From a15cf65c44d5c224169c32ef5495b68c758134b7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= <jff@merkur>
Date: Sun, 18 May 2014 16:08:14 +0200
Subject: Imported Upstream version 3.3.0.2

---
 libcult/cult/os/net/ipv4/datagram-socket.hxx | 282 +++++++++++++++++++++++++++
 1 file changed, 282 insertions(+)
 create mode 100644 libcult/cult/os/net/ipv4/datagram-socket.hxx

(limited to 'libcult/cult/os/net/ipv4/datagram-socket.hxx')

diff --git a/libcult/cult/os/net/ipv4/datagram-socket.hxx b/libcult/cult/os/net/ipv4/datagram-socket.hxx
new file mode 100644
index 0000000..2aad43f
--- /dev/null
+++ b/libcult/cult/os/net/ipv4/datagram-socket.hxx
@@ -0,0 +1,282 @@
+// file      : cult/os/net/ipv4/datagram-socket.hxx
+// author    : Boris Kolpackov <boris@kolpackov.Net>
+// copyright : Copyright (c) 2005-2010 Boris Kolpackov
+// license   : GNU GPL v2 + exceptions; see accompanying LICENSE file
+
+#ifndef CULT_OS_NET_IPV4_DATAGRAM_SOCKET_HXX
+#define CULT_OS_NET_IPV4_DATAGRAM_SOCKET_HXX
+
+#include <cult/types.hxx>
+
+#include <cult/os/net/address.hxx>
+#include <cult/os/net/datagram-socket.hxx>
+#include <cult/os/net/ipv4/address.hxx>
+
+#include <unistd.h>     // close
+#include <sys/socket.h> // socket, bind, sendto, revcfrom
+
+namespace Cult
+{
+  namespace OS
+  {
+    namespace Net
+    {
+      namespace IPv4
+      {
+        class DatagramSocket: public virtual Net::DatagramSocket
+        {
+        public:
+          virtual
+          ~DatagramSocket ()
+          {
+            ::close (sock_);
+          }
+
+          DatagramSocket ()
+          {
+            sock_ = ::socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+
+            if (sock_ == -1)
+              throw Exception (); //@@
+          }
+
+          DatagramSocket (Address const& addr)
+          {
+            sock_ = ::socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+
+            if (sock_ == -1)
+              throw Exception (); //@@
+
+            if (::bind (sock_, addr.raw_addr (), addr.raw_size ()) == -1)
+              throw Exception (); //@@
+          }
+
+        public:
+          virtual sa_family_t
+          familiy () const
+          {
+            return AF_INET;
+          }
+
+          virtual Int
+          protocol () const
+          {
+            return IPPROTO_UDP;
+          }
+
+          // Options.
+          //
+        public:
+          Size
+          recv_buffer_size () const
+          {
+            Int r;
+            socklen_t s (sizeof (r));
+
+            if (::getsockopt (sock_,
+                              SOL_SOCKET,
+                              SO_RCVBUF,
+                              &r,
+                              &s) == -1)
+              {
+                throw Exception (); //@@
+              }
+
+            return static_cast<Size> (r);
+          }
+
+          Void
+          recv_buffer_size (Size size)
+          {
+            Int r (static_cast<Int> (size));
+
+            if (::setsockopt (sock_,
+                              SOL_SOCKET,
+                              SO_RCVBUF,
+                              &r,
+                              sizeof (r)) == -1)
+              {
+                throw Exception ();
+              }
+          }
+
+          Size
+          send_buffer_size () const
+          {
+            Int r;
+            socklen_t s (sizeof (r));
+
+            if (::getsockopt (sock_,
+                              SOL_SOCKET,
+                              SO_SNDBUF,
+                              &r,
+                              &s) == -1)
+              {
+                throw Exception ();
+              }
+
+            return static_cast<Size> (r);
+          }
+
+          void
+          send_buffer_size (Size size)
+          {
+            Int r (static_cast<Int> (size));
+
+            if (::setsockopt (sock_,
+                              SOL_SOCKET,
+                              SO_SNDBUF,
+                              &r,
+                              sizeof (r)) == -1)
+              {
+                throw Exception ();
+              }
+          }
+
+        public:
+          Void
+          connect (Address const& addr)
+          {
+            if (::connect (sock_, addr.raw_addr (), addr.raw_size ()) == -1)
+              throw Exception ();
+          }
+
+          Address
+          address () const
+          {
+            sockaddr_in raw_addr;
+            socklen_t raw_size (sizeof (raw_addr));
+
+            if (::getsockname (sock_,
+                               reinterpret_cast<sockaddr*> (&raw_addr),
+                               &raw_size) == -1)
+            {
+              throw Exception ();
+            }
+
+            return Address (raw_addr);
+          }
+
+
+        public:
+          virtual Size
+          send (Void const* buf, Size size, Net::Address const& addr)
+          {
+            if (addr.familiy () != familiy ())
+              throw InvalidAddress ();
+
+            return send (buf, size, dynamic_cast<Address const&> (addr));
+          }
+
+          virtual Size
+          send (Void const* buf, Size size, Address const& addr)
+          {
+            ssize_t n (::sendto (sock_,
+                                 buf,
+                                 size,
+                                 0,
+                                 addr.raw_addr (),
+                                 addr.raw_size ()));
+
+            if (n == -1)
+              throw Exception ();
+
+            return static_cast<Size> (n);
+          }
+
+          virtual Size
+          recv (Void* buf, Size size)
+          {
+            ssize_t n (::recvfrom (sock_, buf, size, 0, 0, 0));
+
+            if (n == -1)
+              throw Exception ();
+
+            return static_cast<Size> (n);
+          }
+
+          virtual Size
+          recv (Void* buf, Size size, Address& addr)
+          {
+            sockaddr_in raw_addr;
+            socklen_t raw_size (sizeof (raw_addr));
+
+            ssize_t n (::recvfrom (sock_,
+                                   buf,
+                                   size,
+                                   0,
+                                   reinterpret_cast<sockaddr*> (&raw_addr),
+                                   &raw_size));
+
+            if (n == -1)
+              throw Exception ();
+
+            addr = Address (raw_addr);
+
+            return static_cast<Size> (n);
+          }
+
+          virtual Size
+          peek (Void* buf, Size size, Address& addr)
+          {
+            sockaddr_in raw_addr;
+            socklen_t raw_size (sizeof (raw_addr));
+
+            ssize_t n (::recvfrom (sock_,
+                                   buf,
+                                   size,
+                                   MSG_PEEK,
+                                   reinterpret_cast<sockaddr*> (&raw_addr),
+                                   &raw_size));
+
+            if (n == -1)
+              throw Exception ();
+
+            addr = Address (raw_addr);
+
+            return static_cast<Size> (n);
+          }
+
+          /*
+          virtual Boolean
+          recv (Void* buf,
+                Size size,
+                Size& received,
+                OS::Time const& timeout)
+          {
+            fd_set r,e;
+
+            FD_ZERO (&r);
+            FD_ZERO (&e);
+
+            FD_SET (sock_, &r);
+            FD_SET (sock_, &e);
+
+            int n = ::pselect (sock_ + 1, &r, 0, &e, &timeout.timespec (), 0);
+
+            if (n > 0)
+            {
+              recv_size = recv (buf, buf_size);
+              return true;
+            }
+            else if (n == 0) // timeout
+            {
+              return false;
+            }
+            else
+            {
+              throw Failure ("pselect");
+            }
+          }
+          */
+
+        protected:
+          Int sock_;
+        };
+      }
+    }
+  }
+}
+
+
+#endif  // CULT_OS_NET_IPV4_DATAGRAM_SOCKET_HXX
-- 
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