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sc committed 2025-11-16 15:44:34 +08:00
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rt-thread/components/finsh/Kconfig
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menuconfig RT_USING_MSH
bool "MSH: command shell"
default n if RT_USING_NANO
default y
if RT_USING_MSH
config RT_USING_FINSH
bool
default y
config FINSH_USING_MSH
bool
default y
config FINSH_THREAD_NAME
string "The msh thread name"
default "tshell"
config FINSH_THREAD_PRIORITY
int "The priority level value of thread"
default 20
config FINSH_THREAD_STACK_SIZE
int "The stack size for thread"
default 4096
config FINSH_USING_HISTORY
bool "Enable command history feature"
default y
if FINSH_USING_HISTORY
config FINSH_HISTORY_LINES
int "The command history line number"
default 5
endif
config FINSH_USING_SYMTAB
bool "Using symbol table for commands"
default y
config FINSH_CMD_SIZE
int "The command line size for shell"
default 80
config MSH_USING_BUILT_IN_COMMANDS
bool "Enable built-in commands, such as list_thread"
default y
config FINSH_USING_DESCRIPTION
bool "Keeping description in symbol table"
default y
config FINSH_ECHO_DISABLE_DEFAULT
bool "Disable the echo mode in default"
default n
config FINSH_USING_AUTH
bool "shell support authentication"
default n
if FINSH_USING_AUTH
config FINSH_DEFAULT_PASSWORD
string "The default password for shell authentication"
default "rtthread"
config FINSH_PASSWORD_MIN
int "The password min length"
default 6
config FINSH_PASSWORD_MAX
int "The password max length"
default RT_NAME_MAX
endif
config FINSH_ARG_MAX
int "The number of arguments for a shell command"
default 10
config FINSH_USING_OPTION_COMPLETION
bool "command option completion enable"
default y
endif
rt-thread/components/finsh/SConscript
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from building import *
from gcc import GetGCCLikePLATFORM
cwd = GetCurrentDir()
src = Split('''
shell.c
msh.c
msh_parse.c
''')
CPPPATH = [cwd]
LOCAL_CFLAGS = ''
if rtconfig.PLATFORM in ['gcc']: # only for GCC
LOCAL_CFLAGS += ' -Wstack-usage=' + str(GetConfigValue('FINSH_THREAD_STACK_SIZE')) # check finsh thread stack size
if GetDepend('MSH_USING_BUILT_IN_COMMANDS'):
src += ['cmd.c']
if GetDepend('DFS_USING_POSIX'):
src += ['msh_file.c']
group = DefineGroup('Finsh', src, depend = ['RT_USING_FINSH'], CPPPATH = CPPPATH,
LOCAL_CFLAGS = LOCAL_CFLAGS)
Return('group')
rt-thread/components/finsh/cmd.c
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rt-thread/components/finsh/finsh.h
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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2010-03-22 Bernard first version
*/
#ifndef __FINSH_H__
#define __FINSH_H__
#include <rtdef.h>
#ifdef _MSC_VER
#pragma section("FSymTab$f",read)
#endif /* _MSC_VER */
#ifdef FINSH_USING_OPTION_COMPLETION
#define FINSH_COND(opt) opt,
#else
#define FINSH_COND(opt)
#endif
#ifdef FINSH_USING_DESCRIPTION
#define FINSH_DESC(cmd, desc) __fsym_##cmd##_desc,
#else
#define FINSH_DESC(cmd, desc)
#endif
typedef long (*syscall_func)(void);
#ifdef FINSH_USING_SYMTAB
#ifdef __TI_COMPILER_VERSION__
#define __TI_FINSH_EXPORT_FUNCTION(f) PRAGMA(DATA_SECTION(f,"FSymTab"))
#endif /* __TI_COMPILER_VERSION__ */
/**
* Macro to export a command along with its name, description, and options to the symbol table in MSVC.
* @param name The function name associated with the command.
* @param cmd The command name.
* @param desc The description of the command.
* @param opt The options associated with the command, used for option completion.
*/
#ifdef _MSC_VER
#define MSH_FUNCTION_EXPORT_CMD(name, cmd, desc, opt) \
const char __fsym_##cmd##_name[] = #cmd; \
const char __fsym_##cmd##_desc[] = #desc; \
__declspec(allocate("FSymTab$f")) \
const struct finsh_syscall __fsym_##cmd = \
{ \
__fsym_##cmd##_name, \
FINSH_DESC(cmd, desc) \
FINSH_COND(opt) \
(syscall_func)&name \
};
#pragma comment(linker, "/merge:FSymTab=mytext")
#elif defined(__TI_COMPILER_VERSION__)
#ifdef __TMS320C28XX__
#define RT_NOBLOCKED __attribute__((noblocked))
#else
#define RT_NOBLOCKED
#endif
#define MSH_FUNCTION_EXPORT_CMD(name, cmd, desc, opt) \
__TI_FINSH_EXPORT_FUNCTION(__fsym_##cmd); \
const char __fsym_##cmd##_name[] = #cmd; \
const char __fsym_##cmd##_desc[] = #desc; \
rt_used RT_NOBLOCKED const struct finsh_syscall __fsym_##cmd = \
{ \
__fsym_##cmd##_name, \
FINSH_DESC(cmd, desc) \
FINSH_COND(opt) \
(syscall_func)&name \
};
#else
#define MSH_FUNCTION_EXPORT_CMD(name, cmd, desc, opt) \
const char __fsym_##cmd##_name[] rt_section(".rodata.name") = #cmd; \
const char __fsym_##cmd##_desc[] rt_section(".rodata.name") = #desc; \
rt_used const struct finsh_syscall __fsym_##cmd rt_section("FSymTab")= \
{ \
__fsym_##cmd##_name, \
FINSH_DESC(cmd, desc) \
FINSH_COND(opt) \
(syscall_func)&name \
};
#endif /* _MSC_VER */
#endif /* FINSH_USING_SYMTAB */
/**
* Macro definitions to simplify the declaration of exported functions or commands.
*/
#define __MSH_GET_MACRO(_1, _2, _3, _FUN, ...) _FUN
#define __MSH_GET_EXPORT_MACRO(_1, _2, _3, _4, _FUN, ...) _FUN
#define _MSH_FUNCTION_CMD2(a0, a1) \
MSH_FUNCTION_EXPORT_CMD(a0, a0, a1, 0)
#define _MSH_FUNCTION_CMD2_OPT(a0, a1, a2) \
MSH_FUNCTION_EXPORT_CMD(a0, a0, a1, a0##_msh_options)
#define _MSH_FUNCTION_EXPORT_CMD3(a0, a1, a2) \
MSH_FUNCTION_EXPORT_CMD(a0, a1, a2, 0)
#define _MSH_FUNCTION_EXPORT_CMD3_OPT(a0, a1, a2, a3) \
MSH_FUNCTION_EXPORT_CMD(a0, a1, a2, a0##_msh_options)
/**
* @ingroup finsh
*
* This macro exports a system function to finsh shell.
*
* @param name the name of function.
* @param desc the description of function, which will show in help.
*/
#define FINSH_FUNCTION_EXPORT(name, desc)
/**
* @ingroup finsh
*
* This macro exports a system function with an alias name to finsh shell.
*
* @param name the name of function.
* @param alias the alias name of function.
* @param desc the description of function, which will show in help.
*/
#define FINSH_FUNCTION_EXPORT_ALIAS(name, alias, desc)
/**
* @ingroup msh
*
* This macro exports a command to module shell.
*
* @param command is the name of the command.
* @param desc is the description of the command, which will show in help list.
* @param opt This is an option, enter any content to enable option completion
*/
/* MSH_CMD_EXPORT(command, desc) or MSH_CMD_EXPORT(command, desc, opt) */
#define MSH_CMD_EXPORT(...) \
__MSH_GET_MACRO(__VA_ARGS__, _MSH_FUNCTION_CMD2_OPT, \
_MSH_FUNCTION_CMD2)(__VA_ARGS__)
/**
* @ingroup msh
*
* This macro exports a command with alias to module shell.
*
* @param command is the name of the command.
* @param alias is the alias of the command.
* @param desc is the description of the command, which will show in help list.
* @param opt This is an option, enter any content to enable option completion
* @note
* #define MSH_CMD_EXPORT_ALIAS(command, alias, desc) or
* #define MSH_CMD_EXPORT_ALIAS(command, alias, desc, opt)
*/
#define MSH_CMD_EXPORT_ALIAS(...) \
__MSH_GET_EXPORT_MACRO(__VA_ARGS__, _MSH_FUNCTION_EXPORT_CMD3_OPT, \
_MSH_FUNCTION_EXPORT_CMD3)(__VA_ARGS__)
/* system call table */
struct finsh_syscall
{
const char *name; /* the name of system call */
#if defined(FINSH_USING_DESCRIPTION) && defined(FINSH_USING_SYMTAB)
const char *desc; /* description of system call */
#endif
#ifdef FINSH_USING_OPTION_COMPLETION
struct msh_cmd_opt *opt;
#endif
syscall_func func; /* the function address of system call */
};
/* system call item */
struct finsh_syscall_item
{
struct finsh_syscall_item *next; /* next item */
struct finsh_syscall syscall; /* syscall */
};
#ifdef FINSH_USING_OPTION_COMPLETION
typedef struct msh_cmd_opt
{
rt_uint32_t id;
const char *name;
const char *des;
} msh_cmd_opt_t;
/* Command options declaration and definition macros */
/**
* Declares a static array of command options for a specific command.
* @param command The command associated with these options.
*/
#define CMD_OPTIONS_STATEMENT(command) static struct msh_cmd_opt command##_msh_options[];
/**
* Starts the definition of command options for a specific command.
* @param command The command these options are associated with.
*/
#define CMD_OPTIONS_NODE_START(command) static struct msh_cmd_opt command##_msh_options[] = {
/**
* Defines a single command option.
* @param _id Unique identifier for the option.
* @param _name The name of the option.
* @param _des Description of the option.
*/
#define CMD_OPTIONS_NODE(_id, _name, _des) {.id = _id, .name = #_name, .des = #_des},
/**
* Marks the end of command options definition.
*/
#define CMD_OPTIONS_NODE_END {0},};
void msh_opt_list_dump(void *options);
int msh_cmd_opt_id_get(int argc, char *argv[], void *options);
#define MSH_OPT_ID_GET(fun) msh_cmd_opt_id_get(argc, argv, (void*) fun##_msh_options)
#define MSH_OPT_DUMP(fun) msh_opt_list_dump((void*) fun##_msh_options)
#else
#define CMD_OPTIONS_STATEMENT(command)
#define CMD_OPTIONS_NODE_START(command)
#define CMD_OPTIONS_NODE(_id, _name, _des)
#define CMD_OPTIONS_NODE_END
#define MSH_OPT_ID_GET(fun) ((int)(-1UL))
#define MSH_OPT_DUMP(fun) do{}while(0)
#endif
extern struct finsh_syscall_item *global_syscall_list;
extern struct finsh_syscall *_syscall_table_begin, *_syscall_table_end;
#if defined(_MSC_VER) || (defined(__GNUC__) && defined(__x86_64__))
struct finsh_syscall *finsh_syscall_next(struct finsh_syscall *call);
#define FINSH_NEXT_SYSCALL(index) index=finsh_syscall_next(index)
#else
#define FINSH_NEXT_SYSCALL(index) index++
#endif
#if !defined(RT_USING_POSIX_STDIO) && defined(RT_USING_DEVICE)
void finsh_set_device(const char *device_name);
#endif
#endif
rt-thread/components/finsh/msh.c
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/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2013-03-30 Bernard the first verion for finsh
* 2014-01-03 Bernard msh can execute module.
* 2017-07-19 Aubr.Cool limit argc to RT_FINSH_ARG_MAX
*/
#include <rtthread.h>
#include <string.h>
#include <errno.h>
#ifdef RT_USING_FINSH
#ifndef FINSH_ARG_MAX
#define FINSH_ARG_MAX 8
#endif /* FINSH_ARG_MAX */
#include "msh.h"
#include "shell.h"
#ifdef DFS_USING_POSIX
#include <dfs_file.h>
#include <unistd.h>
#include <fcntl.h>
#endif /* DFS_USING_POSIX */
#ifdef RT_USING_MODULE
#include <dlmodule.h>
#endif /* RT_USING_MODULE */
typedef int (*cmd_function_t)(int argc, char **argv);
static int msh_help(int argc, char **argv)
{
rt_kprintf("RT-Thread shell commands:\n");
{
struct finsh_syscall *index;
for (index = _syscall_table_begin;
index < _syscall_table_end;
FINSH_NEXT_SYSCALL(index))
{
#if defined(FINSH_USING_DESCRIPTION) && defined(FINSH_USING_SYMTAB)
rt_kprintf("%-16s - %s\n", index->name, index->desc);
#else
rt_kprintf("%s ", index->name);
#endif
}
}
rt_kprintf("\n");
return 0;
}
MSH_CMD_EXPORT_ALIAS(msh_help, help, RT-Thread shell help);
#ifdef MSH_USING_BUILT_IN_COMMANDS
static int cmd_ps(int argc, char **argv)
{
extern long list_thread(void);
extern int list_module(void);
#ifdef RT_USING_MODULE
if ((argc == 2) && (strcmp(argv[1], "-m") == 0))
list_module();
else
#endif
list_thread();
return 0;
}
MSH_CMD_EXPORT_ALIAS(cmd_ps, ps, List threads in the system);
#ifdef RT_USING_HEAP
static int cmd_free(int argc, char **argv)
{
#ifdef RT_USING_MEMHEAP_AS_HEAP
extern void list_memheap(void);
list_memheap();
#else
rt_size_t total = 0, used = 0, max_used = 0;
rt_memory_info(&total, &used, &max_used);
rt_kprintf("total : %d\n", total);
rt_kprintf("used : %d\n", used);
rt_kprintf("maximum : %d\n", max_used);
rt_kprintf("available: %d\n", total - used);
#endif
return 0;
}
MSH_CMD_EXPORT_ALIAS(cmd_free, free, Show the memory usage in the system);
#endif /* RT_USING_HEAP */
#endif /* MSH_USING_BUILT_IN_COMMANDS */
static int msh_split(char *cmd, rt_size_t length, char *argv[FINSH_ARG_MAX])
{
char *ptr;
rt_size_t position;
rt_size_t argc;
rt_size_t i;
ptr = cmd;
position = 0;
argc = 0;
while (position < length)
{
/* strip bank and tab */
while ((*ptr == ' ' || *ptr == '\t') && position < length)
{
*ptr = '\0';
ptr ++;
position ++;
}
if (argc >= FINSH_ARG_MAX)
{
rt_kprintf("Too many args ! We only Use:\n");
for (i = 0; i < argc; i++)
{
rt_kprintf("%s ", argv[i]);
}
rt_kprintf("\n");
break;
}
if (position >= length) break;
/* handle string */
if (*ptr == '"')
{
ptr ++;
position ++;
argv[argc] = ptr;
argc ++;
/* skip this string */
while (*ptr != '"' && position < length)
{
if (*ptr == '\\')
{
if (*(ptr + 1) == '"')
{
ptr ++;
position ++;
}
}
ptr ++;
position ++;
}
if (position >= length) break;
/* skip '"' */
*ptr = '\0';
ptr ++;
position ++;
}
else
{
argv[argc] = ptr;
argc ++;
while ((*ptr != ' ' && *ptr != '\t') && position < length)
{
ptr ++;
position ++;
}
if (position >= length) break;
}
}
return argc;
}
static cmd_function_t msh_get_cmd(char *cmd, int size)
{
struct finsh_syscall *index;
cmd_function_t cmd_func = RT_NULL;
for (index = _syscall_table_begin;
index < _syscall_table_end;
FINSH_NEXT_SYSCALL(index))
{
if (strncmp(index->name, cmd, size) == 0 &&
index->name[size] == '\0')
{
cmd_func = (cmd_function_t)index->func;
break;
}
}
return cmd_func;
}
#if defined(RT_USING_MODULE) && defined(DFS_USING_POSIX)
/* Return 0 on module executed. Other value indicate error.
*/
int msh_exec_module(const char *cmd_line, int size)
{
int ret;
int fd = -1;
char *pg_name;
int length, cmd_length = 0;
if (size == 0)
return -RT_ERROR;
/* get the length of command0 */
while ((cmd_line[cmd_length] != ' ' && cmd_line[cmd_length] != '\t') && cmd_length < size)
cmd_length ++;
/* get name length */
length = cmd_length + 32;
/* allocate program name memory */
pg_name = (char *) rt_malloc(length + 3);
if (pg_name == RT_NULL)
return -RT_ENOMEM;
/* copy command0 */
rt_memcpy(pg_name, cmd_line, cmd_length);
pg_name[cmd_length] = '\0';
if (strstr(pg_name, ".mo") != RT_NULL || strstr(pg_name, ".MO") != RT_NULL)
{
/* try to open program */
fd = open(pg_name, O_RDONLY, 0);
/* search in /bin path */
if (fd < 0)
{
rt_snprintf(pg_name, length - 1, "/bin/%.*s", cmd_length, cmd_line);
fd = open(pg_name, O_RDONLY, 0);
}
}
else
{
/* add .mo and open program */
/* try to open program */
strcat(pg_name, ".mo");
fd = open(pg_name, O_RDONLY, 0);
/* search in /bin path */
if (fd < 0)
{
rt_snprintf(pg_name, length - 1, "/bin/%.*s.mo", cmd_length, cmd_line);
fd = open(pg_name, O_RDONLY, 0);
}
}
if (fd >= 0)
{
/* found program */
close(fd);
dlmodule_exec(pg_name, cmd_line, size);
ret = 0;
}
else
{
ret = -1;
}
rt_free(pg_name);
return ret;
}
#endif
static int _msh_exec_cmd(char *cmd, rt_size_t length, int *retp)
{
int argc;
rt_size_t cmd0_size = 0;
cmd_function_t cmd_func;
char *argv[FINSH_ARG_MAX];
RT_ASSERT(cmd);
RT_ASSERT(retp);
/* find the size of first command */
while (cmd0_size < length && (cmd[cmd0_size] != ' ' && cmd[cmd0_size] != '\t'))
cmd0_size ++;
if (cmd0_size == 0)
return -RT_ERROR;
cmd_func = msh_get_cmd(cmd, cmd0_size);
if (cmd_func == RT_NULL)
return -RT_ERROR;
/* split arguments */
rt_memset(argv, 0x00, sizeof(argv));
argc = msh_split(cmd, length, argv);
if (argc == 0)
return -RT_ERROR;
/* exec this command */
*retp = cmd_func(argc, argv);
return 0;
}
#if defined(RT_USING_SMART) && defined(DFS_USING_POSIX)
#include <lwp.h>
/* check whether a file of the given path exits */
static rt_bool_t _msh_lwp_cmd_exists(const char *path)
{
int fd = -1;
fd = open(path, O_RDONLY, 0);
if (fd < 0)
{
return RT_FALSE;
}
close(fd);
return RT_TRUE;
}
/*
* search for the file named "pg_name" or "pg_name.elf" at the given directory,
* and return its path. return NULL when not found.
*/
static char *_msh_exec_search_path(const char *path, const char *pg_name)
{
char *path_buffer = RT_NULL;
ssize_t pg_len = strlen(pg_name);
ssize_t base_len = 0;
if (path)
{
base_len = strlen(path);
}
path_buffer = rt_malloc(base_len + pg_len + 6);
if (path_buffer == RT_NULL)
{
return RT_NULL; /* no mem */
}
if (base_len > 0)
{
memcpy(path_buffer, path, base_len);
path_buffer[base_len] = '/';
path_buffer[base_len + 1] = '\0';
}
else
{
*path_buffer = '\0';
}
strcat(path_buffer, pg_name);
if (_msh_lwp_cmd_exists(path_buffer))
{
return path_buffer;
}
if (strstr(path_buffer, ".elf") != NULL)
{
goto not_found;
}
strcat(path_buffer, ".elf");
if (_msh_lwp_cmd_exists(path_buffer))
{
return path_buffer;
}
not_found:
rt_free(path_buffer);
return RT_NULL;
}
/*
* search for the file named "pg_name" or "pg_name.elf" at each env path,
* and return its path. return NULL when not found.
*/
static char *_msh_exec_search_env(const char *pg_name)
{
char *result = RT_NULL;
char *exec_path = RT_NULL;
char *search_path = RT_NULL;
char *pos = RT_NULL;
char tmp_ch = '\0';
if (!(exec_path = getenv("PATH")))
{
return RT_NULL;
}
/* exec path may need to be modified */
if (!(exec_path = strdup(exec_path)))
{
return RT_NULL;
}
pos = exec_path;
search_path = exec_path;
/* walk through the entire exec_path until finding the program wanted
or hitting its end */
while (1)
{
/* env paths are seperated by ':' */
if (*pos == ':' || *pos == '\0')
{
tmp_ch = *pos;
*pos = '\0';
result = _msh_exec_search_path(search_path, pg_name);
if (result || tmp_ch == '\0')
{
goto ret;
}
pos++;
search_path = pos;
continue;
}
pos++;
}
/* release the duplicated exec_path and return */
ret:
rt_free(exec_path);
return result;
}
int _msh_exec_lwp(int debug, char *cmd, rt_size_t length)
{
int argc;
int cmd0_size = 0;
char *argv[FINSH_ARG_MAX];
char *pg_name;
int ret;
/* find the size of first command */
while ((cmd[cmd0_size] != ' ' && cmd[cmd0_size] != '\t') && cmd0_size < length)
cmd0_size ++;
if (cmd0_size == 0)
return -1;
/* split arguments */
rt_memset(argv, 0x00, sizeof(argv));
argc = msh_split(cmd, length, argv);
if (argc == 0)
return -1;
/* try to find program in working directory */
pg_name = _msh_exec_search_path("", argv[0]);
if (pg_name)
{
goto found_program;
}
/* only check these paths when the first argument doesn't contain path
seperator */
if (strstr(argv[0], "/"))
{
return -1;
}
/* try to find program in /bin */
pg_name = _msh_exec_search_path("/bin", argv[0]);
if (pg_name)
{
goto found_program;
}
/* try to find program in dirs registered to env path */
pg_name = _msh_exec_search_env(argv[0]);
if (pg_name)
{
goto found_program;
}
/* not found in anywhere */
return -1;
/* found program */
found_program:
ret = exec(pg_name, debug, argc, argv);
rt_free(pg_name);
return ret;
}
#endif
int msh_exec(char *cmd, rt_size_t length)
{
int cmd_ret = 0;
/* strim the beginning of command */
while ((length > 0) && (*cmd == ' ' || *cmd == '\t'))
{
cmd++;
length--;
}
if (length == 0)
return 0;
/* Exec sequence:
* 1. built-in command
* 2. module(if enabled)
*/
if (_msh_exec_cmd(cmd, length, &cmd_ret) == 0)
{
return cmd_ret;
}
#ifdef DFS_USING_POSIX
#ifdef DFS_USING_WORKDIR
if (msh_exec_script(cmd, length) == 0)
{
return 0;
}
#endif
#ifdef RT_USING_MODULE
if (msh_exec_module(cmd, length) == 0)
{
return 0;
}
#endif /* RT_USING_MODULE */
#ifdef RT_USING_SMART
/* exec from msh_exec , debug = 0*/
/* _msh_exec_lwp return is pid , <= 0 means failed */
cmd_ret = _msh_exec_lwp(0, cmd, length);
if (cmd_ret > 0)
{
return 0;
}
#endif /* RT_USING_SMART */
#endif /* DFS_USING_POSIX */
/* truncate the cmd at the first space. */
{
char *tcmd;
tcmd = cmd;
while (*tcmd != ' ' && *tcmd != '\0')
{
tcmd++;
}
*tcmd = '\0';
}
#ifdef RT_USING_SMART
if (cmd_ret == -EACCES)
{
rt_kprintf("%s: Permission denied.\n", cmd);
}
else
#endif
{
rt_kprintf("%s: command not found.\n", cmd);
}
return -1;
}
static int str_common(const char *str1, const char *str2)
{
const char *str = str1;
while ((*str != 0) && (*str2 != 0) && (*str == *str2))
{
str ++;
str2 ++;
}
return (str - str1);
}
#ifdef DFS_USING_POSIX
void msh_auto_complete_path(char *path)
{
DIR *dir = RT_NULL;
struct dirent *dirent = RT_NULL;
char *full_path, *ptr, *index;
if (!path)
return;
full_path = (char *)rt_malloc(256);
if (full_path == RT_NULL) return; /* out of memory */
if (*path != '/')
{
getcwd(full_path, 256);
if (full_path[rt_strlen(full_path) - 1] != '/')
strcat(full_path, "/");
}
else *full_path = '\0';
index = RT_NULL;
ptr = path;
for (;;)
{
if (*ptr == '/') index = ptr + 1;
if (!*ptr) break;
ptr ++;
}
if (index == RT_NULL) index = path;
if (index != RT_NULL)
{
char *dest = index;
/* fill the parent path */
ptr = full_path;
while (*ptr) ptr ++;
for (index = path; index != dest;)
*ptr++ = *index++;
*ptr = '\0';
dir = opendir(full_path);
if (dir == RT_NULL) /* open directory failed! */
{
rt_free(full_path);
return;
}
/* restore the index position */
index = dest;
}
/* auto complete the file or directory name */
if (*index == '\0') /* display all of files and directories */
{
for (;;)
{
dirent = readdir(dir);
if (dirent == RT_NULL) break;
rt_kprintf("%s\n", dirent->d_name);
}
}
else
{
int multi = 0;
rt_size_t length, min_length;
min_length = 0;
for (;;)
{
dirent = readdir(dir);
if (dirent == RT_NULL) break;
/* matched the prefix string */
if (strncmp(index, dirent->d_name, rt_strlen(index)) == 0)
{
multi ++;
if (min_length == 0)
{
min_length = rt_strlen(dirent->d_name);
/* save dirent name */
strcpy(full_path, dirent->d_name);
}
length = str_common(dirent->d_name, full_path);
if (length < min_length)
{
min_length = length;
}
}
}
if (min_length)
{
if (multi > 1)
{
/* list the candidate */
rewinddir(dir);
for (;;)
{
dirent = readdir(dir);
if (dirent == RT_NULL) break;
if (strncmp(index, dirent->d_name, rt_strlen(index)) == 0)
rt_kprintf("%s\n", dirent->d_name);
}
}
length = index - path;
rt_memcpy(index, full_path, min_length);
path[length + min_length] = '\0';
/* try to locate folder */
if (multi == 1)
{
struct stat buffer = {0};
if ((stat(path, &buffer) == 0))
{
if (S_ISDIR(buffer.st_mode))
{
strcat(path, "/");
}
else if (S_ISLNK(buffer.st_mode))
{
DIR *dir = opendir(path);
if (dir)
{
closedir(dir);
strcat(path, "/");
}
}
}
}
}
}
closedir(dir);
rt_free(full_path);
}
#endif /* DFS_USING_POSIX */
void msh_auto_complete(char *prefix)
{
int length, min_length;
const char *name_ptr, *cmd_name;
struct finsh_syscall *index;
min_length = 0;
name_ptr = RT_NULL;
if (*prefix == '\0')
{
msh_help(0, RT_NULL);
return;
}
#ifdef DFS_USING_POSIX
/* check whether a spare in the command */
{
char *ptr;
ptr = prefix + rt_strlen(prefix);
while (ptr != prefix)
{
if (*ptr == ' ')
{
msh_auto_complete_path(ptr + 1);
break;
}
ptr --;
}
#if defined(RT_USING_MODULE) || defined(RT_USING_SMART)
/* There is a chance that the user want to run the module directly. So
* try to complete the file names. If the completed path is not a
* module, the system won't crash anyway. */
if (ptr == prefix)
{
msh_auto_complete_path(ptr);
}
#endif /* RT_USING_MODULE */
}
#endif /* DFS_USING_POSIX */
/* checks in internal command */
{
for (index = _syscall_table_begin; index < _syscall_table_end; FINSH_NEXT_SYSCALL(index))
{
/* skip finsh shell function */
cmd_name = (const char *) index->name;
if (strncmp(prefix, cmd_name, strlen(prefix)) == 0)
{
if (min_length == 0)
{
/* set name_ptr */
name_ptr = cmd_name;
/* set initial length */
min_length = strlen(name_ptr);
}
length = str_common(name_ptr, cmd_name);
if (length < min_length)
min_length = length;
rt_kprintf("%s\n", cmd_name);
}
}
}
/* auto complete string */
if (name_ptr != NULL)
{
rt_strncpy(prefix, name_ptr, min_length);
}
return ;
}
#ifdef FINSH_USING_OPTION_COMPLETION
static msh_cmd_opt_t *msh_get_cmd_opt(char *opt_str)
{
struct finsh_syscall *index;
msh_cmd_opt_t *opt = RT_NULL;
char *ptr;
int len;
ptr = strchr(opt_str, ' ');
if (ptr)
{
len = ptr - opt_str;
}
else
{
len = strlen(opt_str);
}
for (index = _syscall_table_begin;
index < _syscall_table_end;
FINSH_NEXT_SYSCALL(index))
{
if (strncmp(index->name, opt_str, len) == 0 && index->name[len] == '\0')
{
opt = index->opt;
break;
}
}
return opt;
}
static int msh_get_argc(char *prefix, char **last_argv)
{
int argc = 0;
char *ch = prefix;
while (*ch)
{
if ((*ch == ' ') && *(ch + 1) && (*(ch + 1) != ' '))
{
*last_argv = ch + 1;
argc++;
}
ch++;
}
return argc;
}
static void msh_opt_complete(char *opts_str, struct msh_cmd_opt *cmd_opt)
{
struct msh_cmd_opt *opt = cmd_opt;
const char *name_ptr = RT_NULL;
int min_length = 0, length, opts_str_len;
opts_str_len = strlen(opts_str);
for (opt = cmd_opt; opt->id; opt++)
{
if (!strncmp(opt->name, opts_str, opts_str_len))
{
if (min_length == 0)
{
/* set name_ptr */
name_ptr = opt->name;
/* set initial length */
min_length = strlen(name_ptr);
}
length = str_common(name_ptr, opt->name);
if (length < min_length)
{
min_length = length;
}
rt_kprintf("%s\n", opt->name);
}
}
rt_kprintf("\n");
if (name_ptr != NULL)
{
strncpy(opts_str, name_ptr, min_length);
}
}
static void msh_opt_help(msh_cmd_opt_t *cmd_opt)
{
msh_cmd_opt_t *opt = cmd_opt;
for (; opt->id; opt++)
{
rt_kprintf("%-16s - %s\n", opt->name, opt->des);
}
rt_kprintf("\n");
}
void msh_opt_auto_complete(char *prefix)
{
int argc;
char *opt_str = RT_NULL;
msh_cmd_opt_t *opt = RT_NULL;
argc = msh_get_argc(prefix, &opt_str);
if (argc)
{
opt = msh_get_cmd_opt(prefix);
}
else if (!msh_get_cmd(prefix, strlen(prefix)) && (' ' == prefix[strlen(prefix) - 1]))
{
opt = msh_get_cmd_opt(prefix);
}
if (opt && opt->id)
{
switch (argc)
{
case 0:
msh_opt_help(opt);
break;
case 1:
msh_opt_complete(opt_str, opt);
break;
default:
break;
}
}
}
int msh_cmd_opt_id_get(int argc, char *argv[], void *options)
{
msh_cmd_opt_t *opt = (msh_cmd_opt_t *) options;
int opt_id;
for (opt_id = 0; (argc >= 2) && opt && opt->id; opt++)
{
if (!strcmp(opt->name, argv[1]))
{
opt_id = opt->id;
break;
}
}
return opt_id;
}
void msh_opt_list_dump(void *options)
{
msh_cmd_opt_t *opt = (msh_cmd_opt_t *) options;
for (; opt && opt->id; opt++)
{
rt_kprintf(" %-16s - %s\n", opt->name, opt->des);
}
}
#endif /* FINSH_USING_OPTION_COMPLETION */
#endif /* RT_USING_FINSH */
rt-thread/components/finsh/msh.h
+26
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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2013-03-30 Bernard the first verion for FinSH
*/
#ifndef __M_SHELL__
#define __M_SHELL__
#include <rtthread.h>
int msh_exec(char *cmd, rt_size_t length);
void msh_auto_complete(char *prefix);
int msh_exec_module(const char *cmd_line, int size);
int msh_exec_script(const char *cmd_line, int size);
#ifdef FINSH_USING_OPTION_COMPLETION
void msh_opt_auto_complete(char *prefix);
#endif /* FINSH_USING_OPTION_COMPLETION */
#endif
rt-thread/components/finsh/msh_file.c
+1144
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rt-thread/components/finsh/msh_parse.c
+96
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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-05-25 WangQiang the first verion for msh parse
*/
#include <rtthread.h>
#include <ctype.h>
#define forstrloop(str) for (; '\0' != *(str); (str)++)
/**
* This function will check integer.
*
* @param strvalue string
*
* @return true or false
*/
rt_bool_t msh_isint(char *strvalue)
{
if ((RT_NULL == strvalue) || ('\0' == strvalue[0]))
{
return RT_FALSE;
}
if (('+' == *strvalue) || ('-' == *strvalue))
{
strvalue++;
}
forstrloop(strvalue)
{
if (!isdigit((int)(*strvalue)))
{
return RT_FALSE;
}
}
return RT_TRUE;
}
/**
* This function will check hex.
*
* @param strvalue string
*
* @return true or false
*/
rt_bool_t msh_ishex(char *strvalue)
{
int c;
if ((RT_NULL == strvalue) || ('\0' == strvalue[0]))
{
return RT_FALSE;
}
if ('0' != *(strvalue++))
{
return RT_FALSE;
}
if ('x' != *(strvalue++))
{
return RT_FALSE;
}
forstrloop(strvalue)
{
c = tolower(*strvalue);
if (!isxdigit(c))
{
return RT_FALSE;
}
}
return RT_TRUE;
}
/**
* This function will transform for string to hex.
*
* @param strvalue string
*
* @return integer transformed from string
*/
int msh_strtohex(char *strvalue)
{
char c = 0;
int value = 0;
strvalue += 2;
forstrloop(strvalue)
{
value *= 16;
c = tolower(*strvalue);
value += isdigit(c) ? c - '0' : c - 'a' + 10;
}
return value;
}
rt-thread/components/finsh/msh_parse.h
+20
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@@ -0,0 +1,20 @@
/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-05-25 WangQiang the first verion for msh parse
*/
#ifndef MSH_PARSE_H
#define MSH_PARSE_H
#include <rtdef.h>
rt_bool_t msh_isint(char *strvalue);
rt_bool_t msh_ishex(char *strvalue);
int msh_strtohex(char *strvalue);
#endif /* MSH_PARSE_H */
rt-thread/components/finsh/shell.c
+829
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@@ -0,0 +1,829 @@
/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2006-04-30 Bernard the first version for FinSH
* 2006-05-08 Bernard change finsh thread stack to 2048
* 2006-06-03 Bernard add support for skyeye
* 2006-09-24 Bernard remove the code related with hardware
* 2010-01-18 Bernard fix down then up key bug.
* 2010-03-19 Bernard fix backspace issue and fix device read in shell.
* 2010-04-01 Bernard add prompt output when start and remove the empty history
* 2011-02-23 Bernard fix variable section end issue of finsh shell
* initialization when use GNU GCC compiler.
* 2016-11-26 armink add password authentication
* 2018-07-02 aozima add custom prompt support.
*/
#include <rthw.h>
#include <string.h>
#include <stdio.h>
#ifdef RT_USING_FINSH
#include "shell.h"
#include "msh.h"
#ifdef DFS_USING_POSIX
#include <unistd.h>
#include <fcntl.h>
#endif /* DFS_USING_POSIX */
/* finsh thread */
#ifndef RT_USING_HEAP
static struct rt_thread finsh_thread;
rt_align(RT_ALIGN_SIZE)
static char finsh_thread_stack[FINSH_THREAD_STACK_SIZE];
struct finsh_shell _shell;
#endif
/* finsh symtab */
#ifdef FINSH_USING_SYMTAB
struct finsh_syscall *_syscall_table_begin = NULL;
struct finsh_syscall *_syscall_table_end = NULL;
#endif
struct finsh_shell *shell;
static char *finsh_prompt_custom = RT_NULL;
#if defined(_MSC_VER) || (defined(__GNUC__) && defined(__x86_64__))
struct finsh_syscall *finsh_syscall_next(struct finsh_syscall *call)
{
unsigned int *ptr;
ptr = (unsigned int *)(call + 1);
while ((*ptr == 0) && ((unsigned int *)ptr < (unsigned int *) _syscall_table_end))
ptr ++;
return (struct finsh_syscall *)ptr;
}
#endif /* defined(_MSC_VER) || (defined(__GNUC__) && defined(__x86_64__)) */
#ifdef RT_USING_HEAP
int finsh_set_prompt(const char *prompt)
{
if (finsh_prompt_custom)
{
rt_free(finsh_prompt_custom);
finsh_prompt_custom = RT_NULL;
}
/* strdup */
if (prompt)
{
finsh_prompt_custom = (char *)rt_malloc(strlen(prompt) + 1);
if (finsh_prompt_custom)
{
strcpy(finsh_prompt_custom, prompt);
}
}
return 0;
}
#endif /* RT_USING_HEAP */
#define _MSH_PROMPT "msh "
const char *finsh_get_prompt(void)
{
static char finsh_prompt[RT_CONSOLEBUF_SIZE + 1] = {0};
/* check prompt mode */
if (!shell->prompt_mode)
{
finsh_prompt[0] = '\0';
return finsh_prompt;
}
if (finsh_prompt_custom)
{
strncpy(finsh_prompt, finsh_prompt_custom, sizeof(finsh_prompt) - 1);
}
else
{
strcpy(finsh_prompt, _MSH_PROMPT);
}
#if defined(DFS_USING_POSIX) && defined(DFS_USING_WORKDIR)
/* get current working directory */
getcwd(&finsh_prompt[rt_strlen(finsh_prompt)], RT_CONSOLEBUF_SIZE - rt_strlen(finsh_prompt));
#endif
if (rt_strlen(finsh_prompt) + 2 < RT_CONSOLEBUF_SIZE)
{
finsh_prompt[rt_strlen(finsh_prompt)] = '>';
finsh_prompt[rt_strlen(finsh_prompt) + 1] = '\0';
}
return finsh_prompt;
}
/**
* @ingroup finsh
*
* This function get the prompt mode of finsh shell.
*
* @return prompt the prompt mode, 0 disable prompt mode, other values enable prompt mode.
*/
rt_uint32_t finsh_get_prompt_mode(void)
{
RT_ASSERT(shell != RT_NULL);
return shell->prompt_mode;
}
/**
* @ingroup finsh
*
* This function set the prompt mode of finsh shell.
*
* The parameter 0 disable prompt mode, other values enable prompt mode.
*
* @param prompt_mode the prompt mode
*/
void finsh_set_prompt_mode(rt_uint32_t prompt_mode)
{
RT_ASSERT(shell != RT_NULL);
shell->prompt_mode = prompt_mode;
}
int finsh_getchar(void)
{
#ifdef RT_USING_DEVICE
char ch = 0;
#ifdef RT_USING_POSIX_STDIO
if(read(STDIN_FILENO, &ch, 1) > 0)
{
return ch;
}
else
{
return -1; /* EOF */
}
#else
rt_device_t device;
RT_ASSERT(shell != RT_NULL);
device = shell->device;
if (device == RT_NULL)
{
return -1; /* EOF */
}
while (rt_device_read(device, -1, &ch, 1) != 1)
{
rt_sem_take(&shell->rx_sem, RT_WAITING_FOREVER);
if (shell->device != device)
{
device = shell->device;
if (device == RT_NULL)
{
return -1;
}
}
}
return ch;
#endif /* RT_USING_POSIX_STDIO */
#else
extern char rt_hw_console_getchar(void);
return rt_hw_console_getchar();
#endif /* RT_USING_DEVICE */
}
#if !defined(RT_USING_POSIX_STDIO) && defined(RT_USING_DEVICE)
static rt_err_t finsh_rx_ind(rt_device_t dev, rt_size_t size)
{
RT_ASSERT(shell != RT_NULL);
/* release semaphore to let finsh thread rx data */
rt_sem_release(&shell->rx_sem);
return RT_EOK;
}
/**
* @ingroup finsh
*
* This function sets the input device of finsh shell.
*
* @param device_name the name of new input device.
*/
void finsh_set_device(const char *device_name)
{
rt_device_t dev = RT_NULL;
RT_ASSERT(shell != RT_NULL);
dev = rt_device_find(device_name);
if (dev == RT_NULL)
{
rt_kprintf("finsh: can not find device: %s\n", device_name);
return;
}
/* check whether it's a same device */
if (dev == shell->device) return;
/* open this device and set the new device in finsh shell */
if (rt_device_open(dev, RT_DEVICE_OFLAG_RDWR | RT_DEVICE_FLAG_INT_RX | \
RT_DEVICE_FLAG_STREAM) == RT_EOK)
{
if (shell->device != RT_NULL)
{
/* close old finsh device */
rt_device_close(shell->device);
rt_device_set_rx_indicate(shell->device, RT_NULL);
}
/* clear line buffer before switch to new device */
rt_memset(shell->line, 0, sizeof(shell->line));
shell->line_curpos = shell->line_position = 0;
shell->device = dev;
rt_device_set_rx_indicate(dev, finsh_rx_ind);
}
}
/**
* @ingroup finsh
*
* This function returns current finsh shell input device.
*
* @return the finsh shell input device name is returned.
*/
const char *finsh_get_device()
{
RT_ASSERT(shell != RT_NULL);
return shell->device->parent.name;
}
#endif /* !defined(RT_USING_POSIX_STDIO) && defined(RT_USING_DEVICE) */
/**
* @ingroup finsh
*
* This function set the echo mode of finsh shell.
*
* FINSH_OPTION_ECHO=0x01 is echo mode, other values are none-echo mode.
*
* @param echo the echo mode
*/
void finsh_set_echo(rt_uint32_t echo)
{
RT_ASSERT(shell != RT_NULL);
shell->echo_mode = (rt_uint8_t)echo;
}
/**
* @ingroup finsh
*
* This function gets the echo mode of finsh shell.
*
* @return the echo mode
*/
rt_uint32_t finsh_get_echo()
{
RT_ASSERT(shell != RT_NULL);
return shell->echo_mode;
}
#ifdef FINSH_USING_AUTH
/**
* set a new password for finsh
*
* @param password new password
*
* @return result, RT_EOK on OK, -RT_ERROR on the new password length is less than
* FINSH_PASSWORD_MIN or greater than FINSH_PASSWORD_MAX
*/
rt_err_t finsh_set_password(const char *password)
{
rt_base_t level;
rt_size_t pw_len = rt_strlen(password);
if (pw_len < FINSH_PASSWORD_MIN || pw_len > FINSH_PASSWORD_MAX)
return -RT_ERROR;
level = rt_hw_interrupt_disable();
rt_strncpy(shell->password, password, FINSH_PASSWORD_MAX);
rt_hw_interrupt_enable(level);
return RT_EOK;
}
/**
* get the finsh password
*
* @return password
*/
const char *finsh_get_password(void)
{
return shell->password;
}
static void finsh_wait_auth(void)
{
int ch;
rt_bool_t input_finish = RT_FALSE;
char password[FINSH_PASSWORD_MAX] = { 0 };
rt_size_t cur_pos = 0;
/* password not set */
if (rt_strlen(finsh_get_password()) == 0) return;
while (1)
{
rt_kprintf("Password for login: ");
while (!input_finish)
{
while (1)
{
/* read one character from device */
ch = (int)finsh_getchar();
if (ch < 0)
{
continue;
}
if (ch >= ' ' && ch <= '~' && cur_pos < FINSH_PASSWORD_MAX)
{
/* change the printable characters to '*' */
rt_kprintf("*");
password[cur_pos++] = ch;
}
else if (ch == '\b' && cur_pos > 0)
{
/* backspace */
cur_pos--;
password[cur_pos] = '\0';
rt_kprintf("\b \b");
}
else if (ch == '\r' || ch == '\n')
{
rt_kprintf("\n");
input_finish = RT_TRUE;
break;
}
}
}
if (!rt_strncmp(shell->password, password, FINSH_PASSWORD_MAX)) return;
else
{
/* authentication failed, delay 2S for retry */
rt_thread_delay(2 * RT_TICK_PER_SECOND);
rt_kprintf("Sorry, try again.\n");
cur_pos = 0;
input_finish = RT_FALSE;
rt_memset(password, '\0', FINSH_PASSWORD_MAX);
}
}
}
#endif /* FINSH_USING_AUTH */
static void shell_auto_complete(char *prefix)
{
rt_kprintf("\n");
msh_auto_complete(prefix);
#ifdef FINSH_USING_OPTION_COMPLETION
msh_opt_auto_complete(prefix);
#endif
rt_kprintf("%s%s", FINSH_PROMPT, prefix);
}
#ifdef FINSH_USING_HISTORY
static rt_bool_t shell_handle_history(struct finsh_shell *shell)
{
#if defined(_WIN32)
int i;
rt_kprintf("\r");
for (i = 0; i <= 60; i++)
putchar(' ');
rt_kprintf("\r");
#else
rt_kprintf("\033[2K\r");
#endif
rt_kprintf("%s%s", FINSH_PROMPT, shell->line);
return RT_FALSE;
}
static void shell_push_history(struct finsh_shell *shell)
{
if (shell->line_position != 0)
{
/* push history */
if (shell->history_count >= FINSH_HISTORY_LINES)
{
/* if current cmd is same as last cmd, don't push */
if (memcmp(&shell->cmd_history[FINSH_HISTORY_LINES - 1], shell->line, FINSH_CMD_SIZE))
{
/* move history */
int index;
for (index = 0; index < FINSH_HISTORY_LINES - 1; index ++)
{
rt_memcpy(&shell->cmd_history[index][0],
&shell->cmd_history[index + 1][0], FINSH_CMD_SIZE);
}
rt_memset(&shell->cmd_history[index][0], 0, FINSH_CMD_SIZE);
rt_memcpy(&shell->cmd_history[index][0], shell->line, shell->line_position);
/* it's the maximum history */
shell->history_count = FINSH_HISTORY_LINES;
}
}
else
{
/* if current cmd is same as last cmd, don't push */
if (shell->history_count == 0 || memcmp(&shell->cmd_history[shell->history_count - 1], shell->line, FINSH_CMD_SIZE))
{
shell->current_history = shell->history_count;
rt_memset(&shell->cmd_history[shell->history_count][0], 0, FINSH_CMD_SIZE);
rt_memcpy(&shell->cmd_history[shell->history_count][0], shell->line, shell->line_position);
/* increase count and set current history position */
shell->history_count ++;
}
}
}
shell->current_history = shell->history_count;
}
#endif
#ifdef RT_USING_HOOK
static void (*_finsh_thread_entry_hook)(void);
/**
* @ingroup finsh
*
* @brief This function set a hook function at the entry of finsh thread
*
* @param hook the function point to be called
*/
void finsh_thread_entry_sethook(void (*hook)(void))
{
_finsh_thread_entry_hook = hook;
}
#endif /* RT_USING_HOOK */
static void finsh_thread_entry(void *parameter)
{
int ch;
RT_OBJECT_HOOK_CALL(_finsh_thread_entry_hook, ());
/* normal is echo mode */
#ifndef FINSH_ECHO_DISABLE_DEFAULT
shell->echo_mode = 1;
#else
shell->echo_mode = 0;
#endif
#if !defined(RT_USING_POSIX_STDIO) && defined(RT_USING_DEVICE)
/* set console device as shell device */
if (shell->device == RT_NULL)
{
rt_device_t console = rt_console_get_device();
if (console)
{
finsh_set_device(console->parent.name);
}
}
#endif /* !defined(RT_USING_POSIX_STDIO) && defined(RT_USING_DEVICE) */
#ifdef FINSH_USING_AUTH
/* set the default password when the password isn't setting */
if (rt_strlen(finsh_get_password()) == 0)
{
if (finsh_set_password(FINSH_DEFAULT_PASSWORD) != RT_EOK)
{
rt_kprintf("Finsh password set failed.\n");
}
}
/* waiting authenticate success */
finsh_wait_auth();
#endif
rt_kprintf(FINSH_PROMPT);
while (1)
{
ch = (int)finsh_getchar();
if (ch < 0)
{
continue;
}
/*
* handle control key
* up key : 0x1b 0x5b 0x41
* down key: 0x1b 0x5b 0x42
* right key:0x1b 0x5b 0x43
* left key: 0x1b 0x5b 0x44
*/
if (ch == 0x1b)
{
shell->stat = WAIT_SPEC_KEY;
continue;
}
else if (shell->stat == WAIT_SPEC_KEY)
{
if (ch == 0x5b)
{
shell->stat = WAIT_FUNC_KEY;
continue;
}
shell->stat = WAIT_NORMAL;
}
else if (shell->stat == WAIT_FUNC_KEY)
{
shell->stat = WAIT_NORMAL;
if (ch == 0x41) /* up key */
{
#ifdef FINSH_USING_HISTORY
/* prev history */
if (shell->current_history > 0)
shell->current_history --;
else
{
shell->current_history = 0;
continue;
}
/* copy the history command */
rt_memcpy(shell->line, &shell->cmd_history[shell->current_history][0],
FINSH_CMD_SIZE);
shell->line_curpos = shell->line_position = (rt_uint16_t)strlen(shell->line);
shell_handle_history(shell);
#endif
continue;
}
else if (ch == 0x42) /* down key */
{
#ifdef FINSH_USING_HISTORY
/* next history */
if (shell->current_history < shell->history_count - 1)
shell->current_history ++;
else
{
/* set to the end of history */
if (shell->history_count != 0)
shell->current_history = shell->history_count - 1;
else
continue;
}
rt_memcpy(shell->line, &shell->cmd_history[shell->current_history][0],
FINSH_CMD_SIZE);
shell->line_curpos = shell->line_position = (rt_uint16_t)strlen(shell->line);
shell_handle_history(shell);
#endif
continue;
}
else if (ch == 0x44) /* left key */
{
if (shell->line_curpos)
{
rt_kprintf("\b");
shell->line_curpos --;
}
continue;
}
else if (ch == 0x43) /* right key */
{
if (shell->line_curpos < shell->line_position)
{
rt_kprintf("%c", shell->line[shell->line_curpos]);
shell->line_curpos ++;
}
continue;
}
}
/* received null or error */
if (ch == '\0' || ch == 0xFF) continue;
/* handle tab key */
else if (ch == '\t')
{
int i;
/* move the cursor to the beginning of line */
for (i = 0; i < shell->line_curpos; i++)
rt_kprintf("\b");
/* auto complete */
shell_auto_complete(&shell->line[0]);
/* re-calculate position */
shell->line_curpos = shell->line_position = (rt_uint16_t)strlen(shell->line);
continue;
}
/* handle backspace key */
else if (ch == 0x7f || ch == 0x08)
{
/* note that shell->line_curpos >= 0 */
if (shell->line_curpos == 0)
continue;
shell->line_position--;
shell->line_curpos--;
if (shell->line_position > shell->line_curpos)
{
int i;
rt_memmove(&shell->line[shell->line_curpos],
&shell->line[shell->line_curpos + 1],
shell->line_position - shell->line_curpos);
shell->line[shell->line_position] = 0;
rt_kprintf("\b%s \b", &shell->line[shell->line_curpos]);
/* move the cursor to the origin position */
for (i = shell->line_curpos; i <= shell->line_position; i++)
rt_kprintf("\b");
}
else
{
rt_kprintf("\b \b");
shell->line[shell->line_position] = 0;
}
continue;
}
/* handle end of line, break */
if (ch == '\r' || ch == '\n')
{
#ifdef FINSH_USING_HISTORY
shell_push_history(shell);
#endif
if (shell->echo_mode)
rt_kprintf("\n");
msh_exec(shell->line, shell->line_position);
rt_kprintf(FINSH_PROMPT);
rt_memset(shell->line, 0, sizeof(shell->line));
shell->line_curpos = shell->line_position = 0;
continue;
}
/* it's a large line, discard it */
if (shell->line_position >= FINSH_CMD_SIZE)
shell->line_position = 0;
/* normal character */
if (shell->line_curpos < shell->line_position)
{
int i;
rt_memmove(&shell->line[shell->line_curpos + 1],
&shell->line[shell->line_curpos],
shell->line_position - shell->line_curpos);
shell->line[shell->line_curpos] = ch;
if (shell->echo_mode)
rt_kprintf("%s", &shell->line[shell->line_curpos]);
/* move the cursor to new position */
for (i = shell->line_curpos; i < shell->line_position; i++)
rt_kprintf("\b");
}
else
{
shell->line[shell->line_position] = ch;
if (shell->echo_mode)
rt_kprintf("%c", ch);
}
ch = 0;
shell->line_position ++;
shell->line_curpos++;
if (shell->line_position >= FINSH_CMD_SIZE)
{
/* clear command line */
shell->line_position = 0;
shell->line_curpos = 0;
}
} /* end of device read */
}
static void finsh_system_function_init(const void *begin, const void *end)
{
_syscall_table_begin = (struct finsh_syscall *) begin;
_syscall_table_end = (struct finsh_syscall *) end;
}
#if defined(__ICCARM__) || defined(__ICCRX__) /* for IAR compiler */
#ifdef FINSH_USING_SYMTAB
#pragma section="FSymTab"
#endif
#elif defined(__ADSPBLACKFIN__) /* for VisaulDSP++ Compiler*/
#ifdef FINSH_USING_SYMTAB
extern "asm" int __fsymtab_start;
extern "asm" int __fsymtab_end;
#endif
#elif defined(_MSC_VER)
#pragma section("FSymTab$a", read)
const char __fsym_begin_name[] = "__start";
const char __fsym_begin_desc[] = "begin of finsh";
__declspec(allocate("FSymTab$a")) const struct finsh_syscall __fsym_begin =
{
__fsym_begin_name,
__fsym_begin_desc,
NULL
};
#pragma section("FSymTab$z", read)
const char __fsym_end_name[] = "__end";
const char __fsym_end_desc[] = "end of finsh";
__declspec(allocate("FSymTab$z")) const struct finsh_syscall __fsym_end =
{
__fsym_end_name,
__fsym_end_desc,
NULL
};
#endif
/*
* @ingroup finsh
*
* This function will initialize finsh shell
*/
int finsh_system_init(void)
{
rt_err_t result = RT_EOK;
rt_thread_t tid;
#ifdef FINSH_USING_SYMTAB
#ifdef __ARMCC_VERSION /* ARM C Compiler */
extern const int FSymTab$$Base;
extern const int FSymTab$$Limit;
finsh_system_function_init(&FSymTab$$Base, &FSymTab$$Limit);
#elif defined (__ICCARM__) || defined(__ICCRX__) /* for IAR Compiler */
finsh_system_function_init(__section_begin("FSymTab"),
__section_end("FSymTab"));
#elif defined (__GNUC__) || defined(__TI_COMPILER_VERSION__) || defined(__TASKING__)
/* GNU GCC Compiler and TI CCS */
extern const int __fsymtab_start;
extern const int __fsymtab_end;
finsh_system_function_init(&__fsymtab_start, &__fsymtab_end);
#elif defined(__ADSPBLACKFIN__) /* for VisualDSP++ Compiler */
finsh_system_function_init(&__fsymtab_start, &__fsymtab_end);
#elif defined(_MSC_VER)
unsigned int *ptr_begin, *ptr_end;
if (shell)
{
rt_kprintf("finsh shell already init.\n");
return RT_EOK;
}
ptr_begin = (unsigned int *)&__fsym_begin;
ptr_begin += (sizeof(struct finsh_syscall) / sizeof(unsigned int));
while (*ptr_begin == 0) ptr_begin ++;
ptr_end = (unsigned int *) &__fsym_end;
ptr_end --;
while (*ptr_end == 0) ptr_end --;
finsh_system_function_init(ptr_begin, ptr_end);
#endif
#endif
#ifdef RT_USING_HEAP
/* create or set shell structure */
shell = (struct finsh_shell *)rt_calloc(1, sizeof(struct finsh_shell));
if (shell == RT_NULL)
{
rt_kprintf("no memory for shell\n");
return -1;
}
tid = rt_thread_create(FINSH_THREAD_NAME,
finsh_thread_entry, RT_NULL,
FINSH_THREAD_STACK_SIZE, FINSH_THREAD_PRIORITY, 10);
#else
shell = &_shell;
tid = &finsh_thread;
result = rt_thread_init(&finsh_thread,
FINSH_THREAD_NAME,
finsh_thread_entry, RT_NULL,
&finsh_thread_stack[0], sizeof(finsh_thread_stack),
FINSH_THREAD_PRIORITY, 10);
#endif /* RT_USING_HEAP */
rt_sem_init(&(shell->rx_sem), "shrx", 0, 0);
finsh_set_prompt_mode(1);
if (tid != NULL && result == RT_EOK)
rt_thread_startup(tid);
return 0;
}
INIT_APP_EXPORT(finsh_system_init);
#endif /* RT_USING_FINSH */
rt-thread/components/finsh/shell.h
+109
View File
@@ -0,0 +1,109 @@
/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2011-06-02 Bernard Add finsh_get_prompt function declaration
*/
#ifndef __SHELL_H__
#define __SHELL_H__
#include <rtthread.h>
#include "finsh.h"
#ifndef FINSH_THREAD_PRIORITY
#define FINSH_THREAD_PRIORITY 20
#endif
#ifndef FINSH_THREAD_STACK_SIZE
#define FINSH_THREAD_STACK_SIZE 2048
#endif
#ifndef FINSH_CMD_SIZE
#define FINSH_CMD_SIZE 80
#endif
#define FINSH_OPTION_ECHO 0x01
#define FINSH_PROMPT finsh_get_prompt()
const char *finsh_get_prompt(void);
int finsh_set_prompt(const char *prompt);
#ifdef FINSH_USING_HISTORY
#ifndef FINSH_HISTORY_LINES
#define FINSH_HISTORY_LINES 5
#endif
#endif
#ifdef FINSH_USING_AUTH
#ifndef FINSH_PASSWORD_MAX
#define FINSH_PASSWORD_MAX RT_NAME_MAX
#endif
#ifndef FINSH_PASSWORD_MIN
#define FINSH_PASSWORD_MIN 6
#endif
#ifndef FINSH_DEFAULT_PASSWORD
#define FINSH_DEFAULT_PASSWORD "rtthread"
#endif
#endif /* FINSH_USING_AUTH */
#ifndef FINSH_THREAD_NAME
#define FINSH_THREAD_NAME "tshell"
#endif
enum input_stat
{
WAIT_NORMAL,
WAIT_SPEC_KEY,
WAIT_FUNC_KEY,
};
struct finsh_shell
{
struct rt_semaphore rx_sem;
enum input_stat stat;
rt_uint8_t echo_mode: 1;
rt_uint8_t prompt_mode: 1;
#ifdef FINSH_USING_HISTORY
rt_uint16_t current_history;
rt_uint16_t history_count;
char cmd_history[FINSH_HISTORY_LINES][FINSH_CMD_SIZE];
#endif
char line[FINSH_CMD_SIZE + 1];
rt_uint16_t line_position;
rt_uint16_t line_curpos;
#if !defined(RT_USING_POSIX_STDIO) && defined(RT_USING_DEVICE)
rt_device_t device;
#endif
#ifdef FINSH_USING_AUTH
char password[FINSH_PASSWORD_MAX];
#endif
};
void finsh_set_echo(rt_uint32_t echo);
rt_uint32_t finsh_get_echo(void);
int finsh_system_init(void);
const char *finsh_get_device(void);
int finsh_getchar(void);
rt_uint32_t finsh_get_prompt_mode(void);
void finsh_set_prompt_mode(rt_uint32_t prompt_mode);
#ifdef FINSH_USING_AUTH
rt_err_t finsh_set_password(const char *password);
const char *finsh_get_password(void);
#endif
#ifdef RT_USING_HOOK
void finsh_thread_entry_sethook(void (*hook)(void));
#endif /* RT_USING_HOOK */
#endif