-/* dso_dl.c -*- mode:C; c-file-style: "eay" -*- */
/*
- * Written by Richard Levitte (richard@levitte.org) 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 "cryptlib.h"
-#include <openssl/dso.h>
+#include "dso_locl.h"
-#ifndef DSO_DL
-DSO_METHOD *DSO_METHOD_dl(void)
-{
- return NULL;
-}
-#else
+#ifdef DSO_DL
# include <dl.h>
static int dl_load(DSO *dso);
static int dl_unload(DSO *dso);
-static void *dl_bind_var(DSO *dso, const char *symname);
static DSO_FUNC_TYPE dl_bind_func(DSO *dso, const char *symname);
-# if 0
-static int dl_unbind_var(DSO *dso, char *symname, void *symptr);
-static int dl_unbind_func(DSO *dso, char *symname, DSO_FUNC_TYPE symptr);
-static int dl_init(DSO *dso);
-static int dl_finish(DSO *dso);
-static int dl_ctrl(DSO *dso, int cmd, long larg, void *parg);
-# endif
static char *dl_name_converter(DSO *dso, const char *filename);
static char *dl_merger(DSO *dso, const char *filespec1,
const char *filespec2);
"OpenSSL 'dl' shared library method",
dl_load,
dl_unload,
- dl_bind_var,
dl_bind_func,
-/* For now, "unbind" doesn't exist */
-# if 0
- NULL, /* unbind_var */
- NULL, /* unbind_func */
-# endif
NULL, /* ctrl */
dl_name_converter,
dl_merger,
dl_globallookup
};
-DSO_METHOD *DSO_METHOD_dl(void)
+DSO_METHOD *DSO_METHOD_openssl(void)
{
- return (&dso_meth_dl);
+ return &dso_meth_dl;
}
/*
(dso->flags & DSO_FLAG_NO_NAME_TRANSLATION ? 0 :
DYNAMIC_PATH), 0L);
if (ptr == NULL) {
+ char errbuf[160];
DSOerr(DSO_F_DL_LOAD, DSO_R_LOAD_FAILED);
- ERR_add_error_data(4, "filename(", filename, "): ", strerror(errno));
+ if (openssl_strerror_r(errno, errbuf, sizeof(errbuf)))
+ ERR_add_error_data(4, "filename(", filename, "): ", errbuf);
goto err;
}
if (!sk_push(dso->meth_data, (char *)ptr)) {
* (it also serves as the indicator that we are currently loaded).
*/
dso->loaded_filename = filename;
- return (1);
+ return 1;
err:
/* Cleanup! */
- if (filename != NULL)
- OPENSSL_free(filename);
+ OPENSSL_free(filename);
if (ptr != NULL)
shl_unload(ptr);
- return (0);
+ return 0;
}
static int dl_unload(DSO *dso)
shl_t ptr;
if (dso == NULL) {
DSOerr(DSO_F_DL_UNLOAD, ERR_R_PASSED_NULL_PARAMETER);
- return (0);
+ return 0;
}
if (sk_num(dso->meth_data) < 1)
- return (1);
+ return 1;
/* Is this statement legal? */
ptr = (shl_t) sk_pop(dso->meth_data);
if (ptr == NULL) {
* Should push the value back onto the stack in case of a retry.
*/
sk_push(dso->meth_data, (char *)ptr);
- return (0);
+ return 0;
}
shl_unload(ptr);
- return (1);
-}
-
-static void *dl_bind_var(DSO *dso, const char *symname)
-{
- shl_t ptr;
- void *sym;
-
- if ((dso == NULL) || (symname == NULL)) {
- DSOerr(DSO_F_DL_BIND_VAR, ERR_R_PASSED_NULL_PARAMETER);
- return (NULL);
- }
- if (sk_num(dso->meth_data) < 1) {
- DSOerr(DSO_F_DL_BIND_VAR, DSO_R_STACK_ERROR);
- return (NULL);
- }
- ptr = (shl_t) sk_value(dso->meth_data, sk_num(dso->meth_data) - 1);
- if (ptr == NULL) {
- DSOerr(DSO_F_DL_BIND_VAR, DSO_R_NULL_HANDLE);
- return (NULL);
- }
- if (shl_findsym(&ptr, symname, TYPE_UNDEFINED, &sym) < 0) {
- DSOerr(DSO_F_DL_BIND_VAR, DSO_R_SYM_FAILURE);
- ERR_add_error_data(4, "symname(", symname, "): ", strerror(errno));
- return (NULL);
- }
- return (sym);
+ return 1;
}
static DSO_FUNC_TYPE dl_bind_func(DSO *dso, const char *symname)
if ((dso == NULL) || (symname == NULL)) {
DSOerr(DSO_F_DL_BIND_FUNC, ERR_R_PASSED_NULL_PARAMETER);
- return (NULL);
+ return NULL;
}
if (sk_num(dso->meth_data) < 1) {
DSOerr(DSO_F_DL_BIND_FUNC, DSO_R_STACK_ERROR);
- return (NULL);
+ return NULL;
}
ptr = (shl_t) sk_value(dso->meth_data, sk_num(dso->meth_data) - 1);
if (ptr == NULL) {
DSOerr(DSO_F_DL_BIND_FUNC, DSO_R_NULL_HANDLE);
- return (NULL);
+ return NULL;
}
if (shl_findsym(&ptr, symname, TYPE_UNDEFINED, &sym) < 0) {
+ char errbuf[160];
DSOerr(DSO_F_DL_BIND_FUNC, DSO_R_SYM_FAILURE);
- ERR_add_error_data(4, "symname(", symname, "): ", strerror(errno));
- return (NULL);
+ if (openssl_strerror_r(errno, errbuf, sizeof(errbuf)))
+ ERR_add_error_data(4, "symname(", symname, "): ", errbuf);
+ return NULL;
}
- return ((DSO_FUNC_TYPE)sym);
+ return (DSO_FUNC_TYPE)sym;
}
static char *dl_merger(DSO *dso, const char *filespec1, const char *filespec2)
if (!filespec1 && !filespec2) {
DSOerr(DSO_F_DL_MERGER, ERR_R_PASSED_NULL_PARAMETER);
- return (NULL);
+ return NULL;
}
/*
* If the first file specification is a rooted path, it rules. same goes
* if the second file specification is missing.
*/
if (!filespec2 || filespec1[0] == '/') {
- merged = OPENSSL_malloc(strlen(filespec1) + 1);
- if (!merged) {
+ merged = OPENSSL_strdup(filespec1);
+ if (merged == NULL) {
DSOerr(DSO_F_DL_MERGER, ERR_R_MALLOC_FAILURE);
- return (NULL);
+ return NULL;
}
- strcpy(merged, filespec1);
}
/*
* If the first file specification is missing, the second one rules.
*/
else if (!filespec1) {
- merged = OPENSSL_malloc(strlen(filespec2) + 1);
- if (!merged) {
+ merged = OPENSSL_strdup(filespec2);
+ if (merged == NULL) {
DSOerr(DSO_F_DL_MERGER, ERR_R_MALLOC_FAILURE);
- return (NULL);
+ return NULL;
}
- strcpy(merged, filespec2);
} else
/*
* This part isn't as trivial as it looks. It assumes that the
spec2len = (filespec2 ? strlen(filespec2) : 0);
len = spec2len + (filespec1 ? strlen(filespec1) : 0);
- if (filespec2 && filespec2[spec2len - 1] == '/') {
+ if (spec2len && filespec2[spec2len - 1] == '/') {
spec2len--;
len--;
}
merged = OPENSSL_malloc(len + 2);
- if (!merged) {
+ if (merged == NULL) {
DSOerr(DSO_F_DL_MERGER, ERR_R_MALLOC_FAILURE);
- return (NULL);
+ return NULL;
}
strcpy(merged, filespec2);
merged[spec2len] = '/';
strcpy(&merged[spec2len + 1], filespec1);
}
- return (merged);
+ return merged;
}
/*
* elegant way to share one copy of the code would be more difficult and
* would not leave the implementations independent.
*/
-# if defined(__hpux)
-static const char extension[] = ".sl";
-# else
-static const char extension[] = ".so";
-# endif
static char *dl_name_converter(DSO *dso, const char *filename)
{
char *translated;
transform = (strstr(filename, "/") == NULL);
{
/* We will convert this to "%s.s?" or "lib%s.s?" */
- rsize += strlen(extension); /* The length of ".s?" */
+ rsize += strlen(DSO_EXTENSION); /* The length of ".s?" */
if ((DSO_flags(dso) & DSO_FLAG_NAME_TRANSLATION_EXT_ONLY) == 0)
rsize += 3; /* The length of "lib" */
}
translated = OPENSSL_malloc(rsize);
if (translated == NULL) {
DSOerr(DSO_F_DL_NAME_CONVERTER, DSO_R_NAME_TRANSLATION_FAILED);
- return (NULL);
+ return NULL;
}
if (transform) {
if ((DSO_flags(dso) & DSO_FLAG_NAME_TRANSLATION_EXT_ONLY) == 0)
- sprintf(translated, "lib%s%s", filename, extension);
+ sprintf(translated, "lib%s%s", filename, DSO_EXTENSION);
else
- sprintf(translated, "%s%s", filename, extension);
+ sprintf(translated, "%s%s", filename, DSO_EXTENSION);
} else
sprintf(translated, "%s", filename);
- return (translated);
+ return translated;
}
static int dl_pathbyaddr(void *addr, char *path, int sz)
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