Adding upstream version 0.70.1+ds1.upstream/0.70.1+ds1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

61 files changed, 9387 insertions, 0 deletions

diff --git a/vendor/openssl-sys/src/aes.rs b/vendor/openssl-sys/src/aes.rs
new file mode 100644
index 0000000..ade6e84
--- /dev/null
+++ b/vendor/openssl-sys/src/aes.rs
@@ -0,0 +1,7 @@
+use libc::*;
+
+pub const AES_ENCRYPT: c_int = 1;
+pub const AES_DECRYPT: c_int = 0;
+
+pub const AES_MAXNR: c_int = 14;
+pub const AES_BLOCK_SIZE: c_int = 16;
diff --git a/vendor/openssl-sys/src/asn1.rs b/vendor/openssl-sys/src/asn1.rs
new file mode 100644
index 0000000..caf14f7
--- /dev/null
+++ b/vendor/openssl-sys/src/asn1.rs
@@ -0,0 +1,39 @@
+use libc::*;
+
+use super::*;
+
+// ASN.1 tag values
+pub const V_ASN1_EOC: c_int = 0;
+pub const V_ASN1_BOOLEAN: c_int = 1;
+pub const V_ASN1_INTEGER: c_int = 2;
+pub const V_ASN1_BIT_STRING: c_int = 3;
+pub const V_ASN1_OCTET_STRING: c_int = 4;
+pub const V_ASN1_NULL: c_int = 5;
+pub const V_ASN1_OBJECT: c_int = 6;
+pub const V_ASN1_OBJECT_DESCRIPTOR: c_int = 7;
+pub const V_ASN1_EXTERNAL: c_int = 8;
+pub const V_ASN1_REAL: c_int = 9;
+pub const V_ASN1_ENUMERATED: c_int = 10;
+pub const V_ASN1_UTF8STRING: c_int = 12;
+pub const V_ASN1_SEQUENCE: c_int = 16;
+pub const V_ASN1_SET: c_int = 17;
+pub const V_ASN1_NUMERICSTRING: c_int = 18;
+pub const V_ASN1_PRINTABLESTRING: c_int = 19;
+pub const V_ASN1_T61STRING: c_int = 20;
+pub const V_ASN1_TELETEXSTRING: c_int = 20; // alias
+pub const V_ASN1_VIDEOTEXSTRING: c_int = 21;
+pub const V_ASN1_IA5STRING: c_int = 22;
+pub const V_ASN1_UTCTIME: c_int = 23;
+pub const V_ASN1_GENERALIZEDTIME: c_int = 24;
+pub const V_ASN1_GRAPHICSTRING: c_int = 25;
+pub const V_ASN1_ISO64STRING: c_int = 26;
+pub const V_ASN1_VISIBLESTRING: c_int = 26; // alias
+pub const V_ASN1_GENERALSTRING: c_int = 27;
+pub const V_ASN1_UNIVERSALSTRING: c_int = 28;
+pub const V_ASN1_BMPSTRING: c_int = 30;
+
+pub const MBSTRING_FLAG: c_int = 0x1000;
+pub const MBSTRING_UTF8: c_int = MBSTRING_FLAG;
+pub const MBSTRING_ASC: c_int = MBSTRING_FLAG | 1;
+pub const MBSTRING_BMP: c_int = MBSTRING_FLAG | 2;
+pub const MBSTRING_UNIV: c_int = MBSTRING_FLAG | 4;
diff --git a/vendor/openssl-sys/src/bio.rs b/vendor/openssl-sys/src/bio.rs
new file mode 100644
index 0000000..ea6053b
--- /dev/null
+++ b/vendor/openssl-sys/src/bio.rs
@@ -0,0 +1,72 @@
+use libc::*;
+
+use super::*;
+
+pub const BIO_TYPE_NONE: c_int = 0;
+
+pub const BIO_CTRL_EOF: c_int = 2;
+pub const BIO_CTRL_INFO: c_int = 3;
+pub const BIO_CTRL_FLUSH: c_int = 11;
+pub const BIO_CTRL_DGRAM_QUERY_MTU: c_int = 40;
+pub const BIO_C_SET_BUF_MEM_EOF_RETURN: c_int = 130;
+
+pub unsafe fn BIO_set_retry_read(b: *mut BIO) {
+    BIO_set_flags(b, BIO_FLAGS_READ | BIO_FLAGS_SHOULD_RETRY)
+}
+
+pub unsafe fn BIO_set_retry_write(b: *mut BIO) {
+    BIO_set_flags(b, BIO_FLAGS_WRITE | BIO_FLAGS_SHOULD_RETRY)
+}
+
+pub unsafe fn BIO_clear_retry_flags(b: *mut BIO) {
+    BIO_clear_flags(b, BIO_FLAGS_RWS | BIO_FLAGS_SHOULD_RETRY)
+}
+
+pub const BIO_FLAGS_READ: c_int = 0x01;
+pub const BIO_FLAGS_WRITE: c_int = 0x02;
+pub const BIO_FLAGS_IO_SPECIAL: c_int = 0x04;
+pub const BIO_FLAGS_RWS: c_int = BIO_FLAGS_READ | BIO_FLAGS_WRITE | BIO_FLAGS_IO_SPECIAL;
+pub const BIO_FLAGS_SHOULD_RETRY: c_int = 0x08;
+
+pub unsafe fn BIO_get_mem_data(b: *mut BIO, pp: *mut *mut c_char) -> c_long {
+    BIO_ctrl(b, BIO_CTRL_INFO, 0, pp as *mut c_void)
+}
+
+extern "C" {
+    #[deprecated(note = "use BIO_meth_set_write__fixed_rust instead")]
+    #[cfg(any(ossl110, libressl273))]
+    pub fn BIO_meth_set_write(
+        biom: *mut BIO_METHOD,
+        write: unsafe extern "C" fn(*mut BIO, *const c_char, c_int) -> c_int,
+    ) -> c_int;
+    #[deprecated(note = "use BIO_meth_set_read__fixed_rust instead")]
+    #[cfg(any(ossl110, libressl273))]
+    pub fn BIO_meth_set_read(
+        biom: *mut BIO_METHOD,
+        read: unsafe extern "C" fn(*mut BIO, *mut c_char, c_int) -> c_int,
+    ) -> c_int;
+    #[deprecated(note = "use BIO_meth_set_puts__fixed_rust instead")]
+    #[cfg(any(ossl110, libressl273))]
+    pub fn BIO_meth_set_puts(
+        biom: *mut BIO_METHOD,
+        read: unsafe extern "C" fn(*mut BIO, *const c_char) -> c_int,
+    ) -> c_int;
+    #[deprecated(note = "use BIO_meth_set_ctrl__fixed_rust instead")]
+    #[cfg(any(ossl110, libressl273))]
+    pub fn BIO_meth_set_ctrl(
+        biom: *mut BIO_METHOD,
+        read: unsafe extern "C" fn(*mut BIO, c_int, c_long, *mut c_void) -> c_long,
+    ) -> c_int;
+    #[deprecated(note = "use BIO_meth_set_create__fixed_rust instead")]
+    #[cfg(any(ossl110, libressl273))]
+    pub fn BIO_meth_set_create(
+        biom: *mut BIO_METHOD,
+        create: unsafe extern "C" fn(*mut BIO) -> c_int,
+    ) -> c_int;
+    #[deprecated(note = "use BIO_meth_set_destroy__fixed_rust instead")]
+    #[cfg(any(ossl110, libressl273))]
+    pub fn BIO_meth_set_destroy(
+        biom: *mut BIO_METHOD,
+        destroy: unsafe extern "C" fn(*mut BIO) -> c_int,
+    ) -> c_int;
+}
diff --git a/vendor/openssl-sys/src/bn.rs b/vendor/openssl-sys/src/bn.rs
new file mode 100644
index 0000000..a6bbcce
--- /dev/null
+++ b/vendor/openssl-sys/src/bn.rs
@@ -0,0 +1,15 @@
+use libc::*;
+
+#[cfg(target_pointer_width = "64")]
+pub type BN_ULONG = c_ulonglong;
+#[cfg(target_pointer_width = "32")]
+pub type BN_ULONG = c_uint;
+
+#[cfg(ossl110)]
+pub const BN_FLG_MALLOCED: c_int = 0x01;
+#[cfg(ossl110)]
+pub const BN_FLG_STATIC_DATA: c_int = 0x02;
+#[cfg(ossl110)]
+pub const BN_FLG_CONSTTIME: c_int = 0x04;
+#[cfg(ossl110)]
+pub const BN_FLG_SECURE: c_int = 0x08;
diff --git a/vendor/openssl-sys/src/cms.rs b/vendor/openssl-sys/src/cms.rs
new file mode 100644
index 0000000..f008adb
--- /dev/null
+++ b/vendor/openssl-sys/src/cms.rs
@@ -0,0 +1,46 @@
+use libc::*;
+
+#[cfg(ossl101)]
+pub const CMS_TEXT: c_uint = 0x1;
+#[cfg(ossl101)]
+pub const CMS_NOCERTS: c_uint = 0x2;
+#[cfg(ossl101)]
+pub const CMS_NO_CONTENT_VERIFY: c_uint = 0x4;
+#[cfg(ossl101)]
+pub const CMS_NO_ATTR_VERIFY: c_uint = 0x8;
+#[cfg(ossl101)]
+pub const CMS_NOSIGS: c_uint = 0x4 | 0x8;
+#[cfg(ossl101)]
+pub const CMS_NOINTERN: c_uint = 0x10;
+#[cfg(ossl101)]
+pub const CMS_NO_SIGNER_CERT_VERIFY: c_uint = 0x20;
+#[cfg(ossl101)]
+pub const CMS_NOVERIFY: c_uint = 0x20;
+#[cfg(ossl101)]
+pub const CMS_DETACHED: c_uint = 0x40;
+#[cfg(ossl101)]
+pub const CMS_BINARY: c_uint = 0x80;
+#[cfg(ossl101)]
+pub const CMS_NOATTR: c_uint = 0x100;
+#[cfg(ossl101)]
+pub const CMS_NOSMIMECAP: c_uint = 0x200;
+#[cfg(ossl101)]
+pub const CMS_NOOLDMIMETYPE: c_uint = 0x400;
+#[cfg(ossl101)]
+pub const CMS_CRLFEOL: c_uint = 0x800;
+#[cfg(ossl101)]
+pub const CMS_STREAM: c_uint = 0x1000;
+#[cfg(ossl101)]
+pub const CMS_NOCRL: c_uint = 0x2000;
+#[cfg(ossl101)]
+pub const CMS_PARTIAL: c_uint = 0x4000;
+#[cfg(ossl101)]
+pub const CMS_REUSE_DIGEST: c_uint = 0x8000;
+#[cfg(ossl101)]
+pub const CMS_USE_KEYID: c_uint = 0x10000;
+#[cfg(ossl101)]
+pub const CMS_DEBUG_DECRYPT: c_uint = 0x20000;
+#[cfg(ossl102)]
+pub const CMS_KEY_PARAM: c_uint = 0x40000;
+#[cfg(ossl110)]
+pub const CMS_ASCIICRLF: c_uint = 0x80000;
diff --git a/vendor/openssl-sys/src/crypto.rs b/vendor/openssl-sys/src/crypto.rs
new file mode 100644
index 0000000..bdc0add
--- /dev/null
+++ b/vendor/openssl-sys/src/crypto.rs
@@ -0,0 +1,134 @@
+use super::*;
+use libc::*;
+
+extern "C" {
+    #[deprecated(note = "use CRYPTO_set_locking_callback__fixed_rust instead")]
+    #[cfg(not(ossl110))]
+    pub fn CRYPTO_set_locking_callback(
+        func: unsafe extern "C" fn(mode: c_int, n: c_int, file: *const c_char, line: c_int),
+    );
+
+    #[deprecated(note = "use CRYPTO_set_id_callback__fixed_rust instead")]
+    #[cfg(not(ossl110))]
+    pub fn CRYPTO_set_id_callback(func: unsafe extern "C" fn() -> c_ulong);
+}
+
+cfg_if! {
+    if #[cfg(ossl110)] {
+        type CRYPTO_EX_new_ret = ();
+        type CRYPTO_EX_dup_from = *const CRYPTO_EX_DATA;
+    } else {
+        type CRYPTO_EX_new_ret = c_int;
+        type CRYPTO_EX_dup_from = *mut CRYPTO_EX_DATA;
+    }
+}
+
+cfg_if! {
+    if #[cfg(ossl300)] {
+        type CRYPTO_EX_dup_from_d = *mut *mut c_void;
+    } else {
+        type CRYPTO_EX_dup_from_d = *mut c_void;
+    }
+}
+
+// FIXME should be options
+pub type CRYPTO_EX_new = unsafe 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,
+) -> CRYPTO_EX_new_ret;
+pub type CRYPTO_EX_dup = unsafe extern "C" fn(
+    to: *mut CRYPTO_EX_DATA,
+    from: CRYPTO_EX_dup_from,
+    from_d: CRYPTO_EX_dup_from_d,
+    idx: c_int,
+    argl: c_long,
+    argp: *mut c_void,
+) -> c_int;
+pub type CRYPTO_EX_free = unsafe 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,
+);
+
+#[cfg(ossl110)]
+#[inline]
+#[track_caller]
+pub unsafe fn OPENSSL_malloc(num: usize) -> *mut c_void {
+    CRYPTO_malloc(
+        num,
+        concat!(file!(), "\0").as_ptr() as *const _,
+        line!() as _,
+    )
+}
+
+#[cfg(not(ossl110))]
+#[inline]
+#[track_caller]
+pub unsafe fn OPENSSL_malloc(num: c_int) -> *mut c_void {
+    CRYPTO_malloc(
+        num,
+        concat!(file!(), "\0").as_ptr() as *const _,
+        line!() as _,
+    )
+}
+
+#[cfg(ossl110)]
+#[inline]
+#[track_caller]
+pub unsafe fn OPENSSL_free(addr: *mut c_void) {
+    CRYPTO_free(
+        addr,
+        concat!(file!(), "\0").as_ptr() as *const _,
+        line!() as _,
+    )
+}
+
+#[cfg(not(ossl110))]
+#[inline]
+pub unsafe fn OPENSSL_free(addr: *mut c_void) {
+    CRYPTO_free(addr)
+}
+
+#[cfg(not(ossl110))]
+pub const CRYPTO_LOCK_X509: c_int = 3;
+#[cfg(not(ossl110))]
+pub const CRYPTO_LOCK_EVP_PKEY: c_int = 10;
+#[cfg(not(ossl110))]
+pub const CRYPTO_LOCK_SSL_CTX: c_int = 12;
+#[cfg(not(ossl110))]
+pub const CRYPTO_LOCK_SSL_SESSION: c_int = 14;
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl381))] {
+        pub const CRYPTO_EX_INDEX_SSL: c_int = 0;
+        pub const CRYPTO_EX_INDEX_SSL_CTX: c_int = 1;
+    } else if #[cfg(libressl)] {
+        pub const CRYPTO_EX_INDEX_SSL: c_int = 1;
+        pub const CRYPTO_EX_INDEX_SSL_CTX: c_int = 2;
+    }
+}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl271))] {
+        pub const OPENSSL_VERSION: c_int = 0;
+        pub const OPENSSL_CFLAGS: c_int = 1;
+        pub const OPENSSL_BUILT_ON: c_int = 2;
+        pub const OPENSSL_PLATFORM: c_int = 3;
+        pub const OPENSSL_DIR: c_int = 4;
+    } else {
+        pub const SSLEAY_VERSION: c_int = 0;
+        pub const SSLEAY_CFLAGS: c_int = 2;
+        pub const SSLEAY_BUILT_ON: c_int = 3;
+        pub const SSLEAY_PLATFORM: c_int = 4;
+        pub const SSLEAY_DIR: c_int = 5;
+    }
+}
+
+pub const CRYPTO_LOCK: c_int = 1;
diff --git a/vendor/openssl-sys/src/dtls1.rs b/vendor/openssl-sys/src/dtls1.rs
new file mode 100644
index 0000000..9ef5e77
--- /dev/null
+++ b/vendor/openssl-sys/src/dtls1.rs
@@ -0,0 +1,9 @@
+use libc::*;
+
+cfg_if! {
+    if #[cfg(ossl300)] {
+        pub const DTLS1_COOKIE_LENGTH: c_uint = 255;
+    } else {
+        pub const DTLS1_COOKIE_LENGTH: c_uint = 256;
+    }
+}
diff --git a/vendor/openssl-sys/src/ec.rs b/vendor/openssl-sys/src/ec.rs
new file mode 100644
index 0000000..995a84f
--- /dev/null
+++ b/vendor/openssl-sys/src/ec.rs
@@ -0,0 +1,16 @@
+use libc::*;
+use std::ptr;
+
+use super::*;
+
+pub const OPENSSL_EC_NAMED_CURVE: c_int = 1;
+
+#[cfg(ossl300)]
+pub unsafe fn EVP_EC_gen(curve: *const c_char) -> *mut EVP_PKEY {
+    EVP_PKEY_Q_keygen(
+        ptr::null_mut(),
+        ptr::null_mut(),
+        "EC\0".as_ptr().cast(),
+        curve,
+    )
+}
diff --git a/vendor/openssl-sys/src/err.rs b/vendor/openssl-sys/src/err.rs
new file mode 100644
index 0000000..4a6a277
--- /dev/null
+++ b/vendor/openssl-sys/src/err.rs
@@ -0,0 +1,66 @@
+use libc::*;
+
+pub const ERR_TXT_MALLOCED: c_int = 0x01;
+pub const ERR_TXT_STRING: c_int = 0x02;
+
+pub const ERR_LIB_SYS: c_int = 2;
+pub const ERR_LIB_PEM: c_int = 9;
+pub const ERR_LIB_ASN1: c_int = 13;
+
+cfg_if! {
+    if #[cfg(ossl300)] {
+        pub const ERR_SYSTEM_FLAG: c_ulong = c_int::max_value() as c_ulong + 1;
+        pub const ERR_SYSTEM_MASK: c_ulong = c_int::max_value() as c_ulong;
+
+        pub const ERR_LIB_OFFSET: c_ulong = 23;
+        pub const ERR_LIB_MASK: c_ulong = 0xff;
+        pub const ERR_RFLAGS_OFFSET: c_ulong = 18;
+        pub const ERR_RFLAGS_MASK: c_ulong = 0x1f;
+        pub const ERR_REASON_MASK: c_ulong = 0x7FFFFF;
+
+        pub const ERR_RFLAG_FATAL: c_ulong = 0x1 << ERR_RFLAGS_OFFSET;
+
+        pub const fn ERR_SYSTEM_ERROR(errcode: c_ulong) -> bool {
+            errcode & ERR_SYSTEM_FLAG != 0
+        }
+
+        pub const fn ERR_GET_LIB(errcode: c_ulong) -> c_int {
+            // hacks since `if` isn't yet stable in const functions :(
+            ((ERR_LIB_SYS as c_ulong * (ERR_SYSTEM_ERROR(errcode) as c_ulong)) |
+            (((errcode >> ERR_LIB_OFFSET) & ERR_LIB_MASK) * (!ERR_SYSTEM_ERROR(errcode) as c_ulong))) as c_int
+        }
+
+        pub const fn ERR_GET_FUNC(_errcode: c_ulong) -> c_int {
+            0
+        }
+
+        pub const fn ERR_GET_REASON(errcode: c_ulong) -> c_int {
+            // hacks since `if` isn't yet stable in const functions :(
+            ((ERR_LIB_SYS as c_ulong * (ERR_SYSTEM_ERROR(errcode) as c_ulong)) |
+            ((errcode & ERR_REASON_MASK) * (!ERR_SYSTEM_ERROR(errcode) as c_ulong))) as c_int
+        }
+
+        pub const fn ERR_PACK(lib: c_int, _func: c_int, reason: c_int) -> c_ulong {
+            ((lib as c_ulong & ERR_LIB_MASK) << ERR_LIB_OFFSET) |
+            (reason as c_ulong & ERR_REASON_MASK)
+        }
+    } else {
+        pub const fn ERR_PACK(l: c_int, f: c_int, r: c_int) -> c_ulong {
+            ((l as c_ulong & 0x0FF) << 24) |
+            ((f as c_ulong & 0xFFF) << 12) |
+            (r as c_ulong & 0xFFF)
+        }
+
+        pub const fn ERR_GET_LIB(l: c_ulong) -> c_int {
+            ((l >> 24) & 0x0FF) as c_int
+        }
+
+        pub const fn ERR_GET_FUNC(l: c_ulong) -> c_int {
+            ((l >> 12) & 0xFFF) as c_int
+        }
+
+        pub const fn ERR_GET_REASON(l: c_ulong) -> c_int {
+            (l & 0xFFF) as c_int
+        }
+    }
+}
diff --git a/vendor/openssl-sys/src/evp.rs b/vendor/openssl-sys/src/evp.rs
new file mode 100644
index 0000000..d2ca215
--- /dev/null
+++ b/vendor/openssl-sys/src/evp.rs
@@ -0,0 +1,322 @@
+use super::*;
+use libc::*;
+
+pub const EVP_MAX_MD_SIZE: c_uint = 64;
+
+pub const PKCS5_SALT_LEN: c_int = 8;
+pub const PKCS12_DEFAULT_ITER: c_int = 2048;
+
+pub const EVP_PKEY_RSA: c_int = NID_rsaEncryption;
+pub const EVP_PKEY_DSA: c_int = NID_dsa;
+pub const EVP_PKEY_DH: c_int = NID_dhKeyAgreement;
+pub const EVP_PKEY_EC: c_int = NID_X9_62_id_ecPublicKey;
+#[cfg(ossl111)]
+pub const EVP_PKEY_SM2: c_int = NID_sm2;
+#[cfg(any(ossl111, libressl370))]
+pub const EVP_PKEY_X25519: c_int = NID_X25519;
+#[cfg(any(ossl111, libressl370))]
+pub const EVP_PKEY_ED25519: c_int = NID_ED25519;
+#[cfg(ossl111)]
+pub const EVP_PKEY_X448: c_int = NID_X448;
+#[cfg(ossl111)]
+pub const EVP_PKEY_ED448: c_int = NID_ED448;
+pub const EVP_PKEY_HMAC: c_int = NID_hmac;
+pub const EVP_PKEY_CMAC: c_int = NID_cmac;
+#[cfg(ossl111)]
+pub const EVP_PKEY_POLY1305: c_int = NID_poly1305;
+#[cfg(ossl110)]
+pub const EVP_PKEY_HKDF: c_int = NID_hkdf;
+
+#[cfg(ossl102)]
+pub const EVP_CIPHER_CTX_FLAG_WRAP_ALLOW: c_int = 0x1;
+
+pub const EVP_CTRL_GCM_SET_IVLEN: c_int = 0x9;
+pub const EVP_CTRL_GCM_GET_TAG: c_int = 0x10;
+pub const EVP_CTRL_GCM_SET_TAG: c_int = 0x11;
+
+pub unsafe fn EVP_get_digestbynid(type_: c_int) -> *const EVP_MD {
+    EVP_get_digestbyname(OBJ_nid2sn(type_))
+}
+
+cfg_if! {
+    if #[cfg(ossl300)] {
+        #[inline]
+        pub unsafe fn EVP_MD_CTX_md(ctx: *const EVP_MD_CTX) -> *const EVP_MD {
+            EVP_MD_CTX_get0_md(ctx)
+        }
+
+        #[inline]
+        pub unsafe fn EVP_MD_CTX_get_size(ctx: *const EVP_MD_CTX) -> c_int {
+            EVP_MD_get_size(EVP_MD_CTX_get0_md(ctx))
+        }
+
+        #[inline]
+        pub unsafe fn EVP_MD_CTX_size(ctx: *const EVP_MD_CTX) -> c_int {
+            EVP_MD_CTX_get_size(ctx)
+        }
+
+        #[inline]
+        pub unsafe fn EVP_MD_block_size(md: *const EVP_MD) -> c_int {
+            EVP_MD_get_block_size(md)
+        }
+
+        #[inline]
+        pub unsafe fn EVP_MD_size(md: *const EVP_MD) -> c_int {
+            EVP_MD_get_size(md)
+        }
+
+        #[inline]
+        pub unsafe fn EVP_MD_type(md: *const EVP_MD) -> c_int {
+            EVP_MD_get_type(md)
+        }
+
+        #[inline]
+        pub unsafe fn EVP_CIPHER_key_length(cipher: *const EVP_CIPHER) -> c_int {
+            EVP_CIPHER_get_key_length(cipher)
+        }
+
+        #[inline]
+        pub unsafe fn EVP_CIPHER_block_size(cipher: *const EVP_CIPHER) -> c_int {
+            EVP_CIPHER_get_block_size(cipher)
+        }
+
+        #[inline]
+        pub unsafe fn EVP_CIPHER_iv_length(cipher: *const EVP_CIPHER) -> c_int {
+            EVP_CIPHER_get_iv_length(cipher)
+        }
+
+        #[inline]
+        pub unsafe fn EVP_CIPHER_nid(cipher: *const EVP_CIPHER) -> c_int {
+            EVP_CIPHER_get_nid(cipher)
+        }
+
+        #[inline]
+        pub unsafe fn EVP_CIPHER_CTX_block_size(ctx: *const EVP_CIPHER_CTX) -> c_int {
+            EVP_CIPHER_CTX_get_block_size(ctx)
+        }
+
+        #[inline]
+        pub unsafe fn EVP_CIPHER_CTX_key_length(ctx: *const EVP_CIPHER_CTX) -> c_int {
+            EVP_CIPHER_CTX_get_key_length(ctx)
+        }
+
+        #[inline]
+        pub unsafe fn EVP_CIPHER_CTX_iv_length(ctx: *const EVP_CIPHER_CTX) -> c_int {
+            EVP_CIPHER_CTX_get_iv_length(ctx)
+        }
+
+        #[inline]
+        pub unsafe fn EVP_CIPHER_CTX_num(ctx: *const EVP_CIPHER_CTX) -> c_int {
+            EVP_CIPHER_CTX_get_num(ctx)
+        }
+    } else {
+        pub unsafe fn EVP_MD_CTX_size(ctx: *const EVP_MD_CTX) -> c_int {
+            EVP_MD_size(EVP_MD_CTX_md(ctx))
+        }
+    }
+}
+#[cfg(not(ossl300))]
+#[inline]
+pub unsafe fn EVP_DigestSignUpdate(
+    ctx: *mut EVP_MD_CTX,
+    data: *const c_void,
+    dsize: size_t,
+) -> c_int {
+    EVP_DigestUpdate(ctx, data, dsize)
+}
+#[cfg(not(ossl300))]
+#[inline]
+pub unsafe fn EVP_DigestVerifyUpdate(
+    ctx: *mut EVP_MD_CTX,
+    data: *const c_void,
+    dsize: size_t,
+) -> c_int {
+    EVP_DigestUpdate(ctx, data, dsize)
+}
+#[cfg(ossl300)]
+#[inline]
+pub unsafe fn EVP_PKEY_size(pkey: *const EVP_PKEY) -> c_int {
+    EVP_PKEY_get_size(pkey)
+}
+
+cfg_if! {
+    if #[cfg(ossl300)] {
+        #[inline]
+        pub unsafe fn EVP_PKEY_id(pkey: *const EVP_PKEY) -> c_int {
+            EVP_PKEY_get_id(pkey)
+        }
+
+        #[inline]
+        pub unsafe fn EVP_PKEY_bits(pkey: *const EVP_PKEY) -> c_int {
+            EVP_PKEY_get_bits(pkey)
+        }
+
+        #[inline]
+        pub unsafe fn EVP_PKEY_security_bits(pkey: *const EVP_PKEY) -> c_int {
+            EVP_PKEY_get_security_bits(pkey)
+        }
+    }
+}
+
+pub const EVP_PKEY_OP_KEYGEN: c_int = 1 << 2;
+cfg_if! {
+    if #[cfg(ossl300)] {
+        pub const EVP_PKEY_OP_SIGN: c_int = 1 << 4;
+        pub const EVP_PKEY_OP_VERIFY: c_int = 1 << 5;
+        pub const EVP_PKEY_OP_VERIFYRECOVER: c_int = 1 << 6;
+        pub const EVP_PKEY_OP_SIGNCTX: c_int = 1 << 7;
+        pub const EVP_PKEY_OP_VERIFYCTX: c_int = 1 << 8;
+        pub const EVP_PKEY_OP_ENCRYPT: c_int = 1 << 9;
+        pub const EVP_PKEY_OP_DECRYPT: c_int = 1 << 10;
+        pub const EVP_PKEY_OP_DERIVE: c_int = 1 << 11;
+    } else {
+        pub const EVP_PKEY_OP_SIGN: c_int = 1 << 3;
+        pub const EVP_PKEY_OP_VERIFY: c_int = 1 << 4;
+        pub const EVP_PKEY_OP_VERIFYRECOVER: c_int = 1 << 5;
+        pub const EVP_PKEY_OP_SIGNCTX: c_int = 1 << 6;
+        pub const EVP_PKEY_OP_VERIFYCTX: c_int = 1 << 7;
+        pub const EVP_PKEY_OP_ENCRYPT: c_int = 1 << 8;
+        pub const EVP_PKEY_OP_DECRYPT: c_int = 1 << 9;
+        pub const EVP_PKEY_OP_DERIVE: c_int = 1 << 10;
+    }
+}
+
+pub const EVP_PKEY_OP_TYPE_SIG: c_int = EVP_PKEY_OP_SIGN
+    | EVP_PKEY_OP_VERIFY
+    | EVP_PKEY_OP_VERIFYRECOVER
+    | EVP_PKEY_OP_SIGNCTX
+    | EVP_PKEY_OP_VERIFYCTX;
+
+pub const EVP_PKEY_OP_TYPE_CRYPT: c_int = EVP_PKEY_OP_ENCRYPT | EVP_PKEY_OP_DECRYPT;
+
+pub const EVP_PKEY_CTRL_MD: c_int = 1;
+
+pub const EVP_PKEY_CTRL_SET_MAC_KEY: c_int = 6;
+
+pub const EVP_PKEY_CTRL_CIPHER: c_int = 12;
+
+pub const EVP_PKEY_ALG_CTRL: c_int = 0x1000;
+
+#[cfg(ossl111)]
+pub const EVP_PKEY_HKDEF_MODE_EXTRACT_AND_EXPAND: c_int = 0;
+
+#[cfg(ossl111)]
+pub const EVP_PKEY_HKDEF_MODE_EXTRACT_ONLY: c_int = 1;
+
+#[cfg(ossl111)]
+pub const EVP_PKEY_HKDEF_MODE_EXPAND_ONLY: c_int = 2;
+
+#[cfg(ossl110)]
+pub const EVP_PKEY_CTRL_HKDF_MD: c_int = EVP_PKEY_ALG_CTRL + 3;
+
+#[cfg(ossl110)]
+pub const EVP_PKEY_CTRL_HKDF_SALT: c_int = EVP_PKEY_ALG_CTRL + 4;
+
+#[cfg(ossl110)]
+pub const EVP_PKEY_CTRL_HKDF_KEY: c_int = EVP_PKEY_ALG_CTRL + 5;
+
+#[cfg(ossl110)]
+pub const EVP_PKEY_CTRL_HKDF_INFO: c_int = EVP_PKEY_ALG_CTRL + 6;
+
+#[cfg(ossl111)]
+pub const EVP_PKEY_CTRL_HKDF_MODE: c_int = EVP_PKEY_ALG_CTRL + 7;
+
+#[cfg(all(ossl111, not(ossl300)))]
+pub unsafe fn EVP_PKEY_CTX_set_hkdf_mode(ctx: *mut EVP_PKEY_CTX, mode: c_int) -> c_int {
+    EVP_PKEY_CTX_ctrl(
+        ctx,
+        -1,
+        EVP_PKEY_OP_DERIVE,
+        EVP_PKEY_CTRL_HKDF_MODE,
+        mode,
+        std::ptr::null_mut(),
+    )
+}
+
+#[cfg(all(ossl110, not(ossl300)))]
+pub unsafe fn EVP_PKEY_CTX_set_hkdf_md(ctx: *mut EVP_PKEY_CTX, md: *const EVP_MD) -> c_int {
+    EVP_PKEY_CTX_ctrl(
+        ctx,
+        -1,
+        EVP_PKEY_OP_DERIVE,
+        EVP_PKEY_CTRL_HKDF_MD,
+        0,
+        md as *mut c_void,
+    )
+}
+
+#[cfg(all(ossl110, not(ossl300)))]
+pub unsafe fn EVP_PKEY_CTX_set1_hkdf_salt(
+    ctx: *mut EVP_PKEY_CTX,
+    salt: *const u8,
+    saltlen: c_int,
+) -> c_int {
+    EVP_PKEY_CTX_ctrl(
+        ctx,
+        -1,
+        EVP_PKEY_OP_DERIVE,
+        EVP_PKEY_CTRL_HKDF_SALT,
+        saltlen,
+        salt as *mut c_void,
+    )
+}
+
+#[cfg(all(ossl110, not(ossl300)))]
+pub unsafe fn EVP_PKEY_CTX_set1_hkdf_key(
+    ctx: *mut EVP_PKEY_CTX,
+    key: *const u8,
+    keylen: c_int,
+) -> c_int {
+    EVP_PKEY_CTX_ctrl(
+        ctx,
+        -1,
+        EVP_PKEY_OP_DERIVE,
+        EVP_PKEY_CTRL_HKDF_KEY,
+        keylen,
+        key as *mut c_void,
+    )
+}
+
+#[cfg(all(ossl110, not(ossl300)))]
+pub unsafe fn EVP_PKEY_CTX_add1_hkdf_info(
+    ctx: *mut EVP_PKEY_CTX,
+    info: *const u8,
+    infolen: c_int,
+) -> c_int {
+    EVP_PKEY_CTX_ctrl(
+        ctx,
+        -1,
+        EVP_PKEY_OP_DERIVE,
+        EVP_PKEY_CTRL_HKDF_INFO,
+        infolen,
+        info as *mut c_void,
+    )
+}
+
+#[cfg(all(not(ossl300), not(boringssl)))]
+pub unsafe fn EVP_PKEY_CTX_set_signature_md(cxt: *mut EVP_PKEY_CTX, md: *mut EVP_MD) -> c_int {
+    EVP_PKEY_CTX_ctrl(
+        cxt,
+        -1,
+        EVP_PKEY_OP_TYPE_SIG,
+        EVP_PKEY_CTRL_MD,
+        0,
+        md as *mut c_void,
+    )
+}
+
+pub unsafe fn EVP_PKEY_assign_RSA(pkey: *mut EVP_PKEY, rsa: *mut RSA) -> c_int {
+    EVP_PKEY_assign(pkey, EVP_PKEY_RSA, rsa as *mut c_void)
+}
+
+pub unsafe fn EVP_PKEY_assign_DSA(pkey: *mut EVP_PKEY, dsa: *mut DSA) -> c_int {
+    EVP_PKEY_assign(pkey, EVP_PKEY_DSA, dsa as *mut c_void)
+}
+
+pub unsafe fn EVP_PKEY_assign_DH(pkey: *mut EVP_PKEY, dh: *mut DH) -> c_int {
+    EVP_PKEY_assign(pkey, EVP_PKEY_DH, dh as *mut c_void)
+}
+
+pub unsafe fn EVP_PKEY_assign_EC_KEY(pkey: *mut EVP_PKEY, ec_key: *mut EC_KEY) -> c_int {
+    EVP_PKEY_assign(pkey, EVP_PKEY_EC, ec_key as *mut c_void)
+}
diff --git a/vendor/openssl-sys/src/handwritten/aes.rs b/vendor/openssl-sys/src/handwritten/aes.rs
new file mode 100644
index 0000000..ba24936
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/aes.rs
@@ -0,0 +1,40 @@
+use super::super::*;
+use libc::*;
+
+#[repr(C)]
+pub struct AES_KEY {
+    // There is some business with AES_LONG which is there to ensure the values here are 32 bits
+    rd_key: [u32; 4 * (AES_MAXNR as usize + 1)],
+    rounds: c_int,
+}
+
+extern "C" {
+    pub fn AES_set_encrypt_key(userKey: *const c_uchar, bits: c_int, key: *mut AES_KEY) -> c_int;
+    pub fn AES_set_decrypt_key(userKey: *const c_uchar, bits: c_int, key: *mut AES_KEY) -> c_int;
+
+    #[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))]
+    pub fn AES_ige_encrypt(
+        in_: *const c_uchar,
+        out: *mut c_uchar,
+        length: size_t,
+        key: *const AES_KEY,
+        ivec: *mut c_uchar,
+        enc: c_int,
+    );
+
+    pub fn AES_wrap_key(
+        key: *mut AES_KEY,
+        iv: *const c_uchar,
+        out: *mut c_uchar,
+        in_: *const c_uchar,
+        inlen: c_uint,
+    ) -> c_int;
+
+    pub fn AES_unwrap_key(
+        key: *mut AES_KEY,
+        iv: *const c_uchar,
+        out: *mut c_uchar,
+        in_: *const c_uchar,
+        inlen: c_uint,
+    ) -> c_int;
+}
diff --git a/vendor/openssl-sys/src/handwritten/asn1.rs b/vendor/openssl-sys/src/handwritten/asn1.rs
new file mode 100644
index 0000000..16ffccc
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/asn1.rs
@@ -0,0 +1,115 @@
+use super::super::*;
+use libc::*;
+
+#[repr(C)]
+pub struct ASN1_ENCODING {
+    pub enc: *mut c_uchar,
+    pub len: c_long,
+    pub modified: c_int,
+}
+
+extern "C" {
+    pub fn ASN1_OBJECT_free(x: *mut ASN1_OBJECT);
+    pub fn OBJ_dup(x: *const ASN1_OBJECT) -> *mut ASN1_OBJECT;
+}
+
+stack!(stack_st_ASN1_OBJECT);
+
+#[repr(C)]
+pub struct ASN1_TYPE {
+    pub type_: c_int,
+    pub value: ASN1_TYPE_value,
+}
+#[repr(C)]
+pub union ASN1_TYPE_value {
+    pub ptr: *mut c_char,
+    pub boolean: ASN1_BOOLEAN,
+    pub asn1_string: *mut ASN1_STRING,
+    pub object: *mut ASN1_OBJECT,
+    pub integer: *mut ASN1_INTEGER,
+    pub enumerated: *mut ASN1_ENUMERATED,
+    pub bit_string: *mut ASN1_BIT_STRING,
+    pub octet_string: *mut ASN1_OCTET_STRING,
+    pub printablestring: *mut ASN1_PRINTABLESTRING,
+    pub t61string: *mut ASN1_T61STRING,
+    pub ia5string: *mut ASN1_IA5STRING,
+    pub generalstring: *mut ASN1_GENERALSTRING,
+    pub bmpstring: *mut ASN1_BMPSTRING,
+    pub universalstring: *mut ASN1_UNIVERSALSTRING,
+    pub utctime: *mut ASN1_UTCTIME,
+    pub generalizedtime: *mut ASN1_GENERALIZEDTIME,
+    pub visiblestring: *mut ASN1_VISIBLESTRING,
+    pub utf8string: *mut ASN1_UTF8STRING,
+    pub set: *mut ASN1_STRING,
+    pub sequence: *mut ASN1_STRING,
+    pub asn1_value: *mut ASN1_VALUE,
+}
+
+extern "C" {
+    pub fn ASN1_STRING_type_new(ty: c_int) -> *mut ASN1_STRING;
+    #[cfg(any(ossl110, libressl273))]
+    pub fn ASN1_STRING_get0_data(x: *const ASN1_STRING) -> *const c_uchar;
+    #[cfg(any(all(ossl101, not(ossl110)), libressl))]
+    pub fn ASN1_STRING_data(x: *mut ASN1_STRING) -> *mut c_uchar;
+    pub fn ASN1_STRING_new() -> *mut ASN1_STRING;
+    pub fn ASN1_OCTET_STRING_new() -> *mut ASN1_OCTET_STRING;
+    pub fn ASN1_STRING_free(x: *mut ASN1_STRING);
+    pub fn ASN1_STRING_length(x: *const ASN1_STRING) -> c_int;
+    pub fn ASN1_STRING_set(x: *mut ASN1_STRING, data: *const c_void, len_in: c_int) -> c_int;
+    pub fn ASN1_OCTET_STRING_set(
+        x: *mut ASN1_OCTET_STRING,
+        data: *const c_uchar,
+        len_in: c_int,
+    ) -> c_int;
+
+    pub fn ASN1_BIT_STRING_free(x: *mut ASN1_BIT_STRING);
+    pub fn ASN1_OCTET_STRING_free(x: *mut ASN1_OCTET_STRING);
+
+    pub fn ASN1_GENERALIZEDTIME_free(tm: *mut ASN1_GENERALIZEDTIME);
+    pub fn ASN1_GENERALIZEDTIME_print(b: *mut BIO, tm: *const ASN1_GENERALIZEDTIME) -> c_int;
+    pub fn ASN1_TIME_new() -> *mut ASN1_TIME;
+    #[cfg(ossl102)]
+    pub fn ASN1_TIME_diff(
+        pday: *mut c_int,
+        psec: *mut c_int,
+        from: *const ASN1_TIME,
+        to: *const ASN1_TIME,
+    ) -> c_int;
+    pub fn ASN1_TIME_free(tm: *mut ASN1_TIME);
+    pub fn ASN1_TIME_print(b: *mut BIO, tm: *const ASN1_TIME) -> c_int;
+    pub fn ASN1_TIME_set(from: *mut ASN1_TIME, to: time_t) -> *mut ASN1_TIME;
+
+    pub fn ASN1_INTEGER_free(x: *mut ASN1_INTEGER);
+    pub fn ASN1_INTEGER_dup(a: *const ASN1_INTEGER) -> *mut ASN1_INTEGER;
+    pub fn ASN1_INTEGER_get(dest: *const ASN1_INTEGER) -> c_long;
+    pub fn ASN1_INTEGER_set(dest: *mut ASN1_INTEGER, value: c_long) -> c_int;
+    pub fn ASN1_INTEGER_cmp(a: *const ASN1_INTEGER, b: *const ASN1_INTEGER) -> c_int;
+    pub fn BN_to_ASN1_INTEGER(bn: *const BIGNUM, ai: *mut ASN1_INTEGER) -> *mut ASN1_INTEGER;
+    pub fn ASN1_INTEGER_to_BN(ai: *const ASN1_INTEGER, bn: *mut BIGNUM) -> *mut BIGNUM;
+
+    pub fn ASN1_TIME_set_string(s: *mut ASN1_TIME, str: *const c_char) -> c_int;
+    #[cfg(ossl111)]
+    pub fn ASN1_TIME_set_string_X509(s: *mut ASN1_TIME, str: *const c_char) -> c_int;
+
+    pub fn ASN1_ENUMERATED_free(a: *mut ASN1_ENUMERATED);
+    #[cfg(ossl110)]
+    pub fn ASN1_ENUMERATED_get_int64(pr: *mut i64, a: *const ASN1_ENUMERATED) -> c_int;
+
+    pub fn ASN1_TYPE_new() -> *mut ASN1_TYPE;
+    pub fn ASN1_TYPE_set(a: *mut ASN1_TYPE, type_: c_int, value: *mut c_void);
+    pub fn ASN1_TYPE_free(x: *mut ASN1_TYPE);
+    pub fn d2i_ASN1_TYPE(
+        k: *mut *mut ASN1_TYPE,
+        buf: *mut *const u8,
+        len: c_long,
+    ) -> *mut ASN1_TYPE;
+}
+
+const_ptr_api! {
+    extern "C" {
+        pub fn ASN1_STRING_to_UTF8(out: *mut *mut c_uchar, s: #[const_ptr_if(any(ossl110, libressl280))] ASN1_STRING) -> c_int;
+        pub fn ASN1_STRING_type(x: #[const_ptr_if(any(ossl110, libressl280))]  ASN1_STRING) -> c_int;
+        pub fn ASN1_generate_v3(str: #[const_ptr_if(any(ossl110, libressl280))] c_char, cnf: *mut X509V3_CTX) -> *mut ASN1_TYPE;
+        pub fn i2d_ASN1_TYPE(a: #[const_ptr_if(ossl300)] ASN1_TYPE, pp: *mut *mut c_uchar) -> c_int;
+    }
+}
diff --git a/vendor/openssl-sys/src/handwritten/bio.rs b/vendor/openssl-sys/src/handwritten/bio.rs
new file mode 100644
index 0000000..5f65ec5
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/bio.rs
@@ -0,0 +1,108 @@
+use super::super::*;
+use libc::*;
+
+extern "C" {
+    pub fn BIO_set_flags(b: *mut BIO, flags: c_int);
+    pub fn BIO_clear_flags(b: *mut BIO, flags: c_int);
+}
+
+pub type bio_info_cb =
+    Option<unsafe extern "C" fn(*mut BIO, c_int, *const c_char, c_int, c_long, c_long)>;
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl280))] {
+        pub enum BIO_METHOD {}
+    } else {
+        #[repr(C)]
+        pub struct BIO_METHOD {
+            pub type_: c_int,
+            pub name: *const c_char,
+            pub bwrite: Option<unsafe extern "C" fn(*mut BIO, *const c_char, c_int) -> c_int>,
+            pub bread: Option<unsafe extern "C" fn(*mut BIO, *mut c_char, c_int) -> c_int>,
+            pub bputs: Option<unsafe extern "C" fn(*mut BIO, *const c_char) -> c_int>,
+            pub bgets: Option<unsafe extern "C" fn(*mut BIO, *mut c_char, c_int) -> c_int>,
+            pub ctrl: Option<unsafe extern "C" fn(*mut BIO, c_int, c_long, *mut c_void) -> c_long>,
+            pub create: Option<unsafe extern "C" fn(*mut BIO) -> c_int>,
+            pub destroy: Option<unsafe extern "C" fn(*mut BIO) -> c_int>,
+            pub callback_ctrl: Option<unsafe extern "C" fn(*mut BIO, c_int, bio_info_cb) -> c_long>,
+        }
+    }
+}
+
+const_ptr_api! {
+    extern "C" {
+        pub fn BIO_s_file() -> #[const_ptr_if(any(ossl110, libressl280))] BIO_METHOD;
+        pub fn BIO_new(type_: #[const_ptr_if(any(ossl110, libressl280))] BIO_METHOD) -> *mut BIO;
+    }
+}
+extern "C" {
+    #[cfg(not(osslconf = "OPENSSL_NO_STDIO"))]
+    pub fn BIO_new_fp(stream: *mut FILE, close_flag: c_int) -> *mut BIO;
+    #[cfg(any(ossl110, libressl273))]
+    pub fn BIO_set_data(a: *mut BIO, data: *mut c_void);
+    #[cfg(any(ossl110, libressl273))]
+    pub fn BIO_get_data(a: *mut BIO) -> *mut c_void;
+    #[cfg(any(ossl110, libressl273))]
+    pub fn BIO_set_init(a: *mut BIO, init: c_int);
+    pub fn BIO_write(b: *mut BIO, buf: *const c_void, len: c_int) -> c_int;
+    pub fn BIO_read(b: *mut BIO, buf: *mut c_void, len: c_int) -> c_int;
+    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);
+}
+
+const_ptr_api! {
+    extern "C" {
+        pub fn BIO_s_mem() -> #[const_ptr_if(any(ossl110, libressl280))] BIO_METHOD;
+        pub fn BIO_new_mem_buf(buf: #[const_ptr_if(any(ossl102, libressl280))] c_void, len: c_int) -> *mut BIO;
+    }
+}
+
+extern "C" {
+    #[cfg(not(osslconf = "OPENSSL_NO_SOCK"))]
+    pub fn BIO_new_socket(sock: c_int, close_flag: c_int) -> *mut BIO;
+
+    #[cfg(any(ossl110, libressl273))]
+    pub fn BIO_meth_new(type_: c_int, name: *const c_char) -> *mut BIO_METHOD;
+    #[cfg(any(ossl110, libressl273))]
+    pub fn BIO_meth_free(biom: *mut BIO_METHOD);
+}
+
+#[allow(clashing_extern_declarations)]
+extern "C" {
+    #[cfg(any(ossl110, libressl273))]
+    #[link_name = "BIO_meth_set_write"]
+    pub fn BIO_meth_set_write__fixed_rust(
+        biom: *mut BIO_METHOD,
+        write: Option<unsafe extern "C" fn(*mut BIO, *const c_char, c_int) -> c_int>,
+    ) -> c_int;
+    #[cfg(any(ossl110, libressl273))]
+    #[link_name = "BIO_meth_set_read"]
+    pub fn BIO_meth_set_read__fixed_rust(
+        biom: *mut BIO_METHOD,
+        read: Option<unsafe extern "C" fn(*mut BIO, *mut c_char, c_int) -> c_int>,
+    ) -> c_int;
+    #[cfg(any(ossl110, libressl273))]
+    #[link_name = "BIO_meth_set_puts"]
+    pub fn BIO_meth_set_puts__fixed_rust(
+        biom: *mut BIO_METHOD,
+        read: Option<unsafe extern "C" fn(*mut BIO, *const c_char) -> c_int>,
+    ) -> c_int;
+    #[cfg(any(ossl110, libressl273))]
+    #[link_name = "BIO_meth_set_ctrl"]
+    pub fn BIO_meth_set_ctrl__fixed_rust(
+        biom: *mut BIO_METHOD,
+        read: Option<unsafe extern "C" fn(*mut BIO, c_int, c_long, *mut c_void) -> c_long>,
+    ) -> c_int;
+    #[cfg(any(ossl110, libressl273))]
+    #[link_name = "BIO_meth_set_create"]
+    pub fn BIO_meth_set_create__fixed_rust(
+        biom: *mut BIO_METHOD,
+        create: Option<unsafe extern "C" fn(*mut BIO) -> c_int>,
+    ) -> c_int;
+    #[cfg(any(ossl110, libressl273))]
+    #[link_name = "BIO_meth_set_destroy"]
+    pub fn BIO_meth_set_destroy__fixed_rust(
+        biom: *mut BIO_METHOD,
+        destroy: Option<unsafe extern "C" fn(*mut BIO) -> c_int>,
+    ) -> c_int;
+}
diff --git a/vendor/openssl-sys/src/handwritten/bn.rs b/vendor/openssl-sys/src/handwritten/bn.rs
new file mode 100644
index 0000000..fc42c13
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/bn.rs
@@ -0,0 +1,177 @@
+use super::super::*;
+use libc::*;
+
+extern "C" {
+    pub fn BN_CTX_new() -> *mut BN_CTX;
+    #[cfg(ossl110)]
+    pub fn BN_CTX_secure_new() -> *mut BN_CTX;
+    pub fn BN_CTX_free(ctx: *mut BN_CTX);
+    pub fn BN_rand(r: *mut BIGNUM, bits: c_int, top: c_int, bottom: c_int) -> c_int;
+    #[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))]
+    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: *const BIGNUM) -> c_int;
+    #[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))]
+    pub fn BN_pseudo_rand_range(r: *mut BIGNUM, range: *const BIGNUM) -> c_int;
+    pub fn BN_new() -> *mut BIGNUM;
+    #[cfg(ossl110)]
+    pub fn BN_secure_new() -> *mut BIGNUM;
+    #[cfg(ossl110)]
+    pub fn BN_set_flags(b: *mut BIGNUM, n: c_int);
+    #[cfg(ossl110)]
+    pub fn BN_get_flags(b: *const BIGNUM, n: c_int) -> c_int;
+    pub fn BN_num_bits(bn: *const BIGNUM) -> c_int;
+    pub fn BN_clear_free(bn: *mut BIGNUM);
+    pub fn BN_bin2bn(s: *const u8, size: c_int, ret: *mut BIGNUM) -> *mut BIGNUM;
+    pub fn BN_bn2bin(a: *const BIGNUM, to: *mut u8) -> c_int;
+    #[cfg(any(ossl110, libressl340))]
+    pub fn BN_bn2binpad(a: *const BIGNUM, to: *mut u8, tolen: c_int) -> c_int;
+    pub fn BN_sub(r: *mut BIGNUM, a: *const BIGNUM, b: *const BIGNUM) -> c_int;
+    pub fn BN_add(r: *mut BIGNUM, a: *const BIGNUM, b: *const BIGNUM) -> c_int;
+    pub fn BN_mul(r: *mut BIGNUM, a: *const BIGNUM, b: *const BIGNUM, ctx: *mut BN_CTX) -> c_int;
+    pub fn BN_sqr(r: *mut BIGNUM, a: *const BIGNUM, ctx: *mut BN_CTX) -> c_int;
+    pub fn BN_set_negative(bn: *mut BIGNUM, n: c_int);
+    #[cfg(any(ossl110, libressl350))]
+    pub fn BN_is_negative(b: *const BIGNUM) -> c_int;
+    #[cfg(any(ossl110, libressl350))]
+    pub fn BN_is_odd(b: *const BIGNUM) -> c_int;
+
+    pub fn BN_div(
+        dv: *mut BIGNUM,
+        rem: *mut BIGNUM,
+        a: *const BIGNUM,
+        b: *const BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+    pub fn BN_nnmod(
+        rem: *mut BIGNUM,
+        a: *const BIGNUM,
+        m: *const BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+    pub fn BN_mod_add(
+        r: *mut BIGNUM,
+        a: *const BIGNUM,
+        b: *const BIGNUM,
+        m: *const BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+    pub fn BN_mod_sub(
+        r: *mut BIGNUM,
+        a: *const BIGNUM,
+        b: *const BIGNUM,
+        m: *const BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+    pub fn BN_mod_mul(
+        r: *mut BIGNUM,
+        a: *const BIGNUM,
+        b: *const BIGNUM,
+        m: *const BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+    pub fn BN_mod_sqr(
+        r: *mut BIGNUM,
+        a: *const BIGNUM,
+        m: *const BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+    #[cfg(ossl110)]
+    pub fn BN_mod_sqrt(
+        ret: *mut BIGNUM,
+        a: *const BIGNUM,
+        p: *const BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> *mut BIGNUM;
+
+    pub fn BN_mod_word(r: *const BIGNUM, w: BN_ULONG) -> BN_ULONG;
+    pub fn BN_div_word(r: *mut BIGNUM, w: BN_ULONG) -> BN_ULONG;
+    pub fn BN_mul_word(r: *mut BIGNUM, w: BN_ULONG) -> c_int;
+    pub fn BN_add_word(r: *mut BIGNUM, w: BN_ULONG) -> c_int;
+    pub fn BN_sub_word(r: *mut BIGNUM, w: BN_ULONG) -> c_int;
+    pub fn BN_set_word(bn: *mut BIGNUM, n: BN_ULONG) -> c_int;
+
+    pub fn BN_cmp(a: *const BIGNUM, b: *const BIGNUM) -> c_int;
+    pub fn BN_free(bn: *mut BIGNUM);
+    pub fn BN_is_bit_set(a: *const BIGNUM, n: c_int) -> c_int;
+    pub fn BN_lshift(r: *mut BIGNUM, a: *const BIGNUM, n: c_int) -> c_int;
+    pub fn BN_lshift1(r: *mut BIGNUM, a: *const BIGNUM) -> c_int;
+    pub fn BN_exp(r: *mut BIGNUM, a: *const BIGNUM, p: *const BIGNUM, ctx: *mut BN_CTX) -> c_int;
+
+    pub fn BN_mod_exp(
+        r: *mut BIGNUM,
+        a: *const BIGNUM,
+        p: *const BIGNUM,
+        m: *const BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+
+    pub fn BN_mask_bits(a: *mut BIGNUM, n: c_int) -> c_int;
+    pub fn BN_rshift(r: *mut BIGNUM, a: *const BIGNUM, n: c_int) -> c_int;
+    pub fn BN_rshift1(r: *mut BIGNUM, a: *const BIGNUM) -> c_int;
+    pub fn BN_bn2hex(a: *const BIGNUM) -> *mut c_char;
+    pub fn BN_bn2dec(a: *const BIGNUM) -> *mut c_char;
+    pub fn BN_hex2bn(a: *mut *mut BIGNUM, s: *const c_char) -> c_int;
+    pub fn BN_dec2bn(a: *mut *mut BIGNUM, s: *const c_char) -> c_int;
+    pub fn BN_gcd(r: *mut BIGNUM, a: *const BIGNUM, b: *const BIGNUM, ctx: *mut BN_CTX) -> c_int;
+    pub fn BN_mod_inverse(
+        r: *mut BIGNUM,
+        a: *const BIGNUM,
+        n: *const BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> *mut BIGNUM;
+    pub fn BN_clear(bn: *mut BIGNUM);
+    pub fn BN_dup(n: *const BIGNUM) -> *mut BIGNUM;
+    pub fn BN_ucmp(a: *const BIGNUM, b: *const BIGNUM) -> c_int;
+    pub fn BN_set_bit(a: *mut BIGNUM, n: c_int) -> c_int;
+    pub fn BN_clear_bit(a: *mut BIGNUM, n: c_int) -> c_int;
+
+    pub fn BN_generate_prime_ex(
+        r: *mut BIGNUM,
+        bits: c_int,
+        safe: c_int,
+        add: *const BIGNUM,
+        rem: *const BIGNUM,
+        cb: *mut BN_GENCB,
+    ) -> c_int;
+    #[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))]
+    pub fn BN_is_prime_ex(
+        p: *const BIGNUM,
+        checks: c_int,
+        ctx: *mut BN_CTX,
+        cb: *mut BN_GENCB,
+    ) -> c_int;
+    #[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))]
+    pub fn BN_is_prime_fasttest_ex(
+        p: *const BIGNUM,
+        checks: c_int,
+        ctx: *mut BN_CTX,
+        do_trial_division: c_int,
+        cb: *mut BN_GENCB,
+    ) -> c_int;
+}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl350))] {
+        extern "C" {
+            pub fn BN_get_rfc2409_prime_768(bn: *mut BIGNUM) -> *mut BIGNUM;
+            pub fn BN_get_rfc2409_prime_1024(bn: *mut BIGNUM) -> *mut BIGNUM;
+            pub fn BN_get_rfc3526_prime_1536(bn: *mut BIGNUM) -> *mut BIGNUM;
+            pub fn BN_get_rfc3526_prime_2048(bn: *mut BIGNUM) -> *mut BIGNUM;
+            pub fn BN_get_rfc3526_prime_3072(bn: *mut BIGNUM) -> *mut BIGNUM;
+            pub fn BN_get_rfc3526_prime_4096(bn: *mut BIGNUM) -> *mut BIGNUM;
+            pub fn BN_get_rfc3526_prime_6144(bn: *mut BIGNUM) -> *mut BIGNUM;
+            pub fn BN_get_rfc3526_prime_8192(bn: *mut BIGNUM) -> *mut BIGNUM;
+        }
+    } else {
+        extern "C" {
+            pub fn get_rfc2409_prime_768(bn: *mut BIGNUM) -> *mut BIGNUM;
+            pub fn get_rfc2409_prime_1024(bn: *mut BIGNUM) -> *mut BIGNUM;
+            pub fn get_rfc3526_prime_1536(bn: *mut BIGNUM) -> *mut BIGNUM;
+            pub fn get_rfc3526_prime_2048(bn: *mut BIGNUM) -> *mut BIGNUM;
+            pub fn get_rfc3526_prime_3072(bn: *mut BIGNUM) -> *mut BIGNUM;
+            pub fn get_rfc3526_prime_4096(bn: *mut BIGNUM) -> *mut BIGNUM;
+            pub fn get_rfc3526_prime_6144(bn: *mut BIGNUM) -> *mut BIGNUM;
+            pub fn get_rfc3526_prime_8192(bn: *mut BIGNUM) -> *mut BIGNUM;
+        }
+    }
+}
diff --git a/vendor/openssl-sys/src/handwritten/cmac.rs b/vendor/openssl-sys/src/handwritten/cmac.rs
new file mode 100644
index 0000000..e44094d
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/cmac.rs
@@ -0,0 +1,18 @@
+use libc::*;
+
+use super::super::*;
+
+extern "C" {
+    pub fn CMAC_CTX_new() -> *mut CMAC_CTX;
+    pub fn CMAC_CTX_free(ctx: *mut CMAC_CTX);
+    pub fn CMAC_Init(
+        ctx: *mut CMAC_CTX,
+        key: *const c_void,
+        len: size_t,
+        cipher: *const EVP_CIPHER,
+        impl_: *mut ENGINE,
+    ) -> c_int;
+    pub fn CMAC_Update(ctx: *mut CMAC_CTX, data: *const c_void, len: size_t) -> c_int;
+    pub fn CMAC_Final(ctx: *mut CMAC_CTX, out: *mut c_uchar, len: *mut size_t) -> c_int;
+    pub fn CMAC_CTX_copy(dst: *mut CMAC_CTX, src: *const CMAC_CTX) -> c_int;
+}
diff --git a/vendor/openssl-sys/src/handwritten/cms.rs b/vendor/openssl-sys/src/handwritten/cms.rs
new file mode 100644
index 0000000..a13ea42
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/cms.rs
@@ -0,0 +1,65 @@
+use super::super::*;
+use libc::*;
+
+pub enum CMS_ContentInfo {}
+
+extern "C" {
+    #[cfg(ossl101)]
+    pub fn CMS_ContentInfo_free(cms: *mut CMS_ContentInfo);
+}
+
+const_ptr_api! {
+    extern "C" {
+        #[cfg(ossl101)]
+        pub fn i2d_CMS_ContentInfo(a: #[const_ptr_if(ossl300)] CMS_ContentInfo, pp: *mut *mut c_uchar) -> c_int;
+    }
+}
+
+extern "C" {
+    #[cfg(ossl101)]
+    pub fn d2i_CMS_ContentInfo(
+        a: *mut *mut CMS_ContentInfo,
+        pp: *mut *const c_uchar,
+        length: c_long,
+    ) -> *mut CMS_ContentInfo;
+
+    #[cfg(ossl101)]
+    pub fn SMIME_read_CMS(bio: *mut BIO, bcont: *mut *mut BIO) -> *mut CMS_ContentInfo;
+
+    #[cfg(ossl101)]
+    pub fn CMS_sign(
+        signcert: *mut X509,
+        pkey: *mut EVP_PKEY,
+        certs: *mut stack_st_X509,
+        data: *mut BIO,
+        flags: c_uint,
+    ) -> *mut CMS_ContentInfo;
+
+    #[cfg(ossl101)]
+    pub fn CMS_verify(
+        cms: *mut CMS_ContentInfo,
+        certs: *mut stack_st_X509,
+        store: *mut X509_STORE,
+        detached_data: *mut BIO,
+        out: *mut BIO,
+        flags: c_uint,
+    ) -> c_int;
+
+    #[cfg(ossl101)]
+    pub fn CMS_encrypt(
+        certs: *mut stack_st_X509,
+        data: *mut BIO,
+        cipher: *const EVP_CIPHER,
+        flags: c_uint,
+    ) -> *mut CMS_ContentInfo;
+
+    #[cfg(ossl101)]
+    pub fn CMS_decrypt(
+        cms: *mut CMS_ContentInfo,
+        pkey: *mut EVP_PKEY,
+        cert: *mut X509,
+        dcont: *mut BIO,
+        out: *mut BIO,
+        flags: c_uint,
+    ) -> c_int;
+}
diff --git a/vendor/openssl-sys/src/handwritten/conf.rs b/vendor/openssl-sys/src/handwritten/conf.rs
new file mode 100644
index 0000000..2348d7d
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/conf.rs
@@ -0,0 +1,7 @@
+use super::super::*;
+
+extern "C" {
+    pub fn NCONF_new(meth: *mut CONF_METHOD) -> *mut CONF;
+    pub fn NCONF_default() -> *mut CONF_METHOD;
+    pub fn NCONF_free(conf: *mut CONF);
+}
diff --git a/vendor/openssl-sys/src/handwritten/crypto.rs b/vendor/openssl-sys/src/handwritten/crypto.rs
new file mode 100644
index 0000000..62ccbce
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/crypto.rs
@@ -0,0 +1,85 @@
+use super::super::*;
+use libc::*;
+
+stack!(stack_st_void);
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl271))] {
+        extern "C" {
+            pub fn OpenSSL_version_num() -> c_ulong;
+            pub fn OpenSSL_version(key: c_int) -> *const c_char;
+        }
+    } else {
+        extern "C" {
+            pub fn SSLeay() -> c_ulong;
+            pub fn SSLeay_version(key: c_int) -> *const c_char;
+        }
+    }
+}
+
+extern "C" {
+    #[cfg(any(ossl110, libressl))]
+    pub fn CRYPTO_get_ex_new_index(
+        class_index: c_int,
+        argl: c_long,
+        argp: *mut c_void,
+        new_func: Option<CRYPTO_EX_new>,
+        dup_func: Option<CRYPTO_EX_dup>,
+        free_func: Option<CRYPTO_EX_free>,
+    ) -> c_int;
+
+    #[cfg(not(ossl110))]
+    pub fn CRYPTO_num_locks() -> c_int;
+}
+
+#[allow(clashing_extern_declarations)]
+extern "C" {
+    #[cfg(not(ossl110))]
+    #[link_name = "CRYPTO_set_locking_callback"]
+    pub fn CRYPTO_set_locking_callback__fixed_rust(
+        func: Option<unsafe extern "C" fn(mode: c_int, n: c_int, file: *const c_char, line: c_int)>,
+    );
+
+    #[cfg(not(ossl110))]
+    #[link_name = "CRYPTO_set_id_callback"]
+    pub fn CRYPTO_set_id_callback__fixed_rust(func: Option<unsafe extern "C" fn() -> c_ulong>);
+}
+
+extern "C" {
+    #[cfg(not(ossl110))]
+    pub fn CRYPTO_add_lock(
+        pointer: *mut c_int,
+        amount: c_int,
+        type_: c_int,
+        file: *const c_char,
+        line: c_int,
+    ) -> c_int;
+}
+
+cfg_if! {
+    if #[cfg(ossl110)] {
+        extern "C" {
+            pub fn CRYPTO_malloc(num: size_t, file: *const c_char, line: c_int) -> *mut c_void;
+            pub fn CRYPTO_free(buf: *mut c_void, file: *const c_char, line: c_int);
+        }
+    } else {
+        extern "C" {
+            pub fn CRYPTO_malloc(num: c_int, file: *const c_char, line: c_int) -> *mut c_void;
+            pub fn CRYPTO_free(buf: *mut c_void);
+        }
+    }
+}
+
+extern "C" {
+    #[cfg(all(ossl101, not(ossl300)))]
+    pub fn FIPS_mode() -> c_int;
+    #[cfg(all(ossl101, not(ossl300)))]
+    pub fn FIPS_mode_set(onoff: c_int) -> c_int;
+
+    pub fn CRYPTO_memcmp(a: *const c_void, b: *const c_void, len: size_t) -> c_int;
+
+    #[cfg(ossl300)]
+    pub fn OSSL_LIB_CTX_new() -> *mut OSSL_LIB_CTX;
+    #[cfg(ossl300)]
+    pub fn OSSL_LIB_CTX_free(libcts: *mut OSSL_LIB_CTX);
+}
diff --git a/vendor/openssl-sys/src/handwritten/dh.rs b/vendor/openssl-sys/src/handwritten/dh.rs
new file mode 100644
index 0000000..87a0817
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/dh.rs
@@ -0,0 +1,51 @@
+use super::super::*;
+
+extern "C" {
+    pub fn DH_new() -> *mut DH;
+    pub fn DH_free(dh: *mut DH);
+    pub fn DH_check(dh: *const DH, codes: *mut c_int) -> c_int;
+
+    pub fn DH_generate_parameters(
+        prime_len: c_int,
+        generator: c_int,
+        callback: Option<extern "C" fn(c_int, c_int, *mut c_void)>,
+        cb_arg: *mut c_void,
+    ) -> *mut DH;
+
+    pub fn DH_generate_parameters_ex(
+        dh: *mut DH,
+        prime_len: c_int,
+        generator: c_int,
+        cb: *mut BN_GENCB,
+    ) -> c_int;
+
+    pub fn DH_generate_key(dh: *mut DH) -> c_int;
+    pub fn DH_compute_key(key: *mut c_uchar, pub_key: *const BIGNUM, dh: *mut DH) -> c_int;
+    pub fn DH_size(dh: *const DH) -> c_int;
+
+    pub fn d2i_DHparams(k: *mut *mut DH, pp: *mut *const c_uchar, length: c_long) -> *mut DH;
+    pub fn i2d_DHparams(dh: *const DH, pp: *mut *mut c_uchar) -> c_int;
+
+    #[cfg(ossl102)]
+    pub fn DH_get_1024_160() -> *mut DH;
+    #[cfg(ossl102)]
+    pub fn DH_get_2048_224() -> *mut DH;
+    #[cfg(ossl102)]
+    pub fn DH_get_2048_256() -> *mut DH;
+
+    #[cfg(any(ossl110, libressl270))]
+    pub fn DH_set0_pqg(dh: *mut DH, p: *mut BIGNUM, q: *mut BIGNUM, g: *mut BIGNUM) -> c_int;
+    #[cfg(any(ossl110, libressl270))]
+    pub fn DH_get0_pqg(
+        dh: *const DH,
+        p: *mut *const BIGNUM,
+        q: *mut *const BIGNUM,
+        g: *mut *const BIGNUM,
+    );
+
+    #[cfg(any(ossl110, libressl270))]
+    pub fn DH_set0_key(dh: *mut DH, pub_key: *mut BIGNUM, priv_key: *mut BIGNUM) -> c_int;
+
+    #[cfg(any(ossl110, libressl270))]
+    pub fn DH_get0_key(dh: *const DH, pub_key: *mut *const BIGNUM, priv_key: *mut *const BIGNUM);
+}
diff --git a/vendor/openssl-sys/src/handwritten/dsa.rs b/vendor/openssl-sys/src/handwritten/dsa.rs
new file mode 100644
index 0000000..be25f23
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/dsa.rs
@@ -0,0 +1,85 @@
+use libc::*;
+
+use super::super::*;
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl280))] {
+        pub enum DSA_SIG {}
+    } else {
+      #[repr(C)]
+      pub struct DSA_SIG {
+          pub r: *mut BIGNUM,
+          pub s: *mut BIGNUM,
+      }
+    }
+}
+
+extern "C" {
+    pub fn DSA_new() -> *mut DSA;
+    pub fn DSA_free(dsa: *mut DSA);
+    pub fn DSA_up_ref(dsa: *mut DSA) -> c_int;
+    pub fn DSA_size(dsa: *const DSA) -> c_int;
+    pub fn DSA_sign(
+        dummy: c_int,
+        dgst: *const c_uchar,
+        len: c_int,
+        sigret: *mut c_uchar,
+        siglen: *mut c_uint,
+        dsa: *mut DSA,
+    ) -> c_int;
+    pub fn DSA_verify(
+        dummy: c_int,
+        dgst: *const c_uchar,
+        len: c_int,
+        sigbuf: *const c_uchar,
+        siglen: c_int,
+        dsa: *mut DSA,
+    ) -> c_int;
+
+    pub fn d2i_DSAPublicKey(a: *mut *mut DSA, pp: *mut *const c_uchar, length: c_long) -> *mut DSA;
+    pub fn d2i_DSAPrivateKey(a: *mut *mut DSA, pp: *mut *const c_uchar, length: c_long)
+        -> *mut DSA;
+
+    pub fn DSA_generate_parameters_ex(
+        dsa: *mut DSA,
+        bits: c_int,
+        seed: *const c_uchar,
+        seed_len: c_int,
+        counter_ref: *mut c_int,
+        h_ret: *mut c_ulong,
+        cb: *mut BN_GENCB,
+    ) -> c_int;
+
+    pub fn DSA_generate_key(dsa: *mut DSA) -> c_int;
+    pub fn i2d_DSAPublicKey(a: *const DSA, pp: *mut *mut c_uchar) -> c_int;
+    pub fn i2d_DSAPrivateKey(a: *const DSA, pp: *mut *mut c_uchar) -> c_int;
+
+    #[cfg(any(ossl110, libressl273))]
+    pub fn DSA_get0_pqg(
+        d: *const DSA,
+        p: *mut *const BIGNUM,
+        q: *mut *const BIGNUM,
+        q: *mut *const BIGNUM,
+    );
+    #[cfg(any(ossl110, libressl273))]
+    pub fn DSA_set0_pqg(d: *mut DSA, p: *mut BIGNUM, q: *mut BIGNUM, q: *mut BIGNUM) -> c_int;
+    #[cfg(any(ossl110, libressl273))]
+    pub fn DSA_get0_key(d: *const DSA, pub_key: *mut *const BIGNUM, priv_key: *mut *const BIGNUM);
+    #[cfg(any(ossl110, libressl273))]
+    pub fn DSA_set0_key(d: *mut DSA, pub_key: *mut BIGNUM, priv_key: *mut BIGNUM) -> c_int;
+    pub fn d2i_DSA_SIG(
+        sig: *mut *mut DSA_SIG,
+        pp: *mut *const c_uchar,
+        length: c_long,
+    ) -> *mut DSA_SIG;
+    pub fn i2d_DSA_SIG(a: *const DSA_SIG, pp: *mut *mut c_uchar) -> c_int;
+
+    pub fn DSA_SIG_new() -> *mut DSA_SIG;
+    pub fn DSA_SIG_free(sig: *mut DSA_SIG);
+
+    #[cfg(any(ossl110, libressl273))]
+    pub fn DSA_SIG_get0(sig: *const DSA_SIG, pr: *mut *const BIGNUM, ps: *mut *const BIGNUM);
+
+    #[cfg(any(ossl110, libressl273))]
+    pub fn DSA_SIG_set0(sig: *mut DSA_SIG, pr: *mut BIGNUM, ps: *mut BIGNUM) -> c_int;
+}
diff --git a/vendor/openssl-sys/src/handwritten/ec.rs b/vendor/openssl-sys/src/handwritten/ec.rs
new file mode 100644
index 0000000..f199bc8
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/ec.rs
@@ -0,0 +1,271 @@
+use super::super::*;
+use libc::*;
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub enum point_conversion_form_t {
+    POINT_CONVERSION_COMPRESSED = 2,
+    POINT_CONVERSION_UNCOMPRESSED = 4,
+    POINT_CONVERSION_HYBRID = 6,
+}
+
+pub enum EC_METHOD {}
+pub enum EC_GROUP {}
+pub enum EC_POINT {}
+
+extern "C" {
+    #[cfg(not(osslconf = "OPENSSL_NO_EC2M"))]
+    pub fn EC_GF2m_simple_method() -> *const EC_METHOD;
+
+    pub fn EC_GROUP_new(meth: *const EC_METHOD) -> *mut EC_GROUP;
+
+    pub fn EC_GROUP_free(group: *mut EC_GROUP);
+
+    pub fn EC_GROUP_get_order(
+        group: *const EC_GROUP,
+        order: *mut BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+
+    pub fn EC_GROUP_get_cofactor(
+        group: *const EC_GROUP,
+        cofactor: *mut BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+
+    pub fn EC_GROUP_get0_generator(group: *const EC_GROUP) -> *const EC_POINT;
+
+    pub fn EC_GROUP_set_generator(
+        group: *mut EC_GROUP,
+        generator: *const EC_POINT,
+        order: *const BIGNUM,
+        cofactor: *const BIGNUM,
+    ) -> c_int;
+
+    pub fn EC_GROUP_get_curve_name(group: *const EC_GROUP) -> c_int;
+
+    pub fn EC_GROUP_set_asn1_flag(key: *mut EC_GROUP, flag: c_int);
+
+    pub fn EC_GROUP_get_asn1_flag(group: *const EC_GROUP) -> c_int;
+
+    pub fn EC_GROUP_get_curve_GFp(
+        group: *const EC_GROUP,
+        p: *mut BIGNUM,
+        a: *mut BIGNUM,
+        b: *mut BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+
+    #[cfg(not(osslconf = "OPENSSL_NO_EC2M"))]
+    pub fn EC_GROUP_get_curve_GF2m(
+        group: *const EC_GROUP,
+        p: *mut BIGNUM,
+        a: *mut BIGNUM,
+        b: *mut BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+
+    pub fn EC_GROUP_get_degree(group: *const EC_GROUP) -> c_int;
+
+    #[cfg(ossl110)]
+    pub fn EC_GROUP_order_bits(group: *const EC_GROUP) -> c_int;
+
+    pub fn EC_GROUP_new_curve_GFp(
+        p: *const BIGNUM,
+        a: *const BIGNUM,
+        b: *const BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> *mut EC_GROUP;
+
+    #[cfg(not(osslconf = "OPENSSL_NO_EC2M"))]
+    pub fn EC_GROUP_new_curve_GF2m(
+        p: *const BIGNUM,
+        a: *const BIGNUM,
+        b: *const BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> *mut EC_GROUP;
+
+    pub fn EC_GROUP_new_by_curve_name(nid: c_int) -> *mut EC_GROUP;
+
+    pub fn EC_POINT_is_at_infinity(group: *const EC_GROUP, point: *const EC_POINT) -> c_int;
+
+    pub fn EC_POINT_is_on_curve(
+        group: *const EC_GROUP,
+        point: *const EC_POINT,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+
+    pub fn EC_POINT_new(group: *const EC_GROUP) -> *mut EC_POINT;
+
+    pub fn EC_POINT_free(point: *mut EC_POINT);
+
+    pub fn EC_POINT_dup(p: *const EC_POINT, group: *const EC_GROUP) -> *mut EC_POINT;
+
+    #[cfg(any(ossl111, boringssl, libressl350))]
+    pub fn EC_POINT_get_affine_coordinates(
+        group: *const EC_GROUP,
+        p: *const EC_POINT,
+        x: *mut BIGNUM,
+        y: *mut BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+
+    pub fn EC_POINT_get_affine_coordinates_GFp(
+        group: *const EC_GROUP,
+        p: *const EC_POINT,
+        x: *mut BIGNUM,
+        y: *mut BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+
+    pub fn EC_POINT_set_affine_coordinates_GFp(
+        group: *const EC_GROUP,
+        p: *mut EC_POINT,
+        x: *const BIGNUM,
+        y: *const BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+
+    #[cfg(not(osslconf = "OPENSSL_NO_EC2M"))]
+    pub fn EC_POINT_get_affine_coordinates_GF2m(
+        group: *const EC_GROUP,
+        p: *const EC_POINT,
+        x: *mut BIGNUM,
+        y: *mut BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+
+    pub fn EC_POINT_point2oct(
+        group: *const EC_GROUP,
+        p: *const EC_POINT,
+        form: point_conversion_form_t,
+        buf: *mut c_uchar,
+        len: size_t,
+        ctx: *mut BN_CTX,
+    ) -> size_t;
+
+    pub fn EC_POINT_oct2point(
+        group: *const EC_GROUP,
+        p: *mut EC_POINT,
+        buf: *const c_uchar,
+        len: size_t,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+
+    pub fn EC_POINT_point2hex(
+        group: *const EC_GROUP,
+        p: *const EC_POINT,
+        form: point_conversion_form_t,
+        ctx: *mut BN_CTX,
+    ) -> *mut c_char;
+
+    pub fn EC_POINT_hex2point(
+        group: *const EC_GROUP,
+        s: *const c_char,
+        p: *mut EC_POINT,
+        ctx: *mut BN_CTX,
+    ) -> *mut EC_POINT;
+
+    pub fn EC_POINT_add(
+        group: *const EC_GROUP,
+        r: *mut EC_POINT,
+        a: *const EC_POINT,
+        b: *const EC_POINT,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+
+    pub fn EC_POINT_invert(group: *const EC_GROUP, r: *mut EC_POINT, ctx: *mut BN_CTX) -> c_int;
+
+    pub fn EC_POINT_cmp(
+        group: *const EC_GROUP,
+        a: *const EC_POINT,
+        b: *const EC_POINT,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+
+    pub fn EC_POINT_mul(
+        group: *const EC_GROUP,
+        r: *mut EC_POINT,
+        n: *const BIGNUM,
+        q: *const EC_POINT,
+        m: *const BIGNUM,
+        ctx: *mut BN_CTX,
+    ) -> c_int;
+
+    pub fn EC_KEY_new() -> *mut EC_KEY;
+
+    pub fn EC_KEY_new_by_curve_name(nid: c_int) -> *mut EC_KEY;
+
+    pub fn EC_KEY_free(key: *mut EC_KEY);
+
+    pub fn EC_KEY_dup(key: *const EC_KEY) -> *mut EC_KEY;
+
+    pub fn EC_KEY_up_ref(key: *mut EC_KEY) -> c_int;
+
+    pub fn EC_KEY_get0_group(key: *const EC_KEY) -> *const EC_GROUP;
+
+    pub fn EC_KEY_set_group(key: *mut EC_KEY, group: *const EC_GROUP) -> c_int;
+
+    pub fn EC_KEY_get0_private_key(key: *const EC_KEY) -> *const BIGNUM;
+
+    pub fn EC_KEY_set_private_key(key: *mut EC_KEY, key: *const BIGNUM) -> c_int;
+
+    pub fn EC_KEY_get0_public_key(key: *const EC_KEY) -> *const EC_POINT;
+
+    pub fn EC_KEY_set_public_key(key: *mut EC_KEY, key: *const EC_POINT) -> c_int;
+
+    pub fn EC_KEY_generate_key(key: *mut EC_KEY) -> c_int;
+
+    pub fn EC_KEY_check_key(key: *const EC_KEY) -> c_int;
+
+    pub fn EC_KEY_set_public_key_affine_coordinates(
+        key: *mut EC_KEY,
+        x: *mut BIGNUM,
+        y: *mut BIGNUM,
+    ) -> c_int;
+}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl280))] {
+        pub enum ECDSA_SIG {}
+    } else {
+        #[repr(C)]
+        pub struct ECDSA_SIG {
+            pub r: *mut BIGNUM,
+            pub s: *mut BIGNUM,
+        }
+    }
+}
+
+extern "C" {
+    pub fn ECDSA_SIG_new() -> *mut ECDSA_SIG;
+
+    pub fn ECDSA_SIG_free(sig: *mut ECDSA_SIG);
+
+    #[cfg(any(ossl110, libressl273))]
+    pub fn ECDSA_SIG_get0(sig: *const ECDSA_SIG, pr: *mut *const BIGNUM, ps: *mut *const BIGNUM);
+
+    #[cfg(any(ossl110, libressl273))]
+    pub fn ECDSA_SIG_set0(sig: *mut ECDSA_SIG, pr: *mut BIGNUM, ps: *mut BIGNUM) -> c_int;
+
+    pub fn ECDSA_do_sign(
+        dgst: *const c_uchar,
+        dgst_len: c_int,
+        eckey: *mut EC_KEY,
+    ) -> *mut ECDSA_SIG;
+
+    pub fn ECDSA_do_verify(
+        dgst: *const c_uchar,
+        dgst_len: c_int,
+        sig: *const ECDSA_SIG,
+        eckey: *mut EC_KEY,
+    ) -> c_int;
+
+    pub fn d2i_ECDSA_SIG(
+        sig: *mut *mut ECDSA_SIG,
+        inp: *mut *const c_uchar,
+        length: c_long,
+    ) -> *mut ECDSA_SIG;
+
+    pub fn i2d_ECDSA_SIG(sig: *const ECDSA_SIG, out: *mut *mut c_uchar) -> c_int;
+}
diff --git a/vendor/openssl-sys/src/handwritten/err.rs b/vendor/openssl-sys/src/handwritten/err.rs
new file mode 100644
index 0000000..5653c1d
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/err.rs
@@ -0,0 +1,55 @@
+use super::super::*;
+use libc::*;
+
+#[repr(C)]
+pub struct ERR_STRING_DATA {
+    pub error: c_ulong,
+    pub string: *const c_char,
+}
+
+cfg_if! {
+    if #[cfg(ossl300)] {
+        extern "C" {
+            pub fn ERR_new();
+            pub fn ERR_set_debug(file: *const c_char, line: c_int, func: *const c_char);
+            pub fn ERR_set_error(lib: c_int, reason: c_int, fmt: *const c_char, ...);
+        }
+    } else {
+        extern "C" {
+            pub fn ERR_put_error(lib: c_int, func: c_int, reason: c_int, file: *const c_char, line: c_int);
+        }
+    }
+}
+
+extern "C" {
+    pub fn ERR_set_error_data(data: *mut c_char, flags: c_int);
+
+    pub fn ERR_get_error() -> c_ulong;
+    #[cfg(ossl300)]
+    pub fn ERR_get_error_all(
+        file: *mut *const c_char,
+        line: *mut c_int,
+        func: *mut *const c_char,
+        data: *mut *const c_char,
+        flags: *mut c_int,
+    ) -> c_ulong;
+    pub fn ERR_get_error_line_data(
+        file: *mut *const c_char,
+        line: *mut c_int,
+        data: *mut *const c_char,
+        flags: *mut c_int,
+    ) -> c_ulong;
+    pub fn ERR_peek_last_error() -> c_ulong;
+    pub fn ERR_clear_error();
+    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;
+    #[cfg(ossl110)]
+    pub fn ERR_load_strings(lib: c_int, str: *mut ERR_STRING_DATA) -> c_int;
+    #[cfg(not(ossl110))]
+    pub fn ERR_load_strings(lib: c_int, str: *mut ERR_STRING_DATA);
+    #[cfg(not(ossl110))]
+    pub fn ERR_load_crypto_strings();
+
+    pub fn ERR_get_next_error_library() -> c_int;
+}
diff --git a/vendor/openssl-sys/src/handwritten/evp.rs b/vendor/openssl-sys/src/handwritten/evp.rs
new file mode 100644
index 0000000..e8ad6aa
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/evp.rs
@@ -0,0 +1,625 @@
+use super::super::*;
+use libc::*;
+
+cfg_if! {
+    if #[cfg(ossl300)] {
+        extern "C" {
+            pub fn EVP_MD_get_block_size(md: *const EVP_MD) -> c_int;
+            pub fn EVP_MD_get_size(md: *const EVP_MD) -> c_int;
+            pub fn EVP_MD_get_type(md: *const EVP_MD) -> c_int;
+
+            pub fn EVP_MD_CTX_get0_md(ctx: *const EVP_MD_CTX) -> *const EVP_MD;
+
+            pub fn EVP_CIPHER_get_key_length(cipher: *const EVP_CIPHER) -> c_int;
+            pub fn EVP_CIPHER_get_block_size(cipher: *const EVP_CIPHER) -> c_int;
+            pub fn EVP_CIPHER_get_iv_length(cipher: *const EVP_CIPHER) -> c_int;
+            pub fn EVP_CIPHER_get_nid(cipher: *const EVP_CIPHER) -> c_int;
+            pub fn EVP_CIPHER_fetch(
+                ctx: *mut OSSL_LIB_CTX,
+                algorithm: *const c_char,
+                properties: *const c_char,
+            ) -> *mut EVP_CIPHER;
+            pub fn EVP_CIPHER_free(cipher: *mut EVP_CIPHER);
+
+            pub fn EVP_CIPHER_CTX_get0_cipher(ctx: *const EVP_CIPHER_CTX) -> *const EVP_CIPHER;
+            pub fn EVP_CIPHER_CTX_get_block_size(ctx: *const EVP_CIPHER_CTX) -> c_int;
+            pub fn EVP_CIPHER_CTX_get_key_length(ctx: *const EVP_CIPHER_CTX) -> c_int;
+            pub fn EVP_CIPHER_CTX_get_iv_length(ctx: *const EVP_CIPHER_CTX) -> c_int;
+            pub fn EVP_CIPHER_CTX_get_tag_length(ctx: *const EVP_CIPHER_CTX) -> c_int;
+            pub fn EVP_CIPHER_CTX_get_num(ctx: *const EVP_CIPHER_CTX) -> c_int;
+        }
+    } else {
+        extern "C" {
+            pub fn EVP_MD_block_size(md: *const EVP_MD) -> c_int;
+            pub fn EVP_MD_size(md: *const EVP_MD) -> c_int;
+            pub fn EVP_MD_type(md: *const EVP_MD) -> c_int;
+
+            pub fn EVP_MD_CTX_md(ctx: *const EVP_MD_CTX) -> *const EVP_MD;
+
+            pub fn EVP_CIPHER_key_length(cipher: *const EVP_CIPHER) -> c_int;
+            pub fn EVP_CIPHER_block_size(cipher: *const EVP_CIPHER) -> c_int;
+            pub fn EVP_CIPHER_iv_length(cipher: *const EVP_CIPHER) -> c_int;
+            pub fn EVP_CIPHER_nid(cipher: *const EVP_CIPHER) -> c_int;
+
+            pub fn EVP_CIPHER_CTX_cipher(ctx: *const EVP_CIPHER_CTX) -> *const EVP_CIPHER;
+            pub fn EVP_CIPHER_CTX_block_size(ctx: *const EVP_CIPHER_CTX) -> c_int;
+            pub fn EVP_CIPHER_CTX_key_length(ctx: *const EVP_CIPHER_CTX) -> c_int;
+            pub fn EVP_CIPHER_CTX_iv_length(ctx: *const EVP_CIPHER_CTX) -> c_int;
+            #[cfg(ossl110)]
+            pub fn EVP_CIPHER_CTX_num(ctx: *const EVP_CIPHER_CTX) -> c_int;
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(ossl110)] {
+        extern "C" {
+            pub fn EVP_MD_CTX_new() -> *mut EVP_MD_CTX;
+            pub fn EVP_MD_CTX_free(ctx: *mut EVP_MD_CTX);
+        }
+    } else {
+        extern "C" {
+            pub fn EVP_MD_CTX_create() -> *mut EVP_MD_CTX;
+            pub fn EVP_MD_CTX_destroy(ctx: *mut EVP_MD_CTX);
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(ossl300)] {
+        extern "C" {
+            pub fn EVP_default_properties_is_fips_enabled(libctx: *mut OSSL_LIB_CTX) -> c_int;
+        }
+    }
+}
+
+extern "C" {
+    pub fn EVP_DigestInit_ex(ctx: *mut EVP_MD_CTX, typ: *const EVP_MD, imple: *mut ENGINE)
+        -> c_int;
+    pub fn EVP_DigestUpdate(ctx: *mut EVP_MD_CTX, data: *const c_void, n: size_t) -> c_int;
+    pub fn EVP_DigestFinal_ex(ctx: *mut EVP_MD_CTX, res: *mut u8, n: *mut u32) -> c_int;
+    #[cfg(ossl300)]
+    pub fn EVP_Q_digest(
+        libctx: *mut OSSL_LIB_CTX,
+        name: *const c_char,
+        propq: *const c_char,
+        data: *const c_void,
+        count: size_t,
+        md: *mut c_uchar,
+        size: *mut size_t,
+    ) -> c_int;
+    pub fn EVP_DigestInit(ctx: *mut EVP_MD_CTX, typ: *const EVP_MD) -> c_int;
+    pub fn EVP_DigestFinal(ctx: *mut EVP_MD_CTX, res: *mut u8, n: *mut u32) -> c_int;
+    #[cfg(ossl111)]
+    pub fn EVP_DigestFinalXOF(ctx: *mut EVP_MD_CTX, res: *mut u8, len: usize) -> c_int;
+
+    #[cfg(ossl300)]
+    pub fn EVP_MD_fetch(
+        ctx: *mut OSSL_LIB_CTX,
+        algorithm: *const c_char,
+        properties: *const c_char,
+    ) -> *mut EVP_MD;
+
+    #[cfg(ossl300)]
+    pub fn EVP_MD_free(md: *mut EVP_MD);
+
+    pub fn EVP_BytesToKey(
+        typ: *const EVP_CIPHER,
+        md: *const EVP_MD,
+        salt: *const u8,
+        data: *const u8,
+        datalen: c_int,
+        count: c_int,
+        key: *mut u8,
+        iv: *mut u8,
+    ) -> c_int;
+
+    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_CipherInit_ex(
+        ctx: *mut EVP_CIPHER_CTX,
+        type_: *const EVP_CIPHER,
+        impl_: *mut ENGINE,
+        key: *const c_uchar,
+        iv: *const c_uchar,
+        enc: 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_DigestSignInit(
+        ctx: *mut EVP_MD_CTX,
+        pctx: *mut *mut EVP_PKEY_CTX,
+        type_: *const EVP_MD,
+        e: *mut ENGINE,
+        pkey: *mut EVP_PKEY,
+    ) -> c_int;
+
+    #[cfg(ossl300)]
+    pub fn EVP_DigestSignUpdate(ctx: *mut EVP_MD_CTX, data: *const c_void, dsize: size_t) -> c_int;
+    pub fn EVP_DigestSignFinal(
+        ctx: *mut EVP_MD_CTX,
+        sig: *mut c_uchar,
+        siglen: *mut size_t,
+    ) -> c_int;
+    pub fn EVP_DigestVerifyInit(
+        ctx: *mut EVP_MD_CTX,
+        pctx: *mut *mut EVP_PKEY_CTX,
+        type_: *const EVP_MD,
+        e: *mut ENGINE,
+        pkey: *mut EVP_PKEY,
+    ) -> c_int;
+    #[cfg(ossl300)]
+    pub fn EVP_DigestVerifyUpdate(
+        ctx: *mut EVP_MD_CTX,
+        data: *const c_void,
+        dsize: size_t,
+    ) -> c_int;
+    pub fn EVP_SealInit(
+        ctx: *mut EVP_CIPHER_CTX,
+        type_: *const EVP_CIPHER,
+        ek: *mut *mut c_uchar,
+        ekl: *mut c_int,
+        iv: *mut c_uchar,
+        pubk: *mut *mut EVP_PKEY,
+        npubk: c_int,
+    ) -> c_int;
+    pub fn EVP_SealFinal(ctx: *mut EVP_CIPHER_CTX, out: *mut c_uchar, outl: *mut c_int) -> c_int;
+    pub fn EVP_EncryptInit_ex(
+        ctx: *mut EVP_CIPHER_CTX,
+        cipher: *const EVP_CIPHER,
+        impl_: *mut ENGINE,
+        key: *const c_uchar,
+        iv: *const c_uchar,
+    ) -> c_int;
+    pub fn EVP_EncryptUpdate(
+        ctx: *mut EVP_CIPHER_CTX,
+        out: *mut c_uchar,
+        outl: *mut c_int,
+        in_: *const u8,
+        inl: c_int,
+    ) -> c_int;
+    pub fn EVP_EncryptFinal_ex(
+        ctx: *mut EVP_CIPHER_CTX,
+        out: *mut c_uchar,
+        outl: *mut c_int,
+    ) -> c_int;
+    pub fn EVP_OpenInit(
+        ctx: *mut EVP_CIPHER_CTX,
+        type_: *const EVP_CIPHER,
+        ek: *const c_uchar,
+        ekl: c_int,
+        iv: *const c_uchar,
+        priv_: *mut EVP_PKEY,
+    ) -> c_int;
+    pub fn EVP_OpenFinal(ctx: *mut EVP_CIPHER_CTX, out: *mut c_uchar, outl: *mut c_int) -> c_int;
+    pub fn EVP_DecryptInit_ex(
+        ctx: *mut EVP_CIPHER_CTX,
+        cipher: *const EVP_CIPHER,
+        impl_: *mut ENGINE,
+        key: *const c_uchar,
+        iv: *const c_uchar,
+    ) -> c_int;
+    pub fn EVP_DecryptUpdate(
+        ctx: *mut EVP_CIPHER_CTX,
+        out: *mut c_uchar,
+        outl: *mut c_int,
+        in_: *const u8,
+        inl: c_int,
+    ) -> c_int;
+    pub fn EVP_DecryptFinal_ex(
+        ctx: *mut EVP_CIPHER_CTX,
+        outm: *mut c_uchar,
+        outl: *mut c_int,
+    ) -> c_int;
+}
+cfg_if! {
+    if #[cfg(ossl300)] {
+        extern "C" {
+            pub fn EVP_PKEY_get_size(pkey: *const EVP_PKEY) -> c_int;
+        }
+    } else {
+        const_ptr_api! {
+            extern "C" {
+                pub fn EVP_PKEY_size(pkey: #[const_ptr_if(any(ossl111b, libressl280))] EVP_PKEY) -> c_int;
+            }
+        }
+    }
+}
+cfg_if! {
+    if #[cfg(any(ossl111, libressl370))] {
+        extern "C" {
+            pub fn EVP_DigestSign(
+                ctx: *mut EVP_MD_CTX,
+                sigret: *mut c_uchar,
+                siglen: *mut size_t,
+                tbs: *const c_uchar,
+                tbslen: size_t
+            ) -> c_int;
+
+            pub fn EVP_DigestVerify(
+                ctx: *mut EVP_MD_CTX,
+                sigret: *const c_uchar,
+                siglen: size_t,
+                tbs: *const c_uchar,
+                tbslen: size_t
+            ) -> c_int;
+        }
+    }
+}
+const_ptr_api! {
+    extern "C" {
+        pub fn EVP_DigestVerifyFinal(
+            ctx: *mut EVP_MD_CTX,
+            sigret: #[const_ptr_if(any(ossl102, libressl280))] c_uchar,
+            siglen: size_t,
+        ) -> c_int;
+    }
+}
+
+extern "C" {
+    pub fn EVP_CIPHER_CTX_new() -> *mut EVP_CIPHER_CTX;
+    pub fn EVP_CIPHER_CTX_free(ctx: *mut EVP_CIPHER_CTX);
+    pub fn EVP_CIPHER_CTX_copy(dst: *mut EVP_CIPHER_CTX, src: *const EVP_CIPHER_CTX) -> c_int;
+
+    pub fn EVP_MD_CTX_copy_ex(dst: *mut EVP_MD_CTX, src: *const EVP_MD_CTX) -> c_int;
+    #[cfg(ossl111)]
+    pub fn EVP_MD_CTX_reset(ctx: *mut EVP_MD_CTX) -> c_int;
+    pub fn EVP_CIPHER_CTX_set_key_length(ctx: *mut EVP_CIPHER_CTX, keylen: c_int) -> c_int;
+    pub fn EVP_CIPHER_CTX_set_padding(ctx: *mut EVP_CIPHER_CTX, padding: c_int) -> c_int;
+    pub fn EVP_CIPHER_CTX_ctrl(
+        ctx: *mut EVP_CIPHER_CTX,
+        type_: c_int,
+        arg: c_int,
+        ptr: *mut c_void,
+    ) -> c_int;
+    pub fn EVP_CIPHER_CTX_rand_key(ctx: *mut EVP_CIPHER_CTX, key: *mut c_uchar) -> c_int;
+    pub fn EVP_CIPHER_CTX_set_flags(ctx: *mut EVP_CIPHER_CTX, flags: c_int);
+
+    pub fn EVP_md_null() -> *const EVP_MD;
+    pub fn EVP_md5() -> *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;
+    #[cfg(ossl111)]
+    pub fn EVP_sha3_224() -> *const EVP_MD;
+    #[cfg(ossl111)]
+    pub fn EVP_sha3_256() -> *const EVP_MD;
+    #[cfg(ossl111)]
+    pub fn EVP_sha3_384() -> *const EVP_MD;
+    #[cfg(ossl111)]
+    pub fn EVP_sha3_512() -> *const EVP_MD;
+    #[cfg(ossl111)]
+    pub fn EVP_shake128() -> *const EVP_MD;
+    #[cfg(ossl111)]
+    pub fn EVP_shake256() -> *const EVP_MD;
+    pub fn EVP_ripemd160() -> *const EVP_MD;
+    #[cfg(all(any(ossl111, libressl291), not(osslconf = "OPENSSL_NO_SM3")))]
+    pub fn EVP_sm3() -> *const EVP_MD;
+    pub fn EVP_des_ecb() -> *const EVP_CIPHER;
+    pub fn EVP_des_ede3() -> *const EVP_CIPHER;
+    pub fn EVP_des_ede3_cbc() -> *const EVP_CIPHER;
+    pub fn EVP_des_ede3_cfb64() -> *const EVP_CIPHER;
+    pub fn EVP_des_cbc() -> *const EVP_CIPHER;
+    #[cfg(not(osslconf = "OPENSSL_NO_RC4"))]
+    pub fn EVP_rc4() -> *const EVP_CIPHER;
+    pub fn EVP_bf_ecb() -> *const EVP_CIPHER;
+    pub fn EVP_bf_cbc() -> *const EVP_CIPHER;
+    pub fn EVP_bf_cfb64() -> *const EVP_CIPHER;
+    pub fn EVP_bf_ofb() -> *const EVP_CIPHER;
+    pub fn EVP_aes_128_ecb() -> *const EVP_CIPHER;
+    pub fn EVP_aes_128_cbc() -> *const EVP_CIPHER;
+    pub fn EVP_aes_128_cfb1() -> *const EVP_CIPHER;
+    pub fn EVP_aes_128_cfb8() -> *const EVP_CIPHER;
+    pub fn EVP_aes_128_cfb128() -> *const EVP_CIPHER;
+    pub fn EVP_aes_128_ctr() -> *const EVP_CIPHER;
+    pub fn EVP_aes_128_ccm() -> *const EVP_CIPHER;
+    pub fn EVP_aes_128_gcm() -> *const EVP_CIPHER;
+    pub fn EVP_aes_128_xts() -> *const EVP_CIPHER;
+    pub fn EVP_aes_128_ofb() -> *const EVP_CIPHER;
+    #[cfg(ossl110)]
+    pub fn EVP_aes_128_ocb() -> *const EVP_CIPHER;
+    #[cfg(ossl102)]
+    pub fn EVP_aes_128_wrap() -> *const EVP_CIPHER;
+    #[cfg(ossl110)]
+    pub fn EVP_aes_128_wrap_pad() -> *const EVP_CIPHER;
+    pub fn EVP_aes_192_ecb() -> *const EVP_CIPHER;
+    pub fn EVP_aes_192_cbc() -> *const EVP_CIPHER;
+    pub fn EVP_aes_192_cfb1() -> *const EVP_CIPHER;
+    pub fn EVP_aes_192_cfb8() -> *const EVP_CIPHER;
+    pub fn EVP_aes_192_cfb128() -> *const EVP_CIPHER;
+    pub fn EVP_aes_192_ctr() -> *const EVP_CIPHER;
+    pub fn EVP_aes_192_ccm() -> *const EVP_CIPHER;
+    pub fn EVP_aes_192_gcm() -> *const EVP_CIPHER;
+    pub fn EVP_aes_192_ofb() -> *const EVP_CIPHER;
+    #[cfg(ossl110)]
+    pub fn EVP_aes_192_ocb() -> *const EVP_CIPHER;
+    #[cfg(ossl102)]
+    pub fn EVP_aes_192_wrap() -> *const EVP_CIPHER;
+    #[cfg(ossl110)]
+    pub fn EVP_aes_192_wrap_pad() -> *const EVP_CIPHER;
+    pub fn EVP_aes_256_ecb() -> *const EVP_CIPHER;
+    pub fn EVP_aes_256_cbc() -> *const EVP_CIPHER;
+    pub fn EVP_aes_256_cfb1() -> *const EVP_CIPHER;
+    pub fn EVP_aes_256_cfb8() -> *const EVP_CIPHER;
+    pub fn EVP_aes_256_cfb128() -> *const EVP_CIPHER;
+    pub fn EVP_aes_256_ctr() -> *const EVP_CIPHER;
+    pub fn EVP_aes_256_ccm() -> *const EVP_CIPHER;
+    pub fn EVP_aes_256_gcm() -> *const EVP_CIPHER;
+    pub fn EVP_aes_256_xts() -> *const EVP_CIPHER;
+    pub fn EVP_aes_256_ofb() -> *const EVP_CIPHER;
+    #[cfg(ossl110)]
+    pub fn EVP_aes_256_ocb() -> *const EVP_CIPHER;
+    #[cfg(ossl102)]
+    pub fn EVP_aes_256_wrap() -> *const EVP_CIPHER;
+    #[cfg(ossl110)]
+    pub fn EVP_aes_256_wrap_pad() -> *const EVP_CIPHER;
+    #[cfg(all(ossl110, not(osslconf = "OPENSSL_NO_CHACHA")))]
+    pub fn EVP_chacha20() -> *const EVP_CIPHER;
+    #[cfg(all(any(ossl110, libressl360), not(osslconf = "OPENSSL_NO_CHACHA")))]
+    pub fn EVP_chacha20_poly1305() -> *const EVP_CIPHER;
+    #[cfg(not(osslconf = "OPENSSL_NO_SEED"))]
+    pub fn EVP_seed_cbc() -> *const EVP_CIPHER;
+    #[cfg(not(osslconf = "OPENSSL_NO_SEED"))]
+    pub fn EVP_seed_cfb128() -> *const EVP_CIPHER;
+    #[cfg(not(osslconf = "OPENSSL_NO_SEED"))]
+    pub fn EVP_seed_ecb() -> *const EVP_CIPHER;
+    #[cfg(not(osslconf = "OPENSSL_NO_SEED"))]
+    pub fn EVP_seed_ofb() -> *const EVP_CIPHER;
+
+    #[cfg(all(any(ossl111, libressl291), not(osslconf = "OPENSSL_NO_SM4")))]
+    pub fn EVP_sm4_ecb() -> *const EVP_CIPHER;
+    #[cfg(all(any(ossl111, libressl291), not(osslconf = "OPENSSL_NO_SM4")))]
+    pub fn EVP_sm4_cbc() -> *const EVP_CIPHER;
+    #[cfg(all(any(ossl111, libressl291), not(osslconf = "OPENSSL_NO_SM4")))]
+    pub fn EVP_sm4_cfb128() -> *const EVP_CIPHER;
+    #[cfg(all(any(ossl111, libressl291), not(osslconf = "OPENSSL_NO_SM4")))]
+    pub fn EVP_sm4_ofb() -> *const EVP_CIPHER;
+    #[cfg(all(any(ossl111, libressl291), not(osslconf = "OPENSSL_NO_SM4")))]
+    pub fn EVP_sm4_ctr() -> *const EVP_CIPHER;
+
+    #[cfg(not(any(boringssl, osslconf = "OPENSSL_NO_CAMELLIA")))]
+    pub fn EVP_camellia_128_cfb128() -> *const EVP_CIPHER;
+    #[cfg(not(any(boringssl, osslconf = "OPENSSL_NO_CAMELLIA")))]
+    pub fn EVP_camellia_128_ecb() -> *const EVP_CIPHER;
+    #[cfg(not(any(boringssl, osslconf = "OPENSSL_NO_CAMELLIA")))]
+    pub fn EVP_camellia_192_cfb128() -> *const EVP_CIPHER;
+    #[cfg(not(any(boringssl, osslconf = "OPENSSL_NO_CAMELLIA")))]
+    pub fn EVP_camellia_192_ecb() -> *const EVP_CIPHER;
+    #[cfg(not(any(boringssl, osslconf = "OPENSSL_NO_CAMELLIA")))]
+    pub fn EVP_camellia_256_cfb128() -> *const EVP_CIPHER;
+    #[cfg(not(any(boringssl, osslconf = "OPENSSL_NO_CAMELLIA")))]
+    pub fn EVP_camellia_256_ecb() -> *const EVP_CIPHER;
+
+    #[cfg(not(any(boringssl, osslconf = "OPENSSL_NO_CAST")))]
+    pub fn EVP_cast5_cfb64() -> *const EVP_CIPHER;
+    #[cfg(not(any(boringssl, osslconf = "OPENSSL_NO_CAST")))]
+    pub fn EVP_cast5_ecb() -> *const EVP_CIPHER;
+
+    #[cfg(not(any(boringssl, osslconf = "OPENSSL_NO_IDEA")))]
+    pub fn EVP_idea_cfb64() -> *const EVP_CIPHER;
+    #[cfg(not(any(boringssl, osslconf = "OPENSSL_NO_IDEA")))]
+    pub fn EVP_idea_ecb() -> *const EVP_CIPHER;
+
+    #[cfg(not(ossl110))]
+    pub fn OPENSSL_add_all_algorithms_noconf();
+
+    pub fn EVP_get_digestbyname(name: *const c_char) -> *const EVP_MD;
+    pub fn EVP_get_cipherbyname(name: *const c_char) -> *const EVP_CIPHER;
+}
+
+cfg_if! {
+    if #[cfg(ossl300)] {
+        extern "C" {
+            pub fn EVP_PKEY_get_id(pkey: *const EVP_PKEY) -> c_int;
+            pub fn EVP_PKEY_get_bits(key: *const EVP_PKEY) -> c_int;
+            pub fn EVP_PKEY_get_security_bits(key: *const EVP_PKEY) -> c_int;
+        }
+    } else {
+        extern "C" {
+            pub fn EVP_PKEY_id(pkey: *const EVP_PKEY) -> c_int;
+        }
+        const_ptr_api! {
+            extern "C" {
+                pub fn EVP_PKEY_bits(key: #[const_ptr_if(any(ossl110, libressl280))] EVP_PKEY) -> c_int;
+                #[cfg(any(ossl110, libressl360))]
+                pub fn EVP_PKEY_security_bits(pkey: #[const_ptr_if(any(ossl110, libressl280))] EVP_PKEY) -> c_int;
+            }
+        }
+    }
+}
+extern "C" {
+    pub fn EVP_PKEY_assign(pkey: *mut EVP_PKEY, typ: c_int, key: *mut c_void) -> c_int;
+
+    pub fn EVP_PKEY_set1_RSA(k: *mut EVP_PKEY, r: *mut RSA) -> c_int;
+    pub fn EVP_PKEY_get1_RSA(k: *mut EVP_PKEY) -> *mut RSA;
+    pub fn EVP_PKEY_get1_DSA(k: *mut EVP_PKEY) -> *mut DSA;
+    pub fn EVP_PKEY_get1_DH(k: *mut EVP_PKEY) -> *mut DH;
+    pub fn EVP_PKEY_get1_EC_KEY(k: *mut EVP_PKEY) -> *mut EC_KEY;
+
+    pub fn EVP_PKEY_new() -> *mut EVP_PKEY;
+    pub fn EVP_PKEY_free(k: *mut EVP_PKEY);
+    #[cfg(any(ossl110, libressl270))]
+    pub fn EVP_PKEY_up_ref(pkey: *mut EVP_PKEY) -> c_int;
+
+    pub fn d2i_AutoPrivateKey(
+        a: *mut *mut EVP_PKEY,
+        pp: *mut *const c_uchar,
+        length: c_long,
+    ) -> *mut EVP_PKEY;
+
+    pub fn EVP_PKEY_cmp(a: *const EVP_PKEY, b: *const EVP_PKEY) -> c_int;
+
+    pub fn EVP_PKEY_copy_parameters(to: *mut EVP_PKEY, from: *const EVP_PKEY) -> c_int;
+
+    pub fn PKCS5_PBKDF2_HMAC_SHA1(
+        pass: *const c_char,
+        passlen: c_int,
+        salt: *const u8,
+        saltlen: c_int,
+        iter: c_int,
+        keylen: c_int,
+        out: *mut u8,
+    ) -> c_int;
+    pub fn PKCS5_PBKDF2_HMAC(
+        pass: *const c_char,
+        passlen: c_int,
+        salt: *const c_uchar,
+        saltlen: c_int,
+        iter: c_int,
+        digest: *const EVP_MD,
+        keylen: c_int,
+        out: *mut u8,
+    ) -> c_int;
+
+    #[cfg(ossl110)]
+    pub fn EVP_PBE_scrypt(
+        pass: *const c_char,
+        passlen: size_t,
+        salt: *const c_uchar,
+        saltlen: size_t,
+        N: u64,
+        r: u64,
+        p: u64,
+        maxmem: u64,
+        key: *mut c_uchar,
+        keylen: size_t,
+    ) -> c_int;
+
+    pub fn EVP_PKEY_CTX_new(k: *mut EVP_PKEY, e: *mut ENGINE) -> *mut EVP_PKEY_CTX;
+    pub fn EVP_PKEY_CTX_new_id(id: c_int, e: *mut ENGINE) -> *mut EVP_PKEY_CTX;
+    pub fn EVP_PKEY_CTX_free(ctx: *mut EVP_PKEY_CTX);
+
+    pub fn EVP_PKEY_CTX_ctrl(
+        ctx: *mut EVP_PKEY_CTX,
+        keytype: c_int,
+        optype: c_int,
+        cmd: c_int,
+        p1: c_int,
+        p2: *mut c_void,
+    ) -> c_int;
+
+    #[cfg(ossl300)]
+    pub fn EVP_PKEY_CTX_set_signature_md(ctx: *mut EVP_PKEY_CTX, md: *const EVP_MD) -> c_int;
+
+    pub fn EVP_PKEY_new_mac_key(
+        type_: c_int,
+        e: *mut ENGINE,
+        key: *const c_uchar,
+        keylen: c_int,
+    ) -> *mut EVP_PKEY;
+
+    pub fn EVP_PKEY_derive_init(ctx: *mut EVP_PKEY_CTX) -> c_int;
+    pub fn EVP_PKEY_derive_set_peer(ctx: *mut EVP_PKEY_CTX, peer: *mut EVP_PKEY) -> c_int;
+    #[cfg(ossl300)]
+    pub fn EVP_PKEY_derive_set_peer_ex(
+        ctx: *mut EVP_PKEY_CTX,
+        peer: *mut EVP_PKEY,
+        validate_peer: c_int,
+    ) -> c_int;
+    pub fn EVP_PKEY_derive(ctx: *mut EVP_PKEY_CTX, key: *mut c_uchar, size: *mut size_t) -> c_int;
+
+    #[cfg(ossl300)]
+    pub fn EVP_PKEY_Q_keygen(
+        libctx: *mut OSSL_LIB_CTX,
+        propq: *const c_char,
+        type_: *const c_char,
+        ...
+    ) -> *mut EVP_PKEY;
+    pub fn EVP_PKEY_keygen_init(ctx: *mut EVP_PKEY_CTX) -> c_int;
+    pub fn EVP_PKEY_keygen(ctx: *mut EVP_PKEY_CTX, key: *mut *mut EVP_PKEY) -> c_int;
+
+    pub fn EVP_PKEY_sign_init(ctx: *mut EVP_PKEY_CTX) -> c_int;
+    pub fn EVP_PKEY_sign(
+        ctx: *mut EVP_PKEY_CTX,
+        sig: *mut c_uchar,
+        siglen: *mut size_t,
+        tbs: *const c_uchar,
+        tbslen: size_t,
+    ) -> c_int;
+    pub fn EVP_PKEY_verify_init(ctx: *mut EVP_PKEY_CTX) -> c_int;
+    pub fn EVP_PKEY_verify(
+        ctx: *mut EVP_PKEY_CTX,
+        sig: *const c_uchar,
+        siglen: size_t,
+        tbs: *const c_uchar,
+        tbslen: size_t,
+    ) -> c_int;
+    pub fn EVP_PKEY_encrypt_init(ctx: *mut EVP_PKEY_CTX) -> c_int;
+    pub fn EVP_PKEY_encrypt(
+        ctx: *mut EVP_PKEY_CTX,
+        pout: *mut c_uchar,
+        poutlen: *mut size_t,
+        pin: *const c_uchar,
+        pinlen: size_t,
+    ) -> c_int;
+    pub fn EVP_PKEY_decrypt_init(ctx: *mut EVP_PKEY_CTX) -> c_int;
+    pub fn EVP_PKEY_decrypt(
+        ctx: *mut EVP_PKEY_CTX,
+        pout: *mut c_uchar,
+        poutlen: *mut size_t,
+        pin: *const c_uchar,
+        pinlen: size_t,
+    ) -> c_int;
+    pub fn EVP_PKEY_verify_recover_init(ctx: *mut EVP_PKEY_CTX) -> c_int;
+    pub fn EVP_PKEY_verify_recover(
+        ctx: *mut EVP_PKEY_CTX,
+        rout: *mut c_uchar,
+        routlen: *mut size_t,
+        sig: *const c_uchar,
+        siglen: size_t,
+    ) -> c_int;
+}
+
+const_ptr_api! {
+    extern "C" {
+        pub fn EVP_PKCS82PKEY(p8: #[const_ptr_if(any(ossl110, libressl280))] PKCS8_PRIV_KEY_INFO) -> *mut EVP_PKEY;
+    }
+}
+
+cfg_if! {
+    if #[cfg(any(ossl111, libressl370))] {
+        extern "C" {
+            pub fn EVP_PKEY_get_raw_public_key(
+                pkey: *const EVP_PKEY,
+                ppub: *mut c_uchar,
+                len: *mut size_t,
+            ) -> c_int;
+            pub fn EVP_PKEY_new_raw_public_key(
+                ttype: c_int,
+                e: *mut ENGINE,
+                key: *const c_uchar,
+                keylen: size_t,
+            ) -> *mut EVP_PKEY;
+            pub fn EVP_PKEY_get_raw_private_key(
+                pkey: *const EVP_PKEY,
+                ppriv: *mut c_uchar,
+                len: *mut size_t,
+            ) -> c_int;
+            pub fn EVP_PKEY_new_raw_private_key(
+                ttype: c_int,
+                e: *mut ENGINE,
+                key: *const c_uchar,
+                keylen: size_t,
+            ) -> *mut EVP_PKEY;
+        }
+    }
+}
+
+extern "C" {
+    pub fn EVP_EncodeBlock(dst: *mut c_uchar, src: *const c_uchar, src_len: c_int) -> c_int;
+    pub fn EVP_DecodeBlock(dst: *mut c_uchar, src: *const c_uchar, src_len: c_int) -> c_int;
+}
diff --git a/vendor/openssl-sys/src/handwritten/hmac.rs b/vendor/openssl-sys/src/handwritten/hmac.rs
new file mode 100644
index 0000000..b52d63f
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/hmac.rs
@@ -0,0 +1,30 @@
+use libc::*;
+
+use super::super::*;
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl350))] {
+        extern "C" {
+            pub fn HMAC_CTX_new() -> *mut HMAC_CTX;
+            pub fn HMAC_CTX_free(ctx: *mut HMAC_CTX);
+        }
+    } else {
+        extern "C" {
+            pub fn HMAC_CTX_init(ctx: *mut HMAC_CTX);
+            pub fn HMAC_CTX_cleanup(ctx: *mut HMAC_CTX);
+        }
+    }
+}
+
+extern "C" {
+    pub fn HMAC_Init_ex(
+        ctx: *mut HMAC_CTX,
+        key: *const c_void,
+        len: c_int,
+        md: *const EVP_MD,
+        impl_: *mut ENGINE,
+    ) -> c_int;
+    pub fn HMAC_Update(ctx: *mut HMAC_CTX, data: *const c_uchar, len: size_t) -> c_int;
+    pub fn HMAC_Final(ctx: *mut HMAC_CTX, md: *mut c_uchar, len: *mut c_uint) -> c_int;
+    pub fn HMAC_CTX_copy(dst: *mut HMAC_CTX, src: *mut HMAC_CTX) -> c_int;
+}
diff --git a/vendor/openssl-sys/src/handwritten/kdf.rs b/vendor/openssl-sys/src/handwritten/kdf.rs
new file mode 100644
index 0000000..0f14b63
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/kdf.rs
@@ -0,0 +1,26 @@
+use super::super::*;
+use libc::*;
+
+cfg_if! {
+    if #[cfg(ossl300)] {
+        extern "C" {
+            pub fn EVP_PKEY_CTX_set_hkdf_mode(ctx: *mut EVP_PKEY_CTX, mode: c_int) -> c_int;
+            pub fn EVP_PKEY_CTX_set_hkdf_md(ctx: *mut EVP_PKEY_CTX, md: *const EVP_MD) -> c_int;
+            pub fn EVP_PKEY_CTX_set1_hkdf_salt(
+                ctx: *mut EVP_PKEY_CTX,
+                salt: *const u8,
+                saltlen: c_int,
+            ) -> c_int;
+            pub fn EVP_PKEY_CTX_set1_hkdf_key(
+                ctx: *mut EVP_PKEY_CTX,
+                key: *const u8,
+                keylen: c_int,
+            ) -> c_int;
+            pub fn EVP_PKEY_CTX_add1_hkdf_info(
+                ctx: *mut EVP_PKEY_CTX,
+                info: *const u8,
+                infolen: c_int,
+            ) -> c_int;
+        }
+    }
+}
diff --git a/vendor/openssl-sys/src/handwritten/mod.rs b/vendor/openssl-sys/src/handwritten/mod.rs
new file mode 100644
index 0000000..d3adfa5
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/mod.rs
@@ -0,0 +1,71 @@
+pub use self::aes::*;
+pub use self::asn1::*;
+pub use self::bio::*;
+pub use self::bn::*;
+pub use self::cmac::*;
+pub use self::cms::*;
+pub use self::conf::*;
+pub use self::crypto::*;
+pub use self::dh::*;
+pub use self::dsa::*;
+pub use self::ec::*;
+pub use self::err::*;
+pub use self::evp::*;
+pub use self::hmac::*;
+pub use self::kdf::*;
+pub use self::object::*;
+pub use self::ocsp::*;
+pub use self::pem::*;
+pub use self::pkcs12::*;
+pub use self::pkcs7::*;
+#[cfg(libressl)]
+pub use self::poly1305::*;
+pub use self::provider::*;
+pub use self::rand::*;
+pub use self::rsa::*;
+pub use self::safestack::*;
+pub use self::sha::*;
+pub use self::srtp::*;
+pub use self::ssl::*;
+pub use self::stack::*;
+pub use self::tls1::*;
+pub use self::types::*;
+pub use self::x509::*;
+pub use self::x509_vfy::*;
+pub use self::x509v3::*;
+
+mod aes;
+mod asn1;
+mod bio;
+mod bn;
+mod cmac;
+mod cms;
+mod conf;
+mod crypto;
+mod dh;
+mod dsa;
+mod ec;
+mod err;
+mod evp;
+mod hmac;
+mod kdf;
+mod object;
+mod ocsp;
+mod pem;
+mod pkcs12;
+mod pkcs7;
+#[cfg(libressl)]
+mod poly1305;
+mod provider;
+mod rand;
+mod rsa;
+mod safestack;
+mod sha;
+mod srtp;
+mod ssl;
+mod stack;
+mod tls1;
+mod types;
+mod x509;
+mod x509_vfy;
+mod x509v3;
diff --git a/vendor/openssl-sys/src/handwritten/object.rs b/vendor/openssl-sys/src/handwritten/object.rs
new file mode 100644
index 0000000..6160fad
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/object.rs
@@ -0,0 +1,31 @@
+use libc::*;
+
+use super::super::*;
+
+extern "C" {
+    pub fn OBJ_nid2ln(nid: c_int) -> *const c_char;
+    pub fn OBJ_nid2sn(nid: c_int) -> *const c_char;
+    pub fn OBJ_nid2obj(n: c_int) -> *mut ASN1_OBJECT;
+    pub fn OBJ_obj2nid(o: *const ASN1_OBJECT) -> c_int;
+    pub fn OBJ_obj2txt(
+        buf: *mut c_char,
+        buf_len: c_int,
+        a: *const ASN1_OBJECT,
+        no_name: c_int,
+    ) -> c_int;
+
+    pub fn OBJ_find_sigid_algs(signid: c_int, pdig_nid: *mut c_int, ppkey_nid: *mut c_int)
+        -> c_int;
+    pub fn OBJ_sn2nid(sn: *const libc::c_char) -> libc::c_int;
+    pub fn OBJ_txt2obj(s: *const libc::c_char, no_name: libc::c_int) -> *mut ASN1_OBJECT;
+    pub fn OBJ_create(
+        oid: *const libc::c_char,
+        sn: *const libc::c_char,
+        ln: *const libc::c_char,
+    ) -> c_int;
+    #[cfg(ossl111)]
+    pub fn OBJ_length(obj: *const ASN1_OBJECT) -> libc::size_t;
+    #[cfg(ossl111)]
+    pub fn OBJ_get0_data(obj: *const ASN1_OBJECT) -> *const c_uchar;
+    pub fn OBJ_cmp(a: *const ASN1_OBJECT, b: *const ASN1_OBJECT) -> c_int;
+}
diff --git a/vendor/openssl-sys/src/handwritten/ocsp.rs b/vendor/openssl-sys/src/handwritten/ocsp.rs
new file mode 100644
index 0000000..c194a83
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/ocsp.rs
@@ -0,0 +1,89 @@
+use super::super::*;
+use libc::*;
+
+pub enum OCSP_CERTID {}
+
+pub enum OCSP_ONEREQ {}
+
+pub enum OCSP_REQUEST {}
+
+pub enum OCSP_BASICRESP {}
+
+const_ptr_api! {
+    extern "C" {
+        pub fn OCSP_cert_to_id(
+            dgst: *const EVP_MD,
+            subject: #[const_ptr_if(any(ossl110, libressl281))] X509,
+            issuer: #[const_ptr_if(any(ossl110, libressl281))] X509,
+        ) -> *mut OCSP_CERTID;
+    }
+}
+
+extern "C" {
+    pub fn OCSP_request_add0_id(r: *mut OCSP_REQUEST, id: *mut OCSP_CERTID) -> *mut OCSP_ONEREQ;
+
+    pub fn OCSP_resp_find_status(
+        bs: *mut OCSP_BASICRESP,
+        id: *mut OCSP_CERTID,
+        status: *mut c_int,
+        reason: *mut c_int,
+        revtime: *mut *mut ASN1_GENERALIZEDTIME,
+        thisupd: *mut *mut ASN1_GENERALIZEDTIME,
+        nextupd: *mut *mut ASN1_GENERALIZEDTIME,
+    ) -> c_int;
+    pub fn OCSP_check_validity(
+        thisupd: *mut ASN1_GENERALIZEDTIME,
+        nextupd: *mut ASN1_GENERALIZEDTIME,
+        sec: c_long,
+        maxsec: c_long,
+    ) -> c_int;
+
+    pub fn OCSP_response_status(resp: *mut OCSP_RESPONSE) -> c_int;
+    pub fn OCSP_response_get1_basic(resp: *mut OCSP_RESPONSE) -> *mut OCSP_BASICRESP;
+
+    pub fn OCSP_response_create(status: c_int, bs: *mut OCSP_BASICRESP) -> *mut OCSP_RESPONSE;
+
+    pub fn OCSP_BASICRESP_new() -> *mut OCSP_BASICRESP;
+    pub fn OCSP_BASICRESP_free(r: *mut OCSP_BASICRESP);
+    pub fn OCSP_RESPONSE_new() -> *mut OCSP_RESPONSE;
+    pub fn OCSP_RESPONSE_free(r: *mut OCSP_RESPONSE);
+}
+
+const_ptr_api! {
+    extern "C" {
+        pub fn i2d_OCSP_RESPONSE(a: #[const_ptr_if(ossl300)] OCSP_RESPONSE, pp: *mut *mut c_uchar) -> c_int;
+    }
+}
+
+extern "C" {
+    pub fn d2i_OCSP_RESPONSE(
+        a: *mut *mut OCSP_RESPONSE,
+        pp: *mut *const c_uchar,
+        length: c_long,
+    ) -> *mut OCSP_RESPONSE;
+    pub fn OCSP_ONEREQ_free(r: *mut OCSP_ONEREQ);
+    pub fn OCSP_CERTID_free(id: *mut OCSP_CERTID);
+    pub fn OCSP_REQUEST_new() -> *mut OCSP_REQUEST;
+    pub fn OCSP_REQUEST_free(r: *mut OCSP_REQUEST);
+}
+
+const_ptr_api! {
+    extern "C" {
+        pub fn i2d_OCSP_REQUEST(a: #[const_ptr_if(ossl300)] OCSP_REQUEST, pp: *mut *mut c_uchar) -> c_int;
+    }
+}
+
+extern "C" {
+    pub fn d2i_OCSP_REQUEST(
+        a: *mut *mut OCSP_REQUEST,
+        pp: *mut *const c_uchar,
+        length: c_long,
+    ) -> *mut OCSP_REQUEST;
+
+    pub fn OCSP_basic_verify(
+        bs: *mut OCSP_BASICRESP,
+        certs: *mut stack_st_X509,
+        st: *mut X509_STORE,
+        flags: c_ulong,
+    ) -> c_int;
+}
diff --git a/vendor/openssl-sys/src/handwritten/pem.rs b/vendor/openssl-sys/src/handwritten/pem.rs
new file mode 100644
index 0000000..4299717
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/pem.rs
@@ -0,0 +1,191 @@
+use super::super::*;
+use libc::*;
+
+pub type pem_password_cb = Option<
+    unsafe extern "C" fn(
+        buf: *mut c_char,
+        size: c_int,
+        rwflag: c_int,
+        user_data: *mut c_void,
+    ) -> c_int,
+>;
+
+const_ptr_api! {
+    extern "C" {
+        pub fn PEM_write_bio_X509(bio: *mut BIO, x509: #[const_ptr_if(ossl300)] X509) -> c_int;
+        pub fn PEM_write_bio_X509_REQ(bio: *mut BIO, x509: #[const_ptr_if(ossl300)] X509_REQ) -> c_int;
+        pub fn PEM_write_bio_X509_CRL(bio: *mut BIO, x509: #[const_ptr_if(ossl300)] X509_CRL) -> c_int;
+        pub fn PEM_write_bio_RSAPrivateKey(
+            bp: *mut BIO,
+            rsa: #[const_ptr_if(ossl300)] RSA,
+            cipher: *const EVP_CIPHER,
+            kstr: #[const_ptr_if(ossl300)] c_uchar,
+            klen: c_int,
+            callback: pem_password_cb,
+            user_data: *mut c_void,
+        ) -> c_int;
+        pub fn PEM_write_bio_RSA_PUBKEY(bp: *mut BIO, rsa: #[const_ptr_if(ossl300)] RSA) -> c_int;
+        pub fn PEM_write_bio_DSAPrivateKey(
+            bp: *mut BIO,
+            dsa: #[const_ptr_if(ossl300)] DSA,
+            cipher: *const EVP_CIPHER,
+            kstr: #[const_ptr_if(ossl300)] c_uchar,
+            klen: c_int,
+            callback: pem_password_cb,
+            user_data: *mut c_void,
+        ) -> c_int;
+        pub fn PEM_write_bio_ECPrivateKey(
+            bio: *mut BIO,
+            key: #[const_ptr_if(ossl300)] EC_KEY,
+            cipher: *const EVP_CIPHER,
+            kstr: #[const_ptr_if(ossl300)] c_uchar,
+            klen: c_int,
+            callback: pem_password_cb,
+            user_data: *mut c_void,
+        ) -> c_int;
+        pub fn PEM_write_bio_DSA_PUBKEY(bp: *mut BIO, dsa: #[const_ptr_if(ossl300)] DSA) -> c_int;
+        pub fn PEM_write_bio_PrivateKey(
+            bio: *mut BIO,
+            pkey: #[const_ptr_if(ossl300)] EVP_PKEY,
+            cipher: *const EVP_CIPHER,
+            kstr: #[const_ptr_if(ossl300)] c_uchar,
+            klen: c_int,
+            callback: pem_password_cb,
+            user_data: *mut c_void,
+        ) -> c_int;
+        pub fn PEM_write_bio_PUBKEY(bp: *mut BIO, x: #[const_ptr_if(ossl300)] EVP_PKEY) -> c_int;
+        pub fn PEM_write_bio_PKCS8PrivateKey(
+            bio: *mut BIO,
+            pkey: #[const_ptr_if(ossl300)] EVP_PKEY,
+            cipher: *const EVP_CIPHER,
+            kstr: #[const_ptr_if(ossl300)] c_char,
+            klen: c_int,
+            callback: pem_password_cb,
+            user_data: *mut c_void,
+        ) -> c_int;
+        pub fn PEM_write_bio_PKCS7(bp: *mut BIO, x: #[const_ptr_if(ossl300)] PKCS7) -> c_int;
+        pub fn PEM_write_bio_EC_PUBKEY(bp: *mut BIO, ec: #[const_ptr_if(ossl300)] EC_KEY) -> c_int;
+        pub fn i2d_PKCS8PrivateKey_bio(
+            bp: *mut BIO,
+            x: #[const_ptr_if(ossl300)] EVP_PKEY,
+            enc: *const EVP_CIPHER,
+            kstr: #[const_ptr_if(ossl300)] c_char,
+            klen: c_int,
+            cb: pem_password_cb,
+            u: *mut c_void,
+        ) -> c_int;
+    }
+}
+
+extern "C" {
+    pub fn PEM_read_bio_X509(
+        bio: *mut BIO,
+        out: *mut *mut X509,
+        callback: pem_password_cb,
+        user_data: *mut c_void,
+    ) -> *mut X509;
+    pub fn PEM_read_bio_X509_REQ(
+        bio: *mut BIO,
+        out: *mut *mut X509_REQ,
+        callback: pem_password_cb,
+        user_data: *mut c_void,
+    ) -> *mut X509_REQ;
+    pub fn PEM_read_bio_X509_CRL(
+        bio: *mut BIO,
+        out: *mut *mut X509_CRL,
+        callback: pem_password_cb,
+        user_data: *mut c_void,
+    ) -> *mut X509_CRL;
+    pub fn PEM_read_bio_RSAPrivateKey(
+        bio: *mut BIO,
+        rsa: *mut *mut RSA,
+        callback: pem_password_cb,
+        user_data: *mut c_void,
+    ) -> *mut RSA;
+    pub fn PEM_read_bio_RSAPublicKey(
+        bio: *mut BIO,
+        rsa: *mut *mut RSA,
+        callback: pem_password_cb,
+        user_data: *mut c_void,
+    ) -> *mut RSA;
+    pub fn PEM_write_bio_RSAPublicKey(bp: *mut BIO, rsa: *const RSA) -> c_int;
+    pub fn PEM_read_bio_RSA_PUBKEY(
+        bio: *mut BIO,
+        rsa: *mut *mut RSA,
+        callback: pem_password_cb,
+        user_data: *mut c_void,
+    ) -> *mut RSA;
+    pub fn PEM_read_bio_DSAPrivateKey(
+        bp: *mut BIO,
+        dsa: *mut *mut DSA,
+        callback: pem_password_cb,
+        user_data: *mut c_void,
+    ) -> *mut DSA;
+    pub fn PEM_read_bio_DSA_PUBKEY(
+        bp: *mut BIO,
+        dsa: *mut *mut DSA,
+        callback: pem_password_cb,
+        user_data: *mut c_void,
+    ) -> *mut DSA;
+    pub fn PEM_read_bio_ECPrivateKey(
+        bio: *mut BIO,
+        key: *mut *mut EC_KEY,
+        callback: pem_password_cb,
+        user_data: *mut c_void,
+    ) -> *mut EC_KEY;
+    pub fn PEM_read_bio_EC_PUBKEY(
+        bp: *mut BIO,
+        ec: *mut *mut EC_KEY,
+        callback: pem_password_cb,
+        user_data: *mut c_void,
+    ) -> *mut EC_KEY;
+    pub fn PEM_read_bio_DHparams(
+        bio: *mut BIO,
+        out: *mut *mut DH,
+        callback: pem_password_cb,
+        user_data: *mut c_void,
+    ) -> *mut DH;
+    pub fn PEM_write_bio_DHparams(bio: *mut BIO, x: *const DH) -> c_int;
+    pub fn PEM_read_bio_PrivateKey(
+        bio: *mut BIO,
+        out: *mut *mut EVP_PKEY,
+        callback: pem_password_cb,
+        user_data: *mut c_void,
+    ) -> *mut EVP_PKEY;
+    pub fn PEM_read_bio_PUBKEY(
+        bio: *mut BIO,
+        out: *mut *mut EVP_PKEY,
+        callback: pem_password_cb,
+        user_data: *mut c_void,
+    ) -> *mut EVP_PKEY;
+
+    pub fn d2i_PKCS8PrivateKey_bio(
+        bp: *mut BIO,
+        x: *mut *mut EVP_PKEY,
+        cb: pem_password_cb,
+        u: *mut c_void,
+    ) -> *mut EVP_PKEY;
+    pub fn d2i_PKCS8_PRIV_KEY_INFO(
+        k: *mut *mut PKCS8_PRIV_KEY_INFO,
+        buf: *mut *const u8,
+        length: c_long,
+    ) -> *mut PKCS8_PRIV_KEY_INFO;
+    pub fn PKCS8_PRIV_KEY_INFO_free(p8inf: *mut PKCS8_PRIV_KEY_INFO);
+
+    pub fn PEM_read_bio_PKCS7(
+        bio: *mut BIO,
+        out: *mut *mut PKCS7,
+        cb: pem_password_cb,
+        u: *mut c_void,
+    ) -> *mut PKCS7;
+
+    #[cfg(ossl101)]
+    pub fn PEM_read_bio_CMS(
+        bio: *mut BIO,
+        out: *mut *mut CMS_ContentInfo,
+        callback: pem_password_cb,
+        user_data: *mut c_void,
+    ) -> *mut CMS_ContentInfo;
+    #[cfg(ossl101)]
+    pub fn PEM_write_bio_CMS(bio: *mut BIO, cms: *const CMS_ContentInfo) -> c_int;
+}
diff --git a/vendor/openssl-sys/src/handwritten/pkcs12.rs b/vendor/openssl-sys/src/handwritten/pkcs12.rs
new file mode 100644
index 0000000..728c333
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/pkcs12.rs
@@ -0,0 +1,53 @@
+use libc::*;
+
+use super::super::*;
+
+pub enum PKCS12 {}
+
+extern "C" {
+    pub fn PKCS12_free(p12: *mut PKCS12);
+}
+const_ptr_api! {
+    extern "C" {
+        pub fn i2d_PKCS12(a: #[const_ptr_if(ossl300)] PKCS12, buf: *mut *mut u8) -> c_int;
+    }
+}
+extern "C" {
+    pub fn d2i_PKCS12(a: *mut *mut PKCS12, pp: *mut *const u8, length: c_long) -> *mut PKCS12;
+
+    pub fn PKCS12_parse(
+        p12: *mut PKCS12,
+        pass: *const c_char,
+        pkey: *mut *mut EVP_PKEY,
+        cert: *mut *mut X509,
+        ca: *mut *mut stack_st_X509,
+    ) -> c_int;
+
+    pub fn PKCS12_set_mac(
+        p12: *mut PKCS12,
+        pass: *const c_char,
+        passlen: c_int,
+        salt: *mut c_uchar,
+        saltlen: c_int,
+        iter: c_int,
+        md_type: *const EVP_MD,
+    ) -> c_int;
+}
+const_ptr_api! {
+    extern "C" {
+        pub fn PKCS12_create(
+            pass: #[const_ptr_if(any(ossl110, libressl280))] c_char,
+            friendly_name: #[const_ptr_if(any(ossl110, libressl280))] c_char,
+            pkey: *mut EVP_PKEY,
+            cert: *mut X509,
+            ca: *mut stack_st_X509,
+            nid_key: c_int,
+            nid_cert: c_int,
+            iter: c_int,
+            mac_iter: c_int,
+            keytype: c_int,
+        ) -> *mut PKCS12;
+
+        pub fn i2d_PKCS12_bio(b: *mut BIO, a: #[const_ptr_if(ossl300)] PKCS12) -> c_int;
+    }
+}
diff --git a/vendor/openssl-sys/src/handwritten/pkcs7.rs b/vendor/openssl-sys/src/handwritten/pkcs7.rs
new file mode 100644
index 0000000..f46922d
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/pkcs7.rs
@@ -0,0 +1,257 @@
+use super::super::*;
+use libc::*;
+
+#[cfg(ossl300)]
+#[repr(C)]
+pub struct PKCS7_CTX {
+    libctx: *mut OSSL_LIB_CTX,
+    propq: *mut c_char,
+}
+
+#[repr(C)]
+pub struct PKCS7_SIGNED {
+    pub version: *mut ASN1_INTEGER,        /* version 1 */
+    pub md_algs: *mut stack_st_X509_ALGOR, /* md used */
+    pub cert: *mut stack_st_X509,          /* [ 0 ] */
+    pub crl: *mut stack_st_X509_CRL,       /* [ 1 ] */
+    pub signer_info: *mut stack_st_PKCS7_SIGNER_INFO,
+    pub contents: *mut PKCS7,
+}
+#[repr(C)]
+pub struct PKCS7_ENC_CONTENT {
+    pub content_type: *mut ASN1_OBJECT,
+    pub algorithm: *mut X509_ALGOR,
+    pub enc_data: *mut ASN1_OCTET_STRING, /* [ 0 ] */
+    pub cipher: *const EVP_CIPHER,
+    #[cfg(ossl300)]
+    pub ctx: *const PKCS7_CTX,
+}
+#[repr(C)]
+pub struct PKCS7_ENVELOPE {
+    pub version: *mut ASN1_INTEGER, /* version 0 */
+    pub recipientinfo: *mut stack_st_PKCS7_RECIP_INFO,
+    pub enc_data: *mut PKCS7_ENC_CONTENT,
+}
+#[repr(C)]
+pub struct PKCS7_SIGN_ENVELOPE {
+    pub version: *mut ASN1_INTEGER,        /* version 1 */
+    pub md_algs: *mut stack_st_X509_ALGOR, /* md used */
+    pub cert: *mut stack_st_X509,          /* [ 0 ] */
+    pub crl: *mut stack_st_X509_CRL,       /* [ 1 ] */
+    pub signer_info: *mut stack_st_PKCS7_SIGNER_INFO,
+    pub enc_data: *mut PKCS7_ENC_CONTENT,
+    pub recipientinfo: *mut stack_st_PKCS7_RECIP_INFO,
+}
+#[repr(C)]
+pub struct PKCS7_DIGEST {
+    pub version: *mut ASN1_INTEGER, /* version 0 */
+    pub md: *mut X509_ALGOR,        /* md used */
+    pub contents: *mut PKCS7,
+    pub digest: *mut ASN1_OCTET_STRING,
+}
+#[repr(C)]
+pub struct PKCS7_ENCRYPT {
+    pub version: *mut ASN1_INTEGER, /* version 0 */
+    pub enc_data: *mut PKCS7_ENC_CONTENT,
+}
+
+extern "C" {
+    pub fn PKCS7_SIGNED_free(info: *mut PKCS7_SIGNED);
+    pub fn PKCS7_ENC_CONTENT_free(info: *mut PKCS7_ENC_CONTENT);
+    pub fn PKCS7_ENVELOPE_free(info: *mut PKCS7_ENVELOPE);
+    pub fn PKCS7_SIGN_ENVELOPE_free(info: *mut PKCS7_SIGN_ENVELOPE);
+    pub fn PKCS7_DIGEST_free(info: *mut PKCS7_DIGEST);
+    pub fn PKCS7_SIGNER_INFO_free(info: *mut PKCS7_SIGNER_INFO);
+    pub fn PKCS7_ENCRYPT_free(enc: *mut PKCS7_ENCRYPT);
+    pub fn PKCS7_ISSUER_AND_SERIAL_free(ias: *mut PKCS7_ISSUER_AND_SERIAL);
+    pub fn PKCS7_RECIP_INFO_free(info: *mut PKCS7_RECIP_INFO);
+}
+
+#[repr(C)]
+pub struct PKCS7 {
+    /*
+     * The following is non NULL if it contains ASN1 encoding of this
+     * structure
+     */
+    pub asn1: *mut c_uchar,
+    pub length: c_long,
+    // # define PKCS7_S_HEADER  0
+    // # define PKCS7_S_BODY    1
+    // # define PKCS7_S_TAIL    2
+    pub state: c_int, /* used during processing */
+    pub detached: c_int,
+    pub type_: *mut ASN1_OBJECT,
+    /* content as defined by the type */
+    /*
+     * all encryption/message digests are applied to the 'contents', leaving
+     * out the 'type' field.
+     */
+    pub d: PKCS7_data,
+    #[cfg(ossl300)]
+    pub ctx: PKCS7_CTX,
+}
+
+#[repr(C)]
+pub union PKCS7_data {
+    pub ptr: *mut c_char,
+    /* NID_pkcs7_data */
+    pub data: *mut ASN1_OCTET_STRING,
+    /* NID_pkcs7_signed */
+    pub sign: *mut PKCS7_SIGNED,
+    /* NID_pkcs7_enveloped */
+    pub enveloped: *mut PKCS7_ENVELOPE,
+    /* NID_pkcs7_signedAndEnveloped */
+    pub signed_and_enveloped: *mut PKCS7_SIGN_ENVELOPE,
+    /* NID_pkcs7_digest */
+    pub digest: *mut PKCS7_DIGEST,
+    /* NID_pkcs7_encrypted */
+    pub encrypted: *mut PKCS7_ENCRYPT,
+    /* Anything else */
+    pub other: *mut ASN1_TYPE,
+}
+
+#[repr(C)]
+pub struct PKCS7_ISSUER_AND_SERIAL {
+    pub issuer: *mut X509_NAME,
+    pub serial: *mut ASN1_INTEGER,
+}
+
+#[repr(C)]
+pub struct PKCS7_SIGNER_INFO {
+    pub version: *mut ASN1_INTEGER, /* version 1 */
+    pub issuer_and_serial: *mut PKCS7_ISSUER_AND_SERIAL,
+    pub digest_alg: *mut X509_ALGOR,
+    pub auth_attr: *mut stack_st_X509_ATTRIBUTE, /* [ 0 ] */
+    pub digest_enc_alg: *mut X509_ALGOR,
+    pub enc_digest: *mut ASN1_OCTET_STRING,
+    pub unauth_attr: *mut stack_st_X509_ATTRIBUTE, /* [ 1 ] */
+    pub pkey: *mut EVP_PKEY,                       /* The private key to sign with */
+    #[cfg(ossl300)]
+    pub ctx: *const PKCS7_CTX,
+}
+
+stack!(stack_st_PKCS7_SIGNER_INFO);
+
+#[repr(C)]
+pub struct PKCS7_RECIP_INFO {
+    pub version: *mut ASN1_INTEGER, /* version 0 */
+    pub issuer_and_serial: *mut PKCS7_ISSUER_AND_SERIAL,
+    pub key_enc_algor: *mut X509_ALGOR,
+    pub enc_key: *mut ASN1_OCTET_STRING,
+    pub cert: *mut X509, /* get the pub-key from this */
+    #[cfg(ossl300)]
+    pub ctx: *const PKCS7_CTX,
+}
+
+stack!(stack_st_PKCS7_RECIP_INFO);
+
+extern "C" {
+    pub fn d2i_PKCS7(a: *mut *mut PKCS7, pp: *mut *const c_uchar, length: c_long) -> *mut PKCS7;
+}
+
+const_ptr_api! {
+    extern "C" {
+        pub fn i2d_PKCS7(a: #[const_ptr_if(ossl300)] PKCS7, buf: *mut *mut u8) -> c_int;
+        pub fn i2d_PKCS7_bio(bio: *mut BIO, p7: #[const_ptr_if(ossl300)]  PKCS7) -> c_int;
+    }
+}
+
+extern "C" {
+    pub fn PKCS7_encrypt(
+        certs: *mut stack_st_X509,
+        b: *mut BIO,
+        cipher: *const EVP_CIPHER,
+        flags: c_int,
+    ) -> *mut PKCS7;
+
+    pub fn PKCS7_verify(
+        pkcs7: *mut PKCS7,
+        certs: *mut stack_st_X509,
+        store: *mut X509_STORE,
+        indata: *mut BIO,
+        out: *mut BIO,
+        flags: c_int,
+    ) -> c_int;
+
+    pub fn PKCS7_get0_signers(
+        pkcs7: *mut PKCS7,
+        certs: *mut stack_st_X509,
+        flags: c_int,
+    ) -> *mut stack_st_X509;
+
+    pub fn PKCS7_sign(
+        signcert: *mut X509,
+        pkey: *mut EVP_PKEY,
+        certs: *mut stack_st_X509,
+        data: *mut BIO,
+        flags: c_int,
+    ) -> *mut PKCS7;
+
+    pub fn PKCS7_decrypt(
+        pkcs7: *mut PKCS7,
+        pkey: *mut EVP_PKEY,
+        cert: *mut X509,
+        data: *mut BIO,
+        flags: c_int,
+    ) -> c_int;
+
+    pub fn PKCS7_free(pkcs7: *mut PKCS7);
+
+    pub fn SMIME_write_PKCS7(
+        out: *mut BIO,
+        pkcs7: *mut PKCS7,
+        data: *mut BIO,
+        flags: c_int,
+    ) -> c_int;
+
+    pub fn SMIME_read_PKCS7(bio: *mut BIO, bcont: *mut *mut BIO) -> *mut PKCS7;
+
+    pub fn PKCS7_new() -> *mut PKCS7;
+
+    pub fn PKCS7_set_type(p7: *mut PKCS7, nid_pkcs7: c_int) -> c_int;
+
+    pub fn PKCS7_add_certificate(p7: *mut PKCS7, x509: *mut X509) -> c_int;
+
+    pub fn PKCS7_add_signature(
+        p7: *mut PKCS7,
+        x509: *mut X509,
+        pkey: *mut EVP_PKEY,
+        digest: *const EVP_MD,
+    ) -> *mut PKCS7_SIGNER_INFO;
+
+    pub fn PKCS7_set_signed_attributes(
+        p7si: *mut PKCS7_SIGNER_INFO,
+        attributes: *mut stack_st_X509_ATTRIBUTE,
+    ) -> c_int;
+
+    pub fn PKCS7_add_signed_attribute(
+        p7si: *mut PKCS7_SIGNER_INFO,
+        nid: c_int,
+        attrtype: c_int,
+        data: *mut c_void,
+    ) -> c_int;
+
+    pub fn PKCS7_content_new(p7: *mut PKCS7, nid_pkcs7: c_int) -> c_int;
+
+    pub fn PKCS7_dataInit(p7: *mut PKCS7, bio: *mut BIO) -> *mut BIO;
+
+    pub fn PKCS7_dataFinal(p7: *mut PKCS7, bio: *mut BIO) -> c_int;
+
+    pub fn PKCS7_get_signer_info(p7: *mut PKCS7) -> *mut stack_st_PKCS7_SIGNER_INFO;
+
+    pub fn PKCS7_SIGNER_INFO_get0_algs(
+        si: *mut PKCS7_SIGNER_INFO,
+        pk: *mut *mut EVP_PKEY,
+        pdig: *mut *mut X509_ALGOR,
+        psig: *mut *mut X509_ALGOR,
+    );
+}
+
+const_ptr_api! {
+    extern "C" {
+        pub fn PKCS7_get_signed_attribute(
+            si: #[const_ptr_if(ossl300)] PKCS7_SIGNER_INFO,
+            nid: c_int
+        ) -> *mut ASN1_TYPE;
+    }
+}
diff --git a/vendor/openssl-sys/src/handwritten/poly1305.rs b/vendor/openssl-sys/src/handwritten/poly1305.rs
new file mode 100644
index 0000000..8ff22f3
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/poly1305.rs
@@ -0,0 +1,23 @@
+use super::super::*;
+use libc::*;
+
+cfg_if! {
+    if #[cfg(libressl)] {
+        #[repr(C)]
+        #[derive(Debug, Copy, Clone)]
+        pub struct poly1305_context {
+            pub aligner: usize,
+            pub opaque: [::libc::c_uchar; 136usize],
+        }
+        pub type poly1305_state = poly1305_context;
+        extern "C" {
+            pub fn CRYPTO_poly1305_init(ctx: *mut poly1305_context, key: *const ::libc::c_uchar);
+            pub fn CRYPTO_poly1305_update(
+                ctx: *mut poly1305_context,
+                in_: *const ::libc::c_uchar,
+                len: usize,
+            );
+            pub fn CRYPTO_poly1305_finish(ctx: *mut poly1305_context, mac: *mut ::libc::c_uchar);
+        }
+    }
+}
diff --git a/vendor/openssl-sys/src/handwritten/provider.rs b/vendor/openssl-sys/src/handwritten/provider.rs
new file mode 100644
index 0000000..3e18a02
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/provider.rs
@@ -0,0 +1,20 @@
+use super::super::*;
+use libc::*;
+
+extern "C" {
+    #[cfg(ossl300)]
+    pub fn OSSL_PROVIDER_load(ctx: *mut OSSL_LIB_CTX, name: *const c_char) -> *mut OSSL_PROVIDER;
+    #[cfg(ossl300)]
+    pub fn OSSL_PROVIDER_try_load(
+        ctx: *mut OSSL_LIB_CTX,
+        name: *const c_char,
+        retain_fallbacks: c_int,
+    ) -> *mut OSSL_PROVIDER;
+    #[cfg(ossl300)]
+    pub fn OSSL_PROVIDER_unload(prov: *mut OSSL_PROVIDER) -> c_int;
+    #[cfg(ossl300)]
+    pub fn OSSL_PROVIDER_set_default_search_path(
+        ctx: *mut OSSL_LIB_CTX,
+        path: *const c_char,
+    ) -> c_int;
+}
diff --git a/vendor/openssl-sys/src/handwritten/rand.rs b/vendor/openssl-sys/src/handwritten/rand.rs
new file mode 100644
index 0000000..3bf9da5
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/rand.rs
@@ -0,0 +1,12 @@
+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;
+
+    pub fn RAND_add(buf: *const c_void, num: c_int, randomness: c_double);
+}
diff --git a/vendor/openssl-sys/src/handwritten/rsa.rs b/vendor/openssl-sys/src/handwritten/rsa.rs
new file mode 100644
index 0000000..d05edfc
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/rsa.rs
@@ -0,0 +1,124 @@
+use super::super::*;
+use libc::*;
+
+cfg_if! {
+    if #[cfg(ossl300)] {
+        extern "C" {
+            pub fn EVP_PKEY_CTX_set_rsa_padding(ctx: *mut EVP_PKEY_CTX, pad_mode: c_int) -> c_int;
+            pub fn EVP_PKEY_CTX_get_rsa_padding(ctx: *mut EVP_PKEY_CTX, pad_mode: *mut c_int) -> c_int;
+
+            pub fn EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx: *mut EVP_PKEY_CTX, len: c_int) -> c_int;
+            pub fn EVP_PKEY_CTX_set_rsa_mgf1_md(ctx: *mut EVP_PKEY_CTX, md: *const EVP_MD) -> c_int;
+        }
+    }
+}
+
+extern "C" {
+    pub fn RSA_new() -> *mut RSA;
+    pub fn RSA_size(k: *const RSA) -> c_int;
+
+    #[cfg(any(ossl110, libressl273))]
+    pub fn RSA_set0_key(r: *mut RSA, n: *mut BIGNUM, e: *mut BIGNUM, d: *mut BIGNUM) -> c_int;
+    #[cfg(any(ossl110, libressl273))]
+    pub fn RSA_set0_factors(r: *mut RSA, p: *mut BIGNUM, q: *mut BIGNUM) -> c_int;
+    #[cfg(any(ossl110, libressl273))]
+    pub fn RSA_set0_crt_params(
+        r: *mut RSA,
+        dmp1: *mut BIGNUM,
+        dmq1: *mut BIGNUM,
+        iqmp: *mut BIGNUM,
+    ) -> c_int;
+    #[cfg(any(ossl110, libressl273))]
+    pub fn RSA_get0_key(
+        r: *const RSA,
+        n: *mut *const BIGNUM,
+        e: *mut *const BIGNUM,
+        d: *mut *const BIGNUM,
+    );
+    #[cfg(any(ossl110, libressl273))]
+    pub fn RSA_get0_factors(r: *const RSA, p: *mut *const BIGNUM, q: *mut *const BIGNUM);
+    #[cfg(any(ossl110, libressl273))]
+    pub fn RSA_get0_crt_params(
+        r: *const RSA,
+        dmp1: *mut *const BIGNUM,
+        dmq1: *mut *const BIGNUM,
+        iqmp: *mut *const BIGNUM,
+    );
+
+    #[cfg(not(ossl110))]
+    pub fn RSA_generate_key(
+        modsz: c_int,
+        e: c_ulong,
+        cb: Option<extern "C" fn(c_int, c_int, *mut c_void)>,
+        cbarg: *mut c_void,
+    ) -> *mut RSA;
+
+    pub fn RSA_generate_key_ex(
+        rsa: *mut RSA,
+        bits: c_int,
+        e: *mut BIGNUM,
+        cb: *mut BN_GENCB,
+    ) -> 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_private_encrypt(
+        flen: c_int,
+        from: *const u8,
+        to: *mut u8,
+        k: *mut RSA,
+        pad: c_int,
+    ) -> c_int;
+    pub fn RSA_public_decrypt(
+        flen: c_int,
+        from: *const u8,
+        to: *mut u8,
+        k: *mut RSA,
+        pad: c_int,
+    ) -> c_int;
+    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_check_key(r: *const RSA) -> c_int;
+    pub fn RSA_free(rsa: *mut RSA);
+    pub fn RSA_up_ref(rsa: *mut RSA) -> c_int;
+
+    pub fn i2d_RSAPublicKey(k: *const RSA, buf: *mut *mut u8) -> c_int;
+    pub fn d2i_RSAPublicKey(k: *mut *mut RSA, buf: *mut *const u8, len: c_long) -> *mut RSA;
+    pub fn i2d_RSAPrivateKey(k: *const RSA, buf: *mut *mut u8) -> c_int;
+    pub fn d2i_RSAPrivateKey(k: *mut *mut RSA, buf: *mut *const u8, len: c_long) -> *mut RSA;
+
+    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_verify(
+        t: c_int,
+        m: *const u8,
+        mlen: c_uint,
+        sig: *const u8,
+        siglen: c_uint,
+        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;
+}
diff --git a/vendor/openssl-sys/src/handwritten/safestack.rs b/vendor/openssl-sys/src/handwritten/safestack.rs
new file mode 100644
index 0000000..0bee90d
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/safestack.rs
@@ -0,0 +1 @@
+stack!(stack_st_OPENSSL_STRING);
diff --git a/vendor/openssl-sys/src/handwritten/sha.rs b/vendor/openssl-sys/src/handwritten/sha.rs
new file mode 100644
index 0000000..7d00b59
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/sha.rs
@@ -0,0 +1,101 @@
+use super::super::*;
+use libc::*;
+
+cfg_if! {
+    if #[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))] {
+        #[repr(C)]
+        #[derive(Clone)]
+        pub struct SHA_CTX {
+            pub h0: SHA_LONG,
+            pub h1: SHA_LONG,
+            pub h2: SHA_LONG,
+            pub h3: SHA_LONG,
+            pub h4: SHA_LONG,
+            pub Nl: SHA_LONG,
+            pub Nh: SHA_LONG,
+            pub data: [SHA_LONG; SHA_LBLOCK as usize],
+            pub num: c_uint,
+        }
+
+        extern "C" {
+            pub fn SHA1_Init(c: *mut SHA_CTX) -> c_int;
+            pub fn SHA1_Update(c: *mut SHA_CTX, data: *const c_void, len: size_t) -> c_int;
+            pub fn SHA1_Final(md: *mut c_uchar, c: *mut SHA_CTX) -> c_int;
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(not(ossl300))] {
+        extern "C" {
+            pub fn SHA1(d: *const c_uchar, n: size_t, md: *mut c_uchar) -> *mut c_uchar;
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))] {
+        #[repr(C)]
+        #[derive(Clone)]
+        pub struct SHA256_CTX {
+            pub h: [SHA_LONG; 8],
+            pub Nl: SHA_LONG,
+            pub Nh: SHA_LONG,
+            pub data: [SHA_LONG; SHA_LBLOCK as usize],
+            pub num: c_uint,
+            pub md_len: c_uint,
+        }
+
+        extern "C" {
+            pub fn SHA224_Init(c: *mut SHA256_CTX) -> c_int;
+            pub fn SHA224_Update(c: *mut SHA256_CTX, data: *const c_void, len: size_t) -> c_int;
+            pub fn SHA224_Final(md: *mut c_uchar, c: *mut SHA256_CTX) -> c_int;
+            pub fn SHA256_Init(c: *mut SHA256_CTX) -> c_int;
+            pub fn SHA256_Update(c: *mut SHA256_CTX, data: *const c_void, len: size_t) -> c_int;
+            pub fn SHA256_Final(md: *mut c_uchar, c: *mut SHA256_CTX) -> c_int;
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(not(ossl300))] {
+        extern "C" {
+            pub fn SHA224(d: *const c_uchar, n: size_t, md: *mut c_uchar) -> *mut c_uchar;
+            pub fn SHA256(d: *const c_uchar, n: size_t, md: *mut c_uchar) -> *mut c_uchar;
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))] {
+        #[repr(C)]
+        #[derive(Clone)]
+        pub struct SHA512_CTX {
+            pub h: [SHA_LONG64; 8],
+            pub Nl: SHA_LONG64,
+            pub Nh: SHA_LONG64,
+            // this is a union but we don't want to require 1.19
+            u: [SHA_LONG64; SHA_LBLOCK as usize],
+            pub num: c_uint,
+            pub md_len: c_uint,
+        }
+
+        extern "C" {
+            pub fn SHA384_Init(c: *mut SHA512_CTX) -> c_int;
+            pub fn SHA384_Update(c: *mut SHA512_CTX, data: *const c_void, len: size_t) -> c_int;
+            pub fn SHA384_Final(md: *mut c_uchar, c: *mut SHA512_CTX) -> c_int;
+            pub fn SHA512_Init(c: *mut SHA512_CTX) -> c_int;
+            pub fn SHA512_Update(c: *mut SHA512_CTX, data: *const c_void, len: size_t) -> c_int;
+            pub fn SHA512_Final(md: *mut c_uchar, c: *mut SHA512_CTX) -> c_int;
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(not(ossl300))] {
+        extern "C" {
+            pub fn SHA384(d: *const c_uchar, n: size_t, md: *mut c_uchar) -> *mut c_uchar;
+            pub fn SHA512(d: *const c_uchar, n: size_t, md: *mut c_uchar) -> *mut c_uchar;
+        }
+    }
+}
diff --git a/vendor/openssl-sys/src/handwritten/srtp.rs b/vendor/openssl-sys/src/handwritten/srtp.rs
new file mode 100644
index 0000000..d4c7af8
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/srtp.rs
@@ -0,0 +1,10 @@
+use super::super::*;
+use libc::*;
+
+extern "C" {
+    pub fn SSL_CTX_set_tlsext_use_srtp(ctx: *mut SSL_CTX, profiles: *const c_char) -> c_int;
+    pub fn SSL_set_tlsext_use_srtp(ssl: *mut SSL, profiles: *const c_char) -> c_int;
+
+    pub fn SSL_get_srtp_profiles(ssl: *mut SSL) -> *mut stack_st_SRTP_PROTECTION_PROFILE;
+    pub fn SSL_get_selected_srtp_profile(ssl: *mut SSL) -> *mut SRTP_PROTECTION_PROFILE;
+}
diff --git a/vendor/openssl-sys/src/handwritten/ssl.rs b/vendor/openssl-sys/src/handwritten/ssl.rs
new file mode 100644
index 0000000..d4f4b61
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/ssl.rs
@@ -0,0 +1,926 @@
+use super::super::*;
+use libc::*;
+
+pub enum SSL_METHOD {}
+pub enum SSL_CIPHER {}
+cfg_if! {
+    if #[cfg(any(ossl110, libressl280))] {
+        pub enum SSL_SESSION {}
+    } else if #[cfg(libressl251)] {
+        #[repr(C)]
+        pub struct SSL_SESSION {
+            ssl_version: c_int,
+            pub master_key_length: c_int,
+            pub master_key: [c_uchar; 48],
+            session_id_length: c_uint,
+            session_id: [c_uchar; SSL_MAX_SSL_SESSION_ID_LENGTH as usize],
+            sid_ctx_length: c_uint,
+            sid_ctx: [c_uchar; SSL_MAX_SID_CTX_LENGTH as usize],
+            peer: *mut X509,
+            verify_result: c_long,
+            timeout: c_long,
+            time: time_t,
+            pub references: c_int,
+            cipher: *const SSL_CIPHER,
+            cipher_id: c_long,
+            ciphers: *mut stack_st_SSL_CIPHER,
+            tlsext_hostname: *mut c_char,
+            tlsext_tick: *mut c_uchar,
+            tlsext_ticklen: size_t,
+            tlsext_tick_lifetime_int: c_long,
+            internal: *mut c_void,
+        }
+    } else if #[cfg(libressl)] {
+        #[repr(C)]
+        pub struct SSL_SESSION {
+            ssl_version: c_int,
+            pub master_key_length: c_int,
+            pub master_key: [c_uchar; 48],
+            session_id_length: c_uint,
+            session_id: [c_uchar; SSL_MAX_SSL_SESSION_ID_LENGTH as usize],
+            sid_ctx_length: c_uint,
+            sid_ctx: [c_uchar; SSL_MAX_SID_CTX_LENGTH as usize],
+            not_resumable: c_int,
+            sess_cert: *mut c_void,
+            peer: *mut X509,
+            verify_result: c_long,
+            timeout: c_long,
+            time: time_t,
+            pub references: c_int,
+            cipher: *const c_void,
+            cipher_id: c_ulong,
+            ciphers: *mut c_void,
+            ex_data: CRYPTO_EX_DATA,
+            prev: *mut c_void,
+            next: *mut c_void,
+            tlsext_hostname: *mut c_char,
+            tlsext_ecpointformatlist_length: size_t,
+            tlsext_ecpointformatlist: *mut u8,
+            tlsext_ellipticcurvelist_length: size_t,
+            tlsext_ellipticcurvelist: *mut u16,
+            tlsext_tick: *mut c_uchar,
+            tlsext_ticklen: size_t,
+            tlsext_tick_lifetime_hint: c_long,
+        }
+    } else {
+        #[repr(C)]
+        pub struct SSL_SESSION {
+            ssl_version: c_int,
+            key_arg_length: c_uint,
+            key_arg: [c_uchar; SSL_MAX_KEY_ARG_LENGTH as usize],
+            pub master_key_length: c_int,
+            pub master_key: [c_uchar; 48],
+            session_id_length: c_uint,
+            session_id: [c_uchar; SSL_MAX_SSL_SESSION_ID_LENGTH as usize],
+            sid_ctx_length: c_uint,
+            sid_ctx: [c_uchar; SSL_MAX_SID_CTX_LENGTH as usize],
+            #[cfg(not(osslconf = "OPENSSL_NO_KRB5"))]
+            krb5_client_princ_len: c_uint,
+            #[cfg(not(osslconf = "OPENSSL_NO_KRB5"))]
+            krb5_client_princ: [c_uchar; SSL_MAX_KRB5_PRINCIPAL_LENGTH as usize],
+            #[cfg(not(osslconf = "OPENSSL_NO_PSK"))]
+            psk_identity_hint: *mut c_char,
+            #[cfg(not(osslconf = "OPENSSL_NO_PSK"))]
+            psk_identity: *mut c_char,
+            not_resumable: c_int,
+            sess_cert: *mut c_void,
+            peer: *mut X509,
+            verify_result: c_long,
+            pub references: c_int,
+            timeout: c_long,
+            time: c_long,
+            compress_meth: c_uint,
+            cipher: *const c_void,
+            cipher_id: c_ulong,
+            ciphers: *mut c_void,
+            ex_data: CRYPTO_EX_DATA,
+            prev: *mut c_void,
+            next: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_hostname: *mut c_char,
+            #[cfg(all(
+                not(osslconf = "OPENSSL_NO_TLSEXT"),
+                not(osslconf = "OPENSSL_NO_EC")
+            ))]
+            tlsext_ecpointformatlist_length: size_t,
+            #[cfg(all(
+                not(osslconf = "OPENSSL_NO_TLSEXT"),
+                not(osslconf = "OPENSSL_NO_EC")
+            ))]
+            tlsext_ecpointformatlist: *mut c_uchar,
+            #[cfg(all(
+                not(osslconf = "OPENSSL_NO_TLSEXT"),
+                not(osslconf = "OPENSSL_NO_EC")
+            ))]
+            tlsext_ellipticcurvelist_length: size_t,
+            #[cfg(all(
+                not(osslconf = "OPENSSL_NO_TLSEXT"),
+                not(osslconf = "OPENSSL_NO_EC")
+            ))]
+            tlsext_ellipticcurvelist: *mut c_uchar,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_tick: *mut c_uchar,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_ticklen: size_t,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_tick_lifetime_hint: c_long,
+            #[cfg(not(osslconf = "OPENSSL_NO_SRP"))]
+            srp_username: *mut c_char,
+        }
+    }
+}
+
+stack!(stack_st_SSL_CIPHER);
+
+#[repr(C)]
+pub struct SRTP_PROTECTION_PROFILE {
+    pub name: *const c_char,
+    pub id: c_ulong,
+}
+
+stack!(stack_st_SRTP_PROTECTION_PROFILE);
+
+pub type tls_session_ticket_ext_cb_fn =
+    Option<unsafe extern "C" fn(*mut SSL, *const c_uchar, c_int, *mut c_void) -> c_int>;
+pub type tls_session_secret_cb_fn = Option<
+    unsafe extern "C" fn(
+        *mut SSL,
+        *mut c_void,
+        *mut c_int,
+        *mut stack_st_SSL_CIPHER,
+        *mut *mut SSL_CIPHER,
+        *mut c_void,
+    ) -> c_int,
+>;
+
+#[cfg(ossl111)]
+pub type SSL_custom_ext_add_cb_ex = Option<
+    unsafe extern "C" fn(
+        ssl: *mut SSL,
+        ext_type: c_uint,
+        context: c_uint,
+        out: *mut *const c_uchar,
+        outlen: *mut size_t,
+        x: *mut X509,
+        chainidx: size_t,
+        al: *mut c_int,
+        add_arg: *mut c_void,
+    ) -> c_int,
+>;
+
+#[cfg(ossl111)]
+pub type SSL_custom_ext_free_cb_ex = Option<
+    unsafe extern "C" fn(
+        ssl: *mut SSL,
+        ext_type: c_uint,
+        context: c_uint,
+        out: *const c_uchar,
+        add_arg: *mut c_void,
+    ),
+>;
+
+#[cfg(ossl111)]
+pub type SSL_custom_ext_parse_cb_ex = Option<
+    unsafe extern "C" fn(
+        ssl: *mut SSL,
+        ext_type: c_uint,
+        context: c_uint,
+        input: *const c_uchar,
+        inlen: size_t,
+        x: *mut X509,
+        chainidx: size_t,
+        al: *mut c_int,
+        parse_arg: *mut c_void,
+    ) -> c_int,
+>;
+
+cfg_if! {
+    if #[cfg(ossl300)] {
+        extern "C" {
+            pub fn SSL_CTX_get_options(ctx: *const SSL_CTX) -> u64;
+            pub fn SSL_CTX_set_options(ctx: *mut SSL_CTX, op: u64) -> u64;
+            pub fn SSL_CTX_clear_options(ctx: *mut SSL_CTX, op: u64) -> u64;
+        }
+    } else if #[cfg(ossl110)] {
+        extern "C" {
+            pub fn SSL_CTX_get_options(ctx: *const SSL_CTX) -> c_ulong;
+            pub fn SSL_CTX_set_options(ctx: *mut SSL_CTX, op: c_ulong) -> c_ulong;
+            pub fn SSL_CTX_clear_options(ctx: *mut SSL_CTX, op: c_ulong) -> c_ulong;
+        }
+    }
+}
+
+pub type GEN_SESSION_CB =
+    Option<unsafe extern "C" fn(*const SSL, *mut c_uchar, *mut c_uint) -> c_int>;
+
+extern "C" {
+    pub fn SSL_CTX_sess_set_new_cb(
+        ctx: *mut SSL_CTX,
+        new_session_cb: Option<unsafe extern "C" fn(*mut SSL, *mut SSL_SESSION) -> c_int>,
+    );
+    pub fn SSL_CTX_sess_set_remove_cb(
+        ctx: *mut SSL_CTX,
+        remove_session_cb: Option<unsafe extern "C" fn(*mut SSL_CTX, *mut SSL_SESSION)>,
+    );
+}
+cfg_if! {
+    // const change in passed function pointer signature
+    if #[cfg(any(ossl110, libressl280))] {
+        extern "C" {
+            pub fn SSL_CTX_sess_set_get_cb(
+                ctx: *mut SSL_CTX,
+                get_session_cb: Option<
+                    unsafe extern "C" fn(*mut SSL, *const c_uchar, c_int, *mut c_int) -> *mut SSL_SESSION,
+                >,
+            );
+        }
+    } else {
+        extern "C" {
+            pub fn SSL_CTX_sess_set_get_cb(
+                ctx: *mut SSL_CTX,
+                get_session_cb: Option<
+                    unsafe extern "C" fn(*mut SSL, *mut c_uchar, c_int, *mut c_int) -> *mut SSL_SESSION,
+                >,
+            );
+        }
+    }
+}
+extern "C" {
+    // FIXME change to unsafe extern "C" fn
+    pub fn SSL_CTX_set_cookie_generate_cb(
+        s: *mut SSL_CTX,
+        cb: Option<
+            extern "C" fn(ssl: *mut SSL, cookie: *mut c_uchar, cookie_len: *mut c_uint) -> c_int,
+        >,
+    );
+}
+
+cfg_if! {
+    // const change in passed function pointer signature
+    if #[cfg(any(ossl110, libressl280))] {
+        extern "C" {
+            pub fn SSL_CTX_set_cookie_verify_cb(
+                s: *mut SSL_CTX,
+                cb: Option<
+                    extern "C" fn(ssl: *mut SSL, cookie: *const c_uchar, cookie_len: c_uint) -> c_int,
+                >,
+            );
+        }
+    } else {
+        extern "C" {
+            pub fn SSL_CTX_set_cookie_verify_cb(
+                s: *mut SSL_CTX,
+                cb: Option<extern "C" fn(ssl: *mut SSL, cookie: *mut c_uchar, cookie_len: c_uint) -> c_int>,
+            );
+        }
+    }
+}
+
+extern "C" {
+    #[cfg(ossl111)]
+    pub fn SSL_CTX_set_stateless_cookie_generate_cb(
+        s: *mut SSL_CTX,
+        cb: Option<
+            unsafe extern "C" fn(
+                ssl: *mut SSL,
+                cookie: *mut c_uchar,
+                cookie_len: *mut size_t,
+            ) -> c_int,
+        >,
+    );
+    #[cfg(ossl111)]
+    pub fn SSL_CTX_set_stateless_cookie_verify_cb(
+        s: *mut SSL_CTX,
+        cb: Option<
+            unsafe extern "C" fn(
+                ssl: *mut SSL,
+                cookie: *const c_uchar,
+                cookie_len: size_t,
+            ) -> c_int,
+        >,
+    );
+
+    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,
+    );
+    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,
+    );
+    pub fn SSL_get0_next_proto_negotiated(
+        s: *const SSL,
+        data: *mut *const c_uchar,
+        len: *mut c_uint,
+    );
+
+    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;
+}
+
+extern "C" {
+    #[cfg(any(ossl102, libressl261))]
+    pub fn SSL_CTX_set_alpn_protos(s: *mut SSL_CTX, data: *const c_uchar, len: c_uint) -> c_int;
+    #[cfg(any(ossl102, libressl261))]
+    pub fn SSL_set_alpn_protos(s: *mut SSL, data: *const c_uchar, len: c_uint) -> c_int;
+    #[cfg(any(ossl102, libressl261))]
+    #[link_name = "SSL_CTX_set_alpn_select_cb"]
+    pub fn SSL_CTX_set_alpn_select_cb__fixed_rust(
+        ssl: *mut SSL_CTX,
+        cb: Option<
+            unsafe extern "C" fn(
+                ssl: *mut SSL,
+                out: *mut *const c_uchar,
+                outlen: *mut c_uchar,
+                inbuf: *const c_uchar,
+                inlen: c_uint,
+                arg: *mut c_void,
+            ) -> c_int,
+        >,
+        arg: *mut c_void,
+    );
+    #[cfg(any(ossl102, libressl261))]
+    pub fn SSL_get0_alpn_selected(s: *const SSL, data: *mut *const c_uchar, len: *mut c_uint);
+}
+
+#[cfg(not(osslconf = "OPENSSL_NO_PSK"))]
+extern "C" {
+    pub fn SSL_CTX_set_psk_client_callback(
+        ssl: *mut SSL_CTX,
+        psk_client_cb: Option<
+            extern "C" fn(
+                *mut SSL,
+                *const c_char,
+                *mut c_char,
+                c_uint,
+                *mut c_uchar,
+                c_uint,
+            ) -> c_uint,
+        >,
+    );
+    pub fn SSL_CTX_set_psk_server_callback(
+        ssl: *mut SSL_CTX,
+        psk_server_cb: Option<
+            extern "C" fn(*mut SSL, *const c_char, *mut c_uchar, c_uint) -> c_uint,
+        >,
+    );
+    pub fn SSL_get_psk_identity_hint(ssl: *const SSL) -> *const c_char;
+    pub fn SSL_get_psk_identity(ssl: *const SSL) -> *const c_char;
+}
+
+extern "C" {
+    #[cfg(ossl111)]
+    pub fn SSL_CTX_add_custom_ext(
+        ctx: *mut SSL_CTX,
+        ext_type: c_uint,
+        context: c_uint,
+        add_cb: SSL_custom_ext_add_cb_ex,
+        free_cb: SSL_custom_ext_free_cb_ex,
+        add_arg: *mut c_void,
+        parse_cb: SSL_custom_ext_parse_cb_ex,
+        parse_arg: *mut c_void,
+    ) -> c_int;
+
+    #[cfg(ossl102)]
+    pub fn SSL_extension_supported(ext_type: c_uint) -> c_int;
+}
+
+#[cfg(ossl111)]
+pub type SSL_CTX_keylog_cb_func =
+    Option<unsafe extern "C" fn(ssl: *const SSL, line: *const c_char)>;
+
+extern "C" {
+    #[cfg(ossl111)]
+    pub fn SSL_CTX_set_keylog_callback(ctx: *mut SSL_CTX, cb: SSL_CTX_keylog_cb_func);
+
+    #[cfg(any(ossl111, libressl340))]
+    pub fn SSL_CTX_set_max_early_data(ctx: *mut SSL_CTX, max_early_data: u32) -> c_int;
+    #[cfg(any(ossl111, libressl340))]
+    pub fn SSL_CTX_get_max_early_data(ctx: *const SSL_CTX) -> u32;
+    #[cfg(any(ossl111, libressl340))]
+    pub fn SSL_set_max_early_data(ctx: *mut SSL, max_early_data: u32) -> c_int;
+    #[cfg(any(ossl111, libressl340))]
+    pub fn SSL_get_max_early_data(ctx: *const SSL) -> u32;
+
+    pub fn SSL_get_finished(s: *const SSL, buf: *mut c_void, count: size_t) -> size_t;
+    pub fn SSL_get_peer_finished(s: *const SSL, buf: *mut c_void, count: size_t) -> size_t;
+
+    pub fn SSL_CTX_get_verify_mode(ctx: *const SSL_CTX) -> c_int;
+    pub fn SSL_get_verify_mode(s: *const SSL) -> c_int;
+}
+
+const_ptr_api! {
+    extern "C" {
+        #[cfg(ossl110)]
+        pub fn SSL_is_init_finished(s: #[const_ptr_if(ossl111)] SSL) -> c_int;
+    }
+}
+
+cfg_if! {
+    if #[cfg(libressl261)] {
+        extern "C" {
+            pub fn SSL_CTX_set_min_proto_version(ctx: *mut SSL_CTX, version: u16) -> c_int;
+            pub fn SSL_CTX_set_max_proto_version(ctx: *mut SSL_CTX, version: u16) -> c_int;
+            pub fn SSL_set_min_proto_version(s: *mut SSL, version: u16) -> c_int;
+            pub fn SSL_set_max_proto_version(s: *mut SSL, version: u16) -> c_int;
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(libressl270)] {
+        extern "C" {
+            pub fn SSL_CTX_get_min_proto_version(ctx: *mut SSL_CTX) -> c_int;
+            pub fn SSL_CTX_get_max_proto_version(ctx: *mut SSL_CTX) -> c_int;
+            pub fn SSL_get_min_proto_version(s: *mut SSL) -> c_int;
+            pub fn SSL_get_max_proto_version(s: *mut SSL) -> c_int;
+        }
+    }
+}
+
+extern "C" {
+    pub fn SSL_CTX_set_cipher_list(ssl: *mut SSL_CTX, s: *const c_char) -> c_int;
+    pub fn SSL_CTX_new(method: *const SSL_METHOD) -> *mut SSL_CTX;
+    pub fn SSL_CTX_free(ctx: *mut SSL_CTX);
+    #[cfg(any(ossl110, libressl273))]
+    pub fn SSL_CTX_up_ref(x: *mut SSL_CTX) -> c_int;
+    pub fn SSL_CTX_get_cert_store(ctx: *const SSL_CTX) -> *mut X509_STORE;
+    pub fn SSL_CTX_set_cert_store(ctx: *mut SSL_CTX, store: *mut X509_STORE);
+
+    pub fn SSL_get_current_cipher(ssl: *const SSL) -> *const SSL_CIPHER;
+    pub fn SSL_CIPHER_get_bits(cipher: *const SSL_CIPHER, alg_bits: *mut c_int) -> c_int;
+}
+const_ptr_api! {
+    extern "C" {
+        pub fn SSL_CIPHER_get_version(cipher: *const SSL_CIPHER) -> #[const_ptr_if(any(ossl110, libressl280))] c_char;
+    }
+}
+extern "C" {
+    #[cfg(ossl111)]
+    pub fn SSL_CIPHER_get_handshake_digest(cipher: *const SSL_CIPHER) -> *const EVP_MD;
+    pub fn SSL_CIPHER_get_name(cipher: *const SSL_CIPHER) -> *const c_char;
+    #[cfg(ossl111)]
+    pub fn SSL_CIPHER_standard_name(cipher: *const SSL_CIPHER) -> *const c_char;
+    #[cfg(ossl111)]
+    pub fn OPENSSL_cipher_name(rfc_name: *const c_char) -> *const c_char;
+
+    pub fn SSL_pending(ssl: *const SSL) -> c_int;
+    pub fn SSL_set_bio(ssl: *mut SSL, rbio: *mut BIO, wbio: *mut BIO);
+    pub fn SSL_get_rbio(ssl: *const SSL) -> *mut BIO;
+    pub fn SSL_get_wbio(ssl: *const SSL) -> *mut BIO;
+    #[cfg(any(ossl111, libressl340))]
+    pub fn SSL_CTX_set_ciphersuites(ctx: *mut SSL_CTX, str: *const c_char) -> c_int;
+    #[cfg(any(ossl111, libressl340))]
+    pub fn SSL_set_ciphersuites(ssl: *mut SSL, str: *const c_char) -> c_int;
+    pub fn SSL_set_cipher_list(ssl: *mut SSL, s: *const c_char) -> c_int;
+    pub fn SSL_set_ssl_method(s: *mut SSL, method: *const SSL_METHOD) -> c_int;
+    pub fn SSL_set_verify(
+        ssl: *mut SSL,
+        mode: c_int,
+        // FIXME should be unsafe
+        verify_callback: Option<extern "C" fn(c_int, *mut X509_STORE_CTX) -> c_int>,
+    );
+    pub fn SSL_CTX_use_PrivateKey(ctx: *mut SSL_CTX, key: *mut EVP_PKEY) -> 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_certificate_file(
+        ctx: *mut SSL_CTX,
+        cert_file: *const c_char,
+        file_type: c_int,
+    ) -> c_int;
+    pub fn SSL_CTX_use_certificate_chain_file(
+        ctx: *mut SSL_CTX,
+        cert_chain_file: *const c_char,
+    ) -> c_int;
+    pub fn SSL_use_PrivateKey_file(ssl: *mut SSL, file: *const c_char, type_: c_int) -> c_int;
+    pub fn SSL_use_PrivateKey(ssl: *mut SSL, pkey: *mut EVP_PKEY) -> c_int;
+    pub fn SSL_use_certificate(ssl: *mut SSL, x: *mut X509) -> c_int;
+    #[cfg(any(ossl110, libressl332))]
+    pub fn SSL_use_certificate_chain_file(ssl: *mut SSL, file: *const c_char) -> c_int;
+    pub fn SSL_set_client_CA_list(s: *mut SSL, name_list: *mut stack_st_X509_NAME);
+    pub fn SSL_add_client_CA(ssl: *mut SSL, x: *mut X509) -> c_int;
+    pub fn SSL_load_client_CA_file(file: *const c_char) -> *mut stack_st_X509_NAME;
+
+    #[cfg(not(ossl110))]
+    pub fn SSL_load_error_strings();
+    pub fn SSL_state_string(ssl: *const SSL) -> *const c_char;
+    pub fn SSL_state_string_long(ssl: *const SSL) -> *const c_char;
+
+    pub fn SSL_SESSION_get_time(s: *const SSL_SESSION) -> c_long;
+    pub fn SSL_SESSION_get_timeout(s: *const SSL_SESSION) -> c_long;
+    #[cfg(any(ossl110, libressl270))]
+    pub fn SSL_SESSION_get_protocol_version(s: *const SSL_SESSION) -> c_int;
+
+    #[cfg(any(ossl111, libressl340))]
+    pub fn SSL_SESSION_set_max_early_data(ctx: *mut SSL_SESSION, max_early_data: u32) -> c_int;
+    #[cfg(any(ossl111, libressl340))]
+    pub fn SSL_SESSION_get_max_early_data(ctx: *const SSL_SESSION) -> u32;
+
+    pub fn SSL_SESSION_get_id(s: *const SSL_SESSION, len: *mut c_uint) -> *const c_uchar;
+    #[cfg(any(ossl110, libressl273))]
+    pub fn SSL_SESSION_up_ref(ses: *mut SSL_SESSION) -> c_int;
+    pub fn SSL_SESSION_free(s: *mut SSL_SESSION);
+}
+const_ptr_api! {
+    extern "C" {
+        pub fn i2d_SSL_SESSION(s: #[const_ptr_if(ossl300)] SSL_SESSION, pp: *mut *mut c_uchar) -> c_int;
+    }
+}
+extern "C" {
+    pub fn SSL_set_session(ssl: *mut SSL, session: *mut SSL_SESSION) -> c_int;
+    pub fn SSL_CTX_add_session(ctx: *mut SSL_CTX, session: *mut SSL_SESSION) -> c_int;
+    pub fn SSL_CTX_remove_session(ctx: *mut SSL_CTX, session: *mut SSL_SESSION) -> c_int;
+    pub fn d2i_SSL_SESSION(
+        a: *mut *mut SSL_SESSION,
+        pp: *mut *const c_uchar,
+        len: c_long,
+    ) -> *mut SSL_SESSION;
+
+    #[cfg(not(ossl300))]
+    pub fn SSL_get_peer_certificate(ssl: *const SSL) -> *mut X509;
+    #[cfg(ossl300)]
+    pub fn SSL_get1_peer_certificate(ssl: *const SSL) -> *mut X509;
+
+    pub fn SSL_get_peer_cert_chain(ssl: *const SSL) -> *mut stack_st_X509;
+
+    pub fn SSL_CTX_set_verify(
+        ctx: *mut SSL_CTX,
+        mode: c_int,
+        verify_callback: Option<extern "C" fn(c_int, *mut X509_STORE_CTX) -> c_int>,
+    );
+    pub fn SSL_CTX_set_verify_depth(ctx: *mut SSL_CTX, depth: c_int);
+
+    #[cfg(any(ossl111, libressl340))]
+    pub fn SSL_CTX_set_post_handshake_auth(ctx: *mut SSL_CTX, val: c_int);
+
+    pub fn SSL_CTX_check_private_key(ctx: *const SSL_CTX) -> c_int;
+
+    pub fn SSL_CTX_set_session_id_context(
+        ssl: *mut SSL_CTX,
+        sid_ctx: *const c_uchar,
+        sid_ctx_len: c_uint,
+    ) -> c_int;
+
+    pub fn SSL_new(ctx: *mut SSL_CTX) -> *mut SSL;
+
+    #[cfg(any(ossl102, libressl261))]
+    pub fn SSL_CTX_get0_param(ctx: *mut SSL_CTX) -> *mut X509_VERIFY_PARAM;
+
+    #[cfg(any(ossl102, libressl261))]
+    pub fn SSL_get0_param(ssl: *mut SSL) -> *mut X509_VERIFY_PARAM;
+}
+
+#[cfg(ossl111)]
+pub type SSL_client_hello_cb_fn =
+    Option<unsafe extern "C" fn(s: *mut SSL, al: *mut c_int, arg: *mut c_void) -> c_int>;
+extern "C" {
+    #[cfg(ossl111)]
+    pub fn SSL_CTX_set_client_hello_cb(
+        c: *mut SSL_CTX,
+        cb: SSL_client_hello_cb_fn,
+        arg: *mut c_void,
+    );
+    #[cfg(ossl111)]
+    pub fn SSL_client_hello_isv2(s: *mut SSL) -> c_int;
+    #[cfg(ossl111)]
+    pub fn SSL_client_hello_get0_legacy_version(s: *mut SSL) -> c_uint;
+    #[cfg(ossl111)]
+    pub fn SSL_client_hello_get0_random(s: *mut SSL, out: *mut *const c_uchar) -> size_t;
+    #[cfg(ossl111)]
+    pub fn SSL_client_hello_get0_session_id(s: *mut SSL, out: *mut *const c_uchar) -> size_t;
+    #[cfg(ossl111)]
+    pub fn SSL_client_hello_get0_ciphers(s: *mut SSL, out: *mut *const c_uchar) -> size_t;
+    #[cfg(ossl111)]
+    pub fn SSL_client_hello_get0_compression_methods(
+        s: *mut SSL,
+        out: *mut *const c_uchar,
+    ) -> size_t;
+    #[cfg(ossl111)]
+    pub fn SSL_client_hello_get1_extensions_present(
+        s: *mut SSL,
+        out: *mut *mut c_int,
+        outlen: *mut size_t,
+    ) -> c_int;
+    #[cfg(ossl111)]
+    pub fn SSL_client_hello_get0_ext(
+        s: *mut SSL,
+        type_: c_uint,
+        out: *mut *const c_uchar,
+        outlen: *mut size_t,
+    ) -> c_int;
+
+    pub fn SSL_free(ssl: *mut SSL);
+    pub fn SSL_accept(ssl: *mut SSL) -> c_int;
+    #[cfg(ossl111)]
+    pub fn SSL_stateless(s: *mut SSL) -> c_int;
+    pub fn SSL_connect(ssl: *mut SSL) -> c_int;
+    pub fn SSL_read(ssl: *mut SSL, buf: *mut c_void, num: c_int) -> c_int;
+    pub fn SSL_peek(ssl: *mut SSL, buf: *mut c_void, num: c_int) -> c_int;
+    #[cfg(any(ossl111, libressl340))]
+    pub fn SSL_read_early_data(
+        s: *mut SSL,
+        buf: *mut c_void,
+        num: size_t,
+        readbytes: *mut size_t,
+    ) -> c_int;
+    #[cfg(ossl111)]
+    pub fn SSL_bytes_to_cipher_list(
+        s: *mut SSL,
+        bytes: *const c_uchar,
+        len: size_t,
+        isv2format: c_int,
+        sk: *mut *mut stack_st_SSL_CIPHER,
+        scsvs: *mut *mut stack_st_SSL_CIPHER,
+    ) -> c_int;
+}
+
+extern "C" {
+    pub fn SSL_write(ssl: *mut SSL, buf: *const c_void, num: c_int) -> c_int;
+    #[cfg(any(ossl111, libressl340))]
+    pub fn SSL_write_early_data(
+        s: *mut SSL,
+        buf: *const c_void,
+        num: size_t,
+        written: *mut size_t,
+    ) -> c_int;
+    pub fn SSL_ctrl(ssl: *mut SSL, cmd: c_int, larg: c_long, parg: *mut c_void) -> c_long;
+    pub fn SSL_CTX_ctrl(ctx: *mut SSL_CTX, cmd: c_int, larg: c_long, parg: *mut c_void) -> c_long;
+    #[link_name = "SSL_CTX_callback_ctrl"]
+    pub fn SSL_CTX_callback_ctrl__fixed_rust(
+        ctx: *mut SSL_CTX,
+        cmd: c_int,
+        fp: Option<unsafe extern "C" fn()>,
+    ) -> c_long;
+}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl291))] {
+        extern "C" {
+            pub fn TLS_method() -> *const SSL_METHOD;
+
+            pub fn DTLS_method() -> *const SSL_METHOD;
+
+            pub fn TLS_server_method() -> *const SSL_METHOD;
+
+            pub fn TLS_client_method() -> *const SSL_METHOD;
+        }
+    } else {
+        extern "C" {
+            #[cfg(not(osslconf = "OPENSSL_NO_SSL3_METHOD"))]
+            pub fn SSLv3_method() -> *const SSL_METHOD;
+
+            pub fn SSLv23_method() -> *const SSL_METHOD;
+
+            pub fn SSLv23_client_method() -> *const SSL_METHOD;
+
+            pub fn SSLv23_server_method() -> *const SSL_METHOD;
+
+            pub fn TLSv1_method() -> *const SSL_METHOD;
+
+            pub fn TLSv1_1_method() -> *const SSL_METHOD;
+
+            pub fn TLSv1_2_method() -> *const SSL_METHOD;
+
+            pub fn DTLSv1_method() -> *const SSL_METHOD;
+
+            #[cfg(ossl102)]
+            pub fn DTLSv1_2_method() -> *const SSL_METHOD;
+        }
+    }
+}
+
+extern "C" {
+    pub fn SSL_get_error(ssl: *const SSL, ret: c_int) -> c_int;
+    pub fn SSL_get_version(ssl: *const SSL) -> *const c_char;
+
+    pub fn SSL_do_handshake(ssl: *mut SSL) -> c_int;
+    pub fn SSL_shutdown(ssl: *mut SSL) -> c_int;
+
+    pub fn SSL_CTX_set_client_CA_list(ctx: *mut SSL_CTX, list: *mut stack_st_X509_NAME);
+
+    pub fn SSL_CTX_add_client_CA(ctx: *mut SSL_CTX, cacert: *mut X509) -> c_int;
+
+    pub fn SSL_CTX_set_default_verify_paths(ctx: *mut SSL_CTX) -> c_int;
+    pub fn SSL_CTX_load_verify_locations(
+        ctx: *mut SSL_CTX,
+        CAfile: *const c_char,
+        CApath: *const c_char,
+    ) -> c_int;
+}
+
+const_ptr_api! {
+    extern "C" {
+        pub fn SSL_get_ssl_method(ssl: #[const_ptr_if(ossl111b)] SSL) -> *const SSL_METHOD;
+    }
+}
+
+extern "C" {
+    pub fn SSL_set_connect_state(s: *mut SSL);
+    pub fn SSL_set_accept_state(s: *mut SSL);
+
+    #[cfg(not(ossl110))]
+    pub fn SSL_library_init() -> c_int;
+
+    pub fn SSL_CIPHER_description(
+        cipher: *const SSL_CIPHER,
+        buf: *mut c_char,
+        size: c_int,
+    ) -> *mut c_char;
+
+    pub fn SSL_get_certificate(ssl: *const SSL) -> *mut X509;
+}
+const_ptr_api! {
+    extern "C" {
+        pub fn SSL_get_privatekey(ssl: #[const_ptr_if(any(ossl102, libressl280))] SSL) -> *mut EVP_PKEY;
+    }
+}
+
+extern "C" {
+    #[cfg(any(ossl102, libressl270))]
+    pub fn SSL_CTX_get0_certificate(ctx: *const SSL_CTX) -> *mut X509;
+    #[cfg(any(ossl102, libressl340))]
+    pub fn SSL_CTX_get0_privatekey(ctx: *const SSL_CTX) -> *mut EVP_PKEY;
+
+    pub fn SSL_set_shutdown(ss: *mut SSL, mode: c_int);
+    pub fn SSL_get_shutdown(ssl: *const SSL) -> c_int;
+    pub fn SSL_version(ssl: *const SSL) -> c_int;
+    pub fn SSL_get_session(s: *const SSL) -> *mut SSL_SESSION;
+    pub fn SSL_get_SSL_CTX(ssl: *const SSL) -> *mut SSL_CTX;
+    pub fn SSL_set_SSL_CTX(ssl: *mut SSL, ctx: *mut SSL_CTX) -> *mut SSL_CTX;
+
+    pub fn SSL_get_verify_result(ssl: *const SSL) -> c_long;
+    #[cfg(ossl110)]
+    pub fn SSL_get0_verified_chain(ssl: *const SSL) -> *mut stack_st_X509;
+
+    #[cfg(any(ossl110, libressl270))]
+    pub fn SSL_get_client_random(ssl: *const SSL, out: *mut c_uchar, len: size_t) -> size_t;
+    #[cfg(any(ossl110, libressl270))]
+    pub fn SSL_get_server_random(ssl: *const SSL, out: *mut c_uchar, len: size_t) -> size_t;
+    #[cfg(any(ossl110, libressl273))]
+    pub fn SSL_SESSION_get_master_key(
+        session: *const SSL_SESSION,
+        out: *mut c_uchar,
+        outlen: size_t,
+    ) -> size_t;
+}
+
+extern "C" {
+    #[cfg(not(ossl110))]
+    pub fn SSL_get_ex_new_index(
+        argl: c_long,
+        argp: *mut 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_set_ex_data(ssl: *mut SSL, idx: c_int, data: *mut c_void) -> c_int;
+    pub fn SSL_get_ex_data(ssl: *const SSL, idx: c_int) -> *mut c_void;
+
+    #[cfg(not(ossl110))]
+    pub fn SSL_CTX_get_ex_new_index(
+        argl: c_long,
+        argp: *mut 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: *const SSL_CTX, idx: c_int) -> *mut c_void;
+
+    pub fn SSL_get_ex_data_X509_STORE_CTX_idx() -> c_int;
+}
+
+extern "C" {
+    #[link_name = "SSL_CTX_set_tmp_dh_callback"]
+    pub fn SSL_CTX_set_tmp_dh_callback__fixed_rust(
+        ctx: *mut SSL_CTX,
+        dh: Option<
+            unsafe extern "C" fn(ssl: *mut SSL, is_export: c_int, keylength: c_int) -> *mut DH,
+        >,
+    );
+    #[link_name = "SSL_set_tmp_dh_callback"]
+    pub fn SSL_set_tmp_dh_callback__fixed_rust(
+        ctx: *mut SSL,
+        dh: Option<
+            unsafe extern "C" fn(ssl: *mut SSL, is_export: c_int, keylength: c_int) -> *mut DH,
+        >,
+    );
+    #[cfg(not(ossl110))]
+    #[link_name = "SSL_CTX_set_tmp_ecdh_callback"]
+    pub fn SSL_CTX_set_tmp_ecdh_callback__fixed_rust(
+        ctx: *mut SSL_CTX,
+        ecdh: Option<
+            unsafe extern "C" fn(ssl: *mut SSL, is_export: c_int, keylength: c_int) -> *mut EC_KEY,
+        >,
+    );
+    #[cfg(not(ossl110))]
+    #[link_name = "SSL_set_tmp_ecdh_callback"]
+    pub fn SSL_set_tmp_ecdh_callback__fixed_rust(
+        ssl: *mut SSL,
+        ecdh: Option<
+            unsafe extern "C" fn(ssl: *mut SSL, is_export: c_int, keylength: c_int) -> *mut EC_KEY,
+        >,
+    );
+}
+
+cfg_if! {
+    if #[cfg(libressl)] {
+        extern "C" {
+            pub fn SSL_get_current_compression(ssl: *mut SSL) -> *const libc::c_void;
+        }
+    } else if #[cfg(not(osslconf = "OPENSSL_NO_COMP"))] {
+        const_ptr_api! {
+            extern "C" {
+                pub fn SSL_get_current_compression(ssl: #[const_ptr_if(ossl111b)] SSL) -> *const COMP_METHOD;
+            }
+        }
+    }
+}
+cfg_if! {
+    if #[cfg(libressl)] {
+        extern "C" {
+            pub fn SSL_COMP_get_name(comp: *const libc::c_void) -> *const c_char;
+        }
+    } else if #[cfg(not(osslconf = "OPENSSL_NO_COMP"))] {
+        extern "C" {
+            pub fn SSL_COMP_get_name(comp: *const COMP_METHOD) -> *const c_char;
+        }
+    }
+}
+
+#[cfg(not(osslconf = "OPENSSL_NO_COMP"))]
+extern "C" {
+    #[cfg(ossl110)]
+    pub fn COMP_get_type(meth: *const COMP_METHOD) -> i32;
+}
+
+extern "C" {
+    #[cfg(any(ossl110, libressl270))]
+    pub fn SSL_CIPHER_get_cipher_nid(c: *const SSL_CIPHER) -> c_int;
+    #[cfg(any(ossl110, libressl270))]
+    pub fn SSL_CIPHER_get_digest_nid(c: *const SSL_CIPHER) -> c_int;
+}
+
+const_ptr_api! {
+    extern "C" {
+        #[cfg(ossl110)]
+        pub fn SSL_session_reused(ssl: #[const_ptr_if(ossl111c)] SSL) -> c_int;
+    }
+}
+
+const_ptr_api! {
+    extern "C" {
+        #[cfg(any(ossl102, libressl273))]
+        pub fn SSL_is_server(s: #[const_ptr_if(any(ossl110f, libressl273))] SSL) -> c_int;
+    }
+}
+
+extern "C" {
+    #[cfg(ossl110)]
+    pub fn OPENSSL_init_ssl(opts: u64, settings: *const OPENSSL_INIT_SETTINGS) -> c_int;
+}
+
+extern "C" {
+    #[cfg(ossl111)]
+    pub fn SSL_CTX_set_num_tickets(ctx: *mut SSL_CTX, num_tickets: size_t) -> c_int;
+
+    #[cfg(ossl111)]
+    pub fn SSL_set_num_tickets(s: *mut SSL, num_tickets: size_t) -> c_int;
+
+    #[cfg(ossl111b)]
+    pub fn SSL_CTX_get_num_tickets(ctx: *const SSL_CTX) -> size_t;
+    #[cfg(all(ossl111, not(ossl111b)))]
+    pub fn SSL_CTX_get_num_tickets(ctx: *mut SSL_CTX) -> size_t;
+
+    #[cfg(ossl111b)]
+    pub fn SSL_get_num_tickets(s: *const SSL) -> size_t;
+    #[cfg(all(ossl111, not(ossl111b)))]
+    pub fn SSL_get_num_tickets(s: *mut SSL) -> size_t;
+}
diff --git a/vendor/openssl-sys/src/handwritten/stack.rs b/vendor/openssl-sys/src/handwritten/stack.rs
new file mode 100644
index 0000000..7f2feef
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/stack.rs
@@ -0,0 +1,45 @@
+use libc::*;
+
+cfg_if! {
+    if #[cfg(ossl110)] {
+        pub enum OPENSSL_STACK {}
+    } else {
+        #[repr(C)]
+        pub struct _STACK {
+            pub num: c_int,
+            pub data: *mut *mut c_char,
+            pub sorted: c_int,
+            pub num_alloc: c_int,
+            pub comp: Option<unsafe extern "C" fn(*const c_void, *const c_void) -> c_int>,
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(ossl110)] {
+        extern "C" {
+            pub fn OPENSSL_sk_num(stack: *const OPENSSL_STACK) -> c_int;
+            pub fn OPENSSL_sk_value(stack: *const OPENSSL_STACK, idx: c_int) -> *mut c_void;
+
+            pub fn OPENSSL_sk_new_null() -> *mut OPENSSL_STACK;
+            pub fn OPENSSL_sk_free(st: *mut OPENSSL_STACK);
+            pub fn OPENSSL_sk_pop_free(
+                st: *mut OPENSSL_STACK,
+                free: Option<unsafe extern "C" fn(*mut c_void)>,
+            );
+            pub fn OPENSSL_sk_push(st: *mut OPENSSL_STACK, data: *const c_void) -> c_int;
+            pub fn OPENSSL_sk_pop(st: *mut OPENSSL_STACK) -> *mut c_void;
+        }
+    } else {
+        extern "C" {
+            pub fn sk_num(st: *const _STACK) -> c_int;
+            pub fn sk_value(st: *const _STACK, n: c_int) -> *mut c_void;
+
+            pub fn sk_new_null() -> *mut _STACK;
+            pub fn sk_free(st: *mut _STACK);
+            pub fn sk_pop_free(st: *mut _STACK, free: Option<unsafe extern "C" fn(*mut c_void)>);
+            pub fn sk_push(st: *mut _STACK, data: *mut c_void) -> c_int;
+            pub fn sk_pop(st: *mut _STACK) -> *mut c_void;
+        }
+    }
+}
diff --git a/vendor/openssl-sys/src/handwritten/tls1.rs b/vendor/openssl-sys/src/handwritten/tls1.rs
new file mode 100644
index 0000000..8cf992f
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/tls1.rs
@@ -0,0 +1,28 @@
+use super::super::*;
+use libc::*;
+
+extern "C" {
+    pub fn SSL_get_servername(ssl: *const SSL, name_type: c_int) -> *const c_char;
+
+    pub fn SSL_export_keying_material(
+        s: *mut SSL,
+        out: *mut c_uchar,
+        olen: size_t,
+        label: *const c_char,
+        llen: size_t,
+        context: *const c_uchar,
+        contextlen: size_t,
+        use_context: c_int,
+    ) -> c_int;
+
+    #[cfg(ossl111)]
+    pub fn SSL_export_keying_material_early(
+        s: *mut SSL,
+        out: *mut c_uchar,
+        olen: size_t,
+        label: *const c_char,
+        llen: size_t,
+        context: *const c_uchar,
+        contextlen: size_t,
+    ) -> c_int;
+}
diff --git a/vendor/openssl-sys/src/handwritten/types.rs b/vendor/openssl-sys/src/handwritten/types.rs
new file mode 100644
index 0000000..0635472
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/types.rs
@@ -0,0 +1,1095 @@
+use libc::*;
+
+#[allow(unused_imports)]
+use super::super::*;
+
+pub enum ASN1_OBJECT {}
+pub enum ASN1_VALUE {}
+
+pub type ASN1_BOOLEAN = c_int;
+pub enum ASN1_INTEGER {}
+pub enum ASN1_ENUMERATED {}
+pub enum ASN1_GENERALIZEDTIME {}
+pub enum ASN1_STRING {}
+pub enum ASN1_BIT_STRING {}
+pub enum ASN1_TIME {}
+pub enum ASN1_OCTET_STRING {}
+pub enum ASN1_NULL {}
+pub enum ASN1_PRINTABLESTRING {}
+pub enum ASN1_T61STRING {}
+pub enum ASN1_IA5STRING {}
+pub enum ASN1_GENERALSTRING {}
+pub enum ASN1_BMPSTRING {}
+pub enum ASN1_UNIVERSALSTRING {}
+pub enum ASN1_UTCTIME {}
+pub enum ASN1_VISIBLESTRING {}
+pub enum ASN1_UTF8STRING {}
+
+pub enum bio_st {} // FIXME remove
+cfg_if! {
+    if #[cfg(any(ossl110, libressl280))] {
+        pub enum BIO {}
+    } else {
+        #[repr(C)]
+        pub struct BIO {
+            pub method: *mut BIO_METHOD,
+            pub callback: Option<
+                unsafe extern "C" fn(*mut BIO, c_int, *const c_char, c_int, c_long, c_long) -> c_long,
+            >,
+            pub cb_arg: *mut c_char,
+            pub init: c_int,
+            pub shutdown: c_int,
+            pub flags: c_int,
+            pub retry_reason: c_int,
+            pub num: c_int,
+            pub ptr: *mut c_void,
+            pub next_bio: *mut BIO,
+            pub prev_bio: *mut BIO,
+            pub references: c_int,
+            pub num_read: c_ulong,
+            pub num_write: c_ulong,
+            pub ex_data: CRYPTO_EX_DATA,
+        }
+    }
+}
+cfg_if! {
+    if #[cfg(any(ossl110, libressl350))] {
+        pub enum BIGNUM {}
+    } else {
+        #[repr(C)]
+        pub struct BIGNUM {
+            pub d: *mut BN_ULONG,
+            pub top: c_int,
+            pub dmax: c_int,
+            pub neg: c_int,
+            pub flags: c_int,
+        }
+    }
+}
+pub enum BN_BLINDING {}
+pub enum BN_MONT_CTX {}
+
+pub enum BN_CTX {}
+pub enum BN_GENCB {}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl280))] {
+        pub enum EVP_CIPHER {}
+    } else {
+        #[repr(C)]
+        pub struct EVP_CIPHER {
+            pub nid: c_int,
+            pub block_size: c_int,
+            pub key_len: c_int,
+            pub iv_len: c_int,
+            pub flags: c_ulong,
+            pub init: Option<
+                unsafe extern "C" fn(*mut EVP_CIPHER_CTX, *const c_uchar, *const c_uchar, c_int) -> c_int,
+            >,
+            pub do_cipher: Option<
+                unsafe extern "C" fn(*mut EVP_CIPHER_CTX, *mut c_uchar, *const c_uchar, size_t) -> c_int,
+            >,
+            pub cleanup: Option<unsafe extern "C" fn(*mut EVP_CIPHER_CTX) -> c_int>,
+            pub ctx_size: c_int,
+            pub set_asn1_parameters:
+                Option<unsafe extern "C" fn(*mut EVP_CIPHER_CTX, *mut ASN1_TYPE) -> c_int>,
+            pub get_asn1_parameters:
+                Option<unsafe extern "C" fn(*mut EVP_CIPHER_CTX, *mut ASN1_TYPE) -> c_int>,
+            pub ctrl:
+                Option<unsafe extern "C" fn(*mut EVP_CIPHER_CTX, c_int, c_int, *mut c_void) -> c_int>,
+            pub app_data: *mut c_void,
+        }
+    }
+}
+pub enum EVP_CIPHER_CTX {}
+pub enum EVP_MD {}
+cfg_if! {
+    if #[cfg(any(ossl110, libressl280))] {
+        pub enum EVP_MD_CTX {}
+    } else {
+        #[repr(C)]
+        pub struct EVP_MD_CTX {
+            digest: *mut EVP_MD,
+            engine: *mut ENGINE,
+            flags: c_ulong,
+            md_data: *mut c_void,
+            pctx: *mut EVP_PKEY_CTX,
+            update: *mut c_void,
+        }
+    }
+}
+
+pub enum PKCS8_PRIV_KEY_INFO {}
+
+pub enum EVP_PKEY_ASN1_METHOD {}
+
+pub enum EVP_PKEY_CTX {}
+
+pub enum CMAC_CTX {}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl280))] {
+        pub enum HMAC_CTX {}
+    } else {
+        #[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],
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl280))] {
+        pub enum DH {}
+    } else {
+        #[repr(C)]
+        pub struct DH {
+            pub pad: c_int,
+            pub version: c_int,
+            pub p: *mut BIGNUM,
+            pub g: *mut BIGNUM,
+            pub length: c_long,
+            pub pub_key: *mut BIGNUM,
+            pub priv_key: *mut BIGNUM,
+            pub flags: c_int,
+            pub method_mont_p: *mut BN_MONT_CTX,
+            pub q: *mut BIGNUM,
+            pub j: *mut BIGNUM,
+            pub seed: *mut c_uchar,
+            pub seedlen: c_int,
+            pub counter: *mut BIGNUM,
+            pub references: c_int,
+            pub ex_data: CRYPTO_EX_DATA,
+            pub meth: *const DH_METHOD,
+            pub engine: *mut ENGINE,
+        }
+    }
+}
+pub enum DH_METHOD {}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl280))] {
+        pub enum DSA {}
+    } else {
+        #[repr(C)]
+        pub struct DSA {
+            pub pad: c_int,
+            pub version: c_long,
+            pub write_params: c_int,
+
+            pub p: *mut BIGNUM,
+            pub q: *mut BIGNUM,
+            pub g: *mut BIGNUM,
+            pub pub_key: *mut BIGNUM,
+            pub priv_key: *mut BIGNUM,
+            pub kinv: *mut BIGNUM,
+            pub r: *mut BIGNUM,
+
+            pub flags: c_int,
+            pub method_mont_p: *mut BN_MONT_CTX,
+            pub references: c_int,
+            pub ex_data: CRYPTO_EX_DATA,
+            pub meth: *const DSA_METHOD,
+            pub engine: *mut ENGINE,
+        }
+    }
+}
+pub enum DSA_METHOD {}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl280))] {
+        pub enum RSA {}
+    } else if #[cfg(libressl)] {
+        #[repr(C)]
+        pub struct RSA {
+            pub pad: c_int,
+            pub version: c_long,
+            pub meth: *const RSA_METHOD,
+
+            pub engine: *mut ENGINE,
+            pub n: *mut BIGNUM,
+            pub e: *mut BIGNUM,
+            pub d: *mut BIGNUM,
+            pub p: *mut BIGNUM,
+            pub q: *mut BIGNUM,
+            pub dmp1: *mut BIGNUM,
+            pub dmq1: *mut BIGNUM,
+            pub iqmp: *mut BIGNUM,
+
+            pub ex_data: CRYPTO_EX_DATA,
+            pub references: c_int,
+            pub flags: c_int,
+
+            pub _method_mod_n: *mut BN_MONT_CTX,
+            pub _method_mod_p: *mut BN_MONT_CTX,
+            pub _method_mod_q: *mut BN_MONT_CTX,
+
+            pub blinding: *mut BN_BLINDING,
+            pub mt_blinding: *mut BN_BLINDING,
+        }
+    } else {
+        #[repr(C)]
+        pub struct RSA {
+            pub pad: c_int,
+            pub version: c_long,
+            pub meth: *const RSA_METHOD,
+
+            pub engine: *mut ENGINE,
+            pub n: *mut BIGNUM,
+            pub e: *mut BIGNUM,
+            pub d: *mut BIGNUM,
+            pub p: *mut BIGNUM,
+            pub q: *mut BIGNUM,
+            pub dmp1: *mut BIGNUM,
+            pub dmq1: *mut BIGNUM,
+            pub iqmp: *mut BIGNUM,
+
+            pub ex_data: CRYPTO_EX_DATA,
+            pub references: c_int,
+            pub flags: c_int,
+
+            pub _method_mod_n: *mut BN_MONT_CTX,
+            pub _method_mod_p: *mut BN_MONT_CTX,
+            pub _method_mod_q: *mut BN_MONT_CTX,
+
+            pub bignum_data: *mut c_char,
+            pub blinding: *mut BN_BLINDING,
+            pub mt_blinding: *mut BN_BLINDING,
+        }
+    }
+}
+pub enum RSA_METHOD {}
+
+pub enum EC_KEY {}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl280))] {
+        pub enum X509 {}
+    } else if #[cfg(libressl)] {
+        #[repr(C)]
+        pub struct X509 {
+            pub cert_info: *mut X509_CINF,
+            pub sig_alg: *mut X509_ALGOR,
+            pub signature: *mut ASN1_BIT_STRING,
+            pub valid: c_int,
+            pub references: c_int,
+            pub name: *mut c_char,
+            pub ex_data: CRYPTO_EX_DATA,
+            pub ex_pathlen: c_long,
+            pub ex_pcpathlen: c_long,
+            pub ex_flags: c_ulong,
+            pub ex_kusage: c_ulong,
+            pub ex_xkusage: c_ulong,
+            pub ex_nscert: c_ulong,
+            skid: *mut c_void,
+            akid: *mut c_void,
+            policy_cache: *mut c_void,
+            crldp: *mut c_void,
+            altname: *mut c_void,
+            nc: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_SHA"))]
+            sha1_hash: [c_uchar; 20],
+            aux: *mut c_void,
+        }
+    } else {
+        #[repr(C)]
+        pub struct X509 {
+            pub cert_info: *mut X509_CINF,
+            pub sig_alg: *mut X509_ALGOR,
+            pub signature: *mut ASN1_BIT_STRING,
+            pub valid: c_int,
+            pub references: c_int,
+            pub name: *mut c_char,
+            pub ex_data: CRYPTO_EX_DATA,
+            pub ex_pathlen: c_long,
+            pub ex_pcpathlen: c_long,
+            pub ex_flags: c_ulong,
+            pub ex_kusage: c_ulong,
+            pub ex_xkusage: c_ulong,
+            pub ex_nscert: c_ulong,
+            skid: *mut c_void,
+            akid: *mut c_void,
+            policy_cache: *mut c_void,
+            crldp: *mut c_void,
+            altname: *mut c_void,
+            nc: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_RFC3779"))]
+            rfc3779_addr: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_RFC3779"))]
+            rfc3779_asid: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_SHA"))]
+            sha1_hash: [c_uchar; 20],
+            aux: *mut c_void,
+        }
+    }
+}
+cfg_if! {
+    if #[cfg(ossl110)] {
+        pub enum X509_ALGOR {}
+    } else {
+        #[repr(C)]
+        pub struct X509_ALGOR {
+            pub algorithm: *mut ASN1_OBJECT,
+            parameter: *mut c_void,
+        }
+    }
+}
+
+stack!(stack_st_X509_ALGOR);
+
+pub enum X509_LOOKUP_METHOD {}
+
+pub enum X509_NAME {}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl270))] {
+        pub enum X509_STORE {}
+    } else {
+        #[repr(C)]
+        pub struct X509_STORE {
+            cache: c_int,
+            pub objs: *mut stack_st_X509_OBJECT,
+            get_cert_methods: *mut stack_st_X509_LOOKUP,
+            param: *mut X509_VERIFY_PARAM,
+            verify: Option<extern "C" fn(ctx: *mut X509_STORE_CTX) -> c_int>,
+            verify_cb: Option<extern "C" fn(ok: c_int, ctx: *mut X509_STORE_CTX) -> c_int>,
+            get_issuer: Option<
+                extern "C" fn(issuer: *mut *mut X509, ctx: *mut X509_STORE_CTX, x: *mut X509) -> c_int,
+            >,
+            check_issued:
+                Option<extern "C" fn(ctx: *mut X509_STORE_CTX, x: *mut X509, issuer: *mut X509) -> c_int>,
+            check_revocation: Option<extern "C" fn(ctx: *mut X509_STORE_CTX) -> c_int>,
+            get_crl: Option<
+                extern "C" fn(ctx: *mut X509_STORE_CTX, crl: *mut *mut X509_CRL, x: *mut X509) -> c_int,
+            >,
+            check_crl: Option<extern "C" fn(ctx: *mut X509_STORE_CTX, crl: *mut X509_CRL) -> c_int>,
+            cert_crl:
+                Option<extern "C" fn(ctx: *mut X509_STORE_CTX, crl: *mut X509_CRL, x: *mut X509) -> c_int>,
+            lookup_certs:
+                Option<extern "C" fn(ctx: *mut X509_STORE_CTX, nm: *const X509_NAME) -> *mut stack_st_X509>,
+            lookup_crls: Option<
+                extern "C" fn(ctx: *const X509_STORE_CTX, nm: *const X509_NAME) -> *mut stack_st_X509_CRL,
+            >,
+            cleanup: Option<extern "C" fn(ctx: *mut X509_STORE_CTX) -> c_int>,
+            ex_data: CRYPTO_EX_DATA,
+            references: c_int,
+        }
+    }
+}
+
+pub enum X509_STORE_CTX {}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl280))] {
+        pub enum X509_VERIFY_PARAM {}
+    } else if #[cfg(libressl251)] {
+        #[repr(C)]
+        pub struct X509_VERIFY_PARAM {
+            pub name: *mut c_char,
+            pub check_time: time_t,
+            pub inh_flags: c_ulong,
+            pub flags: c_ulong,
+            pub purpose: c_int,
+            pub trust: c_int,
+            pub depth: c_int,
+            pub policies: *mut stack_st_ASN1_OBJECT,
+            id: *mut c_void,
+        }
+    } else if #[cfg(libressl)] {
+        #[repr(C)]
+        pub struct X509_VERIFY_PARAM {
+            pub name: *mut c_char,
+            pub check_time: time_t,
+            pub inh_flags: c_ulong,
+            pub flags: c_ulong,
+            pub purpose: c_int,
+            pub trust: c_int,
+            pub depth: c_int,
+            pub policies: *mut stack_st_ASN1_OBJECT,
+            //pub id: *mut X509_VERIFY_PARAM_ID,
+        }
+    } else {
+        #[repr(C)]
+        pub struct X509_VERIFY_PARAM {
+            pub name: *mut c_char,
+            pub check_time: time_t,
+            pub inh_flags: c_ulong,
+            pub flags: c_ulong,
+            pub purpose: c_int,
+            pub trust: c_int,
+            pub depth: c_int,
+            pub policies: *mut stack_st_ASN1_OBJECT,
+            #[cfg(ossl102)]
+            pub id: *mut X509_VERIFY_PARAM_ID,
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl270))] {
+        pub enum X509_OBJECT {}
+    } else {
+        #[repr(C)]
+        pub struct X509_OBJECT {
+            pub type_: c_int,
+            pub data: X509_OBJECT_data,
+        }
+        #[repr(C)]
+        pub union X509_OBJECT_data {
+            pub ptr: *mut c_char,
+            pub x509: *mut X509,
+            pub crl: *mut X509_CRL,
+            pub pkey: *mut EVP_PKEY,
+        }
+    }
+}
+
+pub enum X509_LOOKUP {}
+
+#[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,
+    #[cfg(ossl300)]
+    issuer_pkey: *mut c_void,
+    // I like the last comment line, it is copied from OpenSSL sources:
+    // Maybe more here
+}
+pub enum CONF {}
+#[cfg(ossl110)]
+pub enum OPENSSL_INIT_SETTINGS {}
+
+pub enum ENGINE {}
+cfg_if! {
+    if #[cfg(any(ossl110, libressl280))] {
+        pub enum SSL {}
+    } else if #[cfg(libressl251)] {
+        #[repr(C)]
+        pub struct SSL {
+            version: c_int,
+            method: *const SSL_METHOD,
+            rbio: *mut BIO,
+            wbio: *mut BIO,
+            bbio: *mut BIO,
+            pub server: c_int,
+            s3: *mut c_void,
+            d1: *mut c_void,
+            param: *mut c_void,
+            cipher_list: *mut stack_st_SSL_CIPHER,
+            cert: *mut c_void,
+            sid_ctx_length: c_uint,
+            sid_ctx: [c_uchar; SSL_MAX_SID_CTX_LENGTH as usize],
+            session: *mut SSL_SESSION,
+            verify_mode: c_int,
+            error: c_int,
+            error_code: c_int,
+            ctx: *mut SSL_CTX,
+            verify_result: c_long,
+            references: c_int,
+            client_version: c_int,
+            max_send_fragment: c_uint,
+            tlsext_hostname: *mut c_char,
+            tlsext_status_type: c_int,
+            initial_ctx: *mut SSL_CTX,
+            enc_read_ctx: *mut EVP_CIPHER_CTX,
+            read_hash: *mut EVP_MD_CTX,
+            internal: *mut c_void,
+        }
+    } else if #[cfg(libressl)] {
+        #[repr(C)]
+        pub struct SSL {
+            version: c_int,
+            type_: c_int,
+            method: *const SSL_METHOD,
+            rbio: *mut c_void,
+            wbio: *mut c_void,
+            bbio: *mut c_void,
+            rwstate: c_int,
+            in_handshake: c_int,
+            handshake_func: Option<unsafe extern "C" fn(*mut SSL) -> c_int>,
+            pub server: c_int,
+            new_session: c_int,
+            quiet_shutdown: c_int,
+            shutdown: c_int,
+            state: c_int,
+            rstate: c_int,
+            init_buf: *mut c_void,
+            init_msg: *mut c_void,
+            init_num: c_int,
+            init_off: c_int,
+            packet: *mut c_uchar,
+            packet_length: c_uint,
+            s3: *mut c_void,
+            d1: *mut c_void,
+            read_ahead: c_int,
+            msg_callback: Option<
+                unsafe extern "C" fn(c_int,
+                                    c_int,
+                                    c_int,
+                                    *const c_void,
+                                    size_t,
+                                    *mut SSL,
+                                    *mut c_void),
+            >,
+            msg_callback_arg: *mut c_void,
+            hit: c_int,
+            param: *mut c_void,
+            cipher_list: *mut stack_st_SSL_CIPHER,
+            cipher_list_by_id: *mut stack_st_SSL_CIPHER,
+            mac_flags: c_int,
+            aead_read_ctx: *mut c_void,
+            enc_read_ctx: *mut EVP_CIPHER_CTX,
+            read_hash: *mut EVP_MD_CTX,
+            aead_write_ctx: *mut c_void,
+            enc_write_ctx: *mut EVP_CIPHER_CTX,
+            write_hash: *mut EVP_MD_CTX,
+            cert: *mut c_void,
+            sid_ctx_length: c_uint,
+            sid_ctx: [c_uchar; SSL_MAX_SID_CTX_LENGTH as usize],
+            session: *mut SSL_SESSION,
+            generate_session_id: GEN_SESSION_CB,
+            verify_mode: c_int,
+            verify_callback: Option<unsafe extern "C" fn(c_int, *mut X509_STORE_CTX) -> c_int>,
+            info_callback: Option<unsafe extern "C" fn(*mut SSL, c_int, c_int)>,
+            error: c_int,
+            error_code: c_int,
+            ctx: *mut SSL_CTX,
+            debug: c_int,
+            verify_result: c_long,
+            ex_data: CRYPTO_EX_DATA,
+            client_CA: *mut stack_st_X509_NAME,
+            references: c_int,
+            options: c_ulong,
+            mode: c_ulong,
+            max_cert_list: c_long,
+            first_packet: c_int,
+            client_version: c_int,
+            max_send_fragment: c_uint,
+            tlsext_debug_cb:
+                Option<unsafe extern "C" fn(*mut SSL, c_int, c_int, *mut c_uchar, c_int, *mut c_void)>,
+            tlsext_debug_arg: *mut c_void,
+            tlsext_hostname: *mut c_char,
+            servername_done: c_int,
+            tlsext_status_type: c_int,
+            tlsext_status_expected: c_int,
+            tlsext_ocsp_ids: *mut c_void,
+            tlsext_ocsp_exts: *mut c_void,
+            tlsext_ocsp_resp: *mut c_uchar,
+            tlsext_ocsp_resplen: c_int,
+            tlsext_ticket_expected: c_int,
+            tlsext_ecpointformatlist_length: size_t,
+            tlsext_ecpointformatlist: *mut c_uchar,
+            tlsext_ellipticcurvelist_length: size_t,
+            tlsext_ellipticcurvelist: *mut c_uchar,
+            tlsext_session_ticket: *mut c_void,
+            tlsext_session_ticket_ext_cb: tls_session_ticket_ext_cb_fn,
+            tls_session_ticket_ext_cb_arg: *mut c_void,
+            tls_session_secret_cb: tls_session_secret_cb_fn,
+            tls_session_secret_cb_arg: *mut c_void,
+            initial_ctx: *mut SSL_CTX,
+            next_proto_negotiated: *mut c_uchar,
+            next_proto_negotiated_len: c_uchar,
+            srtp_profiles: *mut c_void,
+            srtp_profile: *mut c_void,
+            tlsext_heartbeat: c_uint,
+            tlsext_hb_pending: c_uint,
+            tlsext_hb_seq: c_uint,
+            alpn_client_proto_list: *mut c_uchar,
+            alpn_client_proto_list_len: c_uint,
+            renegotiate: c_int,
+        }
+    } else {
+        #[repr(C)]
+        pub struct SSL {
+            version: c_int,
+            type_: c_int,
+            method: *const SSL_METHOD,
+            rbio: *mut c_void,
+            wbio: *mut c_void,
+            bbio: *mut c_void,
+            rwstate: c_int,
+            in_handshake: c_int,
+            handshake_func: Option<unsafe extern "C" fn(*mut SSL) -> c_int>,
+            pub server: c_int,
+            new_session: c_int,
+            quiet_session: c_int,
+            shutdown: c_int,
+            state: c_int,
+            rstate: c_int,
+            init_buf: *mut c_void,
+            init_msg: *mut c_void,
+            init_num: c_int,
+            init_off: c_int,
+            packet: *mut c_uchar,
+            packet_length: c_uint,
+            s2: *mut c_void,
+            s3: *mut c_void,
+            d1: *mut c_void,
+            read_ahead: c_int,
+            msg_callback: Option<
+                unsafe extern "C" fn(c_int, c_int, c_int, *const c_void, size_t, *mut SSL, *mut c_void),
+            >,
+            msg_callback_arg: *mut c_void,
+            hit: c_int,
+            param: *mut c_void,
+            cipher_list: *mut stack_st_SSL_CIPHER,
+            cipher_list_by_id: *mut stack_st_SSL_CIPHER,
+            mac_flags: c_int,
+            enc_read_ctx: *mut EVP_CIPHER_CTX,
+            read_hash: *mut EVP_MD_CTX,
+            expand: *mut c_void,
+            enc_write_ctx: *mut EVP_CIPHER_CTX,
+            write_hash: *mut EVP_MD_CTX,
+            compress: *mut c_void,
+            cert: *mut c_void,
+            sid_ctx_length: c_uint,
+            sid_ctx: [c_uchar; SSL_MAX_SID_CTX_LENGTH as usize],
+            session: *mut SSL_SESSION,
+            generate_session_id: GEN_SESSION_CB,
+            verify_mode: c_int,
+            verify_callback: Option<unsafe extern "C" fn(c_int, *mut X509_STORE_CTX) -> c_int>,
+            info_callback: Option<unsafe extern "C" fn(*mut SSL, c_int, c_int)>,
+            error: c_int,
+            error_code: c_int,
+            #[cfg(not(osslconf = "OPENSSL_NO_KRB5"))]
+            kssl_ctx: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_PSK"))]
+            psk_client_callback: Option<
+                unsafe extern "C" fn(*mut SSL, *const c_char, *mut c_char, c_uint, *mut c_uchar, c_uint)
+                    -> c_uint,
+            >,
+            #[cfg(not(osslconf = "OPENSSL_NO_PSK"))]
+            psk_server_callback:
+                Option<unsafe extern "C" fn(*mut SSL, *const c_char, *mut c_uchar, c_uint) -> c_uint>,
+            ctx: *mut SSL_CTX,
+            debug: c_int,
+            verify_result: c_long,
+            ex_data: CRYPTO_EX_DATA,
+            client_CA: *mut stack_st_X509_NAME,
+            references: c_int,
+            options: c_ulong,
+            mode: c_ulong,
+            max_cert_list: c_long,
+            first_packet: c_int,
+            client_version: c_int,
+            max_send_fragment: c_uint,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_debug_cb:
+                Option<unsafe extern "C" fn(*mut SSL, c_int, c_int, *mut c_uchar, c_int, *mut c_void)>,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_debug_arg: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_hostname: *mut c_char,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            servername_done: c_int,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_status_type: c_int,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_status_expected: c_int,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_ocsp_ids: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_ocsp_exts: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_ocsp_resp: *mut c_uchar,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_ocsp_resplen: c_int,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_ticket_expected: c_int,
+            #[cfg(all(
+                not(osslconf = "OPENSSL_NO_TLSEXT"),
+                not(osslconf = "OPENSSL_NO_EC")
+            ))]
+            tlsext_ecpointformatlist_length: size_t,
+            #[cfg(all(
+                not(osslconf = "OPENSSL_NO_TLSEXT"),
+                not(osslconf = "OPENSSL_NO_EC")
+            ))]
+            tlsext_ecpointformatlist: *mut c_uchar,
+            #[cfg(all(
+                not(osslconf = "OPENSSL_NO_TLSEXT"),
+                not(osslconf = "OPENSSL_NO_EC")
+            ))]
+            tlsext_ellipticcurvelist_length: size_t,
+            #[cfg(all(
+                not(osslconf = "OPENSSL_NO_TLSEXT"),
+                not(osslconf = "OPENSSL_NO_EC")
+            ))]
+            tlsext_ellipticcurvelist: *mut c_uchar,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_opaque_prf_input: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_opaque_prf_input_len: size_t,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_session_ticket: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_session_ticket_ext_cb: tls_session_ticket_ext_cb_fn,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tls_session_ticket_ext_cb_arg: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tls_session_secret_cb: tls_session_secret_cb_fn,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tls_session_secret_cb_arg: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            initial_ctx: *mut SSL_CTX,
+            #[cfg(all(
+                not(osslconf = "OPENSSL_NO_TLSEXT"),
+                not(osslconf = "OPENSSL_NO_NEXTPROTONEG")
+            ))]
+            next_proto_negotiated: *mut c_uchar,
+            #[cfg(all(
+                not(osslconf = "OPENSSL_NO_TLSEXT"),
+                not(osslconf = "OPENSSL_NO_NEXTPROTONEG")
+            ))]
+            next_proto_negotiated_len: c_uchar,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            srtp_profiles: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            srtp_profile: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_heartbeat: c_uint,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_hb_pending: c_uint,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_hb_seq: c_uint,
+            renegotiate: c_int,
+            #[cfg(not(osslconf = "OPENSSL_NO_SRP"))]
+            srp_ctx: SRP_CTX,
+            #[cfg(all(not(osslconf = "OPENSSL_NO_TLSEXT"), ossl102))]
+            alpn_client_proto_list: *mut c_uchar,
+            #[cfg(all(not(osslconf = "OPENSSL_NO_TLSEXT"), ossl102))]
+            alpn_client_proto_list_len: c_uint,
+        }
+    }
+}
+cfg_if! {
+    if #[cfg(any(ossl110, libressl280))] {
+        pub enum SSL_CTX {}
+    } else if #[cfg(libressl251)] {
+        #[repr(C)]
+        pub struct SSL_CTX {
+            method: *const SSL_METHOD,
+            cipher_list: *mut stack_st_SSL_CIPHER,
+            cert_store: *mut c_void,
+            session_timeout: c_long,
+            pub references: c_int,
+            extra_certs: *mut stack_st_X509,
+            verify_mode: c_int,
+            sid_ctx_length: c_uint,
+            sid_ctx: [c_uchar; SSL_MAX_SID_CTX_LENGTH as usize],
+            param: *mut X509_VERIFY_PARAM,
+            default_passwd_callback: *mut c_void,
+            default_passwd_callback_userdata: *mut c_void,
+            internal: *mut c_void,
+        }
+    } else if #[cfg(libressl)] {
+        #[repr(C)]
+        pub struct SSL_CTX {
+            method: *mut c_void,
+            cipher_list: *mut c_void,
+            cipher_list_by_id: *mut c_void,
+            cert_store: *mut c_void,
+            sessions: *mut c_void,
+            session_cache_size: c_ulong,
+            session_cache_head: *mut c_void,
+            session_cache_tail: *mut c_void,
+            session_cache_mode: c_int,
+            session_timeout: c_long,
+            new_session_cb: *mut c_void,
+            remove_session_cb: *mut c_void,
+            get_session_cb: *mut c_void,
+            stats: [c_int; 11],
+            pub references: c_int,
+            app_verify_callback: *mut c_void,
+            app_verify_arg: *mut c_void,
+            default_passwd_callback: *mut c_void,
+            default_passwd_callback_userdata: *mut c_void,
+            client_cert_cb: *mut c_void,
+            app_gen_cookie_cb: *mut c_void,
+            app_verify_cookie_cb: *mut c_void,
+            ex_dat: CRYPTO_EX_DATA,
+            rsa_md5: *mut c_void,
+            md5: *mut c_void,
+            sha1: *mut c_void,
+            extra_certs: *mut c_void,
+            comp_methods: *mut c_void,
+            info_callback: *mut c_void,
+            client_CA: *mut c_void,
+            options: c_ulong,
+            mode: c_ulong,
+            max_cert_list: c_long,
+            cert: *mut c_void,
+            read_ahead: c_int,
+            msg_callback: *mut c_void,
+            msg_callback_arg: *mut c_void,
+            verify_mode: c_int,
+            sid_ctx_length: c_uint,
+            sid_ctx: [c_uchar; 32],
+            default_verify_callback: *mut c_void,
+            generate_session_id: *mut c_void,
+            param: *mut c_void,
+            quiet_shutdown: c_int,
+            max_send_fragment: c_uint,
+
+            #[cfg(not(osslconf = "OPENSSL_NO_ENGINE"))]
+            client_cert_engine: *mut c_void,
+
+            tlsext_servername_callback: *mut c_void,
+            tlsect_servername_arg: *mut c_void,
+            tlsext_tick_key_name: [c_uchar; 16],
+            tlsext_tick_hmac_key: [c_uchar; 16],
+            tlsext_tick_aes_key: [c_uchar; 16],
+            tlsext_ticket_key_cb: *mut c_void,
+            tlsext_status_cb: *mut c_void,
+            tlsext_status_arg: *mut c_void,
+            tlsext_opaque_prf_input_callback: *mut c_void,
+            tlsext_opaque_prf_input_callback_arg: *mut c_void,
+
+            next_protos_advertised_cb: *mut c_void,
+            next_protos_advertised_cb_arg: *mut c_void,
+            next_proto_select_cb: *mut c_void,
+            next_proto_select_cb_arg: *mut c_void,
+
+            srtp_profiles: *mut c_void,
+        }
+    } else {
+        #[repr(C)]
+        pub struct SSL_CTX {
+            method: *mut c_void,
+            cipher_list: *mut c_void,
+            cipher_list_by_id: *mut c_void,
+            cert_store: *mut c_void,
+            sessions: *mut c_void,
+            session_cache_size: c_ulong,
+            session_cache_head: *mut c_void,
+            session_cache_tail: *mut c_void,
+            session_cache_mode: c_int,
+            session_timeout: c_long,
+            new_session_cb: *mut c_void,
+            remove_session_cb: *mut c_void,
+            get_session_cb: *mut c_void,
+            stats: [c_int; 11],
+            pub references: c_int,
+            app_verify_callback: *mut c_void,
+            app_verify_arg: *mut c_void,
+            default_passwd_callback: *mut c_void,
+            default_passwd_callback_userdata: *mut c_void,
+            client_cert_cb: *mut c_void,
+            app_gen_cookie_cb: *mut c_void,
+            app_verify_cookie_cb: *mut c_void,
+            ex_dat: CRYPTO_EX_DATA,
+            rsa_md5: *mut c_void,
+            md5: *mut c_void,
+            sha1: *mut c_void,
+            extra_certs: *mut c_void,
+            comp_methods: *mut c_void,
+            info_callback: *mut c_void,
+            client_CA: *mut c_void,
+            options: c_ulong,
+            mode: c_ulong,
+            max_cert_list: c_long,
+            cert: *mut c_void,
+            read_ahead: c_int,
+            msg_callback: *mut c_void,
+            msg_callback_arg: *mut c_void,
+            verify_mode: c_int,
+            sid_ctx_length: c_uint,
+            sid_ctx: [c_uchar; 32],
+            default_verify_callback: *mut c_void,
+            generate_session_id: *mut c_void,
+            param: *mut c_void,
+            quiet_shutdown: c_int,
+            max_send_fragment: c_uint,
+
+            #[cfg(not(osslconf = "OPENSSL_NO_ENGINE"))]
+            client_cert_engine: *mut c_void,
+
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_servername_callback: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsect_servername_arg: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_tick_key_name: [c_uchar; 16],
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_tick_hmac_key: [c_uchar; 16],
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_tick_aes_key: [c_uchar; 16],
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_ticket_key_cb: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_status_cb: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_status_arg: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_opaque_prf_input_callback: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_TLSEXT"))]
+            tlsext_opaque_prf_input_callback_arg: *mut c_void,
+
+            #[cfg(not(osslconf = "OPENSSL_NO_PSK"))]
+            psk_identity_hint: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_PSK"))]
+            psk_client_callback: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_PSK"))]
+            psk_server_callback: *mut c_void,
+
+            #[cfg(not(osslconf = "OPENSSL_NO_BUF_FREELISTS"))]
+            freelist_max_len: c_uint,
+            #[cfg(not(osslconf = "OPENSSL_NO_BUF_FREELISTS"))]
+            wbuf_freelist: *mut c_void,
+            #[cfg(not(osslconf = "OPENSSL_NO_BUF_FREELISTS"))]
+            rbuf_freelist: *mut c_void,
+
+            #[cfg(not(osslconf = "OPENSSL_NO_SRP"))]
+            srp_ctx: SRP_CTX,
+
+            #[cfg(all(
+                not(osslconf = "OPENSSL_NO_TLSEXT"),
+                not(osslconf = "OPENSSL_NO_NEXTPROTONEG")
+            ))]
+            next_protos_advertised_cb: *mut c_void,
+            #[cfg(all(
+                not(osslconf = "OPENSSL_NO_TLSEXT"),
+                not(osslconf = "OPENSSL_NO_NEXTPROTONEG")
+            ))]
+            next_protos_advertised_cb_arg: *mut c_void,
+            #[cfg(all(
+                not(osslconf = "OPENSSL_NO_TLSEXT"),
+                not(osslconf = "OPENSSL_NO_NEXTPROTONEG")
+            ))]
+            next_proto_select_cb: *mut c_void,
+            #[cfg(all(
+                not(osslconf = "OPENSSL_NO_TLSEXT"),
+                not(osslconf = "OPENSSL_NO_NEXTPROTONEG")
+            ))]
+            next_proto_select_cb_arg: *mut c_void,
+
+            #[cfg(all(not(osslconf = "OPENSSL_NO_TLSEXT"), ossl101))]
+            srtp_profiles: *mut c_void,
+            #[cfg(all(not(osslconf = "OPENSSL_NO_TLSEXT"), ossl102))]
+            alpn_select_cb: *mut c_void,
+            #[cfg(all(not(osslconf = "OPENSSL_NO_TLSEXT"), ossl102))]
+            alpn_select_cb_arg: *mut c_void,
+            #[cfg(all(not(osslconf = "OPENSSL_NO_TLSEXT"), ossl102))]
+            alpn_client_proto_list: *mut c_void,
+            #[cfg(all(not(osslconf = "OPENSSL_NO_TLSEXT"), ossl102))]
+            alpn_client_proto_list_len: c_uint,
+
+            #[cfg(all(
+                not(osslconf = "OPENSSL_NO_TLSEXT"),
+                not(osslconf = "OPENSSL_NO_EC"),
+                ossl102
+            ))]
+            tlsext_ecpointformatlist_length: size_t,
+            #[cfg(all(
+                not(osslconf = "OPENSSL_NO_TLSEXT"),
+                not(osslconf = "OPENSSL_NO_EC"),
+                ossl102
+            ))]
+            tlsext_ecpointformatlist: *mut c_uchar,
+            #[cfg(all(
+                not(osslconf = "OPENSSL_NO_TLSEXT"),
+                not(osslconf = "OPENSSL_NO_EC"),
+                ossl102
+            ))]
+            tlsext_ellipticcurvelist_length: size_t,
+            #[cfg(all(
+                not(osslconf = "OPENSSL_NO_TLSEXT"),
+                not(osslconf = "OPENSSL_NO_EC"),
+                ossl102
+            ))]
+            tlsext_ellipticcurvelist: *mut c_uchar,
+        }
+
+        #[repr(C)]
+        #[cfg(not(osslconf = "OPENSSL_NO_SRP"))]
+        pub struct SRP_CTX {
+            SRP_cb_arg: *mut c_void,
+            TLS_ext_srp_username_callback: *mut c_void,
+            SRP_verify_param_callback: *mut c_void,
+            SRP_give_srp_client_pwd_callback: *mut c_void,
+            login: *mut c_void,
+            N: *mut c_void,
+            g: *mut c_void,
+            s: *mut c_void,
+            B: *mut c_void,
+            A: *mut c_void,
+            a: *mut c_void,
+            b: *mut c_void,
+            v: *mut c_void,
+            info: *mut c_void,
+            stringth: c_int,
+            srp_Mask: c_ulong,
+        }
+    }
+}
+
+pub enum COMP_CTX {}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl350))] {
+        pub enum COMP_METHOD {}
+    } else {
+        #[repr(C)]
+        pub struct COMP_METHOD {
+            pub type_: c_int,
+            pub name: *const c_char,
+            init: Option<unsafe extern "C" fn(*mut COMP_CTX) -> c_int>,
+            finish: Option<unsafe extern "C" fn(*mut COMP_CTX)>,
+            compress: Option<
+                unsafe extern "C" fn(
+                    *mut COMP_CTX,
+                    *mut c_uchar,
+                    c_uint,
+                    *mut c_uchar,
+                    c_uint,
+                ) -> c_int,
+            >,
+            expand: Option<
+                unsafe extern "C" fn(
+                    *mut COMP_CTX,
+                    *mut c_uchar,
+                    c_uint,
+                    *mut c_uchar,
+                    c_uint,
+                ) -> c_int,
+            >,
+            ctrl: Option<unsafe extern "C" fn() -> c_long>,
+            callback_ctrl: Option<unsafe extern "C" fn() -> c_long>,
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl280))] {
+        pub enum CRYPTO_EX_DATA {}
+    } else if #[cfg(libressl)] {
+        #[repr(C)]
+        pub struct CRYPTO_EX_DATA {
+            pub sk: *mut stack_st_void,
+        }
+    } else {
+        #[repr(C)]
+        pub struct CRYPTO_EX_DATA {
+            pub sk: *mut stack_st_void,
+            pub dummy: c_int,
+        }
+    }
+}
+
+pub enum OCSP_RESPONSE {}
+
+#[cfg(ossl300)]
+pub enum OSSL_PROVIDER {}
+
+#[cfg(ossl300)]
+pub enum OSSL_LIB_CTX {}
diff --git a/vendor/openssl-sys/src/handwritten/x509.rs b/vendor/openssl-sys/src/handwritten/x509.rs
new file mode 100644
index 0000000..f5e3c24
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/x509.rs
@@ -0,0 +1,767 @@
+use super::super::*;
+use libc::*;
+
+#[repr(C)]
+pub struct X509_VAL {
+    pub notBefore: *mut ASN1_TIME,
+    pub notAfter: *mut ASN1_TIME,
+}
+
+pub enum X509_NAME_ENTRY {}
+
+stack!(stack_st_X509_NAME_ENTRY);
+
+stack!(stack_st_X509_NAME);
+
+pub enum X509_EXTENSION {}
+
+stack!(stack_st_X509_EXTENSION);
+
+pub enum X509_ATTRIBUTE {}
+
+stack!(stack_st_X509_ATTRIBUTE);
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl350))] {
+        pub enum X509_REQ_INFO {}
+    } else {
+        #[repr(C)]
+        pub struct X509_REQ_INFO {
+            pub enc: ASN1_ENCODING,
+            pub version: *mut ASN1_INTEGER,
+            pub subject: *mut X509_NAME,
+            pubkey: *mut c_void,
+            pub attributes: *mut stack_st_X509_ATTRIBUTE,
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl350))] {
+        pub enum X509_CRL {}
+    } else {
+        #[repr(C)]
+        pub struct X509_CRL {
+            pub crl: *mut X509_CRL_INFO,
+            sig_alg: *mut X509_ALGOR,
+            signature: *mut c_void,
+            references: c_int,
+            flags: c_int,
+            akid: *mut c_void,
+            idp: *mut c_void,
+            idp_flags: c_int,
+            idp_reasons: c_int,
+            crl_number: *mut ASN1_INTEGER,
+            base_crl_number: *mut ASN1_INTEGER,
+            sha1_hash: [c_uchar; 20],
+            issuers: *mut c_void,
+            meth: *const c_void,
+            meth_data: *mut c_void,
+        }
+    }
+}
+
+stack!(stack_st_X509_CRL);
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl350))] {
+        pub enum X509_CRL_INFO {}
+    } else {
+        #[repr(C)]
+        pub struct X509_CRL_INFO {
+            version: *mut ASN1_INTEGER,
+            sig_alg: *mut X509_ALGOR,
+            pub issuer: *mut X509_NAME,
+            pub lastUpdate: *mut ASN1_TIME,
+            pub nextUpdate: *mut ASN1_TIME,
+            pub revoked: *mut stack_st_X509_REVOKED,
+            extensions: *mut stack_st_X509_EXTENSION,
+            enc: ASN1_ENCODING,
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl350))] {
+        pub enum X509_REVOKED {}
+    } else {
+        #[repr(C)]
+        pub struct X509_REVOKED {
+            pub serialNumber: *mut ASN1_INTEGER,
+            pub revocationDate: *mut ASN1_TIME,
+            pub extensions: *mut stack_st_X509_EXTENSION,
+            issuer: *mut stack_st_GENERAL_NAME,
+            reason: c_int,
+            sequence: c_int,
+        }
+    }
+}
+
+stack!(stack_st_X509_REVOKED);
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl350))] {
+        pub enum X509_REQ {}
+    } else {
+        #[repr(C)]
+        pub struct X509_REQ {
+            pub req_info: *mut X509_REQ_INFO,
+            sig_alg: *mut c_void,
+            signature: *mut c_void,
+            references: c_int,
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl350))] {
+        pub enum X509_CINF {}
+    } else {
+        #[repr(C)]
+        pub struct X509_CINF {
+            version: *mut c_void,
+            serialNumber: *mut c_void,
+            signature: *mut c_void,
+            issuer: *mut c_void,
+            pub validity: *mut X509_VAL,
+            subject: *mut c_void,
+            key: *mut c_void,
+            issuerUID: *mut c_void,
+            subjectUID: *mut c_void,
+            pub extensions: *mut stack_st_X509_EXTENSION,
+            enc: ASN1_ENCODING,
+        }
+    }
+}
+
+stack!(stack_st_X509);
+
+stack!(stack_st_X509_OBJECT);
+
+stack!(stack_st_X509_LOOKUP);
+
+extern "C" {
+    pub fn X509_verify_cert_error_string(n: c_long) -> *const c_char;
+
+    pub fn X509_sign(x: *mut X509, pkey: *mut EVP_PKEY, md: *const EVP_MD) -> c_int;
+
+    pub fn X509_digest(
+        x: *const X509,
+        digest: *const EVP_MD,
+        buf: *mut c_uchar,
+        len: *mut c_uint,
+    ) -> c_int;
+
+    pub fn X509_REQ_sign(x: *mut X509_REQ, pkey: *mut EVP_PKEY, md: *const EVP_MD) -> c_int;
+}
+
+const_ptr_api! {
+    extern "C" {
+        pub fn i2d_X509_bio(b: *mut BIO, x: #[const_ptr_if(ossl300)] X509) -> c_int;
+        pub fn i2d_X509_REQ_bio(b: *mut BIO, x: #[const_ptr_if(ossl300)] X509_REQ) -> c_int;
+        pub fn i2d_PrivateKey_bio(b: *mut BIO, x: #[const_ptr_if(ossl300)] EVP_PKEY) -> c_int;
+        pub fn i2d_PUBKEY_bio(b: *mut BIO, x: #[const_ptr_if(ossl300)] EVP_PKEY) -> c_int;
+
+        pub fn i2d_PUBKEY(k: #[const_ptr_if(ossl300)] EVP_PKEY, buf: *mut *mut u8) -> c_int;
+        pub fn i2d_RSA_PUBKEY(k: #[const_ptr_if(ossl300)] RSA, buf: *mut *mut u8) -> c_int;
+        pub fn i2d_DSA_PUBKEY(a: #[const_ptr_if(ossl300)] DSA, pp: *mut *mut c_uchar) -> c_int;
+        pub fn i2d_PrivateKey(k: #[const_ptr_if(ossl300)] EVP_PKEY, buf: *mut *mut u8) -> c_int;
+        pub fn i2d_ECPrivateKey(ec_key: #[const_ptr_if(ossl300)] EC_KEY, pp: *mut *mut c_uchar) -> c_int;
+        pub fn i2d_EC_PUBKEY(a: #[const_ptr_if(ossl300)] EC_KEY, pp: *mut *mut c_uchar) -> c_int;
+    }
+}
+extern "C" {
+    pub fn d2i_PUBKEY(k: *mut *mut EVP_PKEY, buf: *mut *const u8, len: c_long) -> *mut EVP_PKEY;
+    pub fn d2i_RSA_PUBKEY(k: *mut *mut RSA, buf: *mut *const u8, len: c_long) -> *mut RSA;
+    pub fn d2i_DSA_PUBKEY(k: *mut *mut DSA, pp: *mut *const c_uchar, length: c_long) -> *mut DSA;
+    pub fn d2i_EC_PUBKEY(
+        a: *mut *mut EC_KEY,
+        pp: *mut *const c_uchar,
+        length: c_long,
+    ) -> *mut EC_KEY;
+
+    pub fn d2i_ECPrivateKey(
+        k: *mut *mut EC_KEY,
+        pp: *mut *const c_uchar,
+        length: c_long,
+    ) -> *mut EC_KEY;
+}
+
+const_ptr_api! {
+    extern "C" {
+        #[cfg(any(ossl102, libressl350))]
+        pub fn X509_ALGOR_get0(
+            paobj: *mut #[const_ptr_if(any(ossl110, libressl350))] ASN1_OBJECT,
+            pptype: *mut c_int,
+            ppval: *mut #[const_ptr_if(any(ossl110, libressl350))] c_void,
+            alg: #[const_ptr_if(any(ossl110, libressl350))] X509_ALGOR,
+        );
+    }
+}
+
+extern "C" {
+    pub fn X509_gmtime_adj(time: *mut ASN1_TIME, adj: c_long) -> *mut ASN1_TIME;
+
+    pub fn X509_to_X509_REQ(x: *mut X509, pkey: *mut EVP_PKEY, md: *const EVP_MD) -> *mut X509_REQ;
+
+    pub fn X509_ALGOR_free(x: *mut X509_ALGOR);
+
+    pub fn X509_REVOKED_new() -> *mut X509_REVOKED;
+    pub fn X509_REVOKED_free(x: *mut X509_REVOKED);
+}
+const_ptr_api! {
+    extern "C" {
+        #[cfg(any(ossl110, libressl270))]
+        pub fn X509_REVOKED_dup(rev: #[const_ptr_if(ossl300)] X509_REVOKED) -> *mut X509_REVOKED;
+    }
+}
+
+extern "C" {
+    pub fn d2i_X509_REVOKED(
+        a: *mut *mut X509_REVOKED,
+        pp: *mut *const c_uchar,
+        length: c_long,
+    ) -> *mut X509_REVOKED;
+}
+const_ptr_api! {
+    extern "C" {
+        pub fn i2d_X509_REVOKED(x: #[const_ptr_if(ossl300)] X509_REVOKED, buf: *mut *mut u8) -> c_int;
+    }
+}
+extern "C" {
+    pub fn X509_CRL_new() -> *mut X509_CRL;
+    pub fn X509_CRL_free(x: *mut X509_CRL);
+    pub fn d2i_X509_CRL(
+        a: *mut *mut X509_CRL,
+        pp: *mut *const c_uchar,
+        length: c_long,
+    ) -> *mut X509_CRL;
+}
+const_ptr_api! {
+    extern "C" {
+        pub fn i2d_X509_CRL(x: #[const_ptr_if(ossl300)] X509_CRL, buf: *mut *mut u8) -> c_int;
+        #[cfg(any(ossl110, libressl270))]
+        pub fn X509_CRL_dup(x: #[const_ptr_if(ossl300)] X509_CRL) -> *mut X509_CRL;
+    }
+}
+
+extern "C" {
+    pub fn X509_REQ_new() -> *mut X509_REQ;
+    pub fn X509_REQ_free(x: *mut X509_REQ);
+    pub fn d2i_X509_REQ(
+        a: *mut *mut X509_REQ,
+        pp: *mut *const c_uchar,
+        length: c_long,
+    ) -> *mut X509_REQ;
+}
+const_ptr_api! {
+    extern "C" {
+        pub fn i2d_X509_REQ(x: #[const_ptr_if(ossl300)] X509_REQ, buf: *mut *mut u8) -> c_int;
+
+        #[cfg(any(ossl102, libressl273))]
+        pub fn X509_get0_signature(
+            psig: *mut #[const_ptr_if(any(ossl110, libressl273))] ASN1_BIT_STRING,
+            palg: *mut #[const_ptr_if(any(ossl110, libressl273))] X509_ALGOR,
+            x: *const X509,
+        );
+
+        #[cfg(any(ossl110, libressl270))]
+        pub fn X509_REQ_dup(x: #[const_ptr_if(ossl300)] X509_REQ) -> *mut X509_REQ;
+    }
+}
+extern "C" {
+    #[cfg(ossl102)]
+    pub fn X509_get_signature_nid(x: *const X509) -> c_int;
+
+    pub fn X509_EXTENSION_free(ext: *mut X509_EXTENSION);
+
+    pub fn X509_NAME_ENTRY_free(x: *mut X509_NAME_ENTRY);
+
+    pub fn X509_NAME_new() -> *mut X509_NAME;
+    pub fn X509_NAME_cmp(x: *const X509_NAME, y: *const X509_NAME) -> c_int;
+    pub fn X509_NAME_free(x: *mut X509_NAME);
+
+    pub fn X509_new() -> *mut X509;
+    pub fn X509_free(x: *mut X509);
+}
+const_ptr_api! {
+    extern "C" {
+        pub fn i2d_X509(x: #[const_ptr_if(ossl300)] X509, buf: *mut *mut u8) -> c_int;
+        #[cfg(any(ossl110, libressl270))]
+        pub fn X509_NAME_dup(x: #[const_ptr_if(ossl300)] X509_NAME) -> *mut X509_NAME;
+        #[cfg(any(ossl110, libressl270))]
+        pub fn X509_dup(x: #[const_ptr_if(ossl300)] X509) -> *mut X509;
+        #[cfg(any(ossl101, libressl350))]
+        pub fn X509_NAME_add_entry(
+            name: *mut X509_NAME,
+            ne: #[const_ptr_if(any(ossl110, libressl))] X509_NAME_ENTRY,
+            loc: c_int,
+            set: c_int,
+            ) -> c_int;
+    }
+}
+extern "C" {
+    pub fn d2i_X509(a: *mut *mut X509, pp: *mut *const c_uchar, length: c_long) -> *mut X509;
+    pub fn d2i_X509_bio(b: *mut BIO, a: *mut *mut X509) -> *mut X509;
+
+    pub fn X509_get_pubkey(x: *mut X509) -> *mut EVP_PKEY;
+
+    pub fn X509_set_version(x: *mut X509, version: c_long) -> c_int;
+    #[cfg(ossl110)]
+    pub fn X509_get_version(x: *const X509) -> c_long;
+    pub fn X509_set_serialNumber(x: *mut X509, sn: *mut ASN1_INTEGER) -> c_int;
+    pub fn X509_get_serialNumber(x: *mut X509) -> *mut ASN1_INTEGER;
+}
+const_ptr_api! {
+    extern "C" {
+        pub fn X509_set_issuer_name(x: *mut X509, name: #[const_ptr_if(ossl300)] X509_NAME) -> c_int;
+    }
+}
+extern "C" {
+    pub fn X509_issuer_name_hash(x: *mut X509) -> c_ulong;
+    pub fn X509_subject_name_hash(x: *mut X509) -> c_ulong;
+}
+const_ptr_api! {
+    extern "C" {
+        pub fn X509_get_issuer_name(x: #[const_ptr_if(any(ossl110, libressl280))] X509) -> *mut X509_NAME;
+        pub fn X509_set_subject_name(x: *mut X509, name: #[const_ptr_if(ossl300)] X509_NAME) -> c_int;
+        pub fn X509_get_subject_name(x: #[const_ptr_if(any(ossl110, libressl280))] X509) -> *mut X509_NAME;
+    }
+}
+cfg_if! {
+    if #[cfg(any(ossl110, libressl350))] {
+        extern "C" {
+            pub fn X509_set1_notBefore(x: *mut X509, tm: *const ASN1_TIME) -> c_int;
+            pub fn X509_set1_notAfter(x: *mut X509, tm: *const ASN1_TIME) -> c_int;
+        }
+    } else {
+        extern "C" {
+            pub fn X509_set_notBefore(x: *mut X509, tm: *const ASN1_TIME) -> c_int;
+            pub fn X509_set_notAfter(x: *mut X509, tm: *const ASN1_TIME) -> c_int;
+        }
+    }
+}
+extern "C" {
+    #[cfg(any(ossl110, libressl350))]
+    pub fn X509_REQ_get_version(req: *const X509_REQ) -> c_long;
+    pub fn X509_REQ_set_version(req: *mut X509_REQ, version: c_long) -> c_int;
+    #[cfg(any(ossl110, libressl350))]
+    pub fn X509_REQ_get_subject_name(req: *const X509_REQ) -> *mut X509_NAME;
+}
+const_ptr_api! {
+    extern "C" {
+        pub fn X509_REQ_set_subject_name(req: *mut X509_REQ, name: #[const_ptr_if(ossl300)] X509_NAME) -> c_int;
+    }
+}
+extern "C" {
+    pub fn X509_REQ_set_pubkey(req: *mut X509_REQ, pkey: *mut EVP_PKEY) -> c_int;
+    pub fn X509_REQ_get_pubkey(req: *mut X509_REQ) -> *mut EVP_PKEY;
+    pub fn X509_REQ_get_extensions(req: *mut X509_REQ) -> *mut stack_st_X509_EXTENSION;
+}
+const_ptr_api! {
+    extern "C" {
+        pub fn X509_REQ_add_extensions(req: *mut X509_REQ, exts: #[const_ptr_if(ossl300)] stack_st_X509_EXTENSION)
+            -> c_int;
+    }
+}
+extern "C" {
+    pub fn X509_REQ_get_attr_count(req: *const X509_REQ) -> c_int;
+    pub fn X509_REQ_get_attr_by_NID(req: *const X509_REQ, nid: c_int, lastpos: c_int) -> c_int;
+    pub fn X509_REQ_get_attr(req: *const X509_REQ, loc: c_int) -> *mut X509_ATTRIBUTE;
+    pub fn X509_REQ_delete_attr(req: *mut X509_REQ, loc: c_int) -> *mut X509_ATTRIBUTE;
+    pub fn X509_REQ_add1_attr_by_txt(
+        req: *mut X509_REQ,
+        attrname: *const c_char,
+        chtype: c_int,
+        bytes: *const c_uchar,
+        len: c_int,
+    ) -> c_int;
+    pub fn X509_REQ_add1_attr_by_NID(
+        req: *mut X509_REQ,
+        nid: c_int,
+        chtype: c_int,
+        bytes: *const c_uchar,
+        len: c_int,
+    ) -> c_int;
+    pub fn X509_REQ_add1_attr_by_OBJ(
+        req: *mut X509_REQ,
+        obj: *const ASN1_OBJECT,
+        chtype: c_int,
+        bytes: *const c_uchar,
+        len: c_int,
+    ) -> c_int;
+}
+extern "C" {
+    pub fn X509_set_pubkey(x: *mut X509, pkey: *mut EVP_PKEY) -> c_int;
+    pub fn X509_REQ_verify(req: *mut X509_REQ, pkey: *mut EVP_PKEY) -> c_int;
+    #[cfg(any(ossl110, libressl273))]
+    pub fn X509_getm_notBefore(x: *const X509) -> *mut ASN1_TIME;
+    #[cfg(any(ossl110, libressl273))]
+    pub fn X509_getm_notAfter(x: *const X509) -> *mut ASN1_TIME;
+    #[cfg(any(ossl110, libressl273))]
+    pub fn X509_up_ref(x: *mut X509) -> c_int;
+
+    #[cfg(any(ossl110, libressl270))]
+    pub fn X509_REVOKED_get0_serialNumber(req: *const X509_REVOKED) -> *const ASN1_INTEGER;
+    #[cfg(any(ossl110, libressl270))]
+    pub fn X509_REVOKED_get0_revocationDate(req: *const X509_REVOKED) -> *const ASN1_TIME;
+    #[cfg(any(ossl110, libressl270))]
+    pub fn X509_REVOKED_get0_extensions(r: *const X509_REVOKED) -> *const stack_st_X509_EXTENSION;
+
+    pub fn X509_REVOKED_set_serialNumber(r: *mut X509_REVOKED, serial: *mut ASN1_INTEGER) -> c_int;
+    pub fn X509_REVOKED_set_revocationDate(r: *mut X509_REVOKED, tm: *mut ASN1_TIME) -> c_int;
+
+    pub fn X509_CRL_sign(x: *mut X509_CRL, pkey: *mut EVP_PKEY, md: *const EVP_MD) -> c_int;
+    pub fn X509_CRL_digest(
+        x: *const X509_CRL,
+        digest: *const EVP_MD,
+        md: *mut c_uchar,
+        len: *mut c_uint,
+    ) -> c_int;
+    pub fn X509_CRL_verify(crl: *mut X509_CRL, pkey: *mut EVP_PKEY) -> c_int;
+    pub fn X509_CRL_get0_by_cert(
+        x: *mut X509_CRL,
+        ret: *mut *mut X509_REVOKED,
+        cert: *mut X509,
+    ) -> c_int;
+}
+const_ptr_api! {
+    extern "C" {
+        pub fn X509_CRL_get0_by_serial(
+            x: *mut X509_CRL,
+            ret: *mut *mut X509_REVOKED,
+            serial: #[const_ptr_if(ossl300)] ASN1_INTEGER,
+        ) -> c_int;
+    }
+}
+
+extern "C" {
+    #[cfg(any(ossl110, libressl281))]
+    pub fn X509_CRL_get_REVOKED(crl: *mut X509_CRL) -> *mut stack_st_X509_REVOKED;
+    #[cfg(any(ossl110, libressl281))]
+    pub fn X509_CRL_get0_nextUpdate(x: *const X509_CRL) -> *const ASN1_TIME;
+    #[cfg(any(ossl110, libressl281))]
+    pub fn X509_CRL_get0_lastUpdate(x: *const X509_CRL) -> *const ASN1_TIME;
+    #[cfg(any(ossl110, libressl281))]
+    pub fn X509_CRL_get_issuer(x: *const X509_CRL) -> *mut X509_NAME;
+
+    #[cfg(ossl110)]
+    pub fn X509_get0_extensions(req: *const X509) -> *const stack_st_X509_EXTENSION;
+
+    pub fn X509_CRL_set_version(crl: *mut X509_CRL, version: c_long) -> c_int;
+}
+const_ptr_api! {
+    extern "C" {
+        pub fn X509_CRL_set_issuer_name(crl: *mut X509_CRL, name: #[const_ptr_if(ossl300)] X509_NAME) -> c_int;
+    }
+}
+extern "C" {
+    pub fn X509_CRL_sort(crl: *mut X509_CRL) -> c_int;
+
+    #[cfg(any(ossl110, libressl270))]
+    pub fn X509_CRL_up_ref(crl: *mut X509_CRL) -> c_int;
+    pub fn X509_CRL_add0_revoked(crl: *mut X509_CRL, rev: *mut X509_REVOKED) -> c_int;
+}
+cfg_if! {
+    if #[cfg(any(ossl110, libressl270))] {
+        extern "C" {
+            pub fn X509_CRL_set1_lastUpdate(crl: *mut X509_CRL, tm: *const ASN1_TIME) -> c_int;
+            pub fn X509_CRL_set1_nextUpdate(crl: *mut X509_CRL, tm: *const ASN1_TIME) -> c_int;
+        }
+    } else {
+        // libressl270 kept them, ossl110 "#define"s them to the variants above
+        extern "C" {
+            pub fn X509_CRL_set_lastUpdate(crl: *mut X509_CRL, tm: *const ASN1_TIME) -> c_int;
+            pub fn X509_CRL_set_nextUpdate(crl: *mut X509_CRL, tm: *const ASN1_TIME) -> c_int;
+        }
+    }
+}
+
+const_ptr_api! {
+    extern "C" {
+        pub fn X509_NAME_entry_count(n: #[const_ptr_if(any(ossl110, libressl280))] X509_NAME) -> c_int;
+        pub fn X509_NAME_get_index_by_NID(n: #[const_ptr_if(any(ossl300, libressl280))] X509_NAME, nid: c_int, last_pos: c_int) -> c_int;
+        pub fn X509_NAME_get_entry(n: #[const_ptr_if(any(ossl110, libressl280))] X509_NAME, loc: c_int) -> *mut X509_NAME_ENTRY;
+        pub fn X509_NAME_add_entry_by_NID(
+            x: *mut X509_NAME,
+            field: c_int,
+            ty: c_int,
+            bytes: #[const_ptr_if(any(ossl110, libressl280))] c_uchar,
+            len: c_int,
+            loc: c_int,
+            set: c_int,
+        ) -> c_int;
+        pub fn i2d_X509_NAME(n: #[const_ptr_if(ossl300)] X509_NAME, buf: *mut *mut u8) -> c_int;
+        pub fn X509_NAME_ENTRY_get_object(ne: #[const_ptr_if(any(ossl110, libressl280))] X509_NAME_ENTRY) -> *mut ASN1_OBJECT;
+        pub fn X509_NAME_ENTRY_get_data(ne: #[const_ptr_if(any(ossl110, libressl280))] X509_NAME_ENTRY) -> *mut ASN1_STRING;
+    }
+}
+extern "C" {
+    pub fn X509_NAME_add_entry_by_txt(
+        x: *mut X509_NAME,
+        field: *const c_char,
+        ty: c_int,
+        bytes: *const c_uchar,
+        len: c_int,
+        loc: c_int,
+        set: c_int,
+    ) -> c_int;
+    pub fn d2i_X509_NAME(
+        n: *mut *mut X509_NAME,
+        pp: *mut *const c_uchar,
+        length: c_long,
+    ) -> *mut X509_NAME;
+}
+
+// "raw" X509_EXTENSION related functions
+extern "C" {
+    // in X509
+    pub fn X509_delete_ext(x: *mut X509, loc: c_int) -> *mut X509_EXTENSION;
+    pub fn X509_add_ext(x: *mut X509, ext: *mut X509_EXTENSION, loc: c_int) -> c_int;
+    pub fn X509_add1_ext_i2d(
+        x: *mut X509,
+        nid: c_int,
+        value: *mut c_void,
+        crit: c_int,
+        flags: c_ulong,
+    ) -> c_int;
+    // in X509_CRL
+    pub fn X509_CRL_delete_ext(x: *mut X509_CRL, loc: c_int) -> *mut X509_EXTENSION;
+    pub fn X509_CRL_add_ext(x: *mut X509_CRL, ext: *mut X509_EXTENSION, loc: c_int) -> c_int;
+    pub fn X509_CRL_add1_ext_i2d(
+        x: *mut X509_CRL,
+        nid: c_int,
+        value: *mut c_void,
+        crit: c_int,
+        flags: c_ulong,
+    ) -> c_int;
+    // in X509_REVOKED
+    pub fn X509_REVOKED_delete_ext(x: *mut X509_REVOKED, loc: c_int) -> *mut X509_EXTENSION;
+    pub fn X509_REVOKED_add_ext(
+        x: *mut X509_REVOKED,
+        ext: *mut X509_EXTENSION,
+        loc: c_int,
+    ) -> c_int;
+    pub fn X509_REVOKED_add1_ext_i2d(
+        x: *mut X509_REVOKED,
+        nid: c_int,
+        value: *mut c_void,
+        crit: c_int,
+        flags: c_ulong,
+    ) -> c_int;
+    // X509_EXTENSION stack
+    // - these getters always used *const STACK
+    pub fn X509v3_get_ext_count(x: *const stack_st_X509_EXTENSION) -> c_int;
+    pub fn X509v3_get_ext_by_NID(
+        x: *const stack_st_X509_EXTENSION,
+        nid: c_int,
+        lastpos: c_int,
+    ) -> c_int;
+    pub fn X509v3_get_ext_by_critical(
+        x: *const stack_st_X509_EXTENSION,
+        crit: c_int,
+        lastpos: c_int,
+    ) -> c_int;
+    pub fn X509v3_get_ext(x: *const stack_st_X509_EXTENSION, loc: c_int) -> *mut X509_EXTENSION;
+    pub fn X509v3_delete_ext(x: *mut stack_st_X509_EXTENSION, loc: c_int) -> *mut X509_EXTENSION;
+    pub fn X509v3_add_ext(
+        x: *mut *mut stack_st_X509_EXTENSION,
+        ex: *mut X509_EXTENSION,
+        loc: c_int,
+    ) -> *mut stack_st_X509_EXTENSION;
+    // - X509V3_add1_i2d in x509v3.rs
+    // X509_EXTENSION itself
+    pub fn X509_EXTENSION_create_by_NID(
+        ex: *mut *mut X509_EXTENSION,
+        nid: c_int,
+        crit: c_int,
+        data: *mut ASN1_OCTET_STRING,
+    ) -> *mut X509_EXTENSION;
+    pub fn X509_EXTENSION_set_critical(ex: *mut X509_EXTENSION, crit: c_int) -> c_int;
+    pub fn X509_EXTENSION_set_data(ex: *mut X509_EXTENSION, data: *mut ASN1_OCTET_STRING) -> c_int;
+    pub fn X509_EXTENSION_get_object(ext: *mut X509_EXTENSION) -> *mut ASN1_OBJECT;
+    pub fn X509_EXTENSION_get_data(ext: *mut X509_EXTENSION) -> *mut ASN1_OCTET_STRING;
+}
+
+const_ptr_api! {
+    extern "C" {
+        pub fn i2d_X509_EXTENSION(ext: #[const_ptr_if(ossl300)] X509_EXTENSION, pp: *mut *mut c_uchar) -> c_int;
+    }
+}
+
+const_ptr_api! {
+    extern "C" {
+        // in X509
+        pub fn X509_get_ext_count(x: #[const_ptr_if(any(ossl110, libressl280))] X509) -> c_int;
+        pub fn X509_get_ext_by_NID(x: #[const_ptr_if(any(ossl110, libressl280))] X509, nid: c_int, lastpos: c_int) -> c_int;
+        pub fn X509_get_ext_by_OBJ(x: #[const_ptr_if(any(ossl110, libressl280))] X509, obj: #[const_ptr_if(any(ossl110, libressl280))] ASN1_OBJECT, lastpos: c_int) -> c_int;
+        pub fn X509_get_ext_by_critical(x: #[const_ptr_if(any(ossl110, libressl280))] X509, crit: c_int, lastpos: c_int) -> c_int;
+        pub fn X509_get_ext(x: #[const_ptr_if(any(ossl110, libressl280))] X509, loc: c_int) -> *mut X509_EXTENSION;
+        pub fn X509_get_ext_d2i(
+            x: #[const_ptr_if(any(ossl110, libressl280))] X509,
+            nid: c_int,
+            crit: *mut c_int,
+            idx: *mut c_int,
+        ) -> *mut c_void;
+        // in X509_CRL
+        pub fn X509_CRL_get_ext_count(x: #[const_ptr_if(any(ossl110, libressl280))] X509_CRL) -> c_int;
+        pub fn X509_CRL_get_ext_by_NID(x: #[const_ptr_if(any(ossl110, libressl280))] X509_CRL, nid: c_int, lastpos: c_int) -> c_int;
+        pub fn X509_CRL_get_ext_by_OBJ(x: #[const_ptr_if(any(ossl110, libressl280))] X509_CRL, obj: #[const_ptr_if(any(ossl110, libressl280))] ASN1_OBJECT, lastpos: c_int) -> c_int;
+        pub fn X509_CRL_get_ext_by_critical(x: #[const_ptr_if(any(ossl110, libressl280))] X509_CRL, crit: c_int, lastpos: c_int) -> c_int;
+        pub fn X509_CRL_get_ext(x: #[const_ptr_if(any(ossl110, libressl280))] X509_CRL, loc: c_int) -> *mut X509_EXTENSION;
+        pub fn X509_CRL_get_ext_d2i(
+            x: #[const_ptr_if(any(ossl110, libressl280))] X509_CRL,
+            nid: c_int,
+            crit: *mut c_int,
+            idx: *mut c_int,
+        ) -> *mut c_void;
+        // in X509_REVOKED
+        pub fn X509_REVOKED_get_ext_count(x: #[const_ptr_if(any(ossl110, libressl280))] X509_REVOKED) -> c_int;
+        pub fn X509_REVOKED_get_ext_by_NID(x: #[const_ptr_if(any(ossl110, libressl280))] X509_REVOKED, nid: c_int, lastpos: c_int) -> c_int;
+        pub fn X509_REVOKED_get_ext_by_OBJ(x: #[const_ptr_if(any(ossl110, libressl280))] X509_REVOKED, obj: #[const_ptr_if(any(ossl110, libressl280))] ASN1_OBJECT, lastpos: c_int) -> c_int;
+        pub fn X509_REVOKED_get_ext_by_critical(x: #[const_ptr_if(any(ossl110, libressl280))] X509_REVOKED, crit: c_int, lastpos: c_int) -> c_int;
+        pub fn X509_REVOKED_get_ext(x: #[const_ptr_if(any(ossl110, libressl280))] X509_REVOKED, loc: c_int) -> *mut X509_EXTENSION;
+        pub fn X509_REVOKED_get_ext_d2i(
+            x: #[const_ptr_if(any(ossl110, libressl280))] X509_REVOKED,
+            nid: c_int,
+            crit: *mut c_int,
+            idx: *mut c_int,
+        ) -> *mut c_void;
+        // X509_EXTENSION stack
+        pub fn X509v3_get_ext_by_OBJ(x: *const stack_st_X509_EXTENSION, obj: #[const_ptr_if(any(ossl110, libressl280))] ASN1_OBJECT, lastpos: c_int) -> c_int;
+        // X509_EXTENSION itself
+        pub fn X509_EXTENSION_create_by_OBJ(ex: *mut *mut X509_EXTENSION, obj: #[const_ptr_if(any(ossl110, libressl280))] ASN1_OBJECT, crit: c_int, data: *mut ASN1_OCTET_STRING) -> *mut X509_EXTENSION;
+        pub fn X509_EXTENSION_set_object(ex: *mut X509_EXTENSION, obj: #[const_ptr_if(any(ossl110, libressl280))] ASN1_OBJECT) -> c_int;
+        pub fn X509_EXTENSION_get_critical(ex: #[const_ptr_if(any(ossl110, libressl280))] X509_EXTENSION) -> c_int;
+    }
+}
+
+extern "C" {
+    pub fn X509_verify_cert(ctx: *mut X509_STORE_CTX) -> c_int;
+}
+
+const_ptr_api! {
+    extern "C" {
+        #[cfg(any(ossl110, libressl270))]
+        pub fn X509_STORE_get0_objects(ctx: #[const_ptr_if(ossl300)] X509_STORE) -> *mut stack_st_X509_OBJECT;
+    }
+}
+
+#[cfg(any(ossl110, libressl270))]
+extern "C" {
+    pub fn X509_OBJECT_get0_X509(x: *const X509_OBJECT) -> *mut X509;
+}
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl350))] {
+        extern "C" {
+            pub fn X509_OBJECT_free(a: *mut X509_OBJECT);
+        }
+    } else {
+        extern "C" {
+            pub fn X509_OBJECT_free_contents(a: *mut X509_OBJECT);
+        }
+    }
+}
+
+extern "C" {
+    pub fn X509_get_default_cert_file_env() -> *const c_char;
+    pub fn X509_get_default_cert_file() -> *const c_char;
+    pub fn X509_get_default_cert_dir_env() -> *const c_char;
+    pub fn X509_get_default_cert_dir() -> *const c_char;
+}
+
+extern "C" {
+    pub fn X509_cmp(a: *const X509, b: *const X509) -> c_int;
+    pub fn X509_issuer_and_serial_cmp(a: *const X509, b: *const X509) -> c_int;
+    pub fn X509_issuer_name_cmp(a: *const X509, b: *const X509) -> c_int;
+    pub fn X509_subject_name_cmp(a: *const X509, b: *const X509) -> c_int;
+    pub fn X509_CRL_cmp(a: *const X509_CRL, b: *const X509_CRL) -> c_int;
+    pub fn X509_CRL_match(a: *const X509_CRL, b: *const X509_CRL) -> c_int;
+}
+
+extern "C" {
+    pub fn X509_print(bio: *mut BIO, x509: *mut X509) -> c_int;
+    pub fn X509_REQ_print(bio: *mut BIO, req: *mut X509_REQ) -> c_int;
+}
+
+#[repr(C)]
+pub struct X509_PURPOSE {
+    pub purpose: c_int,
+    pub trust: c_int, // Default trust ID
+    pub flags: c_int,
+    pub check_purpose:
+        Option<unsafe extern "C" fn(*const X509_PURPOSE, *const X509, c_int) -> c_int>,
+    pub name: *mut c_char,
+    pub sname: *mut c_char,
+    pub usr_data: *mut c_void,
+}
+
+const_ptr_api! {
+    extern "C" {
+        pub fn X509_PURPOSE_get_by_sname(sname: #[const_ptr_if(any(ossl110, libressl280))] c_char) -> c_int;
+    }
+}
+extern "C" {
+    pub fn X509_PURPOSE_get0(idx: c_int) -> *mut X509_PURPOSE;
+}
+
+extern "C" {
+    pub fn X509_ATTRIBUTE_new() -> *mut X509_ATTRIBUTE;
+    pub fn X509_ATTRIBUTE_free(attr: *mut X509_ATTRIBUTE);
+    pub fn X509_ATTRIBUTE_create(
+        nid: c_int,
+        atrtype: c_int,
+        value: *mut c_void,
+    ) -> *mut X509_ATTRIBUTE;
+    pub fn X509_ATTRIBUTE_create_by_NID(
+        attr: *mut *mut X509_ATTRIBUTE,
+        nid: c_int,
+        atrtype: c_int,
+        data: *const c_void,
+        len: c_int,
+    ) -> *mut X509_ATTRIBUTE;
+    pub fn X509_ATTRIBUTE_create_by_OBJ(
+        attr: *mut *mut X509_ATTRIBUTE,
+        obj: *const ASN1_OBJECT,
+        atrtype: c_int,
+        data: *const c_void,
+        len: c_int,
+    ) -> *mut X509_ATTRIBUTE;
+    pub fn X509_ATTRIBUTE_create_by_txt(
+        attr: *mut *mut X509_ATTRIBUTE,
+        atrname: *const c_char,
+        atrtype: c_int,
+        bytes: *const c_uchar,
+        len: c_int,
+    ) -> *mut X509_ATTRIBUTE;
+    pub fn X509_ATTRIBUTE_set1_object(attr: *mut X509_ATTRIBUTE, obj: *const ASN1_OBJECT) -> c_int;
+    pub fn X509_ATTRIBUTE_set1_data(
+        attr: *mut X509_ATTRIBUTE,
+        attrtype: c_int,
+        data: *const c_void,
+        len: c_int,
+    ) -> c_int;
+    pub fn X509_ATTRIBUTE_get0_data(
+        attr: *mut X509_ATTRIBUTE,
+        idx: c_int,
+        atrtype: c_int,
+        data: *mut c_void,
+    ) -> *mut c_void;
+    pub fn X509_ATTRIBUTE_get0_object(attr: *mut X509_ATTRIBUTE) -> *mut ASN1_OBJECT;
+    pub fn X509_ATTRIBUTE_get0_type(attr: *mut X509_ATTRIBUTE, idx: c_int) -> *mut ASN1_TYPE;
+    pub fn d2i_X509_ATTRIBUTE(
+        a: *mut *mut X509_ATTRIBUTE,
+        pp: *mut *const c_uchar,
+        length: c_long,
+    ) -> *mut X509_ATTRIBUTE;
+}
+const_ptr_api! {
+    extern "C" {
+        pub fn X509_ATTRIBUTE_count(
+            attr: #[const_ptr_if(any(ossl110, libressl280))] X509_ATTRIBUTE // const since OpenSSL v1.1.0
+        ) -> c_int;
+        pub fn i2d_X509_ATTRIBUTE(x: #[const_ptr_if(ossl300)] X509_ATTRIBUTE, buf: *mut *mut u8) -> c_int;
+        pub fn X509_ATTRIBUTE_dup(x: #[const_ptr_if(ossl300)] X509_ATTRIBUTE) -> *mut X509_ATTRIBUTE;
+    }
+}
diff --git a/vendor/openssl-sys/src/handwritten/x509_vfy.rs b/vendor/openssl-sys/src/handwritten/x509_vfy.rs
new file mode 100644
index 0000000..a560e58
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/x509_vfy.rs
@@ -0,0 +1,138 @@
+use super::super::*;
+use libc::*;
+
+#[cfg(any(libressl, all(ossl102, not(ossl110))))]
+pub enum X509_VERIFY_PARAM_ID {}
+
+extern "C" {
+    #[cfg(ossl110)]
+    pub fn X509_LOOKUP_meth_free(method: *mut X509_LOOKUP_METHOD);
+}
+
+extern "C" {
+    pub fn X509_LOOKUP_free(ctx: *mut X509_LOOKUP);
+    pub fn X509_LOOKUP_hash_dir() -> *mut X509_LOOKUP_METHOD;
+    pub fn X509_LOOKUP_file() -> *mut X509_LOOKUP_METHOD;
+    pub fn X509_LOOKUP_ctrl(
+        ctx: *mut X509_LOOKUP,
+        cmd: c_int,
+        argc: *const c_char,
+        argl: c_long,
+        ret: *mut *mut c_char,
+    ) -> c_int;
+    pub fn X509_load_cert_file(ctx: *mut X509_LOOKUP, file: *const c_char, _type: c_int) -> c_int;
+    pub fn X509_load_crl_file(ctx: *mut X509_LOOKUP, file: *const c_char, _type: c_int) -> c_int;
+}
+
+extern "C" {
+    pub fn X509_STORE_new() -> *mut X509_STORE;
+    pub fn X509_STORE_free(store: *mut X509_STORE);
+
+    pub fn X509_STORE_CTX_new() -> *mut X509_STORE_CTX;
+
+    pub fn X509_STORE_CTX_free(ctx: *mut X509_STORE_CTX);
+    pub fn X509_STORE_CTX_init(
+        ctx: *mut X509_STORE_CTX,
+        store: *mut X509_STORE,
+        x509: *mut X509,
+        chain: *mut stack_st_X509,
+    ) -> c_int;
+    pub fn X509_STORE_CTX_cleanup(ctx: *mut X509_STORE_CTX);
+
+    pub fn X509_STORE_add_cert(store: *mut X509_STORE, x: *mut X509) -> c_int;
+
+    pub fn X509_STORE_add_lookup(
+        store: *mut X509_STORE,
+        meth: *mut X509_LOOKUP_METHOD,
+    ) -> *mut X509_LOOKUP;
+
+    pub fn X509_STORE_set_default_paths(store: *mut X509_STORE) -> c_int;
+    pub fn X509_STORE_set_flags(store: *mut X509_STORE, flags: c_ulong) -> c_int;
+    pub fn X509_STORE_set_purpose(ctx: *mut X509_STORE, purpose: c_int) -> c_int;
+    pub fn X509_STORE_set_trust(ctx: *mut X509_STORE, trust: c_int) -> c_int;
+
+}
+
+const_ptr_api! {
+    extern "C" {
+        pub fn X509_STORE_set1_param(store: *mut X509_STORE, pm: #[const_ptr_if(ossl300)] X509_VERIFY_PARAM) -> c_int;
+    }
+}
+
+const_ptr_api! {
+    extern "C" {
+        pub fn X509_STORE_CTX_get_ex_data(ctx: #[const_ptr_if(ossl300)] X509_STORE_CTX, idx: c_int) -> *mut c_void;
+        pub fn X509_STORE_CTX_get_error(ctx: #[const_ptr_if(ossl300)] X509_STORE_CTX) -> c_int;
+        pub fn X509_STORE_CTX_get_error_depth(ctx: #[const_ptr_if(ossl300)] X509_STORE_CTX) -> c_int;
+        pub fn X509_STORE_CTX_get_current_cert(ctx: #[const_ptr_if(ossl300)] X509_STORE_CTX) -> *mut X509;
+    }
+}
+extern "C" {
+    pub fn X509_STORE_CTX_set_error(ctx: *mut X509_STORE_CTX, error: c_int);
+}
+cfg_if! {
+    if #[cfg(any(ossl110, libressl350))] {
+        const_ptr_api! {
+            extern "C" {
+                pub fn X509_STORE_CTX_get0_chain(ctx: #[const_ptr_if(ossl300)] X509_STORE_CTX) -> *mut stack_st_X509;
+            }
+        }
+    } else {
+        extern "C" {
+            pub fn X509_STORE_CTX_get_chain(ctx: *mut X509_STORE_CTX) -> *mut stack_st_X509;
+        }
+    }
+}
+
+extern "C" {
+    #[cfg(any(ossl102, libressl261))]
+    pub fn X509_VERIFY_PARAM_new() -> *mut X509_VERIFY_PARAM;
+    #[cfg(any(ossl102, libressl261))]
+    pub fn X509_VERIFY_PARAM_free(param: *mut X509_VERIFY_PARAM);
+
+    #[cfg(any(ossl102, libressl261))]
+    pub fn X509_VERIFY_PARAM_set_flags(param: *mut X509_VERIFY_PARAM, flags: c_ulong) -> c_int;
+    #[cfg(any(ossl102, libressl261))]
+    pub fn X509_VERIFY_PARAM_clear_flags(param: *mut X509_VERIFY_PARAM, flags: c_ulong) -> c_int;
+
+    #[cfg(any(ossl102, libressl261))]
+    pub fn X509_VERIFY_PARAM_set_time(param: *mut X509_VERIFY_PARAM, t: time_t);
+
+    #[cfg(any(ossl102, libressl261))]
+    pub fn X509_VERIFY_PARAM_set_depth(param: *mut X509_VERIFY_PARAM, depth: c_int);
+}
+const_ptr_api! {
+    extern "C" {
+        #[cfg(any(ossl102, libressl261))]
+        pub fn X509_VERIFY_PARAM_get_flags(param: #[const_ptr_if(ossl300)] X509_VERIFY_PARAM) -> c_ulong;
+    }
+}
+
+extern "C" {
+    #[cfg(any(ossl102, libressl261))]
+    pub fn X509_VERIFY_PARAM_set1_host(
+        param: *mut X509_VERIFY_PARAM,
+        name: *const c_char,
+        namelen: size_t,
+    ) -> c_int;
+    #[cfg(any(ossl102, libressl261))]
+    pub fn X509_VERIFY_PARAM_set_hostflags(param: *mut X509_VERIFY_PARAM, flags: c_uint);
+    #[cfg(any(ossl102, libressl261))]
+    pub fn X509_VERIFY_PARAM_set1_email(
+        param: *mut X509_VERIFY_PARAM,
+        email: *const c_char,
+        emaillen: size_t,
+    ) -> c_int;
+    #[cfg(any(ossl102, libressl261))]
+    pub fn X509_VERIFY_PARAM_set1_ip(
+        param: *mut X509_VERIFY_PARAM,
+        ip: *const c_uchar,
+        iplen: size_t,
+    ) -> c_int;
+    #[cfg(ossl110)]
+    pub fn X509_VERIFY_PARAM_set_auth_level(param: *mut X509_VERIFY_PARAM, lvl: c_int);
+    #[cfg(ossl110)]
+    pub fn X509_VERIFY_PARAM_get_auth_level(param: *const X509_VERIFY_PARAM) -> c_int;
+    #[cfg(ossl102)]
+    pub fn X509_VERIFY_PARAM_set_purpose(param: *mut X509_VERIFY_PARAM, purpose: c_int) -> c_int;
+}
diff --git a/vendor/openssl-sys/src/handwritten/x509v3.rs b/vendor/openssl-sys/src/handwritten/x509v3.rs
new file mode 100644
index 0000000..2ee0452
--- /dev/null
+++ b/vendor/openssl-sys/src/handwritten/x509v3.rs
@@ -0,0 +1,147 @@
+use super::super::*;
+use libc::*;
+
+pub enum CONF_METHOD {}
+
+extern "C" {
+    pub fn GENERAL_NAME_new() -> *mut GENERAL_NAME;
+    pub fn GENERAL_NAME_free(name: *mut GENERAL_NAME);
+    pub fn GENERAL_NAME_set0_othername(
+        gen: *mut GENERAL_NAME,
+        oid: *mut ASN1_OBJECT,
+        value: *mut ASN1_TYPE,
+    ) -> c_int;
+}
+
+#[repr(C)]
+pub struct ACCESS_DESCRIPTION {
+    pub method: *mut ASN1_OBJECT,
+    pub location: *mut GENERAL_NAME,
+}
+
+stack!(stack_st_ACCESS_DESCRIPTION);
+
+extern "C" {
+    pub fn ACCESS_DESCRIPTION_free(ad: *mut ACCESS_DESCRIPTION);
+}
+
+#[repr(C)]
+pub struct AUTHORITY_KEYID {
+    pub keyid: *mut ASN1_OCTET_STRING,
+    pub issuer: *mut stack_st_GENERAL_NAME,
+    pub serial: *mut ASN1_INTEGER,
+}
+
+extern "C" {
+    pub fn AUTHORITY_KEYID_free(akid: *mut AUTHORITY_KEYID);
+}
+
+const_ptr_api! {
+    extern "C" {
+        pub fn X509V3_EXT_nconf_nid(
+            conf: *mut CONF,
+            ctx: *mut X509V3_CTX,
+            ext_nid: c_int,
+            value: #[const_ptr_if(any(ossl110, libressl280))] c_char,
+        ) -> *mut X509_EXTENSION;
+        pub fn X509V3_EXT_nconf(
+            conf: *mut CONF,
+            ctx: *mut X509V3_CTX,
+            name: #[const_ptr_if(any(ossl110, libressl280))] c_char,
+            value: #[const_ptr_if(any(ossl110, libressl280))] c_char,
+        ) -> *mut X509_EXTENSION;
+    }
+}
+
+extern "C" {
+    pub fn X509_check_issued(issuer: *mut X509, subject: *mut X509) -> c_int;
+    pub fn X509_verify(req: *mut X509, pkey: *mut EVP_PKEY) -> c_int;
+
+    pub fn X509V3_set_nconf(ctx: *mut X509V3_CTX, conf: *mut CONF);
+
+    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 X509_get1_ocsp(x: *mut X509) -> *mut stack_st_OPENSSL_STRING;
+}
+
+const_ptr_api! {
+    extern "C" {
+        pub fn X509V3_get_d2i(
+            x: #[const_ptr_if(any(ossl110, libressl280))] stack_st_X509_EXTENSION,
+            nid: c_int,
+            crit: *mut c_int,
+            idx: *mut c_int,
+        ) -> *mut c_void;
+        pub fn X509V3_extensions_print(out: *mut BIO, title: #[const_ptr_if(any(ossl110, libressl280))] c_char, exts: #[const_ptr_if(any(ossl110, libressl280))] stack_st_X509_EXTENSION, flag: c_ulong, indent: c_int) -> c_int;
+    }
+}
+
+extern "C" {
+    pub fn X509V3_EXT_add_alias(nid_to: c_int, nid_from: c_int) -> c_int;
+    pub fn X509V3_EXT_d2i(ext: *mut X509_EXTENSION) -> *mut c_void;
+    pub fn X509V3_EXT_i2d(ext_nid: c_int, crit: c_int, ext: *mut c_void) -> *mut X509_EXTENSION;
+    pub fn X509V3_add1_i2d(
+        x: *mut *mut stack_st_X509_EXTENSION,
+        nid: c_int,
+        value: *mut c_void,
+        crit: c_int,
+        flags: c_ulong,
+    ) -> c_int;
+    pub fn X509V3_EXT_print(
+        out: *mut BIO,
+        ext: *mut X509_EXTENSION,
+        flag: c_ulong,
+        indent: c_int,
+    ) -> c_int;
+
+    #[cfg(ossl110)]
+    pub fn X509_get_pathlen(x: *mut X509) -> c_long;
+    #[cfg(ossl110)]
+    pub fn X509_get_extension_flags(x: *mut X509) -> u32;
+    #[cfg(ossl110)]
+    pub fn X509_get_key_usage(x: *mut X509) -> u32;
+    #[cfg(ossl110)]
+    pub fn X509_get_extended_key_usage(x: *mut X509) -> u32;
+    #[cfg(ossl110)]
+    pub fn X509_get0_subject_key_id(x: *mut X509) -> *const ASN1_OCTET_STRING;
+    #[cfg(ossl110)]
+    pub fn X509_get0_authority_key_id(x: *mut X509) -> *const ASN1_OCTET_STRING;
+    #[cfg(ossl111d)]
+    pub fn X509_get0_authority_issuer(x: *mut X509) -> *const stack_st_GENERAL_NAME;
+    #[cfg(ossl111d)]
+    pub fn X509_get0_authority_serial(x: *mut X509) -> *const ASN1_INTEGER;
+}
+
+#[repr(C)]
+pub struct DIST_POINT_NAME {
+    pub type_: c_int,
+    pub name: DIST_POINT_NAME_st_anon_union,
+    pub dpname: *mut X509_NAME,
+}
+
+#[repr(C)]
+pub union DIST_POINT_NAME_st_anon_union {
+    pub fullname: *mut stack_st_GENERAL_NAME,
+    pub relativename: *mut stack_st_X509_NAME_ENTRY,
+}
+
+#[repr(C)]
+pub struct DIST_POINT {
+    pub distpoint: *mut DIST_POINT_NAME,
+    pub reasons: *mut ASN1_BIT_STRING,
+    pub CRLissuer: *mut stack_st_GENERAL_NAME,
+    pub dp_reasons: c_int,
+}
+stack!(stack_st_DIST_POINT);
+
+extern "C" {
+    pub fn DIST_POINT_free(dist_point: *mut DIST_POINT);
+    pub fn DIST_POINT_NAME_free(dist_point: *mut DIST_POINT_NAME);
+}
diff --git a/vendor/openssl-sys/src/lib.rs b/vendor/openssl-sys/src/lib.rs
new file mode 100644
index 0000000..784b763
--- /dev/null
+++ b/vendor/openssl-sys/src/lib.rs
@@ -0,0 +1,209 @@
+#![allow(
+    clippy::missing_safety_doc,
+    dead_code,
+    non_camel_case_types,
+    non_snake_case,
+    non_upper_case_globals,
+    unused_imports
+)]
+#![cfg_attr(feature = "unstable_boringssl", allow(ambiguous_glob_reexports))]
+#![doc(html_root_url = "https://docs.rs/openssl-sys/0.9")]
+#![recursion_limit = "128"] // configure fixed limit across all rust versions
+
+extern crate libc;
+pub use libc::*;
+
+#[cfg(feature = "unstable_boringssl")]
+extern crate bssl_sys;
+#[cfg(feature = "unstable_boringssl")]
+pub use bssl_sys::*;
+
+#[cfg(all(boringssl, not(feature = "unstable_boringssl")))]
+#[path = "."]
+mod boringssl {
+    include!(concat!(env!("OUT_DIR"), "/bindgen.rs"));
+
+    pub fn init() {
+        unsafe {
+            CRYPTO_library_init();
+        }
+    }
+}
+#[cfg(all(boringssl, not(feature = "unstable_boringssl")))]
+pub use boringssl::*;
+
+#[cfg(openssl)]
+#[path = "."]
+mod openssl {
+    use libc::*;
+
+    #[cfg(feature = "bindgen")]
+    include!(concat!(env!("OUT_DIR"), "/bindgen.rs"));
+
+    pub use self::aes::*;
+    pub use self::asn1::*;
+    pub use self::bio::*;
+    pub use self::bn::*;
+    pub use self::cms::*;
+    pub use self::crypto::*;
+    pub use self::dtls1::*;
+    pub use self::ec::*;
+    pub use self::err::*;
+    pub use self::evp::*;
+    #[cfg(not(feature = "bindgen"))]
+    pub use self::handwritten::*;
+    pub use self::obj_mac::*;
+    pub use self::ocsp::*;
+    pub use self::pem::*;
+    pub use self::pkcs7::*;
+    pub use self::rsa::*;
+    pub use self::sha::*;
+    pub use self::srtp::*;
+    pub use self::ssl::*;
+    pub use self::ssl3::*;
+    pub use self::tls1::*;
+    pub use self::types::*;
+    pub use self::x509::*;
+    pub use self::x509_vfy::*;
+    pub use self::x509v3::*;
+
+    #[macro_use]
+    mod macros;
+
+    mod aes;
+    mod asn1;
+    mod bio;
+    mod bn;
+    mod cms;
+    mod crypto;
+    mod dtls1;
+    mod ec;
+    mod err;
+    mod evp;
+    #[cfg(not(feature = "bindgen"))]
+    mod handwritten;
+    mod obj_mac;
+    mod ocsp;
+    mod pem;
+    mod pkcs7;
+    mod rsa;
+    mod sha;
+    mod srtp;
+    mod ssl;
+    mod ssl3;
+    mod tls1;
+    mod types;
+    mod x509;
+    mod x509_vfy;
+    mod x509v3;
+
+    use std::sync::Once;
+    // explicitly initialize to work around https://github.com/openssl/openssl/issues/3505
+    static INIT: Once = Once::new();
+
+    // FIXME remove
+    pub type PasswordCallback = unsafe extern "C" fn(
+        buf: *mut c_char,
+        size: c_int,
+        rwflag: c_int,
+        user_data: *mut c_void,
+    ) -> c_int;
+
+    #[cfg(ossl110)]
+    pub fn init() {
+        use std::ptr;
+
+        #[cfg(not(ossl111b))]
+        let init_options = OPENSSL_INIT_LOAD_SSL_STRINGS;
+        #[cfg(ossl111b)]
+        let init_options = OPENSSL_INIT_LOAD_SSL_STRINGS | OPENSSL_INIT_NO_ATEXIT;
+
+        INIT.call_once(|| unsafe {
+            OPENSSL_init_ssl(init_options, ptr::null_mut());
+        })
+    }
+
+    #[cfg(not(ossl110))]
+    pub fn init() {
+        use std::io::{self, Write};
+        use std::mem;
+        use std::process;
+        use std::sync::{Mutex, MutexGuard};
+
+        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, ()>>>;
+
+        unsafe extern "C" fn locking_function(
+            mode: c_int,
+            n: c_int,
+            _file: *const c_char,
+            _line: c_int,
+        ) {
+            let mutex = &(*MUTEXES)[n as usize];
+
+            if mode & CRYPTO_LOCK != 0 {
+                (*GUARDS)[n as usize] = Some(mutex.lock().unwrap());
+            } else {
+                if let None = (*GUARDS)[n as usize].take() {
+                    let _ = writeln!(
+                        io::stderr(),
+                        "BUG: rust-openssl lock {} already unlocked, aborting",
+                        n
+                    );
+                    process::abort();
+                }
+            }
+        }
+
+        cfg_if! {
+            if #[cfg(unix)] {
+                fn set_id_callback() {
+                    unsafe extern "C" fn thread_id() -> c_ulong {
+                        ::libc::pthread_self() as c_ulong
+                    }
+
+                    unsafe {
+                        CRYPTO_set_id_callback__fixed_rust(Some(thread_id));
+                    }
+                }
+            } else {
+                fn set_id_callback() {}
+            }
+        }
+
+        INIT.call_once(|| unsafe {
+            SSL_library_init();
+            SSL_load_error_strings();
+            OPENSSL_add_all_algorithms_noconf();
+
+            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__fixed_rust(Some(locking_function));
+            set_id_callback();
+        })
+    }
+
+    /// Disable explicit initialization of the openssl libs.
+    ///
+    /// This is only appropriate to use if the openssl crate is being consumed by an application
+    /// that will be performing the initialization explicitly.
+    ///
+    /// # Safety
+    ///
+    /// In some versions of openssl, skipping initialization will fall back to the default procedure
+    /// while other will cause difficult to debug errors so care must be taken when calling this.
+    pub unsafe fn assume_init() {
+        INIT.call_once(|| {});
+    }
+}
+#[cfg(openssl)]
+pub use openssl::*;
diff --git a/vendor/openssl-sys/src/macros.rs b/vendor/openssl-sys/src/macros.rs
new file mode 100644
index 0000000..96523db
--- /dev/null
+++ b/vendor/openssl-sys/src/macros.rs
@@ -0,0 +1,280 @@
+#![allow(unused_macros)]
+
+// vendored from the cfg-if crate to avoid breaking ctest
+macro_rules! cfg_if {
+    // match if/else chains with a final `else`
+    ($(
+        if #[cfg($($meta:meta),*)] { $($it:item)* }
+    ) else * else {
+        $($it2:item)*
+    }) => {
+        cfg_if! {
+            @__items
+            () ;
+            $( ( ($($meta),*) ($($it)*) ), )*
+            ( () ($($it2)*) ),
+        }
+    };
+
+    // match if/else chains lacking a final `else`
+    (
+        if #[cfg($($i_met:meta),*)] { $($i_it:item)* }
+        $(
+            else if #[cfg($($e_met:meta),*)] { $($e_it:item)* }
+        )*
+    ) => {
+        cfg_if! {
+            @__items
+            () ;
+            ( ($($i_met),*) ($($i_it)*) ),
+            $( ( ($($e_met),*) ($($e_it)*) ), )*
+            ( () () ),
+        }
+    };
+
+    // Internal and recursive macro to emit all the items
+    //
+    // Collects all the negated cfgs in a list at the beginning and after the
+    // semicolon is all the remaining items
+    (@__items ($($not:meta,)*) ; ) => {};
+    (@__items ($($not:meta,)*) ; ( ($($m:meta),*) ($($it:item)*) ), $($rest:tt)*) => {
+        // Emit all items within one block, applying an appropriate #[cfg]. The
+        // #[cfg] will require all `$m` matchers specified and must also negate
+        // all previous matchers.
+        cfg_if! { @__apply cfg(all($($m,)* not(any($($not),*)))), $($it)* }
+
+        // Recurse to emit all other items in `$rest`, and when we do so add all
+        // our `$m` matchers to the list of `$not` matchers as future emissions
+        // will have to negate everything we just matched as well.
+        cfg_if! { @__items ($($not,)* $($m,)*) ; $($rest)* }
+    };
+
+    // Internal macro to Apply a cfg attribute to a list of items
+    (@__apply $m:meta, $($it:item)*) => {
+        $(#[$m] $it)*
+    };
+}
+
+macro_rules! stack {
+    ($t:ident) => {
+        cfg_if! {
+            if #[cfg(ossl110)] {
+                pub enum $t {}
+            } else {
+                #[repr(C)]
+                pub struct $t {
+                    pub stack: $crate::_STACK,
+                }
+            }
+        }
+    };
+}
+
+// openssl changes `*mut` to `*const` in certain parameters in certain versions;
+// in C this is ABI and (mostly) API compatible.
+//
+// We need to handle this explicitly, and this macro helps annotate which
+// parameter got converted in which version.
+//
+// Input is:
+//    extern "C" {
+//        #[attributes...]
+//        pub fn name(args) -> rettype; // `-> rettype` optional
+//        // more functions...
+//    }
+//
+// This macro replaces `#[const_ptr_if(...)]` in types with `*const` or `*mut`
+// (depending on the inner cfg flags)
+//
+// Walks through all argument and return types, but only finds inner types of
+// `*const` and `*mut`; doesn't walk arrays or generics.
+//
+// NOTE: can't abstract `pub` as `$fn_vis:vis`, as ctest macro handling doesn't
+// support it (old syntax crate). But we really only need `pub` anyway.
+//
+// NOTE: ctest seams to simply ignore macros it can't expand (whatever the
+// reason)
+macro_rules! const_ptr_api {
+    // ----------------------------------------------------------------
+    // (partialarg): partial argument, waiting for "final" argument type
+    // MAGIC PART 1: hande conditional const ptr in argument type
+    ( (partialarg)
+        { $(#[$fn_attr:meta])* pub fn $fn_name:ident }
+        $args_packed:tt
+        [ $($part_arg:tt)* ]
+        [ #[const_ptr_if( $($cfg:tt)* )] $($arg_rem:tt)* ]
+        $ret_packed:tt
+    ) => {
+        const_ptr_api!( (partialarg) { #[cfg($($cfg)*)]      $(#[$fn_attr])* pub fn $fn_name } $args_packed [ $($part_arg)* *const ] [ $($arg_rem)* ] $ret_packed );
+        const_ptr_api!( (partialarg) { #[cfg(not($($cfg)*))] $(#[$fn_attr])* pub fn $fn_name } $args_packed [ $($part_arg)* *mut   ] [ $($arg_rem)* ] $ret_packed );
+    };
+    // continue partial argument with `*mut` pointer (might need special const handling in inner type)
+    ( (partialarg)
+        $def_packed:tt
+        $args_packed:tt
+        [ $($part_arg:tt)* ]
+        [ *mut $($arg_rem:tt)* ]
+        $ret_packed:tt
+    ) => {
+        const_ptr_api!( (partialarg) $def_packed $args_packed [ $($part_arg)* *mut ] [ $($arg_rem)* ] $ret_packed );
+    };
+    // continue partial argument with `*const` pointer (might need special const handling in inner type)
+    ( (partialarg)
+        $def_packed:tt
+        $args_packed:tt
+        [ $($part_arg:tt)* ]
+        [ *const $($arg_rem:tt)* ]
+        $ret_packed:tt
+    ) => {
+        const_ptr_api!( (partialarg) $def_packed $args_packed [ $($part_arg)* *const ] [ $($arg_rem)* ] $ret_packed );
+    };
+    // finish partial argument with trailing comma
+    ( (partialarg)
+        $def_packed:tt
+        { $($args_tt:tt)* }
+        [ $($part_arg:tt)* ]
+        [ $arg_ty:ty, $($arg_rem:tt)* ]
+        $ret_packed:tt
+    ) => {
+        const_ptr_api!( (parseargs) $def_packed { $($args_tt)* { $($part_arg)* $arg_ty } } [ $($arg_rem)* ] $ret_packed );
+    };
+    // finish final partial argument (no trailing comma)
+    ( (partialarg)
+        $def_packed:tt
+        { $($args_tt:tt)* }
+        [ $($part_arg:tt)* ]
+        [ $arg_ty:ty ]
+        $ret_packed:tt
+    ) => {
+        const_ptr_api!( (parseargs) $def_packed { $($args_tt)* { $($part_arg)* $arg_ty } } [ ] $ret_packed );
+    };
+
+    // ----------------------------------------------------------------
+    // (parseargs): parsing arguments
+    // start next argument
+    ( (parseargs)
+        $def_packed:tt
+        $args_packed:tt
+        [ $arg_name:ident : $($arg_rem:tt)* ]
+        $ret_packed:tt
+    ) => {
+        const_ptr_api!( (partialarg) $def_packed $args_packed [ $arg_name: ] [ $($arg_rem)* ] $ret_packed );
+    };
+    // end of arguments, there is a return type; start parsing it
+    ( (parseargs)
+        $def_packed:tt
+        $args_packed:tt
+        [ ]
+        [ -> $($rem:tt)* ]
+    ) => {
+        const_ptr_api!( (partialret) $def_packed $args_packed [] [ $($rem)* ] );
+    };
+    // end of arguments, no return type
+    ( (parseargs)
+        $def_packed:tt
+        $args_packed:tt
+        [ ]
+        [ ]
+    ) => {
+        const_ptr_api!( (generate) $def_packed $args_packed { () } );
+    };
+
+    // ----------------------------------------------------------------
+    // (partialret): have partial return type, waiting for final return type
+    // MAGIC PART 2: hande conditional const ptr in return type
+    ( (partialret)
+        { $(#[$fn_attr:meta])* pub fn $fn_name:ident }
+        $args_packed:tt
+        [ $($part_ret:tt)* ]
+        [ #[const_ptr_if( $($cfg:tt)* )] $($rem:tt)* ]
+    ) => {
+        const_ptr_api!( (partialret) { #[cfg($($cfg)*)]      $(#[$fn_attr])* pub fn $fn_name } $args_packed [ $($part_ret)* *const ] [ $($rem)* ] );
+        const_ptr_api!( (partialret) { #[cfg(not($($cfg)*))] $(#[$fn_attr])* pub fn $fn_name } $args_packed [ $($part_ret)* *mut   ] [ $($rem)* ] );
+    };
+    // `* mut` part in return type; continue parsing to find inner conditional const ptr
+    ( (partialret)
+        $def_packed:tt
+        $args_packed:tt
+        [ $($part_ret:tt)* ]
+        [ *mut $($rem:tt)* ]
+    ) => {
+        const_ptr_api!( (partialret) $def_packed $args_packed [ $($part_ret)* *mut ] [ $($rem)* ] );
+    };
+    // `* const` part in return type; continue parsing to find inner conditional const ptr
+    ( (partialret)
+        $def_packed:tt
+        $args_packed:tt
+        [ $($part_ret:tt)* ]
+        [ *const $($rem:tt)* ]
+    ) => {
+        const_ptr_api!( (partialret) $def_packed $args_packed [ $($part_ret)* *const ] [ $($rem)* ] );
+    };
+    // final part of return type
+    ( (partialret)
+        $def_packed:tt
+        $args_packed:tt
+        [ $($part_ret:tt)* ]
+        [ $ret_ty:ty ]
+    ) => {
+        const_ptr_api!( (generate) $def_packed $args_packed { $($part_ret)* $ret_ty } );
+    };
+
+    // ----------------------------------------------------------------
+    // generate
+    ( (generate)
+        { $(#[$fn_attr:meta])* pub fn $fn_name:ident }
+        { $({ $arg_name:ident: $($arg_ty:tt)* })* }
+        { $ret_ty:ty }
+    ) => {
+        extern "C" {
+            $(#[$fn_attr])*
+            pub fn $fn_name( $(
+                $arg_name: $($arg_ty)*
+            ),* ) -> $ret_ty;
+        }
+    };
+
+    // ----------------------------------------------------------------
+    // (fn): gather tokens for return type until ";"
+    // found end; start parsing current function, and parse remaining functions
+    ( (fn)
+        $def_packed:tt
+        $arg_tts_packed:tt
+        $ret_packed:tt
+        [ ; $($rem:tt)* ]
+    ) => {
+        const_ptr_api!( (parseargs) $def_packed {} $arg_tts_packed $ret_packed );
+        const_ptr_api!( (extern) [ $($rem)* ] );
+    };
+    // not ";" - all other tokens are part of the return type.
+    // don't expand return type yet; otherwise we'd have to remember in which branch `rem` needs
+    // to be used to parse further functions.
+    ( (fn)
+        $def_packed:tt
+        $arg_tts_packed:tt
+        [ $($ret_tt:tt)* ]
+        [ $tt:tt $($rem:tt)* ]
+    ) => {
+        const_ptr_api!( (fn) $def_packed $arg_tts_packed [ $($ret_tt)* $tt ] [ $($rem)* ] );
+    };
+
+    // ----------------------------------------------------------------
+    // (extern): in extern block, find next function
+    // try to split into functions as fast as possible to reduce recursion depth
+    ( (extern) [
+        $(#[$fn_attr:meta])*
+        pub fn $fn_name:ident( $($arg_rem:tt)* ) $($rem:tt)*
+    ] ) => {
+        const_ptr_api!( (fn)
+            { $(#[$fn_attr])* pub fn $fn_name } [ $($arg_rem)* ] [] [ $($rem)* ]
+        );
+    };
+    // end of extern block
+    ( (extern) [] ) => {};
+
+    // ----------------------------------------------------------------
+    // macro start; find extern block
+    ( extern "C" { $($rem:tt)* } ) => {
+        const_ptr_api!( (extern) [ $($rem)* ] );
+    };
+}
diff --git a/vendor/openssl-sys/src/obj_mac.rs b/vendor/openssl-sys/src/obj_mac.rs
new file mode 100644
index 0000000..6ae4883
--- /dev/null
+++ b/vendor/openssl-sys/src/obj_mac.rs
@@ -0,0 +1,986 @@
+use libc::*;
+
+pub const NID_undef: c_int = 0;
+pub const NID_itu_t: c_int = 645;
+pub const NID_ccitt: c_int = 404;
+pub const NID_iso: c_int = 181;
+pub const NID_joint_iso_itu_t: c_int = 646;
+pub const NID_joint_iso_ccitt: c_int = 393;
+pub const NID_member_body: c_int = 182;
+pub const NID_identified_organization: c_int = 676;
+pub const NID_hmac_md5: c_int = 780;
+pub const NID_hmac_sha1: c_int = 781;
+pub const NID_certicom_arc: c_int = 677;
+pub const NID_international_organizations: c_int = 647;
+pub const NID_wap: c_int = 678;
+pub const NID_wap_wsg: c_int = 679;
+pub const NID_selected_attribute_types: c_int = 394;
+pub const NID_clearance: c_int = 395;
+pub const NID_ISO_US: c_int = 183;
+pub const NID_X9_57: c_int = 184;
+pub const NID_X9cm: c_int = 185;
+pub const NID_dsa: c_int = 116;
+pub const NID_dsaWithSHA1: c_int = 113;
+pub const NID_ansi_X9_62: c_int = 405;
+pub const NID_X9_62_prime_field: c_int = 406;
+pub const NID_X9_62_characteristic_two_field: c_int = 407;
+pub const NID_X9_62_id_characteristic_two_basis: c_int = 680;
+pub const NID_X9_62_onBasis: c_int = 681;
+pub const NID_X9_62_tpBasis: c_int = 682;
+pub const NID_X9_62_ppBasis: c_int = 683;
+pub const NID_X9_62_id_ecPublicKey: c_int = 408;
+pub const NID_X9_62_c2pnb163v1: c_int = 684;
+pub const NID_X9_62_c2pnb163v2: c_int = 685;
+pub const NID_X9_62_c2pnb163v3: c_int = 686;
+pub const NID_X9_62_c2pnb176v1: c_int = 687;
+pub const NID_X9_62_c2tnb191v1: c_int = 688;
+pub const NID_X9_62_c2tnb191v2: c_int = 689;
+pub const NID_X9_62_c2tnb191v3: c_int = 690;
+pub const NID_X9_62_c2onb191v4: c_int = 691;
+pub const NID_X9_62_c2onb191v5: c_int = 692;
+pub const NID_X9_62_c2pnb208w1: c_int = 693;
+pub const NID_X9_62_c2tnb239v1: c_int = 694;
+pub const NID_X9_62_c2tnb239v2: c_int = 695;
+pub const NID_X9_62_c2tnb239v3: c_int = 696;
+pub const NID_X9_62_c2onb239v4: c_int = 697;
+pub const NID_X9_62_c2onb239v5: c_int = 698;
+pub const NID_X9_62_c2pnb272w1: c_int = 699;
+pub const NID_X9_62_c2pnb304w1: c_int = 700;
+pub const NID_X9_62_c2tnb359v1: c_int = 701;
+pub const NID_X9_62_c2pnb368w1: c_int = 702;
+pub const NID_X9_62_c2tnb431r1: c_int = 703;
+pub const NID_X9_62_prime192v1: c_int = 409;
+pub const NID_X9_62_prime192v2: c_int = 410;
+pub const NID_X9_62_prime192v3: c_int = 411;
+pub const NID_X9_62_prime239v1: c_int = 412;
+pub const NID_X9_62_prime239v2: c_int = 413;
+pub const NID_X9_62_prime239v3: c_int = 414;
+pub const NID_X9_62_prime256v1: c_int = 415;
+pub const NID_ecdsa_with_SHA1: c_int = 416;
+pub const NID_ecdsa_with_Recommended: c_int = 791;
+pub const NID_ecdsa_with_Specified: c_int = 792;
+pub const NID_ecdsa_with_SHA224: c_int = 793;
+pub const NID_ecdsa_with_SHA256: c_int = 794;
+pub const NID_ecdsa_with_SHA384: c_int = 795;
+pub const NID_ecdsa_with_SHA512: c_int = 796;
+pub const NID_secp112r1: c_int = 704;
+pub const NID_secp112r2: c_int = 705;
+pub const NID_secp128r1: c_int = 706;
+pub const NID_secp128r2: c_int = 707;
+pub const NID_secp160k1: c_int = 708;
+pub const NID_secp160r1: c_int = 709;
+pub const NID_secp160r2: c_int = 710;
+pub const NID_secp192k1: c_int = 711;
+pub const NID_secp224k1: c_int = 712;
+pub const NID_secp224r1: c_int = 713;
+pub const NID_secp256k1: c_int = 714;
+pub const NID_secp384r1: c_int = 715;
+pub const NID_secp521r1: c_int = 716;
+pub const NID_sect113r1: c_int = 717;
+pub const NID_sect113r2: c_int = 718;
+pub const NID_sect131r1: c_int = 719;
+pub const NID_sect131r2: c_int = 720;
+pub const NID_sect163k1: c_int = 721;
+pub const NID_sect163r1: c_int = 722;
+pub const NID_sect163r2: c_int = 723;
+pub const NID_sect193r1: c_int = 724;
+pub const NID_sect193r2: c_int = 725;
+pub const NID_sect233k1: c_int = 726;
+pub const NID_sect233r1: c_int = 727;
+pub const NID_sect239k1: c_int = 728;
+pub const NID_sect283k1: c_int = 729;
+pub const NID_sect283r1: c_int = 730;
+pub const NID_sect409k1: c_int = 731;
+pub const NID_sect409r1: c_int = 732;
+pub const NID_sect571k1: c_int = 733;
+pub const NID_sect571r1: c_int = 734;
+#[cfg(ossl110)]
+pub const NID_brainpoolP256r1: c_int = 927;
+#[cfg(ossl110)]
+pub const NID_brainpoolP384r1: c_int = 931;
+#[cfg(ossl110)]
+pub const NID_brainpoolP512r1: c_int = 933;
+pub const NID_wap_wsg_idm_ecid_wtls1: c_int = 735;
+pub const NID_wap_wsg_idm_ecid_wtls3: c_int = 736;
+pub const NID_wap_wsg_idm_ecid_wtls4: c_int = 737;
+pub const NID_wap_wsg_idm_ecid_wtls5: c_int = 738;
+pub const NID_wap_wsg_idm_ecid_wtls6: c_int = 739;
+pub const NID_wap_wsg_idm_ecid_wtls7: c_int = 740;
+pub const NID_wap_wsg_idm_ecid_wtls8: c_int = 741;
+pub const NID_wap_wsg_idm_ecid_wtls9: c_int = 742;
+pub const NID_wap_wsg_idm_ecid_wtls10: c_int = 743;
+pub const NID_wap_wsg_idm_ecid_wtls11: c_int = 744;
+pub const NID_wap_wsg_idm_ecid_wtls12: c_int = 745;
+pub const NID_cast5_cbc: c_int = 108;
+pub const NID_cast5_ecb: c_int = 109;
+pub const NID_cast5_cfb64: c_int = 110;
+pub const NID_cast5_ofb64: c_int = 111;
+pub const NID_pbeWithMD5AndCast5_CBC: c_int = 112;
+pub const NID_id_PasswordBasedMAC: c_int = 782;
+pub const NID_id_DHBasedMac: c_int = 783;
+pub const NID_rsadsi: c_int = 1;
+pub const NID_pkcs: c_int = 2;
+pub const NID_pkcs1: c_int = 186;
+pub const NID_rsaEncryption: c_int = 6;
+pub const NID_md2WithRSAEncryption: c_int = 7;
+pub const NID_md4WithRSAEncryption: c_int = 396;
+pub const NID_md5WithRSAEncryption: c_int = 8;
+pub const NID_sha1WithRSAEncryption: c_int = 65;
+pub const NID_rsaesOaep: c_int = 919;
+pub const NID_mgf1: c_int = 911;
+pub const NID_rsassaPss: c_int = 912;
+pub const NID_sha256WithRSAEncryption: c_int = 668;
+pub const NID_sha384WithRSAEncryption: c_int = 669;
+pub const NID_sha512WithRSAEncryption: c_int = 670;
+pub const NID_sha224WithRSAEncryption: c_int = 671;
+pub const NID_pkcs3: c_int = 27;
+pub const NID_dhKeyAgreement: c_int = 28;
+pub const NID_pkcs5: c_int = 187;
+pub const NID_pbeWithMD2AndDES_CBC: c_int = 9;
+pub const NID_pbeWithMD5AndDES_CBC: c_int = 10;
+pub const NID_pbeWithMD2AndRC2_CBC: c_int = 168;
+pub const NID_pbeWithMD5AndRC2_CBC: c_int = 169;
+pub const NID_pbeWithSHA1AndDES_CBC: c_int = 170;
+pub const NID_pbeWithSHA1AndRC2_CBC: c_int = 68;
+pub const NID_id_pbkdf2: c_int = 69;
+pub const NID_pbes2: c_int = 161;
+pub const NID_pbmac1: c_int = 162;
+pub const NID_pkcs7: c_int = 20;
+pub const NID_pkcs7_data: c_int = 21;
+pub const NID_pkcs7_signed: c_int = 22;
+pub const NID_pkcs7_enveloped: c_int = 23;
+pub const NID_pkcs7_signedAndEnveloped: c_int = 24;
+pub const NID_pkcs7_digest: c_int = 25;
+pub const NID_pkcs7_encrypted: c_int = 26;
+pub const NID_pkcs9: c_int = 47;
+pub const NID_pkcs9_emailAddress: c_int = 48;
+pub const NID_pkcs9_unstructuredName: c_int = 49;
+pub const NID_pkcs9_contentType: c_int = 50;
+pub const NID_pkcs9_messageDigest: c_int = 51;
+pub const NID_pkcs9_signingTime: c_int = 52;
+pub const NID_pkcs9_countersignature: c_int = 53;
+pub const NID_pkcs9_challengePassword: c_int = 54;
+pub const NID_pkcs9_unstructuredAddress: c_int = 55;
+pub const NID_pkcs9_extCertAttributes: c_int = 56;
+pub const NID_ext_req: c_int = 172;
+pub const NID_SMIMECapabilities: c_int = 167;
+pub const NID_SMIME: c_int = 188;
+pub const NID_id_smime_mod: c_int = 189;
+pub const NID_id_smime_ct: c_int = 190;
+pub const NID_id_smime_aa: c_int = 191;
+pub const NID_id_smime_alg: c_int = 192;
+pub const NID_id_smime_cd: c_int = 193;
+pub const NID_id_smime_spq: c_int = 194;
+pub const NID_id_smime_cti: c_int = 195;
+pub const NID_id_smime_mod_cms: c_int = 196;
+pub const NID_id_smime_mod_ess: c_int = 197;
+pub const NID_id_smime_mod_oid: c_int = 198;
+pub const NID_id_smime_mod_msg_v3: c_int = 199;
+pub const NID_id_smime_mod_ets_eSignature_88: c_int = 200;
+pub const NID_id_smime_mod_ets_eSignature_97: c_int = 201;
+pub const NID_id_smime_mod_ets_eSigPolicy_88: c_int = 202;
+pub const NID_id_smime_mod_ets_eSigPolicy_97: c_int = 203;
+pub const NID_id_smime_ct_receipt: c_int = 204;
+pub const NID_id_smime_ct_authData: c_int = 205;
+pub const NID_id_smime_ct_publishCert: c_int = 206;
+pub const NID_id_smime_ct_TSTInfo: c_int = 207;
+pub const NID_id_smime_ct_TDTInfo: c_int = 208;
+pub const NID_id_smime_ct_contentInfo: c_int = 209;
+pub const NID_id_smime_ct_DVCSRequestData: c_int = 210;
+pub const NID_id_smime_ct_DVCSResponseData: c_int = 211;
+pub const NID_id_smime_ct_compressedData: c_int = 786;
+pub const NID_id_ct_asciiTextWithCRLF: c_int = 787;
+pub const NID_id_smime_aa_receiptRequest: c_int = 212;
+pub const NID_id_smime_aa_securityLabel: c_int = 213;
+pub const NID_id_smime_aa_mlExpandHistory: c_int = 214;
+pub const NID_id_smime_aa_contentHint: c_int = 215;
+pub const NID_id_smime_aa_msgSigDigest: c_int = 216;
+pub const NID_id_smime_aa_encapContentType: c_int = 217;
+pub const NID_id_smime_aa_contentIdentifier: c_int = 218;
+pub const NID_id_smime_aa_macValue: c_int = 219;
+pub const NID_id_smime_aa_equivalentLabels: c_int = 220;
+pub const NID_id_smime_aa_contentReference: c_int = 221;
+pub const NID_id_smime_aa_encrypKeyPref: c_int = 222;
+pub const NID_id_smime_aa_signingCertificate: c_int = 223;
+pub const NID_id_smime_aa_smimeEncryptCerts: c_int = 224;
+pub const NID_id_smime_aa_timeStampToken: c_int = 225;
+pub const NID_id_smime_aa_ets_sigPolicyId: c_int = 226;
+pub const NID_id_smime_aa_ets_commitmentType: c_int = 227;
+pub const NID_id_smime_aa_ets_signerLocation: c_int = 228;
+pub const NID_id_smime_aa_ets_signerAttr: c_int = 229;
+pub const NID_id_smime_aa_ets_otherSigCert: c_int = 230;
+pub const NID_id_smime_aa_ets_contentTimestamp: c_int = 231;
+pub const NID_id_smime_aa_ets_CertificateRefs: c_int = 232;
+pub const NID_id_smime_aa_ets_RevocationRefs: c_int = 233;
+pub const NID_id_smime_aa_ets_certValues: c_int = 234;
+pub const NID_id_smime_aa_ets_revocationValues: c_int = 235;
+pub const NID_id_smime_aa_ets_escTimeStamp: c_int = 236;
+pub const NID_id_smime_aa_ets_certCRLTimestamp: c_int = 237;
+pub const NID_id_smime_aa_ets_archiveTimeStamp: c_int = 238;
+pub const NID_id_smime_aa_signatureType: c_int = 239;
+pub const NID_id_smime_aa_dvcs_dvc: c_int = 240;
+pub const NID_id_smime_alg_ESDHwith3DES: c_int = 241;
+pub const NID_id_smime_alg_ESDHwithRC2: c_int = 242;
+pub const NID_id_smime_alg_3DESwrap: c_int = 243;
+pub const NID_id_smime_alg_RC2wrap: c_int = 244;
+pub const NID_id_smime_alg_ESDH: c_int = 245;
+pub const NID_id_smime_alg_CMS3DESwrap: c_int = 246;
+pub const NID_id_smime_alg_CMSRC2wrap: c_int = 247;
+pub const NID_id_alg_PWRI_KEK: c_int = 893;
+pub const NID_id_smime_cd_ldap: c_int = 248;
+pub const NID_id_smime_spq_ets_sqt_uri: c_int = 249;
+pub const NID_id_smime_spq_ets_sqt_unotice: c_int = 250;
+pub const NID_id_smime_cti_ets_proofOfOrigin: c_int = 251;
+pub const NID_id_smime_cti_ets_proofOfReceipt: c_int = 252;
+pub const NID_id_smime_cti_ets_proofOfDelivery: c_int = 253;
+pub const NID_id_smime_cti_ets_proofOfSender: c_int = 254;
+pub const NID_id_smime_cti_ets_proofOfApproval: c_int = 255;
+pub const NID_id_smime_cti_ets_proofOfCreation: c_int = 256;
+pub const NID_friendlyName: c_int = 156;
+pub const NID_localKeyID: c_int = 157;
+pub const NID_ms_csp_name: c_int = 417;
+pub const NID_LocalKeySet: c_int = 856;
+pub const NID_x509Certificate: c_int = 158;
+pub const NID_sdsiCertificate: c_int = 159;
+pub const NID_x509Crl: c_int = 160;
+pub const NID_pbe_WithSHA1And128BitRC4: c_int = 144;
+pub const NID_pbe_WithSHA1And40BitRC4: c_int = 145;
+pub const NID_pbe_WithSHA1And3_Key_TripleDES_CBC: c_int = 146;
+pub const NID_pbe_WithSHA1And2_Key_TripleDES_CBC: c_int = 147;
+pub const NID_pbe_WithSHA1And128BitRC2_CBC: c_int = 148;
+pub const NID_pbe_WithSHA1And40BitRC2_CBC: c_int = 149;
+pub const NID_keyBag: c_int = 150;
+pub const NID_pkcs8ShroudedKeyBag: c_int = 151;
+pub const NID_certBag: c_int = 152;
+pub const NID_crlBag: c_int = 153;
+pub const NID_secretBag: c_int = 154;
+pub const NID_safeContentsBag: c_int = 155;
+pub const NID_md2: c_int = 3;
+pub const NID_md4: c_int = 257;
+pub const NID_md5: c_int = 4;
+pub const NID_md5_sha1: c_int = 114;
+pub const NID_hmacWithMD5: c_int = 797;
+pub const NID_hmacWithSHA1: c_int = 163;
+pub const NID_hmacWithSHA224: c_int = 798;
+pub const NID_hmacWithSHA256: c_int = 799;
+pub const NID_hmacWithSHA384: c_int = 800;
+pub const NID_hmacWithSHA512: c_int = 801;
+pub const NID_rc2_cbc: c_int = 37;
+pub const NID_rc2_ecb: c_int = 38;
+pub const NID_rc2_cfb64: c_int = 39;
+pub const NID_rc2_ofb64: c_int = 40;
+pub const NID_rc2_40_cbc: c_int = 98;
+pub const NID_rc2_64_cbc: c_int = 166;
+pub const NID_rc4: c_int = 5;
+pub const NID_rc4_40: c_int = 97;
+pub const NID_des_ede3_cbc: c_int = 44;
+pub const NID_rc5_cbc: c_int = 120;
+pub const NID_rc5_ecb: c_int = 121;
+pub const NID_rc5_cfb64: c_int = 122;
+pub const NID_rc5_ofb64: c_int = 123;
+pub const NID_ms_ext_req: c_int = 171;
+pub const NID_ms_code_ind: c_int = 134;
+pub const NID_ms_code_com: c_int = 135;
+pub const NID_ms_ctl_sign: c_int = 136;
+pub const NID_ms_sgc: c_int = 137;
+pub const NID_ms_efs: c_int = 138;
+pub const NID_ms_smartcard_login: c_int = 648;
+pub const NID_ms_upn: c_int = 649;
+pub const NID_idea_cbc: c_int = 34;
+pub const NID_idea_ecb: c_int = 36;
+pub const NID_idea_cfb64: c_int = 35;
+pub const NID_idea_ofb64: c_int = 46;
+pub const NID_bf_cbc: c_int = 91;
+pub const NID_bf_ecb: c_int = 92;
+pub const NID_bf_cfb64: c_int = 93;
+pub const NID_bf_ofb64: c_int = 94;
+pub const NID_id_pkix: c_int = 127;
+pub const NID_id_pkix_mod: c_int = 258;
+pub const NID_id_pe: c_int = 175;
+pub const NID_id_qt: c_int = 259;
+pub const NID_id_kp: c_int = 128;
+pub const NID_id_it: c_int = 260;
+pub const NID_id_pkip: c_int = 261;
+pub const NID_id_alg: c_int = 262;
+pub const NID_id_cmc: c_int = 263;
+pub const NID_id_on: c_int = 264;
+pub const NID_id_pda: c_int = 265;
+pub const NID_id_aca: c_int = 266;
+pub const NID_id_qcs: c_int = 267;
+pub const NID_id_cct: c_int = 268;
+pub const NID_id_ppl: c_int = 662;
+pub const NID_id_ad: c_int = 176;
+pub const NID_id_pkix1_explicit_88: c_int = 269;
+pub const NID_id_pkix1_implicit_88: c_int = 270;
+pub const NID_id_pkix1_explicit_93: c_int = 271;
+pub const NID_id_pkix1_implicit_93: c_int = 272;
+pub const NID_id_mod_crmf: c_int = 273;
+pub const NID_id_mod_cmc: c_int = 274;
+pub const NID_id_mod_kea_profile_88: c_int = 275;
+pub const NID_id_mod_kea_profile_93: c_int = 276;
+pub const NID_id_mod_cmp: c_int = 277;
+pub const NID_id_mod_qualified_cert_88: c_int = 278;
+pub const NID_id_mod_qualified_cert_93: c_int = 279;
+pub const NID_id_mod_attribute_cert: c_int = 280;
+pub const NID_id_mod_timestamp_protocol: c_int = 281;
+pub const NID_id_mod_ocsp: c_int = 282;
+pub const NID_id_mod_dvcs: c_int = 283;
+pub const NID_id_mod_cmp2000: c_int = 284;
+pub const NID_info_access: c_int = 177;
+pub const NID_biometricInfo: c_int = 285;
+pub const NID_qcStatements: c_int = 286;
+pub const NID_ac_auditEntity: c_int = 287;
+pub const NID_ac_targeting: c_int = 288;
+pub const NID_aaControls: c_int = 289;
+pub const NID_sbgp_ipAddrBlock: c_int = 290;
+pub const NID_sbgp_autonomousSysNum: c_int = 291;
+pub const NID_sbgp_routerIdentifier: c_int = 292;
+pub const NID_ac_proxying: c_int = 397;
+pub const NID_sinfo_access: c_int = 398;
+pub const NID_proxyCertInfo: c_int = 663;
+pub const NID_id_qt_cps: c_int = 164;
+pub const NID_id_qt_unotice: c_int = 165;
+pub const NID_textNotice: c_int = 293;
+pub const NID_server_auth: c_int = 129;
+pub const NID_client_auth: c_int = 130;
+pub const NID_code_sign: c_int = 131;
+pub const NID_email_protect: c_int = 132;
+pub const NID_ipsecEndSystem: c_int = 294;
+pub const NID_ipsecTunnel: c_int = 295;
+pub const NID_ipsecUser: c_int = 296;
+pub const NID_time_stamp: c_int = 133;
+pub const NID_OCSP_sign: c_int = 180;
+pub const NID_dvcs: c_int = 297;
+pub const NID_id_it_caProtEncCert: c_int = 298;
+pub const NID_id_it_signKeyPairTypes: c_int = 299;
+pub const NID_id_it_encKeyPairTypes: c_int = 300;
+pub const NID_id_it_preferredSymmAlg: c_int = 301;
+pub const NID_id_it_caKeyUpdateInfo: c_int = 302;
+pub const NID_id_it_currentCRL: c_int = 303;
+pub const NID_id_it_unsupportedOIDs: c_int = 304;
+pub const NID_id_it_subscriptionRequest: c_int = 305;
+pub const NID_id_it_subscriptionResponse: c_int = 306;
+pub const NID_id_it_keyPairParamReq: c_int = 307;
+pub const NID_id_it_keyPairParamRep: c_int = 308;
+pub const NID_id_it_revPassphrase: c_int = 309;
+pub const NID_id_it_implicitConfirm: c_int = 310;
+pub const NID_id_it_confirmWaitTime: c_int = 311;
+pub const NID_id_it_origPKIMessage: c_int = 312;
+pub const NID_id_it_suppLangTags: c_int = 784;
+pub const NID_id_regCtrl: c_int = 313;
+pub const NID_id_regInfo: c_int = 314;
+pub const NID_id_regCtrl_regToken: c_int = 315;
+pub const NID_id_regCtrl_authenticator: c_int = 316;
+pub const NID_id_regCtrl_pkiPublicationInfo: c_int = 317;
+pub const NID_id_regCtrl_pkiArchiveOptions: c_int = 318;
+pub const NID_id_regCtrl_oldCertID: c_int = 319;
+pub const NID_id_regCtrl_protocolEncrKey: c_int = 320;
+pub const NID_id_regInfo_utf8Pairs: c_int = 321;
+pub const NID_id_regInfo_certReq: c_int = 322;
+pub const NID_id_alg_des40: c_int = 323;
+pub const NID_id_alg_noSignature: c_int = 324;
+pub const NID_id_alg_dh_sig_hmac_sha1: c_int = 325;
+pub const NID_id_alg_dh_pop: c_int = 326;
+pub const NID_id_cmc_statusInfo: c_int = 327;
+pub const NID_id_cmc_identification: c_int = 328;
+pub const NID_id_cmc_identityProof: c_int = 329;
+pub const NID_id_cmc_dataReturn: c_int = 330;
+pub const NID_id_cmc_transactionId: c_int = 331;
+pub const NID_id_cmc_senderNonce: c_int = 332;
+pub const NID_id_cmc_recipientNonce: c_int = 333;
+pub const NID_id_cmc_addExtensions: c_int = 334;
+pub const NID_id_cmc_encryptedPOP: c_int = 335;
+pub const NID_id_cmc_decryptedPOP: c_int = 336;
+pub const NID_id_cmc_lraPOPWitness: c_int = 337;
+pub const NID_id_cmc_getCert: c_int = 338;
+pub const NID_id_cmc_getCRL: c_int = 339;
+pub const NID_id_cmc_revokeRequest: c_int = 340;
+pub const NID_id_cmc_regInfo: c_int = 341;
+pub const NID_id_cmc_responseInfo: c_int = 342;
+pub const NID_id_cmc_queryPending: c_int = 343;
+pub const NID_id_cmc_popLinkRandom: c_int = 344;
+pub const NID_id_cmc_popLinkWitness: c_int = 345;
+pub const NID_id_cmc_confirmCertAcceptance: c_int = 346;
+pub const NID_id_on_personalData: c_int = 347;
+pub const NID_id_on_permanentIdentifier: c_int = 858;
+pub const NID_id_pda_dateOfBirth: c_int = 348;
+pub const NID_id_pda_placeOfBirth: c_int = 349;
+pub const NID_id_pda_gender: c_int = 351;
+pub const NID_id_pda_countryOfCitizenship: c_int = 352;
+pub const NID_id_pda_countryOfResidence: c_int = 353;
+pub const NID_id_aca_authenticationInfo: c_int = 354;
+pub const NID_id_aca_accessIdentity: c_int = 355;
+pub const NID_id_aca_chargingIdentity: c_int = 356;
+pub const NID_id_aca_group: c_int = 357;
+pub const NID_id_aca_role: c_int = 358;
+pub const NID_id_aca_encAttrs: c_int = 399;
+pub const NID_id_qcs_pkixQCSyntax_v1: c_int = 359;
+pub const NID_id_cct_crs: c_int = 360;
+pub const NID_id_cct_PKIData: c_int = 361;
+pub const NID_id_cct_PKIResponse: c_int = 362;
+pub const NID_id_ppl_anyLanguage: c_int = 664;
+pub const NID_id_ppl_inheritAll: c_int = 665;
+pub const NID_Independent: c_int = 667;
+pub const NID_ad_OCSP: c_int = 178;
+pub const NID_ad_ca_issuers: c_int = 179;
+pub const NID_ad_timeStamping: c_int = 363;
+pub const NID_ad_dvcs: c_int = 364;
+pub const NID_caRepository: c_int = 785;
+pub const NID_id_pkix_OCSP_basic: c_int = 365;
+pub const NID_id_pkix_OCSP_Nonce: c_int = 366;
+pub const NID_id_pkix_OCSP_CrlID: c_int = 367;
+pub const NID_id_pkix_OCSP_acceptableResponses: c_int = 368;
+pub const NID_id_pkix_OCSP_noCheck: c_int = 369;
+pub const NID_id_pkix_OCSP_archiveCutoff: c_int = 370;
+pub const NID_id_pkix_OCSP_serviceLocator: c_int = 371;
+pub const NID_id_pkix_OCSP_extendedStatus: c_int = 372;
+pub const NID_id_pkix_OCSP_valid: c_int = 373;
+pub const NID_id_pkix_OCSP_path: c_int = 374;
+pub const NID_id_pkix_OCSP_trustRoot: c_int = 375;
+pub const NID_algorithm: c_int = 376;
+pub const NID_md5WithRSA: c_int = 104;
+pub const NID_des_ecb: c_int = 29;
+pub const NID_des_cbc: c_int = 31;
+pub const NID_des_ofb64: c_int = 45;
+pub const NID_des_cfb64: c_int = 30;
+pub const NID_rsaSignature: c_int = 377;
+pub const NID_dsa_2: c_int = 67;
+pub const NID_dsaWithSHA: c_int = 66;
+pub const NID_shaWithRSAEncryption: c_int = 42;
+pub const NID_des_ede_ecb: c_int = 32;
+pub const NID_des_ede3_ecb: c_int = 33;
+pub const NID_des_ede_cbc: c_int = 43;
+pub const NID_des_ede_cfb64: c_int = 60;
+pub const NID_des_ede3_cfb64: c_int = 61;
+pub const NID_des_ede_ofb64: c_int = 62;
+pub const NID_des_ede3_ofb64: c_int = 63;
+pub const NID_desx_cbc: c_int = 80;
+pub const NID_sha: c_int = 41;
+pub const NID_sha1: c_int = 64;
+pub const NID_dsaWithSHA1_2: c_int = 70;
+pub const NID_sha1WithRSA: c_int = 115;
+pub const NID_ripemd160: c_int = 117;
+pub const NID_ripemd160WithRSA: c_int = 119;
+pub const NID_sxnet: c_int = 143;
+pub const NID_X500: c_int = 11;
+pub const NID_X509: c_int = 12;
+pub const NID_commonName: c_int = 13;
+pub const NID_surname: c_int = 100;
+pub const NID_serialNumber: c_int = 105;
+pub const NID_countryName: c_int = 14;
+pub const NID_localityName: c_int = 15;
+pub const NID_stateOrProvinceName: c_int = 16;
+pub const NID_streetAddress: c_int = 660;
+pub const NID_organizationName: c_int = 17;
+pub const NID_organizationalUnitName: c_int = 18;
+pub const NID_title: c_int = 106;
+pub const NID_description: c_int = 107;
+pub const NID_searchGuide: c_int = 859;
+pub const NID_businessCategory: c_int = 860;
+pub const NID_postalAddress: c_int = 861;
+pub const NID_postalCode: c_int = 661;
+pub const NID_postOfficeBox: c_int = 862;
+pub const NID_physicalDeliveryOfficeName: c_int = 863;
+pub const NID_telephoneNumber: c_int = 864;
+pub const NID_telexNumber: c_int = 865;
+pub const NID_teletexTerminalIdentifier: c_int = 866;
+pub const NID_facsimileTelephoneNumber: c_int = 867;
+pub const NID_x121Address: c_int = 868;
+pub const NID_internationaliSDNNumber: c_int = 869;
+pub const NID_registeredAddress: c_int = 870;
+pub const NID_destinationIndicator: c_int = 871;
+pub const NID_preferredDeliveryMethod: c_int = 872;
+pub const NID_presentationAddress: c_int = 873;
+pub const NID_supportedApplicationContext: c_int = 874;
+pub const NID_member: c_int = 875;
+pub const NID_owner: c_int = 876;
+pub const NID_roleOccupant: c_int = 877;
+pub const NID_seeAlso: c_int = 878;
+pub const NID_userPassword: c_int = 879;
+pub const NID_userCertificate: c_int = 880;
+pub const NID_cACertificate: c_int = 881;
+pub const NID_authorityRevocationList: c_int = 882;
+pub const NID_certificateRevocationList: c_int = 883;
+pub const NID_crossCertificatePair: c_int = 884;
+pub const NID_name: c_int = 173;
+pub const NID_givenName: c_int = 99;
+pub const NID_initials: c_int = 101;
+pub const NID_generationQualifier: c_int = 509;
+pub const NID_x500UniqueIdentifier: c_int = 503;
+pub const NID_dnQualifier: c_int = 174;
+pub const NID_enhancedSearchGuide: c_int = 885;
+pub const NID_protocolInformation: c_int = 886;
+pub const NID_distinguishedName: c_int = 887;
+pub const NID_uniqueMember: c_int = 888;
+pub const NID_houseIdentifier: c_int = 889;
+pub const NID_supportedAlgorithms: c_int = 890;
+pub const NID_deltaRevocationList: c_int = 891;
+pub const NID_dmdName: c_int = 892;
+pub const NID_pseudonym: c_int = 510;
+pub const NID_role: c_int = 400;
+pub const NID_X500algorithms: c_int = 378;
+pub const NID_rsa: c_int = 19;
+pub const NID_mdc2WithRSA: c_int = 96;
+pub const NID_mdc2: c_int = 95;
+pub const NID_id_ce: c_int = 81;
+pub const NID_subject_directory_attributes: c_int = 769;
+pub const NID_subject_key_identifier: c_int = 82;
+pub const NID_key_usage: c_int = 83;
+pub const NID_private_key_usage_period: c_int = 84;
+pub const NID_subject_alt_name: c_int = 85;
+pub const NID_issuer_alt_name: c_int = 86;
+pub const NID_basic_constraints: c_int = 87;
+pub const NID_crl_number: c_int = 88;
+pub const NID_crl_reason: c_int = 141;
+pub const NID_invalidity_date: c_int = 142;
+pub const NID_delta_crl: c_int = 140;
+pub const NID_issuing_distribution_point: c_int = 770;
+pub const NID_certificate_issuer: c_int = 771;
+pub const NID_name_constraints: c_int = 666;
+pub const NID_crl_distribution_points: c_int = 103;
+pub const NID_certificate_policies: c_int = 89;
+pub const NID_any_policy: c_int = 746;
+pub const NID_policy_mappings: c_int = 747;
+pub const NID_authority_key_identifier: c_int = 90;
+pub const NID_policy_constraints: c_int = 401;
+pub const NID_ext_key_usage: c_int = 126;
+pub const NID_freshest_crl: c_int = 857;
+pub const NID_inhibit_any_policy: c_int = 748;
+pub const NID_target_information: c_int = 402;
+pub const NID_no_rev_avail: c_int = 403;
+pub const NID_anyExtendedKeyUsage: c_int = 910;
+pub const NID_netscape: c_int = 57;
+pub const NID_netscape_cert_extension: c_int = 58;
+pub const NID_netscape_data_type: c_int = 59;
+pub const NID_netscape_cert_type: c_int = 71;
+pub const NID_netscape_base_url: c_int = 72;
+pub const NID_netscape_revocation_url: c_int = 73;
+pub const NID_netscape_ca_revocation_url: c_int = 74;
+pub const NID_netscape_renewal_url: c_int = 75;
+pub const NID_netscape_ca_policy_url: c_int = 76;
+pub const NID_netscape_ssl_server_name: c_int = 77;
+pub const NID_netscape_comment: c_int = 78;
+pub const NID_netscape_cert_sequence: c_int = 79;
+pub const NID_ns_sgc: c_int = 139;
+pub const NID_org: c_int = 379;
+pub const NID_dod: c_int = 380;
+pub const NID_iana: c_int = 381;
+pub const NID_Directory: c_int = 382;
+pub const NID_Management: c_int = 383;
+pub const NID_Experimental: c_int = 384;
+pub const NID_Private: c_int = 385;
+pub const NID_Security: c_int = 386;
+pub const NID_SNMPv2: c_int = 387;
+pub const NID_Mail: c_int = 388;
+pub const NID_Enterprises: c_int = 389;
+pub const NID_dcObject: c_int = 390;
+pub const NID_mime_mhs: c_int = 504;
+pub const NID_mime_mhs_headings: c_int = 505;
+pub const NID_mime_mhs_bodies: c_int = 506;
+pub const NID_id_hex_partial_message: c_int = 507;
+pub const NID_id_hex_multipart_message: c_int = 508;
+pub const NID_zlib_compression: c_int = 125;
+pub const NID_aes_128_ecb: c_int = 418;
+pub const NID_aes_128_cbc: c_int = 419;
+pub const NID_aes_128_ofb128: c_int = 420;
+pub const NID_aes_128_cfb128: c_int = 421;
+pub const NID_id_aes128_wrap: c_int = 788;
+pub const NID_aes_128_gcm: c_int = 895;
+pub const NID_aes_128_ccm: c_int = 896;
+pub const NID_id_aes128_wrap_pad: c_int = 897;
+pub const NID_aes_192_ecb: c_int = 422;
+pub const NID_aes_192_cbc: c_int = 423;
+pub const NID_aes_192_ofb128: c_int = 424;
+pub const NID_aes_192_cfb128: c_int = 425;
+pub const NID_id_aes192_wrap: c_int = 789;
+pub const NID_aes_192_gcm: c_int = 898;
+pub const NID_aes_192_ccm: c_int = 899;
+pub const NID_id_aes192_wrap_pad: c_int = 900;
+pub const NID_aes_256_ecb: c_int = 426;
+pub const NID_aes_256_cbc: c_int = 427;
+pub const NID_aes_256_ofb128: c_int = 428;
+pub const NID_aes_256_cfb128: c_int = 429;
+pub const NID_id_aes256_wrap: c_int = 790;
+pub const NID_aes_256_gcm: c_int = 901;
+pub const NID_aes_256_ccm: c_int = 902;
+pub const NID_id_aes256_wrap_pad: c_int = 903;
+pub const NID_aes_128_cfb1: c_int = 650;
+pub const NID_aes_192_cfb1: c_int = 651;
+pub const NID_aes_256_cfb1: c_int = 652;
+pub const NID_aes_128_cfb8: c_int = 653;
+pub const NID_aes_192_cfb8: c_int = 654;
+pub const NID_aes_256_cfb8: c_int = 655;
+pub const NID_aes_128_ctr: c_int = 904;
+pub const NID_aes_192_ctr: c_int = 905;
+pub const NID_aes_256_ctr: c_int = 906;
+pub const NID_aes_128_xts: c_int = 913;
+pub const NID_aes_256_xts: c_int = 914;
+pub const NID_des_cfb1: c_int = 656;
+pub const NID_des_cfb8: c_int = 657;
+pub const NID_des_ede3_cfb1: c_int = 658;
+pub const NID_des_ede3_cfb8: c_int = 659;
+pub const NID_sha256: c_int = 672;
+pub const NID_sha384: c_int = 673;
+pub const NID_sha512: c_int = 674;
+pub const NID_sha224: c_int = 675;
+pub const NID_dsa_with_SHA224: c_int = 802;
+pub const NID_dsa_with_SHA256: c_int = 803;
+pub const NID_hold_instruction_code: c_int = 430;
+pub const NID_hold_instruction_none: c_int = 431;
+pub const NID_hold_instruction_call_issuer: c_int = 432;
+pub const NID_hold_instruction_reject: c_int = 433;
+pub const NID_data: c_int = 434;
+pub const NID_pss: c_int = 435;
+pub const NID_ucl: c_int = 436;
+pub const NID_pilot: c_int = 437;
+pub const NID_pilotAttributeType: c_int = 438;
+pub const NID_pilotAttributeSyntax: c_int = 439;
+pub const NID_pilotObjectClass: c_int = 440;
+pub const NID_pilotGroups: c_int = 441;
+pub const NID_iA5StringSyntax: c_int = 442;
+pub const NID_caseIgnoreIA5StringSyntax: c_int = 443;
+pub const NID_pilotObject: c_int = 444;
+pub const NID_pilotPerson: c_int = 445;
+pub const NID_account: c_int = 446;
+pub const NID_document: c_int = 447;
+pub const NID_room: c_int = 448;
+pub const NID_documentSeries: c_int = 449;
+pub const NID_Domain: c_int = 392;
+pub const NID_rFC822localPart: c_int = 450;
+pub const NID_dNSDomain: c_int = 451;
+pub const NID_domainRelatedObject: c_int = 452;
+pub const NID_friendlyCountry: c_int = 453;
+pub const NID_simpleSecurityObject: c_int = 454;
+pub const NID_pilotOrganization: c_int = 455;
+pub const NID_pilotDSA: c_int = 456;
+pub const NID_qualityLabelledData: c_int = 457;
+pub const NID_userId: c_int = 458;
+pub const NID_textEncodedORAddress: c_int = 459;
+pub const NID_rfc822Mailbox: c_int = 460;
+pub const NID_info: c_int = 461;
+pub const NID_favouriteDrink: c_int = 462;
+pub const NID_roomNumber: c_int = 463;
+pub const NID_photo: c_int = 464;
+pub const NID_userClass: c_int = 465;
+pub const NID_host: c_int = 466;
+pub const NID_manager: c_int = 467;
+pub const NID_documentIdentifier: c_int = 468;
+pub const NID_documentTitle: c_int = 469;
+pub const NID_documentVersion: c_int = 470;
+pub const NID_documentAuthor: c_int = 471;
+pub const NID_documentLocation: c_int = 472;
+pub const NID_homeTelephoneNumber: c_int = 473;
+pub const NID_secretary: c_int = 474;
+pub const NID_otherMailbox: c_int = 475;
+pub const NID_lastModifiedTime: c_int = 476;
+pub const NID_lastModifiedBy: c_int = 477;
+pub const NID_domainComponent: c_int = 391;
+pub const NID_aRecord: c_int = 478;
+pub const NID_pilotAttributeType27: c_int = 479;
+pub const NID_mXRecord: c_int = 480;
+pub const NID_nSRecord: c_int = 481;
+pub const NID_sOARecord: c_int = 482;
+pub const NID_cNAMERecord: c_int = 483;
+pub const NID_associatedDomain: c_int = 484;
+pub const NID_associatedName: c_int = 485;
+pub const NID_homePostalAddress: c_int = 486;
+pub const NID_personalTitle: c_int = 487;
+pub const NID_mobileTelephoneNumber: c_int = 488;
+pub const NID_pagerTelephoneNumber: c_int = 489;
+pub const NID_friendlyCountryName: c_int = 490;
+pub const NID_organizationalStatus: c_int = 491;
+pub const NID_janetMailbox: c_int = 492;
+pub const NID_mailPreferenceOption: c_int = 493;
+pub const NID_buildingName: c_int = 494;
+pub const NID_dSAQuality: c_int = 495;
+pub const NID_singleLevelQuality: c_int = 496;
+pub const NID_subtreeMinimumQuality: c_int = 497;
+pub const NID_subtreeMaximumQuality: c_int = 498;
+pub const NID_personalSignature: c_int = 499;
+pub const NID_dITRedirect: c_int = 500;
+pub const NID_audio: c_int = 501;
+pub const NID_documentPublisher: c_int = 502;
+pub const NID_id_set: c_int = 512;
+pub const NID_set_ctype: c_int = 513;
+pub const NID_set_msgExt: c_int = 514;
+pub const NID_set_attr: c_int = 515;
+pub const NID_set_policy: c_int = 516;
+pub const NID_set_certExt: c_int = 517;
+pub const NID_set_brand: c_int = 518;
+pub const NID_setct_PANData: c_int = 519;
+pub const NID_setct_PANToken: c_int = 520;
+pub const NID_setct_PANOnly: c_int = 521;
+pub const NID_setct_OIData: c_int = 522;
+pub const NID_setct_PI: c_int = 523;
+pub const NID_setct_PIData: c_int = 524;
+pub const NID_setct_PIDataUnsigned: c_int = 525;
+pub const NID_setct_HODInput: c_int = 526;
+pub const NID_setct_AuthResBaggage: c_int = 527;
+pub const NID_setct_AuthRevReqBaggage: c_int = 528;
+pub const NID_setct_AuthRevResBaggage: c_int = 529;
+pub const NID_setct_CapTokenSeq: c_int = 530;
+pub const NID_setct_PInitResData: c_int = 531;
+pub const NID_setct_PI_TBS: c_int = 532;
+pub const NID_setct_PResData: c_int = 533;
+pub const NID_setct_AuthReqTBS: c_int = 534;
+pub const NID_setct_AuthResTBS: c_int = 535;
+pub const NID_setct_AuthResTBSX: c_int = 536;
+pub const NID_setct_AuthTokenTBS: c_int = 537;
+pub const NID_setct_CapTokenData: c_int = 538;
+pub const NID_setct_CapTokenTBS: c_int = 539;
+pub const NID_setct_AcqCardCodeMsg: c_int = 540;
+pub const NID_setct_AuthRevReqTBS: c_int = 541;
+pub const NID_setct_AuthRevResData: c_int = 542;
+pub const NID_setct_AuthRevResTBS: c_int = 543;
+pub const NID_setct_CapReqTBS: c_int = 544;
+pub const NID_setct_CapReqTBSX: c_int = 545;
+pub const NID_setct_CapResData: c_int = 546;
+pub const NID_setct_CapRevReqTBS: c_int = 547;
+pub const NID_setct_CapRevReqTBSX: c_int = 548;
+pub const NID_setct_CapRevResData: c_int = 549;
+pub const NID_setct_CredReqTBS: c_int = 550;
+pub const NID_setct_CredReqTBSX: c_int = 551;
+pub const NID_setct_CredResData: c_int = 552;
+pub const NID_setct_CredRevReqTBS: c_int = 553;
+pub const NID_setct_CredRevReqTBSX: c_int = 554;
+pub const NID_setct_CredRevResData: c_int = 555;
+pub const NID_setct_PCertReqData: c_int = 556;
+pub const NID_setct_PCertResTBS: c_int = 557;
+pub const NID_setct_BatchAdminReqData: c_int = 558;
+pub const NID_setct_BatchAdminResData: c_int = 559;
+pub const NID_setct_CardCInitResTBS: c_int = 560;
+pub const NID_setct_MeAqCInitResTBS: c_int = 561;
+pub const NID_setct_RegFormResTBS: c_int = 562;
+pub const NID_setct_CertReqData: c_int = 563;
+pub const NID_setct_CertReqTBS: c_int = 564;
+pub const NID_setct_CertResData: c_int = 565;
+pub const NID_setct_CertInqReqTBS: c_int = 566;
+pub const NID_setct_ErrorTBS: c_int = 567;
+pub const NID_setct_PIDualSignedTBE: c_int = 568;
+pub const NID_setct_PIUnsignedTBE: c_int = 569;
+pub const NID_setct_AuthReqTBE: c_int = 570;
+pub const NID_setct_AuthResTBE: c_int = 571;
+pub const NID_setct_AuthResTBEX: c_int = 572;
+pub const NID_setct_AuthTokenTBE: c_int = 573;
+pub const NID_setct_CapTokenTBE: c_int = 574;
+pub const NID_setct_CapTokenTBEX: c_int = 575;
+pub const NID_setct_AcqCardCodeMsgTBE: c_int = 576;
+pub const NID_setct_AuthRevReqTBE: c_int = 577;
+pub const NID_setct_AuthRevResTBE: c_int = 578;
+pub const NID_setct_AuthRevResTBEB: c_int = 579;
+pub const NID_setct_CapReqTBE: c_int = 580;
+pub const NID_setct_CapReqTBEX: c_int = 581;
+pub const NID_setct_CapResTBE: c_int = 582;
+pub const NID_setct_CapRevReqTBE: c_int = 583;
+pub const NID_setct_CapRevReqTBEX: c_int = 584;
+pub const NID_setct_CapRevResTBE: c_int = 585;
+pub const NID_setct_CredReqTBE: c_int = 586;
+pub const NID_setct_CredReqTBEX: c_int = 587;
+pub const NID_setct_CredResTBE: c_int = 588;
+pub const NID_setct_CredRevReqTBE: c_int = 589;
+pub const NID_setct_CredRevReqTBEX: c_int = 590;
+pub const NID_setct_CredRevResTBE: c_int = 591;
+pub const NID_setct_BatchAdminReqTBE: c_int = 592;
+pub const NID_setct_BatchAdminResTBE: c_int = 593;
+pub const NID_setct_RegFormReqTBE: c_int = 594;
+pub const NID_setct_CertReqTBE: c_int = 595;
+pub const NID_setct_CertReqTBEX: c_int = 596;
+pub const NID_setct_CertResTBE: c_int = 597;
+pub const NID_setct_CRLNotificationTBS: c_int = 598;
+pub const NID_setct_CRLNotificationResTBS: c_int = 599;
+pub const NID_setct_BCIDistributionTBS: c_int = 600;
+pub const NID_setext_genCrypt: c_int = 601;
+pub const NID_setext_miAuth: c_int = 602;
+pub const NID_setext_pinSecure: c_int = 603;
+pub const NID_setext_pinAny: c_int = 604;
+pub const NID_setext_track2: c_int = 605;
+pub const NID_setext_cv: c_int = 606;
+pub const NID_set_policy_root: c_int = 607;
+pub const NID_setCext_hashedRoot: c_int = 608;
+pub const NID_setCext_certType: c_int = 609;
+pub const NID_setCext_merchData: c_int = 610;
+pub const NID_setCext_cCertRequired: c_int = 611;
+pub const NID_setCext_tunneling: c_int = 612;
+pub const NID_setCext_setExt: c_int = 613;
+pub const NID_setCext_setQualf: c_int = 614;
+pub const NID_setCext_PGWYcapabilities: c_int = 615;
+pub const NID_setCext_TokenIdentifier: c_int = 616;
+pub const NID_setCext_Track2Data: c_int = 617;
+pub const NID_setCext_TokenType: c_int = 618;
+pub const NID_setCext_IssuerCapabilities: c_int = 619;
+pub const NID_setAttr_Cert: c_int = 620;
+pub const NID_setAttr_PGWYcap: c_int = 621;
+pub const NID_setAttr_TokenType: c_int = 622;
+pub const NID_setAttr_IssCap: c_int = 623;
+pub const NID_set_rootKeyThumb: c_int = 624;
+pub const NID_set_addPolicy: c_int = 625;
+pub const NID_setAttr_Token_EMV: c_int = 626;
+pub const NID_setAttr_Token_B0Prime: c_int = 627;
+pub const NID_setAttr_IssCap_CVM: c_int = 628;
+pub const NID_setAttr_IssCap_T2: c_int = 629;
+pub const NID_setAttr_IssCap_Sig: c_int = 630;
+pub const NID_setAttr_GenCryptgrm: c_int = 631;
+pub const NID_setAttr_T2Enc: c_int = 632;
+pub const NID_setAttr_T2cleartxt: c_int = 633;
+pub const NID_setAttr_TokICCsig: c_int = 634;
+pub const NID_setAttr_SecDevSig: c_int = 635;
+pub const NID_set_brand_IATA_ATA: c_int = 636;
+pub const NID_set_brand_Diners: c_int = 637;
+pub const NID_set_brand_AmericanExpress: c_int = 638;
+pub const NID_set_brand_JCB: c_int = 639;
+pub const NID_set_brand_Visa: c_int = 640;
+pub const NID_set_brand_MasterCard: c_int = 641;
+pub const NID_set_brand_Novus: c_int = 642;
+pub const NID_des_cdmf: c_int = 643;
+pub const NID_rsaOAEPEncryptionSET: c_int = 644;
+pub const NID_ipsec3: c_int = 749;
+pub const NID_ipsec4: c_int = 750;
+pub const NID_whirlpool: c_int = 804;
+pub const NID_cryptopro: c_int = 805;
+pub const NID_cryptocom: c_int = 806;
+pub const NID_id_GostR3411_94_with_GostR3410_2001: c_int = 807;
+pub const NID_id_GostR3411_94_with_GostR3410_94: c_int = 808;
+pub const NID_id_GostR3411_94: c_int = 809;
+pub const NID_id_HMACGostR3411_94: c_int = 810;
+pub const NID_id_GostR3410_2001: c_int = 811;
+pub const NID_id_GostR3410_94: c_int = 812;
+pub const NID_id_Gost28147_89: c_int = 813;
+pub const NID_gost89_cnt: c_int = 814;
+pub const NID_id_Gost28147_89_MAC: c_int = 815;
+pub const NID_id_GostR3411_94_prf: c_int = 816;
+pub const NID_id_GostR3410_2001DH: c_int = 817;
+pub const NID_id_GostR3410_94DH: c_int = 818;
+pub const NID_id_Gost28147_89_CryptoPro_KeyMeshing: c_int = 819;
+pub const NID_id_Gost28147_89_None_KeyMeshing: c_int = 820;
+pub const NID_id_GostR3411_94_TestParamSet: c_int = 821;
+pub const NID_id_GostR3411_94_CryptoProParamSet: c_int = 822;
+pub const NID_id_Gost28147_89_TestParamSet: c_int = 823;
+pub const NID_id_Gost28147_89_CryptoPro_A_ParamSet: c_int = 824;
+pub const NID_id_Gost28147_89_CryptoPro_B_ParamSet: c_int = 825;
+pub const NID_id_Gost28147_89_CryptoPro_C_ParamSet: c_int = 826;
+pub const NID_id_Gost28147_89_CryptoPro_D_ParamSet: c_int = 827;
+pub const NID_id_Gost28147_89_CryptoPro_Oscar_1_1_ParamSet: c_int = 828;
+pub const NID_id_Gost28147_89_CryptoPro_Oscar_1_0_ParamSet: c_int = 829;
+pub const NID_id_Gost28147_89_CryptoPro_RIC_1_ParamSet: c_int = 830;
+pub const NID_id_GostR3410_94_TestParamSet: c_int = 831;
+pub const NID_id_GostR3410_94_CryptoPro_A_ParamSet: c_int = 832;
+pub const NID_id_GostR3410_94_CryptoPro_B_ParamSet: c_int = 833;
+pub const NID_id_GostR3410_94_CryptoPro_C_ParamSet: c_int = 834;
+pub const NID_id_GostR3410_94_CryptoPro_D_ParamSet: c_int = 835;
+pub const NID_id_GostR3410_94_CryptoPro_XchA_ParamSet: c_int = 836;
+pub const NID_id_GostR3410_94_CryptoPro_XchB_ParamSet: c_int = 837;
+pub const NID_id_GostR3410_94_CryptoPro_XchC_ParamSet: c_int = 838;
+pub const NID_id_GostR3410_2001_TestParamSet: c_int = 839;
+pub const NID_id_GostR3410_2001_CryptoPro_A_ParamSet: c_int = 840;
+pub const NID_id_GostR3410_2001_CryptoPro_B_ParamSet: c_int = 841;
+pub const NID_id_GostR3410_2001_CryptoPro_C_ParamSet: c_int = 842;
+pub const NID_id_GostR3410_2001_CryptoPro_XchA_ParamSet: c_int = 843;
+pub const NID_id_GostR3410_2001_CryptoPro_XchB_ParamSet: c_int = 844;
+pub const NID_id_GostR3410_94_a: c_int = 845;
+pub const NID_id_GostR3410_94_aBis: c_int = 846;
+pub const NID_id_GostR3410_94_b: c_int = 847;
+pub const NID_id_GostR3410_94_bBis: c_int = 848;
+pub const NID_id_Gost28147_89_cc: c_int = 849;
+pub const NID_id_GostR3410_94_cc: c_int = 850;
+pub const NID_id_GostR3410_2001_cc: c_int = 851;
+pub const NID_id_GostR3411_94_with_GostR3410_94_cc: c_int = 852;
+pub const NID_id_GostR3411_94_with_GostR3410_2001_cc: c_int = 853;
+pub const NID_id_GostR3410_2001_ParamSet_cc: c_int = 854;
+pub const NID_camellia_128_cbc: c_int = 751;
+pub const NID_camellia_192_cbc: c_int = 752;
+pub const NID_camellia_256_cbc: c_int = 753;
+pub const NID_id_camellia128_wrap: c_int = 907;
+pub const NID_id_camellia192_wrap: c_int = 908;
+pub const NID_id_camellia256_wrap: c_int = 909;
+pub const NID_camellia_128_ecb: c_int = 754;
+pub const NID_camellia_128_ofb128: c_int = 766;
+pub const NID_camellia_128_cfb128: c_int = 757;
+pub const NID_camellia_192_ecb: c_int = 755;
+pub const NID_camellia_192_ofb128: c_int = 767;
+pub const NID_camellia_192_cfb128: c_int = 758;
+pub const NID_camellia_256_ecb: c_int = 756;
+pub const NID_camellia_256_ofb128: c_int = 768;
+pub const NID_camellia_256_cfb128: c_int = 759;
+pub const NID_camellia_128_cfb1: c_int = 760;
+pub const NID_camellia_192_cfb1: c_int = 761;
+pub const NID_camellia_256_cfb1: c_int = 762;
+pub const NID_camellia_128_cfb8: c_int = 763;
+pub const NID_camellia_192_cfb8: c_int = 764;
+pub const NID_camellia_256_cfb8: c_int = 765;
+pub const NID_kisa: c_int = 773;
+pub const NID_seed_ecb: c_int = 776;
+pub const NID_seed_cbc: c_int = 777;
+pub const NID_seed_cfb128: c_int = 779;
+pub const NID_seed_ofb128: c_int = 778;
+pub const NID_hmac: c_int = 855;
+pub const NID_cmac: c_int = 894;
+pub const NID_rc4_hmac_md5: c_int = 915;
+pub const NID_aes_128_cbc_hmac_sha1: c_int = 916;
+pub const NID_aes_192_cbc_hmac_sha1: c_int = 917;
+pub const NID_aes_256_cbc_hmac_sha1: c_int = 918;
+#[cfg(ossl111)]
+pub const NID_X25519: c_int = 1034;
+#[cfg(libressl370)]
+pub const NID_X25519: c_int = 950;
+#[cfg(ossl111)]
+pub const NID_X448: c_int = 1035;
+#[cfg(ossl110)]
+pub const NID_hkdf: c_int = 1036;
+#[cfg(ossl111)]
+pub const NID_poly1305: c_int = 1061;
+#[cfg(ossl111)]
+pub const NID_ED25519: c_int = 1087;
+#[cfg(libressl370)]
+pub const NID_ED25519: c_int = 952;
+#[cfg(ossl111)]
+pub const NID_ED448: c_int = 1088;
+#[cfg(ossl111)]
+pub const NID_sm2: c_int = 1172;
+#[cfg(ossl111)]
+pub const NID_sm3: c_int = 1143;
+#[cfg(libressl291)]
+pub const NID_sm3: c_int = 968;
+#[cfg(ossl111)]
+pub const NID_sm3WithRSAEncryption: c_int = 1144;
+#[cfg(libressl291)]
+pub const NID_sm3WithRSAEncryption: c_int = 969;
+#[cfg(ossl111)]
+pub const NID_sm4_ecb: c_int = 1133;
+#[cfg(libressl291)]
+pub const NID_sm4_ecb: c_int = 973;
+#[cfg(ossl111)]
+pub const NID_sm4_cbc: c_int = 1134;
+#[cfg(libressl291)]
+pub const NID_sm4_cbc: c_int = 974;
+#[cfg(ossl111)]
+pub const NID_sm4_ofb128: c_int = 1135;
+#[cfg(libressl291)]
+pub const NID_sm4_ofb128: c_int = 975;
+#[cfg(ossl111)]
+pub const NID_sm4_cfb128: c_int = 1137;
+#[cfg(libressl291)]
+pub const NID_sm4_cfb128: c_int = 976;
+#[cfg(ossl111)]
+pub const NID_sm4_cfb1: c_int = 1136;
+#[cfg(libressl291)]
+pub const NID_sm4_cfb1: c_int = 977;
+#[cfg(ossl111)]
+pub const NID_sm4_cfb8: c_int = 1138;
+#[cfg(libressl291)]
+pub const NID_sm4_cfb8: c_int = 978;
+#[cfg(ossl111)]
+pub const NID_sm4_ctr: c_int = 1139;
+#[cfg(libressl291)]
+pub const NID_sm4_ctr: c_int = 979;
+#[cfg(ossl111)]
+pub const NID_sha3_224: c_int = 1096;
+#[cfg(ossl111)]
+pub const NID_sha3_256: c_int = 1097;
+#[cfg(ossl111)]
+pub const NID_sha3_384: c_int = 1098;
+#[cfg(ossl111)]
+pub const NID_sha3_512: c_int = 1099;
+#[cfg(ossl111)]
+pub const NID_shake128: c_int = 1100;
+#[cfg(ossl111)]
+pub const NID_shake256: c_int = 1101;
diff --git a/vendor/openssl-sys/src/ocsp.rs b/vendor/openssl-sys/src/ocsp.rs
new file mode 100644
index 0000000..fc0db39
--- /dev/null
+++ b/vendor/openssl-sys/src/ocsp.rs
@@ -0,0 +1,35 @@
+use libc::*;
+
+pub const OCSP_REVOKED_STATUS_NOSTATUS: c_int = -1;
+pub const OCSP_REVOKED_STATUS_UNSPECIFIED: c_int = 0;
+pub const OCSP_REVOKED_STATUS_KEYCOMPROMISE: c_int = 1;
+pub const OCSP_REVOKED_STATUS_CACOMPROMISE: c_int = 2;
+pub const OCSP_REVOKED_STATUS_AFFILIATIONCHANGED: c_int = 3;
+pub const OCSP_REVOKED_STATUS_SUPERSEDED: c_int = 4;
+pub const OCSP_REVOKED_STATUS_CESSATIONOFOPERATION: c_int = 5;
+pub const OCSP_REVOKED_STATUS_CERTIFICATEHOLD: c_int = 6;
+pub const OCSP_REVOKED_STATUS_REMOVEFROMCRL: c_int = 8;
+
+pub const OCSP_NOCERTS: c_ulong = 0x1;
+pub const OCSP_NOINTERN: c_ulong = 0x2;
+pub const OCSP_NOSIGS: c_ulong = 0x4;
+pub const OCSP_NOCHAIN: c_ulong = 0x8;
+pub const OCSP_NOVERIFY: c_ulong = 0x10;
+pub const OCSP_NOEXPLICIT: c_ulong = 0x20;
+pub const OCSP_NOCASIGN: c_ulong = 0x40;
+pub const OCSP_NODELEGATED: c_ulong = 0x80;
+pub const OCSP_NOCHECKS: c_ulong = 0x100;
+pub const OCSP_TRUSTOTHER: c_ulong = 0x200;
+pub const OCSP_RESPID_KEY: c_ulong = 0x400;
+pub const OCSP_NOTIME: c_ulong = 0x800;
+
+pub const OCSP_RESPONSE_STATUS_SUCCESSFUL: c_int = 0;
+pub const OCSP_RESPONSE_STATUS_MALFORMEDREQUEST: c_int = 1;
+pub const OCSP_RESPONSE_STATUS_INTERNALERROR: c_int = 2;
+pub const OCSP_RESPONSE_STATUS_TRYLATER: c_int = 3;
+pub const OCSP_RESPONSE_STATUS_SIGREQUIRED: c_int = 5;
+pub const OCSP_RESPONSE_STATUS_UNAUTHORIZED: c_int = 6;
+
+pub const V_OCSP_CERTSTATUS_GOOD: c_int = 0;
+pub const V_OCSP_CERTSTATUS_REVOKED: c_int = 1;
+pub const V_OCSP_CERTSTATUS_UNKNOWN: c_int = 2;
diff --git a/vendor/openssl-sys/src/pem.rs b/vendor/openssl-sys/src/pem.rs
new file mode 100644
index 0000000..f7dd8ac
--- /dev/null
+++ b/vendor/openssl-sys/src/pem.rs
@@ -0,0 +1,3 @@
+use libc::*;
+
+pub const PEM_R_NO_START_LINE: c_int = 108;
diff --git a/vendor/openssl-sys/src/pkcs7.rs b/vendor/openssl-sys/src/pkcs7.rs
new file mode 100644
index 0000000..0a56225
--- /dev/null
+++ b/vendor/openssl-sys/src/pkcs7.rs
@@ -0,0 +1,20 @@
+use libc::*;
+
+pub const PKCS7_TEXT: c_int = 0x1;
+pub const PKCS7_NOCERTS: c_int = 0x2;
+pub const PKCS7_NOSIGS: c_int = 0x4;
+pub const PKCS7_NOCHAIN: c_int = 0x8;
+pub const PKCS7_NOINTERN: c_int = 0x10;
+pub const PKCS7_NOVERIFY: c_int = 0x20;
+pub const PKCS7_DETACHED: c_int = 0x40;
+pub const PKCS7_BINARY: c_int = 0x80;
+pub const PKCS7_NOATTR: c_int = 0x100;
+pub const PKCS7_NOSMIMECAP: c_int = 0x200;
+pub const PKCS7_NOOLDMIMETYPE: c_int = 0x400;
+pub const PKCS7_CRLFEOL: c_int = 0x800;
+pub const PKCS7_STREAM: c_int = 0x1000;
+pub const PKCS7_NOCRL: c_int = 0x2000;
+pub const PKCS7_PARTIAL: c_int = 0x4000;
+pub const PKCS7_REUSE_DIGEST: c_int = 0x8000;
+#[cfg(not(any(ossl101, ossl102, libressl)))]
+pub const PKCS7_NO_DUAL_CONTENT: c_int = 0x10000;
diff --git a/vendor/openssl-sys/src/rsa.rs b/vendor/openssl-sys/src/rsa.rs
new file mode 100644
index 0000000..64107cd
--- /dev/null
+++ b/vendor/openssl-sys/src/rsa.rs
@@ -0,0 +1,101 @@
+use libc::*;
+use std::ptr;
+
+use super::super::*;
+
+pub const RSA_F4: c_long = 0x10001;
+
+cfg_if! {
+    if #[cfg(not(ossl300))] {
+        pub unsafe fn EVP_PKEY_CTX_set_rsa_padding(ctx: *mut EVP_PKEY_CTX, pad: c_int) -> c_int {
+            EVP_PKEY_CTX_ctrl(
+                ctx,
+                EVP_PKEY_RSA,
+                -1,
+                EVP_PKEY_CTRL_RSA_PADDING,
+                pad,
+                ptr::null_mut(),
+            )
+        }
+        pub unsafe fn EVP_PKEY_CTX_get_rsa_padding(ctx: *mut EVP_PKEY_CTX, ppad: *mut c_int) -> c_int {
+            EVP_PKEY_CTX_ctrl(
+                ctx,
+                EVP_PKEY_RSA,
+                -1,
+                EVP_PKEY_CTRL_GET_RSA_PADDING,
+                0,
+                ppad as *mut c_void,
+            )
+        }
+
+        pub unsafe fn EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx: *mut EVP_PKEY_CTX, len: c_int) -> c_int {
+            EVP_PKEY_CTX_ctrl(
+                ctx,
+                EVP_PKEY_RSA,
+                EVP_PKEY_OP_SIGN | EVP_PKEY_OP_VERIFY,
+                EVP_PKEY_CTRL_RSA_PSS_SALTLEN,
+                len,
+                ptr::null_mut(),
+            )
+        }
+
+        pub unsafe fn EVP_PKEY_CTX_set_rsa_mgf1_md(ctx: *mut EVP_PKEY_CTX, md: *mut EVP_MD) -> c_int {
+            EVP_PKEY_CTX_ctrl(
+                ctx,
+                EVP_PKEY_RSA,
+                EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT,
+                EVP_PKEY_CTRL_RSA_MGF1_MD,
+                0,
+                md as *mut c_void,
+            )
+        }
+    }
+}
+
+#[cfg(any(ossl102, libressl310))]
+pub unsafe fn EVP_PKEY_CTX_set_rsa_oaep_md(ctx: *mut EVP_PKEY_CTX, md: *mut EVP_MD) -> c_int {
+    EVP_PKEY_CTX_ctrl(
+        ctx,
+        EVP_PKEY_RSA,
+        EVP_PKEY_OP_TYPE_CRYPT,
+        EVP_PKEY_CTRL_RSA_OAEP_MD,
+        0,
+        md as *mut c_void,
+    )
+}
+
+#[cfg(any(ossl102, libressl310))]
+pub unsafe fn EVP_PKEY_CTX_set0_rsa_oaep_label(
+    ctx: *mut EVP_PKEY_CTX,
+    label: *mut c_void,
+    len: c_int,
+) -> c_int {
+    EVP_PKEY_CTX_ctrl(
+        ctx,
+        EVP_PKEY_RSA,
+        EVP_PKEY_OP_TYPE_CRYPT,
+        EVP_PKEY_CTRL_RSA_OAEP_LABEL,
+        len,
+        label,
+    )
+}
+
+pub const EVP_PKEY_CTRL_RSA_PADDING: c_int = EVP_PKEY_ALG_CTRL + 1;
+pub const EVP_PKEY_CTRL_RSA_PSS_SALTLEN: c_int = EVP_PKEY_ALG_CTRL + 2;
+
+pub const EVP_PKEY_CTRL_RSA_MGF1_MD: c_int = EVP_PKEY_ALG_CTRL + 5;
+
+pub const EVP_PKEY_CTRL_GET_RSA_PADDING: c_int = EVP_PKEY_ALG_CTRL + 6;
+
+#[cfg(any(ossl102, libressl310))]
+pub const EVP_PKEY_CTRL_RSA_OAEP_MD: c_int = EVP_PKEY_ALG_CTRL + 9;
+#[cfg(any(ossl102, libressl310))]
+pub const EVP_PKEY_CTRL_RSA_OAEP_LABEL: c_int = EVP_PKEY_ALG_CTRL + 10;
+
+pub const RSA_PKCS1_PADDING: c_int = 1;
+#[cfg(not(ossl300))]
+pub const RSA_SSLV23_PADDING: c_int = 2;
+pub const RSA_NO_PADDING: c_int = 3;
+pub const RSA_PKCS1_OAEP_PADDING: c_int = 4;
+pub const RSA_X931_PADDING: c_int = 5;
+pub const RSA_PKCS1_PSS_PADDING: c_int = 6;
diff --git a/vendor/openssl-sys/src/sha.rs b/vendor/openssl-sys/src/sha.rs
new file mode 100644
index 0000000..4ad0c17
--- /dev/null
+++ b/vendor/openssl-sys/src/sha.rs
@@ -0,0 +1,103 @@
+use super::*;
+use libc::*;
+use std::ptr;
+
+#[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))]
+pub const SHA_LBLOCK: c_int = 16;
+
+#[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))]
+pub type SHA_LONG = c_uint;
+
+cfg_if! {
+    if #[cfg(ossl300)] {
+        #[cfg(ossl300)]
+        // Ideally we'd macro define these, but that crashes ctest :(
+        pub unsafe fn SHA1(d: *const c_uchar, n: size_t, md: *mut c_uchar) -> *mut c_uchar {
+            if EVP_Q_digest(
+                ptr::null_mut(),
+                "SHA1\0".as_ptr() as *const c_char,
+                ptr::null(),
+                d as *const c_void,
+                n,
+                md,
+                ptr::null_mut(),
+            ) != 0
+            {
+                md
+            } else {
+                ptr::null_mut()
+            }
+        }
+
+        pub unsafe fn SHA224(d: *const c_uchar, n: size_t, md: *mut c_uchar) -> *mut c_uchar {
+            if EVP_Q_digest(
+                ptr::null_mut(),
+                "SHA224\0".as_ptr() as *const c_char,
+                ptr::null(),
+                d as *const c_void,
+                n,
+                md,
+                ptr::null_mut(),
+            ) != 0 {
+                md
+            } else {
+                ptr::null_mut()
+            }
+        }
+
+        pub unsafe fn SHA256(d: *const c_uchar, n: size_t, md: *mut c_uchar) -> *mut c_uchar {
+            if EVP_Q_digest(
+                ptr::null_mut(),
+                "SHA256\0".as_ptr() as *const c_char,
+                ptr::null(),
+                d as *const c_void,
+                n,
+                md,
+                ptr::null_mut(),
+            ) != 0 {
+                md
+            } else {
+                ptr::null_mut()
+            }
+        }
+    }
+}
+
+#[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))]
+pub type SHA_LONG64 = u64;
+
+cfg_if! {
+    if #[cfg(ossl300)] {
+        pub unsafe fn SHA384(d: *const c_uchar, n: size_t, md: *mut c_uchar) -> *mut c_uchar {
+            if EVP_Q_digest(
+                ptr::null_mut(),
+                "SHA384\0".as_ptr() as *const c_char,
+                ptr::null(),
+                d as *const c_void,
+                n,
+                md,
+                ptr::null_mut(),
+            ) != 0 {
+                md
+            } else {
+                ptr::null_mut()
+            }
+        }
+
+        pub unsafe fn SHA512(d: *const c_uchar, n: size_t, md: *mut c_uchar) -> *mut c_uchar {
+            if EVP_Q_digest(
+                ptr::null_mut(),
+                "SHA512\0".as_ptr() as *const c_char,
+                ptr::null(),
+                d as *const c_void,
+                n,
+                md,
+                ptr::null_mut(),
+            ) != 0 {
+                md
+            } else {
+                ptr::null_mut()
+            }
+        }
+    }
+}
diff --git a/vendor/openssl-sys/src/srtp.rs b/vendor/openssl-sys/src/srtp.rs
new file mode 100644
index 0000000..93c7797
--- /dev/null
+++ b/vendor/openssl-sys/src/srtp.rs
@@ -0,0 +1,14 @@
+use libc::*;
+
+pub const SRTP_AES128_CM_SHA1_80: c_ulong = 0x0001;
+pub const SRTP_AES128_CM_SHA1_32: c_ulong = 0x0002;
+pub const SRTP_AES128_F8_SHA1_80: c_ulong = 0x0003;
+pub const SRTP_AES128_F8_SHA1_32: c_ulong = 0x0004;
+pub const SRTP_NULL_SHA1_80: c_ulong = 0x0005;
+pub const SRTP_NULL_SHA1_32: c_ulong = 0x0006;
+
+/* AEAD SRTP protection profiles from RFC 7714 */
+#[cfg(ossl110)]
+pub const SRTP_AEAD_AES_128_GCM: c_ulong = 0x0007;
+#[cfg(ossl110)]
+pub const SRTP_AEAD_AES_256_GCM: c_ulong = 0x0008;
diff --git a/vendor/openssl-sys/src/ssl.rs b/vendor/openssl-sys/src/ssl.rs
new file mode 100644
index 0000000..e812673
--- /dev/null
+++ b/vendor/openssl-sys/src/ssl.rs
@@ -0,0 +1,631 @@
+use libc::*;
+use std::ptr;
+
+use super::*;
+
+#[cfg(not(ossl110))]
+pub const SSL_MAX_KRB5_PRINCIPAL_LENGTH: c_int = 256;
+
+#[cfg(not(ossl110))]
+pub const SSL_MAX_SSL_SESSION_ID_LENGTH: c_int = 32;
+#[cfg(not(ossl110))]
+pub const SSL_MAX_SID_CTX_LENGTH: c_int = 32;
+
+#[cfg(not(ossl110))]
+pub const SSL_MAX_KEY_ARG_LENGTH: c_int = 8;
+#[cfg(not(ossl110))]
+pub const SSL_MAX_MASTER_KEY_LENGTH: c_int = 48;
+
+pub const SSL_SENT_SHUTDOWN: c_int = 1;
+pub const SSL_RECEIVED_SHUTDOWN: c_int = 2;
+
+pub const SSL_FILETYPE_PEM: c_int = X509_FILETYPE_PEM;
+pub const SSL_FILETYPE_ASN1: c_int = X509_FILETYPE_ASN1;
+
+#[cfg(ossl111)]
+pub const SSL_EXT_TLS_ONLY: c_uint = 0x0001;
+/* This extension is only allowed in DTLS */
+#[cfg(ossl111)]
+pub const SSL_EXT_DTLS_ONLY: c_uint = 0x0002;
+/* Some extensions may be allowed in DTLS but we don't implement them for it */
+#[cfg(ossl111)]
+pub const SSL_EXT_TLS_IMPLEMENTATION_ONLY: c_uint = 0x0004;
+/* Most extensions are not defined for SSLv3 but EXT_TYPE_renegotiate is */
+#[cfg(ossl111)]
+pub const SSL_EXT_SSL3_ALLOWED: c_uint = 0x0008;
+/* Extension is only defined for TLS1.2 and below */
+#[cfg(ossl111)]
+pub const SSL_EXT_TLS1_2_AND_BELOW_ONLY: c_uint = 0x0010;
+/* Extension is only defined for TLS1.3 and above */
+#[cfg(ossl111)]
+pub const SSL_EXT_TLS1_3_ONLY: c_uint = 0x0020;
+/* Ignore this extension during parsing if we are resuming */
+#[cfg(ossl111)]
+pub const SSL_EXT_IGNORE_ON_RESUMPTION: c_uint = 0x0040;
+#[cfg(ossl111)]
+pub const SSL_EXT_CLIENT_HELLO: c_uint = 0x0080;
+/* Really means TLS1.2 or below */
+#[cfg(ossl111)]
+pub const SSL_EXT_TLS1_2_SERVER_HELLO: c_uint = 0x0100;
+#[cfg(ossl111)]
+pub const SSL_EXT_TLS1_3_SERVER_HELLO: c_uint = 0x0200;
+#[cfg(ossl111)]
+pub const SSL_EXT_TLS1_3_ENCRYPTED_EXTENSIONS: c_uint = 0x0400;
+#[cfg(ossl111)]
+pub const SSL_EXT_TLS1_3_HELLO_RETRY_REQUEST: c_uint = 0x0800;
+#[cfg(ossl111)]
+pub const SSL_EXT_TLS1_3_CERTIFICATE: c_uint = 0x1000;
+#[cfg(ossl111)]
+pub const SSL_EXT_TLS1_3_NEW_SESSION_TICKET: c_uint = 0x2000;
+#[cfg(ossl111)]
+pub const SSL_EXT_TLS1_3_CERTIFICATE_REQUEST: c_uint = 0x4000;
+
+cfg_if! {
+    if #[cfg(ossl300)] {
+        macro_rules! ssl_op_type {
+            () => {u64};
+        }
+    } else {
+        macro_rules! ssl_op_type {
+            () => {c_ulong};
+        }
+    }
+}
+
+pub const SSL_OP_LEGACY_SERVER_CONNECT: ssl_op_type!() = 0x00000004;
+cfg_if! {
+    if #[cfg(libressl261)] {
+        pub const SSL_OP_TLSEXT_PADDING: ssl_op_type!() = 0x0;
+    } else if #[cfg(any(ossl102, libressl))] {
+        pub const SSL_OP_TLSEXT_PADDING: ssl_op_type!() = 0x10;
+    }
+}
+#[cfg(ossl101)]
+pub const SSL_OP_SAFARI_ECDHE_ECDSA_BUG: ssl_op_type!() = 0x00000040;
+
+pub const SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS: ssl_op_type!() = 0x00000800;
+
+pub const SSL_OP_NO_QUERY_MTU: ssl_op_type!() = 0x00001000;
+pub const SSL_OP_COOKIE_EXCHANGE: ssl_op_type!() = 0x00002000;
+pub const SSL_OP_NO_TICKET: ssl_op_type!() = 0x00004000;
+cfg_if! {
+    if #[cfg(ossl101)] {
+        pub const SSL_OP_CISCO_ANYCONNECT: ssl_op_type!() = 0x00008000;
+    } else {
+        pub const SSL_OP_CISCO_ANYCONNECT: ssl_op_type!() = 0x0;
+    }
+}
+
+pub const SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION: ssl_op_type!() = 0x00010000;
+cfg_if! {
+    if #[cfg(ossl101)] {
+        pub const SSL_OP_NO_COMPRESSION: ssl_op_type!() = 0x00020000;
+        pub const SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION: ssl_op_type!() = 0x00040000;
+    } else {
+        pub const SSL_OP_NO_COMPRESSION: ssl_op_type!() = 0x0;
+        pub const SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION: ssl_op_type!() = 0x0;
+    }
+}
+
+#[cfg(ossl111)]
+pub const SSL_OP_ENABLE_MIDDLEBOX_COMPAT: ssl_op_type!() = 0x00100000;
+#[cfg(ossl111)]
+pub const SSL_OP_PRIORITIZE_CHACHA: ssl_op_type!() = 0x00200000;
+
+pub const SSL_OP_CIPHER_SERVER_PREFERENCE: ssl_op_type!() = 0x00400000;
+cfg_if! {
+    if #[cfg(libressl280)] {
+        pub const SSL_OP_TLS_ROLLBACK_BUG: ssl_op_type!() = 0;
+    } else {
+        pub const SSL_OP_TLS_ROLLBACK_BUG: ssl_op_type!() = 0x00800000;
+    }
+}
+
+cfg_if! {
+    if #[cfg(ossl101)] {
+        pub const SSL_OP_NO_SSLv3: ssl_op_type!() = 0x02000000;
+    } else {
+        pub const SSL_OP_NO_SSLv3: ssl_op_type!() = 0x0;
+    }
+}
+pub const SSL_OP_NO_TLSv1_1: ssl_op_type!() = 0x10000000;
+pub const SSL_OP_NO_TLSv1_2: ssl_op_type!() = 0x08000000;
+
+pub const SSL_OP_NO_TLSv1: ssl_op_type!() = 0x04000000;
+cfg_if! {
+    if #[cfg(ossl102)] {
+        pub const SSL_OP_NO_DTLSv1: ssl_op_type!() = 0x04000000;
+        pub const SSL_OP_NO_DTLSv1_2: ssl_op_type!() = 0x08000000;
+    } else if #[cfg(libressl332)] {
+        pub const SSL_OP_NO_DTLSv1: ssl_op_type!() = 0x40000000;
+        pub const SSL_OP_NO_DTLSv1_2: ssl_op_type!() = 0x80000000;
+    }
+}
+#[cfg(any(ossl111, libressl340))]
+pub const SSL_OP_NO_TLSv1_3: ssl_op_type!() = 0x20000000;
+
+#[cfg(ossl110h)]
+pub const SSL_OP_NO_RENEGOTIATION: ssl_op_type!() = 0x40000000;
+
+cfg_if! {
+    if #[cfg(ossl111)] {
+        pub const SSL_OP_NO_SSL_MASK: ssl_op_type!() = SSL_OP_NO_SSLv2
+            | SSL_OP_NO_SSLv3
+            | SSL_OP_NO_TLSv1
+            | SSL_OP_NO_TLSv1_1
+            | SSL_OP_NO_TLSv1_2
+            | SSL_OP_NO_TLSv1_3;
+    } else if #[cfg(ossl102)] {
+        pub const SSL_OP_NO_SSL_MASK: ssl_op_type!() =
+            SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | SSL_OP_NO_TLSv1 | SSL_OP_NO_TLSv1_1 | SSL_OP_NO_TLSv1_2;
+    }
+}
+
+cfg_if! {
+    if #[cfg(libressl261)] {
+        pub const SSL_OP_CRYPTOPRO_TLSEXT_BUG: ssl_op_type!() = 0x0;
+    } else {
+        pub const SSL_OP_CRYPTOPRO_TLSEXT_BUG: ssl_op_type!() = 0x80000000;
+    }
+}
+
+cfg_if! {
+    if #[cfg(ossl300)] {
+        pub const SSL_OP_ALL: ssl_op_type!() = SSL_OP_CRYPTOPRO_TLSEXT_BUG
+            | SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
+            | SSL_OP_TLSEXT_PADDING
+            | SSL_OP_SAFARI_ECDHE_ECDSA_BUG;
+    } else if #[cfg(ossl110f)] {
+        pub const SSL_OP_ALL: ssl_op_type!() = SSL_OP_CRYPTOPRO_TLSEXT_BUG
+            | SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
+            | SSL_OP_LEGACY_SERVER_CONNECT
+            | SSL_OP_TLSEXT_PADDING
+            | SSL_OP_SAFARI_ECDHE_ECDSA_BUG;
+    } else if #[cfg(libressl261)] {
+        pub const SSL_OP_ALL: ssl_op_type!() = 0x4;
+    } else if #[cfg(libressl)] {
+        pub const SSL_OP_ALL: ssl_op_type!() = 0x80000014;
+    } else {
+        pub const SSL_OP_ALL: ssl_op_type!() = 0x80000BFF;
+    }
+}
+
+cfg_if! {
+    if #[cfg(ossl110)] {
+        pub const SSL_OP_MICROSOFT_SESS_ID_BUG: ssl_op_type!() = 0x00000000;
+        pub const SSL_OP_NETSCAPE_CHALLENGE_BUG: ssl_op_type!() = 0x00000000;
+        pub const SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG: ssl_op_type!() = 0x00000000;
+        pub const SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER: ssl_op_type!() = 0x00000000;
+        pub const SSL_OP_SSLEAY_080_CLIENT_DH_BUG: ssl_op_type!() = 0x00000000;
+        pub const SSL_OP_TLS_D5_BUG: ssl_op_type!() = 0x00000000;
+        pub const SSL_OP_TLS_BLOCK_PADDING_BUG: ssl_op_type!() = 0x00000000;
+        pub const SSL_OP_SINGLE_ECDH_USE: ssl_op_type!() = 0x00000000;
+        pub const SSL_OP_SINGLE_DH_USE: ssl_op_type!() = 0x00000000;
+        pub const SSL_OP_NO_SSLv2: ssl_op_type!() = 0x00000000;
+    } else if #[cfg(ossl101)] {
+        pub const SSL_OP_MICROSOFT_SESS_ID_BUG: ssl_op_type!() = 0x00000001;
+        pub const SSL_OP_NETSCAPE_CHALLENGE_BUG: ssl_op_type!() = 0x00000002;
+        pub const SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG: ssl_op_type!() = 0x00000008;
+        pub const SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER: ssl_op_type!() = 0x00000020;
+        pub const SSL_OP_SSLEAY_080_CLIENT_DH_BUG: ssl_op_type!() = 0x00000080;
+        pub const SSL_OP_TLS_D5_BUG: ssl_op_type!() = 0x00000100;
+        pub const SSL_OP_TLS_BLOCK_PADDING_BUG: ssl_op_type!() = 0x00000200;
+        pub const SSL_OP_SINGLE_ECDH_USE: ssl_op_type!() = 0x00080000;
+        pub const SSL_OP_SINGLE_DH_USE: ssl_op_type!() = 0x00100000;
+        pub const SSL_OP_NO_SSLv2: ssl_op_type!() = 0x01000000;
+    } else {
+        pub const SSL_OP_MICROSOFT_SESS_ID_BUG: ssl_op_type!() = 0x0;
+        pub const SSL_OP_NETSCAPE_CHALLENGE_BUG: ssl_op_type!() = 0x0;
+        pub const SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG: ssl_op_type!() = 0x0;
+        pub const SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER: ssl_op_type!() = 0x0;
+        pub const SSL_OP_SSLEAY_080_CLIENT_DH_BUG: ssl_op_type!() = 0x0;
+        pub const SSL_OP_TLS_D5_BUG: ssl_op_type!() = 0x0;
+        pub const SSL_OP_TLS_BLOCK_PADDING_BUG: ssl_op_type!() = 0x0;
+        #[cfg(libressl261)]
+        pub const SSL_OP_SINGLE_ECDH_USE: ssl_op_type!() = 0x0;
+        #[cfg(not(libressl261))]
+        pub const SSL_OP_SINGLE_ECDH_USE: ssl_op_type!() = 0x00080000;
+        pub const SSL_OP_SINGLE_DH_USE: ssl_op_type!() = 0x00100000;
+        pub const SSL_OP_NO_SSLv2: ssl_op_type!() = 0x0;
+    }
+}
+
+pub const SSL_MODE_ENABLE_PARTIAL_WRITE: c_long = 0x1;
+pub const SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER: c_long = 0x2;
+pub const SSL_MODE_AUTO_RETRY: c_long = 0x4;
+pub const SSL_MODE_NO_AUTO_CHAIN: c_long = 0x8;
+pub const SSL_MODE_RELEASE_BUFFERS: c_long = 0x10;
+#[cfg(ossl101)]
+pub const SSL_MODE_SEND_CLIENTHELLO_TIME: c_long = 0x20;
+#[cfg(ossl101)]
+pub const SSL_MODE_SEND_SERVERHELLO_TIME: c_long = 0x40;
+#[cfg(ossl101)]
+pub const SSL_MODE_SEND_FALLBACK_SCSV: c_long = 0x80;
+
+pub unsafe fn SSL_CTX_set_mode(ctx: *mut SSL_CTX, op: c_long) -> c_long {
+    SSL_CTX_ctrl(ctx, SSL_CTRL_MODE, op, ptr::null_mut())
+}
+
+#[cfg(ossl111)]
+pub const SSL_COOKIE_LENGTH: c_int = 4096;
+
+cfg_if! {
+    if #[cfg(not(ossl110))] {
+        pub unsafe fn SSL_CTX_get_options(ctx: *const SSL_CTX) -> c_ulong {
+            SSL_CTX_ctrl(ctx as *mut _, SSL_CTRL_OPTIONS, 0, ptr::null_mut()) as c_ulong
+        }
+
+        pub unsafe fn SSL_CTX_set_options(ctx: *const SSL_CTX, op: c_ulong) -> c_ulong {
+            SSL_CTX_ctrl(
+                ctx as *mut _,
+                SSL_CTRL_OPTIONS,
+                op as c_long,
+                ptr::null_mut(),
+            ) as c_ulong
+        }
+
+        pub unsafe fn SSL_CTX_clear_options(ctx: *const SSL_CTX, op: c_ulong) -> c_ulong {
+            SSL_CTX_ctrl(
+                ctx as *mut _,
+                SSL_CTRL_CLEAR_OPTIONS,
+                op as c_long,
+                ptr::null_mut(),
+            ) as c_ulong
+        }
+    }
+}
+
+pub unsafe fn SSL_set_mtu(ssl: *mut SSL, mtu: c_long) -> c_long {
+    SSL_ctrl(ssl, SSL_CTRL_SET_MTU, mtu, ptr::null_mut())
+}
+
+#[cfg(ossl110)]
+pub unsafe fn SSL_get_extms_support(ssl: *mut SSL) -> c_long {
+    SSL_ctrl(ssl, SSL_CTRL_GET_EXTMS_SUPPORT, 0, ptr::null_mut())
+}
+
+pub const SSL_SESS_CACHE_OFF: c_long = 0x0;
+pub const SSL_SESS_CACHE_CLIENT: c_long = 0x1;
+pub const SSL_SESS_CACHE_SERVER: c_long = 0x2;
+pub const SSL_SESS_CACHE_BOTH: c_long = SSL_SESS_CACHE_CLIENT | SSL_SESS_CACHE_SERVER;
+pub const SSL_SESS_CACHE_NO_AUTO_CLEAR: c_long = 0x80;
+pub const SSL_SESS_CACHE_NO_INTERNAL_LOOKUP: c_long = 0x100;
+pub const SSL_SESS_CACHE_NO_INTERNAL_STORE: c_long = 0x200;
+pub const SSL_SESS_CACHE_NO_INTERNAL: c_long =
+    SSL_SESS_CACHE_NO_INTERNAL_LOOKUP | SSL_SESS_CACHE_NO_INTERNAL_STORE;
+
+pub const OPENSSL_NPN_UNSUPPORTED: c_int = 0;
+pub const OPENSSL_NPN_NEGOTIATED: c_int = 1;
+pub const OPENSSL_NPN_NO_OVERLAP: c_int = 2;
+
+pub const SSL_AD_ILLEGAL_PARAMETER: c_int = SSL3_AD_ILLEGAL_PARAMETER;
+pub const SSL_AD_DECODE_ERROR: c_int = TLS1_AD_DECODE_ERROR;
+pub const SSL_AD_UNRECOGNIZED_NAME: c_int = TLS1_AD_UNRECOGNIZED_NAME;
+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;
+#[cfg(ossl111)]
+pub const SSL_ERROR_WANT_CLIENT_HELLO_CB: c_int = 11;
+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 SSL_CTRL_SET_TMP_DH: c_int = 3;
+pub const SSL_CTRL_SET_TMP_ECDH: c_int = 4;
+#[cfg(any(libressl, all(ossl101, not(ossl110))))]
+pub const SSL_CTRL_GET_SESSION_REUSED: c_int = 8;
+pub const SSL_CTRL_EXTRA_CHAIN_CERT: c_int = 14;
+pub const SSL_CTRL_SET_MTU: c_int = 17;
+#[cfg(any(libressl, all(ossl101, not(ossl110))))]
+pub const SSL_CTRL_OPTIONS: c_int = 32;
+pub const SSL_CTRL_MODE: c_int = 33;
+pub const SSL_CTRL_SET_READ_AHEAD: c_int = 41;
+pub const SSL_CTRL_SET_SESS_CACHE_SIZE: c_int = 42;
+pub const SSL_CTRL_GET_SESS_CACHE_SIZE: c_int = 43;
+pub const SSL_CTRL_SET_SESS_CACHE_MODE: c_int = 44;
+pub const SSL_CTRL_SET_TLSEXT_SERVERNAME_CB: c_int = 53;
+pub const SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG: c_int = 54;
+pub const SSL_CTRL_SET_TLSEXT_HOSTNAME: c_int = 55;
+pub const SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB: c_int = 63;
+pub const SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB_ARG: c_int = 64;
+pub const SSL_CTRL_SET_TLSEXT_STATUS_REQ_TYPE: c_int = 65;
+pub const SSL_CTRL_GET_TLSEXT_STATUS_REQ_OCSP_RESP: c_int = 70;
+pub const SSL_CTRL_SET_TLSEXT_STATUS_REQ_OCSP_RESP: c_int = 71;
+#[cfg(any(libressl, all(ossl101, not(ossl110))))]
+pub const SSL_CTRL_CLEAR_OPTIONS: c_int = 77;
+pub const SSL_CTRL_GET_EXTRA_CHAIN_CERTS: c_int = 82;
+#[cfg(ossl102)]
+pub const SSL_CTRL_CHAIN_CERT: c_int = 89;
+#[cfg(any(ossl111, libressl252))]
+pub const SSL_CTRL_SET_GROUPS_LIST: c_int = 92;
+#[cfg(any(libressl, all(ossl102, not(ossl110))))]
+pub const SSL_CTRL_SET_ECDH_AUTO: c_int = 94;
+#[cfg(ossl102)]
+pub const SSL_CTRL_SET_SIGALGS_LIST: c_int = 98;
+#[cfg(ossl102)]
+pub const SSL_CTRL_SET_VERIFY_CERT_STORE: c_int = 106;
+#[cfg(ossl110)]
+pub const SSL_CTRL_GET_EXTMS_SUPPORT: c_int = 122;
+#[cfg(any(ossl110, libressl261))]
+pub const SSL_CTRL_SET_MIN_PROTO_VERSION: c_int = 123;
+#[cfg(any(ossl110, libressl261))]
+pub const SSL_CTRL_SET_MAX_PROTO_VERSION: c_int = 124;
+#[cfg(any(ossl110g, libressl270))]
+pub const SSL_CTRL_GET_MIN_PROTO_VERSION: c_int = 130;
+#[cfg(any(ossl110g, libressl270))]
+pub const SSL_CTRL_GET_MAX_PROTO_VERSION: c_int = 131;
+
+pub unsafe fn SSL_CTX_set_tmp_dh(ctx: *mut SSL_CTX, dh: *mut DH) -> c_long {
+    SSL_CTX_ctrl(ctx, SSL_CTRL_SET_TMP_DH, 0, dh as *mut c_void)
+}
+
+pub unsafe fn SSL_CTX_set_tmp_ecdh(ctx: *mut SSL_CTX, key: *mut EC_KEY) -> c_long {
+    SSL_CTX_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH, 0, key as *mut c_void)
+}
+
+pub unsafe fn SSL_set_tmp_dh(ssl: *mut SSL, dh: *mut DH) -> c_long {
+    SSL_ctrl(ssl, SSL_CTRL_SET_TMP_DH, 0, dh as *mut c_void)
+}
+
+pub unsafe fn SSL_set_tmp_ecdh(ssl: *mut SSL, key: *mut EC_KEY) -> c_long {
+    SSL_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH, 0, key as *mut c_void)
+}
+
+pub unsafe fn SSL_CTX_add_extra_chain_cert(ctx: *mut SSL_CTX, x509: *mut X509) -> c_long {
+    SSL_CTX_ctrl(ctx, SSL_CTRL_EXTRA_CHAIN_CERT, 0, x509 as *mut c_void)
+}
+
+pub unsafe fn SSL_CTX_get_extra_chain_certs(
+    ctx: *mut SSL_CTX,
+    chain: *mut *mut stack_st_X509,
+) -> c_long {
+    SSL_CTX_ctrl(ctx, SSL_CTRL_GET_EXTRA_CHAIN_CERTS, 0, chain as *mut c_void)
+}
+
+#[cfg(ossl102)]
+pub unsafe fn SSL_CTX_set0_verify_cert_store(ctx: *mut SSL_CTX, st: *mut X509_STORE) -> c_long {
+    SSL_CTX_ctrl(ctx, SSL_CTRL_SET_VERIFY_CERT_STORE, 0, st as *mut c_void)
+}
+
+#[cfg(ossl102)]
+pub unsafe fn SSL_set0_verify_cert_store(ssl: *mut SSL, st: *mut X509_STORE) -> c_long {
+    SSL_ctrl(ssl, SSL_CTRL_SET_VERIFY_CERT_STORE, 0, st as *mut c_void)
+}
+
+cfg_if! {
+    if #[cfg(ossl111)] {
+        pub unsafe fn SSL_CTX_set1_groups_list(ctx: *mut SSL_CTX, s: *const c_char) -> c_long {
+            SSL_CTX_ctrl(
+                ctx,
+                SSL_CTRL_SET_GROUPS_LIST,
+                0,
+                s as *const c_void as *mut c_void,
+            )
+        }
+    } else if #[cfg(libressl251)] {
+        extern "C" {
+            pub fn SSL_CTX_set1_groups_list(ctx: *mut SSL_CTX, s: *const c_char) -> c_int;
+        }
+    }
+}
+
+#[cfg(ossl102)]
+pub unsafe fn SSL_add0_chain_cert(ssl: *mut SSL, ptr: *mut X509) -> c_long {
+    SSL_ctrl(ssl, SSL_CTRL_CHAIN_CERT, 0, ptr as *mut c_void)
+}
+
+#[cfg(ossl102)]
+pub unsafe fn SSL_CTX_set1_sigalgs_list(ctx: *mut SSL_CTX, s: *const c_char) -> c_long {
+    SSL_CTX_ctrl(
+        ctx,
+        SSL_CTRL_SET_SIGALGS_LIST,
+        0,
+        s as *const c_void as *mut c_void,
+    )
+}
+
+#[cfg(any(libressl, all(ossl102, not(ossl110))))]
+pub unsafe fn SSL_CTX_set_ecdh_auto(ctx: *mut SSL_CTX, onoff: c_int) -> c_int {
+    SSL_CTX_ctrl(
+        ctx,
+        SSL_CTRL_SET_ECDH_AUTO,
+        onoff as c_long,
+        ptr::null_mut(),
+    ) as c_int
+}
+
+#[cfg(any(libressl, all(ossl102, not(ossl110))))]
+pub unsafe fn SSL_set_ecdh_auto(ssl: *mut SSL, onoff: c_int) -> c_int {
+    SSL_ctrl(
+        ssl,
+        SSL_CTRL_SET_ECDH_AUTO,
+        onoff as c_long,
+        ptr::null_mut(),
+    ) as c_int
+}
+
+cfg_if! {
+    if #[cfg(ossl110)] {
+        pub unsafe fn SSL_CTX_set_min_proto_version(ctx: *mut SSL_CTX, version: c_int) -> c_int {
+            SSL_CTX_ctrl(
+                ctx,
+                SSL_CTRL_SET_MIN_PROTO_VERSION,
+                version as c_long,
+                ptr::null_mut(),
+            ) as c_int
+        }
+
+        pub unsafe fn SSL_CTX_set_max_proto_version(ctx: *mut SSL_CTX, version: c_int) -> c_int {
+            SSL_CTX_ctrl(
+                ctx,
+                SSL_CTRL_SET_MAX_PROTO_VERSION,
+                version as c_long,
+                ptr::null_mut(),
+            ) as c_int
+        }
+
+        pub unsafe fn SSL_set_min_proto_version(s: *mut SSL, version: c_int) -> c_int {
+            SSL_ctrl(
+                s,
+                SSL_CTRL_SET_MIN_PROTO_VERSION,
+                version as c_long,
+                ptr::null_mut(),
+            ) as c_int
+        }
+
+        pub unsafe fn SSL_set_max_proto_version(s: *mut SSL, version: c_int) -> c_int {
+            SSL_ctrl(
+                s,
+                SSL_CTRL_SET_MAX_PROTO_VERSION,
+                version as c_long,
+                ptr::null_mut(),
+            ) as c_int
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(ossl110g)] {
+        pub unsafe fn SSL_CTX_get_min_proto_version(ctx: *mut SSL_CTX) -> c_int {
+            SSL_CTX_ctrl(ctx, SSL_CTRL_GET_MIN_PROTO_VERSION, 0, ptr::null_mut()) as c_int
+        }
+
+        pub unsafe fn SSL_CTX_get_max_proto_version(ctx: *mut SSL_CTX) -> c_int {
+            SSL_CTX_ctrl(ctx, SSL_CTRL_GET_MAX_PROTO_VERSION, 0, ptr::null_mut()) as c_int
+        }
+        pub unsafe fn SSL_get_min_proto_version(s: *mut SSL) -> c_int {
+            SSL_ctrl(s, SSL_CTRL_GET_MIN_PROTO_VERSION, 0, ptr::null_mut()) as c_int
+        }
+        pub unsafe fn SSL_get_max_proto_version(s: *mut SSL) -> c_int {
+            SSL_ctrl(s, SSL_CTRL_GET_MAX_PROTO_VERSION, 0, ptr::null_mut()) as c_int
+        }
+    }
+}
+
+#[cfg(ossl111)]
+pub const SSL_CLIENT_HELLO_SUCCESS: c_int = 1;
+#[cfg(ossl111)]
+pub const SSL_CLIENT_HELLO_ERROR: c_int = 0;
+#[cfg(ossl111)]
+pub const SSL_CLIENT_HELLO_RETRY: c_int = -1;
+
+#[cfg(any(ossl111, libressl340))]
+pub const SSL_READ_EARLY_DATA_ERROR: c_int = 0;
+#[cfg(any(ossl111, libressl340))]
+pub const SSL_READ_EARLY_DATA_SUCCESS: c_int = 1;
+#[cfg(any(ossl111, libressl340))]
+pub const SSL_READ_EARLY_DATA_FINISH: c_int = 2;
+
+cfg_if! {
+    if #[cfg(ossl110)] {
+        pub unsafe fn SSL_get_ex_new_index(
+            l: c_long,
+            p: *mut c_void,
+            newf: Option<CRYPTO_EX_new>,
+            dupf: Option<CRYPTO_EX_dup>,
+            freef: Option<CRYPTO_EX_free>,
+        ) -> c_int {
+            CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, l, p, newf, dupf, freef)
+        }
+    }
+}
+cfg_if! {
+    if #[cfg(ossl110)] {
+        pub unsafe fn SSL_CTX_get_ex_new_index(
+            l: c_long,
+            p: *mut c_void,
+            newf: Option<CRYPTO_EX_new>,
+            dupf: Option<CRYPTO_EX_dup>,
+            freef: Option<CRYPTO_EX_free>,
+        ) -> c_int {
+            CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, l, p, newf, dupf, freef)
+        }
+    }
+}
+
+pub unsafe fn SSL_CTX_sess_set_cache_size(ctx: *mut SSL_CTX, t: c_long) -> c_long {
+    SSL_CTX_ctrl(ctx, SSL_CTRL_SET_SESS_CACHE_SIZE, t, ptr::null_mut())
+}
+
+pub unsafe fn SSL_CTX_sess_get_cache_size(ctx: *mut SSL_CTX) -> c_long {
+    SSL_CTX_ctrl(ctx, SSL_CTRL_GET_SESS_CACHE_SIZE, 0, ptr::null_mut())
+}
+
+pub unsafe fn SSL_CTX_set_session_cache_mode(ctx: *mut SSL_CTX, m: c_long) -> c_long {
+    SSL_CTX_ctrl(ctx, SSL_CTRL_SET_SESS_CACHE_MODE, m, ptr::null_mut())
+}
+
+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())
+}
+
+#[allow(clashing_extern_declarations)]
+extern "C" {
+    #[deprecated(note = "use SSL_CTX_set_tmp_dh_callback__fixed_rust instead")]
+    pub fn SSL_CTX_set_tmp_dh_callback(
+        ctx: *mut SSL_CTX,
+        dh: unsafe extern "C" fn(ssl: *mut SSL, is_export: c_int, keylength: c_int) -> *mut DH,
+    );
+    #[deprecated(note = "use SSL_set_tmp_dh_callback__fixed_rust instead")]
+    pub fn SSL_set_tmp_dh_callback(
+        ctx: *mut SSL,
+        dh: unsafe extern "C" fn(ssl: *mut SSL, is_export: c_int, keylength: c_int) -> *mut DH,
+    );
+    #[deprecated(note = "use SSL_CTX_set_tmp_ecdh_callback__fixed_rust instead")]
+    #[cfg(not(ossl110))]
+    pub fn SSL_CTX_set_tmp_ecdh_callback(
+        ctx: *mut SSL_CTX,
+        ecdh: unsafe extern "C" fn(
+            ssl: *mut SSL,
+            is_export: c_int,
+            keylength: c_int,
+        ) -> *mut EC_KEY,
+    );
+    #[deprecated(note = "use SSL_set_tmp_ecdh_callback__fixed_rust instead")]
+    #[cfg(not(ossl110))]
+    pub fn SSL_set_tmp_ecdh_callback(
+        ssl: *mut SSL,
+        ecdh: unsafe extern "C" fn(
+            ssl: *mut SSL,
+            is_export: c_int,
+            keylength: c_int,
+        ) -> *mut EC_KEY,
+    );
+
+    #[deprecated(note = "use SSL_CTX_callback_ctrl__fixed_rust instead")]
+    pub fn SSL_CTX_callback_ctrl(
+        ctx: *mut SSL_CTX,
+        cmd: c_int,
+        fp: Option<extern "C" fn()>,
+    ) -> c_long;
+
+    #[deprecated(note = "use SSL_CTX_set_alpn_select_cb__fixed_rust instead")]
+    #[cfg(any(ossl102, libressl261))]
+    pub fn SSL_CTX_set_alpn_select_cb(
+        ssl: *mut SSL_CTX,
+        cb: extern "C" fn(
+            ssl: *mut SSL,
+            out: *mut *const c_uchar,
+            outlen: *mut c_uchar,
+            inbuf: *const c_uchar,
+            inlen: c_uint,
+            arg: *mut c_void,
+        ) -> c_int,
+        arg: *mut c_void,
+    );
+}
+
+#[cfg(not(ossl110))]
+pub unsafe fn SSL_session_reused(ssl: *mut SSL) -> c_int {
+    SSL_ctrl(ssl, SSL_CTRL_GET_SESSION_REUSED, 0, ptr::null_mut()) as c_int
+}
+
+#[cfg(ossl110)]
+pub const OPENSSL_INIT_LOAD_SSL_STRINGS: u64 = 0x00200000;
+#[cfg(ossl111b)]
+pub const OPENSSL_INIT_NO_ATEXIT: u64 = 0x00080000;
diff --git a/vendor/openssl-sys/src/ssl3.rs b/vendor/openssl-sys/src/ssl3.rs
new file mode 100644
index 0000000..822613e
--- /dev/null
+++ b/vendor/openssl-sys/src/ssl3.rs
@@ -0,0 +1,5 @@
+use libc::*;
+
+pub const SSL3_VERSION: c_int = 0x300;
+
+pub const SSL3_AD_ILLEGAL_PARAMETER: c_int = 47;
diff --git a/vendor/openssl-sys/src/tls1.rs b/vendor/openssl-sys/src/tls1.rs
new file mode 100644
index 0000000..2cb08a9
--- /dev/null
+++ b/vendor/openssl-sys/src/tls1.rs
@@ -0,0 +1,98 @@
+use libc::*;
+use std::mem;
+use std::ptr;
+
+use super::*;
+
+pub const TLS1_VERSION: c_int = 0x301;
+pub const TLS1_1_VERSION: c_int = 0x302;
+pub const TLS1_2_VERSION: c_int = 0x303;
+#[cfg(any(ossl111, libressl340))]
+pub const TLS1_3_VERSION: c_int = 0x304;
+
+pub const DTLS1_VERSION: c_int = 0xFEFF;
+#[cfg(any(ossl102, libressl332))]
+pub const DTLS1_2_VERSION: c_int = 0xFEFD;
+
+pub const TLS1_AD_DECODE_ERROR: c_int = 50;
+pub const TLS1_AD_UNRECOGNIZED_NAME: c_int = 112;
+
+pub const TLSEXT_NAMETYPE_host_name: c_int = 0;
+pub const TLSEXT_STATUSTYPE_ocsp: c_int = 1;
+
+pub unsafe fn SSL_set_tlsext_host_name(s: *mut SSL, name: *mut c_char) -> c_long {
+    SSL_ctrl(
+        s,
+        SSL_CTRL_SET_TLSEXT_HOSTNAME,
+        TLSEXT_NAMETYPE_host_name as c_long,
+        name as *mut c_void,
+    )
+}
+
+pub unsafe fn SSL_set_tlsext_status_type(s: *mut SSL, type_: c_int) -> c_long {
+    SSL_ctrl(
+        s,
+        SSL_CTRL_SET_TLSEXT_STATUS_REQ_TYPE,
+        type_ as c_long,
+        ptr::null_mut(),
+    )
+}
+
+pub unsafe fn SSL_get_tlsext_status_ocsp_resp(ssl: *mut SSL, resp: *mut *mut c_uchar) -> c_long {
+    SSL_ctrl(
+        ssl,
+        SSL_CTRL_GET_TLSEXT_STATUS_REQ_OCSP_RESP,
+        0,
+        resp as *mut c_void,
+    )
+}
+
+pub unsafe fn SSL_set_tlsext_status_ocsp_resp(
+    ssl: *mut SSL,
+    resp: *mut c_uchar,
+    len: c_long,
+) -> c_long {
+    SSL_ctrl(
+        ssl,
+        SSL_CTRL_SET_TLSEXT_STATUS_REQ_OCSP_RESP,
+        len,
+        resp as *mut c_void,
+    )
+}
+
+#[deprecated(note = "use SSL_CTX_set_tlsext_servername_callback__fixed_rust instead")]
+#[allow(deprecated)]
+pub unsafe fn SSL_CTX_set_tlsext_servername_callback(
+    ctx: *mut SSL_CTX,
+    // FIXME should have the right signature
+    cb: Option<extern "C" fn()>,
+) -> c_long {
+    SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TLSEXT_SERVERNAME_CB, cb)
+}
+
+pub unsafe fn SSL_CTX_set_tlsext_servername_callback__fixed_rust(
+    ctx: *mut SSL_CTX,
+    cb: Option<unsafe extern "C" fn(*mut SSL, *mut c_int, *mut c_void) -> c_int>,
+) -> c_long {
+    SSL_CTX_callback_ctrl__fixed_rust(ctx, SSL_CTRL_SET_TLSEXT_SERVERNAME_CB, mem::transmute(cb))
+}
+
+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;
+
+pub unsafe fn SSL_CTX_set_tlsext_servername_arg(ctx: *mut SSL_CTX, arg: *mut c_void) -> c_long {
+    SSL_CTX_ctrl(ctx, SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG, 0, arg)
+}
+
+pub unsafe fn SSL_CTX_set_tlsext_status_cb(
+    ctx: *mut SSL_CTX,
+    cb: Option<unsafe extern "C" fn(*mut SSL, *mut c_void) -> c_int>,
+) -> c_long {
+    SSL_CTX_callback_ctrl__fixed_rust(ctx, SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB, mem::transmute(cb))
+}
+
+pub unsafe fn SSL_CTX_set_tlsext_status_arg(ctx: *mut SSL_CTX, arg: *mut c_void) -> c_long {
+    SSL_CTX_ctrl(ctx, SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB_ARG, 0, arg)
+}
diff --git a/vendor/openssl-sys/src/types.rs b/vendor/openssl-sys/src/types.rs
new file mode 100644
index 0000000..10c8f67
--- /dev/null
+++ b/vendor/openssl-sys/src/types.rs
@@ -0,0 +1,21 @@
+use libc::*;
+
+use super::*;
+
+cfg_if! {
+    if #[cfg(any(ossl110, libressl280))] {
+        pub enum EVP_PKEY {}
+    } else {
+        #[repr(C)]
+        pub struct EVP_PKEY {
+            pub type_: c_int,
+            pub save_type: c_int,
+            pub references: c_int,
+            pub ameth: *const EVP_PKEY_ASN1_METHOD,
+            pub engine: *mut ENGINE,
+            pub pkey: *mut c_void,
+            pub save_parameters: c_int,
+            pub attributes: *mut stack_st_X509_ATTRIBUTE,
+        }
+    }
+}
diff --git a/vendor/openssl-sys/src/x509.rs b/vendor/openssl-sys/src/x509.rs
new file mode 100644
index 0000000..714b06c
--- /dev/null
+++ b/vendor/openssl-sys/src/x509.rs
@@ -0,0 +1,15 @@
+use libc::*;
+
+pub const X509_FILETYPE_PEM: c_int = 1;
+pub const X509_FILETYPE_ASN1: c_int = 2;
+pub const X509_FILETYPE_DEFAULT: c_int = 3;
+
+pub const ASN1_R_HEADER_TOO_LONG: c_int = 123;
+
+cfg_if! {
+    if #[cfg(not(any(ossl110, libressl350)))] {
+        pub const X509_LU_FAIL: c_int = 0;
+        pub const X509_LU_X509: c_int = 1;
+        pub const X509_LU_CRL: c_int = 2;
+    }
+}
diff --git a/vendor/openssl-sys/src/x509_vfy.rs b/vendor/openssl-sys/src/x509_vfy.rs
new file mode 100644
index 0000000..2fa176f
--- /dev/null
+++ b/vendor/openssl-sys/src/x509_vfy.rs
@@ -0,0 +1,149 @@
+use libc::*;
+
+use super::*;
+
+pub const X509_V_OK: c_int = 0;
+#[cfg(ossl102f)]
+pub const X509_V_ERR_UNSPECIFIED: c_int = 1;
+pub const X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT: c_int = 2;
+pub const X509_V_ERR_UNABLE_TO_GET_CRL: c_int = 3;
+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_DECODE_ISSUER_PUBLIC_KEY: c_int = 6;
+pub const X509_V_ERR_CERT_SIGNATURE_FAILURE: c_int = 7;
+pub const X509_V_ERR_CRL_SIGNATURE_FAILURE: c_int = 8;
+pub const X509_V_ERR_CERT_NOT_YET_VALID: c_int = 9;
+pub const X509_V_ERR_CERT_HAS_EXPIRED: c_int = 10;
+pub const X509_V_ERR_CRL_NOT_YET_VALID: c_int = 11;
+pub const X509_V_ERR_CRL_HAS_EXPIRED: c_int = 12;
+pub const X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD: c_int = 13;
+pub const X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD: c_int = 14;
+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_OUT_OF_MEM: c_int = 17;
+pub const X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT: c_int = 18;
+pub const X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN: c_int = 19;
+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_CERT_CHAIN_TOO_LONG: c_int = 22;
+pub const X509_V_ERR_CERT_REVOKED: c_int = 23;
+cfg_if! {
+    if #[cfg(ossl300)] {
+        pub const X509_V_ERR_NO_ISSUER_PUBLIC_KEY: c_int = 24;
+    } else {
+        pub const X509_V_ERR_INVALID_CA: c_int = 24;
+    }
+}
+pub const X509_V_ERR_PATH_LENGTH_EXCEEDED: c_int = 25;
+pub const X509_V_ERR_INVALID_PURPOSE: c_int = 26;
+pub const X509_V_ERR_CERT_UNTRUSTED: c_int = 27;
+pub const X509_V_ERR_CERT_REJECTED: c_int = 28;
+pub const X509_V_ERR_SUBJECT_ISSUER_MISMATCH: c_int = 29;
+pub const X509_V_ERR_AKID_SKID_MISMATCH: c_int = 30;
+pub const X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH: c_int = 31;
+pub const X509_V_ERR_KEYUSAGE_NO_CERTSIGN: c_int = 32;
+pub const X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER: c_int = 33;
+pub const X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION: c_int = 34;
+pub const X509_V_ERR_KEYUSAGE_NO_CRL_SIGN: c_int = 35;
+pub const X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION: c_int = 36;
+pub const X509_V_ERR_INVALID_NON_CA: c_int = 37;
+pub const X509_V_ERR_PROXY_PATH_LENGTH_EXCEEDED: c_int = 38;
+pub const X509_V_ERR_KEYUSAGE_NO_DIGITAL_SIGNATURE: c_int = 39;
+pub const X509_V_ERR_PROXY_CERTIFICATES_NOT_ALLOWED: c_int = 40;
+pub const X509_V_ERR_INVALID_EXTENSION: c_int = 41;
+pub const X509_V_ERR_INVALID_POLICY_EXTENSION: c_int = 42;
+pub const X509_V_ERR_NO_EXPLICIT_POLICY: c_int = 43;
+pub const X509_V_ERR_DIFFERENT_CRL_SCOPE: c_int = 44;
+pub const X509_V_ERR_UNSUPPORTED_EXTENSION_FEATURE: c_int = 45;
+pub const X509_V_ERR_UNNESTED_RESOURCE: c_int = 46;
+pub const X509_V_ERR_PERMITTED_VIOLATION: c_int = 47;
+pub const X509_V_ERR_EXCLUDED_VIOLATION: c_int = 48;
+pub const X509_V_ERR_SUBTREE_MINMAX: c_int = 49;
+pub const X509_V_ERR_APPLICATION_VERIFICATION: c_int = 50;
+pub const X509_V_ERR_UNSUPPORTED_CONSTRAINT_TYPE: c_int = 51;
+pub const X509_V_ERR_UNSUPPORTED_CONSTRAINT_SYNTAX: c_int = 52;
+pub const X509_V_ERR_UNSUPPORTED_NAME_SYNTAX: c_int = 53;
+pub const X509_V_ERR_CRL_PATH_VALIDATION_ERROR: c_int = 54;
+#[cfg(ossl102)]
+pub const X509_V_ERR_SUITE_B_INVALID_VERSION: c_int = 56;
+#[cfg(ossl102)]
+pub const X509_V_ERR_SUITE_B_INVALID_ALGORITHM: c_int = 57;
+#[cfg(ossl102)]
+pub const X509_V_ERR_SUITE_B_INVALID_CURVE: c_int = 58;
+#[cfg(ossl102)]
+pub const X509_V_ERR_SUITE_B_INVALID_SIGNATURE_ALGORITHM: c_int = 59;
+#[cfg(ossl102)]
+pub const X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED: c_int = 60;
+#[cfg(ossl102)]
+pub const X509_V_ERR_SUITE_B_CANNOT_SIGN_P_384_WITH_P_256: c_int = 61;
+#[cfg(ossl102)]
+pub const X509_V_ERR_HOSTNAME_MISMATCH: c_int = 62;
+#[cfg(ossl102)]
+pub const X509_V_ERR_EMAIL_MISMATCH: c_int = 63;
+#[cfg(ossl102)]
+pub const X509_V_ERR_IP_ADDRESS_MISMATCH: c_int = 64;
+cfg_if! {
+    if #[cfg(ossl110)] {
+        pub const X509_V_ERR_DANE_NO_MATCH: c_int = 65;
+        pub const X509_V_ERR_EE_KEY_TOO_SMALL: c_int = 66;
+        pub const X509_V_ERR_CA_KEY_TOO_SMALL: c_int = 67;
+        pub const X509_V_ERR_CA_MD_TOO_WEAK: c_int = 68;
+        pub const X509_V_ERR_INVALID_CALL: c_int = 69;
+        pub const X509_V_ERR_STORE_LOOKUP: c_int = 70;
+        pub const X509_V_ERR_NO_VALID_SCTS: c_int = 71;
+    } else if #[cfg(ossl102h)] {
+        pub const X509_V_ERR_INVALID_CALL: c_int = 65;
+        pub const X509_V_ERR_STORE_LOOKUP: c_int = 66;
+        pub const X509_V_ERR_PROXY_SUBJECT_NAME_VIOLATION: c_int = 67;
+    }
+}
+#[cfg(ossl300)]
+pub const X509_V_ERR_INVALID_CA: c_int = 79;
+
+#[cfg(not(any(ossl110, libressl370)))]
+pub const X509_V_FLAG_CB_ISSUER_CHECK: c_ulong = 0x1;
+#[cfg(any(ossl110, libressl370))]
+pub const X509_V_FLAG_CB_ISSUER_CHECK: c_ulong = 0x0;
+pub const X509_V_FLAG_USE_CHECK_TIME: c_ulong = 0x2;
+pub const X509_V_FLAG_CRL_CHECK: c_ulong = 0x4;
+pub const X509_V_FLAG_CRL_CHECK_ALL: c_ulong = 0x8;
+pub const X509_V_FLAG_IGNORE_CRITICAL: c_ulong = 0x10;
+pub const X509_V_FLAG_X509_STRICT: c_ulong = 0x20;
+pub const X509_V_FLAG_ALLOW_PROXY_CERTS: c_ulong = 0x40;
+pub const X509_V_FLAG_POLICY_CHECK: c_ulong = 0x80;
+pub const X509_V_FLAG_EXPLICIT_POLICY: c_ulong = 0x100;
+pub const X509_V_FLAG_INHIBIT_ANY: c_ulong = 0x200;
+pub const X509_V_FLAG_INHIBIT_MAP: c_ulong = 0x400;
+pub const X509_V_FLAG_NOTIFY_POLICY: c_ulong = 0x800;
+pub const X509_V_FLAG_EXTENDED_CRL_SUPPORT: c_ulong = 0x1000;
+pub const X509_V_FLAG_USE_DELTAS: c_ulong = 0x2000;
+pub const X509_V_FLAG_CHECK_SS_SIGNATURE: c_ulong = 0x4000;
+#[cfg(ossl102)]
+pub const X509_V_FLAG_TRUSTED_FIRST: c_ulong = 0x8000;
+#[cfg(ossl102)]
+pub const X509_V_FLAG_SUITEB_128_LOS_ONLY: c_ulong = 0x10000;
+#[cfg(ossl102)]
+pub const X509_V_FLAG_SUITEB_192_LOS: c_ulong = 0x20000;
+#[cfg(ossl102)]
+pub const X509_V_FLAG_SUITEB_128_LOS: c_ulong = 0x30000;
+#[cfg(ossl102)]
+pub const X509_V_FLAG_PARTIAL_CHAIN: c_ulong = 0x80000;
+#[cfg(ossl110)]
+pub const X509_V_FLAG_NO_ALT_CHAINS: c_ulong = 0x100000;
+#[cfg(ossl110)]
+pub const X509_V_FLAG_NO_CHECK_TIME: c_ulong = 0x200000;
+
+pub unsafe fn X509_LOOKUP_add_dir(
+    ctx: *mut X509_LOOKUP,
+    name: *const c_char,
+    _type: c_int,
+) -> c_int {
+    const X509_L_ADD_DIR: c_int = 2;
+    X509_LOOKUP_ctrl(
+        ctx,
+        X509_L_ADD_DIR,
+        name,
+        _type as c_long,
+        std::ptr::null_mut(),
+    )
+}
diff --git a/vendor/openssl-sys/src/x509v3.rs b/vendor/openssl-sys/src/x509v3.rs
new file mode 100644
index 0000000..d2ff534
--- /dev/null
+++ b/vendor/openssl-sys/src/x509v3.rs
@@ -0,0 +1,104 @@
+use libc::*;
+
+use super::*;
+
+#[repr(C)]
+pub struct GENERAL_NAME {
+    pub type_: c_int,
+    // FIXME should be a union
+    pub d: *mut c_void,
+}
+
+stack!(stack_st_GENERAL_NAME);
+
+pub const GEN_OTHERNAME: c_int = 0;
+pub const GEN_EMAIL: c_int = 1;
+pub const GEN_DNS: c_int = 2;
+pub const GEN_X400: c_int = 3;
+pub const GEN_DIRNAME: c_int = 4;
+pub const GEN_EDIPARTY: c_int = 5;
+pub const GEN_URI: c_int = 6;
+pub const GEN_IPADD: c_int = 7;
+pub const GEN_RID: c_int = 8;
+
+#[cfg(any(ossl102, libressl261))]
+pub const X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT: c_uint = 0x1;
+#[cfg(any(ossl102, libressl261))]
+pub const X509_CHECK_FLAG_NO_WILDCARDS: c_uint = 0x2;
+#[cfg(any(ossl102, libressl261))]
+pub const X509_CHECK_FLAG_NO_PARTIAL_WILDCARDS: c_uint = 0x4;
+#[cfg(any(ossl102, libressl261))]
+pub const X509_CHECK_FLAG_MULTI_LABEL_WILDCARDS: c_uint = 0x8;
+#[cfg(any(ossl102, libressl261))]
+pub const X509_CHECK_FLAG_SINGLE_LABEL_SUBDOMAINS: c_uint = 0x10;
+#[cfg(ossl110)]
+pub const X509_CHECK_FLAG_NEVER_CHECK_SUBJECT: c_uint = 0x20;
+
+pub const X509V3_ADD_DEFAULT: c_ulong = 0;
+pub const X509V3_ADD_APPEND: c_ulong = 1;
+pub const X509V3_ADD_REPLACE: c_ulong = 2;
+pub const X509V3_ADD_REPLACE_EXISTING: c_ulong = 3;
+pub const X509V3_ADD_KEEP_EXISTING: c_ulong = 4;
+pub const X509V3_ADD_DELETE: c_ulong = 5;
+pub const X509V3_ADD_SILENT: c_ulong = 0x10;
+
+pub const EXFLAG_BCONS: u32 = 0x1;
+pub const EXFLAG_KUSAGE: u32 = 0x2;
+pub const EXFLAG_XKUSAGE: u32 = 0x4;
+pub const EXFLAG_NSCERT: u32 = 0x8;
+pub const EXFLAG_CA: u32 = 0x10;
+pub const EXFLAG_SI: u32 = 0x20;
+pub const EXFLAG_V1: u32 = 0x40;
+pub const EXFLAG_INVALID: u32 = 0x80;
+pub const EXFLAG_SET: u32 = 0x100;
+pub const EXFLAG_CRITICAL: u32 = 0x200;
+pub const EXFLAG_PROXY: u32 = 0x400;
+pub const EXFLAG_INVALID_POLICY: u32 = 0x800;
+pub const EXFLAG_FRESHEST: u32 = 0x1000;
+#[cfg(any(ossl102, libressl261))]
+pub const EXFLAG_SS: u32 = 0x2000;
+
+pub const X509v3_KU_DIGITAL_SIGNATURE: u32 = 0x0080;
+pub const X509v3_KU_NON_REPUDIATION: u32 = 0x0040;
+pub const X509v3_KU_KEY_ENCIPHERMENT: u32 = 0x0020;
+pub const X509v3_KU_DATA_ENCIPHERMENT: u32 = 0x0010;
+pub const X509v3_KU_KEY_AGREEMENT: u32 = 0x0008;
+pub const X509v3_KU_KEY_CERT_SIGN: u32 = 0x0004;
+pub const X509v3_KU_CRL_SIGN: u32 = 0x0002;
+pub const X509v3_KU_ENCIPHER_ONLY: u32 = 0x0001;
+pub const X509v3_KU_DECIPHER_ONLY: u32 = 0x8000;
+pub const X509v3_KU_UNDEF: u32 = 0xffff;
+
+pub const XKU_SSL_SERVER: u32 = 0x1;
+pub const XKU_SSL_CLIENT: u32 = 0x2;
+pub const XKU_SMIME: u32 = 0x4;
+pub const XKU_CODE_SIGN: u32 = 0x8;
+pub const XKU_SGC: u32 = 0x10;
+pub const XKU_OCSP_SIGN: u32 = 0x20;
+pub const XKU_TIMESTAMP: u32 = 0x40;
+pub const XKU_DVCS: u32 = 0x80;
+#[cfg(ossl110)]
+pub const XKU_ANYEKU: u32 = 0x100;
+
+pub const X509_PURPOSE_SSL_CLIENT: c_int = 1;
+pub const X509_PURPOSE_SSL_SERVER: c_int = 2;
+pub const X509_PURPOSE_NS_SSL_SERVER: c_int = 3;
+pub const X509_PURPOSE_SMIME_SIGN: c_int = 4;
+pub const X509_PURPOSE_SMIME_ENCRYPT: c_int = 5;
+pub const X509_PURPOSE_CRL_SIGN: c_int = 6;
+pub const X509_PURPOSE_ANY: c_int = 7;
+pub const X509_PURPOSE_OCSP_HELPER: c_int = 8;
+pub const X509_PURPOSE_TIMESTAMP_SIGN: c_int = 9;
+pub const X509_PURPOSE_MIN: c_int = 1;
+pub const X509_PURPOSE_MAX: c_int = 9;
+
+pub const CRL_REASON_UNSPECIFIED: c_int = 0;
+pub const CRL_REASON_KEY_COMPROMISE: c_int = 1;
+pub const CRL_REASON_CA_COMPROMISE: c_int = 2;
+pub const CRL_REASON_AFFILIATION_CHANGED: c_int = 3;
+pub const CRL_REASON_SUPERSEDED: c_int = 4;
+pub const CRL_REASON_CESSATION_OF_OPERATION: c_int = 5;
+pub const CRL_REASON_CERTIFICATE_HOLD: c_int = 6;
+pub const CRL_REASON_REMOVE_FROM_CRL: c_int = 8;
+pub const CRL_REASON_PRIVILEGE_WITHDRAWN: c_int = 9;
+pub const CRL_REASON_AA_COMPROMISE: c_int = 10;