char*
creat_dir_Command(char *command, int n_paths)
{
int i;
char *dir;
int ok = 0;
while(!ok)
{
if(access(cat_command(command, array_paths[i]), X_OK) == 0)
{
dir = cat_command(command, array_paths[i]);
ok = 1;
}else{
i++;
}
}
return dir;
}
char*
ok_command(char *command)
{
char dir_1[] = "/bin/";
char dir_2[] = "/usr/bin/";
char dir_3[] = "/usr/local/bin/";
if (access(cat_command(command, dir_1), X_OK)==0){
return cat_command(command, dir_1);
}else if(access(cat_command(command, dir_2), X_OK)==0){
return cat_command(command, dir_2);
}else if (access(cat_command(command, dir_3), X_OK)==0){
return cat_command(command, dir_3);
}else {
return NULL;
}
}
static void
console_task(layer_t* layer, unsigned int mem_total)
{
#define INPUT_BEG_POS_X (24)
#define INPUT_BEG_POS_Y (28)
#define PROMPT_CHAR ("> ")
#define PROMPT_LEN (2)
timer_t* timer;
task_t* task = task_now();
int data, fifobuf[128];
int cursor_x = INPUT_BEG_POS_X, cursor_y = INPUT_BEG_POS_Y;
int cursor_c = -1;
char buf[32], cmdline[32];
mem_mgr_t* memmgr = (mem_mgr_t*)MEMMGR_ADDR;
fifo_init(&task->fifo, fifobuf, 128, task);
timer = timer_alloc();
timer_init(timer, &task->fifo, 1);
timer_settimer(timer, 50);
/* display the prompt of console window */
drawstring_and_refresh(layer, 8, 28,
COLOR8_FFFFFF, COLOR8_000000, PROMPT_CHAR, PROMPT_LEN);
for ( ; ; ) {
io_cli();
if (0 == fifo_size(&task->fifo)) {
task_sleep(task);
io_sti();
}
else {
data = fifo_get(&task->fifo);
io_sti();
if (data <= 1) {
/* timer for cursor */
if (0 != data) {
timer_init(timer, &task->fifo, 0);
if (cursor_c >= 0)
cursor_c = COLOR8_FFFFFF;
}
else {
timer_init(timer, &task->fifo, 1);
if (cursor_c >= 0)
cursor_c = COLOR8_000000;
}
timer_settimer(timer, 50);
}
if (2 == data) /* cursor ON */
cursor_c = COLOR8_FFFFFF;
if (3 == data) { /* cursor OFF */
fill_box8(layer->buf, layer->w_size,
COLOR8_000000, cursor_x, 28, cursor_x + 7, cursor_y + 15);
cursor_c = -1;
}
if (256 <= data && data <= 511) {
/* keyboard data */
if ((8 + 256) == data) {
/* backspace */
if (cursor_x > INPUT_BEG_POS_X) {
/* erase the cursor and move forward one character */
drawstring_and_refresh(layer, cursor_x, cursor_y,
COLOR8_FFFFFF, COLOR8_000000, " ", 1);
cursor_x -= 8;
}
}
else if ((10 + 256) == data) {
/* Enter Key */
/* erase cursor by space */
drawstring_and_refresh(layer, cursor_x, cursor_y,
COLOR8_FFFFFF, COLOR8_000000, " ", 1);
cmdline[cursor_x / 8 - 3] = 0;
cursor_y = console_newline(cursor_y, layer);
/* execute command */
if (0 == strcmp("mem", cmdline)) {
/* check memory command */
cursor_y = memory_command(layer, memmgr, mem_total, cursor_y);
}
else if (0 == strcmp("clear", cmdline)) {
/* clear command */
cursor_y = clear_command(layer);
}
else if (0 == strcmp("ls", cmdline)) {
/* ls(dir) command */
cursor_y = list_command(layer, cursor_y);
}
else if (0 == strncmp("cat ", cmdline, 4)) {
/* cat command */
cursor_y = cat_command(layer, cursor_x, cursor_y, cmdline);
}
else if (0 != cmdline[0]) {
/* neither command nor null string */
drawstring_and_refresh(layer, 8, cursor_y,
COLOR8_FFFFFF, COLOR8_000000, "Bad Command.", 12);
cursor_y = console_newline(cursor_y, layer);
cursor_y = console_newline(cursor_y, layer);
}
/* show prompt */
drawstring_and_refresh(layer, 8, cursor_y,
COLOR8_FFFFFF, COLOR8_000000, PROMPT_CHAR, PROMPT_LEN);
cursor_x = INPUT_BEG_POS_X;
}
else {
/* general character */
if (cursor_x < 240) {
/* display one character and move backward one character */
buf[0] = data - 256;
buf[1] = 0;
cmdline[cursor_x / 8 - 3] = data - 256;
drawstring_and_refresh(layer, cursor_x, cursor_y,
COLOR8_FFFFFF, COLOR8_000000, buf, 1);
cursor_x += 8;
}
}
}
/* show the cursor again */
if (cursor_c >= 0) {
fill_box8(layer->buf, layer->w_size,
cursor_c, cursor_x, cursor_y, cursor_x + 7, cursor_y + 15);
}
layers_refresh(layer, cursor_x, cursor_y,
cursor_x + 8, cursor_y + 16);
}
}
}
