788 lines
23 KiB
C
788 lines
23 KiB
C
/****************************************************************************
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* apps/nshlib/nsh_command.c
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*
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* Copyright (C) 2007-2014 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* 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 COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <string.h>
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#ifdef CONFIG_NSH_BUILTIN_APPS
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# include <nuttx/binfmt/builtin.h>
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#endif
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#include "nsh.h"
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#include "nsh_console.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Help command summary layout */
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#define MAX_CMDLEN 12
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#define CMDS_PER_LINE 6
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#define NUM_CMDS ((sizeof(g_cmdmap)/sizeof(struct cmdmap_s)) - 1)
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#define NUM_CMD_ROWS ((NUM_CMDS + (CMDS_PER_LINE-1)) / CMDS_PER_LINE)
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/****************************************************************************
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* Private Types
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****************************************************************************/
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struct cmdmap_s
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{
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const char *cmd; /* Name of the command */
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cmd_t handler; /* Function that handles the command */
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uint8_t minargs; /* Minimum number of arguments (including command) */
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uint8_t maxargs; /* Maximum number of arguments (including command) */
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const char *usage; /* Usage instructions for 'help' command */
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};
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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#ifndef CONFIG_NSH_DISABLE_HELP
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static int cmd_help(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
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#endif
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#ifndef CONFIG_NSH_DISABLESCRIPT
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static int cmd_true(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
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static int cmd_false(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
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#endif
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#ifndef CONFIG_NSH_DISABLE_EXIT
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static int cmd_exit(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
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#endif
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static int cmd_unrecognized(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static const struct cmdmap_s g_cmdmap[] =
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{
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#if !defined(CONFIG_NSH_DISABLESCRIPT) && !defined(CONFIG_NSH_DISABLE_TEST)
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{ "[", cmd_lbracket, 4, CONFIG_NSH_MAXARGUMENTS, "<expression> ]" },
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#endif
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#ifndef CONFIG_NSH_DISABLE_HELP
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{ "?", cmd_help, 1, 1, NULL },
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#endif
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#if defined(CONFIG_NET) && defined(CONFIG_NET_ROUTE) && !defined(CONFIG_NSH_DISABLE_ADDROUTE)
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{ "addroute", cmd_addroute, 4, 4, "<target> <netmask> <router>" },
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#endif
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#if defined(CONFIG_NETUTILS_CODECS) && defined(CONFIG_CODECS_BASE64)
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# ifndef CONFIG_NSH_DISABLE_BASE64DEC
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{ "base64dec", cmd_base64decode, 2, 4, "[-w] [-f] <string or filepath>" },
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# endif
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# ifndef CONFIG_NSH_DISABLE_BASE64ENC
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{ "base64enc", cmd_base64encode, 2, 4, "[-w] [-f] <string or filepath>" },
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# endif
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#endif
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#if !defined(CONFIG_NSH_DISABLESCRIPT) && !defined(CONFIG_NSH_DISABLE_LOOPS)
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{ "break", cmd_break, 1, 1, NULL },
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#endif
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#if CONFIG_NFILE_DESCRIPTORS > 0
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# ifndef CONFIG_NSH_DISABLE_CAT
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{ "cat", cmd_cat, 2, CONFIG_NSH_MAXARGUMENTS, "<path> [<path> [<path> ...]]" },
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# endif
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#ifndef CONFIG_DISABLE_ENVIRON
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# ifndef CONFIG_NSH_DISABLE_CD
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{ "cd", cmd_cd, 1, 2, "[<dir-path>|-|~|..]" },
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# endif
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#endif
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# ifndef CONFIG_NSH_DISABLE_CP
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{ "cp", cmd_cp, 3, 3, "<source-path> <dest-path>" },
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# endif
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# ifndef CONFIG_NSH_DISABLE_CMP
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{ "cmp", cmd_cmp, 3, 3, "<path1> <path2>" },
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# endif
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#endif
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#if defined (CONFIG_RTC) && !defined(CONFIG_DISABLE_CLOCK) && !defined(CONFIG_NSH_DISABLE_DATE)
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{ "date", cmd_date, 1, 3, "[-s \"MMM DD HH:MM:SS YYYY\"]" },
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#endif
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#if CONFIG_NFILE_DESCRIPTORS > 0 && !defined(CONFIG_NSH_DISABLE_DD)
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{ "dd", cmd_dd, 3, 6, "if=<infile> of=<outfile> [bs=<sectsize>] [count=<sectors>] [skip=<sectors>]" },
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# endif
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#if defined(CONFIG_NET) && defined(CONFIG_NET_ROUTE) && !defined(CONFIG_NSH_DISABLE_DELROUTE)
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{ "delroute", cmd_delroute, 3, 3, "<target> <netmask>" },
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#endif
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#if CONFIG_NFILE_DESCRIPTORS > 0 && !defined(CONFIG_DISABLE_MOUNTPOINT) && \
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defined(CONFIG_FS_READABLE) && !defined(CONFIG_NSH_DISABLE_DF)
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#ifdef CONFIG_NSH_CMDOPT_DF_H
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{ "df", cmd_df, 1, 2, "[-h]" },
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#else
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{ "df", cmd_df, 1, 1, NULL },
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#endif
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#endif
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#if CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_SYSLOG) && \
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defined(CONFIG_RAMLOG_SYSLOG) && !defined(CONFIG_NSH_DISABLE_DMESG)
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{ "dmesg", cmd_dmesg, 1, 1, NULL },
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#endif
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#ifndef CONFIG_NSH_DISABLE_ECHO
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# ifndef CONFIG_DISABLE_ENVIRON
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{ "echo", cmd_echo, 0, CONFIG_NSH_MAXARGUMENTS, "[<string|$name> [<string|$name>...]]" },
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# else
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{ "echo", cmd_echo, 0, CONFIG_NSH_MAXARGUMENTS, "[<string> [<string>...]]" },
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# endif
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#endif
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#ifndef CONFIG_NSH_DISABLE_EXEC
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{ "exec", cmd_exec, 2, 3, "<hex-address>" },
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#endif
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#ifndef CONFIG_NSH_DISABLE_EXIT
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{ "exit", cmd_exit, 1, 1, NULL },
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#endif
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#ifndef CONFIG_NSH_DISABLESCRIPT
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{ "false", cmd_false, 1, 1, NULL },
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#endif
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#ifndef CONFIG_NSH_DISABLE_FREE
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{ "free", cmd_free, 1, 1, NULL },
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#endif
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#if defined(CONFIG_NET_UDP) && CONFIG_NFILE_DESCRIPTORS > 0
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# ifndef CONFIG_NSH_DISABLE_GET
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{ "get", cmd_get, 4, 7, "[-b|-n] [-f <local-path>] -h <ip-address> <remote-path>" },
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# endif
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#endif
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#ifndef CONFIG_NSH_DISABLE_HELP
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# ifdef CONFIG_NSH_HELP_TERSE
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{ "help", cmd_help, 1, 2, "[<cmd>]" },
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#else
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{ "help", cmd_help, 1, 3, "[-v] [<cmd>]" },
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# endif
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#endif
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#if CONFIG_NFILE_DESCRIPTORS > 0
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#ifndef CONFIG_NSH_DISABLE_HEXDUMP
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#ifndef CONFIG_NSH_CMDOPT_HEXDUMP
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{ "hexdump", cmd_hexdump, 2, 2, "<file or device>" },
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#else
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{ "hexdump", cmd_hexdump, 2, 4, "<file or device> [skip=<bytes>] [count=<bytes>]" },
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#endif
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#endif
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#endif
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#ifdef CONFIG_NET
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# ifndef CONFIG_NSH_DISABLE_IFCONFIG
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{ "ifconfig", cmd_ifconfig, 1, 11, "[nic_name [<ip-address>|dhcp]] [dr|gw|gateway <dr-address>] [netmask <net-mask>] [dns <dns-address>] [hw <hw-mac>]" },
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# endif
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# ifndef CONFIG_NSH_DISABLE_IFUPDOWN
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{ "ifdown", cmd_ifdown, 2, 2, "<nic_name>" },
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{ "ifup", cmd_ifup, 2, 2, "<nic_name>" },
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# endif
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#endif
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#ifndef CONFIG_DISABLE_SIGNALS
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# ifndef CONFIG_NSH_DISABLE_KILL
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{ "kill", cmd_kill, 3, 3, "-<signal> <pid>" },
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# endif
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#endif
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#if CONFIG_NFILE_DESCRIPTORS > 0 && !defined(CONFIG_DISABLE_MOUNTPOINT)
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# ifndef CONFIG_NSH_DISABLE_LOSETUP
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{ "losetup", cmd_losetup, 3, 6, "[-d <dev-path>] | [[-o <offset>] [-r] <dev-path> <file-path>]" },
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# endif
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#endif
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#if CONFIG_NFILE_DESCRIPTORS > 0
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# ifndef CONFIG_NSH_DISABLE_LS
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{ "ls", cmd_ls, 1, 5, "[-lRs] <dir-path>" },
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# endif
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#endif
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#ifndef CONFIG_NSH_DISABLE_MB
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{ "mb", cmd_mb, 2, 3, "<hex-address>[=<hex-value>][ <hex-byte-count>]" },
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#endif
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#if defined(CONFIG_NETUTILS_CODECS) && defined(CONFIG_CODECS_HASH_MD5)
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# ifndef CONFIG_NSH_DISABLE_MD5
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{ "md5", cmd_md5, 2, 3, "[-f] <string or filepath>" },
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# endif
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#endif
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#if !defined(CONFIG_DISABLE_MOUNTPOINT) && CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_FS_WRITABLE)
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# ifndef CONFIG_NSH_DISABLE_MKDIR
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{ "mkdir", cmd_mkdir, 2, 2, "<path>" },
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# endif
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#endif
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#if !defined(CONFIG_DISABLE_MOUNTPOINT) && CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_FS_FAT)
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# ifndef CONFIG_NSH_DISABLE_MKFATFS
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{ "mkfatfs", cmd_mkfatfs, 2, 4, "[-F <fatsize>] <block-driver>" },
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# endif
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#endif
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#if !defined(CONFIG_DISABLE_MOUNTPOINT) && CONFIG_NFILE_DESCRIPTORS > 0
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# ifndef CONFIG_NSH_DISABLE_MKFIFO
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{ "mkfifo", cmd_mkfifo, 2, 2, "<path>" },
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# endif
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#endif
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#if !defined(CONFIG_DISABLE_MOUNTPOINT) && CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_FS_WRITABLE)
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# ifndef CONFIG_NSH_DISABLE_MKRD
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{ "mkrd", cmd_mkrd, 2, 6, "[-m <minor>] [-s <sector-size>] <nsectors>" },
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# endif
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#endif
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#if !defined(CONFIG_DISABLE_MOUNTPOINT) && CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_FS_SMARTFS)
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# ifndef CONFIG_NSH_DISABLE_MKSMARTFS
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#ifdef CONFIG_SMARTFS_MULTI_ROOT_DIRS
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{ "mksmartfs", cmd_mksmartfs, 2, 3, "<path> [<num-root-directories>]" },
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#else
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{ "mksmartfs", cmd_mksmartfs, 2, 2, "<path>" },
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#endif
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# endif
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#endif
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#ifndef CONFIG_NSH_DISABLE_MH
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{ "mh", cmd_mh, 2, 3, "<hex-address>[=<hex-value>][ <hex-byte-count>]" },
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#endif
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#if !defined(CONFIG_DISABLE_MOUNTPOINT) && CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_FS_READABLE)
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# ifndef CONFIG_NSH_DISABLE_MOUNT
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# ifdef CONFIG_NUTTX_KERNEL
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{ "mount", cmd_mount, 5, 5, "-t <fstype> [<block-device>] <mount-point>" },
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# else
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{ "mount", cmd_mount, 1, 5, "[-t <fstype> [<block-device>] <mount-point>]" },
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# endif
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# endif
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#endif
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#if !defined(CONFIG_DISABLE_MOUNTPOINT) && CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_FS_WRITABLE)
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# ifndef CONFIG_NSH_DISABLE_MV
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{ "mv", cmd_mv, 3, 3, "<old-path> <new-path>" },
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# endif
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#endif
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#ifndef CONFIG_NSH_DISABLE_MW
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{ "mw", cmd_mw, 2, 3, "<hex-address>[=<hex-value>][ <hex-byte-count>]" },
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#endif
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#if !defined(CONFIG_DISABLE_MOUNTPOINT) && CONFIG_NFILE_DESCRIPTORS > 0 && \
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defined(CONFIG_NET) && defined(CONFIG_NFS)
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# ifndef CONFIG_NSH_DISABLE_NFSMOUNT
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{ "nfsmount", cmd_nfsmount, 4, 4, "<server-address> <mount-point> <remote-path>" },
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# endif
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#endif
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#if defined(CONFIG_NET) && defined(CONFIG_NET_ICMP) && defined(CONFIG_NET_ICMP_PING) && \
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!defined(CONFIG_DISABLE_CLOCK) && !defined(CONFIG_DISABLE_SIGNALS)
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# ifndef CONFIG_NSH_DISABLE_PING
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{ "ping", cmd_ping, 2, 6, "[-c <count>] [-i <interval>] <ip-address>" },
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# endif
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#endif
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#ifndef CONFIG_NSH_DISABLE_PS
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{ "ps", cmd_ps, 1, 1, NULL },
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#endif
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#if defined(CONFIG_NET_UDP) && CONFIG_NFILE_DESCRIPTORS > 0
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# ifndef CONFIG_NSH_DISABLE_PUT
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{ "put", cmd_put, 4, 7, "[-b|-n] [-f <remote-path>] -h <ip-address> <local-path>" },
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# endif
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#endif
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#if CONFIG_NFILE_DESCRIPTORS > 0 && !defined(CONFIG_DISABLE_ENVIRON)
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# ifndef CONFIG_NSH_DISABLE_PWD
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{ "pwd", cmd_pwd, 1, 1, NULL },
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# endif
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#endif
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#if !defined(CONFIG_DISABLE_MOUNTPOINT) && CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_FS_WRITABLE)
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# ifndef CONFIG_NSH_DISABLE_RM
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{ "rm", cmd_rm, 2, 2, "<file-path>" },
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# endif
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# ifndef CONFIG_NSH_DISABLE_RMDIR
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{ "rmdir", cmd_rmdir, 2, 2, "<dir-path>" },
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# endif
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#endif
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#ifndef CONFIG_DISABLE_ENVIRON
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# ifndef CONFIG_NSH_DISABLE_SET
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{ "set", cmd_set, 3, 3, "<name> <value>" },
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# endif
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#endif
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#if CONFIG_NFILE_DESCRIPTORS > 0 && CONFIG_NFILE_STREAMS > 0 && !defined(CONFIG_NSH_DISABLESCRIPT)
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# ifndef CONFIG_NSH_DISABLE_SH
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{ "sh", cmd_sh, 2, 2, "<script-path>" },
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# endif
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#endif
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#ifndef CONFIG_DISABLE_SIGNALS
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# ifndef CONFIG_NSH_DISABLE_SLEEP
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{ "sleep", cmd_sleep, 2, 2, "<sec>" },
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# endif
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#endif
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#if !defined(CONFIG_NSH_DISABLESCRIPT) && !defined(CONFIG_NSH_DISABLE_TEST)
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{ "test", cmd_test, 3, CONFIG_NSH_MAXARGUMENTS, "<expression>" },
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#endif
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#ifndef CONFIG_NSH_DISABLESCRIPT
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{ "true", cmd_true, 1, 1, NULL },
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#endif
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#if !defined(CONFIG_DISABLE_MOUNTPOINT) && CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_FS_READABLE)
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# ifndef CONFIG_NSH_DISABLE_UMOUNT
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{ "umount", cmd_umount, 2, 2, "<dir-path>" },
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# endif
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#endif
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#ifndef CONFIG_DISABLE_ENVIRON
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# ifndef CONFIG_NSH_DISABLE_UNSET
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{ "unset", cmd_unset, 2, 2, "<name>" },
|
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# endif
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#endif
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#if defined(CONFIG_NETUTILS_CODECS) && defined(CONFIG_CODECS_URLCODE)
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# ifndef CONFIG_NSH_DISABLE_URLDECODE
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{ "urldecode", cmd_urldecode, 2, 3, "[-f] <string or filepath>" },
|
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# endif
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# ifndef CONFIG_NSH_DISABLE_URLENCODE
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{ "urlencode", cmd_urlencode, 2, 3, "[-f] <string or filepath>" },
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# endif
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#endif
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|
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#ifndef CONFIG_DISABLE_SIGNALS
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# ifndef CONFIG_NSH_DISABLE_USLEEP
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{ "usleep", cmd_usleep, 2, 2, "<usec>" },
|
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# endif
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#endif
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|
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#if defined(CONFIG_NET_TCP) && CONFIG_NFILE_DESCRIPTORS > 0
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# ifndef CONFIG_NSH_DISABLE_WGET
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{ "wget", cmd_wget, 2, 4, "[-o <local-path>] <url>" },
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# endif
|
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#endif
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#ifndef CONFIG_NSH_DISABLE_XD
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{ "xd", cmd_xd, 3, 3, "<hex-address> <byte-count>" },
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#endif
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{ NULL, NULL, 1, 1, NULL }
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};
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|
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/****************************************************************************
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|
* Public Data
|
|
****************************************************************************/
|
|
|
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/****************************************************************************
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|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: help_cmdlist
|
|
****************************************************************************/
|
|
|
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#ifndef CONFIG_NSH_DISABLE_HELP
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static inline void help_cmdlist(FAR struct nsh_vtbl_s *vtbl)
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{
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unsigned int i;
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unsigned int j;
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unsigned int k;
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|
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/* Print the command name in NUM_CMD_ROWS rows with CMDS_PER_LINE commands
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* on each line.
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*/
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for (i = 0; i < NUM_CMD_ROWS; i++)
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{
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nsh_output(vtbl, " ");
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for (j = 0, k = i; j < CMDS_PER_LINE && k < NUM_CMDS; j++, k += NUM_CMD_ROWS)
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{
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#ifdef CONFIG_NOPRINTF_FIELDWIDTH
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nsh_output(vtbl, "%s\t", g_cmdmap[k].cmd);
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#else
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nsh_output(vtbl, "%-12s", g_cmdmap[k].cmd);
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#endif
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}
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|
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nsh_output(vtbl, "\n");
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}
|
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}
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|
#endif
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|
|
/****************************************************************************
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|
* Name: help_usage
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|
****************************************************************************/
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|
|
|
#if !defined(CONFIG_NSH_DISABLE_HELP) && !defined(CONFIG_NSH_HELP_TERSE)
|
|
static inline void help_usage(FAR struct nsh_vtbl_s *vtbl)
|
|
{
|
|
nsh_output(vtbl, "NSH command forms:\n");
|
|
#ifndef CONFIG_NSH_DISABLEBG
|
|
nsh_output(vtbl, " [nice [-d <niceness>>]] <cmd> [> <file>|>> <file>] [&]\n\n");
|
|
#else
|
|
nsh_output(vtbl, " <cmd> [> <file>|>> <file>]\n\n");
|
|
#endif
|
|
#ifndef CONFIG_NSH_DISABLESCRIPT
|
|
#ifndef CONFIG_NSH_DISABLE_ITEF
|
|
nsh_output(vtbl, "OR\n");
|
|
nsh_output(vtbl, " if <cmd>\n");
|
|
nsh_output(vtbl, " then\n");
|
|
nsh_output(vtbl, " [sequence of <cmd>]\n");
|
|
nsh_output(vtbl, " else\n");
|
|
nsh_output(vtbl, " [sequence of <cmd>]\n");
|
|
nsh_output(vtbl, " fi\n\n");
|
|
#endif
|
|
#ifndef CONFIG_NSH_DISABLE_LOOPS
|
|
nsh_output(vtbl, "OR\n");
|
|
nsh_output(vtbl, " while <cmd>\n");
|
|
nsh_output(vtbl, " do\n");
|
|
nsh_output(vtbl, " [sequence of <cmd>]\n");
|
|
nsh_output(vtbl, " done\n\n");
|
|
nsh_output(vtbl, "OR\n");
|
|
nsh_output(vtbl, " until <cmd>\n");
|
|
nsh_output(vtbl, " do\n");
|
|
nsh_output(vtbl, " [sequence of <cmd>]\n");
|
|
nsh_output(vtbl, " done\n\n");
|
|
#endif
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: help_showcmd
|
|
****************************************************************************/
|
|
|
|
#ifndef CONFIG_NSH_DISABLE_HELP
|
|
static void help_showcmd(FAR struct nsh_vtbl_s *vtbl,
|
|
FAR const struct cmdmap_s *cmdmap)
|
|
{
|
|
if (cmdmap->usage)
|
|
{
|
|
nsh_output(vtbl, " %s %s\n", cmdmap->cmd, cmdmap->usage);
|
|
}
|
|
else
|
|
{
|
|
nsh_output(vtbl, " %s\n", cmdmap->cmd);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: help_cmd
|
|
****************************************************************************/
|
|
|
|
#ifndef CONFIG_NSH_DISABLE_HELP
|
|
static int help_cmd(FAR struct nsh_vtbl_s *vtbl, FAR const char *cmd)
|
|
{
|
|
FAR const struct cmdmap_s *cmdmap;
|
|
|
|
/* Find the command in the command table */
|
|
|
|
for (cmdmap = g_cmdmap; cmdmap->cmd; cmdmap++)
|
|
{
|
|
/* Is this the one we are looking for? */
|
|
|
|
if (strcmp(cmdmap->cmd, cmd) == 0)
|
|
{
|
|
/* Yes... show it */
|
|
|
|
nsh_output(vtbl, "%s usage:", cmd);
|
|
help_showcmd(vtbl, cmdmap);
|
|
return OK;
|
|
}
|
|
}
|
|
|
|
nsh_output(vtbl, g_fmtcmdnotfound, cmd);
|
|
return ERROR;
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: help_allcmds
|
|
****************************************************************************/
|
|
|
|
#if !defined(CONFIG_NSH_DISABLE_HELP) && !defined(CONFIG_NSH_HELP_TERSE)
|
|
static inline void help_allcmds(FAR struct nsh_vtbl_s *vtbl)
|
|
{
|
|
FAR const struct cmdmap_s *cmdmap;
|
|
|
|
/* Show all of the commands in the command table */
|
|
|
|
for (cmdmap = g_cmdmap; cmdmap->cmd; cmdmap++)
|
|
{
|
|
help_showcmd(vtbl, cmdmap);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: help_builtins
|
|
****************************************************************************/
|
|
|
|
#ifndef CONFIG_NSH_DISABLE_HELP
|
|
static inline void help_builtins(FAR struct nsh_vtbl_s *vtbl)
|
|
{
|
|
#ifdef CONFIG_NSH_BUILTIN_APPS
|
|
FAR const char *name;
|
|
int i;
|
|
|
|
/* List the set of available built-in commands */
|
|
|
|
nsh_output(vtbl, "\nBuiltin Apps:\n");
|
|
for (i = 0; (name = builtin_getname(i)) != NULL; i++)
|
|
{
|
|
nsh_output(vtbl, " %s\n", name);
|
|
}
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: cmd_help
|
|
****************************************************************************/
|
|
|
|
#ifndef CONFIG_NSH_DISABLE_HELP
|
|
static int cmd_help(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
|
|
{
|
|
FAR const char *cmd = NULL;
|
|
#ifndef CONFIG_NSH_HELP_TERSE
|
|
bool verbose = false;
|
|
int i;
|
|
#endif
|
|
|
|
/* The command may be followed by a verbose option */
|
|
|
|
#ifndef CONFIG_NSH_HELP_TERSE
|
|
i = 1;
|
|
if (argc > i)
|
|
{
|
|
if (strcmp(argv[i], "-v") == 0)
|
|
{
|
|
verbose = true;
|
|
i++;
|
|
}
|
|
}
|
|
|
|
/* The command line may end with a command name */
|
|
|
|
if (argc > i)
|
|
{
|
|
cmd = argv[i];
|
|
}
|
|
|
|
/* Show the generic usage if verbose is requested */
|
|
|
|
if (verbose)
|
|
{
|
|
help_usage(vtbl);
|
|
}
|
|
#else
|
|
if (argc > 1)
|
|
{
|
|
cmd = argv[1];
|
|
}
|
|
#endif
|
|
|
|
/* Are we showing help on a single command? */
|
|
|
|
if (cmd)
|
|
{
|
|
/* Yes.. show the single command */
|
|
|
|
help_cmd(vtbl, cmd);
|
|
}
|
|
else
|
|
{
|
|
/* In verbose mode, show detailed help for all commands */
|
|
|
|
#ifndef CONFIG_NSH_HELP_TERSE
|
|
if (verbose)
|
|
{
|
|
nsh_output(vtbl, "Where <cmd> is one of:\n");
|
|
help_allcmds(vtbl);
|
|
}
|
|
|
|
/* Otherwise, just show the list of command names */
|
|
|
|
else
|
|
#endif
|
|
{
|
|
help_cmd(vtbl, "help");
|
|
nsh_output(vtbl, "\n");
|
|
help_cmdlist(vtbl);
|
|
}
|
|
|
|
/* And show the list of built-in applications */
|
|
|
|
help_builtins(vtbl);
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: cmd_unrecognized
|
|
****************************************************************************/
|
|
|
|
static int cmd_unrecognized(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
|
|
{
|
|
nsh_output(vtbl, g_fmtcmdnotfound, argv[0]);
|
|
return ERROR;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: cmd_true
|
|
****************************************************************************/
|
|
|
|
#ifndef CONFIG_NSH_DISABLESCRIPT
|
|
static int cmd_true(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
|
|
{
|
|
return OK;
|
|
}
|
|
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: cmd_false
|
|
****************************************************************************/
|
|
|
|
#ifndef CONFIG_NSH_DISABLESCRIPT
|
|
static int cmd_false(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
|
|
{
|
|
return ERROR;
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: cmd_exit
|
|
****************************************************************************/
|
|
|
|
#ifndef CONFIG_NSH_DISABLE_EXIT
|
|
static int cmd_exit(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
|
|
{
|
|
nsh_exit(vtbl, 0);
|
|
return OK;
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: nsh_command
|
|
*
|
|
* Description:
|
|
* Execute the command in argv[0]
|
|
*
|
|
* Returned Value:
|
|
* -1 (ERRROR) if the command was unsuccessful
|
|
* 0 (OK) if the command was successful
|
|
*
|
|
****************************************************************************/
|
|
|
|
int nsh_command(FAR struct nsh_vtbl_s *vtbl, int argc, char *argv[])
|
|
{
|
|
const struct cmdmap_s *cmdmap;
|
|
const char *cmd;
|
|
cmd_t handler = cmd_unrecognized;
|
|
int ret;
|
|
|
|
/* The form of argv is:
|
|
*
|
|
* argv[0]: The command name. This is argv[0] when the arguments
|
|
* are, finally, received by the command vtblr
|
|
* argv[1]: The beginning of argument (up to CONFIG_NSH_MAXARGUMENTS)
|
|
* argv[argc]: NULL terminating pointer
|
|
*/
|
|
|
|
cmd = argv[0];
|
|
|
|
/* See if the command is one that we understand */
|
|
|
|
for (cmdmap = g_cmdmap; cmdmap->cmd; cmdmap++)
|
|
{
|
|
if (strcmp(cmdmap->cmd, cmd) == 0)
|
|
{
|
|
/* Check if a valid number of arguments was provided. We
|
|
* do this simple, imperfect checking here so that it does
|
|
* not have to be performed in each command.
|
|
*/
|
|
|
|
if (argc < cmdmap->minargs)
|
|
{
|
|
/* Fewer than the minimum number were provided */
|
|
|
|
nsh_output(vtbl, g_fmtargrequired, cmd);
|
|
return ERROR;
|
|
}
|
|
else if (argc > cmdmap->maxargs)
|
|
{
|
|
/* More than the maximum number were provided */
|
|
|
|
nsh_output(vtbl, g_fmttoomanyargs, cmd);
|
|
return ERROR;
|
|
}
|
|
else
|
|
{
|
|
/* A valid number of arguments were provided (this does
|
|
* not mean they are right).
|
|
*/
|
|
|
|
handler = cmdmap->handler;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
ret = handler(vtbl, argc, argv);
|
|
return ret;
|
|
}
|