#include <stdio.h>
#include <sys/socket.h>
#include <netinet/in.h>

#define BS 4096

int main(int argc,char *argv[]) {
 int s;
 struct sockaddr_in name;
 char *tmp;
 char chunk[BS];
 int off=0;
 char buf[BS];
 int len=sizeof(struct sockaddr_in);
 if(argc < 3) {
  printf("usage: urcdump serv port\n");
  return -2;
 }
 s=socket(PF_INET,SOCK_STREAM,6);
 memset(&name,0,len);
 name.sin_family=AF_INET;
 name.sin_addr.s_addr=inet_addr(argv[1]);
 name.sin_port=htons(atoi(argv[2]));
 setlinebuf(stdout);
 if(connect(s,(struct sockaddr *)&name,len) == -1) return -1;

 while((len=read(s,buf,BS-1)) > 0) {
  memcpy(chunk+off,buf,len);
  off+=len;
  if(off > 26) {
   if((tmp=memchr(chunk+26,'\n',off-26))) {
    tmp++;
    write(1,chunk+26,tmp-chunk-26);
    memmove(chunk,tmp,tmp-chunk+1);
    off-=(tmp-chunk);
   }
  }
 }
}