static int _msh_exec_cmd(char *cmd, rt_size_t length, int *retp)
{
int argc;
int cmd0_size = 0;
cmd_function_t cmd_func;
char *argv[RT_FINSH_ARG_MAX];
RT_ASSERT(cmd);
RT_ASSERT(retp);
/* find the size of first command */
while ((cmd[cmd0_size] != ' ' && cmd[cmd0_size] != '\t') && cmd0_size < length)
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 */
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;
}
int msh_exec(char* cmd, rt_size_t length)
{
int argc;
char *argv[RT_FINSH_ARG_MAX];
int cmd0_size = 0;
cmd_function_t cmd_func;
/* strim the beginning of command */
while(*cmd == ' ' || *cmd == '\t'){cmd++; length--;}
/* 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; /* no command found */
/* try to get built-in command */
cmd_func = msh_get_cmd(cmd, cmd0_size);
if (cmd_func == RT_NULL)
{
#ifdef RT_USING_MODULE
msh_exec_module(cmd, length);
#else
argv[0] = cmd;
while(*cmd != ' ')
{
if (*cmd == 0) break;
cmd++;
}
if (*cmd == ' ') *cmd = 0;
rt_kprintf("%s: command not found.\n", argv[0]);
#endif
return -1;
}
/* split arguments */
memset(argv, 0x00, sizeof(argv));
argc = msh_split(cmd, length, argv);
if (argc == 0) return -1;
/* exec this command */
return cmd_func(argc, argv);
}