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Update msh.c 

fix msh_exec(char* cmd, rt_size_t length) bug
This commit is contained in:
roamboy 2014-01-13 15:52:23 +08:00
parent 97508eb48e
commit 849130da2c
1 changed files with 14 additions and 1 deletions
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13
components/finsh/msh.c
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@ -257,16 +257,29 @@ int msh_exec(char* cmd, rt_size_t length)
int cmd0_size = 0; int cmd0_size = 0;
cmd_function_t cmd_func; cmd_function_t cmd_func;
while(*cmd == ' ')
{
cmd++;
length--;
}
while ((cmd[cmd0_size] != ' ' && cmd[cmd0_size] != '\t') && cmd0_size < length) while ((cmd[cmd0_size] != ' ' && cmd[cmd0_size] != '\t') && cmd0_size < length)
cmd0_size ++; cmd0_size ++;
/* try to get built-in command */ /* try to get built-in command */
if (cmd0_size == 0) return -1;
cmd_func = msh_get_cmd(cmd, cmd0_size); cmd_func = msh_get_cmd(cmd, cmd0_size);
if (cmd_func == RT_NULL) if (cmd_func == RT_NULL)
{ {
#ifdef RT_USING_MODULE #ifdef RT_USING_MODULE
msh_exec_module(cmd, length); msh_exec_module(cmd, length);
#else #else
argv[0] = cmd;
while(*cmd != ' ')
{
if (*cmd == 0) break;
cmd++;
}
if (*cmd == ' ') *cmd = 0;
rt_kprintf("%s: command not found.\n", argv[0]); rt_kprintf("%s: command not found.\n", argv[0]);
#endif #endif
return -1; return -1;