Mayaqua: add new FreeSafe() function which calls Free() and set the pointer's value to NULL

src/Mayaqua/Memory.c

@@ -3777,6 +3777,13 @@ void Free(void *addr)
 	InternalFree(tag);
 }
 
+// Free and set pointer's value to NULL
+void FreeSafe(void **addr)
+{
+	Free(*addr);
+	*addr = NULL;
+}
+
 // Check the memtag
 void CheckMemTag(MEMTAG *tag)
 {

src/Mayaqua/Memory.h

@@ -276,6 +276,7 @@ void *ZeroMalloc(UINT size);
 void *ZeroMallocEx(UINT size, bool zero_clear_when_free);
 void *ReAlloc(void *addr, UINT size);
 void Free(void *addr);
+void FreeSafe(void **addr);
 void CheckMemTag(MEMTAG *tag);
 UINT GetMemSize(void *addr);
 

src/Mayaqua/Network.c

@@ -20564,7 +20564,7 @@ HTTP_HEADER *RecvHttpHeader(SOCK *s)
 	// Split into tokens
 	token = ParseToken(str, " ");
 
-	Free(str);
+	FreeSafe((void **)&str);
 
 	if (token->NumTokens < 3)
 	{
@@ -20590,18 +20590,18 @@ HTTP_HEADER *RecvHttpHeader(SOCK *s)
 		if (IsEmptyStr(str))
 		{
 			// End of header
-			Free(str);
+			FreeSafe((void **)&str);
 			break;
 		}
 
 		if (AddHttpValueStr(header, str) == false)
 		{
-			Free(str);
+			FreeSafe((void **)&str);
 			FreeHttpHeader(header);
 			break;
 		}
 
-		Free(str);
+		FreeSafe((void **)&str);
 	}
 
 	return header;