From fb1b9b414084aac35611bc2149bde0ae1175090a Mon Sep 17 00:00:00 2001
From: Axel Rasmussen <axelrasmussen@google.com>
Date: Wed, 30 May 2018 18:30:51 -0700
Subject: [PATCH] Add an openssl-sys binding for
 RSA_padding_check_PKCS1_type_2.

This padding check implementation is useful for certain types of RSA
decryption, notably the type performed by Yubico's PIV library.
---
 openssl-sys/src/lib.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/openssl-sys/src/lib.rs b/openssl-sys/src/lib.rs
index f2a77cab..aaeb9713 100644
--- a/openssl-sys/src/lib.rs
+++ b/openssl-sys/src/lib.rs
@@ -2365,6 +2365,14 @@ extern "C" {
         k: *mut RSA,
     ) -> c_int;
 
+    pub fn RSA_padding_check_PKCS1_type_2(
+        to: *mut c_uchar,
+        tlen: c_int,
+        f: *const c_uchar,
+        fl: c_int,
+        rsa_len: c_int,
+    ) -> c_int;
+
     pub fn DSA_new() -> *mut DSA;
     pub fn DSA_free(dsa: *mut DSA);
     pub fn DSA_size(dsa: *const DSA) -> c_int;