added net module

source/core/net/error.cpp

@@ -0,0 +1,38 @@
+#include "matador/net/error.hpp"
+#include "matador/utils/os.hpp"
+
+#include <stdexcept>
+
+#ifdef _WIN32
+#include <WS2tcpip.h>
+#else
+#include <netdb.h>
+#endif
+
+namespace matador {
+namespace detail {
+
+void throw_logic_error(const char* msg)
+{
+  throw std::logic_error(msg);
+}
+
+void throw_logic_error_with_errno(const char* msg, int err)
+{
+  char error_buffer[1024];
+  os::strerror(err, error_buffer, 1024);
+
+  char message_buffer[1024];
+  os::sprintf(message_buffer, 1024, msg, error_buffer);
+  throw std::logic_error(message_buffer);
+}
+
+void throw_logic_error_with_gai_errno(const char* msg, int err)
+{
+  char message_buffer[1024];
+  os::sprintf(message_buffer, 1024, msg, gai_strerror(err));
+  throw std::logic_error(message_buffer);
+}
+
+}
+}