text: #include <stdlib.h>
  #include <stdio.h>
  
  #include "nal.h"
  
  const size_t INITLEN=5;
  
  int main(void)
  {
  	size_t len=INITLEN;
  	char* s=calloc(len, sizeof(char));
  
  	while(nalread(&s, &len, stdin)>0&&!feof(stdin))
  		fputs(s, stdout);
  
  	free(s);
  	return 0;
  }
  