mirror of
https://github.com/SerenityOS/serenity
synced 2024-07-22 02:26:11 +00:00
774f328783
This also removes DirIterator::error_string(), since the same strerror() string will be included when you print the Error itself. Except in `ls` which is still using fprintf() for now.
86 lines
3.3 KiB
C++
86 lines
3.3 KiB
C++
/*
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* Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/DeprecatedString.h>
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#include <AK/Hex.h>
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#include <AK/StringView.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/DirIterator.h>
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#include <LibCore/File.h>
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#include <LibCore/System.h>
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#include <LibMain/Main.h>
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static constexpr StringView format_row = "{:10s}\t{:10s}\t{:10s}\t{:10s}"sv;
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ErrorOr<int> serenity_main(Main::Arguments arguments)
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{
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TRY(Core::System::pledge("stdio rpath"));
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TRY(Core::System::unveil("/sys/devices/storage", "r"));
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TRY(Core::System::unveil(nullptr, nullptr));
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Core::ArgsParser args_parser;
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args_parser.set_general_help("List Storage (Block) devices.");
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args_parser.parse(arguments);
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Core::DirIterator di("/sys/devices/storage/", Core::DirIterator::SkipParentAndBaseDir);
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if (di.has_error()) {
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auto error = di.error();
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warnln("Failed to open /sys/devices/storage - {}", error);
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return error;
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}
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outln(format_row, "LUN"sv, "Command set"sv, "Block Size"sv, "Last LBA"sv);
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TRY(Core::System::pledge("stdio rpath"));
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while (di.has_next()) {
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auto dir = di.next_path();
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auto command_set_filename = DeprecatedString::formatted("/sys/devices/storage/{}/command_set", dir);
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auto command_set_file = Core::File::open(command_set_filename, Core::File::OpenMode::Read);
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if (command_set_file.is_error()) {
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dbgln("Error: Could not open {}: {}", command_set_filename, command_set_file.error());
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continue;
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}
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auto last_lba_filename = DeprecatedString::formatted("/sys/devices/storage/{}/last_lba", dir);
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auto last_lba_file = Core::File::open(last_lba_filename, Core::File::OpenMode::Read);
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if (last_lba_file.is_error()) {
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dbgln("Error: Could not open {}: {}", last_lba_filename, last_lba_file.error());
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continue;
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}
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auto sector_size_filename = DeprecatedString::formatted("/sys/devices/storage/{}/sector_size", dir);
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auto sector_size_file = Core::File::open(sector_size_filename, Core::File::OpenMode::Read);
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if (sector_size_file.is_error()) {
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dbgln("Error: Could not open {}: {}", sector_size_filename, sector_size_file.error());
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continue;
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}
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auto maybe_command_set = command_set_file.value()->read_until_eof();
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if (maybe_command_set.is_error()) {
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dbgln("Error: Could not read {}: {}", command_set_filename, maybe_command_set.error());
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continue;
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}
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DeprecatedString command_set = StringView(maybe_command_set.value().bytes());
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auto maybe_last_lba = last_lba_file.value()->read_until_eof();
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if (maybe_last_lba.is_error()) {
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dbgln("Error: Could not read {}: {}", last_lba_filename, maybe_last_lba.error());
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continue;
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}
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DeprecatedString last_lba = StringView(maybe_last_lba.value().bytes());
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auto maybe_sector_size = sector_size_file.value()->read_until_eof();
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if (maybe_sector_size.is_error()) {
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dbgln("Error: Could not read {}: {}", sector_size_filename, maybe_sector_size.error());
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continue;
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}
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DeprecatedString sector_size = StringView(maybe_sector_size.value().bytes());
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outln(format_row, dir, command_set, sector_size, last_lba);
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}
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return 0;
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}
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