mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-05-10 13:12:56 +00:00
2a78bf8596
The Process::Handler type has KResultOr<FlatPtr> as its return type. Using a different return type with an equally-sized template parameter sort of works but breaks once that condition is no longer true, e.g. for KResultOr<int> on x86_64. Ideally the syscall handlers would also take FlatPtrs as their args so we can get rid of the reinterpret_cast for the function pointer but I didn't quite feel like cleaning that up as well.
47 lines
1.3 KiB
C++
47 lines
1.3 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<FlatPtr> Process::sys$ttyname(int fd, Userspace<char*> buffer, size_t size)
|
|
{
|
|
REQUIRE_PROMISE(tty);
|
|
auto description = file_description(fd);
|
|
if (!description)
|
|
return EBADF;
|
|
if (!description->is_tty())
|
|
return ENOTTY;
|
|
auto tty_name = description->tty()->tty_name();
|
|
if (size < tty_name.length() + 1)
|
|
return ERANGE;
|
|
if (!copy_to_user(buffer, tty_name.characters(), tty_name.length() + 1))
|
|
return EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
KResultOr<FlatPtr> Process::sys$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;
|
|
}
|
|
|
|
}
|