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- // Copyright 2014 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include "sandbox/linux/syscall_broker/broker_channel.h"
- #include <sys/socket.h>
- #include <sys/types.h>
- #include "base/check.h"
- namespace sandbox {
- namespace syscall_broker {
- // static
- void BrokerChannel::CreatePair(EndPoint* reader, EndPoint* writer) {
- DCHECK(reader);
- DCHECK(writer);
- int socket_pair[2];
- // Use SOCK_SEQPACKET, to preserve message boundaries but we also want to be
- // notified (recvmsg should return and not block) when the connection has
- // been broken which could mean that the other end has been closed.
- PCHECK(0 == socketpair(AF_UNIX, SOCK_SEQPACKET, 0, socket_pair));
- reader->reset(socket_pair[0]);
- PCHECK(0 == shutdown(reader->get(), SHUT_WR));
- writer->reset(socket_pair[1]);
- PCHECK(0 == shutdown(writer->get(), SHUT_RD));
- }
- } // namespace syscall_broker
- } // namespace sandbox
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