Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/engine/eng_ctrl.c

Index: openssl/crypto/engine/eng_ctrl.c
diff --git a/openssl/crypto/engine/eng_ctrl.c b/openssl/crypto/engine/eng_ctrl.c
deleted file mode 100644
index 5ce25d92ec9518508b9e7c3734bf1b59ae8fcc63..0000000000000000000000000000000000000000
--- a/openssl/crypto/engine/eng_ctrl.c
+++ /dev/null
@@ -1,389 +0,0 @@
-/* crypto/engine/eng_ctrl.c */
-/* ====================================================================
- * Copyright (c) 1999-2001 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).
- *
- */
-
-#include "eng_int.h"
-
-/* When querying a ENGINE-specific control command's 'description', this string
- * is used if the ENGINE_CMD_DEFN has cmd_desc set to NULL. */
-static const char *int_no_description = "";
-
-/* These internal functions handle 'CMD'-related control commands when the
- * ENGINE in question has asked us to take care of it (ie. the ENGINE did not
- * set the ENGINE_FLAGS_MANUAL_CMD_CTRL flag. */
-
-static int int_ctrl_cmd_is_null(const ENGINE_CMD_DEFN *defn)
-	{
-	if((defn->cmd_num == 0) || (defn->cmd_name == NULL))
-		return 1;
-	return 0;
-	}
-
-static int int_ctrl_cmd_by_name(const ENGINE_CMD_DEFN *defn, const char *s)
-	{
-	int idx = 0;
-	while(!int_ctrl_cmd_is_null(defn) && (strcmp(defn->cmd_name, s) != 0))
-		{
-		idx++;
-		defn++;
-		}
-	if(int_ctrl_cmd_is_null(defn))
-		/* The given name wasn't found */
-		return -1;
-	return idx;
-	}
-
-static int int_ctrl_cmd_by_num(const ENGINE_CMD_DEFN *defn, unsigned int num)
-	{
-	int idx = 0;
-	/* NB: It is stipulated that 'cmd_defn' lists are ordered by cmd_num. So
-	 * our searches don't need to take any longer than necessary. */
-	while(!int_ctrl_cmd_is_null(defn) && (defn->cmd_num < num))
-		{
-		idx++;
-		defn++;
-		}
-	if(defn->cmd_num == num)
-		return idx;
-	/* The given cmd_num wasn't found */
-	return -1;
-	}
-
-static int int_ctrl_helper(ENGINE *e, int cmd, long i, void *p,
-			   void (*f)(void))
-	{
-	int idx;
-	char *s = (char *)p;
-	/* Take care of the easy one first (eg. it requires no searches) */
-	if(cmd == ENGINE_CTRL_GET_FIRST_CMD_TYPE)
-		{
-		if((e->cmd_defns == NULL) || int_ctrl_cmd_is_null(e->cmd_defns))
-			return 0;
-		return e->cmd_defns->cmd_num;
-		}
-	/* One or two commands require that "p" be a valid string buffer */
-	if((cmd == ENGINE_CTRL_GET_CMD_FROM_NAME) ||
-			(cmd == ENGINE_CTRL_GET_NAME_FROM_CMD) ||
-			(cmd == ENGINE_CTRL_GET_DESC_FROM_CMD))
-		{
-		if(s == NULL)
-			{
-			ENGINEerr(ENGINE_F_INT_CTRL_HELPER,
-				ERR_R_PASSED_NULL_PARAMETER);
-			return -1;
-			}
-		}
-	/* Now handle cmd_name -> cmd_num conversion */
-	if(cmd == ENGINE_CTRL_GET_CMD_FROM_NAME)
-		{
-		if((e->cmd_defns == NULL) || ((idx = int_ctrl_cmd_by_name(
-						e->cmd_defns, s)) < 0))
-			{
-			ENGINEerr(ENGINE_F_INT_CTRL_HELPER,
-				ENGINE_R_INVALID_CMD_NAME);
-			return -1;
-			}
-		return e->cmd_defns[idx].cmd_num;
-		}
-	/* For the rest of the commands, the 'long' argument must specify a
-	 * valie command number - so we need to conduct a search. */
-	if((e->cmd_defns == NULL) || ((idx = int_ctrl_cmd_by_num(e->cmd_defns,
-					(unsigned int)i)) < 0))
-		{
-		ENGINEerr(ENGINE_F_INT_CTRL_HELPER,
-			ENGINE_R_INVALID_CMD_NUMBER);
-		return -1;
-		}
-	/* Now the logic splits depending on command type */
-	switch(cmd)
-		{
-	case ENGINE_CTRL_GET_NEXT_CMD_TYPE:
-		idx++;
-		if(int_ctrl_cmd_is_null(e->cmd_defns + idx))
-			/* end-of-list */
-			return 0;
-		else
-			return e->cmd_defns[idx].cmd_num;
-	case ENGINE_CTRL_GET_NAME_LEN_FROM_CMD:
-		return strlen(e->cmd_defns[idx].cmd_name);
-	case ENGINE_CTRL_GET_NAME_FROM_CMD:
-		return BIO_snprintf(s,strlen(e->cmd_defns[idx].cmd_name) + 1,
-				    "%s", e->cmd_defns[idx].cmd_name);
-	case ENGINE_CTRL_GET_DESC_LEN_FROM_CMD:
-		if(e->cmd_defns[idx].cmd_desc)
-			return strlen(e->cmd_defns[idx].cmd_desc);
-		return strlen(int_no_description);
-	case ENGINE_CTRL_GET_DESC_FROM_CMD:
-		if(e->cmd_defns[idx].cmd_desc)
-			return BIO_snprintf(s,
-					    strlen(e->cmd_defns[idx].cmd_desc) + 1,
-					    "%s", e->cmd_defns[idx].cmd_desc);
-		return BIO_snprintf(s, strlen(int_no_description) + 1,"%s",
-				    int_no_description);
-	case ENGINE_CTRL_GET_CMD_FLAGS:
-		return e->cmd_defns[idx].cmd_flags;
-		}
-	/* Shouldn't really be here ... */
-	ENGINEerr(ENGINE_F_INT_CTRL_HELPER,ENGINE_R_INTERNAL_LIST_ERROR);
-	return -1;
-	}
-
-int ENGINE_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
-	{
-	int ctrl_exists, ref_exists;
-	if(e == NULL)
-		{
-		ENGINEerr(ENGINE_F_ENGINE_CTRL,ERR_R_PASSED_NULL_PARAMETER);
-		return 0;
-		}
-	CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
-	ref_exists = ((e->struct_ref > 0) ? 1 : 0);
-	CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
-	ctrl_exists = ((e->ctrl == NULL) ? 0 : 1);
-	if(!ref_exists)
-		{
-		ENGINEerr(ENGINE_F_ENGINE_CTRL,ENGINE_R_NO_REFERENCE);
-		return 0;
-		}
-	/* Intercept any "root-level" commands before trying to hand them on to
-	 * ctrl() handlers. */
-	switch(cmd)
-		{
-	case ENGINE_CTRL_HAS_CTRL_FUNCTION:
-		return ctrl_exists;
-	case ENGINE_CTRL_GET_FIRST_CMD_TYPE:
-	case ENGINE_CTRL_GET_NEXT_CMD_TYPE:
-	case ENGINE_CTRL_GET_CMD_FROM_NAME:
-	case ENGINE_CTRL_GET_NAME_LEN_FROM_CMD:
-	case ENGINE_CTRL_GET_NAME_FROM_CMD:
-	case ENGINE_CTRL_GET_DESC_LEN_FROM_CMD:
-	case ENGINE_CTRL_GET_DESC_FROM_CMD:
-	case ENGINE_CTRL_GET_CMD_FLAGS:
-		if(ctrl_exists && !(e->flags & ENGINE_FLAGS_MANUAL_CMD_CTRL))
-			return int_ctrl_helper(e,cmd,i,p,f);
-		if(!ctrl_exists)
-			{
-			ENGINEerr(ENGINE_F_ENGINE_CTRL,ENGINE_R_NO_CONTROL_FUNCTION);
-			/* For these cmd-related functions, failure is indicated
-			 * by a -1 return value (because 0 is used as a valid
-			 * return in some places). */
-			return -1;
-			}
-	default:
-		break;
-		}
-	/* Anything else requires a ctrl() handler to exist. */
-	if(!ctrl_exists)
-		{
-		ENGINEerr(ENGINE_F_ENGINE_CTRL,ENGINE_R_NO_CONTROL_FUNCTION);
-		return 0;
-		}
-	return e->ctrl(e, cmd, i, p, f);
-	}
-
-int ENGINE_cmd_is_executable(ENGINE *e, int cmd)
-	{
-	int flags;
-	if((flags = ENGINE_ctrl(e, ENGINE_CTRL_GET_CMD_FLAGS, cmd, NULL, NULL)) < 0)
-		{
-		ENGINEerr(ENGINE_F_ENGINE_CMD_IS_EXECUTABLE,
-			ENGINE_R_INVALID_CMD_NUMBER);
-		return 0;
-		}
-	if(!(flags & ENGINE_CMD_FLAG_NO_INPUT) &&
-			!(flags & ENGINE_CMD_FLAG_NUMERIC) &&
-			!(flags & ENGINE_CMD_FLAG_STRING))
-		return 0;
-	return 1;
-	}
-
-int ENGINE_ctrl_cmd(ENGINE *e, const char *cmd_name,
-        long i, void *p, void (*f)(void), int cmd_optional)
-        {
-	int num;
-
-	if((e == NULL) || (cmd_name == NULL))
-		{
-		ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD,
-			ERR_R_PASSED_NULL_PARAMETER);
-		return 0;
-		}
-	if((e->ctrl == NULL) || ((num = ENGINE_ctrl(e,
-					ENGINE_CTRL_GET_CMD_FROM_NAME,
-					0, (void *)cmd_name, NULL)) <= 0))
-		{
-		/* If the command didn't *have* to be supported, we fake
-		 * success. This allows certain settings to be specified for
-		 * multiple ENGINEs and only require a change of ENGINE id
-		 * (without having to selectively apply settings). Eg. changing
-		 * from a hardware device back to the regular software ENGINE
-		 * without editing the config file, etc. */
-		if(cmd_optional)
-			{
-			ERR_clear_error();
-			return 1;
-			}
-		ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD,
-			ENGINE_R_INVALID_CMD_NAME);
-		return 0;
-		}
-	/* Force the result of the control command to 0 or 1, for the reasons
-	 * mentioned before. */
-        if (ENGINE_ctrl(e, num, i, p, f) > 0)
-                return 1;
-        return 0;
-        }
-
-int ENGINE_ctrl_cmd_string(ENGINE *e, const char *cmd_name, const char *arg,
-				int cmd_optional)
-	{
-	int num, flags;
-	long l;
-	char *ptr;
-	if((e == NULL) || (cmd_name == NULL))
-		{
-		ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
-			ERR_R_PASSED_NULL_PARAMETER);
-		return 0;
-		}
-	if((e->ctrl == NULL) || ((num = ENGINE_ctrl(e,
-					ENGINE_CTRL_GET_CMD_FROM_NAME,
-					0, (void *)cmd_name, NULL)) <= 0))
-		{
-		/* If the command didn't *have* to be supported, we fake
-		 * success. This allows certain settings to be specified for
-		 * multiple ENGINEs and only require a change of ENGINE id
-		 * (without having to selectively apply settings). Eg. changing
-		 * from a hardware device back to the regular software ENGINE
-		 * without editing the config file, etc. */
-		if(cmd_optional)
-			{
-			ERR_clear_error();
-			return 1;
-			}
-		ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
-			ENGINE_R_INVALID_CMD_NAME);
-		return 0;
-		}
-	if(!ENGINE_cmd_is_executable(e, num))
-		{
-		ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
-			ENGINE_R_CMD_NOT_EXECUTABLE);
-		return 0;
-		}
-	if((flags = ENGINE_ctrl(e, ENGINE_CTRL_GET_CMD_FLAGS, num, NULL, NULL)) < 0)
-		{
-		/* Shouldn't happen, given that ENGINE_cmd_is_executable()
-		 * returned success. */
-		ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
-			ENGINE_R_INTERNAL_LIST_ERROR);
-		return 0;
-		}
-	/* If the command takes no input, there must be no input. And vice
-	 * versa. */
-	if(flags & ENGINE_CMD_FLAG_NO_INPUT)
-		{
-		if(arg != NULL)
-			{
-			ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
-				ENGINE_R_COMMAND_TAKES_NO_INPUT);
-			return 0;
-			}
-		/* We deliberately force the result of ENGINE_ctrl() to 0 or 1
-		 * rather than returning it as "return data". This is to ensure
-		 * usage of these commands is consistent across applications and
-		 * that certain applications don't understand it one way, and
-		 * others another. */
-		if(ENGINE_ctrl(e, num, 0, (void *)arg, NULL) > 0)
-			return 1;
-		return 0;
-		}
-	/* So, we require input */
-	if(arg == NULL)
-		{
-		ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
-			ENGINE_R_COMMAND_TAKES_INPUT);
-		return 0;
-		}
-	/* If it takes string input, that's easy */
-	if(flags & ENGINE_CMD_FLAG_STRING)
-		{
-		/* Same explanation as above */
-		if(ENGINE_ctrl(e, num, 0, (void *)arg, NULL) > 0)
-			return 1;
-		return 0;
-		}
-	/* If it doesn't take numeric either, then it is unsupported for use in
-	 * a config-setting situation, which is what this function is for. This
-	 * should never happen though, because ENGINE_cmd_is_executable() was
-	 * used. */
-	if(!(flags & ENGINE_CMD_FLAG_NUMERIC))
-		{
-		ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
-			ENGINE_R_INTERNAL_LIST_ERROR);
-		return 0;
-		}
-	l = strtol(arg, &ptr, 10);
-	if((arg == ptr) || (*ptr != '\0'))
-		{
-		ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
-			ENGINE_R_ARGUMENT_IS_NOT_A_NUMBER);
-		return 0;
-		}
-	/* Force the result of the control command to 0 or 1, for the reasons
-	 * mentioned before. */
-	if(ENGINE_ctrl(e, num, l, NULL, NULL) > 0)
-		return 1;
-	return 0;
-	}