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79fa9765ca
We now use AK::Error and AK::ErrorOr<T> in both kernel and userspace! This was a slightly tedious refactoring that took a long time, so it's not unlikely that some bugs crept in. Nevertheless, it does pass basic functionality testing, and it's just real nice to finally see the same pattern in all contexts. :^)
57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <Kernel/FileSystem/OpenFileDescription.h>
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#include <Kernel/Net/LocalSocket.h>
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#include <Kernel/Process.h>
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namespace Kernel {
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ErrorOr<FlatPtr> Process::sys$sendfd(int sockfd, int fd)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
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REQUIRE_PROMISE(sendfd);
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auto socket_description = TRY(fds().open_file_description(sockfd));
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if (!socket_description->is_socket())
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return ENOTSOCK;
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auto& socket = *socket_description->socket();
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if (!socket.is_local())
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return EAFNOSUPPORT;
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if (!socket.is_connected())
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return ENOTCONN;
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auto passing_description = TRY(fds().open_file_description(fd));
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auto& local_socket = static_cast<LocalSocket&>(socket);
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TRY(local_socket.sendfd(*socket_description, move(passing_description)));
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return 0;
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}
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ErrorOr<FlatPtr> Process::sys$recvfd(int sockfd, int options)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
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REQUIRE_PROMISE(recvfd);
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auto socket_description = TRY(fds().open_file_description(sockfd));
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if (!socket_description->is_socket())
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return ENOTSOCK;
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auto& socket = *socket_description->socket();
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if (!socket.is_local())
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return EAFNOSUPPORT;
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auto fd_allocation = TRY(m_fds.allocate());
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auto& local_socket = static_cast<LocalSocket&>(socket);
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auto received_description = TRY(local_socket.recvfd(*socket_description));
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u32 fd_flags = 0;
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if (options & O_CLOEXEC)
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fd_flags |= FD_CLOEXEC;
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m_fds[fd_allocation.fd].set(move(received_description), fd_flags);
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return fd_allocation.fd;
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}
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}
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