Rearranged the network and socket code.origin

Added status messages sent over the network using udp packets.

1 files changed, 108 insertions, 0 deletions

diff --git a/lib/udp_socket.cc b/lib/udp_socket.cc
new file mode 100644
index 0000000..9668cc6
--- /dev/null
+++ b/lib/udp_socket.cc
@@ -0,0 +1,108 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            udp_socket.cc
+ *
+ *  Fri Aug 18 00:12:25 CEST 2006
+ *  Copyright  2006 Bent Bisballe Nyeng
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of MIaV.
+ *
+ *  MIaV is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  MIaV is distributed in the hope that 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 MIaV; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#include "udp_socket.h"
+
+#include <errno.h>
+
+// For socket
+#include <sys/types.h>
+#include <sys/socket.h>
+
+// For UDP
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+// For inet_ntoa
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include "info.h"
+
+UDPSocket::UDPSocket(int port, std::string addr) : Socket(port, addr)
+{
+  sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+  if(sock == -1) MIaV::info->error("Could not create UDP socket: %s", strerror(errno));
+}
+
+int UDPSocket::write(void *buf, int size)
+{
+  int n;
+    
+  if(!connected) {
+    memset((char *) &sa, sizeof(sa), 0);
+    sa.sin_family = AF_INET;
+    sa.sin_port = htons(prt);
+    if (inet_aton(addr.c_str(), &sa.sin_addr)==0) {
+      MIaV::info->error("An error occurred in inet_aton! %s", strerror(errno));
+    }
+    connected = true;
+  }
+  
+  n = sendto(sock, buf, size, 0, (const sockaddr*)&sa, (socklen_t)sizeof(sa));
+
+  if(n==-1) {
+    MIaV::info->error("An error occurred! %s", strerror(errno));
+  }
+
+  return n;
+}
+
+int UDPSocket::read(void *buf, int size)
+{
+  int n;
+
+  if(!connected) {
+    struct sockaddr_in si_me;
+    si_me.sin_family = AF_INET;
+    si_me.sin_port = htons(prt);
+    si_me.sin_addr.s_addr = htonl(INADDR_ANY);
+
+    if (bind(sock, (const sockaddr*)&si_me, (socklen_t)sizeof(si_me))==-1) {
+      strerr = "UDPSocet failed on bind. ";
+      strerr.append(strerror(errno));
+      return -1;
+    }
+
+    connected = true;
+  }
+
+  int slen = sizeof(sa);
+  n = recvfrom(sock, buf, size, 0, (sockaddr*)&sa, (socklen_t*)&slen);
+
+  if(n == -1) {
+    strerr = "UDPSocet failed on read. ";
+    strerr.append(strerror(errno));
+    return -1;
+  }
+
+  // Fill in the host data.
+  setAddress(inet_ntoa(sa.sin_addr));
+  setPort(sa.sin_port);
+
+  return n;
+}