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44 lines
1.0 KiB
Go
44 lines
1.0 KiB
Go
//go:build zos
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// +build zos
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/*
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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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"os"
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)
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// openpt allocates a new pseudo-terminal by opening the first available /dev/ptypXX device
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func openpt() (*os.File, error) {
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var f *os.File
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var err error
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for i := 0; ; i++ {
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ptyp := fmt.Sprintf("/dev/ptyp%04d", i)
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f, err = os.OpenFile(ptyp, os.O_RDWR, 0600)
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if err == nil {
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break
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}
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if os.IsNotExist(err) {
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return nil, err
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}
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// else probably Resource Busy
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}
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return f, nil
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}
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