kernel32: Add a stub implementation for GetVolumeNameForVolumeMountPoint{A, W}.

dlls/kernel32/kernel32.spec

@@ -649,8 +649,8 @@
 @ stdcall GetVersionExW(ptr)
 @ stdcall GetVolumeInformationA(str ptr long ptr ptr ptr ptr long)
 @ stdcall GetVolumeInformationW(wstr ptr long ptr ptr ptr ptr long)
-@ stub GetVolumeNameForVolumeMountPointA
+@ stdcall GetVolumeNameForVolumeMountPointA(str ptr long)
-@ stdcall GetVolumeNameForVolumeMountPointW(wstr long long)
+@ stdcall GetVolumeNameForVolumeMountPointW(wstr ptr long)
 @ stdcall GetVolumePathNameA(str ptr long)
 @ stdcall GetVolumePathNameW(wstr ptr long)
 # @ stub GetVolumePathNamesForVolumeNameA

dlls/kernel32/tests/volume.c

@@ -45,7 +45,51 @@ static void test_query_dos_deviceA(void)
     }
 }
 
+static void test_GetVolumeNameForVolumeMountPointA(void)
+{
+    BOOL ret;
+    char volume[MAX_PATH], path[] = "c:\\";
+    DWORD len = sizeof(volume);
+
+    ret = GetVolumeNameForVolumeMountPointA(path, volume, 0);
+    ok(ret == FALSE, "GetVolumeNameForVolumeMountPointA succeeded\n");
+
+    if (0) { /* these crash on XP */
+    ret = GetVolumeNameForVolumeMountPointA(path, NULL, len);
+    ok(ret == FALSE, "GetVolumeNameForVolumeMountPointA succeeded\n");
+
+    ret = GetVolumeNameForVolumeMountPointA(NULL, volume, len);
+    ok(ret == FALSE, "GetVolumeNameForVolumeMountPointA succeeded\n");
+    }
+
+    ret = GetVolumeNameForVolumeMountPointA(path, volume, len);
+    ok(ret == TRUE, "GetVolumeNameForVolumeMountPointA failed\n");
+}
+
+static void test_GetVolumeNameForVolumeMountPointW(void)
+{
+    BOOL ret;
+    WCHAR volume[MAX_PATH], path[] = {'c',':','\\',0};
+    DWORD len = sizeof(volume) / sizeof(WCHAR);
+
+    ret = GetVolumeNameForVolumeMountPointW(path, volume, 0);
+    ok(ret == FALSE, "GetVolumeNameForVolumeMountPointA succeeded\n");
+
+    if (0) { /* these crash on XP */
+    ret = GetVolumeNameForVolumeMountPointW(path, NULL, len);
+    ok(ret == FALSE, "GetVolumeNameForVolumeMountPointW succeeded\n");
+
+    ret = GetVolumeNameForVolumeMountPointW(NULL, volume, len);
+    ok(ret == FALSE, "GetVolumeNameForVolumeMountPointW succeeded\n");
+    }
+
+    ret = GetVolumeNameForVolumeMountPointW(path, volume, len);
+    ok(ret == TRUE, "GetVolumeNameForVolumeMountPointW failed\n");
+}
+
 START_TEST(volume)
 {
     test_query_dos_deviceA();
+    test_GetVolumeNameForVolumeMountPointA();
+    test_GetVolumeNameForVolumeMountPointW();
 }

dlls/kernel32/volume.c

@@ -748,14 +748,47 @@ BOOL WINAPI SetVolumeLabelA(LPCSTR root, LPCSTR volname)
 
 
 /***********************************************************************
- *           GetVolumeNameForVolumeMountPointW   (KERNEL32.@)
+ *           GetVolumeNameForVolumeMountPointA   (KERNEL32.@)
  */
-BOOL WINAPI GetVolumeNameForVolumeMountPointW(LPCWSTR str, LPWSTR dst, DWORD size)
+BOOL WINAPI GetVolumeNameForVolumeMountPointA( LPCSTR path, LPSTR volume, DWORD size )
 {
-    FIXME("(%s, %p, %x): stub\n", debugstr_w(str), dst, size);
+    BOOL ret;
-    return 0;
+    WCHAR volumeW[50], *pathW = NULL;
+    DWORD len = min( sizeof(volumeW) / sizeof(WCHAR), size );
+
+    TRACE("(%s, %p, %x)\n", debugstr_a(path), volume, size);
+
+    if (!path || !(pathW = FILE_name_AtoW( path, TRUE )))
+        return FALSE;
+
+    if ((ret = GetVolumeNameForVolumeMountPointW( pathW, volumeW, len )))
+        FILE_name_WtoA( volumeW, -1, volume, len );
+
+    HeapFree( GetProcessHeap(), 0, pathW );
+    return ret;
 }
 
+/***********************************************************************
+ *           GetVolumeNameForVolumeMountPointW   (KERNEL32.@)
+ */
+BOOL WINAPI GetVolumeNameForVolumeMountPointW( LPCWSTR path, LPWSTR volume, DWORD size )
+{
+    BOOL ret = FALSE;
+    static const WCHAR fmt[] =
+        { '\\','\\','?','\\','V','o','l','u','m','e','{','%','0','2','x','}','\\',0 };
+
+    TRACE("(%s, %p, %x)\n", debugstr_w(path), volume, size);
+
+    if (!path || !path[0]) return FALSE;
+
+    if (size >= sizeof(fmt) / sizeof(WCHAR))
+    {
+        /* FIXME: will break when we support volume mounts */
+        sprintfW( volume, fmt, tolowerW( path[0] ) - 'a' );
+        ret = TRUE;
+    }
+    return ret;
+}
 
 /***********************************************************************
  *           DefineDosDeviceW       (KERNEL32.@)