1 files changed, 98 insertions, 0 deletions
diff --git a/src/oscpack/NetworkingUtils.cpp b/src/oscpack/NetworkingUtils.cpp
new file mode 100644
index 0000000..e6a7a54
--- /dev/null
+++ b/src/oscpack/NetworkingUtils.cpp
@@ -0,0 +1,98 @@
+/*
+    oscpack -- Open Sound Control packet manipulation library
+    http://www.audiomulch.com/~rossb/oscpack
+
+    Copyright (c) 2004-2005 Ross Bencina <rossb@audiomulch.com>
+
+    Permission is hereby granted, free of charge, to any person obtaining
+    a copy of this software and associated documentation files
+    (the "Software"), to deal in the Software without restriction,
+    including without limitation the rights to use, copy, modify, merge,
+    publish, distribute, sublicense, and/or sell copies of the Software,
+    and to permit persons to whom the Software is furnished to do so,
+    subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be
+    included in all copies or substantial portions of the Software.
+
+    Any person wishing to distribute modifications to the Software is
+    requested to send the modifications to the original developer so that
+    they can be incorporated into the canonical version.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+    IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
+    ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+    CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+    WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+#include "NetworkingUtils.h"
+
+#ifdef WIN32
+#include <winsock2.h>   // this must come first to prevent errors with MSVC7
+#include <windows.h>
+#include <stdlib.h>
+
+static LONG initCount_ = 0;
+static bool winsockInitialized_ = false;
+#else
+#include <netdb.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <string.h>
+#endif
+
+#include <stdio.h>
+
+NetworkInitializer::NetworkInitializer()
+{
+#ifdef WIN32
+    if( InterlockedIncrement( &initCount_ ) == 1 ){
+        // there is a race condition here if one thread tries to access
+        // the library while another is still initializing it. 
+        // i can't think of an easy way to fix it so i'm telling you here
+        // incase you need to init the library from two threads at once.
+        // this is why the header file advises to instantiate one of these 
+        // in main() so that the initialization happens globally
+
+        // initialize winsock
+        WSAData wsaData;
+        int nCode = WSAStartup(MAKEWORD(1, 1), &wsaData);
+        if( nCode != 0 ){
+            //std::cout << "WSAStartup() failed with error code " << nCode << "\n";
+        }else{
+            winsockInitialized_ = true;
+        }
+    }
+#endif
+}
+
+NetworkInitializer::~NetworkInitializer()
+{
+#ifdef WIN32
+    if( InterlockedDecrement( &initCount_ ) == 0 ){
+        if( winsockInitialized_ ){
+            WSACleanup();
+            winsockInitialized_ = false;
+        }
+    }
+#endif
+}
+
+
+unsigned long GetHostByName( const char *name )
+{
+    NetworkInitializer networkInitializer;
+
+    unsigned long result = 0;
+
+    struct hostent *h = gethostbyname( name );
+    if( h ){
+        struct in_addr a;
+        memcpy( &a, h->h_addr_list[0], h->h_length );
+        result = ntohl(a.s_addr);
+    }
+
+    return result;
+}