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da8def8e13
The //go:build syntax was introduced in Go 1.17: https://go.dev/doc/go1.17#build-lines gofmt has kept the +build and go:build lines in sync since then, but enough time has passed. Time to remove them. Done with: perl -i -npe 's,^// \+build.*\n,,' $(git grep -l -F '+build') Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
32 lines
581 B
Go
32 lines
581 B
Go
// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build !windows && !js
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package filch
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import (
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"os"
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"golang.org/x/sys/unix"
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)
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func saveStderr() (*os.File, error) {
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fd, err := unix.Dup(stderrFD)
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if err != nil {
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return nil, err
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}
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return os.NewFile(uintptr(fd), "stderr"), nil
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}
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func unsaveStderr(f *os.File) error {
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err := dup2Stderr(f)
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f.Close()
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return err
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}
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func dup2Stderr(f *os.File) error {
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return unix.Dup2(int(f.Fd()), stderrFD)
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}
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