diff options
Diffstat (limited to 'src/pkg/os/env_plan9.go')
-rw-r--r-- | src/pkg/os/env_plan9.go | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/src/pkg/os/env_plan9.go b/src/pkg/os/env_plan9.go deleted file mode 100644 index 1fed89f92..000000000 --- a/src/pkg/os/env_plan9.go +++ /dev/null @@ -1,96 +0,0 @@ -// Copyright 2011 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Plan 9 environment variables. - -package os - -import "syscall" - -// ENOENV is the Error indicating that an environment variable does not exist. -var ENOENV = NewError("no such environment variable") - -// Getenverror retrieves the value of the environment variable named by the key. -// It returns the value and an error, if any. -func Getenverror(key string) (value string, err Error) { - if len(key) == 0 { - return "", EINVAL - } - f, e := Open("/env/" + key) - if iserror(e) { - return "", ENOENV - } - defer f.Close() - - l, _ := f.Seek(0, 2) - f.Seek(0, 0) - buf := make([]byte, l) - n, e := f.Read(buf) - if iserror(e) { - return "", ENOENV - } - - if n > 0 && buf[n-1] == 0 { - buf = buf[:n-1] - } - return string(buf), nil -} - -// Getenv retrieves the value of the environment variable named by the key. -// It returns the value, which will be empty if the variable is not present. -func Getenv(key string) string { - v, _ := Getenverror(key) - return v -} - -// Setenv sets the value of the environment variable named by the key. -// It returns an Error, if any. -func Setenv(key, value string) Error { - if len(key) == 0 { - return EINVAL - } - - f, e := Create("/env/" + key) - if iserror(e) { - return e - } - defer f.Close() - - _, e = f.Write([]byte(value)) - return nil -} - -// Clearenv deletes all environment variables. -func Clearenv() { - syscall.RawSyscall(syscall.SYS_RFORK, syscall.RFCENVG, 0, 0) -} - -// Environ returns an array of strings representing the environment, -// in the form "key=value". -func Environ() []string { - env := make([]string, 0, 100) - - f, e := Open("/env") - if iserror(e) { - panic(e) - } - defer f.Close() - - names, e := f.Readdirnames(-1) - if iserror(e) { - panic(e) - } - - for _, k := range names { - if v, e := Getenverror(k); !iserror(e) { - env = append(env, k+"="+v) - } - } - return env[0:len(env)] -} - -// TempDir returns the default directory to use for temporary files. -func TempDir() string { - return "/tmp" -} |