2020-07-30 21:38:15 +00:00
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/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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2021-04-22 08:24:48 +00:00
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* SPDX-License-Identifier: BSD-2-Clause
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2020-07-30 21:38:15 +00:00
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*/
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2021-09-07 11:39:11 +00:00
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#include <Kernel/FileSystem/OpenFileDescription.h>
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2020-07-30 21:38:15 +00:00
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#include <Kernel/Process.h>
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#include <Kernel/TTY/MasterPTY.h>
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#include <Kernel/TTY/TTY.h>
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namespace Kernel {
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2021-11-07 23:51:39 +00:00
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ErrorOr<FlatPtr> Process::sys$ttyname(int fd, Userspace<char*> buffer, size_t size)
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2020-07-30 21:38:15 +00:00
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{
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2021-07-18 18:20:12 +00:00
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
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2020-07-30 21:38:15 +00:00
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REQUIRE_PROMISE(tty);
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2021-09-07 11:41:27 +00:00
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auto description = TRY(fds().open_file_description(fd));
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2020-07-30 21:38:15 +00:00
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if (!description->is_tty())
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2021-03-01 12:49:16 +00:00
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return ENOTTY;
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2021-11-01 05:47:19 +00:00
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auto& tty_name = description->tty()->tty_name();
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2020-08-04 14:27:52 +00:00
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if (size < tty_name.length() + 1)
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2021-03-01 12:49:16 +00:00
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return ERANGE;
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2021-11-07 23:51:39 +00:00
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TRY(copy_to_user(buffer, tty_name.characters(), tty_name.length() + 1));
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return 0;
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2020-07-30 21:38:15 +00:00
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}
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2021-11-07 23:51:39 +00:00
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ErrorOr<FlatPtr> Process::sys$ptsname(int fd, Userspace<char*> buffer, size_t size)
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2020-07-30 21:38:15 +00:00
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{
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2021-07-18 18:20:12 +00:00
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
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2020-07-30 21:38:15 +00:00
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REQUIRE_PROMISE(tty);
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2021-09-07 11:41:27 +00:00
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auto description = TRY(fds().open_file_description(fd));
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2020-07-30 21:38:15 +00:00
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auto* master_pty = description->master_pty();
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if (!master_pty)
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2021-03-01 12:49:16 +00:00
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return ENOTTY;
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2021-11-01 05:47:19 +00:00
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auto& pts_name = master_pty->pts_name();
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2020-08-04 14:27:52 +00:00
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if (size < pts_name.length() + 1)
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2021-03-01 12:49:16 +00:00
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return ERANGE;
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2021-11-07 23:51:39 +00:00
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TRY(copy_to_user(buffer, pts_name.characters(), pts_name.length() + 1));
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return 0;
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2020-07-30 21:38:15 +00:00
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}
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}
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