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Try to avoid loading 16-bit DLLs into memory for accessing version

Browse source 
info, this might lead to undesired side effects like loading a bunch
of other 16-bit DLLs.
This commit is contained in:
Dmitry Timoshkov 2004-08-26 18:10:24 +00:00 committed by Alexandre Julliard
parent 968e252149
commit 97551bcef5
1 changed files with 159 additions and 132 deletions
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291
dlls/version/info.c
View file

@ -285,11 +285,9 @@ void ConvertVersionInfo32To16( VS_VERSION_INFO_STRUCT32 *info32,
* VERSION_GetFileVersionInfo_PE [internal]
*
* NOTE: returns size of the PE VERSION resource or 0xFFFFFFFF
* in the case if file exists, but VERSION_INFO not found.
* FIXME: handle is not used.
* in the case the file is a PE module, but VERSION_INFO not found.
*/
static DWORD VERSION_GetFileVersionInfo_PE( LPCWSTR filename, LPDWORD handle,
DWORD datasize, LPVOID data )
static DWORD VERSION_GetFileVersionInfo_PE( LPCWSTR filename, DWORD datasize, LPVOID data )
{
VS_FIXEDFILEINFO *vffi;
DWORD len;
@ -298,7 +296,7 @@ static DWORD VERSION_GetFileVersionInfo_PE( LPCWSTR filename, LPDWORD handle,
HRSRC hRsrc;
HGLOBAL hMem;
TRACE("(%s,%p)\n", debugstr_w(filename), handle );
TRACE("%s\n", debugstr_w(filename));
hModule = GetModuleHandleW(filename);
if(!hModule)
@ -351,7 +349,6 @@ static DWORD VERSION_GetFileVersionInfo_PE( LPCWSTR filename, LPDWORD handle,
else
len = 0xFFFFFFFF;
}
SetLastError(0);
END:
FreeResource(hMem);
FreeLibrary(hModule);
@ -363,21 +360,87 @@ END:
* VERSION_GetFileVersionInfo_16 [internal]
*
* NOTE: returns size of the 16-bit VERSION resource or 0xFFFFFFFF
* in the case if file exists, but VERSION_INFO not found.
* FIXME: handle is not used.
* in the case the file exists, but VERSION_INFO not found.
*/
static DWORD VERSION_GetFileVersionInfo_16( LPCSTR filename, LPDWORD handle,
DWORD datasize, LPVOID data )
static DWORD VERSION_GetFileVersionInfo_16( LPCSTR filename, DWORD datasize, LPVOID data )
{
VS_FIXEDFILEINFO *vffi;
DWORD len;
DWORD len, offset;
BYTE *buf;
HMODULE16 hModule;
HRSRC16 hRsrc;
HGLOBAL16 hMem;
char dllname[20], owner[20], *p;
const char *basename;
BOOL is_builtin = FALSE;
TRACE("(%s,%p)\n", debugstr_a(filename), handle );
TRACE("%s\n", debugstr_a(filename));
/* strip path information */
basename = filename;
if (basename[0] && basename[1] == ':') basename += 2; /* strip drive specification */
if ((p = strrchr( basename, '\\' ))) basename = p + 1;
if ((p = strrchr( basename, '/' ))) basename = p + 1;
if (strlen(basename) < sizeof(dllname)-4)
{
int file_exists;
strcpy( dllname, basename );
p = strrchr( dllname, '.' );
if (!p) strcat( dllname, ".dll" );
for (p = dllname; *p; p++) if (*p >= 'A' && *p <= 'Z') *p += 32;
if (wine_dll_get_owner( dllname, owner, sizeof(owner), &file_exists ) == 0)
is_builtin = TRUE;
}
/* first try without loading a 16-bit module */
if (is_builtin)
len = 0;
else
len = GetFileResourceSize16( filename,
MAKEINTRESOURCEA(VS_FILE_INFO),
MAKEINTRESOURCEA(VS_VERSION_INFO),
&offset );
if (len)
{
if (!data) return len;
len = GetFileResource16( filename,
MAKEINTRESOURCEA(VS_FILE_INFO),
MAKEINTRESOURCEA(VS_VERSION_INFO),
offset, datasize, data );
if (len)
{
if ( VersionInfoIs16( data ) )
vffi = (VS_FIXEDFILEINFO *)VersionInfo16_Value( (VS_VERSION_INFO_STRUCT16 *)data );
else
vffi = (VS_FIXEDFILEINFO *)VersionInfo32_Value( (VS_VERSION_INFO_STRUCT32 *)data );
if ( vffi->dwSignature == VS_FFI_SIGNATURE )
{
if ( ((VS_VERSION_INFO_STRUCT16 *)data)->wLength < len )
len = ((VS_VERSION_INFO_STRUCT16 *)data)->wLength;
if ( TRACE_ON(ver) )
print_vffi_debug( vffi );
if ( datasize >= sizeof(VS_VERSION_INFO_STRUCT16)
&& datasize >= ((VS_VERSION_INFO_STRUCT16 *)data)->wLength
&& !VersionInfoIs16( data ) )
{
/* convert resource from PE format to NE format */
ConvertVersionInfo32To16( (VS_VERSION_INFO_STRUCT32 *)data,
(VS_VERSION_INFO_STRUCT16 *)data );
}
return len;
}
}
}
/* this might be a builtin 16-bit module */
hModule = LoadLibrary16(filename);
if(hModule < 32)
{
@ -404,7 +467,10 @@ static DWORD VERSION_GetFileVersionInfo_16( LPCSTR filename, LPDWORD handle,
buf = LockResource16(hMem);
if(!VersionInfoIs16(buf))
{
len = 0xFFFFFFFF;
goto END;
}
vffi = (VS_FIXEDFILEINFO *)VersionInfo16_Value( (VS_VERSION_INFO_STRUCT16 *)buf );
@ -440,95 +506,39 @@ END:
*/
DWORD WINAPI GetFileVersionInfoSizeW( LPCWSTR filename, LPDWORD handle )
{
DWORD ret, offset, len = (filename && strlenW(filename)) ? strlenW(filename) + 1: MAX_PATH;
LPSTR filenameA = NULL;
LPWSTR filenameW;
VS_FIXEDFILEINFO *vffi;
BYTE buf[144];
DWORD len;
TRACE("(%s,%p)\n", debugstr_w(filename), handle );
filenameW = HeapAlloc( GetProcessHeap(), 0, sizeof(WCHAR) * len );
if (filename && strlenW(filename))
strcpyW(filenameW, filename);
else {
DWORD nSize = GetModuleFileNameW(NULL, filenameW, len);
if (!nSize || nSize >= len)
if (handle) *handle = 0;
len = VERSION_GetFileVersionInfo_PE(filename, 0, NULL);
/* 0xFFFFFFFF means: file is a PE module, but VERSION_INFO not found */
if(len == 0xFFFFFFFF)
{
SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
return 0;
}
if (!len)
{
LPSTR filenameA;
len = WideCharToMultiByte( CP_ACP, 0, filename, -1, NULL, 0, NULL, NULL );
filenameA = HeapAlloc( GetProcessHeap(), 0, len );
WideCharToMultiByte( CP_ACP, 0, filename, -1, filenameA, len, NULL, NULL );
len = VERSION_GetFileVersionInfo_16(filenameA, 0, NULL);
HeapFree( GetProcessHeap(), 0, filenameA );
/* 0xFFFFFFFF means: file exists, but VERSION_INFO not found */
if (!len || len == 0xFFFFFFFF)
{
len = 0;
goto End;
SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
return 0;
}
}
len = VERSION_GetFileVersionInfo_PE(filenameW, handle, 0, NULL);
/* 0xFFFFFFFF means: file exists, but VERSION_INFO not found */
if(len == 0xFFFFFFFF)
{
if ( handle ) *handle = 0L;
SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
len = 0;
goto End;
}
if(len) {
if ( handle ) *handle = 0L;
goto End;
}
/* FIXME: handle not set correctly after this point
*/
len = WideCharToMultiByte( CP_ACP, 0, filename, -1, NULL, 0, NULL, NULL );
filenameA = HeapAlloc( GetProcessHeap(), 0, len );
WideCharToMultiByte( CP_ACP, 0, filename, -1, filenameA, len, NULL, NULL );
len = VERSION_GetFileVersionInfo_16(filenameA, handle, 0, NULL);
/* 0xFFFFFFFF means: file exists, but VERSION_INFO not found */
if(len == 0xFFFFFFFF)
{
SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
len = 0;
goto End;
}
if(len) goto End;
/* FIXME: last error not handled after this point
*/
len = GetFileResourceSize16( filenameA,
MAKEINTRESOURCEA(VS_FILE_INFO),
MAKEINTRESOURCEA(VS_VERSION_INFO),
&offset );
if (!len) goto End;
ret = GetFileResource16( filenameA,
MAKEINTRESOURCEA(VS_FILE_INFO),
MAKEINTRESOURCEA(VS_VERSION_INFO),
offset, sizeof( buf ), buf );
if (!ret) goto End;
if ( handle ) *handle = offset;
if ( VersionInfoIs16( buf ) )
vffi = (VS_FIXEDFILEINFO *)VersionInfo16_Value( (VS_VERSION_INFO_STRUCT16 *)buf );
else
vffi = (VS_FIXEDFILEINFO *)VersionInfo32_Value( (VS_VERSION_INFO_STRUCT32 *)buf );
if ( vffi->dwSignature != VS_FFI_SIGNATURE )
{
WARN("vffi->dwSignature is 0x%08lx, but not 0x%08lx!\n",
vffi->dwSignature, VS_FFI_SIGNATURE );
len = 0;
goto End;
}
if ( ((VS_VERSION_INFO_STRUCT16 *)buf)->wLength < len )
len = ((VS_VERSION_INFO_STRUCT16 *)buf)->wLength;
if ( TRACE_ON(ver) )
print_vffi_debug( vffi );
End:
HeapFree( GetProcessHeap(), 0, filenameW);
if (filenameA)
HeapFree( GetProcessHeap(), 0, filenameA);
SetLastError(0);
return len;
}
@ -558,23 +568,26 @@ BOOL WINAPI GetFileVersionInfoA( LPCSTR filename, DWORD handle,
if(filename) RtlCreateUnicodeStringFromAsciiz(&filenameW, filename);
else filenameW.Buffer = NULL;
len = VERSION_GetFileVersionInfo_PE(filenameW.Buffer, &handle, datasize, data);
/* 0xFFFFFFFF means: file exists, but VERSION_INFO not found */
len = VERSION_GetFileVersionInfo_PE(filenameW.Buffer, datasize, data);
/* 0xFFFFFFFF means: file is a PE module, but VERSION_INFO not found */
RtlFreeUnicodeString(&filenameW);
if(len == 0xFFFFFFFF) return FALSE;
if(len)
goto DO_CONVERT;
len = VERSION_GetFileVersionInfo_16(filename, &handle, datasize, data);
/* 0xFFFFFFFF means: file exists, but VERSION_INFO not found */
if(len == 0xFFFFFFFF) return FALSE;
if(len)
goto DO_CONVERT;
if ( !GetFileResource16( filename, MAKEINTRESOURCEA(VS_FILE_INFO),
MAKEINTRESOURCEA(VS_VERSION_INFO),
handle, datasize, data ) )
if (len == 0xFFFFFFFF)
{
SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
return FALSE;
DO_CONVERT:
}
if (!len)
{
len = VERSION_GetFileVersionInfo_16(filename, datasize, data);
/* 0xFFFFFFFF means: file exists, but VERSION_INFO not found */
if (!len || len == 0xFFFFFFFF)
{
SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
return FALSE;
}
}
if ( datasize >= sizeof(VS_VERSION_INFO_STRUCT16)
&& datasize >= ((VS_VERSION_INFO_STRUCT16 *)data)->wLength
&& !VersionInfoIs16( data ) )
@ -584,6 +597,7 @@ DO_CONVERT:
(VS_VERSION_INFO_STRUCT16 *)data );
}
SetLastError(0);
return TRUE;
}
@ -593,35 +607,48 @@ DO_CONVERT:
BOOL WINAPI GetFileVersionInfoW( LPCWSTR filename, DWORD handle,
DWORD datasize, LPVOID data )
{
DWORD len = WideCharToMultiByte( CP_ACP, 0, filename, -1, NULL, 0, NULL, NULL );
LPSTR fn = HeapAlloc( GetProcessHeap(), 0, len );
DWORD retv = TRUE;
WideCharToMultiByte( CP_ACP, 0, filename, -1, fn, len, NULL, NULL );
DWORD len;
TRACE("(%s,%ld,size=%ld,data=%p)\n",
debugstr_w(filename), handle, datasize, data );
if(VERSION_GetFileVersionInfo_PE(filename, &handle, datasize, data))
goto END;
if(VERSION_GetFileVersionInfo_16(fn, &handle, datasize, data))
goto END;
if ( !GetFileResource16( fn, MAKEINTRESOURCEA(VS_FILE_INFO),
MAKEINTRESOURCEA(VS_VERSION_INFO),
handle, datasize, data ) )
retv = FALSE;
else if ( datasize >= sizeof(VS_VERSION_INFO_STRUCT16)
&& datasize >= ((VS_VERSION_INFO_STRUCT16 *)data)->wLength
&& VersionInfoIs16( data ) )
len = VERSION_GetFileVersionInfo_PE(filename, datasize, data);
/* 0xFFFFFFFF means: file is a PE module, but VERSION_INFO not found */
if (len == 0xFFFFFFFF)
{
ERR("Cannot access NE resource in %s\n", debugstr_a(fn) );
retv = FALSE;
SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
return FALSE;
}
END:
HeapFree( GetProcessHeap(), 0, fn );
return retv;
if (!len)
{
LPSTR filenameA;
len = WideCharToMultiByte( CP_ACP, 0, filename, -1, NULL, 0, NULL, NULL );
filenameA = HeapAlloc( GetProcessHeap(), 0, len );
WideCharToMultiByte( CP_ACP, 0, filename, -1, filenameA, len, NULL, NULL );
len = VERSION_GetFileVersionInfo_16(filenameA, datasize, data);
HeapFree( GetProcessHeap(), 0, filenameA );
/* 0xFFFFFFFF means: file exists, but VERSION_INFO not found */
if (!len || len == 0xFFFFFFFF)
{
SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
return FALSE;
}
}
if ( datasize >= sizeof(VS_VERSION_INFO_STRUCT16) &&
datasize >= ((VS_VERSION_INFO_STRUCT16 *)data)->wLength &&
VersionInfoIs16( data ) )
{
ERR("Cannot access NE resource in %s\n", debugstr_w(filename) );
SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
return FALSE;
}
SetLastError(0);
return TRUE;
}