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Merge from internat.freebsd.org repo, minus change to rsa_eay.c (missing)

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Reorganize and unify libcrypto's interface so that the RSA implementation
is chosen at runtime via dlopen().

This is a checkpoint and may require more tweaks still.
This commit is contained in:
Peter Wemm 2000-02-26 13:19:18 +00:00
parent a786a19657
commit 4198e0cb8b
1 changed files with 121 additions and 0 deletions
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121
crypto/openssl/crypto/rsa/rsa_stubs.c Normal file
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/*-
* Copyright (c) 2000 Peter Wemm <peter@FreeBSD.org>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS 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 AUTHOR OR 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. SO THERE.
*
* $FreeBSD$
*/
#ifndef NO_RSA
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/rsa.h>
#ifdef PIC
#include <dlfcn.h>
#define RSAUSA_SHLIB "librsaUSA.so"
#define RSAINTL_SHLIB "librsaINTL.so"
#define VERBOSE_STUBS /* undef if you don't want missing rsaref reported */
static void *
getsym(const char *sym)
{
static void *rsalib;
static int whined;
void *ret = NULL;
if (!rsalib)
rsalib = dlopen(RSAINTL_SHLIB, RTLD_LAZY);
if (!rsalib)
rsalib = dlopen(RSAUSA_SHLIB, RTLD_LAZY);
if (rsalib)
ret = dlsym(rsalib, sym);
#ifdef VERBOSE_STUBS
if (!ret && !whined) {
fprintf(stderr, "** %s: Unable to find an rsa implemenation shared library.\n", sym);
fprintf(stderr, "** Install either the USA (%s) or International (%s)\n", RSAINTL_SHLIB, RSAUSA_SHLIB);
fprintf(stderr, "** RSA library on your system and run this program again\n");
whined = 1;
}
#endif
return ret;
}
RSA_METHOD *
RSA_PKCS1_stub(void)
{
static RSA_METHOD * (*sym)(void);
if (sym || (sym = getsym("RSA_PKCS1")))
return sym();
return NULL;
}
__weak_reference(RSA_PKCS1_stub, RSA_PKCS1);
void
ERR_load_RSA_strings_stub(void)
{
static void (*sym)(void);
if (sym || (sym = getsym("ERR_load_RSA_strings")))
sym();
}
__weak_reference(ERR_load_RSA_strings_stub, ERR_load_RSA_strings);
#else /* !PIC */
RSA_METHOD *
RSA_PKCS1_stub(void)
{
#ifdef VERBOSE_STUBS
static int whined;
if (!whined) {
fprintf(stderr, "** This program was statically linked without any RSA implemenation!\n\n");
whined = 1;
}
#endif
return NULL;
}
__weak_reference(RSA_PKCS1_stub, RSA_PKCS1);
__warn_references(RSA_PKCS1_stub, "Using stub RSA glue");
void
ERR_load_RSA_strings_stub(void)
{
#ifdef VERBOSE_STUBS
static int whined;
if (!whined) {
fprintf(stderr, "** This program was statically linked without any RSA implemenation!\n\n");
whined = 1;
}
#endif
}
__weak_reference(ERR_load_RSA_strings_stub, ERR_load_RSA_strings);
__warn_references(ERR_load_RSA_strings_stub, "Using stub RSA glue");
#endif /* !PIC */
#endif /* NO_RSA */