ladybird/Kernel/Syscalls/ttyname.cpp
Brian Gianforcaro 1682f0b760 Everything: Move to SPDX license identifiers in all files.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.

See: https://spdx.dev/resources/use/#identifiers

This was done with the `ambr` search and replace tool.

 ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
2021-04-22 11:22:27 +02:00

47 lines
1.2 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/FileSystem/FileDescription.h>
#include <Kernel/Process.h>
#include <Kernel/TTY/MasterPTY.h>
#include <Kernel/TTY/TTY.h>
namespace Kernel {
KResultOr<int> Process::sys$ttyname(int fd, Userspace<char*> buffer, size_t size)
{
REQUIRE_PROMISE(tty);
auto description = file_description(fd);
if (!description)
return EBADF;
if (!description->is_tty())
return ENOTTY;
auto tty_name = description->tty()->tty_name();
if (size < tty_name.length() + 1)
return ERANGE;
if (!copy_to_user(buffer, tty_name.characters(), tty_name.length() + 1))
return EFAULT;
return 0;
}
KResultOr<int> Process::sys$ptsname(int fd, Userspace<char*> buffer, size_t size)
{
REQUIRE_PROMISE(tty);
auto description = file_description(fd);
if (!description)
return EBADF;
auto* master_pty = description->master_pty();
if (!master_pty)
return ENOTTY;
auto pts_name = master_pty->pts_name();
if (size < pts_name.length() + 1)
return ERANGE;
if (!copy_to_user(buffer, pts_name.characters(), pts_name.length() + 1))
return EFAULT;
return 0;
}
}