60 lines
1.6 KiB
Rust
60 lines
1.6 KiB
Rust
// Copyright 2015-2020 Parity Technologies (UK) Ltd.
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// This file is part of OpenEthereum.
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// OpenEthereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// OpenEthereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with OpenEthereum. If not, see <http://www.gnu.org/licenses/>.
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use std::{fmt, ptr};
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#[derive(Clone, PartialEq, Eq, Serialize, Deserialize)]
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pub struct Password(String);
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impl fmt::Debug for Password {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "Password(******)")
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}
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}
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impl Password {
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pub fn as_bytes(&self) -> &[u8] {
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self.0.as_bytes()
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}
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pub fn as_str(&self) -> &str {
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self.0.as_str()
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}
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}
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// Custom drop impl to zero out memory.
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impl Drop for Password {
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fn drop(&mut self) {
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unsafe {
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for byte_ref in self.0.as_mut_vec() {
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ptr::write_volatile(byte_ref, 0)
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}
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}
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}
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}
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impl From<String> for Password {
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fn from(s: String) -> Password {
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Password(s)
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}
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}
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impl<'a> From<&'a str> for Password {
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fn from(s: &'a str) -> Password {
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Password::from(String::from(s))
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}
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}
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