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[fuchsia] Update to zx_cprng_draw

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This change moves to the final version of zx_cprng_draw, which cannot
fail. If the syscall would fail, either the operating system terminates
or the kernel kills the userspace process (depending on where the error
comes from).

Change-Id: Iea9563c9f63ea5802e2cde741879fa58c19028f4
Reviewed-on: https://boringssl-review.googlesource.com/29424
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This commit is contained in:
Adam Barth 2018-06-27 09:30:46 -07:00 committed by CQ bot account: commit-bot@chromium.org
parent a0373182eb
commit 9c3b120b61
1 changed files with 1 additions and 12 deletions
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13
crypto/rand_extra/fuchsia.c
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@ -24,18 +24,7 @@
#include "../fipsmodule/rand/internal.h"
void CRYPTO_sysrand(uint8_t *out, size_t requested) {
while (requested > 0) {
size_t output_bytes_this_pass = ZX_CPRNG_DRAW_MAX_LEN;
if (requested < output_bytes_this_pass) {
output_bytes_this_pass = requested;
}
zx_status_t status = zx_cprng_draw_new(out, output_bytes_this_pass);
if (status != ZX_OK) {
abort();
}
requested -= output_bytes_this_pass;
out += output_bytes_this_pass;
}
zx_cprng_draw(out, requested);
}
#endif // OPENSSL_FUCHSIA && !BORINGSSL_UNSAFE_DETERMINISTIC_MODE