394 lines
13 KiB
C
394 lines
13 KiB
C
/* crypto/cryptlib.c */
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/* ====================================================================
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* Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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/* ====================================================================
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* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
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* ECDH support in OpenSSL originally developed by
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* SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
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*/
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#include "cryptlib.h"
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#include <openssl/safestack.h>
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#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16)
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static double SSLeay_MSVC5_hack=0.0; /* and for VC1.5 */
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#endif
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#if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
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defined(__INTEL__) || \
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defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
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unsigned int OPENSSL_ia32cap_P[2];
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unsigned int *OPENSSL_ia32cap_loc(void) { return OPENSSL_ia32cap_P; }
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#if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY)
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#define OPENSSL_CPUID_SETUP
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#if defined(_WIN32)
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typedef unsigned __int64 IA32CAP;
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#else
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typedef unsigned long long IA32CAP;
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#endif
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void OPENSSL_cpuid_setup(void)
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{ static int trigger=0;
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IA32CAP OPENSSL_ia32_cpuid(void);
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IA32CAP vec;
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char *env;
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if (trigger) return;
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trigger=1;
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if ((env=getenv("OPENSSL_ia32cap"))) {
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int off = (env[0]=='~')?1:0;
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#if defined(_WIN32)
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if (!sscanf(env+off,"%I64i",&vec)) vec = strtoul(env+off,NULL,0);
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#else
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vec = strtoull(env+off,NULL,0);
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#endif
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if (off) vec = OPENSSL_ia32_cpuid()&~vec;
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}
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else
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vec = OPENSSL_ia32_cpuid();
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/*
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* |(1<<10) sets a reserved bit to signal that variable
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* was initialized already... This is to avoid interference
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* with cpuid snippets in ELF .init segment.
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*/
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OPENSSL_ia32cap_P[0] = (unsigned int)vec|(1<<10);
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OPENSSL_ia32cap_P[1] = (unsigned int)(vec>>32);
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}
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#endif
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#else
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unsigned int *OPENSSL_ia32cap_loc(void) { return NULL; }
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#endif
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int OPENSSL_NONPIC_relocated = 0;
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#if !defined(OPENSSL_CPUID_SETUP) && !defined(OPENSSL_CPUID_OBJ)
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void OPENSSL_cpuid_setup(void) {}
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#endif
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#if (defined(_WIN32) || defined(__CYGWIN__)) && defined(_WINDLL)
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#ifdef __CYGWIN__
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/* pick DLL_[PROCESS|THREAD]_[ATTACH|DETACH] definitions */
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#include <windows.h>
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/* this has side-effect of _WIN32 getting defined, which otherwise
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* is mutually exclusive with __CYGWIN__... */
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#endif
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/* All we really need to do is remove the 'error' state when a thread
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* detaches */
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BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
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LPVOID lpvReserved)
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{
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switch(fdwReason)
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{
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case DLL_PROCESS_ATTACH:
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OPENSSL_cpuid_setup();
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#if defined(_WIN32_WINNT)
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{
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IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *)hinstDLL;
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IMAGE_NT_HEADERS *nt_headers;
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if (dos_header->e_magic==IMAGE_DOS_SIGNATURE)
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{
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nt_headers = (IMAGE_NT_HEADERS *)((char *)dos_header
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+ dos_header->e_lfanew);
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if (nt_headers->Signature==IMAGE_NT_SIGNATURE &&
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hinstDLL!=(HINSTANCE)(nt_headers->OptionalHeader.ImageBase))
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OPENSSL_NONPIC_relocated=1;
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}
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}
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#endif
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break;
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case DLL_THREAD_ATTACH:
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break;
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case DLL_THREAD_DETACH:
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break;
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case DLL_PROCESS_DETACH:
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break;
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}
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return(TRUE);
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}
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#endif
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#if defined(_WIN32) && !defined(__CYGWIN__)
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#include <tchar.h>
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#include <signal.h>
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#ifdef __WATCOMC__
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#if defined(_UNICODE) || defined(__UNICODE__)
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#define _vsntprintf _vsnwprintf
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#else
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#define _vsntprintf _vsnprintf
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#endif
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#endif
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#ifdef _MSC_VER
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#define alloca _alloca
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#endif
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#if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
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int OPENSSL_isservice(void)
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{ HWINSTA h;
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DWORD len;
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WCHAR *name;
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static union { void *p; int (*f)(void); } _OPENSSL_isservice = { NULL };
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if (_OPENSSL_isservice.p == NULL) {
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HANDLE h = GetModuleHandle(NULL);
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if (h != NULL)
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_OPENSSL_isservice.p = GetProcAddress(h,"_OPENSSL_isservice");
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if (_OPENSSL_isservice.p == NULL)
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_OPENSSL_isservice.p = (void *)-1;
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}
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if (_OPENSSL_isservice.p != (void *)-1)
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return (*_OPENSSL_isservice.f)();
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(void)GetDesktopWindow(); /* return value is ignored */
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h = GetProcessWindowStation();
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if (h==NULL) return -1;
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if (GetUserObjectInformationW (h,UOI_NAME,NULL,0,&len) ||
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GetLastError() != ERROR_INSUFFICIENT_BUFFER)
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return -1;
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if (len>512) return -1; /* paranoia */
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len++,len&=~1; /* paranoia */
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name=(WCHAR *)alloca(len+sizeof(WCHAR));
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if (!GetUserObjectInformationW (h,UOI_NAME,name,len,&len))
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return -1;
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len++,len&=~1; /* paranoia */
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name[len/sizeof(WCHAR)]=L'\0'; /* paranoia */
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#if 1
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/* This doesn't cover "interactive" services [working with real
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* WinSta0's] nor programs started non-interactively by Task
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* Scheduler [those are working with SAWinSta]. */
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if (wcsstr(name,L"Service-0x")) return 1;
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#else
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/* This covers all non-interactive programs such as services. */
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if (!wcsstr(name,L"WinSta0")) return 1;
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#endif
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else return 0;
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}
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#else
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int OPENSSL_isservice(void) { return 0; }
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#endif
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void OPENSSL_showfatal (const char *fmta,...)
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{ va_list ap;
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TCHAR buf[256];
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const TCHAR *fmt;
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#ifdef STD_ERROR_HANDLE /* what a dirty trick! */
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HANDLE h;
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if ((h=GetStdHandle(STD_ERROR_HANDLE)) != NULL &&
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GetFileType(h)!=FILE_TYPE_UNKNOWN)
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{ /* must be console application */
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int len;
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DWORD out;
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va_start (ap,fmta);
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len=_vsnprintf((char *)buf,sizeof(buf),fmta,ap);
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WriteFile(h,buf,len<0?sizeof(buf):(DWORD)len,&out,NULL);
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va_end (ap);
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return;
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}
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#endif
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if (sizeof(TCHAR)==sizeof(char))
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fmt=(const TCHAR *)fmta;
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else do
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{ int keepgoing;
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size_t len_0=strlen(fmta)+1,i;
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WCHAR *fmtw;
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fmtw = (WCHAR *)alloca(len_0*sizeof(WCHAR));
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if (fmtw == NULL) { fmt=(const TCHAR *)L"no stack?"; break; }
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#ifndef OPENSSL_NO_MULTIBYTE
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if (!MultiByteToWideChar(CP_ACP,0,fmta,len_0,fmtw,len_0))
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#endif
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for (i=0;i<len_0;i++) fmtw[i]=(WCHAR)fmta[i];
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for (i=0;i<len_0;i++)
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{ if (fmtw[i]==L'%') do
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{ keepgoing=0;
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switch (fmtw[i+1])
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{ case L'0': case L'1': case L'2': case L'3': case L'4':
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case L'5': case L'6': case L'7': case L'8': case L'9':
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case L'.': case L'*':
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case L'-': i++; keepgoing=1; break;
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case L's': fmtw[i+1]=L'S'; break;
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case L'S': fmtw[i+1]=L's'; break;
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case L'c': fmtw[i+1]=L'C'; break;
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case L'C': fmtw[i+1]=L'c'; break;
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}
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} while (keepgoing);
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}
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fmt = (const TCHAR *)fmtw;
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} while (0);
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va_start (ap,fmta);
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_vsntprintf (buf,sizeof(buf)/sizeof(TCHAR)-1,fmt,ap);
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buf [sizeof(buf)/sizeof(TCHAR)-1] = _T('\0');
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va_end (ap);
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#if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
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/* this -------------v--- guards NT-specific calls */
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if (GetVersion() < 0x80000000 && OPENSSL_isservice() > 0)
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{ HANDLE h = RegisterEventSource(0,_T("OPENSSL"));
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const TCHAR *pmsg=buf;
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ReportEvent(h,EVENTLOG_ERROR_TYPE,0,0,0,1,0,&pmsg,0);
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DeregisterEventSource(h);
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}
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else
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#endif
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MessageBox (NULL,buf,_T("OpenSSL: FATAL"),MB_OK|MB_ICONSTOP);
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}
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#else
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void OPENSSL_showfatal (const char *fmta,...)
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{ va_list ap;
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va_start (ap,fmta);
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#if defined(OPENSSL_SYS_VXWORKS)
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{
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char buf[256];
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vsnprintf(buf,sizeof(buf),fmta,ap);
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printf("%s",buf);
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}
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#else
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vfprintf (stderr,fmta,ap);
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#endif
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va_end (ap);
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}
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int OPENSSL_isservice (void) { return 0; }
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#endif
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void OpenSSLDie(const char *file,int line,const char *assertion)
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{
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OPENSSL_showfatal(
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"%s(%d): OpenSSL internal error, assertion failed: %s\n",
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file,line,assertion);
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#if !defined(_WIN32) || defined(__CYGWIN__)
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abort();
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#else
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/* Win32 abort() customarily shows a dialog, but we just did that... */
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#ifdef SIGABRT
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raise(SIGABRT);
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#endif
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_exit(3);
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#endif
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}
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#ifndef OPENSSL_FIPSCANISTER
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void *OPENSSL_stderr(void) { return stderr; }
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#endif
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