mirror of
https://github.com/opencontainers/runc.git
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8b0e7511cf
Bumps [github.com/containerd/console](https://github.com/containerd/console) from 1.0.4 to 1.0.5. - [Release notes](https://github.com/containerd/console/releases) - [Commits](https://github.com/containerd/console/compare/v1.0.4...v1.0.5) --- updated-dependencies: - dependency-name: github.com/containerd/console dependency-version: 1.0.5 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>
51 lines
1.5 KiB
Go
51 lines
1.5 KiB
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package console
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import (
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"fmt"
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"unsafe"
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"golang.org/x/sys/unix"
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)
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const (
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cmdTcGet = unix.TCGETS
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cmdTcSet = unix.TCSETS
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)
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// unlockpt unlocks the slave pseudoterminal device corresponding to the master pseudoterminal referred to by f.
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// unlockpt should be called before opening the slave side of a pty.
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func unlockpt(f File) error {
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var u int32
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// XXX do not use unix.IoctlSetPointerInt here, see commit dbd69c59b81.
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if _, _, err := unix.Syscall(unix.SYS_IOCTL, f.Fd(), unix.TIOCSPTLCK, uintptr(unsafe.Pointer(&u))); err != 0 {
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return err
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}
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return nil
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}
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// ptsname retrieves the name of the first available pts for the given master.
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func ptsname(f File) (string, error) {
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var u uint32
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// XXX do not use unix.IoctlGetInt here, see commit dbd69c59b81.
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if _, _, err := unix.Syscall(unix.SYS_IOCTL, f.Fd(), unix.TIOCGPTN, uintptr(unsafe.Pointer(&u))); err != 0 {
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return "", err
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}
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return fmt.Sprintf("/dev/pts/%d", u), nil
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}
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