void HHVM_FUNCTION(srand, const Variant& seed /* = null_variant */) {
if (seed.isNull()) {
randinit(math_generate_seed());
return;
}
if (seed.isNumeric(true)) {
randinit(seed.toInt32());
} else {
raise_warning("srand() expects parameter 1 to be long");
}
}
int dwipe_isaac_init( DWIPE_PRNG_INIT_SIGNATURE )
{
int count;
randctx* isaac_state = *state;
if( *state == NULL )
{
/* This is the first time that we have been called. */
*state = malloc( sizeof( randctx ) );
isaac_state = *state;
/* Check the memory allocation. */
if( isaac_state == 0 )
{
dwipe_perror( errno, __FUNCTION__, "malloc" );
dwipe_log( DWIPE_LOG_FATAL, "Unable to allocate memory for the isaac state." );
return -1;
}
}
/* Take the minimum of the isaac seed size and available entropy. */
if( sizeof( isaac_state->randrsl ) < seed->length )
{
count = sizeof( isaac_state->randrsl );
}
else
{
memset( isaac_state->randrsl, 0, sizeof( isaac_state->randrsl ) );
count = seed->length;
}
if( count == 0 )
{
/* Start ISACC without a seed. */
randinit( isaac_state, 0 );
}
else
{
/* Seed the ISAAC state with entropy. */
memcpy( isaac_state->randrsl, seed->s, count );
/* The second parameter indicates that randrsl is non-empty. */
randinit( isaac_state, 1 );
}
return 0;
}
int main(int argc, char *argv[])
{
double x,y;
int i;
int xyz=0;
startgraphics();
randinit();
D2=4*R*R;
for (i=0; n<N; i++)
{
tryInsert();
perturb();
if (counter>5500)
{
drawObjects();
check4event();
counter=0;
printf(".");
}
}
while(1)
{
drawObjects();
check4event();
sleep(1);
}
}
static void
isaac_init(rust_kernel *kernel, randctx *rctx,
uint8_t* user_seed, size_t seed_len) {
memset(rctx, 0, sizeof(randctx));
char *env_seed = kernel->env->rust_seed;
if (user_seed != NULL) {
// ignore bytes after the required length
if (seed_len > sizeof(rctx->randrsl)) {
seed_len = sizeof(rctx->randrsl);
}
memcpy(&rctx->randrsl, user_seed, seed_len);
} else if (env_seed != NULL) {
ub4 seed = (ub4) atoi(env_seed);
for (size_t i = 0; i < RANDSIZ; i ++) {
memcpy(&rctx->randrsl[i], &seed, sizeof(ub4));
seed = (seed + 0x7ed55d16) + (seed << 12);
}
} else {
rng_gen_seed(kernel,
(uint8_t*)&rctx->randrsl,
sizeof(rctx->randrsl));
}
randinit(rctx, 1);
}
/* side effect: seeds also random w/ seed */
void fastrand_seed(unsigned int seed)
{
int i;
srandom(seed);
for (i=0; i<RANDSIZ; i++)
is_ctx.randrsl[i]=random();
randinit(&is_ctx, 1);
}
int main(void)
{
rand_t state;
randinit(state);
test_poly_addsub(state);
test_poly_mul(state);
return 0;
}
int main(void)
{
printf("\nTiming nn_div_divconquer vs nn_divrem_classical:\n");
randinit(&state);
time_div_divconquer();
randclear(state);
return 0;
}
int main(void)
{
printf("\nTiming nn_mulmid_kara vs nn_mulmid_classical:\n");
randinit(&state);
time_mulmid_kara();
randclear(state);
return 0;
}
void QTIsaac<ALPHA,T>::srand(T a, T b, T c, T* s)
{
for(int i = 0; i < N; i++)
{
m_rc.randrsl[i] = s != NULL ? s[i] : 0;
}
m_rc.randa = a;
m_rc.randb = b;
m_rc.randc = c;
randinit(&m_rc, true);
}
static void
rng_maybe_reseed(rust_rng* rng) {
// If this RNG has generated more than 32KB of random data and was not
// seeded by the user or RUST_SEED, then we should reseed now.
const size_t RESEED_THRESHOLD = 32 * 1024;
size_t bytes_generated = rng->rctx.randc * sizeof(ub4);
if (bytes_generated < RESEED_THRESHOLD || !rng->reseedable) {
return;
}
rng_gen_seed((uint8_t*)rng->rctx.randrsl,
sizeof(rng->rctx.randrsl));
randinit(&rng->rctx, 1);
}
/*
* Initialize the isaac CSPRNG with a seed
*/
void isaac_init(void)
{
srand ( time(NULL) );
randrsl[0] = rand(); //not secure, but good for now
randrsl[1] = rand();
randrsl[2] = rand();
randrsl[3] = rand();
randrsl[4] = rand();
randrsl[5] = rand();
randinit(1);
isaac();
count = 256;
}
int main(void)
{
rand_t state;
randinit(state);
test_addsub(state);
test_muldiv(state);
test_divdivrem(state);
test_gcd(state);
test_jacobi(state);
test_fib(state);
test_is_prime(state);
return 0;
}
int
datalink_SetReconnect(struct cmdargs const *arg)
{
if (arg->argc == arg->argn+2) {
if (strncasecmp(arg->argv[arg->argn], "random", 6) == 0 &&
(arg->argv[arg->argn][6] == '\0')) {
arg->cx->cfg.reconnect.timeout = -1;
randinit();
} else {
arg->cx->cfg.reconnect.timeout = atoi(arg->argv[arg->argn]);
}
arg->cx->cfg.reconnect.max = atoi(arg->argv[arg->argn+1]);
return 0;
}
return -1;
}
int main(void)
{
int ret = 0;
randinit(&state);
checkpoint_rand("First Random Word: ");
ret |= test_rand();
ret |= test_linear();
ret |= test_quadratic();
checkpoint_rand("Last Random Word: ");
randclear(state);
return ret;
}
void qid_init_pool(void) {
int i;
/* FILE *f;
*/
struct timeval tv;
for (i=0; i<QID_POOL_SIZE; i++)
qid_pool[i] = i;
/* get random seed from time */
for (i=0; i<RANDSIZ; i++) {
gettimeofday(&tv,0);
isaac_ctx.randrsl[i] = tv.tv_sec + tv.tv_usec;
}
/* init prng */
randinit(&isaac_ctx, TRUE);
}
int main()
{
ub4 i,j;
randctx ctx;
ctx.randa=ctx.randb=ctx.randc=(ub4)0;
for (i=0; i<256; ++i) ctx.randrsl[i]=(ub4)0;
randinit(&ctx, TRUE);
for (i=0; i<2; ++i)
{
isaac(&ctx);
for (j=0; j<256; ++j)
{
printf("%.8lx",ctx.randrsl[j]);
if ((j&7)==7) printf("\n");
}
}
}
int main() {
char selected[4096];
char buffer[4096];
int lineno = 0;
int selsize = 0;
RandGen g = randinit();
for (;;) {
int len = readline(buffer, 4096);
if (len <= 0) break;
lineno++;
int64 rnd = randnext(&g);
if(rnd % lineno == 0) {
copybytes(selected, buffer, len);
selsize = len;
}
}
write(1, selected, selsize);
return 0;
}
void ATCLocker_impl::fillrand(char *buf, const int len)
{
unsigned long count = 4;
char r[4] = {0};
// ISAAC ( Cryptographic Random Number Generator )
randctx ctx;
// init
randinit(&ctx, 1);
for(int i = 0; i < len; ++i)
{
if(count == 4)
{
*(unsigned long*)r = rand(&ctx);
count = 0;
}
buf[i] = r[count++];
}
}
OAES_CTX * oaes_alloc(void)
{
oaes_ctx * _ctx = (oaes_ctx *) calloc( sizeof( oaes_ctx ), 1 );
if( NULL == _ctx )
return NULL;
#ifdef OAES_HAVE_ISAAC
{
ub4 _i = 0;
char _seed[RANDSIZ + 1];
_ctx->rctx = (randctx *) calloc( sizeof( randctx ), 1 );
if( NULL == _ctx->rctx )
{
free( _ctx );
return NULL;
}
oaes_get_seed( _seed );
memset( _ctx->rctx->randrsl, 0, RANDSIZ );
memcpy( _ctx->rctx->randrsl, _seed, RANDSIZ );
randinit( _ctx->rctx, TRUE);
}
#else
srand( oaes_get_seed() );
#endif // OAES_HAVE_ISAAC
_ctx->key = NULL;
oaes_set_option( _ctx, OAES_OPTION_CBC, NULL );
#ifdef OAES_DEBUG
_ctx->step_cb = NULL;
oaes_set_option( _ctx, OAES_OPTION_STEP_OFF, NULL );
#endif // OAES_DEBUG
return (OAES_CTX *) _ctx;
}
//---------------------------------------------------------------------------
// 初期化ベクトル（IV）の生成
//---------------------------------------------------------------------------
void TAttacheCaseFileEncrypt::fillrand(char *buf, const int len)
{
static unsigned long count = 4;
static char r[4];
int i;
// ISAAC ( Cryptographic Random Number Generator )
randctx ctx;
// init
randinit(&ctx, 1);
for(i = 0; i < len; ++i){
if(count == 4){
*(unsigned long*)r = rand(&ctx);
count = 0;
}
buf[i] = r[count++];
}
}
BOOL DH1080_Init()
{
unsigned char raw_buf[256], iniHash[33];
FILE *hRnd;
hRnd = fopen("/dev/urandom", "rb"); // don't use /dev/random, it's a blocking device
if(!hRnd) return FALSE;
// #*#*#*#*#* RNG START #*#*#*#*#*
if(fread(raw_buf, 1, sizeof(raw_buf), hRnd) < 128) /* At least 128 bytes of seeding */
{
ZeroMemory(raw_buf, sizeof(raw_buf));
fclose(hRnd);
return FALSE;
}
fclose(hRnd);
sha_file(iniPath, (char *)iniHash);
memXOR((char *)raw_buf+128, (char *)iniHash, 32);
sha_file((char *)get_irssi_config(), (char *)iniHash);
memXOR((char *)raw_buf+128, (char *)iniHash, 32);
ZeroMemory(iniHash, sizeof(iniHash));
// first 128 byte in raw_buf: output from /dev/urandom
// last 32 byte in raw_buf: SHA-256 digest from blow.ini and irssi.conf
/* Seed and initialize ISAAC */
memcpy(csprng.randrsl, raw_buf, sizeof(raw_buf));
randinit(&csprng, TRUE);
/* RNG END */
initb64();
mpz_init(b_prime1080);
mpz_import(b_prime1080, DH1080_PRIME_BYTES, 1, 1, 0, 0, prime1080);
return TRUE;
}
static void
chap_Challenge_old(struct authinfo *authp)
{
struct chap *chap = auth2chap(authp);
int len, i;
char *cp;
len = strlen(authp->physical->dl->bundle->cfg.auth.name);
if (!*chap->challenge.local) { /* as each time, local is NULL, here is always true */
randinit();
cp = chap->challenge.local;
#ifndef NORADIUS
if (*authp->physical->dl->bundle->radius.cfg.file) {
/* For radius, our challenge is 16 readable NUL terminated bytes :*/
*cp++ = 16;
for (i = 0; i < 16; i++)
*cp++ = (random() % 10) + '0';
} else
#endif
{
#ifdef HAVE_DES
if (authp->physical->link.lcp.want_authtype == 0x80)
*cp++ = 8; /* MS does 8 byte callenges :-/ */
else
#endif
*cp++ = random() % (CHAPCHALLENGELEN-16) + 16; /* 随机字串长度本身设为随机值, 放在local的第一个字节 */
for (i = 0; i < *chap->challenge.local; i++)
*cp++ = random() & 0xff; /* 随机字串 */
}
memcpy(cp, authp->physical->dl->bundle->cfg.auth.name, len);
}
ChapOutput(authp->physical, CHAP_CHALLENGE, authp->id, chap->challenge.local,
1 + *chap->challenge.local + len, NULL); /* 1: Value-Size, *local: 随机字串长度, len: Name length */
}
static void
chap_ChallengeInit(struct authinfo *authp)
{
struct chap *chap = auth2chap(authp);
int len, i;
char *cp;
len = strlen(authp->physical->dl->bundle->cfg.auth.name);
if (!*chap->challenge.local) {
randinit();
cp = chap->challenge.local;
#ifndef NORADIUS
if (*authp->physical->dl->bundle->radius.cfg.file) {
/* For radius, our challenge is 16 readable NUL terminated bytes :*/
*cp++ = 16;
for (i = 0; i < 16; i++)
*cp++ = (random() % 10) + '0';
} else
#endif
{
#ifndef NODES
if (authp->physical->link.lcp.want_authtype == 0x80)
*cp++ = 8; /* MS does 8 byte callenges :-/ */
else if (authp->physical->link.lcp.want_authtype == 0x81)
*cp++ = 16; /* MS-CHAP-V2 does 16 bytes challenges */
else
#endif
*cp++ = random() % (CHAPCHALLENGELEN-16) + 16;
for (i = 0; i < *chap->challenge.local; i++)
*cp++ = random() & 0xff;
}
memcpy(cp, authp->physical->dl->bundle->cfg.auth.name, len);
}
}
struct in_addr
iplist_setrandpos(struct iplist *list)
{
randinit();
return iplist_setcurpos(list, random() % list->nItems);
}
int main(int argc, char *argv[])
{
int i,j,k; /* loop indices */
Nc = floor(eta / (PI * R * R * DP));
if (Nc*DP>NMAX)
{
printf("too many chains: Nc=%d\n", Nc);
exit(0);
}
printf("using %d chains for actual eta = %lf\n", Nc, (double)(DP*Nc*PI*R*R));
if (graphics) startgraphics();
randinit();
/* insert Nc chains */
i = 0;
loop_insert: while(i<Nc) // for each chain
{
double end_x, end_y;
// first drop chain end
end_x=RND();
end_y=RND();
if (Pinsert(end_x, end_y))
{
X[Nm]=end_x;
Y[Nm]=end_y;
Nm++;
//printf("chain end at %lf, %lf\n", end_x, end_y);
//fflush(stdout);
//sleep(1);
}
else continue;
// then grow the chain....
loop_chain:for (j=1; j<DP;) // for each monomer in chain
{
double test_theta = RND()*PI*2;
double deltaX, deltaY;
double testx, testy;
deltaX = 2*R * cos(test_theta);
deltaY = 2*R * sin(test_theta);
testx = end_x + deltaX;
testy = end_y + deltaY;
if (Pinsert(testx, testy))
{
X[Nm] = testx;
Y[Nm] = testy;
end_x = testx;
end_y = testy;
Nm++;
j++;
//printf(" chain link at %lf, %lf\n", end_x, end_y);
//fflush(stdout);
}
else
{
/* rollback */
Nm-=j;
goto loop_insert; // insert failed, start over
}
} /* end loop_chain */
printf(" Nm = %d\n", Nm);
printf(" i = %d\n", i);
fflush(stdout);
drawObjects();
check4event();
i++;
} /* end loop_insert */
} /* end main */
static void
SetInterfaceID(u_char *ifid, int userandom)
{
struct ifaddrs *ifa, *ifap = NULL;
struct sockaddr_dl *sdl;
const u_long i32_max = 0xffffffff;
u_long r1, r2;
/* configure an interface ID based on Section 4.1 of RFC 2472 */
memset(ifid, 0, IPV6CP_IFIDLEN);
/*
* 1) If an IEEE global identifier (EUI-48 or EUI-64) is
* available anywhere on the node, it should be used to construct
* the tentative Interface-Identifier due to its uniqueness
* properties.
*/
if (userandom)
goto randomid;
if (getifaddrs(&ifap) < 0)
goto randomid;
for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
char *cp;
if (ifa->ifa_addr->sa_family != AF_LINK)
continue;
sdl = (struct sockaddr_dl *)ifa->ifa_addr;
if (sdl->sdl_alen < 6)
continue;
/* we're only interested in IEEE hardware addresses */
switch(sdl->sdl_type) {
case IFT_ETHER:
case IFT_FDDI:
case IFT_L2VLAN:
/* XXX need more cases? */
break;
default:
continue;
}
cp = (char *)(sdl->sdl_data + sdl->sdl_nlen);
ifid[0] = cp[0];
ifid[0] ^= 0x02; /* reverse the u/l bit*/
ifid[1] = cp[1];
ifid[2] = cp[2];
ifid[3] = 0xff;
ifid[4] = 0xfe;
ifid[5] = cp[3];
ifid[6] = cp[4];
ifid[7] = cp[5];
freeifaddrs(ifap);
return;
}
freeifaddrs(ifap);
/*
* 2) If an IEEE global identifier is not available a different source
* of uniqueness should be used.
* XXX: we skip this case.
*/
/*
* 3) If a good source of uniqueness cannot be found, it is
* recommended that a random number be generated. In this case the
* "u" bit of the interface identifier MUST be set to zero (0).
*/
randomid:
randinit();
r1 = (((u_long)random()) % i32_max) + 1;
r2 = (((u_long)random()) % i32_max) + 1;
memcpy(ifid, &r1, sizeof(r1));
memcpy(ifid + 4, &r2, sizeof(r2));
ifid[0] &= 0xfd;
return;
}
int
datalink_SetRedial(struct cmdargs const *arg)
{
const char *sep, *osep;
int timeout, inc, maxinc, tries;
if (arg->argc == arg->argn+1 || arg->argc == arg->argn+2) {
if (strncasecmp(arg->argv[arg->argn], "random", 6) == 0 &&
(arg->argv[arg->argn][6] == '\0' || arg->argv[arg->argn][6] == '.')) {
arg->cx->cfg.dial.timeout = -1;
randinit();
} else {
timeout = atoi(arg->argv[arg->argn]);
if (timeout >= 0)
arg->cx->cfg.dial.timeout = timeout;
else {
log_Printf(LogWARN, "Invalid redial timeout\n");
return -1;
}
}
sep = strchr(arg->argv[arg->argn], '+');
if (sep) {
inc = atoi(++sep);
osep = sep;
if (inc >= 0)
arg->cx->cfg.dial.inc = inc;
else {
log_Printf(LogWARN, "Invalid timeout increment\n");
return -1;
}
sep = strchr(sep, '-');
if (sep) {
maxinc = atoi(++sep);
if (maxinc >= 0)
arg->cx->cfg.dial.maxinc = maxinc;
else {
log_Printf(LogWARN, "Invalid maximum timeout increments\n");
return -1;
}
} else {
/* Default timeout increment */
arg->cx->cfg.dial.maxinc = 10;
sep = osep;
}
} else {
/* Default timeout increment & max increment */
arg->cx->cfg.dial.inc = 0;
arg->cx->cfg.dial.maxinc = 10;
sep = arg->argv[arg->argn];
}
sep = strchr(sep, '.');
if (sep) {
if (strcasecmp(++sep, "random") == 0) {
arg->cx->cfg.dial.next_timeout = -1;
randinit();
} else {
timeout = atoi(sep);
if (timeout >= 0)
arg->cx->cfg.dial.next_timeout = timeout;
else {
log_Printf(LogWARN, "Invalid next redial timeout\n");
return -1;
}
}
} else
/* Default next timeout */
arg->cx->cfg.dial.next_timeout = DIAL_NEXT_TIMEOUT;
if (arg->argc == arg->argn+2) {
tries = atoi(arg->argv[arg->argn+1]);
if (tries >= 0) {
arg->cx->cfg.dial.max = tries;
} else {
log_Printf(LogWARN, "Invalid retry value\n");
return 1;
}
}
return 0;
}
return -1;
}
int64_t HHVM_FUNCTION(rand,
int64_t min /* = 0 */,
const Variant& max /* = null_variant */) {
#if defined(__APPLE__) || defined(_MSC_VER)
if (!s_rand_is_seeded) {
#else
if (s_state.state != RandomBuf::RequestInit) {
#endif
randinit(math_generate_seed());
}
int64_t number;
#ifdef __APPLE__
number = random();
#elif defined(_MSC_VER)
number = rand();
#else
int32_t numberIn;
random_r(&s_state.data, &numberIn);
number = numberIn;
#endif
int64_t int_max = max.isNull() ? RAND_MAX : max.toInt64();
if (min != 0 || int_max != RAND_MAX) {
RAND_RANGE(number, min, int_max, RAND_MAX);
}
return number;
}
int64_t HHVM_FUNCTION(mt_getrandmax) { return MT_RAND_MAX;}
void HHVM_FUNCTION(mt_srand,
const Variant& seed /* = null_variant */) {
if (seed.isNull()) {
return math_mt_srand(math_generate_seed());
}
if (seed.isNumeric(true)) {
math_mt_srand(seed.toInt32());
} else {
raise_warning("mt_srand() expects parameter 1 to be long");
}
}
int64_t HHVM_FUNCTION(mt_rand,
int64_t min /* = 0 */,
const Variant& max /* = null_variant */) {
return math_mt_rand(min, max.isNull() ? RAND_MAX : max.toInt64());
}
double HHVM_FUNCTION(lcg_value) { return math_combined_lcg();}
Variant HHVM_FUNCTION(intdiv, int64_t numerator, int64_t divisor) {
if (divisor == 0) {
SystemLib::throwDivisionByZeroErrorObject(Strings::DIVISION_BY_ZERO);
} else if (divisor == -1 &&
numerator == std::numeric_limits<int64_t>::min()) {
SystemLib::throwArithmeticErrorObject(
"Division of PHP_INT_MIN by -1 is not an integer");
}
return numerator/divisor;
}
///////////////////////////////////////////////////////////////////////////////
const StaticString s_PHP_ROUND_HALF_UP("PHP_ROUND_HALF_UP");
const StaticString s_PHP_ROUND_HALF_DOWN("PHP_ROUND_HALF_DOWN");
const StaticString s_PHP_ROUND_HALF_EVEN("PHP_ROUND_HALF_EVEN");
const StaticString s_PHP_ROUND_HALF_ODD("PHP_ROUND_HALF_ODD");
#define ICONST(nm) \
Native::registerConstant<KindOfInt64>(makeStaticString(#nm), k_##nm) \
#define DCONST(nm) \
Native::registerConstant<KindOfDouble>(makeStaticString("M_"#nm), k_M_##nm) \
void StandardExtension::requestInitMath() {
#if !defined(__APPLE__) && !defined(_MSC_VER)
if (s_state.state == RandomBuf::RequestInit) {
s_state.state = RandomBuf::ThreadInit;
}
#endif
}
void StandardExtension::initMath() {
ICONST(PHP_ROUND_HALF_UP);
ICONST(PHP_ROUND_HALF_DOWN);
ICONST(PHP_ROUND_HALF_EVEN);
ICONST(PHP_ROUND_HALF_ODD);
DCONST(PI);
DCONST(1_PI);
DCONST(2_PI);
DCONST(2_SQRTPI);
DCONST(E);
DCONST(EULER);
DCONST(LN10);
DCONST(LN2);
DCONST(LNPI);
DCONST(LOG10E);
DCONST(LOG2E);
DCONST(PI_2);
DCONST(PI_4);
DCONST(SQRT1_2);
DCONST(SQRT2);
DCONST(SQRT3);
DCONST(SQRTPI);
HHVM_FE(min);
HHVM_FE(max);
HHVM_FE(abs);
HHVM_FE(is_finite);
HHVM_FE(is_infinite);
HHVM_FE(is_nan);
HHVM_FE(ceil);
HHVM_FE(floor);
HHVM_FE(round);
HHVM_FE(deg2rad);
HHVM_FE(rad2deg);
HHVM_FE(decbin);
HHVM_FE(dechex);
HHVM_FE(decoct);
HHVM_FE(bindec);
HHVM_FE(hexdec);
HHVM_FE(octdec);
HHVM_FE(base_convert);
HHVM_FE(pow);
HHVM_FE(exp);
HHVM_FE(expm1);
HHVM_FE(log10);
HHVM_FE(log1p);
HHVM_FE(log);
HHVM_FE(cos);
HHVM_FE(cosh);
HHVM_FE(sin);
HHVM_FE(sinh);
HHVM_FE(tan);
HHVM_FE(tanh);
HHVM_FE(acos);
HHVM_FE(acosh);
HHVM_FE(asin);
HHVM_FE(asinh);
HHVM_FE(atan);
HHVM_FE(atanh);
HHVM_FE(atan2);
HHVM_FE(hypot);
HHVM_FE(fmod);
HHVM_FE(sqrt);
HHVM_FE(getrandmax);
HHVM_FE(srand);
HHVM_FE(rand);
HHVM_FE(mt_getrandmax);
HHVM_FE(mt_srand);
HHVM_FE(mt_rand);
HHVM_FE(lcg_value);
HHVM_FE(intdiv);
loadSystemlib("std_math");
}