;
    sprintf(destfn,"%s\\%s",pdest,destfilename);
    hfsrc=LZOpenFileA(srcfn,&ofs,OF_READ);
    if (hfsrc < 0)
	return VIF_CANNOTREADSRC;
    sprintf(tmpfn,"%s\\%s",pdest,destfilename);
    tmplast=strlen(pdest)+1;
    attr = GetFileAttributesA(tmpfn);
    if (attr != INVALID_FILE_ATTRIBUTES) {
	if (attr & FILE_ATTRIBUTE_READONLY) {
	    LZClose(hfsrc);
	    return VIF_WRITEPROT;
	}
	/* FIXME: check if file currently in use and return VIF_FILEINUSE */
    }
    attr = INVALID_FILE_ATTRIBUTES;
    if (flags & VIFF_FORCEINSTALL) {
	if (tmpfile[0]) {
	    sprintf(tmpfn,"%s\\%s",pdest,tmpfile);
	    tmplast = strlen(pdest)+1;
	    attr = GetFileAttributesA(tmpfn);
	    /* if it exists, it has been copied by the call before.
	     * we jump over the copy part...
	     */
	}
    }
    if (attr == INVALID_FILE_ATTRIBUTES) {
	char	*s;

	GetTempFileNameA(pdest,"ver",0,tmpfn); /* should not fail ... */
	s=strrchr(tmpfn,'\\');
	if (s)
	    tmplast = s-tmpfn;
	else
	    tmplast = 0;
	hfdst = OpenFile(tmpfn,&ofs,OF_CREATE);
	if (hfdst == HFILE_ERROR) {
	    LZClose(hfsrc);
	    return VIF_CANNOTCREATE; /* | translated dos error */
	}
	ret = LZCopy(hfsrc,hfdst);
	_lclose(hfdst);
	if (ret < 0) {
	    /* translate LZ errors into VIF_xxx */
	    switch (ret) {
	    case LZERROR_BADINHANDLE:
	    case LZERROR_READ:
	    case LZERROR_BADVALUE:
	    case LZERROR_UNKNOWNALG:
		xret = VIF_CANNOTREADSRC;
		break;
	    case LZERROR_BADOUTHANDLE:
	    case LZERROR_WRITE:
		xret = VIF_OUTOFSPACE;
		break;
	    case LZERROR_GLOBALLOC:
	    case LZERROR_GLOBLOCK:
		xret = VIF_OUTOFMEMORY;
		break;
	    default: /* unknown error, should not happen */
		FIXME("Unknown LZCopy error %d, ignoring.\n", ret);
		xret = 0;
		break;
	    }
	    if (xret) {
		LZClose(hfsrc);
		return xret;
	    }
	}
    }
    if (!(flags & VIFF_FORCEINSTALL)) {
	VS_FIXEDFILEINFO *destvffi,*tmpvffi;
	buf1 = _fetch_versioninfo(destfn,&destvffi);
	if (buf1) {
	    buf2 = _fetch_versioninfo(tmpfn,&tmpvffi);
	    if (buf2) {
		char	*tbuf1,*tbuf2;
		static const CHAR trans_array[] = "\\VarFileInfo\\Translation";
		UINT	len1,len2;

		len1=len2=40;

		/* compare file versions */
		if ((destvffi->dwFileVersionMS > tmpvffi->dwFileVersionMS)||
		    ((destvffi->dwFileVersionMS==tmpvffi->dwFileVersionMS)&&
		     (destvffi->dwFileVersionLS > tmpvffi->dwFileVersionLS)
		    )
		)
		    xret |= VIF_MISMATCH|VIF_SRCOLD;
		/* compare filetypes and filesubtypes */
		if ((destvffi->dwFileType!=tmpvffi->dwFileType) ||
		    (destvffi->dwFileSubtype!=tmpvffi->dwFileSubtype)
		)
		    xret |= VIF_MISMATCH|VIF_DIFFTYPE;
		if (VerQueryValueA(buf1,trans_array,(LPVOID*)&tbuf1,&len1) &&
		    VerQueryValueA(buf2,trans_array,(LPVOID*)&tbuf2,&len2)
		) {
                    /* Do something with tbuf1 and tbuf2
		     * generates DIFFLANG|MISMATCH
		     */
		}
		HeapFree(GetProcessHeap(), 0, buf2);
	    } else
		xret=VIF_MISMATCH|VIF_SRCOLD;
	    HeapFree(GetProcessHeap(), 0, buf1);
	}
    }
    if (xret) {
	if (*tmpfilelen<strlen(tmpfn+tmplast)) {
	    xret|=VIF_BUFFTOOSMALL;
	    DeleteFileA(tmpfn);
	} else {
	    strcpy(tmpfile,tmpfn+tmplast);
	    *tmpfilelen = strlen(tmpfn+tmplast)+1;
	    xret|=VIF_TEMPFILE;
	}
    } else {
	if (INVALID_FILE_ATTRIBUTES!=GetFileAttributesA(destfn))
	    if (!DeleteFileA(destfn)) {
		xret|=_error2vif(GetLastError())|VIF_CANNOTDELETE;
		DeleteFileA(tmpfn);
		LZClose(hfsrc);
		return xret;
	    }
	if ((!(flags & VIFF_DONTDELETEOLD))	&&
	    curdir				&&
	    *curdir				&&
	    lstrcmpiA(curdir,pdest)
	) {
	    char curfn[260];

	    sprintf(curfn,"%s\\%s",curdir,destfilename);
	    if (INVALID_FILE_ATTRIBUTES != GetFileAttributesA(curfn)) {
		/* FIXME: check if in use ... if it is, VIF_CANNOTDELETECUR */
		if (!DeleteFileA(curfn))
		    xret|=_error2vif(GetLastError())|VIF_CANNOTDELETECUR;
	    }
	}
	if (!MoveFileA(tmpfn,destfn)) {
	    xret|=_error2vif(GetLastError())|VIF_CANNOTRENAME;
	    DeleteFileA(tmpfn);
	}
    }
    LZClose(hfsrc);
    return xret;
}


/******************************************************************************
 * VerInstallFileW				[VERSION.@]
 */
DWORD WINAPI VerInstallFileW(
	DWORD flags,LPCWSTR srcfilename,LPCWSTR destfilename,LPCWSTR srcdir,
	LPCWSTR destdir,LPCWSTR curdir,LPWSTR tmpfile,PUINT tmpfilelen )
{
    LPSTR wsrcf = NULL, wsrcd = NULL, wdestf = NULL, wdestd = NULL, wtmpf = NULL, wcurd = NULL;
    DWORD ret = 0;
    UINT len;

    if (srcfilename)
    {
        len = WideCharToMultiByte( CP_ACP, 0, srcfilename, -1, NULL, 0, NULL, NULL );
        if ((wsrcf = HeapAlloc( GetProcessHeap(), 0, len )))
            WideCharToMultiByte( CP_ACP, 0, srcfilename, -1, wsrcf, len, NULL, NULL );
        else
            ret = VIF_OUTOFMEMORY;
    }
    if (srcdir && !ret)
    {
        len = WideCharToMultiByte( CP_ACP, 0, srcdir, -1, NULL, 0, NULL, NULL );
        if ((wsrcd = HeapAlloc( GetProcessHeap(), 0, len )))
            WideCharToMultiByte( CP_ACP, 0, srcdir, -1, wsrcd, len, NULL, NULL );
        else
            ret = VIF_OUTOFMEMORY;
    }
    if (destfilename && !ret)
    {
        len = WideCharToMultiByte( CP_ACP, 0, destfilename, -1, NULL, 0, NULL, NULL );
        if ((wdestf = HeapAlloc( GetProcessHeap(), 0, len )))
            WideCharToMultiByte( CP_ACP, 0, destfilename, -1, wdestf, len, NULL, NULL );
        else
            ret = VIF_OUTOFMEMORY;
    }
    if (destdir && !ret)
    {
        len = WideCharToMultiByte( CP_ACP, 0, destdir, -1, NULL, 0, NULL, NULL );
        if ((wdestd = HeapAlloc( GetProcessHeap(), 0, len )))
            WideCharToMultiByte( CP_ACP, 0, destdir, -1, wdestd, len, NULL, NULL );
        else
            ret = VIF_OUTOFMEMORY;
    }
    if (curdir && !ret)
    {
        len = WideCharToMultiByte( CP_ACP, 0, curdir, -1, NULL, 0, NULL, NULL );
        if ((wcurd = HeapAlloc( GetProcessHeap(), 0, len )))
            WideCharToMultiByte( CP_ACP, 0, curdir, -1, wcurd, len, NULL, NULL );
        else
            ret = VIF_OUTOFMEMORY;
    }
    if (!ret)
    {
        len = *tmpfilelen * sizeof(WCHAR);
        wtmpf = HeapAlloc( GetProcessHeap(), 0, len );
        if (!wtmpf)
            ret = VIF_OUTOFMEMORY;
    }
    if (!ret)
        ret = VerInstallFileA(flags,wsrcf,wdestf,wsrcd,wdestd,wcurd,wtmpf,&len);
    if (!ret)
        *tmpfilelen = MultiByteToWideChar( CP_ACP, 0, wtmpf, -1, tmpfile, *tmpfilelen );
    else if (ret & VIF_BUFFTOOSMALL)
        *tmpfilelen = len;  /* FIXME: not correct */

    HeapFree( GetProcessHeap(), 0, wsrcf );
    HeapFree( GetProcessHeap(), 0, wsrcd );
    HeapFree( GetProcessHeap(), 0, wdestf );
    HeapFree( GetProcessHeap(), 0, wdestd );
    HeapFree( GetProcessHeap(), 0, wtmpf );
    HeapFree( GetProcessHeap(), 0, wcurd );
    return ret;
}