1 files changed, 151 insertions, 0 deletions
diff --git a/lib/network.cc b/lib/network.cc
new file mode 100644
index 0000000..799bc98
--- /dev/null
+++ b/lib/network.cc
@@ -0,0 +1,151 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            network.cc
+ *
+ *  Wed Nov  3 21:23:14 CET 2004
+ *  Copyright  2004 Bent Bisballe
+ *  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 <config.h>
+#include "network.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/socket.h> 
+
+Network::Network(Socket *gs, Info *ginfo)
+{
+  info = ginfo;
+  s = gs;
+}
+
+Network::~Network()
+{
+}
+
+int Network::write(void *buf, int size)
+{
+  if(!s->isConnected()) {
+    //    info->error("Write attempted to a socket not connected!");
+    return -1;
+  }
+  int n = send(s->ssocket, buf, size, MSG_WAITALL);
+
+  if(n == -1) {
+    info->error("An error occurred!");
+  }
+
+  return n;
+}
+
+int Network::read(void *buf, int size)
+{
+  if(!s->isConnected()) {
+    //    info->error("Read attempted from a socket not connected!");
+    return -1;
+  }
+  int n = recv(s->ssocket, buf, size, MSG_WAITALL);
+
+  if(n == -1) {
+    info->error("An error occurred!");
+  }
+
+  return n;
+}
+
+/*
+struct  msghdr {
+  void          *msg_name        // Optional address.
+  socklen_t      msg_namelen     // Size of address.
+  struct iovec  *msg_iov         // Scatter/gather array.
+  int            msg_iovlen      // Members in msg_iov.
+  void          *msg_control     // Ancillary data; see below.
+  socklen_t      msg_controllen  // Ancillary data buffer len.
+  int            msg_flags       // Flags on received message.
+};
+*/
+
+int Network::sendPackage(n_header *h, void* buf, int bufsz)
+{
+  struct msghdr msg;
+  struct iovec iovecs[2];
+
+  if(!s->isConnected()) {
+    //    info->error("Write attempted to a socket not connected!");
+    return -1;
+  }
+
+  memset(&msg, 0, sizeof(msg));
+  
+  msg.msg_iov = iovecs;
+  msg.msg_iovlen = 2;
+
+  msg.msg_iov[0].iov_base = h;
+  msg.msg_iov[0].iov_len = sizeof(*h);
+
+  msg.msg_iov[1].iov_base = buf;
+  msg.msg_iov[1].iov_len = bufsz;
+
+  int n = sendmsg(s->ssocket, &msg, 0);
+  if(n < 0) {
+    info->error("A network error ocurred during sendPackage!");
+    return -1;
+  }
+
+  return n;
+}
+
+int Network::recvPackage(n_header *h, void* buf, int bufsz)
+{	
+  struct msghdr msg;
+  struct iovec iovecs[2];
+
+  if(!s->isConnected()) {
+    //    info->error("Read attempted to a socket not connected!");
+    return -1;
+  }
+
+  memset(&msg, 0, sizeof(msg));
+  
+  iovecs[0].iov_base = h;
+  iovecs[0].iov_len = sizeof(*h);
+  
+  iovecs[1].iov_base = buf;
+  iovecs[1].iov_len = bufsz;
+  
+  msg.msg_iov = iovecs;
+  msg.msg_iovlen = 2;
+
+  int n = recvmsg(s->ssocket, &msg, MSG_WAITALL);
+
+  if(n < 0) {
+    info->error("A network error ocurred during recvPackage!");
+    return -1;
+  }
+
+  if(msg.msg_iovlen != 2) {
+    info->error("Wrong package format!");
+    return -1;
+  }
+  return n;
+}
+