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Make windows respect RUST_SEED. Closes #627.

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This commit is contained in:
Michael Sullivan 2011-08-18 16:24:36 -07:00
parent 0a00fab249
commit ddc2076902
1 changed files with 10 additions and 11 deletions
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21
src/rt/rust_util.h
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@ -130,8 +130,15 @@ isaac_init(sched_or_kernel *sched, randctx *rctx)
{
memset(rctx, 0, sizeof(randctx));
char *rust_seed = sched->env->rust_seed;
if (rust_seed != NULL) {
ub4 seed = (ub4) atoi(rust_seed);
for (size_t i = 0; i < RANDSIZ; i ++) {
memcpy(&rctx->randrsl[i], &seed, sizeof(ub4));
seed = (seed + 0x7ed55d16) + (seed << 12);
}
} else {
#ifdef __WIN32__
{
HCRYPTPROV hProv;
sched->win32_require
(_T("CryptAcquireContext"),
@ -144,24 +151,16 @@ isaac_init(sched_or_kernel *sched, randctx *rctx)
sched->win32_require
(_T("CryptReleaseContext"),
CryptReleaseContext(hProv, 0));
}
#else
char *rust_seed = sched->env->rust_seed;
if (rust_seed != NULL) {
ub4 seed = (ub4) atoi(rust_seed);
for (size_t i = 0; i < RANDSIZ; i ++) {
memcpy(&rctx->randrsl[i], &seed, sizeof(ub4));
seed = (seed + 0x7ed55d16) + (seed << 12);
}
} else {
int fd = open("/dev/urandom", O_RDONLY);
I(sched, fd > 0);
I(sched,
read(fd, (void*) &rctx->randrsl, sizeof(rctx->randrsl))
== sizeof(rctx->randrsl));
I(sched, close(fd) == 0);
}
#endif
}
randinit(rctx, 1);
}