[PATCH v2 1/1] msi: Dynamically determine supported package architectures.

[Billy Laws]

From: Billy Laws

---
 dlls/msi/package.c | 44 ++++++++++++++++++++++++++++----------------
 1 file changed, 28 insertions(+), 16 deletions(-)

diff --git a/dlls/msi/package.c b/dlls/msi/package.c
index 89b4c09dfa4..fcf43f949a2 100644
--- a/dlls/msi/package.c
+++ b/dlls/msi/package.c
@@ -1158,27 +1158,39 @@ static UINT parse_suminfo( MSISUMMARYINFO *si, MSIPACKAGE *package )
     return ERROR_SUCCESS;
 }

+static BOOL validate_package_platform( enum platform platform )
+{
+    USHORT proc_machine, native_machine;
+    IsWow64Process2( GetCurrentProcess(), &proc_machine, &native_machine );
+    switch (platform)
+    {
+    case PLATFORM_INTEL:
+        return native_machine == IMAGE_FILE_MACHINE_I386 ||
+               native_machine == IMAGE_FILE_MACHINE_AMD64 ||
+               native_machine == IMAGE_FILE_MACHINE_ARM64;
+    case PLATFORM_X64:
+        return native_machine == IMAGE_FILE_MACHINE_AMD64 ||
+               native_machine == IMAGE_FILE_MACHINE_ARM64;
+    case PLATFORM_ARM:
+        return native_machine == IMAGE_FILE_MACHINE_ARM;
+    case PLATFORM_ARM64:
+        return native_machine == IMAGE_FILE_MACHINE_ARM64;
+    case PLATFORM_INTEL64:
+    default:
+        return FALSE;
+    }
+}
+
 static UINT validate_package( MSIPACKAGE *package )
 {
     UINT i;

-    if (package->platform == PLATFORM_INTEL64)
-        return ERROR_INSTALL_PLATFORM_UNSUPPORTED;
-#ifndef __arm__
-    if (package->platform == PLATFORM_ARM)
-        return ERROR_INSTALL_PLATFORM_UNSUPPORTED;
-#endif
-#ifndef __aarch64__
-    if (package->platform == PLATFORM_ARM64)
+    if (!validate_package_platform( package->platform ))
         return ERROR_INSTALL_PLATFORM_UNSUPPORTED;
-#endif
-    if (package->platform == PLATFORM_X64)
-    {
-        if (!is_64bit && !is_wow64)
-            return ERROR_INSTALL_PLATFORM_UNSUPPORTED;
-        if (package->version < 200)
-            return ERROR_INSTALL_PACKAGE_INVALID;
-    }
+
+    if (package->platform == PLATFORM_X64 && package->version < 200)
+        return ERROR_INSTALL_PACKAGE_INVALID;
+
     if (!package->num_langids)
     {
         return ERROR_SUCCESS;