zig-std 0.1.1

Bindings to Zig `std`, with optional Rust `std` features
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131

use crate::util::{ ReprCSlice, sys };

pub mod pwhash;

sys! {
	pub fn zig_std_rs__crypto__secure_zero_u8(ptr: ReprCSlice<u8>);
	pub fn zig_std_rs__crypto__secure_zero_u16(ptr: ReprCSlice<u16>);
	pub fn zig_std_rs__crypto__secure_zero_u32(ptr: ReprCSlice<u32>);
	pub fn zig_std_rs__crypto__secure_zero_u64(ptr: ReprCSlice<u64>);
	pub fn zig_std_rs__crypto__secure_zero_u128(ptr: ReprCSlice<u128>);
}

#[inline]
pub fn secure_zero_u8(val: &mut u8) {
	unsafe { sys::zig_std_rs__crypto__secure_zero_u8(val.into()) }
}

#[inline]
pub fn secure_zero_u16(val: &mut u16) {
	unsafe { sys::zig_std_rs__crypto__secure_zero_u16(val.into()) }
}

#[inline]
pub fn secure_zero_u32(val: &mut u32) {
	unsafe { sys::zig_std_rs__crypto__secure_zero_u32(val.into()) }
}

#[inline]
pub fn secure_zero_u64(val: &mut u64) {
	unsafe { sys::zig_std_rs__crypto__secure_zero_u64(val.into()) }
}

#[inline]
pub fn secure_zero_u128(val: &mut u128) {
	unsafe { sys::zig_std_rs__crypto__secure_zero_u128(val.into()) }
}

#[inline]
pub fn secure_zero_u8_slice(val: &mut [u8]) {
	unsafe { sys::zig_std_rs__crypto__secure_zero_u8(val.into()) }
}

#[inline]
pub fn secure_zero_u16_slice(val: &mut [u16]) {
	unsafe { sys::zig_std_rs__crypto__secure_zero_u16(val.into()) }
}

#[inline]
pub fn secure_zero_u32_slice(val: &mut [u32]) {
	unsafe { sys::zig_std_rs__crypto__secure_zero_u32(val.into()) }
}

#[inline]
pub fn secure_zero_u64_slice(val: &mut [u64]) {
	unsafe { sys::zig_std_rs__crypto__secure_zero_u64(val.into()) }
}

#[inline]
pub fn secure_zero_u128_slice(val: &mut [u128]) {
	unsafe { sys::zig_std_rs__crypto__secure_zero_u128(val.into()) }
}

#[cfg(test)]
mod tests {
	use super::*;

	macro_rules! test_secure_zero {
		{
			$(
				$fn:ident
				$test_fn:ident
				$fn_slice:ident
				$test_fn_slice:ident
				$ty:ty
			)*
		} => {
			$(
				#[test]
				fn $test_fn() {
					let mut values: [$ty; _] = [1, 2, 4, 6, 247];

					for value in &mut values {
						$fn(value);
						assert_eq!(*value, 0);
					}
				}

				#[test]
				fn $test_fn_slice() {
					let mut values: [$ty; _] = [1, 2, 4, 6, 247];

					$fn_slice(&mut values);
					assert_eq!(values, [0; 5]);
				}
			)*
		}
	}

	test_secure_zero! {
		secure_zero_u8
		test_secure_zero_u8
		secure_zero_u8_slice
		test_secure_zero_u8_slice
		u8

		secure_zero_u16
		test_secure_zero_u16
		secure_zero_u16_slice
		test_secure_zero_u16_slice
		u16

		secure_zero_u32
		test_secure_zero_u32
		secure_zero_u32_slice
		test_secure_zero_u32_slice
		u32

		secure_zero_u64
		test_secure_zero_u64
		secure_zero_u64_slice
		test_secure_zero_u64_slice
		u64

		secure_zero_u128
		test_secure_zero_u128
		secure_zero_u128_slice
		test_secure_zero_u128_slice
		u128

	}
}