void
arc4random_stir(void)
{
_ARC4_LOCK();
arc4_stir();
_ARC4_UNLOCK();
}
void
arc4random_buf(void *buf, size_t n)
{
_ARC4_LOCK();
_rs_random_buf(buf, n);
_ARC4_UNLOCK();
}
void
arc4random_addrandom(unsigned char *dat, int datlen)
{
_ARC4_LOCK();
_rs_stir_if_needed(datlen);
_rs_rekey(dat, datlen);
_ARC4_UNLOCK();
}
void
arc4random_addrandom(u_char *dat, int datlen)
{
_ARC4_LOCK();
if (!rs_initialized)
arc4_stir();
arc4_addrandom(dat, datlen);
_ARC4_UNLOCK();
}
ARC4RANDOM_EXPORT int
arc4random_stir(void)
{
int val;
_ARC4_LOCK();
val = arc4_stir();
_ARC4_UNLOCK();
return val;
}
int
evutil_secure_rng_set_urandom_device_file(char *fname)
{
#ifdef TRY_SEED_URANDOM
_ARC4_LOCK();
arc4random_urandom_filename = fname;
_ARC4_UNLOCK();
#endif
return 0;
}
uint32_t
arc4random(void)
{
uint32_t val;
_ARC4_LOCK();
_rs_random_u32(&val);
_ARC4_UNLOCK();
return val;
}
u_int32_t
arc4random(void)
{
u_int32_t val;
_ARC4_LOCK();
arc4_count -= 4;
arc4_stir_if_needed();
val = arc4_getword();
_ARC4_UNLOCK();
return val;
}
ARC4RANDOM_EXPORT ARC4RANDOM_UINT32
arc4random(void)
{
ARC4RANDOM_UINT32 val;
_ARC4_LOCK();
arc4_count -= 4;
arc4_stir_if_needed();
val = arc4_getword();
_ARC4_UNLOCK();
return val;
}
int
evutil_secure_rng_init(void)
{
int val;
_ARC4_LOCK();
if (!arc4_seeded_ok)
arc4_stir();
val = arc4_seeded_ok ? 0 : -1;
_ARC4_UNLOCK();
return val;
}
u_int32_t
arc4random(void)
{
u_int32_t val;
_ARC4_LOCK();
arc4_count -= 4;
if (arc4_count <= 0 || !rs_initialized || arc4_stir_pid != getpid())
arc4_stir();
val = arc4_getword();
_ARC4_UNLOCK();
return val;
}
u_int8_t
__arc4_getbyte(void)
{
u_int8_t val;
_ARC4_LOCK();
if (--arc4_count == 0 || !rs_initialized)
arc4_stir();
val = arc4_getbyte();
_ARC4_UNLOCK();
return val;
}
ARC4RANDOM_EXPORT void
arc4random_buf(void *_buf, size_t n)
{
unsigned char *buf = _buf;
_ARC4_LOCK();
arc4_stir_if_needed();
while (n--) {
if (--arc4_count <= 0)
arc4_stir();
buf[n] = arc4_getbyte();
}
_ARC4_UNLOCK();
}
void
arc4random_buf(void *_buf, size_t n)
{
u_char *buf = (u_char *)_buf;
_ARC4_LOCK();
arc4_stir_if_needed();
while (n--) {
if (--arc4_count <= 0)
arc4_stir();
buf[n] = arc4_getbyte();
}
_ARC4_UNLOCK();
}
void
arc4random_buf(void *_buf, size_t n)
{
u_char *buf = (u_char *)_buf;
_ARC4_LOCK();
if (!rs_initialized || arc4_stir_pid != getpid())
arc4_stir();
while (n--) {
if (--arc4_count <= 0)
arc4_stir();
buf[n] = arc4_getbyte();
}
_ARC4_UNLOCK();
}
int
evutil_secure_rng_init(void)
{
int val;
if (!arc4rand_lock) {
EVTHREAD_ALLOC_LOCK(arc4rand_lock, 0);
}
_ARC4_LOCK();
if (!arc4_seeded_ok)
arc4_stir();
val = arc4_seeded_ok ? 0 : -1;
_ARC4_UNLOCK();
return val;
}
ARC4RANDOM_EXPORT void
arc4random_addrandom(const unsigned char *dat, int datlen)
{
int j;
_ARC4_LOCK();
if (!rs_initialized)
arc4_stir();
for (j = 0; j < datlen; j += 256) {
/* arc4_addrandom() ignores all but the first 256 bytes of
* its input. We want to make sure to look at ALL the
* data in 'dat', just in case the user is doing something
* crazy like passing us all the files in /var/log. */
arc4_addrandom(dat + j, datlen - j);
}
_ARC4_UNLOCK();
}
void
arc4random_addrandom(unsigned char *dat, int datlen)
{
int m;
_ARC4_LOCK();
if (!rs_initialized)
_rs_stir();
while (datlen > 0) {
m = MIN(datlen, KEYSZ + IVSZ);
_rs_rekey(dat, m);
dat += m;
datlen -= m;
}
_ARC4_UNLOCK();
}
