ladybird/Userland/Utilities/blockdev.cpp

49 lines
1.3 KiB
C++

/*
* Copyright (c) 2021, David Isaksson <davidisaksson93@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/ArgsParser.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <fcntl.h>
#include <sys/ioctl.h>
static ErrorOr<void> fetch_ioctl(int fd, int request)
{
u64 value;
TRY(Core::System::ioctl(fd, request, &value));
outln("{}", value);
return {};
}
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
TRY(Core::System::unveil("/dev", "r"));
TRY(Core::System::unveil(nullptr, nullptr));
TRY(Core::System::pledge("stdio rpath"));
StringView device;
bool flag_get_disk_size = false;
bool flag_get_block_size = false;
Core::ArgsParser args_parser;
args_parser.set_general_help("Call block device ioctls");
args_parser.add_option(flag_get_disk_size, "Get size in bytes", "size", 's');
args_parser.add_option(flag_get_block_size, "Get block size in bytes", "block-size", 'b');
args_parser.add_positional_argument(device, "Device to query", "device");
args_parser.parse(arguments);
int fd = TRY(Core::System::open(device, O_RDONLY));
if (flag_get_disk_size) {
TRY(fetch_ioctl(fd, STORAGE_DEVICE_GET_SIZE));
}
if (flag_get_block_size) {
TRY(fetch_ioctl(fd, STORAGE_DEVICE_GET_BLOCK_SIZE));
}
return 0;
}