From dcd23ae1f1b52f48f3d32a753ae4db065b3985f8 Mon Sep 17 00:00:00 2001 From: def Date: Tue, 3 Feb 2015 17:47:27 +0100 Subject: Add readPasswordFromStdin to rdstdin --- lib/impure/rdstdin.nim | 42 ++++++++++++++++++++++++++++++++++++++---- 1 file changed, 38 insertions(+), 4 deletions(-) diff --git a/lib/impure/rdstdin.nim b/lib/impure/rdstdin.nim index 07ef13fd9..258da2207 100644 --- a/lib/impure/rdstdin.nim +++ b/lib/impure/rdstdin.nim @@ -31,9 +31,27 @@ when defined(Windows): stdout.write(prompt) result = readLine(stdin, line) + proc getch(): cint {.header: "", importc: "_getch".} + + proc readPasswordFromStdin*(prompt: string, password: var TaintedString) = + ## Reads a `password` from stdin without printing it. `password` must not + ## be ``nil``! + password.setLen(0) + var c: char + echo prompt + while true: + c = getch().char + case c + of '\r', chr(0xA): + break + of '\b': + password.setLen(result.len - 1) + else: + password.add(c) + else: - import readline, history - + import readline, history, termios, unsigned + proc readLineFromStdin*(prompt: string): TaintedString {. tags: [ReadIOEffect, WriteIOEffect].} = var buffer = readline.readLine(prompt) @@ -55,8 +73,24 @@ else: result = true # initialization: - # disable auto-complete: + # disable auto-complete: proc doNothing(a, b: cint): cint {.cdecl, procvar.} = discard - + discard readline.bind_key('\t'.ord, doNothing) + proc readPasswordFromStdin*(prompt: string, password: var TaintedString) = + password.setLen(0) + let fd = stdin.getFileHandle() + var cur, old: Termios + discard fd.tcgetattr(cur.addr) + old = cur + cur.lflag = cur.lflag and not Tcflag(ECHO) + discard fd.tcsetattr(TCSADRAIN, cur.addr) + stdout.write prompt + discard stdin.readLine(password) + discard fd.tcsetattr(TCSADRAIN, old.addr) + +proc readPasswordFromStdin*(prompt: string): TaintedString = + ## Reads a password from stdin without printing it. + result = TaintedString("") + readPasswordFromStdin(prompt, result) -- cgit 1.4.1-2-gfad0 mmitter

path: root/tests/misc/minit.nim

blob: 513f46af550a2197e5a916f1b4c93d02f8c70aba (plain) (tree)

e80465dac ^

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