#include "stdio.h"

cat_internal(inf, outf)
FILE * inf;
FILE * outf;
{
  char buf[80];
  while(fgets(buf, 80, inf))
	fputs(buf, stdout);
}

main(argc, argv)
int argc;
char ** argv;
{
  FILE * inf;
  int i;
  int ch;

  if (argc > 1)
     for (i = 1 ; i < argc ; i++)
	{
	inf = fopen(argv[i], "r");
	if (inf == NULL)
		{
		fputs("Can't open '", stderr);
		fputs(argv[i], stderr);
		fputs("'\n", stderr);
		}
	    else
		{
		cat_internal(inf);
		fclose(inf);
		}
	}
   else
	cat_internal(stdin);
}