mirror of
https://github.com/SagerNet/sing-box.git
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30 lines
511 B
Go
30 lines
511 B
Go
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//go:build darwin || linux
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package libbox
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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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var stderrFile *os.File
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func RedirectStderr(path string) error {
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if stats, err := os.Stat(path); err == nil && stats.Size() > 0 {
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_ = os.Rename(path, path+".old")
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}
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outputFile, err := os.Create(path)
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if err != nil {
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return err
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}
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err = unix.Dup2(int(outputFile.Fd()), int(os.Stderr.Fd()))
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if err != nil {
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outputFile.Close()
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os.Remove(outputFile.Name())
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return err
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}
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stderrFile = outputFile
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return nil
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}
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