Fix bug #5453 "Help->About Wireshark mis-reports OS" (again) without the help of...

svn path=/trunk/; revision=35090

diff --git a/version_info.c b/version_info.c
index 32f99fca4e5c27b151901e82199868dc1af3533d..68b6a1c369f595cd7f3eefb8efd0a233a8462947 100644 (file)
--- a/version_info.c
+++ b/version_info.c
@@ -180,6 +180,10 @@ get_compiled_version_info(GString *str, void (*prepend_info)(GString *),
        end_string(str);
 }
 
+#ifdef _WIN32
+typedef void (WINAPI *nativesi_func_ptr)(LPSYSTEM_INFO);
+#endif
+
 /*
  * Get various library run-time versions, and the OS version, and append
  * them to the specified GString.
@@ -190,6 +194,7 @@ get_runtime_version_info(GString *str, void (*additional_info)(GString *))
 #if defined(_WIN32)
        OSVERSIONINFOEX info;
        SYSTEM_INFO system_info;
+       nativesi_func_ptr nativesi_func;
 #elif defined(HAVE_SYS_UTSNAME_H)
        struct utsname name;
 #endif
@@ -229,7 +234,13 @@ get_runtime_version_info(GString *str, void (*additional_info)(GString *))
        }
 
        memset(&system_info, '\0', sizeof system_info);
-       GetSystemInfo(&system_info);    /* only for W2K or greater .... (which is what we support) */
+       /* Look for and use the GetNativeSystemInfo() function if available to get the correct processor
+        * architecture even when running 32-bit Wireshark in WOW64 (x86 emulation on 64-bit Windows) */
+       nativesi_func = GetProcAddress(GetModuleHandle(_T("kernel32.dll")), "GetNativeSystemInfo");
+       if(nativesi_func)
+               nativesi_func(&system_info);
+       else    
+               GetSystemInfo(&system_info);
 
        switch (info.dwPlatformId) {