38 lines
936 B
Go
38 lines
936 B
Go
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// Copyright 2016 The Go 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 hurd || linux || netbsd || (js && wasm)
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package os
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import (
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"errors"
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"runtime"
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)
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func executable() (string, error) {
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var procfn string
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switch runtime.GOOS {
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default:
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return "", errors.New("Executable not implemented for " + runtime.GOOS)
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case "hurd", "linux", "android":
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procfn = "/proc/self/exe"
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case "netbsd":
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procfn = "/proc/curproc/exe"
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}
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path, err := Readlink(procfn)
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// When the executable has been deleted then Readlink returns a
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// path appended with " (deleted)".
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return stringsTrimSuffix(path, " (deleted)"), err
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}
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// stringsTrimSuffix is the same as strings.TrimSuffix.
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func stringsTrimSuffix(s, suffix string) string {
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if len(s) >= len(suffix) && s[len(s)-len(suffix):] == suffix {
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return s[:len(s)-len(suffix)]
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}
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return s
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}
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