Commit 5c7fa43d authored by Steven Fackler's avatar Steven Fackler
Browse files

Add bindings to RAND_keep_random_devices_open 

Closes #1019
parent 894b924f

openssl-sys/src/rand.rs

+4 −0
Original line number Diff line number Diff line
@@ -2,5 +2,9 @@ use libc::*; 


extern "C" {

    pub fn RAND_bytes(buf: *mut u8, num: c_int) -> c_int;



    #[cfg(ossl111)]

    pub fn RAND_keep_random_devices_open(keep: c_int);



    pub fn RAND_status() -> c_int;

}

openssl/src/rand.rs

+18 −4
Original line number Diff line number Diff line
@@ -10,14 +10,16 @@ 
//! let mut buf = [0; 256];

//! rand_bytes(&mut buf).unwrap();

//! ```

use libc::c_int;

use ffi;

use libc::c_int;



use cvt;

use error::ErrorStack;



/// Fill buffer with cryptographically strong pseudo-random bytes.

///

/// This corresponds to [`RAND_bytes`].

///

/// # Examples

///

/// To generate a buffer with cryptographically strong bytes:
@@ -29,9 +31,7 @@ use error::ErrorStack; 
/// rand_bytes(&mut buf).unwrap();

/// ```

///

/// # External OpenSSL Documentation

///

/// [RAND_bytes](https://www.openssl.org/docs/man1.1.0/crypto/RAND_bytes.html)

/// [`RAND_bytes`](https://www.openssl.org/docs/man1.1.0/crypto/RAND_bytes.html)

pub fn rand_bytes(buf: &mut [u8]) -> Result<(), ErrorStack> {

    unsafe {

        ffi::init();
@@ -40,6 +40,20 @@ pub fn rand_bytes(buf: &mut [u8]) -> Result<(), ErrorStack> { 
    }

}



/// Controls random device file descriptor behavior.

///

/// Requires OpenSSL 1.1.1 or newer.

///

/// This corresponds to [`RAND_keep_random_devices_open`].

///

/// [`RAND_keep_random_devices_open`]: https://www.openssl.org/docs/manmaster/man3/RAND_keep_random_devices_open.html

#[cfg(ossl111)]

pub fn keep_random_devices_open(keep: bool) {

    unsafe {

        ffi::RAND_keep_random_devices_open(keep as c_int);

    }

}



#[cfg(test)]

mod tests {

    use super::rand_bytes;