#include <pcap.h>
#include <stdio.h>

#define BUFSIZE 65536

int main(int argc, char *argv[])
{
      char errBuf[256];
      const u_char *data;
      pcap_pkthdr *pkthdr;
      pcap_t *handle = pcap_open_live(argv[1], BUFSIZE, 1, 10, errBuf);
      if(handle == NULL){
         fprintf(stderr, "Couldn't open device %s : %s\n",  argv[1], errBuf);
         return 1;
      }
      while(true) {
          int res = pcap_next_ex(handle, &pkthdr, &data);
          if(res == 0) continue;
          if(res < 0) break;
          printf("%x\n", data);
      }
      return 0;
}