C语言典型代码---执行shell命令并判断是否成功

C语言调用shell命令，并判断执行是否成功

int smart_system(char* cmd ,int type)
{
pid_t status;
FILE *fp;

char cIndex[CMD_NOR_LEN] = {0};

memset(cIndex, 0, CMD_NOR_LEN);

if(type == RES_RM)
{
sprintf(cIndex, "%s >/dev/null 2>&1",cmd);
}
else if(type == RES_DTRM)
{
sprintf(cIndex, "%s 2>/dev/null",cmd);
}

status = system(cIndex);

if (-1 == status)
{
smart_log(ERROR,"CMD ERROR-1",cIndex);
return RES_CMD_FAIL;
}
else
{
if (WIFEXITED(status))
{
if (0 == WEXITSTATUS(status))
{
return RES_CMD_SUCCESS;
}
else
{
//sprintf(pores,"run shell script fail, script exit code: %d\n",WEXITSTATUS(status));
smart_log(ERROR,"CMD ERROR -2",cIndex);
return RES_CMD_FAIL;
}
}
else
{
//sprintf(pores,"exit status = [%d]\n", WEXITSTATUS(status));
smart_log(ERROR,"CMD ERROR-3",cIndex);
return RES_CMD_FAIL;
}
}
}