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authordeva <deva>2006-08-25 21:20:07 +0000
committerdeva <deva>2006-08-25 21:20:07 +0000
commit8196872e3b240ef93fc17dd3c05a7d97a8015d88 (patch)
treee531edeb1c7178a8e58170c84645ce8eb706624e /lib/udp_socket.cc
parent347b1d8ed3a4f780f3a5c0d57a04eab05ca517a2 (diff)
Rearranged the network and socket code.origin
Added status messages sent over the network using udp packets.
Diffstat (limited to 'lib/udp_socket.cc')
-rw-r--r--lib/udp_socket.cc108
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;
+}