Sockets between D and C(++) app

[FreeSlave]

It's only server. Maybe problem is on client side.

Try this if you are on Linux:

//Linux C client
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stddef.h>
#include <string.h>
#include <stdio.h>

int main()
{
     int sock, res;
     struct sockaddr_in addr;
     const char* hello;
     size_t len;

     sock = socket(AF_INET, SOCK_DGRAM, 0);
     if (sock < 0)
     {
         printf("Can't create socket\n");
         return -1;
     }

     addr.sin_family = AF_INET;
     addr.sin_port = htons(5432);
     addr.sin_addr.s_addr = inet_addr("127.0.0.1");

     hello = "Hello from C";
     len = strlen(hello);
     while (1)
     {
         res = sendto(sock, hello, len, 0, (struct 
sockaddr*)&addr, sizeof(addr));
         if (res <= 0)
         {
             printf("Can't send\n");
             return -1;
         }
     }
     close(sock);
     return 0;
}


//D server
import std.socket;
import std.stdio;

int main(string[] args)
{
     auto s = new UdpSocket(AddressFamily.INET);

     auto addr = new InternetAddress("127.0.0.1", 5432);
     s.setOption(SocketOptionLevel.IP, SocketOption.REUSEADDR, 
true);
     s.bind(addr);

     while (true)
     {
         ubyte[2048] recv_buf;
         int count = s.receiveFrom(recv_buf[]);
         char[] test = cast(char[])recv_buf;

         writefln("Received: %s\n", test);
     }
     return 0;
}


Note that you don't need to remove zero-symbol if you don't pass 
it from client.