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Split SHGetFileInfoW into two functions.

This commit is contained in:
Mike McCormack 2005-05-12 09:56:48 +00:00 committed by Alexandre Julliard
parent ac5b025103
commit 1ae212a105
1 changed files with 63 additions and 59 deletions
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122
dlls/shell32/shell32_main.c
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@ -236,6 +236,67 @@ LPWSTR* WINAPI CommandLineToArgvW(LPCWSTR lpCmdline, int* numargs)
return argv;
}
static DWORD shgfi_get_exe_type(LPCWSTR szFullPath)
{
BOOL status = FALSE;
HANDLE hfile;
DWORD BinaryType;
IMAGE_DOS_HEADER mz_header;
IMAGE_NT_HEADERS nt;
DWORD len;
char magic[4];
status = GetBinaryTypeW (szFullPath, &BinaryType);
if (!status)
return 0;
if (BinaryType == SCS_DOS_BINARY || BinaryType == SCS_PIF_BINARY)
return 0x4d5a;
hfile = CreateFileW( szFullPath, GENERIC_READ, FILE_SHARE_READ,
NULL, OPEN_EXISTING, 0, 0 );
if ( hfile == INVALID_HANDLE_VALUE )
return 0;
/*
* The next section is adapted from MODULE_GetBinaryType, as we need
* to examine the image header to get OS and version information. We
* know from calling GetBinaryTypeA that the image is valid and either
* an NE or PE, so much error handling can be omitted.
* Seek to the start of the file and read the header information.
*/
SetFilePointer( hfile, 0, NULL, SEEK_SET );
ReadFile( hfile, &mz_header, sizeof(mz_header), &len, NULL );
SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET );
ReadFile( hfile, magic, sizeof(magic), &len, NULL );
if ( *(DWORD*)magic == IMAGE_NT_SIGNATURE )
{
SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET );
ReadFile( hfile, &nt, sizeof(nt), &len, NULL );
CloseHandle( hfile );
if (nt.OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_GUI)
{
return IMAGE_NT_SIGNATURE |
(nt.OptionalHeader.MajorSubsystemVersion << 24) |
(nt.OptionalHeader.MinorSubsystemVersion << 16);
}
return IMAGE_NT_SIGNATURE;
}
else if ( *(WORD*)magic == IMAGE_OS2_SIGNATURE )
{
IMAGE_OS2_HEADER ne;
SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET );
ReadFile( hfile, &ne, sizeof(ne), &len, NULL );
CloseHandle( hfile );
if (ne.ne_exetyp == 2)
return IMAGE_OS2_SIGNATURE | (ne.ne_expver << 16);
return 0;
}
CloseHandle( hfile );
return 0;
}
#define SHGFI_KNOWN_FLAGS \
(SHGFI_SMALLICON | SHGFI_OPENICON | SHGFI_SHELLICONSIZE | SHGFI_PIDL | \
SHGFI_USEFILEATTRIBUTES | SHGFI_ADDOVERLAYS | SHGFI_OVERLAYINDEX | \
@ -277,7 +338,7 @@ DWORD WINAPI SHGetFileInfoW(LPCWSTR path,DWORD dwFileAttributes,
if (!(flags & SHGFI_PIDL))
{
/* SHGitFileInfo should work with absolute and relative paths */
/* SHGetFileInfo should work with absolute and relative paths */
if (PathIsRelativeW(path))
{
GetCurrentDirectoryW(MAX_PATH, szLocation);
@ -291,66 +352,9 @@ DWORD WINAPI SHGetFileInfoW(LPCWSTR path,DWORD dwFileAttributes,
if (flags & SHGFI_EXETYPE)
{
BOOL status = FALSE;
HANDLE hfile;
DWORD BinaryType;
IMAGE_DOS_HEADER mz_header;
IMAGE_NT_HEADERS nt;
DWORD len;
char magic[4];
if (flags != SHGFI_EXETYPE)
return 0;
status = GetBinaryTypeW (szFullPath, &BinaryType);
if (!status)
return 0;
if ((BinaryType == SCS_DOS_BINARY) || (BinaryType == SCS_PIF_BINARY))
return 0x4d5a;
hfile = CreateFileW( szFullPath, GENERIC_READ, FILE_SHARE_READ,
NULL, OPEN_EXISTING, 0, 0 );
if ( hfile == INVALID_HANDLE_VALUE )
return 0;
/*
* The next section is adapted from MODULE_GetBinaryType, as we need
* to examine the image header to get OS and version information. We
* know from calling GetBinaryTypeA that the image is valid and either
* an NE or PE, so much error handling can be omitted.
* Seek to the start of the file and read the header information.
*/
SetFilePointer( hfile, 0, NULL, SEEK_SET );
ReadFile( hfile, &mz_header, sizeof(mz_header), &len, NULL );
SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET );
ReadFile( hfile, magic, sizeof(magic), &len, NULL );
if ( *(DWORD*)magic == IMAGE_NT_SIGNATURE )
{
SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET );
ReadFile( hfile, &nt, sizeof(nt), &len, NULL );
CloseHandle( hfile );
if (nt.OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_GUI)
{
return IMAGE_NT_SIGNATURE |
(nt.OptionalHeader.MajorSubsystemVersion << 24) |
(nt.OptionalHeader.MinorSubsystemVersion << 16);
}
return IMAGE_NT_SIGNATURE;
}
else if ( *(WORD*)magic == IMAGE_OS2_SIGNATURE )
{
IMAGE_OS2_HEADER ne;
SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET );
ReadFile( hfile, &ne, sizeof(ne), &len, NULL );
CloseHandle( hfile );
if (ne.ne_exetyp == 2)
return IMAGE_OS2_SIGNATURE | (ne.ne_expver << 16);
return 0;
}
CloseHandle( hfile );
return 0;
return shgfi_get_exe_type(szFullPath);
}
/*