if(strncmp(buf,"DELETE ", 4) != 0){ //check the command is DELETE /?
  write(clientfd, msg000, strlen(msg000));
  close(clientfd);
  continue;
}

count = 0;
for(i=4; i<strlen(buf);) {
  fileName[count++] = buf[i++];
  if (buf[i] == ' ') continue;
}
fileName[count] = '';

printf("ws: finename1=%sn", fileName);

if(strlen(fileName) == 0) {
  strcpy(fileName,"./index.html");
}
printf("ws: finename2=%sn", fileName);
   }