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https://github.com/gravitational/teleport.git
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Forrest
cbbb7aad24
* handle all direct-tcpip requests via single child per connection * implement uds helpers and rework forwarding
43 lines
1.4 KiB
Go
43 lines
1.4 KiB
Go
//go:build unix && !darwin
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/*
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* Teleport
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* Copyright (C) 2023 Gravitational, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package uds
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import (
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"syscall"
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"github.com/gravitational/trace"
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)
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// cloexecSocketpair returns a unix/local stream socketpair whose file
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// descriptors are flagged close-on-exec. This implementation creates the
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// socketpair directly in close-on-exec mode.
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func cloexecSocketpair(t SocketType) (uintptr, uintptr, error) {
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// SOCK_CLOEXEC on socketpair is supported since Linux 2.6.27 and go's
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// minimum requirement is 2.6.32 (FreeBSD supports it since FreeBSD 10 and
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// go 1.20+ requires FreeBSD 12)
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fds, err := syscall.Socketpair(syscall.AF_UNIX, t.proto()|syscall.SOCK_CLOEXEC, 0)
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if err != nil {
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return 0, 0, trace.Wrap(err)
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}
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return uintptr(fds[0]), uintptr(fds[1]), nil
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}
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