47 	struct crypt_op co1, co2;  in main()  local
59 	memset(&co1, 0, sizeof(co1));  in main()
60 	co1.ses = cs.ses;  in main()
61 	co1.op = COP_COMP;  in main()
62 	co1.len = sizeof(text);  in main()
63 	co1.src = text;  in main()
64 	co1.dst = buf1;  in main()
65 	co1.dst_len = sizeof(buf1);  in main()
66 	res = ioctl(fd, CIOCCRYPT, &co1);  in main()
69 	fprintf(stderr, "len %d/%d\n", co1.len, co1.dst_len);  in main()
71 	buf1[co1.dst_len - 8]++; /* modify CRC */  in main()
73 	write(1, buf1, co1.dst_len);  in main()
77 	co2.len = co1.dst_len;  in main()