Ignore Grace licenses

Author: nekoppai

Makefile

@@ -1,6 +1,6 @@
 OPT=-Os -Wall
 CFLAGS=-fno-ident -fno-stack-check -fno-stack-protector
-LDFLAGS=-L. -nostartfiles -nostdlib -lucrt -Wl,--exclude-all-symbols,--enable-stdcall-fixup,--dynamicbase,--nxcompat,--subsystem,windows:6.0
+LDFLAGS=-L. -nostartfiles -nostdlib -lucrt -luser32 -lkernel32 -Wl,--exclude-all-symbols,--enable-stdcall-fixup,--dynamicbase,--nxcompat,--subsystem,windows:6.0
 
 PREFIX32=C:/mingw32/bin/
 PREFIX64=C:/mingw64/bin/

readme.md

@@ -23,7 +23,7 @@ copy /y sppc64.dll "%programfiles%\Microsoft Office\root\vfs\System\sppc.dll"
 0.0.0.0 ols.officeapps.live.com
 ```
 
-4. Install a blank key for the edition you want to use. Make sure to check using `slmgr.vbs -dlv all` that the `Grace` license for Office has `Unlicensed` status, otherwise it may interfere. You may fix this with `slmgr.vbs -upk ACTIVATION_ID`.
+4. Install a blank key for the edition you want to use.
 
 Please note these steps are an example. As stated before, no direct support will be provided for usage of this method. You should use one of the solutions provided by our **authorized** partners and direct your support queries to them.
 

sppc.c

@@ -13,6 +13,15 @@ typedef struct {
     UINT64 qwValidityExpiration;
 } SL_LICENSING_STATUS;
 
+typedef enum {
+    SL_DATA_NONE = REG_NONE,
+    SL_DATA_SZ = REG_SZ,
+    SL_DATA_DWORD = REG_DWORD,
+    SL_DATA_BINARY = REG_BINARY,
+    SL_DATA_MULTI_SZ,
+    SL_DATA_SUM = 100
+} SLDATATYPE;
+
 HRESULT WINAPI SLGetLicensingStatusInformation(
     HSLC hSLC,
     SLID *pAppID,
@@ -22,6 +31,15 @@ HRESULT WINAPI SLGetLicensingStatusInformation(
     SL_LICENSING_STATUS **ppLicensingStatus
 );
 
+HRESULT WINAPI SLGetProductSkuInformation(
+    HSLC hSLC,
+    const SLID *pProductSkuId,
+    PCWSTR pwszValueName,
+    SLDATATYPE *peDataType,
+    UINT *pcbValue,
+    PBYTE *ppbValue
+);
+
 BOOL APIENTRY WINAPI dll_main(
     HINSTANCE hinstDLL,
     DWORD fdwReason,
@@ -30,6 +48,31 @@ BOOL APIENTRY WINAPI dll_main(
     return TRUE;
 }
 
+BOOL check_for_grace(HSLC hSLC, SLID *pProductSkuId) {
+    PBYTE *pBuffer = malloc(4096);
+    UINT cbSize = 4096;
+
+    if(SLGetProductSkuInformation(
+        hSLC,
+        pProductSkuId,
+        L"Name",
+        NULL,
+        &cbSize,
+        pBuffer
+    ) != S_OK) {
+        free(pBuffer);
+        return FALSE;
+    }
+
+    if(wcsstr((PWSTR)*pBuffer, L"Grace") != NULL) {
+        free(pBuffer);
+        return TRUE;
+    }
+
+	free(pBuffer);
+    return FALSE;
+}
+
 HRESULT WINAPI SLGetLicensingStatusInformationHook(
     HSLC hSLC,
     SLID *pAppID,
@@ -52,6 +95,7 @@ HRESULT WINAPI SLGetLicensingStatusInformationHook(
 
     for(int i = 0; i < *pnStatusCount; i++) {
         if((*ppLicensingStatus+i)->eStatus == 0) continue;
+        if(check_for_grace(hSLC, &((*ppLicensingStatus+i)->SkuId))) continue;
 
         (*ppLicensingStatus+i)->eStatus = 1;
         (*ppLicensingStatus+i)->dwGraceTime = 0;

sppc.rc

@@ -1,6 +1,6 @@
 1 VERSIONINFO
-FILEVERSION    0,1,0,0
-PRODUCTVERSION 0,1,0,0
+FILEVERSION    0,2,0,0
+PRODUCTVERSION 0,2,0,0
 FILEOS 0x40004L
 FILETYPE 0x2L
 BEGIN
@@ -10,12 +10,12 @@ BEGIN
         BEGIN
             VALUE "CompanyName",      "Anomalous Software Deterioration Corporation"
             VALUE "FileDescription",  "ohook SPPC"
-            VALUE "FileVersion",      "0.1.0.0"
+            VALUE "FileVersion",      "0.2.0.0"
             VALUE "InternalName",     "sppc"
             VALUE "LegalCopyright",   "© 2023 Anomalous Software Deterioration Corporation"
             VALUE "OriginalFilename", "sppc.dll"
             VALUE "ProductName",      "ohook"
-            VALUE "ProductVersion",   "0.1.0.0"
+            VALUE "ProductVersion",   "0.2.0.0"
         END
     END
 

sppcs32.def

@@ -1,3 +1,4 @@
 LIBRARY sppcs.dll
 EXPORTS
 SLGetLicensingStatusInformation@24
+SLGetProductSkuInformation@24

sppcs64.def

@@ -1,3 +1,4 @@
 LIBRARY sppcs.dll
 EXPORTS
 SLGetLicensingStatusInformation
+SLGetProductSkuInformation