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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifdef FREEBL_NO_DEPEND
#include "stubs.h"
#endif
#include "seccomon.h"
static size_t rng_systemFromNoise(unsigned char *dest, size_t maxLen);
#if defined(XP_UNIX) || defined(XP_BEOS)
#include "unix_rand.c"
#endif
#ifdef XP_WIN
#include "win_rand.c"
#endif
#ifdef XP_OS2
#include "os2_rand.c"
#endif
/*
* Normal RNG_SystemRNG() isn't available, use the system noise to collect
* the required amount of entropy.
*/
static size_t
rng_systemFromNoise(unsigned char *dest, size_t maxLen)
{
size_t retBytes = maxLen;
while (maxLen) {
size_t nbytes = RNG_GetNoise(dest, maxLen);
PORT_Assert(nbytes != 0);
dest += nbytes;
maxLen -= nbytes;
/* some hw op to try to introduce more entropy into the next
* RNG_GetNoise call */
rng_systemJitter();
}
return retBytes;
}
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