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c06335b71b
Previously `shell_commands` was a "catch-all" module that included shell commands for each and every used module that has a shell companion. Instead, the new `shell_cmds` module is now used to provide shell commands as individually selectable submodules, e.g. `cmd_gnrc_icmpv6_echo` now provides the ICMPv6 echo command (a.k.a. ping). To still have a "catch all" module to pull in shell commands of modules already used, `shell_cmds_default` was introduced. `shell_commands` depends now on `shell_cmds_default` for backward compatibility, but has been deprecated. New apps should use `shell_cmds_default` instead. For a handful of shell commands individual selection was already possible. Those modules now depend on the corresponding `cmd_%` module and they have been deprecated.
70 lines
1.5 KiB
C
70 lines
1.5 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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#include "random.h"
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#include "shell.h"
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#include "ztimer.h"
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static 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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if (IS_USED(MODULE_ZTIMER_USEC)) {
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initval = ztimer_now(ZTIMER_USEC);
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printf("PRNG initialized to current time: %d\n", initval);
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}
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else {
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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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}
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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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SHELL_COMMAND(random_init, "initializes the PRNG", _random_init);
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static 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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SHELL_COMMAND(random_get, "returns 32 bit of pseudo randomness", _random_get);
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