mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-05-08 12:12:53 +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.
65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <Kernel/FileSystem/FileDescription.h>
|
|
#include <Kernel/Net/LocalSocket.h>
|
|
#include <Kernel/Process.h>
|
|
|
|
namespace Kernel {
|
|
|
|
KResultOr<FlatPtr> Process::sys$sendfd(int sockfd, int fd)
|
|
{
|
|
REQUIRE_PROMISE(sendfd);
|
|
auto socket_description = file_description(sockfd);
|
|
if (!socket_description)
|
|
return EBADF;
|
|
if (!socket_description->is_socket())
|
|
return ENOTSOCK;
|
|
auto& socket = *socket_description->socket();
|
|
if (!socket.is_local())
|
|
return EAFNOSUPPORT;
|
|
if (!socket.is_connected())
|
|
return ENOTCONN;
|
|
|
|
auto passing_descriptor = file_description(fd);
|
|
if (!passing_descriptor)
|
|
return EBADF;
|
|
|
|
auto& local_socket = static_cast<LocalSocket&>(socket);
|
|
return local_socket.sendfd(*socket_description, *passing_descriptor);
|
|
}
|
|
|
|
KResultOr<FlatPtr> Process::sys$recvfd(int sockfd, int options)
|
|
{
|
|
REQUIRE_PROMISE(recvfd);
|
|
auto socket_description = file_description(sockfd);
|
|
if (!socket_description)
|
|
return EBADF;
|
|
if (!socket_description->is_socket())
|
|
return ENOTSOCK;
|
|
auto& socket = *socket_description->socket();
|
|
if (!socket.is_local())
|
|
return EAFNOSUPPORT;
|
|
|
|
int new_fd = alloc_fd();
|
|
if (new_fd < 0)
|
|
return new_fd;
|
|
|
|
auto& local_socket = static_cast<LocalSocket&>(socket);
|
|
auto received_descriptor_or_error = local_socket.recvfd(*socket_description);
|
|
|
|
if (received_descriptor_or_error.is_error())
|
|
return received_descriptor_or_error.error();
|
|
|
|
u32 fd_flags = 0;
|
|
if (options & O_CLOEXEC)
|
|
fd_flags |= FD_CLOEXEC;
|
|
|
|
m_fds[new_fd].set(*received_descriptor_or_error.value(), fd_flags);
|
|
return new_fd;
|
|
}
|
|
|
|
}
|