#include <iostream>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include <string.h>

using namespace std;
const int BUFFER_SIZE{1000};
const string SERVER_PATH{"/tmp/msgServer"};

int main(int argc, char * argv[])  {

     int socketFD{socket(AF_UNIX,SOCK_DGRAM, 0)};

     if (socketFD == -1) {
        perror("Error socket: ");
        return 1;
     }

     struct sockaddr_un address;
     int addrLen = sizeof(struct sockaddr_un);


     pid_t pid {getpid()};
     cout << "My pid is " << pid << endl;
     string path = "/tmp/pid" + to_string(pid);

     memset(&address, 0, addrLen);
     address.sun_family = AF_UNIX;
     strncpy(address.sun_path, path.c_str(), sizeof(address.sun_path)-1);

     if (bind(socketFD, reinterpret_cast<struct sockaddr *>(&address),
                                                           addrLen) == -1) {
         perror("Error bind: ");
         unlink(path.c_str());
         return 1;
     }

     struct sockaddr_un serverAddress;
     memset (&serverAddress, 0,  addrLen);
     serverAddress.sun_family = AF_UNIX;
     strncpy(serverAddress.sun_path, SERVER_PATH.c_str(), 
                                  sizeof(serverAddress.sun_path)-1);

     char buffer[BUFFER_SIZE];
     for(int i = 1; i < argc; ++i) {

         sendto(socketFD, argv[i], strlen(argv[i]), 0,
              reinterpret_cast<struct sockaddr *>(&serverAddress), addrLen );

         memset(buffer, 0, BUFFER_SIZE);
         recvfrom(socketFD, buffer, BUFFER_SIZE, 0, nullptr, nullptr);
         cout << "Got back a " << buffer << endl;
     }


     close(socketFD);
     unlink(path.c_str());
     return 0;
}