dns.mitm: add GetAddrInfo redir, AtmosphereReloadHostsFile, debug logging control

libraries/libstratosphere/include/stratosphere/socket/socket_errno.hpp

@@ -0,0 +1,48 @@
+/*
+ * 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/>.
+ */
+#pragma once
+#include <vapours.hpp>
+
+namespace ams::socket {
+
+    enum class Errno : u32 {
+        ESuccess =   0,
+        /* ... */
+        ENoSpc   =  28,
+        /* ... */
+    };
+
+    enum class HErrno : s32 {
+        Netdb_Internal = -1,
+        Netdb_Success  = 0,
+        Host_Not_Found = 1,
+        Try_Again      = 2,
+        No_Recovery    = 3,
+        No_Data        = 4,
+
+        No_Address     = No_Data,
+    };
+
+    enum class AiErrno : u32 {
+        EAi_Success = 0,
+        /* ... */
+    };
+
+    constexpr inline bool operator!(Errno e)   { return e == Errno::ESuccess; }
+    constexpr inline bool operator!(HErrno e)  { return e == HErrno::Netdb_Success; }
+    constexpr inline bool operator!(AiErrno e) { return e == AiErrno::EAi_Success; }
+
+}