dns: implement GetHostByName redirection (backend TODO)

stratosphere/ams_mitm/source/dns_mitm/serializer/serializer.cpp

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2018-2020 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <stratosphere.hpp>
+#include "../dnsmitm_debug.hpp"
+#include "serializer.hpp"
+
+namespace ams::mitm::socket::resolver::serializer {
+
+    ssize_t DNSSerializer::CheckToBufferArguments(const u8 *dst, size_t dst_size, size_t required, int error_id) {
+        if (dst == nullptr) {
+            return -1;
+        } else if (dst_size < required) {
+            return -1;
+        }
+
+        return 0;
+    }
+
+    u32 DNSSerializer::InternalHton(const u32 &v) {
+        return ams::socket::InetHtonl(v);
+    }
+
+    u16 DNSSerializer::InternalHton(const u16 &v) {
+        return ams::socket::InetHtons(v);
+    }
+
+    u32 DNSSerializer::InternalNtoh(const u32 &v) {
+        return ams::socket::InetNtohl(v);
+    }
+
+    u16 DNSSerializer::InternalNtoh(const u16 &v) {
+        return ams::socket::InetNtohs(v);
+    }
+
+
+}