/*
* xxhsum - Command line interface for xxhash algorithms
* Copyright (C) 2013-2021 Yann Collet
*
* GPL v2 License
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* You can contact the author at:
* - xxHash homepage: https://www.xxhash.com
* - xxHash source repository: https://github.com/Cyan4973/xxHash
*/
#include "third_party/xxhash/cli/xsum_sanity_check.h"
#include "third_party/xxhash/cli/xsum_output.h" /* XSUM_log */
#ifndef XXH_STATIC_LINKING_ONLY
# define XXH_STATIC_LINKING_ONLY
#endif
#include "third_party/xxhash/xxhash.h"
#include "libc/calls/calls.h"
#include "libc/calls/termios.h"
#include "libc/fmt/conv.h"
#include "libc/limits.h"
#include "libc/mem/alg.h"
#include "libc/mem/alloca.h"
#include "libc/mem/mem.h"
#include "libc/runtime/runtime.h"
#include "libc/stdio/dprintf.h"
#include "libc/stdio/rand.h"
#include "libc/temp.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/exit.h"
#include "third_party/musl/crypt.h"
#include "third_party/musl/rand48.h" /* exit */
#include "libc/assert.h"
#include "libc/mem/alg.h"
#include "libc/mem/mem.h"
#include "libc/str/str.h" /* memcmp */
/* use #define to make them constant, required for initialization */
#define PRIME32 2654435761U
#define PRIME64 11400714785074694797ULL
/*
* Fills a test buffer with pseudorandom data.
*
* This is used in the sanity check - its values must not be changed.
*/
XSUM_API void XSUM_fillTestBuffer(XSUM_U8* buffer, size_t len)
{
XSUM_U64 byteGen = PRIME32;
size_t i;
assert(buffer != NULL);
for (i=0; i<len; i++) {
buffer[i] = (XSUM_U8)(byteGen>>56);
byteGen *= PRIME64;
}
}
/* ************************************************
* Self-test:
* ensure results consistency across platforms
*********************************************** */
#if XSUM_NO_TESTS
XSUM_API void XSUM_sanityCheck(void)
{
XSUM_log("This version of xxhsum is not verified.\n");
}
#else
/*
* Test data vectors
*/
typedef struct {
XSUM_U32 len;
XSUM_U32 seed;
XSUM_U32 Nresult;
} XSUM_testdata32_t;
typedef struct {
XSUM_U32 len;
XSUM_U64 seed;
XSUM_U64 Nresult;
} XSUM_testdata64_t;
typedef struct {
XSUM_U32 len;
XSUM_U64 seed;
XXH128_hash_t Nresult;
} XSUM_testdata128_t;
#define SECRET_SAMPLE_NBBYTES 5
typedef struct {
XSUM_U32 seedLen;
XSUM_U32 secretLen;
XSUM_U8 byte[SECRET_SAMPLE_NBBYTES];
} XSUM_testdata_sample_t;
/* XXH32 */
static const XSUM_testdata32_t XSUM_XXH32_testdata[] = {
{ 0, 0, 0x02CC5D05U },
{ 0, PRIME32, 0x36B78AE7U },
{ 1, 0, 0xCF65B03EU },
{ 1, PRIME32, 0xB4545AA4U },
{ 14, 0, 0x1208E7E2U },
{ 14, PRIME32, 0x6AF1D1FEU },
{ 222, 0, 0x5BD11DBDU },
{ 222, PRIME32, 0x58803C5FU }
};
/* XXH64 */
static const XSUM_testdata64_t XSUM_XXH64_testdata[] = {
{ 0, 0, 0xEF46DB3751D8E999ULL },
{ 0, PRIME32, 0xAC75FDA2929B17EFULL },
{ 1, 0, 0xE934A84ADB052768ULL },
{ 1, PRIME32, 0x5014607643A9B4C3ULL },
{ 4, 0, 0x9136A0DCA57457EEULL },
{ 14, 0, 0x8282DCC4994E35C8ULL },
{ 14, PRIME32, 0xC3BD6BF63DEB6DF0ULL },
{ 222, 0, 0xB641AE8CB691C174ULL },
{ 222, PRIME32, 0x20CB8AB7AE10C14AULL }
};
/*
* XXH3:
* Due to being a more complex hash function with specializations for certain
* lengths, a more extensive test is used for XXH3.
*/
/* XXH3_64bits, seeded */
static const XSUM_testdata64_t XSUM_XXH3_testdata[] = {
{ 0, 0, 0x2D06800538D394C2ULL }, /* empty string */
{ 0, PRIME64, 0xA8A6B918B2F0364AULL },
{ 1, 0, 0xC44BDFF4074EECDBULL }, /* 1 - 3 */
{ 1, PRIME64, 0x032BE332DD766EF8ULL },
{ 6, 0, 0x27B56A84CD2D7325ULL }, /* 4 - 8 */
{ 6, PRIME64, 0x84589C116AB59AB9ULL },
{ 12, 0, 0xA713DAF0DFBB77E7ULL }, /* 9 - 16 */
{ 12, PRIME64, 0xE7303E1B2336DE0EULL },
{ 24, 0, 0xA3FE70BF9D3510EBULL }, /* 17 - 32 */
{ 24, PRIME64, 0x850E80FC35BDD690ULL },
{ 48, 0, 0x397DA259ECBA1F11ULL }, /* 33 - 64 */
{ 48, PRIME64, 0xADC2CBAA44ACC616ULL },
{ 80, 0, 0xBCDEFBBB2C47C90AULL }, /* 65 - 96 */
{ 80, PRIME64, 0xC6DD0CB699532E73ULL },
{ 195, 0, 0xCD94217EE362EC3AULL }, /* 129-240 */
{ 195, PRIME64, 0xBA68003D370CB3D9ULL },
{ 403, 0, 0xCDEB804D65C6DEA4ULL }, /* one block, last stripe is overlapping */
{ 403, PRIME64, 0x6259F6ECFD6443FDULL },
{ 512, 0, 0x617E49599013CB6BULL }, /* one block, finishing at stripe boundary */
{ 512, PRIME64, 0x3CE457DE14C27708ULL },
{ 2048, 0, 0xDD59E2C3A5F038E0ULL }, /* 2 blocks, finishing at block boundary */
{ 2048, PRIME64, 0x66F81670669ABABCULL },
{ 2099, 0, 0xC6B9D9B3FC9AC765ULL }, /* 2 blocks + 1 partial block, to detect off-by-one scrambling issues, like #816 */
{ 2099, PRIME64, 0x184F316843663974ULL },
{ 2240, 0, 0x6E73A90539CF2948ULL }, /* 3 blocks, finishing at stripe boundary */
{ 2240, PRIME64, 0x757BA8487D1B5247ULL },
{ 2367, 0, 0xCB37AEB9E5D361EDULL }, /* 3 blocks, last stripe is overlapping */
{ 2367, PRIME64, 0xD2DB3415B942B42AULL }
};
/* XXH3_64bits, custom secret */
static const XSUM_testdata64_t XSUM_XXH3_withSecret_testdata[] = {
{ 0, 0, 0x3559D64878C5C66CULL }, /* empty string */
{ 1, 0, 0x8A52451418B2DA4DULL }, /* 1 - 3 */
{ 6, 0, 0x82C90AB0519369ADULL }, /* 4 - 8 */
{ 12, 0, 0x14631E773B78EC57ULL }, /* 9 - 16 */
{ 24, 0, 0xCDD5542E4A9D9FE8ULL }, /* 17 - 32 */
{ 48, 0, 0x33ABD54D094B2534ULL }, /* 33 - 64 */
{ 80, 0, 0xE687BA1684965297ULL }, /* 65 - 96 */
{ 195, 0, 0xA057273F5EECFB20ULL }, /* 129-240 */
{ 403, 0, 0x14546019124D43B8ULL }, /* one block, last stripe is overlapping */
{ 512, 0, 0x7564693DD526E28DULL }, /* one block, finishing at stripe boundary */
{ 2048, 0, 0xD32E975821D6519FULL }, /* >= 2 blodcks, at least one scrambling */
{ 2367, 0, 0x293FA8E5173BB5E7ULL }, /* >= 2 blocks, at least one scrambling, last stripe unaligned */
{ 64*10*3, 0, 0x751D2EC54BC6038BULL } /* exactly 3 full blocks, not a multiple of 256 */
};
/* XXH3_128bits, seeded */
static const XSUM_testdata128_t XSUM_XXH128_testdata[] = {
{ 0, 0, { 0x6001C324468D497FULL, 0x99AA06D3014798D8ULL } }, /* empty string */
{ 0, PRIME32, { 0x5444F7869C671AB0ULL, 0x92220AE55E14AB50ULL } },
{ 1, 0, { 0xC44BDFF4074EECDBULL, 0xA6CD5E9392000F6AULL } }, /* 1 - 3 */
{ 1, PRIME32, { 0xB53D5557E7F76F8DULL, 0x89B99554BA22467CULL } },
{ 6, 0, { 0x3E7039BDDA43CFC6ULL, 0x082AFE0B8162D12AULL } }, /* 4 - 8 */
{ 6, PRIME32, { 0x269D8F70BE98856EULL, 0x5A865B5389ABD2B1ULL } },
{ 12, 0, { 0x061A192713F69AD9ULL, 0x6E3EFD8FC7802B18ULL } }, /* 9 - 16 */
{ 12, PRIME32, { 0x9BE9F9A67F3C7DFBULL, 0xD7E09D518A3405D3ULL } },
{ 24, 0, { 0x1E7044D28B1B901DULL, 0x0CE966E4678D3761ULL } }, /* 17 - 32 */
{ 24, PRIME32, { 0xD7304C54EBAD40A9ULL, 0x3162026714A6A243ULL } },
{ 48, 0, { 0xF942219AED80F67BULL, 0xA002AC4E5478227EULL } }, /* 33 - 64 */
{ 48, PRIME32, { 0x7BA3C3E453A1934EULL, 0x163ADDE36C072295ULL } },
{ 81, 0, { 0x5E8BAFB9F95FB803ULL, 0x4952F58181AB0042ULL } }, /* 65 - 96 */
{ 81, PRIME32, { 0x703FBB3D7A5F755CULL, 0x2724EC7ADC750FB6ULL } },
{ 222, 0, { 0xF1AEBD597CEC6B3AULL, 0x337E09641B948717ULL } }, /* 129-240 */
{ 222, PRIME32, { 0xAE995BB8AF917A8DULL, 0x91820016621E97F1ULL } },
{ 403, 0, { 0xCDEB804D65C6DEA4ULL, 0x1B6DE21E332DD73DULL } }, /* one block, last stripe is overlapping */
{ 403, PRIME64, { 0x6259F6ECFD6443FDULL, 0xBED311971E0BE8F2ULL } },
{ 512, 0, { 0x617E49599013CB6BULL, 0x18D2D110DCC9BCA1ULL } }, /* one block, finishing at stripe boundary */
{ 512, PRIME64, { 0x3CE457DE14C27708ULL, 0x925D06B8EC5B8040ULL } },
{ 2048, 0, { 0xDD59E2C3A5F038E0ULL, 0xF736557FD47073A5ULL } }, /* 2 blocks, finishing at block boundary */
{ 2048, PRIME32, { 0x230D43F30206260BULL, 0x7FB03F7E7186C3EAULL } },
{ 2240, 0, { 0x6E73A90539CF2948ULL, 0xCCB134FBFA7CE49DULL } }, /* 3 blocks, finishing at stripe boundary */
{ 2240, PRIME32, { 0xED385111126FBA6FULL, 0x50A1FE17B338995FULL } },
{ 2367, 0, { 0xCB37AEB9E5D361EDULL, 0xE89C0F6FF369B427ULL } }, /* 3 blocks, last stripe is overlapping */
{ 2367, PRIME32, { 0x6F5360AE69C2F406ULL, 0xD23AAE4B76C31ECBULL } }
};
/* XXH128, custom secret */
static const XSUM_testdata128_t XSUM_XXH128_withSecret_testdata[] = {
{ 0, 0, { 0x005923CCEECBE8AEULL, 0x5F70F4EA232F1D38ULL } }, /* empty string */
{ 1, 0, { 0x8A52451418B2DA4DULL, 0x3A66AF5A9819198EULL } }, /* 1 - 3 */
{ 6, 0, { 0x0B61C8ACA7D4778FULL, 0x376BD91B6432F36DULL } }, /* 4 - 8 */
{ 12, 0, { 0xAF82F6EBA263D7D8ULL, 0x90A3C2D839F57D0FULL } } /* 9 - 16 */
};
#define SECRET_SIZE_MAX 9867
static const XSUM_testdata_sample_t XSUM_XXH3_generateSecret_testdata[] = {
{ 0, 192, { 0xE7, 0x8C, 0x77, 0x77, 0x00 } },
{ 1, 240, { 0x2B, 0x3E, 0xDE, 0xC1, 0x00 } },
{ XXH3_SECRET_SIZE_MIN - 1, 277, { 0xE8, 0x39, 0x6C, 0xCC, 0x7B } },
{ XXH3_SECRET_DEFAULT_SIZE + 500, SECRET_SIZE_MAX, { 0xD6, 0x1C, 0x41, 0x17, 0xB3 } }
};
static void XSUM_checkResult32(XXH32_hash_t r1, XXH32_hash_t r2)
{
static int nbTests = 1;
if (r1!=r2) {
XSUM_log("\rError: 32-bit hash test %i: Internal sanity check failed!\n", nbTests);
XSUM_log("\rGot 0x%08X, expected 0x%08X.\n", (unsigned)r1, (unsigned)r2);
XSUM_log("\rNote: If you modified the hash functions, make sure to either update the values\n"
"or temporarily recompile with XSUM_NO_TESTS=1.\n");
exit(1);
}
nbTests++;
}
static void XSUM_checkResult64(XXH64_hash_t r1, XXH64_hash_t r2)
{
static int nbTests = 1;
if (r1!=r2) {
XSUM_log("\rError: 64-bit hash test %i: Internal sanity check failed!\n", nbTests);
XSUM_log("\rGot 0x%08X%08XULL, expected 0x%08X%08XULL.\n",
(unsigned)(r1>>32), (unsigned)r1, (unsigned)(r2>>32), (unsigned)r2);
XSUM_log("\rNote: If you modified the hash functions, make sure to either update the values\n"
"or temporarily recompile with XSUM_NO_TESTS=1.\n");
exit(1);
}
nbTests++;
}
static void XSUM_checkResult128(XXH128_hash_t r1, XXH128_hash_t r2)
{
static int nbTests = 1;
if ((r1.low64 != r2.low64) || (r1.high64 != r2.high64)) {
XSUM_log("\rError: 128-bit hash test %i: Internal sanity check failed.\n", nbTests);
XSUM_log("\rGot { 0x%08X%08XULL, 0x%08X%08XULL }, expected { 0x%08X%08XULL, 0x%08X%08XULL } \n",
(unsigned)(r1.low64>>32), (unsigned)r1.low64, (unsigned)(r1.high64>>32), (unsigned)r1.high64,
(unsigned)(r2.low64>>32), (unsigned)r2.low64, (unsigned)(r2.high64>>32), (unsigned)r2.high64 );
XSUM_log("\rNote: If you modified the hash functions, make sure to either update the values\n"
"or temporarily recompile with XSUM_NO_TESTS=1.\n");
exit(1);
}
nbTests++;
}
static void XSUM_testXXH32(const void* data, const XSUM_testdata32_t* testData)
{
XXH32_state_t *state = XXH32_createState();
size_t pos;
size_t len = testData->len;
XSUM_U32 seed = testData->seed;
XSUM_U32 Nresult = testData->Nresult;
if (len == 0) {
data = NULL;
} else {
assert(data != NULL);
}
assert(state != NULL);
XSUM_checkResult32(XXH32(data, len, seed), Nresult);
(void)XXH32_reset(state, seed);
(void)XXH32_update(state, data, len);
XSUM_checkResult32(XXH32_digest(state), Nresult);
(void)XXH32_reset(state, seed);
for (pos=0; pos<len; pos++)
(void)XXH32_update(state, ((const char*)data)+pos, 1);
XSUM_checkResult32(XXH32_digest(state), Nresult);
XXH32_freeState(state);
}
static void XSUM_testXXH64(const void* data, const XSUM_testdata64_t* testData)
{
XXH64_state_t *state = XXH64_createState();
size_t pos;
size_t len = (size_t)testData->len;
XSUM_U64 seed = testData->seed;
XSUM_U64 Nresult = testData->Nresult;
if (len == 0) {
data = NULL;
} else {
assert(data != NULL);
}
assert(state != NULL);
XSUM_checkResult64(XXH64(data, len, seed), Nresult);
(void)XXH64_reset(state, seed);
(void)XXH64_update(state, data, len);
XSUM_checkResult64(XXH64_digest(state), Nresult);
(void)XXH64_reset(state, seed);
for (pos=0; pos<len; pos++)
(void)XXH64_update(state, ((const char*)data)+pos, 1);
XSUM_checkResult64(XXH64_digest(state), Nresult);
XXH64_freeState(state);
}
/*
* Used to get "random" (but actually 100% reproducible) lengths for
* XSUM_XXH3_randomUpdate.
*/
static XSUM_U32 XSUM_rand(void)
{
static XSUM_U64 seed = PRIME32;
seed *= PRIME64;
return (XSUM_U32)(seed >> 40);
}
/*
* Technically, XXH3_64bits_update is identical to XXH3_128bits_update as of
* v0.8.0, but we treat them as separate.
*/
typedef XXH_errorcode (*XSUM_XXH3_update_t)(XXH3_state_t* state, const void* input, size_t length);
/*
* Runs the passed XXH3_update variant on random lengths. This is to test the
* more complex logic of the update function, catching bugs like this one:
* https://github.com/Cyan4973/xxHash/issues/378
*/
static void XSUM_XXH3_randomUpdate(XXH3_state_t* state, const void* data,
size_t len, XSUM_XXH3_update_t update_fn)
{
size_t p = 0;
while (p < len) {
size_t const modulo = len > 2 ? len : 2;
size_t l = (size_t)(XSUM_rand()) % modulo;
if (p + l > len) l = len - p;
(void)update_fn(state, (const char*)data+p, l);
p += l;
}
}
static void XSUM_testXXH3(const void* data, const XSUM_testdata64_t* testData)
{
size_t len = testData->len;
XSUM_U64 seed = testData->seed;
XSUM_U64 Nresult = testData->Nresult;
if (len == 0) {
data = NULL;
} else {
assert(data != NULL);
}
{ XSUM_U64 const Dresult = XXH3_64bits_withSeed(data, len, seed);
XSUM_checkResult64(Dresult, Nresult);
}
/* check that the no-seed variant produces same result as seed==0 */
if (seed == 0) {
XSUM_U64 const Dresult = XXH3_64bits(data, len);
XSUM_checkResult64(Dresult, Nresult);
}
/* check that the combination of
* XXH3_generateSecret_fromSeed() and XXH3_64bits_withSecretandSeed()
* results in exactly the same hash generation as XXH3_64bits_withSeed() */
{ char secretBuffer[XXH3_SECRET_DEFAULT_SIZE+1];
char* const secret = secretBuffer + 1; /* intentional unalignment */
XXH3_generateSecret_fromSeed(secret, seed);
{ XSUM_U64 const Dresult = XXH3_64bits_withSecretandSeed(data, len, secret, XXH3_SECRET_DEFAULT_SIZE, seed);
XSUM_checkResult64(Dresult, Nresult);
} }
/* streaming API test */
{ XXH3_state_t* const state = XXH3_createState();
assert(state != NULL);
/* single ingestion */
(void)XXH3_64bits_reset_withSeed(state, seed);
(void)XXH3_64bits_update(state, data, len);
XSUM_checkResult64(XXH3_64bits_digest(state), Nresult);
/* random ingestion */
(void)XXH3_64bits_reset_withSeed(state, seed);
XSUM_XXH3_randomUpdate(state, data, len, &XXH3_64bits_update);
XSUM_checkResult64(XXH3_64bits_digest(state), Nresult);
/* byte by byte ingestion */
{ size_t pos;
(void)XXH3_64bits_reset_withSeed(state, seed);
for (pos=0; pos<len; pos++)
(void)XXH3_64bits_update(state, ((const char*)data)+pos, 1);
XSUM_checkResult64(XXH3_64bits_digest(state), Nresult);
}
/* check that streaming with a combination of
* XXH3_generateSecret_fromSeed() and XXH3_64bits_reset_withSecretandSeed()
* results in exactly the same hash generation as XXH3_64bits_reset_withSeed() */
{ char secretBuffer[XXH3_SECRET_DEFAULT_SIZE+1];
char* const secret = secretBuffer + 1; /* intentional unalignment */
XXH3_generateSecret_fromSeed(secret, seed);
/* single ingestion */
(void)XXH3_64bits_reset_withSecretandSeed(state, secret, XXH3_SECRET_DEFAULT_SIZE, seed);
(void)XXH3_64bits_update(state, data, len);
XSUM_checkResult64(XXH3_64bits_digest(state), Nresult);
}
XXH3_freeState(state);
}
}
#ifndef XXH3_MIDSIZE_MAX
# define XXH3_MIDSIZE_MAX 240
#endif
static void XSUM_testXXH3_withSecret(const void* data, const void* secret,
size_t secretSize, const XSUM_testdata64_t* testData)
{
size_t len = (size_t)testData->len;
XSUM_U64 Nresult = testData->Nresult;
if (len == 0) {
data = NULL;
} else {
assert(data != NULL);
}
{ XSUM_U64 const Dresult = XXH3_64bits_withSecret(data, len, secret, secretSize);
XSUM_checkResult64(Dresult, Nresult);
}
/* check that XXH3_64bits_withSecretandSeed()
* results in exactly the same return value as XXH3_64bits_withSecret() */
if (len > XXH3_MIDSIZE_MAX)
{ XSUM_U64 const Dresult = XXH3_64bits_withSecretandSeed(data, len, secret, secretSize, 0);
XSUM_checkResult64(Dresult, Nresult);
}
/* streaming API test */
{ XXH3_state_t *state = XXH3_createState();
assert(state != NULL);
(void)XXH3_64bits_reset_withSecret(state, secret, secretSize);
(void)XXH3_64bits_update(state, data, len);
XSUM_checkResult64(XXH3_64bits_digest(state), Nresult);
/* random ingestion */
(void)XXH3_64bits_reset_withSecret(state, secret, secretSize);
XSUM_XXH3_randomUpdate(state, data, len, &XXH3_64bits_update);
XSUM_checkResult64(XXH3_64bits_digest(state), Nresult);
/* byte by byte ingestion */
{ size_t pos;
(void)XXH3_64bits_reset_withSecret(state, secret, secretSize);
for (pos=0; pos<len; pos++)
(void)XXH3_64bits_update(state, ((const char*)data)+pos, 1);
XSUM_checkResult64(XXH3_64bits_digest(state), Nresult);
}
/* check that XXH3_64bits_reset_withSecretandSeed()
* results in exactly the same return value as XXH3_64bits_reset_withSecret() */
if (len > XXH3_MIDSIZE_MAX) {
/* single ingestion */
(void)XXH3_64bits_reset_withSecretandSeed(state, secret, secretSize, 0);
(void)XXH3_64bits_update(state, data, len);
XSUM_checkResult64(XXH3_64bits_digest(state), Nresult);
}
XXH3_freeState(state);
}
}
static void XSUM_testXXH128(const void* data, const XSUM_testdata128_t* testData)
{
size_t len = (size_t)testData->len;
XSUM_U64 seed = testData->seed;
XXH128_hash_t const Nresult = testData->Nresult;
if (len == 0) {
data = NULL;
} else {
assert(data != NULL);
}
{ XXH128_hash_t const Dresult = XXH3_128bits_withSeed(data, len, seed);
XSUM_checkResult128(Dresult, Nresult);
}
/* check that XXH128() is identical to XXH3_128bits_withSeed() */
{ XXH128_hash_t const Dresult2 = XXH128(data, len, seed);
XSUM_checkResult128(Dresult2, Nresult);
}
/* check that the no-seed variant produces same result as seed==0 */
if (seed == 0) {
XXH128_hash_t const Dresult = XXH3_128bits(data, len);
XSUM_checkResult128(Dresult, Nresult);
}
/* check that the combination of
* XXH3_generateSecret_fromSeed() and XXH3_128bits_withSecretandSeed()
* results in exactly the same hash generation as XXH3_64bits_withSeed() */
{ char secretBuffer[XXH3_SECRET_DEFAULT_SIZE+1];
char* const secret = secretBuffer + 1; /* intentional unalignment */
XXH3_generateSecret_fromSeed(secret, seed);
{ XXH128_hash_t const Dresult = XXH3_128bits_withSecretandSeed(data, len, secret, XXH3_SECRET_DEFAULT_SIZE, seed);
XSUM_checkResult128(Dresult, Nresult);
} }
/* streaming API test */
{ XXH3_state_t *state = XXH3_createState();
assert(state != NULL);
/* single ingestion */
(void)XXH3_128bits_reset_withSeed(state, seed);
(void)XXH3_128bits_update(state, data, len);
XSUM_checkResult128(XXH3_128bits_digest(state), Nresult);
/* random ingestion */
(void)XXH3_128bits_reset_withSeed(state, seed);
XSUM_XXH3_randomUpdate(state, data, len, &XXH3_128bits_update);
XSUM_checkResult128(XXH3_128bits_digest(state), Nresult);
/* byte by byte ingestion */
{ size_t pos;
(void)XXH3_128bits_reset_withSeed(state, seed);
for (pos=0; pos<len; pos++)
(void)XXH3_128bits_update(state, ((const char*)data)+pos, 1);
XSUM_checkResult128(XXH3_128bits_digest(state), Nresult);
}
/* check that streaming with a combination of
* XXH3_generateSecret_fromSeed() and XXH3_128bits_reset_withSecretandSeed()
* results in exactly the same hash generation as XXH3_128bits_reset_withSeed() */
{ char secretBuffer[XXH3_SECRET_DEFAULT_SIZE+1];
char* const secret = secretBuffer + 1; /* intentional unalignment */
XXH3_generateSecret_fromSeed(secret, seed);
/* single ingestion */
(void)XXH3_128bits_reset_withSecretandSeed(state, secret, XXH3_SECRET_DEFAULT_SIZE, seed);
(void)XXH3_128bits_update(state, data, len);
XSUM_checkResult128(XXH3_128bits_digest(state), Nresult);
}
XXH3_freeState(state);
}
}
static void XSUM_testXXH128_withSecret(const void* data, const void* secret, size_t secretSize, const XSUM_testdata128_t* testData)
{
size_t len = testData->len;
XXH128_hash_t Nresult = testData->Nresult;
if (len == 0) {
data = NULL;
} else {
assert(data != NULL);
}
{ XXH128_hash_t const Dresult = XXH3_128bits_withSecret(data, len, secret, secretSize);
XSUM_checkResult128(Dresult, Nresult);
}
/* check that XXH3_128bits_withSecretandSeed()
* results in exactly the same return value as XXH3_128bits_withSecret() */
if (len > XXH3_MIDSIZE_MAX)
{ XXH128_hash_t const Dresult = XXH3_128bits_withSecretandSeed(data, len, secret, secretSize, 0);
XSUM_checkResult128(Dresult, Nresult);
}
/* streaming API test */
{ XXH3_state_t* const state = XXH3_createState();
assert(state != NULL);
(void)XXH3_128bits_reset_withSecret(state, secret, secretSize);
(void)XXH3_128bits_update(state, data, len);
XSUM_checkResult128(XXH3_128bits_digest(state), Nresult);
/* random ingestion */
(void)XXH3_128bits_reset_withSecret(state, secret, secretSize);
XSUM_XXH3_randomUpdate(state, data, len, &XXH3_128bits_update);
XSUM_checkResult128(XXH3_128bits_digest(state), Nresult);
/* byte by byte ingestion */
{ size_t pos;
(void)XXH3_128bits_reset_withSecret(state, secret, secretSize);
for (pos=0; pos<len; pos++)
(void)XXH3_128bits_update(state, ((const char*)data)+pos, 1);
XSUM_checkResult128(XXH3_128bits_digest(state), Nresult);
}
/* check that XXH3_128bits_reset_withSecretandSeed()
* results in exactly the same return value as XXH3_128bits_reset_withSecret() */
if (len > XXH3_MIDSIZE_MAX) {
/* single ingestion */
(void)XXH3_128bits_reset_withSecretandSeed(state, secret, secretSize, 0);
(void)XXH3_128bits_update(state, data, len);
XSUM_checkResult128(XXH3_128bits_digest(state), Nresult);
}
XXH3_freeState(state);
}
}
static void XSUM_testSecretGenerator(const void* customSeed, const XSUM_testdata_sample_t* testData)
{
static int nbTests = 1;
const int sampleIndex[SECRET_SAMPLE_NBBYTES] = { 0, 62, 131, 191, 241 }; /* position of sampled bytes */
XSUM_U8 secretBuffer[SECRET_SIZE_MAX] = {0};
XSUM_U8 samples[SECRET_SAMPLE_NBBYTES];
int i;
assert(testData->secretLen <= SECRET_SIZE_MAX);
XXH3_generateSecret(secretBuffer, testData->secretLen, customSeed, testData->seedLen);
for (i=0; i<SECRET_SAMPLE_NBBYTES; i++) {
samples[i] = secretBuffer[sampleIndex[i]];
}
if (memcmp(samples, testData->byte, sizeof(testData->byte))) {
XSUM_log("\rError: Secret generation test %i: Internal sanity check failed. \n", nbTests);
XSUM_log("\rGot { 0x%02X, 0x%02X, 0x%02X, 0x%02X, 0x%02X }, expected { 0x%02X, 0x%02X, 0x%02X, 0x%02X, 0x%02X } \n",
samples[0], samples[1], samples[2], samples[3], samples[4],
testData->byte[0], testData->byte[1], testData->byte[2], testData->byte[3], testData->byte[4] );
exit(1);
}
nbTests++;
}
/*!
* XSUM_sanityCheck():
* Runs a sanity check before the benchmark.
*
* Exits on an incorrect output.
*/
XSUM_API void XSUM_sanityCheck(void)
{
size_t i;
#define SANITY_BUFFER_SIZE 2367
XSUM_U8 sanityBuffer[SANITY_BUFFER_SIZE];
const void* const secret = sanityBuffer + 7;
const size_t secretSize = XXH3_SECRET_SIZE_MIN + 11;
assert(sizeof(sanityBuffer) >= 7 + secretSize);
XSUM_fillTestBuffer(sanityBuffer, sizeof(sanityBuffer));
/* XXH32 */
for (i = 0; i < (sizeof(XSUM_XXH32_testdata)/sizeof(XSUM_XXH32_testdata[0])); i++) {
XSUM_testXXH32(sanityBuffer, &XSUM_XXH32_testdata[i]);
}
/* XXH64 */
for (i = 0; i < (sizeof(XSUM_XXH64_testdata)/sizeof(XSUM_XXH64_testdata[0])); i++) {
XSUM_testXXH64(sanityBuffer, &XSUM_XXH64_testdata[i]);
}
/* XXH3_64bits, seeded */
for (i = 0; i < (sizeof(XSUM_XXH3_testdata)/sizeof(XSUM_XXH3_testdata[0])); i++) {
XSUM_testXXH3(sanityBuffer, &XSUM_XXH3_testdata[i]);
}
/* XXH3_64bits, custom secret */
for (i = 0; i < (sizeof(XSUM_XXH3_withSecret_testdata)/sizeof(XSUM_XXH3_withSecret_testdata[0])); i++) {
XSUM_testXXH3_withSecret(sanityBuffer, secret, secretSize, &XSUM_XXH3_withSecret_testdata[i]);
}
/* XXH128 */
for (i = 0; i < (sizeof(XSUM_XXH128_testdata)/sizeof(XSUM_XXH128_testdata[0])); i++) {
XSUM_testXXH128(sanityBuffer, &XSUM_XXH128_testdata[i]);
}
/* XXH128 with custom Secret */
for (i = 0; i < (sizeof(XSUM_XXH128_withSecret_testdata)/sizeof(XSUM_XXH128_withSecret_testdata[0])); i++) {
XSUM_testXXH128_withSecret(sanityBuffer, secret, secretSize, &XSUM_XXH128_withSecret_testdata[i]);
}
/* secret generator */
for (i = 0; i < (sizeof(XSUM_XXH3_generateSecret_testdata)/sizeof(XSUM_XXH3_generateSecret_testdata[0])); i++) {
assert(XSUM_XXH3_generateSecret_testdata[i].seedLen <= SANITY_BUFFER_SIZE);
XSUM_testSecretGenerator(sanityBuffer, &XSUM_XXH3_generateSecret_testdata[i]);
}
XSUM_logVerbose(3, "\r%70s\r", ""); /* Clean display line */
XSUM_logVerbose(3, "Sanity check -- all tests ok\n");
}
#endif /* !XSUM_NO_TESTS */