#include "file.h"

void filecopy(FILE *ifp, FILE *ofp) {
     int c;

     while ((c = getc(ifp)) != EOF)
	    putc(c, ofp);
}

int main(int argc, char *argv[]) {
     FILE *fp;
     void filecopy(FILE *, FILE *);

     if (argc == 1)
	  filecopy(stdin, stdout);
     else
	  while (--argc > 0)
	       if ((fp = fopen(*++argv, "r")) == NULL) {
		    printf("cat: can't open %s\n", *argv);
		    return 1;
	       } else {
		    filecopy(fp, stdout);
		    fclose(fp);
	       }

     return 0;
}