mirror of
https://github.com/golang/go
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29 lines
614 B
Go
29 lines
614 B
Go
// Copyright 2009 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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// Environment variables.
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// Setenv doesn't exist yet: don't have the run-time hooks yet
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package os
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import os "os"
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export var (
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ENOENV = NewError("no such environment variable");
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)
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export func Getenv(s string) (v string, err *Error) {
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n := len(s);
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if n == 0 {
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return "", EINVAL
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}
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for i := 0; i < sys.envc(); i++ {
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e := sys.envv(i);
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if len(e) > n && e[n] == '=' && e[0 : n] == s {
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return e[n+1 : len(e)], nil
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}
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}
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return "", ENOENV
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}
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