Esempio n. 1
0
/*
 * Gets an IFSFileEntry from a certain directory, and copies it
 * into dest
 */
static int ifs_get_file_entry(int parent, char* dir, IFSFileEntry* dest)
{
	bool has_sep = contains(dir, '/');
	int32_t* directory = (int32_t*)(initrd + ifs_get_address(parent));
	for(int i = 0; i < 256&& directory[i] != -1; i++)
	{
		int e = directory[i];
		IFSFileEntry* entry = (IFSFileEntry*)(initrd + ifs_get_address(e));

		if(has_sep && strncmp(dir, entry->file_name, strindx(dir, '/')) == 0)
		{
			return ifs_get_file_entry(entry->data_index, strrchr(dir, '/') + 1, dest);
		}
		else if (!has_sep)
		{
			if(strcmp(entry->file_name, dir) == 0)
			{
				memcpy(dest, entry, sizeof(IFSFileEntry));

				return 1;
			}
		}
	}
	return 0;
}
Esempio n. 2
0
/*
 * Returns the index to a directory table
 */
static int ifs_get_directory(struct device *dev, int parent, char *dir)
{
    if(dir[0] == 0 && parent == 0)
        return 0;
    
    bool has_sep = contains(dir, '/');
    
	int32_t directory[256];
    struct ifs_entry dentry;

    device_read(dev, &dentry, sizeof(struct ifs_entry), ifs_get_address(dev, parent));
    int dtable = dentry.data_index;
    device_read(dev, directory, 1024, ifs_get_address(dev, dtable));

    for (int i = 0; i < 256 && directory[i] != -1; i++) {
        int e = directory[i];
        struct ifs_entry entry;
        device_read(dev, &entry, sizeof(struct ifs_entry), ifs_get_address(dev, e));

        if (has_sep && strncmp(dir, entry.file_name, strindx(dir, '/')) == 0) {
            return ifs_get_directory(dev, e, strrchr(dir, '/') + 1);
        } else if (!has_sep) {
            if (strncmp(entry.file_name, dir, strlen(entry.file_name)) == 0) {
                return e;
            }
        }
    }
    return -1;
}
Esempio n. 3
0
/*
 * Returns the index to a directory table
 */
static int ifs_get_directory(int parent, char* dir)
{
	bool has_sep = contains(dir, '/');
	int32_t* directory = (int32_t*)(initrd + ifs_get_address(parent));
	for(int i = 0; i < 256 && directory[i] != -1; i++)
	{
		int e = directory[i];
		IFSFileEntry* entry = (IFSFileEntry*)(initrd + ifs_get_address(e));

		if(has_sep && strncmp(dir, entry->file_name, strindx(dir, '/')) == 0)
		{
			return ifs_get_directory(entry->data_index, strrchr(dir, '/') + 1);
		}
		else if (!has_sep)
		{
			if(strncmp(entry->file_name, dir, strlen(entry->file_name)) == 0)
			{
				return e;
			}
		}
	}
	return -1;
}