45b0241f94
Commands are part of a single array, which means that their definition is static. However, different apps in the same source tree may reasonably want to add to the command set (perhaps even shadow existing commands), which would make for awkward code. Instead, allow dynamic registration/deregistration of command sets at runtime. This keeps the data overhead low (two pointers per enabled command set).
126 lines
3.8 KiB
C
126 lines
3.8 KiB
C
/*
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* Copyright (c) 2018, Inria.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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*/
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/**
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* \file
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* The shell application
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* \author
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* Simon Duquennoy <simon.duquennoy@inria.fr>
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*/
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/**
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* \addtogroup shell Shell
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The shell enables to inspect and manage the network layer and provides
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other system functionalities
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* \ingroup lib
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* @{
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*/
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#include "contiki.h"
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#include "shell.h"
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#include "shell-commands.h"
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#include "net/ipv6/uip.h"
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#include "net/ipv6/ip64-addr.h"
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#include "net/ipv6/uiplib.h"
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/*---------------------------------------------------------------------------*/
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void
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shell_output_6addr(shell_output_func output, const uip_ipaddr_t *ipaddr)
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{
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char buf[UIPLIB_IPV6_MAX_STR_LEN];
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uiplib_ipaddr_snprint(buf, sizeof(buf), ipaddr);
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SHELL_OUTPUT(output, "%s", buf);
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}
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/*---------------------------------------------------------------------------*/
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void
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shell_output_lladdr(shell_output_func output, const linkaddr_t *lladdr)
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{
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if(lladdr == NULL) {
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SHELL_OUTPUT(output, "(NULL LL addr)");
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return;
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} else {
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unsigned int i;
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for(i = 0; i < LINKADDR_SIZE; i++) {
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if(i > 0 && i % 2 == 0) {
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SHELL_OUTPUT(output, ".");
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}
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SHELL_OUTPUT(output, "%02x", lladdr->u8[i]);
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}
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}
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}
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/*---------------------------------------------------------------------------*/
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static void
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output_prompt(shell_output_func output)
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{
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SHELL_OUTPUT(output, "#");
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shell_output_lladdr(output, &linkaddr_node_addr);
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SHELL_OUTPUT(output, "> ");
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}
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/*---------------------------------------------------------------------------*/
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PT_THREAD(shell_input(struct pt *pt, shell_output_func output, const char *cmd))
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{
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static char *args;
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static const struct shell_command_t *cmd_descr = NULL;
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PT_BEGIN(pt);
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/* Shave off any leading spaces. */
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while(*cmd == ' ') {
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cmd++;
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}
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/* Look for arguments */
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args = strchr(cmd, ' ');
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if(args != NULL) {
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*args = '\0';
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args++;
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}
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cmd_descr = shell_command_lookup(cmd);
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if(cmd_descr != NULL) {
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static struct pt cmd_pt;
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PT_SPAWN(pt, &cmd_pt, cmd_descr->func(&cmd_pt, output, args));
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} else {
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SHELL_OUTPUT(output, "Command not found. Type 'help' for a list of commands\n");
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}
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output_prompt(output);
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PT_END(pt);
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}
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/*---------------------------------------------------------------------------*/
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void
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shell_init(void)
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{
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shell_commands_init();
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}
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/** @} */
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