* Creating w32 port for compilation of Alpine. This is intended for old

    machines that cannot be updated. Long story short: Always use the
    command "build wnt" to build Alpine. If that does not work, try
    "build w32", which is for machines that are too old and do not have
    any way to use modern encryption protocols such as TLSv1.2.

    The version of Alpine built in modern machines will be called
    alpine.exe, and the binary built with the port w32 will be called
    alpine32 in the repository. All other binaries can be downloaded from
    the main web site, and they will not have the suffix "32" there.

1 files changed, 807 insertions, 0 deletions

diff --git a/libressl/include32/openssl/engine.h b/libressl/include32/openssl/engine.h
new file mode 100644
index 00000000..30d1bde4
--- /dev/null
+++ b/libressl/include32/openssl/engine.h
@@ -0,0 +1,807 @@
+/* $OpenBSD: engine.h,v 1.31 2015/07/19 22:34:27 doug Exp $ */
+/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
+ * project 2000.
+ */
+/* ====================================================================
+ * Copyright (c) 1999-2004 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+/* ====================================================================
+ * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
+ * ECDH support in OpenSSL originally developed by
+ * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
+ */
+
+#ifndef HEADER_ENGINE_H
+#define HEADER_ENGINE_H
+
+#include <openssl/opensslconf.h>
+
+#ifdef OPENSSL_NO_ENGINE
+#error ENGINE is disabled.
+#endif
+
+#ifndef OPENSSL_NO_DEPRECATED
+#include <openssl/bn.h>
+#ifndef OPENSSL_NO_RSA
+#include <openssl/rsa.h>
+#endif
+#ifndef OPENSSL_NO_DSA
+#include <openssl/dsa.h>
+#endif
+#ifndef OPENSSL_NO_DH
+#include <openssl/dh.h>
+#endif
+#ifndef OPENSSL_NO_ECDH
+#include <openssl/ecdh.h>
+#endif
+#ifndef OPENSSL_NO_ECDSA
+#include <openssl/ecdsa.h>
+#endif
+#include <openssl/ui.h>
+#include <openssl/err.h>
+#endif
+
+#include <openssl/ossl_typ.h>
+
+#include <openssl/x509.h>
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+/* These flags are used to control combinations of algorithm (methods)
+ * by bitwise "OR"ing. */
+#define ENGINE_METHOD_RSA		(unsigned int)0x0001
+#define ENGINE_METHOD_DSA		(unsigned int)0x0002
+#define ENGINE_METHOD_DH		(unsigned int)0x0004
+#define ENGINE_METHOD_RAND		(unsigned int)0x0008
+#define ENGINE_METHOD_ECDH		(unsigned int)0x0010
+#define ENGINE_METHOD_ECDSA		(unsigned int)0x0020
+#define ENGINE_METHOD_CIPHERS		(unsigned int)0x0040
+#define ENGINE_METHOD_DIGESTS		(unsigned int)0x0080
+#define ENGINE_METHOD_STORE		(unsigned int)0x0100
+#define ENGINE_METHOD_PKEY_METHS	(unsigned int)0x0200
+#define ENGINE_METHOD_PKEY_ASN1_METHS	(unsigned int)0x0400
+/* Obvious all-or-nothing cases. */
+#define ENGINE_METHOD_ALL		(unsigned int)0xFFFF
+#define ENGINE_METHOD_NONE		(unsigned int)0x0000
+
+/* This(ese) flag(s) controls behaviour of the ENGINE_TABLE mechanism used
+ * internally to control registration of ENGINE implementations, and can be set
+ * by ENGINE_set_table_flags(). The "NOINIT" flag prevents attempts to
+ * initialise registered ENGINEs if they are not already initialised. */
+#define ENGINE_TABLE_FLAG_NOINIT	(unsigned int)0x0001
+
+/* ENGINE flags that can be set by ENGINE_set_flags(). */
+/* #define ENGINE_FLAGS_MALLOCED	0x0001 */ /* Not used */
+
+/* This flag is for ENGINEs that wish to handle the various 'CMD'-related
+ * control commands on their own. Without this flag, ENGINE_ctrl() handles these
+ * control commands on behalf of the ENGINE using their "cmd_defns" data. */
+#define ENGINE_FLAGS_MANUAL_CMD_CTRL	(int)0x0002
+
+/* This flag is for ENGINEs who return new duplicate structures when found via
+ * "ENGINE_by_id()". When an ENGINE must store state (eg. if ENGINE_ctrl()
+ * commands are called in sequence as part of some stateful process like
+ * key-generation setup and execution), it can set this flag - then each attempt
+ * to obtain the ENGINE will result in it being copied into a new structure.
+ * Normally, ENGINEs don't declare this flag so ENGINE_by_id() just increments
+ * the existing ENGINE's structural reference count. */
+#define ENGINE_FLAGS_BY_ID_COPY		(int)0x0004
+
+/* This flag if for an ENGINE that does not want its methods registered as
+ * part of ENGINE_register_all_complete() for example if the methods are
+ * not usable as default methods.
+ */
+
+#define ENGINE_FLAGS_NO_REGISTER_ALL	(int)0x0008
+
+/* ENGINEs can support their own command types, and these flags are used in
+ * ENGINE_CTRL_GET_CMD_FLAGS to indicate to the caller what kind of input each
+ * command expects. Currently only numeric and string input is supported. If a
+ * control command supports none of the _NUMERIC, _STRING, or _NO_INPUT options,
+ * then it is regarded as an "internal" control command - and not for use in
+ * config setting situations. As such, they're not available to the
+ * ENGINE_ctrl_cmd_string() function, only raw ENGINE_ctrl() access. Changes to
+ * this list of 'command types' should be reflected carefully in
+ * ENGINE_cmd_is_executable() and ENGINE_ctrl_cmd_string(). */
+
+/* accepts a 'long' input value (3rd parameter to ENGINE_ctrl) */
+#define ENGINE_CMD_FLAG_NUMERIC		(unsigned int)0x0001
+/* accepts string input (cast from 'void*' to 'const char *', 4th parameter to
+ * ENGINE_ctrl) */
+#define ENGINE_CMD_FLAG_STRING		(unsigned int)0x0002
+/* Indicates that the control command takes *no* input. Ie. the control command
+ * is unparameterised. */
+#define ENGINE_CMD_FLAG_NO_INPUT	(unsigned int)0x0004
+/* Indicates that the control command is internal. This control command won't
+ * be shown in any output, and is only usable through the ENGINE_ctrl_cmd()
+ * function. */
+#define ENGINE_CMD_FLAG_INTERNAL	(unsigned int)0x0008
+
+/* NB: These 3 control commands are deprecated and should not be used. ENGINEs
+ * relying on these commands should compile conditional support for
+ * compatibility (eg. if these symbols are defined) but should also migrate the
+ * same functionality to their own ENGINE-specific control functions that can be
+ * "discovered" by calling applications. The fact these control commands
+ * wouldn't be "executable" (ie. usable by text-based config) doesn't change the
+ * fact that application code can find and use them without requiring per-ENGINE
+ * hacking. */
+
+/* These flags are used to tell the ctrl function what should be done.
+ * All command numbers are shared between all engines, even if some don't
+ * make sense to some engines.  In such a case, they do nothing but return
+ * the error ENGINE_R_CTRL_COMMAND_NOT_IMPLEMENTED. */
+#define ENGINE_CTRL_SET_LOGSTREAM		1
+#define ENGINE_CTRL_SET_PASSWORD_CALLBACK	2
+#define ENGINE_CTRL_HUP				3 /* Close and reinitialise any
+						     handles/connections etc. */
+#define ENGINE_CTRL_SET_USER_INTERFACE          4 /* Alternative to callback */
+#define ENGINE_CTRL_SET_CALLBACK_DATA           5 /* User-specific data, used
+						     when calling the password
+						     callback and the user
+						     interface */
+#define ENGINE_CTRL_LOAD_CONFIGURATION		6 /* Load a configuration, given
+						     a string that represents a
+						     file name or so */
+#define ENGINE_CTRL_LOAD_SECTION		7 /* Load data from a given
+						     section in the already loaded
+						     configuration */
+
+/* These control commands allow an application to deal with an arbitrary engine
+ * in a dynamic way. Warn: Negative return values indicate errors FOR THESE
+ * COMMANDS because zero is used to indicate 'end-of-list'. Other commands,
+ * including ENGINE-specific command types, return zero for an error.
+ *
+ * An ENGINE can choose to implement these ctrl functions, and can internally
+ * manage things however it chooses - it does so by setting the
+ * ENGINE_FLAGS_MANUAL_CMD_CTRL flag (using ENGINE_set_flags()). Otherwise the
+ * ENGINE_ctrl() code handles this on the ENGINE's behalf using the cmd_defns
+ * data (set using ENGINE_set_cmd_defns()). This means an ENGINE's ctrl()
+ * handler need only implement its own commands - the above "meta" commands will
+ * be taken care of. */
+
+/* Returns non-zero if the supplied ENGINE has a ctrl() handler. If "not", then
+ * all the remaining control commands will return failure, so it is worth
+ * checking this first if the caller is trying to "discover" the engine's
+ * capabilities and doesn't want errors generated unnecessarily. */
+#define ENGINE_CTRL_HAS_CTRL_FUNCTION		10
+/* Returns a positive command number for the first command supported by the
+ * engine. Returns zero if no ctrl commands are supported. */
+#define ENGINE_CTRL_GET_FIRST_CMD_TYPE		11
+/* The 'long' argument specifies a command implemented by the engine, and the
+ * return value is the next command supported, or zero if there are no more. */
+#define ENGINE_CTRL_GET_NEXT_CMD_TYPE		12
+/* The 'void*' argument is a command name (cast from 'const char *'), and the
+ * return value is the command that corresponds to it. */
+#define ENGINE_CTRL_GET_CMD_FROM_NAME		13
+/* The next two allow a command to be converted into its corresponding string
+ * form. In each case, the 'long' argument supplies the command. In the NAME_LEN
+ * case, the return value is the length of the command name (not counting a
+ * trailing EOL). In the NAME case, the 'void*' argument must be a string buffer
+ * large enough, and it will be populated with the name of the command (WITH a
+ * trailing EOL). */
+#define ENGINE_CTRL_GET_NAME_LEN_FROM_CMD	14
+#define ENGINE_CTRL_GET_NAME_FROM_CMD		15
+/* The next two are similar but give a "short description" of a command. */
+#define ENGINE_CTRL_GET_DESC_LEN_FROM_CMD	16
+#define ENGINE_CTRL_GET_DESC_FROM_CMD		17
+/* With this command, the return value is the OR'd combination of
+ * ENGINE_CMD_FLAG_*** values that indicate what kind of input a given
+ * engine-specific ctrl command expects. */
+#define ENGINE_CTRL_GET_CMD_FLAGS		18
+
+/* ENGINE implementations should start the numbering of their own control
+ * commands from this value. (ie. ENGINE_CMD_BASE, ENGINE_CMD_BASE + 1, etc). */
+#define ENGINE_CMD_BASE				200
+
+/* If an ENGINE supports its own specific control commands and wishes the
+ * framework to handle the above 'ENGINE_CMD_***'-manipulation commands on its
+ * behalf, it should supply a null-terminated array of ENGINE_CMD_DEFN entries
+ * to ENGINE_set_cmd_defns(). It should also implement a ctrl() handler that
+ * supports the stated commands (ie. the "cmd_num" entries as described by the
+ * array). NB: The array must be ordered in increasing order of cmd_num.
+ * "null-terminated" means that the last ENGINE_CMD_DEFN element has cmd_num set
+ * to zero and/or cmd_name set to NULL. */
+typedef struct ENGINE_CMD_DEFN_st {
+	unsigned int cmd_num; /* The command number */
+	const char *cmd_name; /* The command name itself */
+	const char *cmd_desc; /* A short description of the command */
+	unsigned int cmd_flags; /* The input the command expects */
+} ENGINE_CMD_DEFN;
+
+/* Generic function pointer */
+typedef int (*ENGINE_GEN_FUNC_PTR)(void);
+/* Generic function pointer taking no arguments */
+typedef int (*ENGINE_GEN_INT_FUNC_PTR)(ENGINE *);
+/* Specific control function pointer */
+typedef int (*ENGINE_CTRL_FUNC_PTR)(ENGINE *, int, long, void *,
+    void (*f)(void));
+/* Generic load_key function pointer */
+typedef EVP_PKEY * (*ENGINE_LOAD_KEY_PTR)(ENGINE *, const char *,
+    UI_METHOD *ui_method, void *callback_data);
+typedef int (*ENGINE_SSL_CLIENT_CERT_PTR)(ENGINE *, SSL *ssl,
+    STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
+    STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data);
+
+/* These callback types are for an ENGINE's handler for cipher and digest logic.
+ * These handlers have these prototypes;
+ *   int foo(ENGINE *e, const EVP_CIPHER **cipher, const int **nids, int nid);
+ *   int foo(ENGINE *e, const EVP_MD **digest, const int **nids, int nid);
+ * Looking at how to implement these handlers in the case of cipher support, if
+ * the framework wants the EVP_CIPHER for 'nid', it will call;
+ *   foo(e, &p_evp_cipher, NULL, nid);    (return zero for failure)
+ * If the framework wants a list of supported 'nid's, it will call;
+ *   foo(e, NULL, &p_nids, 0); (returns number of 'nids' or -1 for error)
+ */
+/* Returns to a pointer to the array of supported cipher 'nid's. If the second
+ * parameter is non-NULL it is set to the size of the returned array. */
+typedef int (*ENGINE_CIPHERS_PTR)(ENGINE *, const EVP_CIPHER **,
+    const int **, int);
+typedef int (*ENGINE_DIGESTS_PTR)(ENGINE *, const EVP_MD **, const int **, int);
+typedef int (*ENGINE_PKEY_METHS_PTR)(ENGINE *, EVP_PKEY_METHOD **,
+    const int **, int);
+typedef int (*ENGINE_PKEY_ASN1_METHS_PTR)(ENGINE *, EVP_PKEY_ASN1_METHOD **,
+    const int **, int);
+
+/* STRUCTURE functions ... all of these functions deal with pointers to ENGINE
+ * structures where the pointers have a "structural reference". This means that
+ * their reference is to allowed access to the structure but it does not imply
+ * that the structure is functional. To simply increment or decrement the
+ * structural reference count, use ENGINE_by_id and ENGINE_free. NB: This is not
+ * required when iterating using ENGINE_get_next as it will automatically
+ * decrement the structural reference count of the "current" ENGINE and
+ * increment the structural reference count of the ENGINE it returns (unless it
+ * is NULL). */
+
+/* Get the first/last "ENGINE" type available. */
+ENGINE *ENGINE_get_first(void);
+ENGINE *ENGINE_get_last(void);
+/* Iterate to the next/previous "ENGINE" type (NULL = end of the list). */
+ENGINE *ENGINE_get_next(ENGINE *e);
+ENGINE *ENGINE_get_prev(ENGINE *e);
+/* Add another "ENGINE" type into the array. */
+int ENGINE_add(ENGINE *e);
+/* Remove an existing "ENGINE" type from the array. */
+int ENGINE_remove(ENGINE *e);
+/* Retrieve an engine from the list by its unique "id" value. */
+ENGINE *ENGINE_by_id(const char *id);
+/* Add all the built-in engines. */
+void ENGINE_load_openssl(void);
+void ENGINE_load_dynamic(void);
+#ifndef OPENSSL_NO_STATIC_ENGINE
+void ENGINE_load_padlock(void);
+#endif
+void ENGINE_load_builtin_engines(void);
+
+/* Get and set global flags (ENGINE_TABLE_FLAG_***) for the implementation
+ * "registry" handling. */
+unsigned int ENGINE_get_table_flags(void);
+void ENGINE_set_table_flags(unsigned int flags);
+
+/* Manage registration of ENGINEs per "table". For each type, there are 3
+ * functions;
+ *   ENGINE_register_***(e) - registers the implementation from 'e' (if it has one)
+ *   ENGINE_unregister_***(e) - unregister the implementation from 'e'
+ *   ENGINE_register_all_***() - call ENGINE_register_***() for each 'e' in the list
+ * Cleanup is automatically registered from each table when required, so
+ * ENGINE_cleanup() will reverse any "register" operations. */
+
+int ENGINE_register_RSA(ENGINE *e);
+void ENGINE_unregister_RSA(ENGINE *e);
+void ENGINE_register_all_RSA(void);
+
+int ENGINE_register_DSA(ENGINE *e);
+void ENGINE_unregister_DSA(ENGINE *e);
+void ENGINE_register_all_DSA(void);
+
+int ENGINE_register_ECDH(ENGINE *e);
+void ENGINE_unregister_ECDH(ENGINE *e);
+void ENGINE_register_all_ECDH(void);
+
+int ENGINE_register_ECDSA(ENGINE *e);
+void ENGINE_unregister_ECDSA(ENGINE *e);
+void ENGINE_register_all_ECDSA(void);
+
+int ENGINE_register_DH(ENGINE *e);
+void ENGINE_unregister_DH(ENGINE *e);
+void ENGINE_register_all_DH(void);
+
+int ENGINE_register_RAND(ENGINE *e);
+void ENGINE_unregister_RAND(ENGINE *e);
+void ENGINE_register_all_RAND(void);
+
+int ENGINE_register_STORE(ENGINE *e);
+void ENGINE_unregister_STORE(ENGINE *e);
+void ENGINE_register_all_STORE(void);
+
+int ENGINE_register_ciphers(ENGINE *e);
+void ENGINE_unregister_ciphers(ENGINE *e);
+void ENGINE_register_all_ciphers(void);
+
+int ENGINE_register_digests(ENGINE *e);
+void ENGINE_unregister_digests(ENGINE *e);
+void ENGINE_register_all_digests(void);
+
+int ENGINE_register_pkey_meths(ENGINE *e);
+void ENGINE_unregister_pkey_meths(ENGINE *e);
+void ENGINE_register_all_pkey_meths(void);
+
+int ENGINE_register_pkey_asn1_meths(ENGINE *e);
+void ENGINE_unregister_pkey_asn1_meths(ENGINE *e);
+void ENGINE_register_all_pkey_asn1_meths(void);
+
+/* These functions register all support from the above categories. Note, use of
+ * these functions can result in static linkage of code your application may not
+ * need. If you only need a subset of functionality, consider using more
+ * selective initialisation. */
+int ENGINE_register_complete(ENGINE *e);
+int ENGINE_register_all_complete(void);
+
+/* Send parametrised control commands to the engine. The possibilities to send
+ * down an integer, a pointer to data or a function pointer are provided. Any of
+ * the parameters may or may not be NULL, depending on the command number. In
+ * actuality, this function only requires a structural (rather than functional)
+ * reference to an engine, but many control commands may require the engine be
+ * functional. The caller should be aware of trying commands that require an
+ * operational ENGINE, and only use functional references in such situations. */
+int ENGINE_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void));
+
+/* This function tests if an ENGINE-specific command is usable as a "setting".
+ * Eg. in an application's config file that gets processed through
+ * ENGINE_ctrl_cmd_string(). If this returns zero, it is not available to
+ * ENGINE_ctrl_cmd_string(), only ENGINE_ctrl(). */
+int ENGINE_cmd_is_executable(ENGINE *e, int cmd);
+
+/* This function works like ENGINE_ctrl() with the exception of taking a
+ * command name instead of a command number, and can handle optional commands.
+ * See the comment on ENGINE_ctrl_cmd_string() for an explanation on how to
+ * use the cmd_name and cmd_optional. */
+int ENGINE_ctrl_cmd(ENGINE *e, const char *cmd_name,
+    long i, void *p, void (*f)(void), int cmd_optional);
+
+/* This function passes a command-name and argument to an ENGINE. The cmd_name
+ * is converted to a command number and the control command is called using
+ * 'arg' as an argument (unless the ENGINE doesn't support such a command, in
+ * which case no control command is called). The command is checked for input
+ * flags, and if necessary the argument will be converted to a numeric value. If
+ * cmd_optional is non-zero, then if the ENGINE doesn't support the given
+ * cmd_name the return value will be success anyway. This function is intended
+ * for applications to use so that users (or config files) can supply
+ * engine-specific config data to the ENGINE at run-time to control behaviour of
+ * specific engines. As such, it shouldn't be used for calling ENGINE_ctrl()
+ * functions that return data, deal with binary data, or that are otherwise
+ * supposed to be used directly through ENGINE_ctrl() in application code. Any
+ * "return" data from an ENGINE_ctrl() operation in this function will be lost -
+ * the return value is interpreted as failure if the return value is zero,
+ * success otherwise, and this function returns a boolean value as a result. In
+ * other words, vendors of 'ENGINE'-enabled devices should write ENGINE
+ * implementations with parameterisations that work in this scheme, so that
+ * compliant ENGINE-based applications can work consistently with the same
+ * configuration for the same ENGINE-enabled devices, across applications. */
+int ENGINE_ctrl_cmd_string(ENGINE *e, const char *cmd_name, const char *arg,
+    int cmd_optional);
+
+/* These functions are useful for manufacturing new ENGINE structures. They
+ * don't address reference counting at all - one uses them to populate an ENGINE
+ * structure with personalised implementations of things prior to using it
+ * directly or adding it to the builtin ENGINE list in OpenSSL. These are also
+ * here so that the ENGINE structure doesn't have to be exposed and break binary
+ * compatibility! */
+ENGINE *ENGINE_new(void);
+int ENGINE_free(ENGINE *e);
+int ENGINE_up_ref(ENGINE *e);
+int ENGINE_set_id(ENGINE *e, const char *id);
+int ENGINE_set_name(ENGINE *e, const char *name);
+int ENGINE_set_RSA(ENGINE *e, const RSA_METHOD *rsa_meth);
+int ENGINE_set_DSA(ENGINE *e, const DSA_METHOD *dsa_meth);
+int ENGINE_set_ECDH(ENGINE *e, const ECDH_METHOD *ecdh_meth);
+int ENGINE_set_ECDSA(ENGINE *e, const ECDSA_METHOD *ecdsa_meth);
+int ENGINE_set_DH(ENGINE *e, const DH_METHOD *dh_meth);
+int ENGINE_set_RAND(ENGINE *e, const RAND_METHOD *rand_meth);
+int ENGINE_set_STORE(ENGINE *e, const STORE_METHOD *store_meth);
+int ENGINE_set_destroy_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR destroy_f);
+int ENGINE_set_init_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR init_f);
+int ENGINE_set_finish_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR finish_f);
+int ENGINE_set_ctrl_function(ENGINE *e, ENGINE_CTRL_FUNC_PTR ctrl_f);
+int ENGINE_set_load_privkey_function(ENGINE *e, ENGINE_LOAD_KEY_PTR loadpriv_f);
+int ENGINE_set_load_pubkey_function(ENGINE *e, ENGINE_LOAD_KEY_PTR loadpub_f);
+int ENGINE_set_load_ssl_client_cert_function(ENGINE *e,
+    ENGINE_SSL_CLIENT_CERT_PTR loadssl_f);
+int ENGINE_set_ciphers(ENGINE *e, ENGINE_CIPHERS_PTR f);
+int ENGINE_set_digests(ENGINE *e, ENGINE_DIGESTS_PTR f);
+int ENGINE_set_pkey_meths(ENGINE *e, ENGINE_PKEY_METHS_PTR f);
+int ENGINE_set_pkey_asn1_meths(ENGINE *e, ENGINE_PKEY_ASN1_METHS_PTR f);
+int ENGINE_set_flags(ENGINE *e, int flags);
+int ENGINE_set_cmd_defns(ENGINE *e, const ENGINE_CMD_DEFN *defns);
+/* These functions allow control over any per-structure ENGINE data. */
+int ENGINE_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
+    CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
+int ENGINE_set_ex_data(ENGINE *e, int idx, void *arg);
+void *ENGINE_get_ex_data(const ENGINE *e, int idx);
+
+/* This function cleans up anything that needs it. Eg. the ENGINE_add() function
+ * automatically ensures the list cleanup function is registered to be called
+ * from ENGINE_cleanup(). Similarly, all ENGINE_register_*** functions ensure
+ * ENGINE_cleanup() will clean up after them. */
+void ENGINE_cleanup(void);
+
+/* These return values from within the ENGINE structure. These can be useful
+ * with functional references as well as structural references - it depends
+ * which you obtained. Using the result for functional purposes if you only
+ * obtained a structural reference may be problematic! */
+const char *ENGINE_get_id(const ENGINE *e);
+const char *ENGINE_get_name(const ENGINE *e);
+const RSA_METHOD *ENGINE_get_RSA(const ENGINE *e);
+const DSA_METHOD *ENGINE_get_DSA(const ENGINE *e);
+const ECDH_METHOD *ENGINE_get_ECDH(const ENGINE *e);
+const ECDSA_METHOD *ENGINE_get_ECDSA(const ENGINE *e);
+const DH_METHOD *ENGINE_get_DH(const ENGINE *e);
+const RAND_METHOD *ENGINE_get_RAND(const ENGINE *e);
+const STORE_METHOD *ENGINE_get_STORE(const ENGINE *e);
+ENGINE_GEN_INT_FUNC_PTR ENGINE_get_destroy_function(const ENGINE *e);
+ENGINE_GEN_INT_FUNC_PTR ENGINE_get_init_function(const ENGINE *e);
+ENGINE_GEN_INT_FUNC_PTR ENGINE_get_finish_function(const ENGINE *e);
+ENGINE_CTRL_FUNC_PTR ENGINE_get_ctrl_function(const ENGINE *e);
+ENGINE_LOAD_KEY_PTR ENGINE_get_load_privkey_function(const ENGINE *e);
+ENGINE_LOAD_KEY_PTR ENGINE_get_load_pubkey_function(const ENGINE *e);
+ENGINE_SSL_CLIENT_CERT_PTR ENGINE_get_ssl_client_cert_function(const ENGINE *e);
+ENGINE_CIPHERS_PTR ENGINE_get_ciphers(const ENGINE *e);
+ENGINE_DIGESTS_PTR ENGINE_get_digests(const ENGINE *e);
+ENGINE_PKEY_METHS_PTR ENGINE_get_pkey_meths(const ENGINE *e);
+ENGINE_PKEY_ASN1_METHS_PTR ENGINE_get_pkey_asn1_meths(const ENGINE *e);
+const EVP_CIPHER *ENGINE_get_cipher(ENGINE *e, int nid);
+const EVP_MD *ENGINE_get_digest(ENGINE *e, int nid);
+const EVP_PKEY_METHOD *ENGINE_get_pkey_meth(ENGINE *e, int nid);
+const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth(ENGINE *e, int nid);
+const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth_str(ENGINE *e,
+    const char *str, int len);
+const EVP_PKEY_ASN1_METHOD *ENGINE_pkey_asn1_find_str(ENGINE **pe,
+    const char *str, int len);
+const ENGINE_CMD_DEFN *ENGINE_get_cmd_defns(const ENGINE *e);
+int ENGINE_get_flags(const ENGINE *e);
+
+/* FUNCTIONAL functions. These functions deal with ENGINE structures
+ * that have (or will) be initialised for use. Broadly speaking, the
+ * structural functions are useful for iterating the list of available
+ * engine types, creating new engine types, and other "list" operations.
+ * These functions actually deal with ENGINEs that are to be used. As
+ * such these functions can fail (if applicable) when particular
+ * engines are unavailable - eg. if a hardware accelerator is not
+ * attached or not functioning correctly. Each ENGINE has 2 reference
+ * counts; structural and functional. Every time a functional reference
+ * is obtained or released, a corresponding structural reference is
+ * automatically obtained or released too. */
+
+/* Initialise a engine type for use (or up its reference count if it's
+ * already in use). This will fail if the engine is not currently
+ * operational and cannot initialise. */
+int ENGINE_init(ENGINE *e);
+/* Free a functional reference to a engine type. This does not require
+ * a corresponding call to ENGINE_free as it also releases a structural
+ * reference. */
+int ENGINE_finish(ENGINE *e);
+
+/* The following functions handle keys that are stored in some secondary
+ * location, handled by the engine.  The storage may be on a card or
+ * whatever. */
+EVP_PKEY *ENGINE_load_private_key(ENGINE *e, const char *key_id,
+    UI_METHOD *ui_method, void *callback_data);
+EVP_PKEY *ENGINE_load_public_key(ENGINE *e, const char *key_id,
+    UI_METHOD *ui_method, void *callback_data);
+int ENGINE_load_ssl_client_cert(ENGINE *e, SSL *s,
+    STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **ppkey,
+    STACK_OF(X509) **pother,
+    UI_METHOD *ui_method, void *callback_data);
+
+/* This returns a pointer for the current ENGINE structure that
+ * is (by default) performing any RSA operations. The value returned
+ * is an incremented reference, so it should be free'd (ENGINE_finish)
+ * before it is discarded. */
+ENGINE *ENGINE_get_default_RSA(void);
+/* Same for the other "methods" */
+ENGINE *ENGINE_get_default_DSA(void);
+ENGINE *ENGINE_get_default_ECDH(void);
+ENGINE *ENGINE_get_default_ECDSA(void);
+ENGINE *ENGINE_get_default_DH(void);
+ENGINE *ENGINE_get_default_RAND(void);
+/* These functions can be used to get a functional reference to perform
+ * ciphering or digesting corresponding to "nid". */
+ENGINE *ENGINE_get_cipher_engine(int nid);
+ENGINE *ENGINE_get_digest_engine(int nid);
+ENGINE *ENGINE_get_pkey_meth_engine(int nid);
+ENGINE *ENGINE_get_pkey_asn1_meth_engine(int nid);
+
+/* This sets a new default ENGINE structure for performing RSA
+ * operations. If the result is non-zero (success) then the ENGINE
+ * structure will have had its reference count up'd so the caller
+ * should still free their own reference 'e'. */
+int ENGINE_set_default_RSA(ENGINE *e);
+int ENGINE_set_default_string(ENGINE *e, const char *def_list);
+/* Same for the other "methods" */
+int ENGINE_set_default_DSA(ENGINE *e);
+int ENGINE_set_default_ECDH(ENGINE *e);
+int ENGINE_set_default_ECDSA(ENGINE *e);
+int ENGINE_set_default_DH(ENGINE *e);
+int ENGINE_set_default_RAND(ENGINE *e);
+int ENGINE_set_default_ciphers(ENGINE *e);
+int ENGINE_set_default_digests(ENGINE *e);
+int ENGINE_set_default_pkey_meths(ENGINE *e);
+int ENGINE_set_default_pkey_asn1_meths(ENGINE *e);
+
+/* The combination "set" - the flags are bitwise "OR"d from the
+ * ENGINE_METHOD_*** defines above. As with the "ENGINE_register_complete()"
+ * function, this function can result in unnecessary static linkage. If your
+ * application requires only specific functionality, consider using more
+ * selective functions. */
+int ENGINE_set_default(ENGINE *e, unsigned int flags);
+
+void ENGINE_add_conf_module(void);
+
+/* Deprecated functions ... */
+/* int ENGINE_clear_defaults(void); */
+
+/**************************/
+/* DYNAMIC ENGINE SUPPORT */
+/**************************/
+
+/* Binary/behaviour compatibility levels */
+#define OSSL_DYNAMIC_VERSION		(unsigned long)0x00020000
+/* Binary versions older than this are too old for us (whether we're a loader or
+ * a loadee) */
+#define OSSL_DYNAMIC_OLDEST		(unsigned long)0x00020000
+
+/* When compiling an ENGINE entirely as an external shared library, loadable by
+ * the "dynamic" ENGINE, these types are needed. The 'dynamic_fns' structure
+ * type provides the calling application's (or library's) error functionality
+ * and memory management function pointers to the loaded library. These should
+ * be used/set in the loaded library code so that the loading application's
+ * 'state' will be used/changed in all operations. The 'static_state' pointer
+ * allows the loaded library to know if it shares the same static data as the
+ * calling application (or library), and thus whether these callbacks need to be
+ * set or not. */
+typedef void *(*dyn_MEM_malloc_cb)(size_t);
+typedef void *(*dyn_MEM_realloc_cb)(void *, size_t);
+typedef void (*dyn_MEM_free_cb)(void *);
+typedef struct st_dynamic_MEM_fns {
+	dyn_MEM_malloc_cb			malloc_cb;
+	dyn_MEM_realloc_cb			realloc_cb;
+	dyn_MEM_free_cb				free_cb;
+} dynamic_MEM_fns;
+/* FIXME: Perhaps the memory and locking code (crypto.h) should declare and use
+ * these types so we (and any other dependant code) can simplify a bit?? */
+typedef void (*dyn_lock_locking_cb)(int, int, const char *, int);
+typedef int (*dyn_lock_add_lock_cb)(int*, int, int, const char *, int);
+typedef struct CRYPTO_dynlock_value *(*dyn_dynlock_create_cb)(
+    const char *, int);
+typedef void (*dyn_dynlock_lock_cb)(int, struct CRYPTO_dynlock_value *,
+    const char *, int);
+typedef void (*dyn_dynlock_destroy_cb)(struct CRYPTO_dynlock_value *,
+    const char *, int);
+typedef struct st_dynamic_LOCK_fns {
+	dyn_lock_locking_cb			lock_locking_cb;
+	dyn_lock_add_lock_cb			lock_add_lock_cb;
+	dyn_dynlock_create_cb			dynlock_create_cb;
+	dyn_dynlock_lock_cb			dynlock_lock_cb;
+	dyn_dynlock_destroy_cb			dynlock_destroy_cb;
+} dynamic_LOCK_fns;
+/* The top-level structure */
+typedef struct st_dynamic_fns {
+	void 					*static_state;
+	const ERR_FNS				*err_fns;
+	const CRYPTO_EX_DATA_IMPL		*ex_data_fns;
+	dynamic_MEM_fns				mem_fns;
+	dynamic_LOCK_fns			lock_fns;
+} dynamic_fns;
+
+/* The version checking function should be of this prototype. NB: The
+ * ossl_version value passed in is the OSSL_DYNAMIC_VERSION of the loading code.
+ * If this function returns zero, it indicates a (potential) version
+ * incompatibility and the loaded library doesn't believe it can proceed.
+ * Otherwise, the returned value is the (latest) version supported by the
+ * loading library. The loader may still decide that the loaded code's version
+ * is unsatisfactory and could veto the load. The function is expected to
+ * be implemented with the symbol name "v_check", and a default implementation
+ * can be fully instantiated with IMPLEMENT_DYNAMIC_CHECK_FN(). */
+typedef unsigned long (*dynamic_v_check_fn)(unsigned long ossl_version);
+#define IMPLEMENT_DYNAMIC_CHECK_FN() \
+	extern unsigned long v_check(unsigned long v); \
+	extern unsigned long v_check(unsigned long v) { \
+		if(v >= OSSL_DYNAMIC_OLDEST) return OSSL_DYNAMIC_VERSION; \
+		return 0; }
+
+/* This function is passed the ENGINE structure to initialise with its own
+ * function and command settings. It should not adjust the structural or
+ * functional reference counts. If this function returns zero, (a) the load will
+ * be aborted, (b) the previous ENGINE state will be memcpy'd back onto the
+ * structure, and (c) the shared library will be unloaded. So implementations
+ * should do their own internal cleanup in failure circumstances otherwise they
+ * could leak. The 'id' parameter, if non-NULL, represents the ENGINE id that
+ * the loader is looking for. If this is NULL, the shared library can choose to
+ * return failure or to initialise a 'default' ENGINE. If non-NULL, the shared
+ * library must initialise only an ENGINE matching the passed 'id'. The function
+ * is expected to be implemented with the symbol name "bind_engine". A standard
+ * implementation can be instantiated with IMPLEMENT_DYNAMIC_BIND_FN(fn) where
+ * the parameter 'fn' is a callback function that populates the ENGINE structure
+ * and returns an int value (zero for failure). 'fn' should have prototype;
+ *    [static] int fn(ENGINE *e, const char *id); */
+typedef int (*dynamic_bind_engine)(ENGINE *e, const char *id,
+    const dynamic_fns *fns);
+#define IMPLEMENT_DYNAMIC_BIND_FN(fn) \
+	extern \
+	int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns); \
+	extern \
+	int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { \
+		if(ENGINE_get_static_state() == fns->static_state) goto skip_cbs; \
+		if(!CRYPTO_set_mem_functions(fns->mem_fns.malloc_cb, \
+			fns->mem_fns.realloc_cb, fns->mem_fns.free_cb)) \
+			return 0; \
+		CRYPTO_set_locking_callback(fns->lock_fns.lock_locking_cb); \
+		CRYPTO_set_add_lock_callback(fns->lock_fns.lock_add_lock_cb); \
+		CRYPTO_set_dynlock_create_callback(fns->lock_fns.dynlock_create_cb); \
+		CRYPTO_set_dynlock_lock_callback(fns->lock_fns.dynlock_lock_cb); \
+		CRYPTO_set_dynlock_destroy_callback(fns->lock_fns.dynlock_destroy_cb); \
+		if(!CRYPTO_set_ex_data_implementation(fns->ex_data_fns)) \
+			return 0; \
+		if(!ERR_set_implementation(fns->err_fns)) return 0; \
+	skip_cbs: \
+		if(!fn(e,id)) return 0; \
+		return 1; }
+
+/* If the loading application (or library) and the loaded ENGINE library share
+ * the same static data (eg. they're both dynamically linked to the same
+ * libcrypto.so) we need a way to avoid trying to set system callbacks - this
+ * would fail, and for the same reason that it's unnecessary to try. If the
+ * loaded ENGINE has (or gets from through the loader) its own copy of the
+ * libcrypto static data, we will need to set the callbacks. The easiest way to
+ * detect this is to have a function that returns a pointer to some static data
+ * and let the loading application and loaded ENGINE compare their respective
+ * values. */
+					void *ENGINE_get_static_state(void);
+
+/* BEGIN ERROR CODES */
+/* The following lines are auto generated by the script mkerr.pl. Any changes
+ * made after this point may be overwritten when the script is next run.
+ */
+void ERR_load_ENGINE_strings(void);
+
+/* Error codes for the ENGINE functions. */
+
+/* Function codes. */
+#define ENGINE_F_DYNAMIC_CTRL				 180
+#define ENGINE_F_DYNAMIC_GET_DATA_CTX			 181
+#define ENGINE_F_DYNAMIC_LOAD				 182
+#define ENGINE_F_DYNAMIC_SET_DATA_CTX			 183
+#define ENGINE_F_ENGINE_ADD				 105
+#define ENGINE_F_ENGINE_BY_ID				 106
+#define ENGINE_F_ENGINE_CMD_IS_EXECUTABLE		 170
+#define ENGINE_F_ENGINE_CTRL				 142
+#define ENGINE_F_ENGINE_CTRL_CMD			 178
+#define ENGINE_F_ENGINE_CTRL_CMD_STRING			 171
+#define ENGINE_F_ENGINE_FINISH				 107
+#define ENGINE_F_ENGINE_FREE_UTIL			 108
+#define ENGINE_F_ENGINE_GET_CIPHER			 185
+#define ENGINE_F_ENGINE_GET_DEFAULT_TYPE		 177
+#define ENGINE_F_ENGINE_GET_DIGEST			 186
+#define ENGINE_F_ENGINE_GET_NEXT			 115
+#define ENGINE_F_ENGINE_GET_PKEY_ASN1_METH		 193
+#define ENGINE_F_ENGINE_GET_PKEY_METH			 192
+#define ENGINE_F_ENGINE_GET_PREV			 116
+#define ENGINE_F_ENGINE_INIT				 119
+#define ENGINE_F_ENGINE_LIST_ADD			 120
+#define ENGINE_F_ENGINE_LIST_REMOVE			 121
+#define ENGINE_F_ENGINE_LOAD_PRIVATE_KEY		 150
+#define ENGINE_F_ENGINE_LOAD_PUBLIC_KEY			 151
+#define ENGINE_F_ENGINE_LOAD_SSL_CLIENT_CERT		 194
+#define ENGINE_F_ENGINE_NEW				 122
+#define ENGINE_F_ENGINE_REMOVE				 123
+#define ENGINE_F_ENGINE_SET_DEFAULT_STRING		 189
+#define ENGINE_F_ENGINE_SET_DEFAULT_TYPE		 126
+#define ENGINE_F_ENGINE_SET_ID				 129
+#define ENGINE_F_ENGINE_SET_NAME			 130
+#define ENGINE_F_ENGINE_TABLE_REGISTER			 184
+#define ENGINE_F_ENGINE_UNLOAD_KEY			 152
+#define ENGINE_F_ENGINE_UNLOCKED_FINISH			 191
+#define ENGINE_F_ENGINE_UP_REF				 190
+#define ENGINE_F_INT_CTRL_HELPER			 172
+#define ENGINE_F_INT_ENGINE_CONFIGURE			 188
+#define ENGINE_F_INT_ENGINE_MODULE_INIT			 187
+#define ENGINE_F_LOG_MESSAGE				 141
+
+/* Reason codes. */
+#define ENGINE_R_ALREADY_LOADED				 100
+#define ENGINE_R_ARGUMENT_IS_NOT_A_NUMBER		 133
+#define ENGINE_R_CMD_NOT_EXECUTABLE			 134
+#define ENGINE_R_COMMAND_TAKES_INPUT			 135
+#define ENGINE_R_COMMAND_TAKES_NO_INPUT			 136
+#define ENGINE_R_CONFLICTING_ENGINE_ID			 103
+#define ENGINE_R_CTRL_COMMAND_NOT_IMPLEMENTED		 119
+#define ENGINE_R_DH_NOT_IMPLEMENTED			 139
+#define ENGINE_R_DSA_NOT_IMPLEMENTED			 140
+#define ENGINE_R_DSO_FAILURE				 104
+#define ENGINE_R_DSO_NOT_FOUND				 132
+#define ENGINE_R_ENGINES_SECTION_ERROR			 148
+#define ENGINE_R_ENGINE_CONFIGURATION_ERROR		 102
+#define ENGINE_R_ENGINE_IS_NOT_IN_LIST			 105
+#define ENGINE_R_ENGINE_SECTION_ERROR			 149
+#define ENGINE_R_FAILED_LOADING_PRIVATE_KEY		 128
+#define ENGINE_R_FAILED_LOADING_PUBLIC_KEY		 129
+#define ENGINE_R_FINISH_FAILED				 106
+#define ENGINE_R_GET_HANDLE_FAILED			 107
+#define ENGINE_R_ID_OR_NAME_MISSING			 108
+#define ENGINE_R_INIT_FAILED				 109
+#define ENGINE_R_INTERNAL_LIST_ERROR			 110
+#define ENGINE_R_INVALID_ARGUMENT			 143
+#define ENGINE_R_INVALID_CMD_NAME			 137
+#define ENGINE_R_INVALID_CMD_NUMBER			 138
+#define ENGINE_R_INVALID_INIT_VALUE			 151
+#define ENGINE_R_INVALID_STRING				 150
+#define ENGINE_R_NOT_INITIALISED			 117
+#define ENGINE_R_NOT_LOADED				 112
+#define ENGINE_R_NO_CONTROL_FUNCTION			 120
+#define ENGINE_R_NO_INDEX				 144
+#define ENGINE_R_NO_LOAD_FUNCTION			 125
+#define ENGINE_R_NO_REFERENCE				 130
+#define ENGINE_R_NO_SUCH_ENGINE				 116
+#define ENGINE_R_NO_UNLOAD_FUNCTION			 126
+#define ENGINE_R_PROVIDE_PARAMETERS			 113
+#define ENGINE_R_RSA_NOT_IMPLEMENTED			 141
+#define ENGINE_R_UNIMPLEMENTED_CIPHER			 146
+#define ENGINE_R_UNIMPLEMENTED_DIGEST			 147
+#define ENGINE_R_UNIMPLEMENTED_PUBLIC_KEY_METHOD	 101
+#define ENGINE_R_VERSION_INCOMPATIBILITY		 145
+
+#ifdef  __cplusplus
+}
+#endif
+#endif