/*
* 返回父目录
*/
void excute_return_parent_directory(){
if(strcmp(currentDisk,"home")==0)
{
}
else if(strcmp(currentDirectory,"unknown")==0)
{
memset(currentDisk, 0, sizeof(char)*MAX_BUF_SIZE);
memcpy(currentDisk, "home",sizeof(char)*4);
}
else
{
currentDirId = get_parent_id(currentDirId);
if(strcmp(currentDirId,"0")==0)
{
memset(currentDirectory, 0, sizeof(char)*MAX_BUF_SIZE);
memcpy(currentDirectory, "unknown", sizeof(char)*7);
//当前ID？
}
else
{
currentDirectory = get_directory_name(currentDirId);
}
}
}
/*
* Recursive function that moves through the directory inodes to find the
* inumber of the desired file.
*/
int path_to_inode_number(struct unixfilesystem *fs, const char *pathname, int dir)
{
if(pathname[0] == 0) return 1;
else if (is_filename(pathname))
{
return name_to_inode_number(fs, pathname, dir);
}
else
{
char directoryName[MAX_NAME];
const char* newPath = get_directory_name(pathname, directoryName);
dir = name_to_inode_number (fs, directoryName, dir);
return path_to_inode_number(fs, newPath, dir);
}
}
