| #include <per_support.c> |
| #include <assert.h> |
| |
| static void |
| check_per_decoding() { |
| uint8_t buf[] = { 0xB7, 0x19, 0x2F, 0xEE, 0xAD }; |
| uint8_t tmpbuf[10]; |
| int32_t z; |
| asn_per_data_t pos; |
| |
| pos.buffer = buf; |
| pos.nboff = 0; |
| pos.nbits = sizeof(buf) * 8; |
| |
| z = per_get_few_bits(&pos, 32); |
| assert(z == -1); |
| assert(pos.nbits == sizeof(buf) * 8); |
| |
| z = per_get_few_bits(&pos, 0); |
| assert(z == 0); |
| assert(pos.nboff == 0); |
| assert(pos.nbits == sizeof(buf) * 8); |
| |
| z = per_get_few_bits(&pos, 1); |
| assert(z == 1); |
| assert(pos.nboff == 1); |
| assert(pos.nbits == sizeof(buf) * 8); |
| |
| z = per_get_few_bits(&pos, 2); |
| assert(z == 1); |
| assert(pos.nboff == 3); |
| assert(pos.nbits == sizeof(buf) * 8); |
| |
| z = per_get_few_bits(&pos, 2); |
| assert(z == 2); |
| assert(pos.nboff == 5); |
| assert(pos.nbits == sizeof(buf) * 8); |
| |
| z = per_get_few_bits(&pos, 3); |
| assert(z == 7); |
| assert(pos.nboff == 8); |
| assert(pos.nbits == sizeof(buf) * 8); |
| |
| z = per_get_few_bits(&pos, 8); |
| assert(z == 0x19); |
| assert(pos.nboff == 8); |
| assert(pos.nbits == (sizeof(buf) - 1) * 8); |
| |
| z = per_get_few_bits(&pos, 1); |
| assert(z == 0); |
| assert(pos.nboff == 1); |
| assert(pos.nbits == (sizeof(buf) - 2) * 8); |
| |
| z = per_get_few_bits(&pos, 3); |
| assert(z == 2); |
| assert(pos.nboff == 4); |
| assert(pos.nbits == (sizeof(buf) - 2) * 8); |
| |
| z = per_get_few_bits(&pos, 8); |
| assert(z == 254); |
| assert(pos.nboff == 12); |
| |
| pos.buffer = buf; |
| pos.nboff = 2; |
| pos.nbits = sizeof(buf) * 8; |
| z = per_get_few_bits(&pos, 24); |
| assert(z == 14443711); |
| |
| /* Get full 31-bit range */ |
| pos.buffer = buf; |
| pos.nboff = 7; |
| pos.nbits = sizeof(buf) * 8; |
| z = per_get_few_bits(&pos, 31); |
| assert(z == 1179384747); |
| |
| /* Get a bit shifted range */ |
| pos.buffer = buf; |
| pos.nboff = 6; |
| pos.nbits = sizeof(buf) * 8; |
| z = per_get_few_bits(&pos, 31); |
| assert(z == 1663434197); |
| |
| pos.buffer = buf; |
| pos.nboff = 0; |
| pos.nbits = sizeof(buf) * 8; |
| z = per_get_many_bits(&pos, tmpbuf, 0, sizeof(buf) * 8); |
| assert(z == 0); |
| assert(buf[0] == tmpbuf[0]); |
| assert(buf[1] == tmpbuf[1]); |
| assert(buf[2] == tmpbuf[2]); |
| assert(buf[3] == tmpbuf[3]); |
| assert(buf[4] == tmpbuf[4]); |
| |
| pos.buffer = buf; |
| pos.nboff = 1; |
| pos.nbits = sizeof(buf) * 8; |
| z = per_get_many_bits(&pos, tmpbuf, 0, sizeof(buf) * 8); |
| assert(z == -1); |
| |
| pos.buffer = buf; |
| pos.nboff = 1; |
| pos.nbits = sizeof(buf) * 8; |
| z = per_get_many_bits(&pos, tmpbuf, 0, sizeof(buf) * 8 - 1); |
| assert(z == 0); |
| assert(tmpbuf[0] == 110); |
| assert(tmpbuf[1] == 50); |
| assert(tmpbuf[2] == 95); |
| assert(tmpbuf[3] == 221); |
| assert(tmpbuf[4] == 90); |
| |
| pos.buffer = buf; |
| pos.nboff = 1; |
| pos.nbits = sizeof(buf) * 8; |
| z = per_get_many_bits(&pos, tmpbuf, 1, sizeof(buf) * 8 - 1); |
| assert(z == 0); |
| assert(tmpbuf[0] == 55); |
| assert(tmpbuf[0] != buf[0]); |
| assert(tmpbuf[1] == buf[1]); |
| assert(tmpbuf[2] == buf[2]); |
| assert(tmpbuf[3] == buf[3]); |
| assert(tmpbuf[4] == buf[4]); |
| } |
| |
| static int Ignore(const void *data, size_t size, void *op_key) { |
| return 0; |
| } |
| |
| static void |
| check_per_encoding() { |
| asn_per_outp_t po; |
| int ret; |
| |
| po.buffer = po.tmpspace; |
| po.nboff = 0; |
| po.nbits = 0; |
| po.outper = Ignore; |
| po.op_key = 0; |
| po.tmpspace[0] = 0xff; |
| |
| ret = per_put_few_bits(&po, 0, 0); |
| assert(ret == 0); |
| assert(po.nboff == 0); |
| assert(po.buffer == po.tmpspace); |
| assert(po.tmpspace[0] == 0xff); |
| |
| ret = per_put_few_bits(&po, 0, 1); |
| assert(ret == 0); |
| assert(po.nboff == 1); |
| assert(po.nbits == 8 * sizeof(po.tmpspace)); |
| assert(po.buffer == po.tmpspace); |
| assert(po.tmpspace[0] == 0x00); |
| |
| ret = per_put_few_bits(&po, 1, 1); |
| assert(ret == 0); |
| assert(po.nboff == 2); |
| assert(po.nbits == 8 * sizeof(po.tmpspace)); |
| assert(po.buffer == po.tmpspace); |
| assert(po.tmpspace[0] == 0x40); |
| |
| ret = per_put_few_bits(&po, 1, 1); |
| assert(ret == 0); |
| assert(po.nboff == 3); |
| assert(po.nbits == 8 * sizeof(po.tmpspace)); |
| assert(po.buffer == po.tmpspace); |
| assert(po.tmpspace[0] == 0x60); |
| |
| ret = per_put_few_bits(&po, 15, 5); |
| assert(ret == 0); |
| assert(po.nboff == 8); |
| assert(po.nbits == 8 * sizeof(po.tmpspace)); |
| assert(po.buffer == po.tmpspace); |
| assert(po.tmpspace[0] == 0x6F); |
| |
| ret = per_put_few_bits(&po, 0xf0ff, 16); |
| assert(ret == 0); |
| assert(po.nboff == 16); |
| assert(po.nbits == 8 * sizeof(po.tmpspace) - 8); |
| assert(po.buffer == po.tmpspace + 1); |
| assert(po.tmpspace[0] == 0x6F); |
| assert(po.tmpspace[1] == 0xf0); |
| assert(po.tmpspace[2] == 0xff); |
| |
| po.nboff--; |
| |
| ret = per_put_few_bits(&po, 2, 1); |
| assert(ret == 0); |
| assert(po.nboff == 8); |
| assert(po.nbits == 8 * sizeof(po.tmpspace) - 16); |
| assert(po.buffer == po.tmpspace + 2); |
| assert(po.tmpspace[0] == 0x6F); |
| assert(po.tmpspace[1] == 0xf0); |
| assert(po.tmpspace[2] == 0xfe); |
| |
| ret = per_put_few_bits(&po, 2, 32); |
| assert(ret == -1); |
| |
| ret = per_put_few_bits(&po, 2, -1); |
| assert(ret == -1); |
| |
| ret = per_put_few_bits(&po, -1, 31); |
| assert(ret == 0); |
| assert(po.nboff == 31); |
| assert(po.nbits == 8 * sizeof(po.tmpspace) - 24); |
| assert(po.buffer == po.tmpspace + 3); |
| assert(po.tmpspace[0] == 0x6F); |
| assert(po.tmpspace[1] == 0xf0); |
| assert(po.tmpspace[2] == 0xfe); |
| assert(po.tmpspace[3] == 0xff); |
| assert(po.tmpspace[4] == 0xff); |
| assert(po.tmpspace[5] == 0xff); |
| assert(po.tmpspace[6] == 0xfe); |
| |
| |
| } |
| |
| int |
| main() { |
| check_per_decoding(); |
| check_per_encoding(); |
| return 0; |
| } |