hexapod_ng/legacy/linux/ikd/sender.c

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <netinet/in.h>

#include "message.h"

int unix_socket_fd;

struct licks_message message;

struct sockaddr_un localaddr;
struct sockaddr_un remoteaddr;
socklen_t remoteaddr_len;

char *ikd_path="/tmp/ikd";

int
main(int argc, char **argv) {
   int l,i;

   // create socket
   unix_socket_fd=socket(PF_LOCAL,SOCK_DGRAM,0);
   if(unix_socket_fd==-1) {
      perror("socket");
      exit(0);
   }
   printf("socket %d\n",unix_socket_fd);


   // bind to socket, localaddr is the pid
   sprintf(localaddr.sun_path,"/tmp/client%d",getpid());
   localaddr.sun_family=AF_LOCAL;
//   localaddr.sun_len=strlen(localaddr.sun_path)+1;
   if(bind(unix_socket_fd,(struct sockaddr *)&localaddr,sizeof(struct sockaddr_un))) {
      perror("bind");
      exit(0);
   }
   printf("bound\n");





   message.type=MSG_CHAR_ARRAY;
   for(i=0;i<32;i++) {
      message.char_array[i]=i;
   }

   remoteaddr.sun_family=AF_LOCAL;
//   remoteaddr.sun_len=strlen(ikd_path);
   strcpy(remoteaddr.sun_path,ikd_path);

   l=sendto(unix_socket_fd,&message,sizeof(message),0,(struct sockaddr *)&remoteaddr,sizeof(struct sockaddr_un));
   printf("sendto: %d\n",l);
   if(l==-1) {
      perror("sendto");
   }   

         remoteaddr_len=sizeof(struct sockaddr_un);
         l=recvfrom(unix_socket_fd,&message,sizeof(struct licks_message),0,(struct sockaddr *)&remoteaddr,&remoteaddr_len);
         printf("recvfrom: %d\n",l);
//         printf("sun_len: %d\n",remoteaddr.sun_len);
         printf("sun_addr: %s\n",remoteaddr.sun_path);
         printf("message type: %d\n",message.type);
         for(i=0;i<32;i++) {
            if(!(i%8)) { printf("\n"); }
            printf("%02x ",message.char_array[i]);
         }

   printf("\n");
   close(unix_socket_fd);
   unlink(localaddr.sun_path);   
   return 0;
}