--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ssl/libcrypto/src/crypto/dso/dso_lib.c	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,477 @@
+/* dso_lib.c -*- mode:C; c-file-style: "eay" -*- */
+/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
+ * project 2000.
+ */
+/* ====================================================================
+ * Copyright (c) 2000 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).
+ *
+ */
+ /*
+ © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.
+ */
+
+#include <stdio.h>
+#include <openssl/crypto.h>
+#include "cryptlib.h"
+#include <openssl/dso.h>
+#if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))
+#include "libcrypto_wsd_macros.h"
+#include "libcrypto_wsd.h"
+#endif
+#ifndef EMULATOR
+static DSO_METHOD *default_DSO_meth = NULL;
+#else
+GET_STATIC_VAR_FROM_TLS(default_DSO_meth,dso_lib,DSO_METHOD *)
+#define default_DSO_meth (*GET_WSD_VAR_NAME(default_DSO_meth,dso_lib, s)())
+#endif
+
+EXPORT_C DSO *DSO_new(void)
+	{
+	return(DSO_new_method(NULL));
+	}
+
+EXPORT_C void DSO_set_default_method(DSO_METHOD *meth)
+	{
+	default_DSO_meth = meth;
+	}
+
+EXPORT_C DSO_METHOD *DSO_get_default_method(void)
+	{
+	return(default_DSO_meth);
+	}
+
+EXPORT_C DSO_METHOD *DSO_get_method(DSO *dso)
+	{
+	return(dso->meth);
+	}
+
+EXPORT_C DSO_METHOD *DSO_set_method(DSO *dso, DSO_METHOD *meth)
+	{
+	DSO_METHOD *mtmp;
+	mtmp = dso->meth;
+	dso->meth = meth;
+	return(mtmp);
+	}
+
+EXPORT_C DSO *DSO_new_method(DSO_METHOD *meth)
+	{
+	DSO *ret;
+
+	if(default_DSO_meth == NULL)
+		/* We default to DSO_METH_openssl() which in turn defaults
+		 * to stealing the "best available" method. Will fallback
+		 * to DSO_METH_null() in the worst case. */
+		default_DSO_meth = DSO_METHOD_openssl();
+	ret = (DSO *)OPENSSL_malloc(sizeof(DSO));
+	if(ret == NULL)
+		{
+		DSOerr(DSO_F_DSO_NEW_METHOD,ERR_R_MALLOC_FAILURE);
+		return(NULL);
+		}
+	memset(ret, 0, sizeof(DSO));
+	ret->meth_data = sk_new_null();
+	if(ret->meth_data == NULL)
+		{
+		/* sk_new doesn't generate any errors so we do */
+		DSOerr(DSO_F_DSO_NEW_METHOD,ERR_R_MALLOC_FAILURE);
+		OPENSSL_free(ret);
+		return(NULL);
+		}
+	if(meth == NULL)
+		ret->meth = default_DSO_meth;
+	else
+		ret->meth = meth;
+	ret->references = 1;
+	if((ret->meth->init != NULL) && !ret->meth->init(ret))
+		{
+		OPENSSL_free(ret);
+		ret=NULL;
+		}
+	return(ret);
+	}
+
+EXPORT_C int DSO_free(DSO *dso)
+	{
+        int i;
+ 
+	if(dso == NULL)
+		{
+		DSOerr(DSO_F_DSO_FREE,ERR_R_PASSED_NULL_PARAMETER);
+		return(0);
+		}
+ 
+	i=CRYPTO_add(&dso->references,-1,CRYPTO_LOCK_DSO);
+#ifdef REF_PRINT
+	REF_PRINT("DSO",dso);
+#endif
+	if(i > 0) return(1);
+#ifdef REF_CHECK
+	if(i < 0)
+		{
+		fprintf(stderr,"DSO_free, bad reference count\n");
+		abort();
+		}
+#endif
+
+	if((dso->meth->dso_unload != NULL) && !dso->meth->dso_unload(dso))
+		{
+		DSOerr(DSO_F_DSO_FREE,DSO_R_UNLOAD_FAILED);
+		return(0);
+		}
+ 
+	if((dso->meth->finish != NULL) && !dso->meth->finish(dso))
+		{
+		DSOerr(DSO_F_DSO_FREE,DSO_R_FINISH_FAILED);
+		return(0);
+		}
+	
+	sk_free(dso->meth_data);
+	if(dso->filename != NULL)
+		OPENSSL_free(dso->filename);
+	if(dso->loaded_filename != NULL)
+		OPENSSL_free(dso->loaded_filename);
+ 
+	OPENSSL_free(dso);
+	return(1);
+	}
+
+EXPORT_C int DSO_flags(DSO *dso)
+	{
+	return((dso == NULL) ? 0 : dso->flags);
+	}
+
+
+EXPORT_C int DSO_up_ref(DSO *dso)
+	{
+	if (dso == NULL)
+		{
+		DSOerr(DSO_F_DSO_UP_REF,ERR_R_PASSED_NULL_PARAMETER);
+		return(0);
+		}
+
+	CRYPTO_add(&dso->references,1,CRYPTO_LOCK_DSO);
+	return(1);
+	}
+
+EXPORT_C DSO *DSO_load(DSO *dso, const char *filename, DSO_METHOD *meth, int flags)
+	{
+	DSO *ret;
+	int allocated = 0;
+
+	if(dso == NULL)
+		{
+		ret = DSO_new_method(meth);
+		if(ret == NULL)
+			{
+			DSOerr(DSO_F_DSO_LOAD,ERR_R_MALLOC_FAILURE);
+			goto err;
+			}
+		allocated = 1;
+		/* Pass the provided flags to the new DSO object */
+		if(DSO_ctrl(ret, DSO_CTRL_SET_FLAGS, flags, NULL) < 0)
+			{
+			DSOerr(DSO_F_DSO_LOAD,DSO_R_CTRL_FAILED);
+			goto err;
+			}
+		}
+	else
+		ret = dso;
+	/* Don't load if we're currently already loaded */
+	if(ret->filename != NULL)
+		{
+		DSOerr(DSO_F_DSO_LOAD,DSO_R_DSO_ALREADY_LOADED);
+		goto err;
+		}
+	/* filename can only be NULL if we were passed a dso that already has
+	 * one set. */
+	if(filename != NULL)
+		if(!DSO_set_filename(ret, filename))
+			{
+			DSOerr(DSO_F_DSO_LOAD,DSO_R_SET_FILENAME_FAILED);
+			goto err;
+			}
+	filename = ret->filename;
+	if(filename == NULL)
+		{
+		DSOerr(DSO_F_DSO_LOAD,DSO_R_NO_FILENAME);
+		goto err;
+		}
+	if(ret->meth->dso_load == NULL)
+		{
+		DSOerr(DSO_F_DSO_LOAD,DSO_R_UNSUPPORTED);
+		goto err;
+		}
+	if(!ret->meth->dso_load(ret))
+		{
+		DSOerr(DSO_F_DSO_LOAD,DSO_R_LOAD_FAILED);
+		goto err;
+		}
+	/* Load succeeded */
+	return(ret);
+err:
+	if(allocated)
+		DSO_free(ret);
+	return(NULL);
+	}
+
+EXPORT_C void *DSO_bind_var(DSO *dso, const char *symname)
+	{
+	void *ret = NULL;
+
+	if((dso == NULL) || (symname == NULL))
+		{
+		DSOerr(DSO_F_DSO_BIND_VAR,ERR_R_PASSED_NULL_PARAMETER);
+		return(NULL);
+		}
+	if(dso->meth->dso_bind_var == NULL)
+		{
+		DSOerr(DSO_F_DSO_BIND_VAR,DSO_R_UNSUPPORTED);
+		return(NULL);
+		}
+	if((ret = dso->meth->dso_bind_var(dso, symname)) == NULL)
+		{
+		DSOerr(DSO_F_DSO_BIND_VAR,DSO_R_SYM_FAILURE);
+		return(NULL);
+		}
+	/* Success */
+	return(ret);
+	}
+
+EXPORT_C DSO_FUNC_TYPE DSO_bind_func(DSO *dso, const char *symname)
+	{
+	DSO_FUNC_TYPE ret = NULL;
+
+	if((dso == NULL) || (symname == NULL))
+		{
+		DSOerr(DSO_F_DSO_BIND_FUNC,ERR_R_PASSED_NULL_PARAMETER);
+		return(NULL);
+		}
+	if(dso->meth->dso_bind_func == NULL)
+		{
+		DSOerr(DSO_F_DSO_BIND_FUNC,DSO_R_UNSUPPORTED);
+		return(NULL);
+		}
+	if((ret = dso->meth->dso_bind_func(dso, symname)) == NULL)
+		{
+		DSOerr(DSO_F_DSO_BIND_FUNC,DSO_R_SYM_FAILURE);
+		return(NULL);
+		}
+	/* Success */
+	return(ret);
+	}
+
+/* I don't really like these *_ctrl functions very much to be perfectly
+ * honest. For one thing, I think I have to return a negative value for
+ * any error because possible DSO_ctrl() commands may return values
+ * such as "size"s that can legitimately be zero (making the standard
+ * "if(DSO_cmd(...))" form that works almost everywhere else fail at
+ * odd times. I'd prefer "output" values to be passed by reference and
+ * the return value as success/failure like usual ... but we conform
+ * when we must... :-) */
+EXPORT_C long DSO_ctrl(DSO *dso, int cmd, long larg, void *parg)
+	{
+	if(dso == NULL)
+		{
+		DSOerr(DSO_F_DSO_CTRL,ERR_R_PASSED_NULL_PARAMETER);
+		return(-1);
+		}
+	/* We should intercept certain generic commands and only pass control
+	 * to the method-specific ctrl() function if it's something we don't
+	 * handle. */
+	switch(cmd)
+		{
+	case DSO_CTRL_GET_FLAGS:
+		return dso->flags;
+	case DSO_CTRL_SET_FLAGS:
+		dso->flags = (int)larg;
+		return(0);
+	case DSO_CTRL_OR_FLAGS:
+		dso->flags |= (int)larg;
+		return(0);
+	default:
+		break;
+		}
+	if((dso->meth == NULL) || (dso->meth->dso_ctrl == NULL))
+		{
+		DSOerr(DSO_F_DSO_CTRL,DSO_R_UNSUPPORTED);
+		return(-1);
+		}
+	return(dso->meth->dso_ctrl(dso,cmd,larg,parg));
+	}
+
+EXPORT_C int DSO_set_name_converter(DSO *dso, DSO_NAME_CONVERTER_FUNC cb,
+			DSO_NAME_CONVERTER_FUNC *oldcb)
+	{
+	if(dso == NULL)
+		{
+		DSOerr(DSO_F_DSO_SET_NAME_CONVERTER,
+				ERR_R_PASSED_NULL_PARAMETER);
+		return(0);
+		}
+	if(oldcb)
+		*oldcb = dso->name_converter;
+	dso->name_converter = cb;
+	return(1);
+	}
+
+EXPORT_C const char *DSO_get_filename(DSO *dso)
+	{
+	if(dso == NULL)
+		{
+		DSOerr(DSO_F_DSO_GET_FILENAME,ERR_R_PASSED_NULL_PARAMETER);
+		return(NULL);
+		}
+	return(dso->filename);
+	}
+
+EXPORT_C int DSO_set_filename(DSO *dso, const char *filename)
+	{
+	char *copied;
+
+	if((dso == NULL) || (filename == NULL))
+		{
+		DSOerr(DSO_F_DSO_SET_FILENAME,ERR_R_PASSED_NULL_PARAMETER);
+		return(0);
+		}
+	if(dso->loaded_filename)
+		{
+		DSOerr(DSO_F_DSO_SET_FILENAME,DSO_R_DSO_ALREADY_LOADED);
+		return(0);
+		}
+	/* We'll duplicate filename */
+	copied = OPENSSL_malloc(strlen(filename) + 1);
+	if(copied == NULL)
+		{
+		DSOerr(DSO_F_DSO_SET_FILENAME,ERR_R_MALLOC_FAILURE);
+		return(0);
+		}
+	BUF_strlcpy(copied, filename, strlen(filename) + 1);
+	if(dso->filename)
+		OPENSSL_free(dso->filename);
+	dso->filename = copied;
+	return(1);
+	}
+
+EXPORT_C char *DSO_merge(DSO *dso, const char *filespec1, const char *filespec2)
+	{
+	char *result = NULL;
+
+	if(dso == NULL || filespec1 == NULL)
+		{
+		DSOerr(DSO_F_DSO_MERGE,ERR_R_PASSED_NULL_PARAMETER);
+		return(NULL);
+		}
+	if(filespec1 == NULL)
+		filespec1 = dso->filename;
+	if(filespec1 == NULL)
+		{
+		DSOerr(DSO_F_DSO_MERGE,DSO_R_NO_FILE_SPECIFICATION);
+		return(NULL);
+		}
+	if((dso->flags & DSO_FLAG_NO_NAME_TRANSLATION) == 0)
+		{
+		if(dso->merger != NULL)
+			result = dso->merger(dso, filespec1, filespec2);
+		else if(dso->meth->dso_merger != NULL)
+			result = dso->meth->dso_merger(dso,
+				filespec1, filespec2);
+		}
+	return(result);
+	}
+
+EXPORT_C char *DSO_convert_filename(DSO *dso, const char *filename)
+	{
+	char *result = NULL;
+
+	if(dso == NULL)
+		{
+		DSOerr(DSO_F_DSO_CONVERT_FILENAME,ERR_R_PASSED_NULL_PARAMETER);
+		return(NULL);
+		}
+	if(filename == NULL)
+		filename = dso->filename;
+	if(filename == NULL)
+		{
+		DSOerr(DSO_F_DSO_CONVERT_FILENAME,DSO_R_NO_FILENAME);
+		return(NULL);
+		}
+	if((dso->flags & DSO_FLAG_NO_NAME_TRANSLATION) == 0)
+		{
+		if(dso->name_converter != NULL)
+			result = dso->name_converter(dso, filename);
+		else if(dso->meth->dso_name_converter != NULL)
+			result = dso->meth->dso_name_converter(dso, filename);
+		}
+	if(result == NULL)
+		{
+		result = OPENSSL_malloc(strlen(filename) + 1);
+		if(result == NULL)
+			{
+			DSOerr(DSO_F_DSO_CONVERT_FILENAME,
+					ERR_R_MALLOC_FAILURE);
+			return(NULL);
+			}
+		BUF_strlcpy(result, filename, strlen(filename) + 1);
+		}
+	return(result);
+	}
+
+EXPORT_C const char *DSO_get_loaded_filename(DSO *dso)
+	{
+	if(dso == NULL)
+		{
+		DSOerr(DSO_F_DSO_GET_LOADED_FILENAME,
+				ERR_R_PASSED_NULL_PARAMETER);
+		return(NULL);
+		}
+	return(dso->loaded_filename);
+	}