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