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path: root/C/HF/chap8/src/ecat.c
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#include <stdio.h>
#include <libs/xor.h>
#include <libs/encrypt.h>

int main(int argc, char **argv)
{
	FILE *fd;
	char buf[80];

	char f = '\0';

	encrypt_arr_t fn_arr = {xor16, xor42, xor64};
	if (argc != 2)
		return 1;

	printf("Arr size: %ld\n", sizeof(fn_arr) / sizeof(*fn_arr));
	fd = fopen(argv[1], "r");

	while (fgets(buf, 80, fd)) {
		encrypt_arr(buf, fn_arr, 3);
		printf("encrypted message: '%s'", buf);
	}

	printf("\n");

	printf("%c", (char)(f ^ 16 ^ 42 ^ 64));
	fclose(fd);
	return 0;
}