66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
/***
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This file is part of systemd.
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Copyright 2017 Zbigniew Jędrzejewski-Szmek
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "hexdecoct.h"
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#include "random-util.h"
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#include "log.h"
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static void test_acquire_random_bytes(bool high_quality_required) {
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uint8_t buf[16] = {};
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unsigned i;
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log_info("/* %s */", __func__);
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for (i = 1; i < sizeof buf; i++) {
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assert_se(acquire_random_bytes(buf, i, high_quality_required) == 0);
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if (i + 1 < sizeof buf)
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assert_se(buf[i] == 0);
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hexdump(stdout, buf, i);
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}
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}
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static void test_pseudorandom_bytes(void) {
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uint8_t buf[16] = {};
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unsigned i;
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log_info("/* %s */", __func__);
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for (i = 1; i < sizeof buf; i++) {
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pseudorandom_bytes(buf, i);
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if (i + 1 < sizeof buf)
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assert_se(buf[i] == 0);
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hexdump(stdout, buf, i);
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}
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}
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int main(int argc, char **argv) {
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log_set_max_level(LOG_DEBUG);
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log_parse_environment();
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log_open();
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test_acquire_random_bytes(false);
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test_acquire_random_bytes(true);
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test_pseudorandom_bytes();
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return 0;
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}
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