+#![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
+#![allow(dead_code)]
+#![doc(html_root_url="https://sfackler.github.io/rust-openssl/doc/v0.6.3")]
+
+extern crate libc;
+
+#[cfg(target_os = "nacl")]
+extern crate libressl_pnacl_sys;
+
+use libc::{c_void, c_int, c_char, c_ulong, c_long, c_uint, c_uchar, size_t};
+use std::mem;
+use std::ptr;
+use std::sync::{Mutex, MutexGuard};
+use std::sync::{Once, ONCE_INIT};
+
+pub type ASN1_INTEGER = c_void;
+pub type ASN1_STRING = c_void;
+pub type ASN1_TIME = c_void;
+pub type BIO = c_void;
+pub type BIO_METHOD = c_void;
+pub type BN_CTX = c_void;
+pub type COMP_METHOD = c_void;
+pub type CRYPTO_EX_DATA = c_void;
+pub type ENGINE = c_void;
+pub type EVP_CIPHER = c_void;
+pub type EVP_CIPHER_CTX = c_void;
+pub type EVP_MD = c_void;
+pub type EVP_PKEY = c_void;
+pub type EVP_PKEY_CTX = c_void;
+pub type RSA = c_void;
+pub type SSL = c_void;
+pub type SSL_CTX = c_void;
+pub type SSL_METHOD = c_void;
+pub type X509 = c_void;
+pub type X509_CRL = c_void;
+pub type X509_EXTENSION = c_void;
+pub type X509_NAME = c_void;
+pub type X509_NAME_ENTRY = c_void;
+pub type X509_REQ = c_void;
+pub type X509_STORE_CTX = c_void;
+
+#[repr(C)]
+pub struct EVP_MD_CTX {
+    digest: *mut EVP_MD,
+    engine: *mut c_void,
+    flags: c_ulong,
+    md_data: *mut c_void,
+    pctx: *mut EVP_PKEY_CTX,
+    update: *mut c_void
+}
+
+impl Copy for EVP_MD_CTX {}
+impl Clone for EVP_MD_CTX {
+    fn clone(&self) -> EVP_MD_CTX { *self }
+}
+
+#[repr(C)]
+pub struct HMAC_CTX {
+    md: *mut EVP_MD,
+    md_ctx: EVP_MD_CTX,
+    i_ctx: EVP_MD_CTX,
+    o_ctx: EVP_MD_CTX,
+    key_length: c_uint,
+    key: [c_uchar; 128]
+}
+
+impl Copy for HMAC_CTX {}
+impl Clone for HMAC_CTX {
+    fn clone(&self) -> HMAC_CTX { *self }
+}
+
+#[repr(C)]
+pub struct X509V3_CTX {
+    flags: c_int,
+    issuer_cert: *mut c_void,
+    subject_cert: *mut c_void,
+    subject_req: *mut c_void,
+    crl: *mut c_void,
+    db_meth: *mut c_void,
+    db: *mut c_void,
+    // I like the last comment line, it is copied from OpenSSL sources:
+    // Maybe more here
+}
+
+impl Copy for X509V3_CTX {}
+impl Clone for X509V3_CTX {
+    fn clone(&self) -> X509V3_CTX { *self }
+}
+
+#[repr(C)]
+pub struct BIGNUM {
+    pub d: *mut c_void,
+    pub top: c_int,
+    pub dmax: c_int,
+    pub neg: c_int,
+    pub flags: c_int,
+}
+
+impl Copy for BIGNUM {}
+impl Clone for BIGNUM {
+    fn clone(&self) -> BIGNUM { *self }
+}
+
+pub type CRYPTO_EX_new = extern "C" fn(parent: *mut c_void, ptr: *mut c_void,
+                                       ad: *const CRYPTO_EX_DATA, idx: c_int,
+                                       argl: c_long, argp: *const c_void) -> c_int;
+pub type CRYPTO_EX_dup = extern "C" fn(to: *mut CRYPTO_EX_DATA,
+                                       from: *mut CRYPTO_EX_DATA, from_d: *mut c_void,
+                                       idx: c_int, argl: c_long, argp: *mut c_void)
+                                       -> c_int;
+pub type CRYPTO_EX_free = extern "C" fn(parent: *mut c_void, ptr: *mut c_void,
+                                        ad: *mut CRYPTO_EX_DATA, idx: c_int,
+                                        argl: c_long, argp: *mut c_void);
+pub type PasswordCallback = extern "C" fn(buf: *mut c_char, size: c_int,
+                                          rwflag: c_int, user_data: *mut c_void)
+                                          -> c_int;
+
+pub const BIO_CTRL_EOF: c_int = 2;
+pub const BIO_C_SET_BUF_MEM_EOF_RETURN: c_int = 130;
+
+pub const CRYPTO_LOCK: c_int = 1;
+
+pub const MBSTRING_ASC:  c_int = MBSTRING_FLAG | 1;
+pub const MBSTRING_BMP:  c_int = MBSTRING_FLAG | 2;
+pub const MBSTRING_FLAG: c_int = 0x1000;
+pub const MBSTRING_UNIV: c_int = MBSTRING_FLAG | 4;
+pub const MBSTRING_UTF8: c_int = MBSTRING_FLAG;
+
+pub const NID_ext_key_usage: c_int = 126;
+pub const NID_key_usage:     c_int = 83;
+
+pub const SSL_CTRL_OPTIONS: c_int = 32;
+pub const SSL_CTRL_CLEAR_OPTIONS: c_int = 77;
+
+pub const SSL_CTRL_SET_TLSEXT_HOSTNAME: c_int = 55;
+pub const SSL_CTRL_EXTRA_CHAIN_CERT: c_int = 14;
+
+pub const SSL_CTRL_SET_READ_AHEAD: c_int = 41;
+pub const SSL_ERROR_NONE: c_int = 0;
+pub const SSL_ERROR_SSL: c_int = 1;
+pub const SSL_ERROR_SYSCALL: c_int = 5;
+pub const SSL_ERROR_WANT_ACCEPT: c_int = 8;
+pub const SSL_ERROR_WANT_CONNECT: c_int = 7;
+pub const SSL_ERROR_WANT_READ: c_int = 2;
+pub const SSL_ERROR_WANT_WRITE: c_int = 3;
+pub const SSL_ERROR_WANT_X509_LOOKUP: c_int = 4;
+pub const SSL_ERROR_ZERO_RETURN: c_int = 6;
+pub const SSL_VERIFY_NONE: c_int = 0;
+pub const SSL_VERIFY_PEER: c_int = 1;
+pub const SSL_VERIFY_FAIL_IF_NO_PEER_CERT: c_int = 2;
+
+pub const TLSEXT_NAMETYPE_host_name: c_long = 0;
+
+pub const SSL_TLSEXT_ERR_OK: c_int = 0;
+pub const SSL_TLSEXT_ERR_ALERT_WARNING: c_int = 1;
+pub const SSL_TLSEXT_ERR_ALERT_FATAL: c_int = 2;
+pub const SSL_TLSEXT_ERR_NOACK: c_int = 3;
+
+#[cfg(feature = "npn")]
+pub const OPENSSL_NPN_UNSUPPORTED: c_int = 0;
+#[cfg(feature = "npn")]
+pub const OPENSSL_NPN_NEGOTIATED: c_int = 1;
+#[cfg(feature = "npn")]
+pub const OPENSSL_NPN_NO_OVERLAP: c_int = 2;
+
+pub const V_ASN1_GENERALIZEDTIME: c_int = 24;
+pub const V_ASN1_UTCTIME:         c_int = 23;
+
+pub const X509_FILETYPE_ASN1: c_int = 2;
+pub const X509_FILETYPE_DEFAULT: c_int = 3;
+pub const X509_FILETYPE_PEM: c_int = 1;
+pub const X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH: c_int = 31;
+pub const X509_V_ERR_AKID_SKID_MISMATCH: c_int = 30;
+pub const X509_V_ERR_APPLICATION_VERIFICATION: c_int = 50;
+pub const X509_V_ERR_CERT_CHAIN_TOO_LONG: c_int = 22;
+pub const X509_V_ERR_CERT_HAS_EXPIRED: c_int = 10;
+pub const X509_V_ERR_CERT_NOT_YET_VALID: c_int = 9;
+pub const X509_V_ERR_CERT_REJECTED: c_int = 28;
+pub const X509_V_ERR_CERT_REVOKED: c_int = 23;
+pub const X509_V_ERR_CERT_SIGNATURE_FAILURE: c_int = 7;
+pub const X509_V_ERR_CERT_UNTRUSTED: c_int = 27;
+pub const X509_V_ERR_CRL_HAS_EXPIRED: c_int = 12;
+pub const X509_V_ERR_CRL_NOT_YET_VALID: c_int = 11;
+pub const X509_V_ERR_CRL_PATH_VALIDATION_ERROR: c_int = 54;
+pub const X509_V_ERR_CRL_SIGNATURE_FAILURE: c_int = 8;
+pub const X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT: c_int = 18;
+pub const X509_V_ERR_DIFFERENT_CRL_SCOPE: c_int = 44;
+pub const X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD: c_int = 14;
+pub const X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD: c_int = 13;
+pub const X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD: c_int = 15;
+pub const X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD: c_int = 16;
+pub const X509_V_ERR_EXCLUDED_VIOLATION: c_int = 48;
+pub const X509_V_ERR_INVALID_CA: c_int = 24;
+pub const X509_V_ERR_INVALID_EXTENSION: c_int = 41;
+pub const X509_V_ERR_INVALID_NON_CA: c_int = 37;
+pub const X509_V_ERR_INVALID_POLICY_EXTENSION: c_int = 42;
+pub const X509_V_ERR_INVALID_PURPOSE: c_int = 26;
+pub const X509_V_ERR_KEYUSAGE_NO_CERTSIGN: c_int = 32;
+pub const X509_V_ERR_KEYUSAGE_NO_CRL_SIGN: c_int = 35;
+pub const X509_V_ERR_KEYUSAGE_NO_DIGITAL_SIGNATURE: c_int = 39;
+pub const X509_V_ERR_NO_EXPLICIT_POLICY: c_int = 43;
+pub const X509_V_ERR_OUT_OF_MEM: c_int = 17;
+pub const X509_V_ERR_PATH_LENGTH_EXCEEDED: c_int = 25;
+pub const X509_V_ERR_PERMITTED_VIOLATION: c_int = 47;
+pub const X509_V_ERR_PROXY_CERTIFICATES_NOT_ALLOWED: c_int = 40;
+pub const X509_V_ERR_PROXY_PATH_LENGTH_EXCEEDED: c_int = 38;
+pub const X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN: c_int = 19;
+pub const X509_V_ERR_SUBJECT_ISSUER_MISMATCH: c_int = 29;
+pub const X509_V_ERR_SUBTREE_MINMAX: c_int = 49;
+pub const X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY: c_int = 6;
+pub const X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE: c_int = 4;
+pub const X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE: c_int = 5;
+pub const X509_V_ERR_UNABLE_TO_GET_CRL: c_int = 3;
+pub const X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER: c_int = 33;
+pub const X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT: c_int = 2;
+pub const X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY: c_int = 20;
+pub const X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE: c_int = 21;
+pub const X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION: c_int = 36;
+pub const X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION: c_int = 34;
+pub const X509_V_ERR_UNNESTED_RESOURCE: c_int = 46;
+pub const X509_V_ERR_UNSUPPORTED_CONSTRAINT_SYNTAX: c_int = 52;
+pub const X509_V_ERR_UNSUPPORTED_CONSTRAINT_TYPE: c_int = 51;
+pub const X509_V_ERR_UNSUPPORTED_EXTENSION_FEATURE: c_int = 45;
+pub const X509_V_ERR_UNSUPPORTED_NAME_SYNTAX: c_int = 53;
+pub const X509_V_OK: c_int = 0;
+
+static mut MUTEXES: *mut Vec<Mutex<()>> = 0 as *mut Vec<Mutex<()>>;
+static mut GUARDS: *mut Vec<Option<MutexGuard<'static, ()>>> = 0 as *mut Vec<Option<MutexGuard<'static, ()>>>;
+
+extern fn locking_function(mode: c_int, n: c_int, _file: *const c_char,
+                               _line: c_int) {
+    unsafe {
+        let mutex = &(*MUTEXES)[n as usize];
+
+        if mode & CRYPTO_LOCK != 0 {
+            (*GUARDS)[n as usize] = Some(mutex.lock().unwrap());
+        } else {
+            &(*GUARDS)[n as usize].take();
+        }
+    }
+}
+
+pub fn init() {
+    static mut INIT: Once = ONCE_INIT;
+
+    unsafe {
+        INIT.call_once(|| {
+            SSL_library_init();
+            SSL_load_error_strings();
+
+            let num_locks = CRYPTO_num_locks();
+            let mut mutexes = Box::new(Vec::new());
+            for _ in 0..num_locks {
+                mutexes.push(Mutex::new(()));
+            }
+            MUTEXES = mem::transmute(mutexes);
+            let guards: Box<Vec<Option<MutexGuard<()>>>> =
+                Box::new((0..num_locks).map(|_| None).collect());
+            GUARDS = mem::transmute(guards);
+
+            CRYPTO_set_locking_callback(locking_function);
+        })
+    }
+}
+
+// Functions converted from macros
+pub unsafe fn BIO_eof(b: *mut BIO) -> bool {
+    BIO_ctrl(b, BIO_CTRL_EOF, 0, ptr::null_mut()) == 1
+}
+
+pub unsafe fn SSL_CTX_set_options(ssl: *mut SSL_CTX, op: c_long) -> c_long {
+    SSL_CTX_ctrl(ssl, SSL_CTRL_OPTIONS, op, ptr::null_mut())
+}
+
+pub unsafe fn BIO_set_mem_eof_return(b: *mut BIO, v: c_int) {
+    BIO_ctrl(b, BIO_C_SET_BUF_MEM_EOF_RETURN, v as c_long, ptr::null_mut());
+}
+
+pub unsafe fn SSL_CTX_get_options(ssl: *mut SSL_CTX) -> c_long {
+    SSL_CTX_ctrl(ssl, SSL_CTRL_OPTIONS, 0, ptr::null_mut())
+}
+
+pub unsafe fn SSL_CTX_clear_options(ssl: *mut SSL_CTX, op: c_long) -> c_long {
+    SSL_CTX_ctrl(ssl, SSL_CTRL_CLEAR_OPTIONS, (op), ptr::null_mut())
+}
+
+pub unsafe fn SSL_CTX_add_extra_chain_cert(ssl: *mut SSL_CTX, cert: *mut X509) -> c_long {
+    SSL_CTX_ctrl(ssl, SSL_CTRL_EXTRA_CHAIN_CERT, 0, cert)
+}
+
+pub unsafe fn SSL_CTX_set_read_ahead(ctx: *mut SSL_CTX, m: c_long) -> c_long {
+    SSL_CTX_ctrl(ctx, SSL_CTRL_SET_READ_AHEAD, m, ptr::null_mut())
+}
+
+// True functions
+extern "C" {
+    pub fn ASN1_INTEGER_set(dest: *mut ASN1_INTEGER, value: c_long) -> c_int;
+    pub fn ASN1_STRING_type_new(ty: c_int) -> *mut ASN1_STRING;
+    pub fn ASN1_TIME_free(tm: *mut ASN1_TIME);
+
+    pub fn BIO_ctrl(b: *mut BIO, cmd: c_int, larg: c_long, parg: *mut c_void) -> c_long;
+    pub fn BIO_free_all(b: *mut BIO);
+    pub fn BIO_new(type_: *const BIO_METHOD) -> *mut BIO;
+    pub fn BIO_read(b: *mut BIO, buf: *mut c_void, len: c_int) -> c_int;
+    pub fn BIO_write(b: *mut BIO, buf: *const c_void, len: c_int) -> c_int;
+    pub fn BIO_s_mem() -> *const BIO_METHOD;
+
+    pub fn BN_new() -> *mut BIGNUM;
+    pub fn BN_dup(n: *mut BIGNUM) -> *mut BIGNUM;
+    pub fn BN_clear_free(bn: *mut BIGNUM);
+
+    pub fn BN_CTX_new() -> *mut BN_CTX;
+    pub fn BN_CTX_free(ctx: *mut BN_CTX);
+
+    pub fn BN_num_bits(bn: *mut BIGNUM) -> c_int;
+    pub fn BN_set_negative(bn: *mut BIGNUM, n: c_int);
+    pub fn BN_set_word(bn: *mut BIGNUM, n: c_ulong) -> c_int;
+
+    /* Arithmetic operations on BIGNUMs */
+    pub fn BN_add(r: *mut BIGNUM, a: *mut BIGNUM, b: *mut BIGNUM) -> c_int;
+    pub fn BN_div(dv: *mut BIGNUM, rem: *mut BIGNUM, a: *mut BIGNUM, b: *mut BIGNUM, ctx: *mut BN_CTX) -> c_int;
+    pub fn BN_exp(r: *mut BIGNUM, a: *mut BIGNUM, p: *mut BIGNUM, ctx: *mut BN_CTX) -> c_int;
+    pub fn BN_gcd(r: *mut BIGNUM, a: *mut BIGNUM, b: *mut BIGNUM, ctx: *mut BN_CTX) -> c_int;
+    pub fn BN_mod_add(r: *mut BIGNUM, a: *mut BIGNUM, b: *mut BIGNUM, m: *mut BIGNUM, ctx: *mut BN_CTX) -> c_int;
+    pub fn BN_mod_exp(r: *mut BIGNUM, a: *mut BIGNUM, p: *mut BIGNUM, m: *mut BIGNUM, ctx: *mut BN_CTX) -> c_int;
+    pub fn BN_mod_inverse(r: *mut BIGNUM, a: *mut BIGNUM, n: *mut BIGNUM, ctx: *mut BN_CTX) -> *const BIGNUM;
+    pub fn BN_mod_mul(r: *mut BIGNUM, a: *mut BIGNUM, b: *mut BIGNUM, m: *mut BIGNUM, ctx: *mut BN_CTX) -> c_int;
+    pub fn BN_mod_sqr(r: *mut BIGNUM, a: *mut BIGNUM, m: *mut BIGNUM, ctx: *mut BN_CTX) -> c_int;
+    pub fn BN_mod_sub(r: *mut BIGNUM, a: *mut BIGNUM, b: *mut BIGNUM, m: *mut BIGNUM, ctx: *mut BN_CTX) -> c_int;
+    pub fn BN_mul(r: *mut BIGNUM, a: *mut BIGNUM, b: *mut BIGNUM, ctx: *mut BN_CTX) -> c_int;
+    pub fn BN_nnmod(rem: *mut BIGNUM, a: *mut BIGNUM, m: *mut BIGNUM, ctx: *mut BN_CTX) -> c_int;
+    pub fn BN_add_word(r: *mut BIGNUM, w: c_ulong) -> c_int;
+    pub fn BN_sub_word(r: *mut BIGNUM, w: c_ulong) -> c_int;
+    pub fn BN_mul_word(r: *mut BIGNUM, w: c_ulong) -> c_int;
+    pub fn BN_div_word(r: *mut BIGNUM, w: c_ulong) -> c_ulong;
+    pub fn BN_mod_word(r: *const BIGNUM, w: c_ulong) -> c_ulong;
+    pub fn BN_sqr(r: *mut BIGNUM, a: *mut BIGNUM, ctx: *mut BN_CTX) -> c_int;
+    pub fn BN_sub(r: *mut BIGNUM, a: *mut BIGNUM, b: *mut BIGNUM) -> c_int;
+
+    /* Bit operations on BIGNUMs */
+    pub fn BN_clear_bit(a: *mut BIGNUM, n: c_int) -> c_int;
+    pub fn BN_is_bit_set(a: *mut BIGNUM, n: c_int) -> c_int;
+    pub fn BN_lshift(r: *mut BIGNUM, a: *mut BIGNUM, n: c_int) -> c_int;
+    pub fn BN_lshift1(r: *mut BIGNUM, a: *mut BIGNUM) -> c_int;
+    pub fn BN_mask_bits(a: *mut BIGNUM, n: c_int) -> c_int;
+    pub fn BN_rshift(r: *mut BIGNUM, a: *mut BIGNUM, n: c_int) -> c_int;
+    pub fn BN_set_bit(a: *mut BIGNUM, n: c_int) -> c_int;
+    pub fn BN_rshift1(r: *mut BIGNUM, a: *mut BIGNUM) -> c_int;
+
+    /* Comparisons on BIGNUMs */
+    pub fn BN_cmp(a: *mut BIGNUM, b: *mut BIGNUM) -> c_int;
+    pub fn BN_ucmp(a: *mut BIGNUM, b: *mut BIGNUM) -> c_int;
+
+    /* Prime handling */
+    pub fn BN_generate_prime_ex(r: *mut BIGNUM, bits: c_int, safe: c_int, add: *mut BIGNUM, rem: *mut BIGNUM, cb: *const c_void) -> c_int;
+    pub fn BN_is_prime_ex(p: *mut BIGNUM, checks: c_int, ctx: *mut BN_CTX, cb: *const c_void) -> c_int;
+    pub fn BN_is_prime_fasttest_ex(p: *mut BIGNUM, checks: c_int, ctx: *mut BN_CTX, do_trial_division: c_int, cb: *const c_void) -> c_int;
+
+    /* Random number handling */
+    pub fn BN_rand(r: *mut BIGNUM, bits: c_int, top: c_int, bottom: c_int) -> c_int;
+    pub fn BN_pseudo_rand(r: *mut BIGNUM, bits: c_int, top: c_int, bottom: c_int) -> c_int;
+    pub fn BN_rand_range(r: *mut BIGNUM, range: *mut BIGNUM) -> c_int;
+    pub fn BN_pseudo_rand_range(r: *mut BIGNUM, range: *mut BIGNUM) -> c_int;
+
+    /* Conversion from/to binary representation */
+    pub fn BN_bin2bn(s: *const u8, size: c_int, ret: *mut BIGNUM) -> *mut BIGNUM;
+    pub fn BN_bn2bin(a: *mut BIGNUM, to: *mut u8) -> c_int;
+
+    /* Conversion from/to decimal string representation */
+    pub fn BN_dec2bn(a: *const *mut BIGNUM, s: *const c_char) -> c_int;
+    pub fn BN_bn2dec(a: *mut BIGNUM) -> *const c_char;
+
+    /* Conversion from/to hexidecimal string representation */
+    pub fn BN_hex2bn(a: *const *mut BIGNUM, s: *const c_char) -> c_int;
+    pub fn BN_bn2hex(a: *mut BIGNUM) -> *const c_char;
+
+    pub fn CRYPTO_num_locks() -> c_int;
+    pub fn CRYPTO_set_locking_callback(func: extern "C" fn(mode: c_int,
+                                                           n: c_int,
+                                                           file: *const c_char,
+                                                           line: c_int));
+    pub fn CRYPTO_free(buf: *mut c_void);
+    pub fn CRYPTO_memcmp(a: *const c_void, b: *const c_void,
+                         len: size_t) -> c_int;
+
+    pub fn ERR_get_error() -> c_ulong;
+
+    pub fn ERR_lib_error_string(err: c_ulong) -> *const c_char;
+    pub fn ERR_func_error_string(err: c_ulong) -> *const c_char;
+    pub fn ERR_reason_error_string(err: c_ulong) -> *const c_char;
+
+    pub fn ERR_load_crypto_strings();
+
+    pub fn EVP_md5() -> *const EVP_MD;
+    pub fn EVP_ripemd160() -> *const EVP_MD;
+    pub fn EVP_sha1() -> *const EVP_MD;
+    pub fn EVP_sha224() -> *const EVP_MD;
+    pub fn EVP_sha256() -> *const EVP_MD;
+    pub fn EVP_sha384() -> *const EVP_MD;
+    pub fn EVP_sha512() -> *const EVP_MD;
+
+    pub fn EVP_aes_128_cbc() -> *const EVP_CIPHER;
+    pub fn EVP_aes_128_ecb() -> *const EVP_CIPHER;
+    #[cfg(feature = "aes_xts")]
+    pub fn EVP_aes_128_xts() -> *const EVP_CIPHER;
+    // fn EVP_aes_128_ctr() -> EVP_CIPHER;
+    // fn EVP_aes_128_gcm() -> EVP_CIPHER;
+    pub fn EVP_aes_256_cbc() -> *const EVP_CIPHER;
+    pub fn EVP_aes_256_ecb() -> *const EVP_CIPHER;
+    #[cfg(feature = "aes_xts")]
+    pub fn EVP_aes_256_xts() -> *const EVP_CIPHER;
+    // fn EVP_aes_256_ctr() -> EVP_CIPHER;
+    // fn EVP_aes_256_gcm() -> EVP_CIPHER;
+    pub fn EVP_rc4() -> *const EVP_CIPHER;
+
+    pub fn EVP_CIPHER_CTX_new() -> *mut EVP_CIPHER_CTX;
+    pub fn EVP_CIPHER_CTX_set_padding(ctx: *mut EVP_CIPHER_CTX, padding: c_int) -> c_int;
+    pub fn EVP_CIPHER_CTX_free(ctx: *mut EVP_CIPHER_CTX);
+
+    pub fn EVP_CipherInit(ctx: *mut EVP_CIPHER_CTX, evp: *const EVP_CIPHER,
+                          key: *const u8, iv: *const u8, mode: c_int) -> c_int;
+    pub fn EVP_CipherUpdate(ctx: *mut EVP_CIPHER_CTX, outbuf: *mut u8,
+                            outlen: &mut c_int, inbuf: *const u8, inlen: c_int) -> c_int;
+    pub fn EVP_CipherFinal(ctx: *mut EVP_CIPHER_CTX, res: *mut u8, len: &mut c_int) -> c_int;
+
+    pub fn EVP_DigestInit(ctx: *mut EVP_MD_CTX, typ: *const EVP_MD) -> c_int;
+    pub fn EVP_DigestInit_ex(ctx: *mut EVP_MD_CTX, typ: *const EVP_MD, imple: *const ENGINE) -> c_int;
+    pub fn EVP_DigestUpdate(ctx: *mut EVP_MD_CTX, data: *const u8, n: c_uint) -> c_int;
+    pub fn EVP_DigestFinal(ctx: *mut EVP_MD_CTX, res: *mut u8, n: *mut u32) -> c_int;
+    pub fn EVP_DigestFinal_ex(ctx: *mut EVP_MD_CTX, res: *mut u8, n: *mut u32) -> c_int;
+
+    pub fn EVP_MD_CTX_create() -> *mut EVP_MD_CTX;
+    pub fn EVP_MD_CTX_copy_ex(dst: *mut EVP_MD_CTX, src: *const EVP_MD_CTX) -> c_int;
+    pub fn EVP_MD_CTX_destroy(ctx: *mut EVP_MD_CTX);
+
+    pub fn EVP_PKEY_new() -> *mut EVP_PKEY;
+    pub fn EVP_PKEY_free(k: *mut EVP_PKEY);
+    pub fn EVP_PKEY_assign(pkey: *mut EVP_PKEY, typ: c_int, key: *const c_void) -> c_int;
+    pub fn EVP_PKEY_get1_RSA(k: *mut EVP_PKEY) -> *mut RSA;
+    pub fn EVP_PKEY_set1_RSA(k: *mut EVP_PKEY, r: *mut RSA) -> c_int;
+    pub fn EVP_PKEY_cmp(a: *const EVP_PKEY, b: *const EVP_PKEY) -> c_int;
+
+    pub fn HMAC_CTX_init(ctx: *mut HMAC_CTX);
+    pub fn HMAC_CTX_cleanup(ctx: *mut HMAC_CTX);
+    pub fn HMAC_CTX_copy(dst: *mut HMAC_CTX, src: *const HMAC_CTX) -> c_int;
+
+    // Pre-1.0 versions of these didn't return anything, so the shims bridge that gap
+    #[cfg_attr(target_os = "nacl", link_name = "HMAC_Init_ex")]
+    pub fn HMAC_Init_ex_shim(ctx: *mut HMAC_CTX, key: *const u8, keylen: c_int, md: *const EVP_MD, imple: *const ENGINE) -> c_int;
+    #[cfg_attr(target_os = "nacl", link_name = "HMAC_Final")]
+    pub fn HMAC_Final_shim(ctx: *mut HMAC_CTX, output: *mut u8, len: *mut c_uint) -> c_int;
+    #[cfg_attr(target_os = "nacl", link_name = "HMAC_Update")]
+    pub fn HMAC_Update_shim(ctx: *mut HMAC_CTX, input: *const u8, len: c_uint) -> c_int;
+
+
+    pub fn PEM_read_bio_X509(bio: *mut BIO, out: *mut *mut X509, callback: Option<PasswordCallback>,
+                             user_data: *mut c_void) -> *mut X509;
+    pub fn PEM_read_bio_X509_REQ(bio: *mut BIO, out: *mut *mut X509_REQ, callback: Option<PasswordCallback>,
+                             user_data: *mut c_void) -> *mut X509_REQ;
+    pub fn PEM_read_bio_PrivateKey(bio: *mut BIO, out: *mut *mut EVP_PKEY, callback: Option<PasswordCallback>,
+                             user_data: *mut c_void) -> *mut X509;
+
+    pub fn PEM_write_bio_PrivateKey(bio: *mut BIO, pkey: *mut EVP_PKEY, cipher: *const EVP_CIPHER,
+                                    kstr: *mut c_char, klen: c_int,
+                                    callback: Option<PasswordCallback>,
+                                    user_data: *mut c_void) -> c_int;
+    pub fn PEM_write_bio_X509(bio: *mut BIO, x509: *mut X509) -> c_int;
+    pub fn PEM_write_bio_X509_REQ(bio: *mut BIO, x509: *mut X509_REQ) -> c_int;
+
+    pub fn PKCS5_PBKDF2_HMAC_SHA1(pass: *const u8, passlen: c_int,
+                                  salt: *const u8, saltlen: c_int,
+                                  iter: c_int, keylen: c_int,
+                                  out: *mut u8) -> c_int;
+
+
+    pub fn RAND_bytes(buf: *mut u8, num: c_int) -> c_int;
+
+    pub fn RSA_generate_key(modsz: c_int, e: c_ulong, cb: *const c_void, cbarg: *const c_void) -> *mut RSA;
+    pub fn RSA_private_decrypt(flen: c_int, from: *const u8, to: *mut u8, k: *mut RSA,
+                               pad: c_int) -> c_int;
+    pub fn RSA_public_encrypt(flen: c_int, from: *const u8, to: *mut u8, k: *mut RSA,
+                              pad: c_int) -> c_int;
+    pub fn RSA_sign(t: c_int, m: *const u8, mlen: c_uint, sig: *mut u8, siglen: *mut c_uint,
+                    k: *mut RSA) -> c_int;
+    pub fn RSA_size(k: *mut RSA) -> c_int;
+    pub fn RSA_verify(t: c_int, m: *const u8, mlen: c_uint, sig: *const u8, siglen: c_uint,
+                      k: *mut RSA) -> c_int;
+
+    pub fn SSL_library_init() -> c_int;
+
+    pub fn SSL_load_error_strings();
+
+    #[cfg(feature = "sslv2")]
+    pub fn SSLv2_method() -> *const SSL_METHOD;
+    pub fn SSLv3_method() -> *const SSL_METHOD;
+    pub fn TLSv1_method() -> *const SSL_METHOD;
+    #[cfg(feature = "tlsv1_1")]
+    pub fn TLSv1_1_method() -> *const SSL_METHOD;
+    #[cfg(feature = "tlsv1_2")]
+    pub fn TLSv1_2_method() -> *const SSL_METHOD;
+    #[cfg(feature = "dtlsv1")]
+    pub fn DTLSv1_method() -> *const SSL_METHOD;
+    #[cfg(feature = "dtlsv1_2")]
+    pub fn DTLSv1_2_method() -> *const SSL_METHOD;
+    pub fn SSLv23_method() -> *const SSL_METHOD;
+
+    pub fn SSL_new(ctx: *mut SSL_CTX) -> *mut SSL;
+    pub fn SSL_pending(ssl: *const SSL) -> c_int;
+    pub fn SSL_free(ssl: *mut SSL);
+    pub fn SSL_set_bio(ssl: *mut SSL, rbio: *mut BIO, wbio: *mut BIO);
+    pub fn SSL_get_rbio(ssl: *mut SSL) -> *mut BIO;
+    pub fn SSL_get_wbio(ssl: *mut SSL) -> *mut BIO;
+    pub fn SSL_accept(ssl: *mut SSL) -> c_int;
+    pub fn SSL_connect(ssl: *mut SSL) -> c_int;
+    pub fn SSL_ctrl(ssl: *mut SSL, cmd: c_int, larg: c_long,
+                    parg: *mut c_void) -> c_long;
+    pub fn SSL_get_error(ssl: *mut SSL, ret: c_int) -> c_int;
+    pub fn SSL_read(ssl: *mut SSL, buf: *mut c_void, num: c_int) -> c_int;
+    pub fn SSL_write(ssl: *mut SSL, buf: *const c_void, num: c_int) -> c_int;
+    pub fn SSL_get_ex_data_X509_STORE_CTX_idx() -> c_int;
+    pub fn SSL_get_SSL_CTX(ssl: *mut SSL) -> *mut SSL_CTX;
+    pub fn SSL_get_current_compression(ssl: *mut SSL) -> *const COMP_METHOD;
+    pub fn SSL_get_peer_certificate(ssl: *mut SSL) -> *mut X509;
+
+    pub fn SSL_COMP_get_name(comp: *const COMP_METHOD) -> *const c_char;
+
+    pub fn SSL_CTX_new(method: *const SSL_METHOD) -> *mut SSL_CTX;
+    pub fn SSL_CTX_free(ctx: *mut SSL_CTX);
+    pub fn SSL_CTX_set_verify(ctx: *mut SSL_CTX, mode: c_int,
+                              verify_callback: Option<extern fn(c_int, *mut X509_STORE_CTX) -> c_int>);
+    pub fn SSL_CTX_set_verify_depth(ctx: *mut SSL_CTX, depth: c_int);
+    pub fn SSL_CTX_load_verify_locations(ctx: *mut SSL_CTX, CAfile: *const c_char,
+                                         CApath: *const c_char) -> c_int;
+    pub fn SSL_CTX_get_ex_new_index(argl: c_long, argp: *const c_void,
+                                    new_func: Option<CRYPTO_EX_new>,
+                                    dup_func: Option<CRYPTO_EX_dup>,
+                                    free_func: Option<CRYPTO_EX_free>)
+                                    -> c_int;
+    pub fn SSL_CTX_set_ex_data(ctx: *mut SSL_CTX, idx: c_int, data: *mut c_void)
+                               -> c_int;
+    pub fn SSL_CTX_get_ex_data(ctx: *mut SSL_CTX, idx: c_int) -> *mut c_void;
+
+    pub fn SSL_CTX_use_certificate_file(ctx: *mut SSL_CTX, cert_file: *const c_char, file_type: c_int) -> c_int;
+    pub fn SSL_CTX_use_certificate(ctx: *mut SSL_CTX, cert: *mut X509) -> c_int;
+
+    pub fn SSL_CTX_use_PrivateKey_file(ctx: *mut SSL_CTX, key_file: *const c_char, file_type: c_int) -> c_int;
+    pub fn SSL_CTX_use_PrivateKey(ctx: *mut SSL_CTX, key: *mut EVP_PKEY) -> c_int;
+    pub fn SSL_CTX_check_private_key(ctx: *mut SSL_CTX) -> c_int;
+
+    pub fn SSL_CTX_set_cipher_list(ssl: *mut SSL_CTX, s: *const c_char) -> c_int;
+
+    pub fn SSL_CTX_ctrl(ssl: *mut SSL_CTX, cmd: c_int, larg: c_long, parg: *mut c_void) -> c_long;
+    #[cfg(feature = "npn")]
+    pub fn SSL_CTX_set_next_protos_advertised_cb(ssl: *mut SSL_CTX,
+                                                 cb: extern "C" fn(ssl: *mut SSL,
+                                                                   out: *mut *const c_uchar,
+                                                                   outlen: *mut c_uint,
+                                                                   arg: *mut c_void) -> c_int,
+                                                 arg: *mut c_void);
+    #[cfg(feature = "npn")]
+    pub fn SSL_CTX_set_next_proto_select_cb(ssl: *mut SSL_CTX,
+                                            cb: extern "C" fn(ssl: *mut SSL,
+                                                              out: *mut *mut c_uchar,
+                                                              outlen: *mut c_uchar,
+                                                              inbuf: *const c_uchar,
+                                                              inlen: c_uint,
+                                                              arg: *mut c_void) -> c_int,
+                                            arg: *mut c_void);
+    #[cfg(feature = "npn")]
+    pub fn SSL_select_next_proto(out: *mut *mut c_uchar, outlen: *mut c_uchar,
+                                 inbuf: *const c_uchar, inlen: c_uint,
+                                 client: *const c_uchar, client_len: c_uint) -> c_int;
+    #[cfg(feature = "npn")]
+    pub fn SSL_get0_next_proto_negotiated(s: *const SSL, data: *mut *const c_uchar, len: *mut c_uint);
+
+    pub fn X509_add_ext(x: *mut X509, ext: *mut X509_EXTENSION, loc: c_int) -> c_int;
+    pub fn X509_digest(x: *mut X509, digest: *const EVP_MD, buf: *mut c_char, len: *mut c_uint) -> c_int;
+    pub fn X509_free(x: *mut X509);
+    pub fn X509_REQ_free(x: *mut X509_REQ);
+    pub fn X509_get_serialNumber(x: *mut X509) -> *mut ASN1_INTEGER;
+    pub fn X509_get_subject_name(x: *mut X509) -> *mut X509_NAME;
+    pub fn X509_gmtime_adj(time: *mut ASN1_TIME, adj: c_long) -> *mut ASN1_TIME;
+    pub fn X509_new() -> *mut X509;
+    pub fn X509_set_issuer_name(x: *mut X509, name: *mut X509_NAME) -> c_int;
+    pub fn X509_set_notAfter(x: *mut X509, tm: *const ASN1_TIME) -> c_int;
+    pub fn X509_set_notBefore(x: *mut X509, tm: *const ASN1_TIME) -> c_int;
+    pub fn X509_set_version(x: *mut X509, version: c_ulong) -> c_int;
+    pub fn X509_set_pubkey(x: *mut X509, pkey: *mut EVP_PKEY) -> c_int;
+    pub fn X509_sign(x: *mut X509, pkey: *mut EVP_PKEY, md: *const EVP_MD) -> c_int;
+    pub fn X509_get_pubkey(x: *mut X509) -> *mut EVP_PKEY;
+    pub fn X509_to_X509_REQ(x: *mut X509, pkey: *mut EVP_PKEY, md: *const EVP_MD) -> *mut X509_REQ;
+
+    pub fn X509_EXTENSION_free(ext: *mut X509_EXTENSION);
+
+    pub fn X509_NAME_add_entry_by_txt(x: *mut X509, field: *const c_char, ty: c_int, bytes: *const c_char, len: c_int, loc: c_int, set: c_int) -> c_int;
+    pub fn X509_NAME_get_index_by_NID(n: *mut X509_NAME, nid: c_int, last_pos: c_int) ->c_int;
+    pub fn X509_NAME_get_entry(n: *mut X509_NAME, loc: c_int) -> *mut X509_NAME_ENTRY;
+    pub fn X509_NAME_ENTRY_get_data(ne: *mut X509_NAME_ENTRY) -> *mut ASN1_STRING;
+
+    pub fn ASN1_STRING_to_UTF8(out: *mut *mut c_char, s: *mut ASN1_STRING) -> c_int;
+
+    pub fn X509_STORE_CTX_get_current_cert(ct: *mut X509_STORE_CTX) -> *mut X509;
+    pub fn X509_STORE_CTX_get_error(ctx: *mut X509_STORE_CTX) -> c_int;
+    pub fn X509_STORE_CTX_get_ex_data(ctx: *mut X509_STORE_CTX, idx: c_int) -> *mut c_void;
+
+    pub fn X509V3_EXT_conf_nid(conf: *mut c_void, ctx: *mut X509V3_CTX, ext_nid: c_int, value: *mut c_char) -> *mut X509_EXTENSION;
+    pub fn X509V3_set_ctx(ctx: *mut X509V3_CTX, issuer: *mut X509, subject: *mut X509, req: *mut X509_REQ, crl: *mut X509_CRL, flags: c_int);
+
+    pub fn i2d_RSA_PUBKEY(k: *mut RSA, buf: *const *mut u8) -> c_int;
+    pub fn d2i_RSA_PUBKEY(k: *const *mut RSA, buf: *const *const u8, len: c_uint) -> *mut RSA;
+    pub fn i2d_RSAPrivateKey(k: *mut RSA, buf: *const *mut u8) -> c_int;
+    pub fn d2i_RSAPrivateKey(k: *const *mut RSA, buf: *const *const u8, len: c_uint) -> *mut RSA;
+}
+
+pub mod probe;
+

+

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