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netgets(buff,len,sd)
     char *buff;
     int len,sd;
{
  int i;

  for(i=0;i<len;i++) {
    if(recv(sd,&buff[i],1,0)==0) return(i);
    if(buff[i]=='\r') buff[i--]=0;
    if(buff[i]=='\n') {
      buff[i]==0;
      return(i);
    }
  }
  return(i);
}