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nuttx-apps/nshlib/nsh_command.c
liuhaitao 4b8e0fde62 nshlib: Add 'rm -r' recursive remove directory support 
Change-Id: Iafecb0a25cc9d091a1aee8f381b217e67d6e3925
Signed-off-by: liuhaitao <liuhaitao@xiaomi.com>
2021-07-01 14:55:04 -07:00

1134 lines
31 KiB
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/****************************************************************************
* apps/nshlib/nsh_command.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <string.h>
#include <assert.h>
#ifdef CONFIG_NSH_BUILTIN_APPS
# include <nuttx/lib/builtin.h>
#endif
#if defined(CONFIG_SYSTEM_READLINE) && defined(CONFIG_READLINE_HAVE_EXTMATCH)
# include "system/readline.h"
#endif
#include "nsh.h"
#include "nsh_console.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Help command summary layout */
#define HELP_LINELEN 80
#define NUM_CMDS ((sizeof(g_cmdmap)/sizeof(struct cmdmap_s)) - 1)
/****************************************************************************
* Private Types
****************************************************************************/
struct cmdmap_s
{
FAR const char *cmd; /* Name of the command */
nsh_cmd_t handler; /* Function that handles the command */
uint8_t minargs; /* Minimum number of arguments (including command) */
uint8_t maxargs; /* Maximum number of arguments (including command) */
FAR const char *usage; /* Usage instructions for 'help' command */
};
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
#ifndef CONFIG_NSH_DISABLE_HELP
static int cmd_help(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
#endif
#ifndef CONFIG_NSH_DISABLESCRIPT
static int cmd_true(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
static int cmd_false(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
#endif
#ifndef CONFIG_NSH_DISABLE_EXIT
static int cmd_exit(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
#endif
static int cmd_unrecognized(FAR struct nsh_vtbl_s *vtbl, int argc,
char **argv);
/****************************************************************************
* Private Data
****************************************************************************/
static const struct cmdmap_s g_cmdmap[] =
{
#if defined(CONFIG_FILE_STREAM) && !defined(CONFIG_NSH_DISABLESCRIPT)
# ifndef CONFIG_NSH_DISABLE_SOURCE
{ ".", cmd_source, 2, 2, "<script-path>" },
# endif
#endif
#if !defined(CONFIG_NSH_DISABLESCRIPT) && !defined(CONFIG_NSH_DISABLE_TEST)
{ "[", cmd_lbracket, 4, CONFIG_NSH_MAXARGUMENTS, "<expression> ]" },
#endif
#ifndef CONFIG_NSH_DISABLE_HELP
{ "?", cmd_help, 1, 1, NULL },
#endif
#if defined(CONFIG_NET) && defined(CONFIG_NET_ROUTE) && !defined(CONFIG_NSH_DISABLE_ADDROUTE)
{ "addroute", cmd_addroute, 3, 4, "<target> [<netmask>] <router>" },
#endif
#if defined(CONFIG_NET) && defined(CONFIG_NET_ARP) && !defined(CONFIG_NSH_DISABLE_ARP)
#ifdef CONFIG_NETLINK_ROUTE
{ "arp", cmd_arp, 2, 4,
"[-t|-a <ipaddr>|-d <ipaddr>|-s <ipaddr> <hwaddr>]" },
#else
{ "arp", cmd_arp, 3, 4,
"[-a <ipaddr>|-d <ipaddr>|-s <ipaddr> <hwaddr>]" },
#endif
#endif
#if defined(CONFIG_NETUTILS_CODECS) && defined(CONFIG_CODECS_BASE64)
# ifndef CONFIG_NSH_DISABLE_BASE64DEC
{ "base64dec", cmd_base64decode, 2, 4, "[-w] [-f] <string or filepath>" },
# endif
# ifndef CONFIG_NSH_DISABLE_BASE64ENC
{ "base64enc", cmd_base64encode, 2, 4, "[-w] [-f] <string or filepath>" },
# endif
#endif
#ifndef CONFIG_NSH_DISABLE_BASENAME
{ "basename", cmd_basename, 2, 3, "<path> [<suffix>]" },
#endif
#if !defined(CONFIG_NSH_DISABLESCRIPT) && !defined(CONFIG_NSH_DISABLE_LOOPS)
{ "break", cmd_break, 1, 1, NULL },
#endif
#ifndef CONFIG_NSH_DISABLE_CAT
{ "cat", cmd_cat, 2, CONFIG_NSH_MAXARGUMENTS,
"<path> [<path> [<path> ...]]" },
#endif
#ifndef CONFIG_DISABLE_ENVIRON
# ifndef CONFIG_NSH_DISABLE_CD
{ "cd", cmd_cd, 1, 2, "[<dir-path>|-|~|..]" },
# endif
#endif
#ifndef CONFIG_NSH_DISABLE_CP
{ "cp", cmd_cp, 3, 3, "<source-path> <dest-path>" },
#endif
#ifndef CONFIG_NSH_DISABLE_CMP
{ "cmp", cmd_cmp, 3, 3, "<path1> <path2>" },
#endif
#ifndef CONFIG_NSH_DISABLE_DIRNAME
{ "dirname", cmd_dirname, 2, 2, "<path>" },
#endif
#ifndef CONFIG_NSH_DISABLE_DATE
{ "date", cmd_date, 1, 4, "[-s \"MMM DD HH:MM:SS YYYY\"] [-u]" },
#endif
#ifndef CONFIG_NSH_DISABLE_DD
{ "dd", cmd_dd, 3, 6,
"if=<infile> of=<outfile> [bs=<sectsize>] [count=<sectors>] "
"[skip=<sectors>]" },
# endif
#if defined(CONFIG_NET) && defined(CONFIG_NET_ROUTE) && !defined(CONFIG_NSH_DISABLE_DELROUTE)
{ "delroute", cmd_delroute, 2, 3, "<target> [<netmask>]" },
#endif
#if !defined(CONFIG_DISABLE_MOUNTPOINT) && !defined(CONFIG_NSH_DISABLE_DF)
#ifdef NSH_HAVE_CATFILE
#if defined(HAVE_DF_HUMANREADBLE) && defined(HAVE_DF_BLOCKOUTPUT)
{ "df", cmd_df, 1, 2, "[-h]" },
#else
{ "df", cmd_df, 1, 1, NULL },
#endif
#endif
#endif
#if defined(CONFIG_RAMLOG_SYSLOG) && !defined(CONFIG_NSH_DISABLE_DMESG)
{ "dmesg", cmd_dmesg, 1, 1, NULL },
#endif
#ifndef CONFIG_NSH_DISABLE_ECHO
# ifndef CONFIG_DISABLE_ENVIRON
{ "echo", cmd_echo, 1, CONFIG_NSH_MAXARGUMENTS,
"[-n] [<string|$name> [<string|$name>...]]" },
# else
{ "echo", cmd_echo, 1, CONFIG_NSH_MAXARGUMENTS,
"[-n] [<string> [<string>...]]" },
# endif
#endif
#ifndef CONFIG_NSH_DISABLE_ENV
{ "env", cmd_env, 1, 1, NULL },
#endif
#ifndef CONFIG_NSH_DISABLE_EXEC
{ "exec", cmd_exec, 2, 3, "<hex-address>" },
#endif
#ifndef CONFIG_NSH_DISABLE_EXIT
{ "exit", cmd_exit, 1, 1, NULL },
#endif
#ifndef CONFIG_NSH_DISABLE_EXPORT
{ "export", cmd_export, 2, 3, "[<name> [<value>]]" },
#endif
#ifndef CONFIG_NSH_DISABLESCRIPT
{ "false", cmd_false, 1, 1, NULL },
#endif
#ifndef CONFIG_NSH_DISABLE_FREE
{ "free", cmd_free, 1, 1, NULL },
#endif
#ifdef CONFIG_NET_UDP
# ifndef CONFIG_NSH_DISABLE_GET
{ "get", cmd_get, 4, 7,
"[-b|-n] [-f <local-path>] -h <ip-address> <remote-path>" },
# endif
#endif
#ifndef CONFIG_NSH_DISABLE_HELP
# ifdef CONFIG_NSH_HELP_TERSE
{ "help", cmd_help, 1, 2, "[<cmd>]" },
#else
{ "help", cmd_help, 1, 3, "[-v] [<cmd>]" },
# endif
#endif
#ifndef CONFIG_NSH_DISABLE_HEXDUMP
#ifndef CONFIG_NSH_CMDOPT_HEXDUMP
{ "hexdump", cmd_hexdump, 2, 2, "<file or device>" },
#else
{ "hexdump", cmd_hexdump, 2, 4,
"<file or device> [skip=<bytes>] [count=<bytes>]" },
#endif
#endif
#ifdef CONFIG_NET
# ifndef CONFIG_NSH_DISABLE_IFCONFIG
{ "ifconfig", cmd_ifconfig, 1, 11,
"[interface [<ip-address>|dhcp]] [dr|gw|gateway <dr-address>] "
"[netmask <net-mask>] [dns <dns-address>] [hw <hw-mac>]" },
# endif
# ifndef CONFIG_NSH_DISABLE_IFUPDOWN
{ "ifdown", cmd_ifdown, 2, 2, "<interface>" },
{ "ifup", cmd_ifup, 2, 2, "<interface>" },
# endif
#endif
#if defined(CONFIG_MODULE) && !defined(CONFIG_NSH_DISABLE_MODCMDS)
{ "insmod", cmd_insmod, 3, 3, "<file-path> <module-name>" },
#endif
#ifdef HAVE_IRQINFO
{ "irqinfo", cmd_irqinfo, 1, 1, NULL },
#endif
#ifndef CONFIG_NSH_DISABLE_KILL
{ "kill", cmd_kill, 2, 3, "[-<signal>] <pid>" },
#endif
#ifndef CONFIG_DISABLE_MOUNTPOINT
# if defined(CONFIG_DEV_LOOP) && !defined(CONFIG_NSH_DISABLE_LOSETUP)
{ "losetup", cmd_losetup, 3, 6,
"[-d <dev-path>] | [[-o <offset>] [-r] <dev-path> <file-path>]" },
# endif
#endif
#ifndef CONFIG_DISABLE_MOUNTPOINT
# if defined(CONFIG_SMART_DEV_LOOP) && !defined(CONFIG_NSH_DISABLE_LOSMART)
{ "losmart", cmd_losmart, 2, 11,
"[-d <dev-path>] | [[-m <minor>] [-o <offset>] [-e <erase-size>] "
"[-s <sect-size>] [-r] <file-path>]" },
# endif
#endif
#if !defined(CONFIG_NSH_DISABLE_LN) && defined(CONFIG_PSEUDOFS_SOFTLINKS)
{ "ln", cmd_ln, 3, 4, "[-s] <target> <link>" },
#endif
#ifndef CONFIG_NSH_DISABLE_LS
{ "ls", cmd_ls, 1, 5, "[-lRs] <dir-path>" },
#endif
#if defined(CONFIG_MODULE) && !defined(CONFIG_NSH_DISABLE_MODCMDS)
#if defined(CONFIG_FS_PROCFS) && !defined(CONFIG_FS_PROCFS_EXCLUDE_MODULE)
{ "lsmod", cmd_lsmod, 1, 1, NULL },
#endif
#endif
#ifndef CONFIG_NSH_DISABLE_MB
{ "mb", cmd_mb, 2, 3,
"<hex-address>[=<hex-value>] [<hex-byte-count>]" },
#endif
#if defined(CONFIG_NETUTILS_CODECS) && defined(CONFIG_CODECS_HASH_MD5)
# ifndef CONFIG_NSH_DISABLE_MD5
{ "md5", cmd_md5, 2, 3, "[-f] <string or filepath>" },
# endif
#endif
#ifdef NSH_HAVE_DIROPTS
# ifndef CONFIG_NSH_DISABLE_MKDIR
{ "mkdir", cmd_mkdir, 2, 2, "<path>" },
# endif
#endif
#if !defined(CONFIG_DISABLE_MOUNTPOINT) && defined(CONFIG_FSUTILS_MKFATFS)
# ifndef CONFIG_NSH_DISABLE_MKFATFS
{ "mkfatfs", cmd_mkfatfs, 2, 6,
"[-F <fatsize>] [-r <rootdirentries>] <block-driver>" },
# endif
#endif
#ifndef CONFIG_DISABLE_MOUNTPOINT
# if defined(CONFIG_PIPES) && CONFIG_DEV_FIFO_SIZE > 0 && \
!defined(CONFIG_NSH_DISABLE_MKFIFO)
{ "mkfifo", cmd_mkfifo, 2, 2, "<path>" },
# endif
#endif
#ifndef CONFIG_NSH_DISABLE_MKRD
{ "mkrd", cmd_mkrd, 2, 6,
"[-m <minor>] [-s <sector-size>] <nsectors>" },
#endif
#if !defined(CONFIG_DISABLE_MOUNTPOINT) && defined(CONFIG_FS_SMARTFS) && \
defined(CONFIG_FSUTILS_MKSMARTFS)
# ifndef CONFIG_NSH_DISABLE_MKSMARTFS
# ifdef CONFIG_SMARTFS_MULTI_ROOT_DIRS
{ "mksmartfs", cmd_mksmartfs, 2, 6,
"[-s <sector-size>] [-f] <path> [<num-root-directories>]" },
# else
{ "mksmartfs", cmd_mksmartfs, 2, 5, "[-s <sector-size>] [-f] <path>" },
# endif
# endif
#endif
#ifndef CONFIG_NSH_DISABLE_MH
{ "mh", cmd_mh, 2, 3,
"<hex-address>[=<hex-value>] [<hex-byte-count>]" },
#endif
#if !defined(CONFIG_DISABLE_MOUNTPOINT)
#ifndef CONFIG_NSH_DISABLE_MOUNT
#if defined(NSH_HAVE_CATFILE) && defined(HAVE_MOUNT_LIST)
{ "mount", cmd_mount, 1, 7,
"[-t <fstype> [-o <options>] [<block-device>] <mount-point>]" },
#else
{ "mount", cmd_mount, 4, 7,
"-t <fstype> [-o <options>] [<block-device>] <mount-point>" },
#endif
#endif
#endif
#ifdef NSH_HAVE_DIROPTS
# ifndef CONFIG_NSH_DISABLE_MV
{ "mv", cmd_mv, 3, 3, "<old-path> <new-path>" },
# endif
#endif
#ifndef CONFIG_NSH_DISABLE_MW
{ "mw", cmd_mw, 2, 3,
"<hex-address>[=<hex-value>] [<hex-byte-count>]" },
#endif
#if !defined(CONFIG_DISABLE_MOUNTPOINT) && defined(CONFIG_NET) && \
defined(CONFIG_NFS)
# ifndef CONFIG_NSH_DISABLE_NFSMOUNT
{ "nfsmount", cmd_nfsmount, 4, 5,
"<server-address> <mount-point> <remote-path> [udp]" },
# endif
#endif
#if defined(CONFIG_LIBC_NETDB) && !defined(CONFIG_NSH_DISABLE_NSLOOKUP)
{ "nslookup", cmd_nslookup, 2, 2, "<host-name>" },
#endif
#if !defined(CONFIG_DISABLE_MOUNTPOINT) && \
defined(CONFIG_NSH_LOGIN_PASSWD) && \
!defined(CONFIG_FSUTILS_PASSWD_READONLY)
# ifndef CONFIG_NSH_DISABLE_PASSWD
{ "passwd", cmd_passwd, 3, 3, "<username> <password>" },
# endif
#endif
#if defined(CONFIG_PM) && !defined(CONFIG_NSH_DISABLE_PMCONFIG)
{ "pmconfig", cmd_pmconfig, 1, 3,
"[stay|relax] [normal|idle|standby|sleep]" },
#endif
#if defined(CONFIG_BOARDCTL_POWEROFF) && !defined(CONFIG_NSH_DISABLE_POWEROFF)
{ "poweroff", cmd_poweroff, 1, 2, NULL },
#endif
#ifndef CONFIG_NSH_DISABLE_PRINTF
# ifndef CONFIG_DISABLE_ENVIRON
{ "printf", cmd_printf, 1, CONFIG_NSH_MAXARGUMENTS,
"[\\xNN] [\\n\\r\\t] [<string|$name> [<string|$name>...]]" },
# else
{ "printf", cmd_printf, 1, CONFIG_NSH_MAXARGUMENTS,
"[\\xNN] [\\n\\r\\t] [<string> [<string>...]]" },
# endif
#endif
#ifndef CONFIG_NSH_DISABLE_PS
{ "ps", cmd_ps, 1, 1, NULL },
#endif
#ifdef CONFIG_NET_UDP
# ifndef CONFIG_NSH_DISABLE_PUT
{ "put", cmd_put, 4, 7,
"[-b|-n] [-f <remote-path>] -h <ip-address> <local-path>" },
# endif
#endif
#ifndef CONFIG_DISABLE_ENVIRON
# ifndef CONFIG_NSH_DISABLE_PWD
{ "pwd", cmd_pwd, 1, 1, NULL },
# endif
#endif
#if !defined(CONFIG_NSH_DISABLE_READLINK) && defined(CONFIG_PSEUDOFS_SOFTLINKS)
{ "readlink", cmd_readlink, 2, 2, "<link>" },
#endif
#if defined(CONFIG_BOARDCTL_RESET) && !defined(CONFIG_NSH_DISABLE_REBOOT)
{ "reboot", cmd_reboot, 1, 2, NULL },
#endif
#ifdef NSH_HAVE_DIROPTS
# ifndef CONFIG_NSH_DISABLE_RM
{ "rm", cmd_rm, 2, 3, "[-r] <file-path>" },
# endif
#endif
#ifdef NSH_HAVE_DIROPTS
# ifndef CONFIG_NSH_DISABLE_RMDIR
{ "rmdir", cmd_rmdir, 2, 2, "<dir-path>" },
# endif
#endif
#if defined(CONFIG_MODULE) && !defined(CONFIG_NSH_DISABLE_MODCMDS)
{ "rmmod", cmd_rmmod, 2, 2, "<module-name>" },
#endif
#ifndef CONFIG_NSH_DISABLE_ROUTE
#if defined(CONFIG_NET_IPv4) && defined(CONFIG_NET_IPv6)
{ "route", cmd_route, 2, 2, "ipv4|ipv6" },
#elif defined(CONFIG_NET_IPv4)
{ "route", cmd_route, 1, 2, "[ipv4]" },
#elif defined(CONFIG_NET_IPv6)
{ "route", cmd_route, 1, 2, "[ipv6]" },
#endif
#endif
#if defined(CONFIG_RPTUN) && !defined(CONFIG_NSH_DISABLE_RPTUN)
{ "rptun", cmd_rptun, 3, 3, "start|stop <dev-path>" },
#endif
#ifndef CONFIG_NSH_DISABLE_SET
#ifdef CONFIG_NSH_VARS
# if !defined(CONFIG_DISABLE_ENVIRON) && !defined(CONFIG_NSH_DISABLESCRIPT)
{ "set", cmd_set, 1, 4, "[{+|-}{e|x|xe|ex}] [<name> <value>]" },
# elif !defined(CONFIG_DISABLE_ENVIRON) && defined(CONFIG_NSH_DISABLESCRIPT)
{ "set", cmd_set, 1, 3, "[<name> <value>]" },
# elif defined(CONFIG_DISABLE_ENVIRON) && !defined(CONFIG_NSH_DISABLESCRIPT)
{ "set", cmd_set, 1, 2, "[{+|-}{e|x|xe|ex}]" },
# endif
#else
# if !defined(CONFIG_DISABLE_ENVIRON) && !defined(CONFIG_NSH_DISABLESCRIPT)
{ "set", cmd_set, 2, 4, "[{+|-}{e|x|xe|ex}] [<name> <value>]" },
# elif !defined(CONFIG_DISABLE_ENVIRON) && defined(CONFIG_NSH_DISABLESCRIPT)
{ "set", cmd_set, 3, 3, "<name> <value>" },
# elif defined(CONFIG_DISABLE_ENVIRON) && !defined(CONFIG_NSH_DISABLESCRIPT)
{ "set", cmd_set, 2, 2, "{+|-}{e|x|xe|ex}" },
# endif
#endif
#endif /* CONFIG_NSH_DISABLE_SET */
#ifndef CONFIG_NSH_DISABLE_SHUTDOWN
#if defined(CONFIG_BOARDCTL_POWEROFF) && defined(CONFIG_BOARDCTL_RESET)
{ "shutdown", cmd_shutdown, 1, 2, "[--reboot]" },
#elif defined(CONFIG_BOARDCTL_POWEROFF)
{ "shutdown", cmd_shutdown, 1, 1, NULL },
#elif defined(CONFIG_BOARDCTL_RESET)
{ "shutdown", cmd_shutdown, 2, 2, "--reboot" },
#endif
#endif
#ifndef CONFIG_NSH_DISABLE_SLEEP
{ "sleep", cmd_sleep, 2, 2, "<sec>" },
#endif
#if defined(CONFIG_FILE_STREAM) && !defined(CONFIG_NSH_DISABLESCRIPT)
# ifndef CONFIG_NSH_DISABLE_SOURCE
{ "source", cmd_source, 2, 2, "<script-path>" },
# endif
#endif
#if !defined(CONFIG_NSH_DISABLESCRIPT) && !defined(CONFIG_NSH_DISABLE_TEST)
{ "test", cmd_test, 3, CONFIG_NSH_MAXARGUMENTS, "<expression>" },
#endif
#if defined(CONFIG_NSH_TELNET) && !defined(CONFIG_NSH_DISABLE_TELNETD)
#if defined(CONFIG_NET_IPv4) && defined(CONFIG_NET_IPv6)
{"telnetd", cmd_telnetd, 2, 2, "[ipv4|ipv6]" },
#else
{"telnetd", cmd_telnetd, 1, 1, NULL },
#endif
#endif
#ifndef CONFIG_NSH_DISABLE_TIME
{ "time", cmd_time, 2, 2, "\"<command>\"" },
#endif
#ifndef CONFIG_NSH_DISABLESCRIPT
{ "true", cmd_true, 1, 1, NULL },
#endif
#ifndef CONFIG_DISABLE_MOUNTPOINT
# ifndef CONFIG_NSH_DISABLE_TRUNCATE
{ "truncate", cmd_truncate, 4, 4, "-s <length> <file-path>" },
# endif
#endif
#ifndef CONFIG_NSH_DISABLE_UNAME
#ifdef CONFIG_NET
{ "uname", cmd_uname, 1, 7, "[-a | -imnoprsv]" },
#else
{ "uname", cmd_uname, 1, 7, "[-a | -imoprsv]" },
#endif
#endif
#if !defined(CONFIG_DISABLE_MOUNTPOINT)
# ifndef CONFIG_NSH_DISABLE_UMOUNT
{ "umount", cmd_umount, 2, 2, "<dir-path>" },
# endif
#endif
#ifndef CONFIG_NSH_DISABLE_UNSET
{ "unset", cmd_unset, 2, 2, "<name>" },
#endif
#if defined(CONFIG_NETUTILS_CODECS) && defined(CONFIG_CODECS_URLCODE)
# ifndef CONFIG_NSH_DISABLE_URLDECODE
{ "urldecode", cmd_urldecode, 2, 3, "[-f] <string or filepath>" },
# endif
# ifndef CONFIG_NSH_DISABLE_URLENCODE
{ "urlencode", cmd_urlencode, 2, 3, "[-f] <string or filepath>" },
# endif
#endif
#if !defined(CONFIG_DISABLE_MOUNTPOINT) && \
defined(CONFIG_NSH_LOGIN_PASSWD) && \
!defined(CONFIG_FSUTILS_PASSWD_READONLY)
# ifndef CONFIG_NSH_DISABLE_USERADD
{ "useradd", cmd_useradd, 3, 3, "<username> <password>" },
# endif
# ifndef CONFIG_NSH_DISABLE_USERDEL
{ "userdel", cmd_userdel, 2, 2, "<username>" },
# endif
#endif
#ifndef CONFIG_NSH_DISABLE_USLEEP
{ "usleep", cmd_usleep, 2, 2, "<usec>" },
#endif
#ifdef CONFIG_NET_TCP
# ifndef CONFIG_NSH_DISABLE_WGET
{ "wget", cmd_wget, 2, 4, "[-o <local-path>] <url>" },
# endif
#endif
#ifndef CONFIG_NSH_DISABLE_XD
{ "xd", cmd_xd, 3, 3, "<hex-address> <byte-count>" },
#endif
{ NULL, NULL, 1, 1, NULL }
};
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: help_cmdlist
****************************************************************************/
#ifndef CONFIG_NSH_DISABLE_HELP
static inline void help_cmdlist(FAR struct nsh_vtbl_s *vtbl)
{
unsigned int colwidth;
unsigned int cmdwidth;
unsigned int cmdsperline;
unsigned int ncmdrows;
unsigned int i;
unsigned int j;
unsigned int k;
/* Pick an optimal column width */
for (k = 0, colwidth = 0; k < NUM_CMDS; k++)
{
cmdwidth = strlen(g_cmdmap[k].cmd);
if (cmdwidth > colwidth)
{
colwidth = cmdwidth;
}
}
colwidth += 2;
/* Determine the number of commands to put on one line */
if (colwidth > HELP_LINELEN)
{
cmdsperline = 1;
}
else
{
cmdsperline = HELP_LINELEN / colwidth;
}
/* Determine the total number of lines to output */
ncmdrows = (NUM_CMDS + (cmdsperline - 1)) / cmdsperline;
/* Print the command name in 'ncmdrows' rows with 'cmdsperline' commands
* on each line.
*/
for (i = 0; i < ncmdrows; i++)
{
nsh_output(vtbl, " ");
for (j = 0, k = i;
j < cmdsperline && k < NUM_CMDS;
j++, k += ncmdrows)
{
nsh_output(vtbl, "%s", g_cmdmap[k].cmd);
for (cmdwidth = strlen(g_cmdmap[k].cmd);
cmdwidth < colwidth;
cmdwidth++)
{
nsh_output(vtbl, " ");
}
}
nsh_output(vtbl, "\n");
}
}
#endif
/****************************************************************************
* Name: help_usage
****************************************************************************/
#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_error(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 struct builtin_s *builtin;
unsigned int builtins_per_line;
unsigned int num_builtin_rows;
unsigned int builtin_width;
unsigned int num_builtins;
unsigned int column_width;
unsigned int i;
unsigned int j;
unsigned int k;
/* Count the number of built-in commands and get the optimal column width */
num_builtins = 0;
column_width = 0;
for (i = 0; (builtin = builtin_for_index(i)) != NULL; i++)
{
if (builtin->main == NULL)
{
continue;
}
num_builtins++;
builtin_width = strlen(builtin->name);
if (builtin_width > column_width)
{
column_width = builtin_width;
}
}
/* Skip the printing if no available built-in commands */
if (num_builtins == 0)
{
return;
}
column_width += 2;
/* Determine the number of commands to put on one line */
if (column_width > HELP_LINELEN)
{
builtins_per_line = 1;
}
else
{
builtins_per_line = HELP_LINELEN / column_width;
}
/* Determine the total number of lines to output */
num_builtin_rows = ((num_builtins + (builtins_per_line - 1)) /
builtins_per_line);
/* List the set of available built-in commands */
nsh_output(vtbl, "\nBuiltin Apps:\n");
for (i = 0; i < num_builtin_rows; i++)
{
nsh_output(vtbl, " ");
for (j = 0, k = i;
j < builtins_per_line &&
(builtin = builtin_for_index(k));
j++, k += num_builtin_rows)
{
if (builtin->main == NULL)
{
continue;
}
nsh_output(vtbl, "%s", builtin->name);
for (builtin_width = strlen(builtin->name);
builtin_width < column_width;
builtin_width++)
{
nsh_output(vtbl, " ");
}
}
nsh_output(vtbl, "\n");
}
#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_error(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 (ERROR) 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;
nsh_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_error(vtbl, g_fmtargrequired, cmd);
return ERROR;
}
else if (argc > cmdmap->maxargs)
{
/* More than the maximum number were provided */
nsh_error(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;
}
/****************************************************************************
* Name: nsh_extmatch_count
*
* Description:
* This support function is used to provide support for realine tab-
* completion logic nsh_extmatch_count() counts the number of matching
* nsh command names
*
* Input Parameters:
* name - A point to the name containing the name to be matched.
* matches - A table is size CONFIG_READLINE_MAX_EXTCMDS that can
* be used to remember matching name indices.
* namelen - The length of the name to match
*
* Returned Values:
* The number commands that match to the first namelen characters.
*
****************************************************************************/
#if defined(CONFIG_NSH_READLINE) && defined(CONFIG_READLINE_TABCOMPLETION) && \
defined(CONFIG_READLINE_HAVE_EXTMATCH)
int nsh_extmatch_count(FAR char *name, FAR int *matches, int namelen)
{
int nr_matches = 0;
int i;
for (i = 0; i < NUM_CMDS; i++)
{
if (strncmp(name, g_cmdmap[i].cmd, namelen) == 0)
{
matches[nr_matches] = i;
nr_matches++;
if (nr_matches >= CONFIG_READLINE_MAX_EXTCMDS)
{
break;
}
}
}
return nr_matches;
}
#endif
/****************************************************************************
* Name: nsh_extmatch_getname
*
* Description:
* This support function is used to provide support for realine tab-
* completion logic nsh_extmatch_getname() will return the full command
* string from an index that was previously saved by nsh_exmatch_count().
*
* Input Parameters:
* index - The index of the command name to be returned.
*
* Returned Values:
* The numb
*
****************************************************************************/
#if defined(CONFIG_NSH_READLINE) && defined(CONFIG_READLINE_TABCOMPLETION) && \
defined(CONFIG_READLINE_HAVE_EXTMATCH)
FAR const char *nsh_extmatch_getname(int index)
{
DEBUGASSERT(index > 0 && index <= NUM_CMDS);
return g_cmdmap[index].cmd;
}
#endif
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