posix/socket: add wrappers for connect and bind

posix/socket.cpp

@@ -136,6 +136,30 @@ socket::operator= (socket &&rhs) noexcept
 
 ///////////////////////////////////////////////////////////////////////////////
 void
+socket::bind (sockaddr_in const &addr)
+{
+    util::posix::error::try_code (
+        ::bind (
+            native (),
+            reinterpret_cast<sockaddr const*> (&addr),
+            sizeof (addr)
+        )
+    );
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+void
+socket::connect (sockaddr_in const &addr)
+{
+    util::posix::error::try_code (
+        ::connect (native (), reinterpret_cast<sockaddr const*>(&addr), sizeof (addr))
+    );
+}
+
+
+//-----------------------------------------------------------------------------
+void
 socket::connect (util::view<const char*> host, int port)
 {
     const lookup l { host, port };

posix/socket.hpp

@@ -25,6 +25,8 @@
 #include <sys/socket.h>
 
 
+struct sockaddr_in;
+
 namespace util::posix {
      class socket : public fd {
      public:
@@ -46,6 +48,9 @@ namespace util::posix {
          // because windows...
          ~socket ();
 
+         void bind (::sockaddr_in const&);
+
+         void connect (::sockaddr_in const&);
          void connect (util::view<const char*> host, int port);
          void shutdown ();