[PATCH 2/3] winebus.sys: Make the device and instance IDs consistent.

[Zebediah Figura]

From: Zebediah Figura

Signed-off-by: Zebediah Figura 
---
 dlls/winebus.sys/main.c | 27 +++++++++++++++++++++++----
 1 file changed, 23 insertions(+), 4 deletions(-)

diff --git a/dlls/winebus.sys/main.c b/dlls/winebus.sys/main.c
index 73e3154..c42128c 100644
--- a/dlls/winebus.sys/main.c
+++ b/dlls/winebus.sys/main.c
@@ -168,13 +168,32 @@ static WCHAR *get_instance_id(DEVICE_OBJECT *device)

static WCHAR *get_device_id(DEVICE_OBJECT *device)
 {
-    static const WCHAR formatW[] =  {'%','s','\','V','i','d','_','%','0','4','x','&','P','i','d','_','%','0','4','x',0};
+    static const WCHAR formatW[] = {'%','s','\','v','i','d','_','%','0','4','x',
+            '&','p','i','d','_','%','0','4','x',0};
+    static const WCHAR format_inputW[] = {'%','s','\','v','i','d','_','%','0','4','x',
+            '&','p','i','d','_','%','0','4','x','&','%','s','_','%','i',0};
     struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
-    DWORD len = strlenW(ext->busid) + 19;
     WCHAR *dst;
+    DWORD len;

-    if ((dst = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR))))
-        sprintfW(dst, formatW, ext->busid, ext->vid, ext->pid);
+    if (ext->input == (WORD)-1)
+    {
+        len = snprintfW(NULL, 0, formatW, ext->busid, ext->vid, ext->pid);
+        if ((dst = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR))))
+        {
+            sprintfW(dst, formatW, ext->busid, ext->vid, ext->pid);
+        }
+    }
+    else
+    {
+        len = snprintfW(NULL, 0, format_inputW, ext->busid, ext->vid, ext->pid,
+                ext->is_gamepad ? igW : miW, ext->input);
+        if ((dst = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR))))
+        {
+            sprintfW(dst, format_inputW, ext->busid, ext->vid, ext->pid,
+                    ext->is_gamepad ? igW : miW, ext->input);
+        }
+    }

return dst;
 }