void change_dir(char *currdir, const char *dir)
{
char tempdir[1024];
if(dir == NULL)
{
printf("ERROR: Must supply a directory argument\n");
return;
}
if(strcmp(dir, "..") == 0)
{
up_dir(currdir);
return;
}
(void) snprintf(tempdir, sizeof(tempdir), "%s/%s", currdir, dir);
if(check_dir(tempdir))
{
strcpy(currdir, tempdir);
}
else
{
printf("ERROR: Invalid directory '%s'\n", tempdir);
}
}
static void cmd_cd(conn_item* item)
{
int len;
cmd_header* ch;
cmd_header cmd;
cmd_header* respond = &cmd;
char to[256];
assert(item && item->current_path && item->cmd_rd_buf);
ch = (cmd_header*)item->cmd_rd_buf;
// assert(cmd->cmd_type == CMD_CD_DIR);
respond->magic = htonl(MAGIC_NUM);
snprintf(to, item->cmd_rd_curr - sizeof(cmd_header) + 1,
"%s", item->cmd_rd_buf + sizeof(cmd_header));
if(strcmp(to, "..") == 0) {
if(strcmp(item->current_path, DEFAULT_FILE_PATH) == 0) {
respond->cmd_type = htonl(CMD_REQUEST_ERROR);
len = sprintf(item->data_wt_buf + sizeof(cmd_header), "already reach the root dir\n");
item->data_wt_curr = len + sizeof(cmd_header);
respond->package_len = htonl(item->data_wt_curr);
*(cmd_header*)item->data_wt_buf = cmd;
return;
}
up_dir(item->current_path);
cmd_ls(item);
return;
}
if(is_in_dir(item->current_path, to) == T_FTP_FAIL) {
respond->cmd_type = htonl(CMD_REQUEST_ERROR);
len = sprintf(item->data_wt_buf + sizeof(cmd_header), "%s is not a dir\n", to);
item->data_wt_curr = len + sizeof(cmd_header);
respond->package_len = htonl(item->data_wt_curr);
*((cmd_header*)item->data_wt_buf) = cmd;
return;
}
sprintf(item->current_path + strlen(item->current_path), "/%s", to);
cmd_ls(item);
}
