Create ecat based on a lib archive

Signed-off-by: Carlos Maiolino <[email protected]>

1 files changed, 29 insertions, 0 deletions

diff --git a/C/HF/chap8/src/ecat.c b/C/HF/chap8/src/ecat.c
new file mode 100644
index 0000000..9be8a47
--- /dev/null
+++ b/C/HF/chap8/src/ecat.c
@@ -0,0 +1,29 @@
+#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;
+}