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Fixed chdman -extract to a physical drive on Windows.

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This commit is contained in:
Aaron Giles 2008-03-19 07:16:57 +00:00
parent e4d1474415
commit c44017b4fd
1 changed files with 13 additions and 2 deletions
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15
src/osd/windows/winfile.c
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@ -41,6 +41,17 @@ static DWORD create_path_recursive(const TCHAR *path);
//============================================================
// INLINE FUNCTIONS
//============================================================
INLINE int is_path_to_physical_drive(const char *path)
{
return (_strnicmp(path, "\\\\.\\physicaldrive", 17) == 0);
}
//============================================================
// osd_open
//============================================================
@ -79,7 +90,7 @@ file_error osd_open(const char *path, UINT32 openflags, osd_file **file, UINT64
// select the file open modes
if (openflags & OPEN_FLAG_WRITE)
{
disposition = (openflags & OPEN_FLAG_CREATE) ? CREATE_ALWAYS : OPEN_EXISTING;
disposition = (!is_path_to_physical_drive(path) && (openflags & OPEN_FLAG_CREATE)) ? CREATE_ALWAYS : OPEN_EXISTING;
access = (openflags & OPEN_FLAG_READ) ? (GENERIC_READ | GENERIC_WRITE) : GENERIC_WRITE;
sharemode = 0;
}
@ -250,7 +261,7 @@ int osd_get_physical_drive_geometry(const char *filename, UINT32 *cylinders, UIN
int result;
// if it doesn't smell like a physical drive, just return FALSE
if (_strnicmp(filename, "\\\\.\\physicaldrive", 17) != 0)
if (!is_path_to_physical_drive(filename))
return FALSE;
// do a create file on the drive