test-drop-caches: use `has_dos_drive_prefix()`
This is a companion patch to 'mingw: handle `subst`-ed "DOS drives"':
use the DOS drive prefix handling that is already provided by
`compat/mingw.c` (and which just learned to handle non-alphabetical
"drive letters").
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
diff --git a/t/helper/test-drop-caches.c b/t/helper/test-drop-caches.c
index bd1a857..f125192 100644
--- a/t/helper/test-drop-caches.c
+++ b/t/helper/test-drop-caches.c
@@ -6,18 +6,21 @@
{
char Buffer[MAX_PATH];
DWORD dwRet;
- char szVolumeAccessPath[] = "\\\\.\\X:";
+ char szVolumeAccessPath[] = "\\\\.\\XXXX:";
HANDLE hVolWrite;
- int success = 0;
+ int success = 0, dos_drive_prefix;
dwRet = GetCurrentDirectory(MAX_PATH, Buffer);
if ((0 == dwRet) || (dwRet > MAX_PATH))
return error("Error getting current directory");
- if ((Buffer[0] < 'A') || (Buffer[0] > 'Z'))
- return error("Invalid drive letter '%c'", Buffer[0]);
+ dos_drive_prefix = has_dos_drive_prefix(Buffer);
+ if (!dos_drive_prefix)
+ return error("'%s': invalid drive letter", Buffer);
- szVolumeAccessPath[4] = Buffer[0];
+ memcpy(szVolumeAccessPath, Buffer, dos_drive_prefix);
+ szVolumeAccessPath[dos_drive_prefix] = '\0';
+
hVolWrite = CreateFile(szVolumeAccessPath, GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
if (INVALID_HANDLE_VALUE == hVolWrite)
