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moby--moby/vendor/github.com/containerd/console/pty_freebsd_cgo.go
Sebastiaan van Stijn 948e201c1c
vendor: github.com/containerd/console v1.0.2
Contains fix for s390x and support for FreeBSD

full diff: https://github.com/containerd/console/compare/v1.0.1...v1.0.2

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2021-04-12 15:31:21 +02:00

45 lines
1.1 KiB
Go

// +build freebsd,cgo
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package console
import (
"fmt"
"os"
)
/*
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
*/
import "C"
// openpt allocates a new pseudo-terminal and establishes a connection with its
// control device.
func openpt() (*os.File, error) {
fd, err := C.posix_openpt(C.O_RDWR)
if err != nil {
return nil, fmt.Errorf("posix_openpt: %w", err)
}
if _, err := C.grantpt(fd); err != nil {
C.close(fd)
return nil, fmt.Errorf("grantpt: %w", err)
}
return os.NewFile(uintptr(fd), ""), nil
}