mirror of https://github.com/k3s-io/k3s
42 lines
1.1 KiB
Go
42 lines
1.1 KiB
Go
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/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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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 redirfd
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import (
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"fmt"
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"strconv"
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)
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// FileDescriptor mirrors unix-specific indexes for cross-platform use
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type FileDescriptor int
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const (
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InvalidFD FileDescriptor = -1
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Stdin FileDescriptor = 0
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Stdout FileDescriptor = 1
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Stderr FileDescriptor = 2
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)
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// ParseFileDescriptor parses a string formatted file descriptor
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func ParseFileDescriptor(fdstr string) (FileDescriptor, error) {
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fdint, err := strconv.Atoi(fdstr)
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if err != nil {
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return InvalidFD, fmt.Errorf("file descriptor must be an integer: %q", fdstr)
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}
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return FileDescriptor(fdint), nil
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}
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