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67 lines
1.3 KiB
C
67 lines
1.3 KiB
C
/*
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* Copyright (C) 2013 Freie Universität Berlin
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* 2015 Kaspar Schleiser <kaspar@schleiser.de>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup sys_shell_commands
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* @{
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*
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* @file
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* @brief Shell commands for random generators
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*
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* @author Christian Mehlis <mehlis@inf.fu-berlin.de>
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* @author Kaspar Schleiser <kaspar@schleiser.de>
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* @}
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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#ifdef MODULE_XTIMER
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#include "xtimer.h"
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#endif
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#include "random.h"
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int _random_init(int argc, char **argv)
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{
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int initval;
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if (argc == 1) {
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#ifdef MODULE_XTIMER
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initval = _xtimer_now();
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printf("PRNG initialized to current time: %d\n", initval);
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#else
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(void)initval;
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puts("xtimer module not compiled in, can't initialize by time.\n"
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"Please provide a seed.\n");
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return 1;
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#endif
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}
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else {
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initval = atoi(argv[1]);
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printf("PRNG initialized given value: %d\n", initval);
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}
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random_init(initval);
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return 0;
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}
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int _random_get(int argc, char **argv)
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{
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(void) argc;
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(void) argv;
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printf("%" PRIu32 "\n", random_uint32());
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return 0;
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}
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