-/* 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).
+/*
+ * Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
-#include <stdio.h>
-#include <openssl/crypto.h>
-#include "cryptlib.h"
-#include <openssl/dso.h>
+#include "dso_locl.h"
static DSO_METHOD *default_DSO_meth = NULL;
+static 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 = OPENSSL_zalloc(sizeof(*ret));
+ if (ret == NULL) {
+ DSOerr(DSO_F_DSO_NEW_METHOD, ERR_R_MALLOC_FAILURE);
+ return (NULL);
+ }
+ ret->meth_data = sk_void_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);
+ }
+ ret->meth = default_DSO_meth;
+ ret->references = 1;
+ ret->lock = CRYPTO_THREAD_lock_new();
+ if (ret->lock == NULL) {
+ DSOerr(DSO_F_DSO_NEW_METHOD, ERR_R_MALLOC_FAILURE);
+ sk_void_free(ret->meth_data);
+ OPENSSL_free(ret);
+ return NULL;
+ }
+
+ if ((ret->meth->init != NULL) && !ret->meth->init(ret)) {
+ DSO_free(ret);
+ ret = NULL;
+ }
+
+ return ret;
+}
+
DSO *DSO_new(void)
- {
- return(DSO_new_method(NULL));
- }
-
-void DSO_set_default_method(DSO_METHOD *meth)
- {
- default_DSO_meth = meth;
- }
-
-DSO_METHOD *DSO_get_default_method(void)
- {
- return(default_DSO_meth);
- }
-
-DSO_METHOD *DSO_get_method(DSO *dso)
- {
- return(dso->meth);
- }
-
-DSO_METHOD *DSO_set_method(DSO *dso, DSO_METHOD *meth)
- {
- DSO_METHOD *mtmp;
- mtmp = dso->meth;
- dso->meth = meth;
- return(mtmp);
- }
-
-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);
- }
+{
+ return DSO_new_method(NULL);
+}
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);
- }
+{
+ int i;
+
+ if (dso == NULL)
+ return (1);
+
+ if (CRYPTO_atomic_add(&dso->references, -1, &i, dso->lock) <= 0)
+ return 0;
+
+ REF_PRINT_COUNT("DSO", dso);
+ if (i > 0)
+ return 1;
+ REF_ASSERT_ISNT(i < 0);
+
+ 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_void_free(dso->meth_data);
+ OPENSSL_free(dso->filename);
+ OPENSSL_free(dso->loaded_filename);
+ CRYPTO_THREAD_lock_free(dso->lock);
+ OPENSSL_free(dso);
+ return 1;
+}
int DSO_flags(DSO *dso)
- {
- return((dso == NULL) ? 0 : dso->flags);
- }
-
+{
+ return ((dso == NULL) ? 0 : dso->flags);
+}
int DSO_up_ref(DSO *dso)
- {
- if (dso == NULL)
- {
- DSOerr(DSO_F_DSO_UP_REF,ERR_R_PASSED_NULL_PARAMETER);
- return(0);
- }
+{
+ int i;
- CRYPTO_add(&dso->references,1,CRYPTO_LOCK_DSO);
- return(1);
- }
+ if (dso == NULL) {
+ DSOerr(DSO_F_DSO_UP_REF, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+
+ if (CRYPTO_atomic_add(&dso->references, 1, &i, dso->lock) <= 0)
+ return 0;
+
+ REF_PRINT_COUNT("DSO", r);
+ REF_ASSERT_ISNT(i < 2);
+ return ((i > 1) ? 1 : 0);
+}
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);
- }
-
-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);
- }
+{
+ 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);
+}
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);
- }
-fprintf(stderr,"boo\n");
- 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... :-) */
+{
+ 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... :-)
+ */
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));
- }
-
-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);
- }
+{
+ 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));
+}
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);
- }
+{
+ if (dso == NULL) {
+ DSOerr(DSO_F_DSO_GET_FILENAME, ERR_R_PASSED_NULL_PARAMETER);
+ return (NULL);
+ }
+ return (dso->filename);
+}
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);
- }
+{
+ 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_strdup(filename);
+ if (copied == NULL) {
+ DSOerr(DSO_F_DSO_SET_FILENAME, ERR_R_MALLOC_FAILURE);
+ return (0);
+ }
+ OPENSSL_free(dso->filename);
+ dso->filename = copied;
+ return (1);
+}
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);
- }
+{
+ char *result = NULL;
+
+ if (dso == NULL || filespec1 == NULL) {
+ DSOerr(DSO_F_DSO_MERGE, ERR_R_PASSED_NULL_PARAMETER);
+ 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);
+}
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);
- }
-
-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);
- }
-
-int DSO_pathbyaddr(void *addr,char *path,int sz)
- {
- DSO_METHOD *meth = default_DSO_meth;
- if (meth == NULL) meth = DSO_METHOD_openssl();
- if (meth->pathbyaddr == NULL)
- {
- DSOerr(DSO_F_PATHBYADDR,DSO_R_UNSUPPORTED);
- return -1;
- }
- return (*meth->pathbyaddr)(addr,path,sz);
- }
-
-/* This function should be used with caution! It looks up symbols in
- * *all* loaded modules and if module gets unloaded by somebody else
- * attempt to dereference the pointer is doomed to have fatal
- * consequences. Primary usage for this function is to probe *core*
- * system functionality, e.g. check if getnameinfo(3) is available
- * at run-time without bothering about OS-specific details such as
- * libc.so.versioning or where does it actually reside: in libc
- * itself or libsocket. */
-DSO_FUNC_TYPE DSO_global_lookup_func(const char *name)
- {
- DSO_METHOD *meth = default_DSO_meth;
- if (meth == NULL) meth = DSO_METHOD_openssl();
- if (meth->globallookup == NULL)
- {
- DSOerr(DSO_F_GLOBAL_LOOKUP_FUNC,DSO_R_UNSUPPORTED);
- return NULL;
- }
- return (*meth->globallookup)(name);
- }
+{
+ 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_strdup(filename);
+ if (result == NULL) {
+ DSOerr(DSO_F_DSO_CONVERT_FILENAME, ERR_R_MALLOC_FAILURE);
+ return (NULL);
+ }
+ }
+ return (result);
+}
+
+void *DSO_global_lookup(const char *name)
+{
+ DSO_METHOD *meth = default_DSO_meth;
+ if (meth == NULL)
+ meth = DSO_METHOD_openssl();
+ if (meth->globallookup == NULL) {
+ DSOerr(DSO_F_DSO_GLOBAL_LOOKUP, DSO_R_UNSUPPORTED);
+ return NULL;
+ }
+ return (*meth->globallookup) (name);
+}
projects / openssl.git / blobdiff