Improve support for different Windows SDK versions

Author: onethumb

php_crc_fast.cpp

@@ -19,15 +19,23 @@ extern "C" {
 
 // Define htonll/ntohll for platforms that don't provide them
 #if defined(_WIN32) || defined(_WIN64)
-    // Windows doesn't provide htonll/ntohll, so we define them here
-    // Windows is always little-endian on x86/x64/ARM
-    #ifndef htonll
-        inline uint64_t htonll(uint64_t x) {
-            return (((uint64_t)htonl((uint32_t)(x & 0xFFFFFFFF))) << 32) | htonl((uint32_t)(x >> 32));
-        }
-        inline uint64_t ntohll(uint64_t x) {
-            return (((uint64_t)ntohl((uint32_t)(x & 0xFFFFFFFF))) << 32) | ntohl((uint32_t)(x >> 32));
-        }
+    // Windows SDK 10.0.26100.0+ provides htonll/ntohll in winsock2.h
+    // For older SDK versions, we need to define them ourselves
+    #include <winsock2.h>
+    
+    // Check if we're using an older Windows SDK that doesn't have these functions
+    // The functions were added in Windows SDK 10.0.26100.0
+    #if !defined(NTDDI_WIN10_NI) || NTDDI_VERSION < NTDDI_WIN10_NI
+        #ifndef htonll
+            inline uint64_t htonll(uint64_t x) {
+                return (((uint64_t)htonl((uint32_t)(x & 0xFFFFFFFF))) << 32) | htonl((uint32_t)(x >> 32));
+            }
+        #endif
+        #ifndef ntohll
+            inline uint64_t ntohll(uint64_t x) {
+                return (((uint64_t)ntohl((uint32_t)(x & 0xFFFFFFFF))) << 32) | ntohl((uint32_t)(x >> 32));
+            }
+        #endif
     #endif
 #else
     // Unix-like platforms