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/* Copyright (C) CZ.NIC, z.s.p.o. and contributors
* SPDX-License-Identifier: GPL-2.0-or-later
* For more information, see <https://www.knot-dns.cz/>
*/
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <tap/basic.h>
#include "libknot/libknot.h"
#include "contrib/base64.h"
#include "contrib/openbsd/strlcpy.h"
#define BUF_LEN 256
#define MAX_BIN_DATA_LEN ((INT32_MAX / 4) * 3)
int main(int argc, char *argv[])
{
plan(52);
int32_t ret;
uint8_t in[BUF_LEN], ref[BUF_LEN], out[BUF_LEN], out2[BUF_LEN], *out3;
uint32_t in_len, ref_len;
// 0. test invalid input
ret = knot_base64_encode(NULL, 0, out, BUF_LEN);
is_int(KNOT_EINVAL, ret, "knot_base64_encode: NULL input buffer");
ret = knot_base64_encode(in, BUF_LEN, NULL, 0);
is_int(KNOT_EINVAL, ret, "knot_base64_encode: NULL output buffer");
ret = knot_base64_encode(in, MAX_BIN_DATA_LEN + 1, out, BUF_LEN);
is_int(KNOT_ERANGE, ret, "knot_base64_encode: input buffer too large");
ret = knot_base64_encode(in, BUF_LEN, out, BUF_LEN);
is_int(KNOT_ESPACE, ret, "knot_base64_encode: output buffer too small");
ret = knot_base64_encode_alloc(NULL, 0, &out3);
is_int(KNOT_EINVAL, ret, "knot_base64_encode_alloc: NULL input buffer");
ret = knot_base64_encode_alloc(in, MAX_BIN_DATA_LEN + 1, &out3);
is_int(KNOT_ERANGE, ret, "knot_base64_encode_alloc: input buffer too large");
ret = knot_base64_encode_alloc(in, BUF_LEN, NULL);
is_int(KNOT_EINVAL, ret, "knot_base64_encode_alloc: NULL output buffer");
ret = knot_base64_decode(NULL, 0, out, BUF_LEN);
is_int(KNOT_EINVAL, ret, "knot_base64_decode: NULL input buffer");
ret = knot_base64_decode(in, BUF_LEN, NULL, 0);
is_int(KNOT_EINVAL, ret, "knot_base64_decode: NULL output buffer");
ret = knot_base64_decode(in, UINT32_MAX, out, BUF_LEN);
is_int(KNOT_ERANGE, ret, "knot_base64_decode: input buffer too large");
ret = knot_base64_decode(in, BUF_LEN, out, 0);
is_int(KNOT_ESPACE, ret, "knot_base64_decode: output buffer too small");
ret = knot_base64_decode_alloc(NULL, 0, &out3);
is_int(KNOT_EINVAL, ret, "knot_base64_decode_alloc: NULL input buffer");
ret = knot_base64_decode_alloc(in, UINT32_MAX, &out3);
is_int(KNOT_ERANGE, ret, "knot_base64_decode_aloc: input buffer too large");
ret = knot_base64_decode_alloc(in, BUF_LEN, NULL);
is_int(KNOT_EINVAL, ret, "knot_base64_decode_alloc: NULL output buffer");
// 1. test vector -> ENC -> DEC
strlcpy((char *)in, "", BUF_LEN);
in_len = strlen((char *)in);
strlcpy((char *)ref, "", BUF_LEN);
ref_len = strlen((char *)ref);
ret = knot_base64_encode(in, in_len, out, BUF_LEN);
ok(ret == ref_len, "1. test vector - ENC output length");
if (ret < 0) {
skip("Encode err");
} else {
ok(memcmp(out, ref, ret) == 0, "1. test vector - ENC output content");
}
ret = knot_base64_decode(out, ret, out2, BUF_LEN);
ok(ret == in_len, "1. test vector - DEC output length");
if (ret < 0) {
skip("Decode err");
} else {
ok(memcmp(out2, in, ret) == 0, "1. test vector - DEC output content");
}
// 2. test vector -> ENC -> DEC
strlcpy((char *)in, "f", BUF_LEN);
in_len = strlen((char *)in);
strlcpy((char *)ref, "Zg==", BUF_LEN);
ref_len = strlen((char *)ref);
ret = knot_base64_encode(in, in_len, out, BUF_LEN);
ok(ret == ref_len, "2. test vector - ENC output length");
if (ret < 0) {
skip("Encode err");
} else {
ok(memcmp(out, ref, ret) == 0, "2. test vector - ENC output content");
}
ret = knot_base64_decode(out, ret, out2, BUF_LEN);
ok(ret == in_len, "2. test vector - DEC output length");
if (ret < 0) {
skip("Decode err");
} else {
ok(memcmp(out2, in, ret) == 0, "2. test vector - DEC output content");
}
// 3. test vector -> ENC -> DEC
strlcpy((char *)in, "fo", BUF_LEN);
in_len = strlen((char *)in);
strlcpy((char *)ref, "Zm8=", BUF_LEN);
ref_len = strlen((char *)ref);
ret = knot_base64_encode(in, in_len, out, BUF_LEN);
ok(ret == ref_len, "3. test vector - ENC output length");
if (ret < 0) {
skip("Encode err");
} else {
ok(memcmp(out, ref, ret) == 0, "3. test vector - ENC output content");
}
ret = knot_base64_decode(out, ret, out2, BUF_LEN);
ok(ret == in_len, "3. test vector - DEC output length");
if (ret < 0) {
skip("Decode err");
} else {
ok(memcmp(out2, in, ret) == 0, "3. test vector - DEC output content");
}
// 4. test vector -> ENC -> DEC
strlcpy((char *)in, "foo", BUF_LEN);
in_len = strlen((char *)in);
strlcpy((char *)ref, "Zm9v", BUF_LEN);
ref_len = strlen((char *)ref);
ret = knot_base64_encode(in, in_len, out, BUF_LEN);
ok(ret == ref_len, "4. test vector - ENC output length");
if (ret < 0) {
skip("Encode err");
} else {
ok(memcmp(out, ref, ret) == 0, "4. test vector - ENC output content");
}
ret = knot_base64_decode(out, ret, out2, BUF_LEN);
ok(ret == in_len, "4. test vector - DEC output length");
if (ret < 0) {
skip("Decode err");
} else {
ok(memcmp(out2, in, ret) == 0, "4. test vector - DEC output content");
}
// 5. test vector -> ENC -> DEC
strlcpy((char *)in, "foob", BUF_LEN);
in_len = strlen((char *)in);
strlcpy((char *)ref, "Zm9vYg==", BUF_LEN);
ref_len = strlen((char *)ref);
ret = knot_base64_encode(in, in_len, out, BUF_LEN);
ok(ret == ref_len, "5. test vector - ENC output length");
if (ret < 0) {
skip("Encode err");
} else {
ok(memcmp(out, ref, ret) == 0, "5. test vector - ENC output content");
}
ret = knot_base64_decode(out, ret, out2, BUF_LEN);
ok(ret == in_len, "5. test vector - DEC output length");
if (ret < 0) {
skip("Decode err");
} else {
ok(memcmp(out2, in, ret) == 0, "5. test vector - DEC output content");
}
// 6. test vector -> ENC -> DEC
strlcpy((char *)in, "fooba", BUF_LEN);
in_len = strlen((char *)in);
strlcpy((char *)ref, "Zm9vYmE=", BUF_LEN);
ref_len = strlen((char *)ref);
ret = knot_base64_encode(in, in_len, out, BUF_LEN);
ok(ret == ref_len, "6. test vector - ENC output length");
if (ret < 0) {
skip("Encode err");
} else {
ok(memcmp(out, ref, ret) == 0, "6. test vector - ENC output content");
}
ret = knot_base64_decode(out, ret, out2, BUF_LEN);
ok(ret == in_len, "6. test vector - DEC output length");
if (ret < 0) {
skip("Decode err");
} else {
ok(memcmp(out2, in, ret) == 0, "6. test vector - DEC output content");
}
// 7. test vector -> ENC -> DEC
strlcpy((char *)in, "foobar", BUF_LEN);
in_len = strlen((char *)in);
strlcpy((char *)ref, "Zm9vYmFy", BUF_LEN);
ref_len = strlen((char *)ref);
ret = knot_base64_encode(in, in_len, out, BUF_LEN);
ok(ret == ref_len, "7. test vector - ENC output length");
if (ret < 0) {
skip("Encode err");
} else {
ok(memcmp(out, ref, ret) == 0, "7. test vector - ENC output content");
}
ret = knot_base64_decode(out, ret, out2, BUF_LEN);
ok(ret == in_len, "7. test vector - DEC output length");
if (ret < 0) {
skip("Decode err");
} else {
ok(memcmp(out2, in, ret) == 0, "7. test vector - DEC output content");
}
// Bad paddings
ret = knot_base64_decode((uint8_t *)"A===", 4, out, BUF_LEN);
ok(ret == KNOT_BASE64_ECHAR, "Bad padding length 3");
ret = knot_base64_decode((uint8_t *)"====", 4, out, BUF_LEN);
ok(ret == KNOT_BASE64_ECHAR, "Bad padding length 4");
ret = knot_base64_decode((uint8_t *)"AA=A", 4, out, BUF_LEN);
ok(ret == KNOT_BASE64_ECHAR, "Bad padding character on position 2");
ret = knot_base64_decode((uint8_t *)"Zg==Zg==", 8, out, BUF_LEN);
ok(ret == KNOT_BASE64_ECHAR, "Two quartets with padding");
// Bad data length
ret = knot_base64_decode((uint8_t *)"A", 1, out, BUF_LEN);
ok(ret == KNOT_BASE64_ESIZE, "Bad data length 1");
ret = knot_base64_decode((uint8_t *)"AA", 2, out, BUF_LEN);
ok(ret == KNOT_BASE64_ESIZE, "Bad data length 2");
ret = knot_base64_decode((uint8_t *)"AAA", 3, out, BUF_LEN);
ok(ret == KNOT_BASE64_ESIZE, "Bad data length 3");
ret = knot_base64_decode((uint8_t *)"AAAAA", 5, out, BUF_LEN);
ok(ret == KNOT_BASE64_ESIZE, "Bad data length 5");
// Bad data character
ret = knot_base64_decode((uint8_t *)"AAA$", 4, out, BUF_LEN);
ok(ret == KNOT_BASE64_ECHAR, "Bad data character dollar");
ret = knot_base64_decode((uint8_t *)"AAA ", 4, out, BUF_LEN);
ok(ret == KNOT_BASE64_ECHAR, "Bad data character space");
return 0;
}
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