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Diffstat (limited to 'vendor/github.com/hashicorp/go-sockaddr/cmd/sockaddr/vendor/github.com/bgentry/speakeasy')
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diff --git a/vendor/github.com/hashicorp/go-sockaddr/cmd/sockaddr/vendor/github.com/bgentry/speakeasy/LICENSE_WINDOWS b/vendor/github.com/hashicorp/go-sockaddr/cmd/sockaddr/vendor/github.com/bgentry/speakeasy/LICENSE_WINDOWS new file mode 100644 index 000000000..ff177f612 --- /dev/null +++ b/vendor/github.com/hashicorp/go-sockaddr/cmd/sockaddr/vendor/github.com/bgentry/speakeasy/LICENSE_WINDOWS @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + +Copyright [2013] [the CloudFoundry Authors] + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. diff --git a/vendor/github.com/hashicorp/go-sockaddr/cmd/sockaddr/vendor/github.com/bgentry/speakeasy/Readme.md b/vendor/github.com/hashicorp/go-sockaddr/cmd/sockaddr/vendor/github.com/bgentry/speakeasy/Readme.md new file mode 100644 index 000000000..fceda7518 --- /dev/null +++ b/vendor/github.com/hashicorp/go-sockaddr/cmd/sockaddr/vendor/github.com/bgentry/speakeasy/Readme.md @@ -0,0 +1,30 @@ +# Speakeasy + +This package provides cross-platform Go (#golang) helpers for taking user input +from the terminal while not echoing the input back (similar to `getpasswd`). The +package uses syscalls to avoid any dependence on cgo, and is therefore +compatible with cross-compiling. + +[![GoDoc](https://godoc.org/github.com/bgentry/speakeasy?status.png)][godoc] + +## Unicode + +Multi-byte unicode characters work successfully on Mac OS X. On Windows, +however, this may be problematic (as is UTF in general on Windows). Other +platforms have not been tested. + +## License + +The code herein was not written by me, but was compiled from two separate open +source packages. Unix portions were imported from [gopass][gopass], while +Windows portions were imported from the [CloudFoundry Go CLI][cf-cli]'s +[Windows terminal helpers][cf-ui-windows]. + +The [license for the windows portion](./LICENSE_WINDOWS) has been copied exactly +from the source (though I attempted to fill in the correct owner in the +boilerplate copyright notice). + +[cf-cli]: https://github.com/cloudfoundry/cli "CloudFoundry Go CLI" +[cf-ui-windows]: https://github.com/cloudfoundry/cli/blob/master/src/cf/terminal/ui_windows.go "CloudFoundry Go CLI Windows input helpers" +[godoc]: https://godoc.org/github.com/bgentry/speakeasy "speakeasy on Godoc.org" +[gopass]: https://code.google.com/p/gopass "gopass" diff --git a/vendor/github.com/hashicorp/go-sockaddr/cmd/sockaddr/vendor/github.com/bgentry/speakeasy/speakeasy.go b/vendor/github.com/hashicorp/go-sockaddr/cmd/sockaddr/vendor/github.com/bgentry/speakeasy/speakeasy.go new file mode 100644 index 000000000..71c1dd1b9 --- /dev/null +++ b/vendor/github.com/hashicorp/go-sockaddr/cmd/sockaddr/vendor/github.com/bgentry/speakeasy/speakeasy.go @@ -0,0 +1,49 @@ +package speakeasy + +import ( + "fmt" + "io" + "os" + "strings" +) + +// Ask the user to enter a password with input hidden. prompt is a string to +// display before the user's input. Returns the provided password, or an error +// if the command failed. +func Ask(prompt string) (password string, err error) { + return FAsk(os.Stdout, prompt) +} + +// FAsk is the same as Ask, except it is possible to specify the file to write +// the prompt to. If 'nil' is passed as the writer, no prompt will be written. +func FAsk(wr io.Writer, prompt string) (password string, err error) { + if wr != nil && prompt != "" { + fmt.Fprint(wr, prompt) // Display the prompt. + } + password, err = getPassword() + + // Carriage return after the user input. + if wr != nil { + fmt.Fprintln(wr, "") + } + return +} + +func readline() (value string, err error) { + var valb []byte + var n int + b := make([]byte, 1) + for { + // read one byte at a time so we don't accidentally read extra bytes + n, err = os.Stdin.Read(b) + if err != nil && err != io.EOF { + return "", err + } + if n == 0 || b[0] == '\n' { + break + } + valb = append(valb, b[0]) + } + + return strings.TrimSuffix(string(valb), "\r"), nil +} diff --git a/vendor/github.com/hashicorp/go-sockaddr/cmd/sockaddr/vendor/github.com/bgentry/speakeasy/speakeasy_unix.go b/vendor/github.com/hashicorp/go-sockaddr/cmd/sockaddr/vendor/github.com/bgentry/speakeasy/speakeasy_unix.go new file mode 100644 index 000000000..d99fda191 --- /dev/null +++ b/vendor/github.com/hashicorp/go-sockaddr/cmd/sockaddr/vendor/github.com/bgentry/speakeasy/speakeasy_unix.go @@ -0,0 +1,93 @@ +// based on https://code.google.com/p/gopass +// Author: johnsiilver@gmail.com (John Doak) +// +// Original code is based on code by RogerV in the golang-nuts thread: +// https://groups.google.com/group/golang-nuts/browse_thread/thread/40cc41e9d9fc9247 + +// +build darwin dragonfly freebsd linux netbsd openbsd solaris + +package speakeasy + +import ( + "fmt" + "os" + "os/signal" + "strings" + "syscall" +) + +const sttyArg0 = "/bin/stty" + +var ( + sttyArgvEOff = []string{"stty", "-echo"} + sttyArgvEOn = []string{"stty", "echo"} +) + +// getPassword gets input hidden from the terminal from a user. This is +// accomplished by turning off terminal echo, reading input from the user and +// finally turning on terminal echo. +func getPassword() (password string, err error) { + sig := make(chan os.Signal, 10) + brk := make(chan bool) + + // File descriptors for stdin, stdout, and stderr. + fd := []uintptr{os.Stdin.Fd(), os.Stdout.Fd(), os.Stderr.Fd()} + + // Setup notifications of termination signals to channel sig, create a process to + // watch for these signals so we can turn back on echo if need be. + signal.Notify(sig, syscall.SIGHUP, syscall.SIGINT, syscall.SIGKILL, syscall.SIGQUIT, + syscall.SIGTERM) + go catchSignal(fd, sig, brk) + + // Turn off the terminal echo. + pid, err := echoOff(fd) + if err != nil { + return "", err + } + + // Turn on the terminal echo and stop listening for signals. + defer signal.Stop(sig) + defer close(brk) + defer echoOn(fd) + + syscall.Wait4(pid, nil, 0, nil) + + line, err := readline() + if err == nil { + password = strings.TrimSpace(line) + } else { + err = fmt.Errorf("failed during password entry: %s", err) + } + + return password, err +} + +// echoOff turns off the terminal echo. +func echoOff(fd []uintptr) (int, error) { + pid, err := syscall.ForkExec(sttyArg0, sttyArgvEOff, &syscall.ProcAttr{Dir: "", Files: fd}) + if err != nil { + return 0, fmt.Errorf("failed turning off console echo for password entry:\n\t%s", err) + } + return pid, nil +} + +// echoOn turns back on the terminal echo. +func echoOn(fd []uintptr) { + // Turn on the terminal echo. + pid, e := syscall.ForkExec(sttyArg0, sttyArgvEOn, &syscall.ProcAttr{Dir: "", Files: fd}) + if e == nil { + syscall.Wait4(pid, nil, 0, nil) + } +} + +// catchSignal tries to catch SIGKILL, SIGQUIT and SIGINT so that we can turn +// terminal echo back on before the program ends. Otherwise the user is left +// with echo off on their terminal. +func catchSignal(fd []uintptr, sig chan os.Signal, brk chan bool) { + select { + case <-sig: + echoOn(fd) + os.Exit(-1) + case <-brk: + } +} diff --git a/vendor/github.com/hashicorp/go-sockaddr/cmd/sockaddr/vendor/github.com/bgentry/speakeasy/speakeasy_windows.go b/vendor/github.com/hashicorp/go-sockaddr/cmd/sockaddr/vendor/github.com/bgentry/speakeasy/speakeasy_windows.go new file mode 100644 index 000000000..c2093a809 --- /dev/null +++ b/vendor/github.com/hashicorp/go-sockaddr/cmd/sockaddr/vendor/github.com/bgentry/speakeasy/speakeasy_windows.go @@ -0,0 +1,41 @@ +// +build windows + +package speakeasy + +import ( + "syscall" +) + +// SetConsoleMode function can be used to change value of ENABLE_ECHO_INPUT: +// http://msdn.microsoft.com/en-us/library/windows/desktop/ms686033(v=vs.85).aspx +const ENABLE_ECHO_INPUT = 0x0004 + +func getPassword() (password string, err error) { + var oldMode uint32 + + err = syscall.GetConsoleMode(syscall.Stdin, &oldMode) + if err != nil { + return + } + + var newMode uint32 = (oldMode &^ ENABLE_ECHO_INPUT) + + err = setConsoleMode(syscall.Stdin, newMode) + defer setConsoleMode(syscall.Stdin, oldMode) + if err != nil { + return + } + + return readline() +} + +func setConsoleMode(console syscall.Handle, mode uint32) (err error) { + dll := syscall.MustLoadDLL("kernel32") + proc := dll.MustFindProc("SetConsoleMode") + r, _, err := proc.Call(uintptr(console), uintptr(mode)) + + if r == 0 { + return err + } + return nil +} |