X-Git-Url: https://git.dogcows.com/gitweb?p=chaz%2Fyoink;a=blobdiff_plain;f=src%2Fstlplus%2Fportability%2Fudp_sockets.cpp;fp=src%2Fstlplus%2Fportability%2Fudp_sockets.cpp;h=137be3d3d7a2c33baf38ae872d4ea699700467a7;hp=0000000000000000000000000000000000000000;hb=6b0a0d0efafe34d48ab344fca3b479553bd4e62c;hpb=85783316365181491a3e3c0c63659972477cebba

diff --git a/src/stlplus/portability/udp_sockets.cpp b/src/stlplus/portability/udp_sockets.cpp
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+++ b/src/stlplus/portability/udp_sockets.cpp
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+////////////////////////////////////////////////////////////////////////////////
+
+//   Author:    Daniel Milton adapted by Andy Rushton
+//   Copyright: (c) Daniel Milton, Andy Rushton 2009
+//   License:   BSD License, see ../docs/license.html
+
+////////////////////////////////////////////////////////////////////////////////
+
+#include "udp_sockets.hpp"
+
+////////////////////////////////////////////////////////////////////////////////
+
+namespace stlplus
+{
+
+  ////////////////////////////////////////////////////////////////////////////////
+  // UDP client
+  ////////////////////////////////////////////////////////////////////////////////
+
+  // create an uninitialised socket
+  UDP_client::UDP_client(void) : IP_socket(UDP)
+  {
+  }
+
+  // Send/Receive datagram packets to/from the given address/remote port on the local port.
+  // Enables default send to remote address/port
+  // - remote_address: IP name or number of remote host
+  // - remote_port: port number of remote host
+  // - local_port: port number to receive on - 0 to get an ephemeral port.
+  UDP_client::UDP_client(const std::string& remote_address, unsigned short remote_port, unsigned short local_port) :
+    IP_socket(UDP)
+  {
+    initialise(remote_address, remote_port, local_port);
+  }
+
+  // Send/Receive datagram packets to/from the given address/remote port on the given local port
+  // Enables default send to remote address/port
+  // - remote_address: IP address of remote host - pre-looked-up using ip_lookup
+  // - remote_port: port number of remote host
+  // - local_port: port number to receive on - 0 to get an ephemeral port.
+  UDP_client::UDP_client(unsigned long remote_address, unsigned short remote_port, unsigned short local_port) :
+    IP_socket(UDP)
+  {
+    initialise(remote_address, remote_port, local_port);
+  }
+
+  // Send/Receive datagram packets to/from the given address/remote port on the local port.
+  // Enables default send to remote address/port
+  // - remote_address: IP name or number of remote host
+  // - remote_port: port number of remote host
+  // - local_port: port number to receive on - 0 to get an ephemeral port.
+  // - returns a success flag
+  bool UDP_client::initialise(const std::string& address, unsigned short remote_port, unsigned short local_port)
+  {
+    // lookup the address and convert it into an IP number
+    unsigned long remote_address = IP_socket::ip_lookup(address);
+    if (!remote_address) return false;
+    return initialise(remote_address, remote_port, local_port);
+  }
+
+  // Send/Receive datagram packets to/from the given address/remote port on the given local port
+  // Enables default send to remote address/port
+  // - remote_address: IP address of remote host - pre-looked-up using ip_lookup
+  // - remote_port: port number of remote host
+  // - local_port: port number to receive on - 0 to get an ephemeral port.
+  // - returns a success flag
+  bool UDP_client::initialise(unsigned long remote_address, unsigned short remote_port, unsigned short local_port)
+  {
+    if (!IP_socket::bind(remote_address, local_port)) return false;
+    return IP_socket::connect(remote_address, remote_port);
+  }
+
+  // send to the remote address/port setup in initialise, from the local port also setup in initialise.
+  // send data through the socket as a single datagram
+  // - packet: string containing data to be sent - if data is successfully sent it is removed
+  // - returns success flag
+  bool UDP_client::send(std::string& packet)
+  {
+    return IP_socket::send_packet(packet);
+  }
+
+  // datagram receive
+  // - packet: string to receive data from datagram - if data is successfully sent it is appended
+  // - returns success flag - i.e. packet successfully received
+  bool UDP_client::receive(std::string& packet)
+  {
+    return IP_socket::receive_packet(packet);
+  }
+
+  ////////////////////////////////////////////////////////////////////////////////
+  // UDP Server
+  ////////////////////////////////////////////////////////////////////////////////
+
+  // create an uninitialised socket
+  UDP_server::UDP_server(void) : IP_socket(UDP)
+  {
+  }
+
+  // Initialise socket.
+  // Receive datagram packets from any address on provided local receiving port.
+  // No default send possible.
+  // - local_port: port number to receive on - 0 to get an ephemeral port.
+  UDP_server::UDP_server(unsigned short local_port) : IP_socket(UDP)
+  {
+    initialise(local_port);
+  }
+
+  // Initialise socket.
+  // Receive datagram packets from any address on provided local receiving port.
+  // No default send possible.
+  // - local_port: port number to receive on - 0 to get an ephemeral port.
+  // - returns a success flag
+  bool UDP_server::initialise(unsigned short local_port)
+  {
+    return IP_socket::bind_any(local_port);
+  }
+
+  // send to the address/port given here, from the local port setup in initialise.
+  // send data through the socket as a single datagram
+  // - packet: string containing data to be sent - if data is successfully sent it is removed
+  // - remote_address: IP name (stlplus.sourceforge.net) or dotted number (216.34.181.96)
+  // - remote_port: port number of remote host
+  // - returns success flag
+  bool UDP_server::send(std::string& packet, const std::string& remote_address, unsigned short remote_port)
+  {
+    unsigned long ip_address = ip_lookup(remote_address);
+    if (ip_address == 0) return false;
+    return send(packet, ip_address, remote_port);
+  }
+
+  // send to the address/port given here, from the local port setup in initialise.
+  // send data through the socket as a single datagram
+  // - packet: string containing data to be sent - if data is successfully sent it is removed
+  // - remote_address: pre-looked-up IP address of remote host
+  // - remote_port: port number of remote host
+  // - returns success flag
+  bool UDP_server::send(std::string& packet, unsigned long remote_address, unsigned short remote_port)
+  {
+    return IP_socket::send_packet(packet, remote_address, remote_port);
+  }
+
+  // datagram receive
+  // - packet: string to receive data from datagram - if data is successfully sent it is appended
+  // - remote_address: the address of the client that sent the packet, can then be used to reply
+  // - remote_port: the port of the client that sent the packet, can then be used to reply
+  // - returns success flag - i.e. packet successfully received
+  bool UDP_server::receive(std::string& packet, unsigned long& remote_address, unsigned short& remote_port)
+  {
+    return IP_socket::receive_packet(packet, remote_address, remote_port);
+  }
+
+  /////////////////////////////////////////////////////////////////////////////
+  // fire and forget UDP client packet send function
+  ////////////////////////////////////////////////////////////////////////////////
+
+  bool UDP_send(const std::string& packet,
+                const std::string& remote_address, unsigned short remote_port, unsigned short local_port)
+  {
+    UDP_client client(remote_address, remote_port, local_port);
+    if (!client.initialised()) return false;
+    std::string packet_copy = packet;
+    return client.send(packet_copy);
+  }
+
+  /////////////////////////////////////////////////////////////////////////////
+
+} // end namespace stlplus