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/*
* partition.cc - Implementation of the Partition class
* diskman, the Disk Manipulation library for
* Project Horizon
*
* Copyright (c) 2020 Adélie Linux and contributors. All rights reserved.
* This code is licensed under the AGPL 3.0 license, as noted in the
* LICENSE-code file in the root directory of this repository.
*
* SPDX-License-Identifier: AGPL-3.0-only
*/
#include "partition.hh"
#include "disk.hh"
#include <blkid/blkid.h>
#include <iostream>
#include <libfdisk/libfdisk.h>
#include <libudev.h>
#include <stdexcept>
namespace Horizon {
namespace DiskMan {
Partition::Partition(Disk &d, void *creation, int type) {
switch(type) {
case 0: { /* libfdisk */
struct fdisk_partition *part = static_cast<struct fdisk_partition *>(creation);
if(fdisk_partition_has_size(part)) {
this->_size = fdisk_partition_get_size(part) * d.sector_size();
} else {
this->_size = 0;
}
char *name = fdisk_partname(d.node().c_str(),
fdisk_partition_get_partno(part) + 1);
char *value;
value = blkid_get_tag_value(nullptr, "TYPE", name);
if(value != nullptr) {
this->_fs_type = std::string(value);
free(value);
}
value = blkid_get_tag_value(nullptr, "LABEL", name);
if(value != nullptr) {
this->_label = std::string(value);
free(value);
}
free(name);
break;
}
case 1: { /* udev */
struct udev_device *dev = static_cast<struct udev_device *>(creation);
const char *value;
value = udev_device_get_property_value(dev, "ID_FS_TYPE");
if(value != nullptr) this->_fs_type = std::string(value);
value = udev_device_get_property_value(dev, "ID_FS_LABEL");
if(value != nullptr) this->_label = std::string(value);
value = udev_device_get_property_value(dev, "ID_PART_ENTRY_SIZE");
if(value != nullptr) this->_size = strtoull(value, nullptr, 10) * 512;
break;
}
default:
throw std::invalid_argument{ "invalid type code" };
}
}
}
}
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