int main(void)
{
const unsigned int FrameLen = 36;
unsigned char *macframe = malloc(FrameLen); // alloc MAC header until frame body
// fill header with junk, to make this more interesting
for (unsigned int i = 0; i < FrameLen; i++) {
macframe[i] = 0xde;
}
set_proto_version(macframe, 0);
set_type(macframe, 1);
set_subtype(macframe, 1);
set_to_ds(macframe, 1);
set_from_ds(macframe, 0);
set_retry(macframe, 0);
set_more_data(macframe, 0);
print_header(macframe);
printf("Protocol version: %d\n", get_proto_version(macframe));
printf("Type: %d\n", get_type(macframe));
printf("Subtype: %d\n", get_subtype(macframe));
printf("Flags: To DS: %d From DS: %d Retry: %d More Data: %d\n",
get_to_ds(macframe) != 0, get_from_ds(macframe) != 0,
get_retry(macframe) != 0, get_more_data(macframe) != 0);
free(macframe);
}
END_TEST
START_TEST(test_set_header)
{
unsigned char buf[36] = { 0 };
set_proto_version(buf, 1);
if (buf[0] != 0x40) {
fail("[Task 6.3.b] After setting proto_version to 1, the first byte should be 0x%02x, you have: 0x%02x",
0x40, buf[0]);
}
buf[0] = 0;
set_type(buf, 2);
if (buf[0] != 0x20) {
fail("[Task 6.3.b] After setting type to 2, the first byte should be 0x%02x, you have: 0x%02x",
0x20, buf[0]);
}
buf[0] = 0;
set_subtype(buf, 6);
if (buf[0] != 0x6) {
fail("[Task 6.3.b] After setting subtype to 6, the first byte should be 0x%02x, you have: 0x%02x",
0x6, buf[0]);
}
buf[1] = 0;
set_to_ds(buf, 1);
if (buf[1] != 0x80) {
fail("[Task 6.3.b] After setting to_ds to 1, the second byte should be 0x%02x, you have: 0x%02x",
0x80, buf[1]);
}
}
