/*
 * cat.c
 *
 * This program accepts filename on the command line and prints the
 * conents of the file on the standard output
 */

#include <stdio.h>

int main (int argc, char *argv[]) {
        FILE    *f;	/* the file pointer */
        char    ch;	/* a character to read in */

	/* if wrong number of arguments, complain */

        if (argc != 2) {
                fprintf (stderr, "error: wrong number of args\n");
                exit (1);
        }

	/* try to open the file named in the first command line arg */

        f = fopen (argv[1], "r");
        if (!f) {

		/* oops, f was 0, something failed, let's exit */

                fprintf (stderr, "error opening file.\n");
                exit (1);
        }

	/* get a character from the file */

        ch = fgetc (f);

	/* while not at the end of file... */

        while (!feof (f)) {

		/* ... print the current character */

                putchar (ch);

		/* get another character from the file */

                ch = fgetc (f);
        }

	/* close the file */

        fclose (f);
	return 0;
}