1 /* crypto/cryptlib.c */
2 /* ====================================================================
3 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
17 * 3. All advertising materials mentioning features or use of this
18 * software must display the following acknowledgment:
19 * "This product includes software developed by the OpenSSL Project
20 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23 * endorse or promote products derived from this software without
24 * prior written permission. For written permission, please contact
25 * openssl-core@openssl.org.
27 * 5. Products derived from this software may not be called "OpenSSL"
28 * nor may "OpenSSL" appear in their names without prior written
29 * permission of the OpenSSL Project.
31 * 6. Redistributions of any form whatsoever must retain the following
33 * "This product includes software developed by the OpenSSL Project
34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 * OF THE POSSIBILITY OF SUCH DAMAGE.
48 * ====================================================================
50 * This product includes cryptographic software written by Eric Young
51 * (eay@cryptsoft.com). This product includes software written by Tim
52 * Hudson (tjh@cryptsoft.com).
55 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
56 * All rights reserved.
58 * This package is an SSL implementation written
59 * by Eric Young (eay@cryptsoft.com).
60 * The implementation was written so as to conform with Netscapes SSL.
62 * This library is free for commercial and non-commercial use as long as
63 * the following conditions are aheared to. The following conditions
64 * apply to all code found in this distribution, be it the RC4, RSA,
65 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
66 * included with this distribution is covered by the same copyright terms
67 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
69 * Copyright remains Eric Young's, and as such any Copyright notices in
70 * the code are not to be removed.
71 * If this package is used in a product, Eric Young should be given attribution
72 * as the author of the parts of the library used.
73 * This can be in the form of a textual message at program startup or
74 * in documentation (online or textual) provided with the package.
76 * Redistribution and use in source and binary forms, with or without
77 * modification, are permitted provided that the following conditions
79 * 1. Redistributions of source code must retain the copyright
80 * notice, this list of conditions and the following disclaimer.
81 * 2. Redistributions in binary form must reproduce the above copyright
82 * notice, this list of conditions and the following disclaimer in the
83 * documentation and/or other materials provided with the distribution.
84 * 3. All advertising materials mentioning features or use of this software
85 * must display the following acknowledgement:
86 * "This product includes cryptographic software written by
87 * Eric Young (eay@cryptsoft.com)"
88 * The word 'cryptographic' can be left out if the rouines from the library
89 * being used are not cryptographic related :-).
90 * 4. If you include any Windows specific code (or a derivative thereof) from
91 * the apps directory (application code) you must include an acknowledgement:
92 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
94 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
95 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
97 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
98 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
99 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
100 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
101 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
102 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
103 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
106 * The licence and distribution terms for any publically available version or
107 * derivative of this code cannot be changed. i.e. this code cannot simply be
108 * copied and put under another distribution licence
109 * [including the GNU Public Licence.]
111 /* ====================================================================
112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113 * ECDH support in OpenSSL originally developed by
114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
117 #include "cryptlib.h"
118 #include <openssl/safestack.h>
120 #if defined(OPENSSL_SYS_WIN32)
121 static double SSLeay_MSVC5_hack = 0.0; /* and for VC1.5 */
124 #if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
125 defined(__INTEL__) || \
126 defined(__x86_64) || defined(__x86_64__) || \
127 defined(_M_AMD64) || defined(_M_X64)
129 extern unsigned int OPENSSL_ia32cap_P[4];
130 unsigned int *OPENSSL_ia32cap_loc(void)
132 return OPENSSL_ia32cap_P;
135 # if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY)
136 # define OPENSSL_CPUID_SETUP
138 typedef unsigned __int64 IA32CAP;
140 typedef unsigned long long IA32CAP;
142 void OPENSSL_cpuid_setup(void)
144 static int trigger = 0;
145 IA32CAP OPENSSL_ia32_cpuid(unsigned int *);
153 if ((env = getenv("OPENSSL_ia32cap"))) {
154 int off = (env[0] == '~') ? 1 : 0;
156 if (!sscanf(env + off, "%I64i", &vec))
157 vec = strtoul(env + off, NULL, 0);
159 if (!sscanf(env + off, "%lli", (long long *)&vec))
160 vec = strtoul(env + off, NULL, 0);
163 vec = OPENSSL_ia32_cpuid(OPENSSL_ia32cap_P) & ~vec;
164 else if (env[0] == ':')
165 vec = OPENSSL_ia32_cpuid(OPENSSL_ia32cap_P);
167 OPENSSL_ia32cap_P[2] = 0;
168 if ((env = strchr(env, ':'))) {
171 off = (env[0] == '~') ? 1 : 0;
172 vecx = strtoul(env + off, NULL, 0);
174 OPENSSL_ia32cap_P[2] &= ~vecx;
176 OPENSSL_ia32cap_P[2] = vecx;
179 vec = OPENSSL_ia32_cpuid(OPENSSL_ia32cap_P);
182 * |(1<<10) sets a reserved bit to signal that variable
183 * was initialized already... This is to avoid interference
184 * with cpuid snippets in ELF .init segment.
186 OPENSSL_ia32cap_P[0] = (unsigned int)vec | (1 << 10);
187 OPENSSL_ia32cap_P[1] = (unsigned int)(vec >> 32);
190 unsigned int OPENSSL_ia32cap_P[4];
194 unsigned int *OPENSSL_ia32cap_loc(void)
199 int OPENSSL_NONPIC_relocated = 0;
200 #if !defined(OPENSSL_CPUID_SETUP) && !defined(OPENSSL_CPUID_OBJ)
201 void OPENSSL_cpuid_setup(void)
206 #if (defined(_WIN32) || defined(__CYGWIN__)) && defined(_WINDLL)
208 /* pick DLL_[PROCESS|THREAD]_[ATTACH|DETACH] definitions */
209 # include <windows.h>
211 * this has side-effect of _WIN32 getting defined, which otherwise is
212 * mutually exclusive with __CYGWIN__...
217 * All we really need to do is remove the 'error' state when a thread
221 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
224 case DLL_PROCESS_ATTACH:
225 OPENSSL_cpuid_setup();
226 # if defined(_WIN32_WINNT)
228 IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *) hinstDLL;
229 IMAGE_NT_HEADERS *nt_headers;
231 if (dos_header->e_magic == IMAGE_DOS_SIGNATURE) {
232 nt_headers = (IMAGE_NT_HEADERS *) ((char *)dos_header
233 + dos_header->e_lfanew);
234 if (nt_headers->Signature == IMAGE_NT_SIGNATURE &&
236 (HINSTANCE) (nt_headers->OptionalHeader.ImageBase))
237 OPENSSL_NONPIC_relocated = 1;
242 case DLL_THREAD_ATTACH:
244 case DLL_THREAD_DETACH:
246 case DLL_PROCESS_DETACH:
253 #if defined(_WIN32) && !defined(__CYGWIN__)
257 # if defined(_UNICODE) || defined(__UNICODE__)
258 # define _vsntprintf _vsnwprintf
260 # define _vsntprintf _vsnprintf
264 # define alloca _alloca
267 # if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
268 int OPENSSL_isservice(void)
276 } _OPENSSL_isservice = {
280 if (_OPENSSL_isservice.p == NULL) {
281 HANDLE h = GetModuleHandle(NULL);
283 _OPENSSL_isservice.p = GetProcAddress(h, "_OPENSSL_isservice");
284 if (_OPENSSL_isservice.p == NULL)
285 _OPENSSL_isservice.p = (void *)-1;
288 if (_OPENSSL_isservice.p != (void *)-1)
289 return (*_OPENSSL_isservice.f) ();
291 (void)GetDesktopWindow(); /* return value is ignored */
293 h = GetProcessWindowStation();
297 if (GetUserObjectInformationW(h, UOI_NAME, NULL, 0, &len) ||
298 GetLastError() != ERROR_INSUFFICIENT_BUFFER)
302 return -1; /* paranoia */
303 len++, len &= ~1; /* paranoia */
304 name = (WCHAR *)alloca(len + sizeof(WCHAR));
305 if (!GetUserObjectInformationW(h, UOI_NAME, name, len, &len))
308 len++, len &= ~1; /* paranoia */
309 name[len / sizeof(WCHAR)] = L'\0'; /* paranoia */
312 * This doesn't cover "interactive" services [working with real
313 * WinSta0's] nor programs started non-interactively by Task Scheduler
314 * [those are working with SAWinSta].
316 if (wcsstr(name, L"Service-0x"))
319 /* This covers all non-interactive programs such as services. */
320 if (!wcsstr(name, L"WinSta0"))
327 int OPENSSL_isservice(void)
333 void OPENSSL_showfatal(const char *fmta, ...)
338 # ifdef STD_ERROR_HANDLE /* what a dirty trick! */
341 if ((h = GetStdHandle(STD_ERROR_HANDLE)) != NULL &&
342 GetFileType(h) != FILE_TYPE_UNKNOWN) {
343 /* must be console application */
348 len = _vsnprintf((char *)buf, sizeof(buf), fmta, ap);
349 WriteFile(h, buf, len < 0 ? sizeof(buf) : (DWORD) len, &out, NULL);
355 if (sizeof(TCHAR) == sizeof(char))
356 fmt = (const TCHAR *)fmta;
360 size_t len_0 = strlen(fmta) + 1, i;
363 fmtw = (WCHAR *)alloca(len_0 * sizeof(WCHAR));
365 fmt = (const TCHAR *)L"no stack?";
368 if (!MultiByteToWideChar(CP_ACP, 0, fmta, len_0, fmtw, len_0))
369 for (i = 0; i < len_0; i++)
370 fmtw[i] = (WCHAR)fmta[i];
371 for (i = 0; i < len_0; i++) {
375 switch (fmtw[i + 1]) {
407 fmt = (const TCHAR *)fmtw;
411 _vsntprintf(buf, sizeof(buf) / sizeof(TCHAR) - 1, fmt, ap);
412 buf[sizeof(buf) / sizeof(TCHAR) - 1] = _T('\0');
415 # if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
416 /* this -------------v--- guards NT-specific calls */
417 if (check_winnt() && OPENSSL_isservice() > 0) {
418 HANDLE h = RegisterEventSource(0, _T("OPENSSL"));
419 const TCHAR *pmsg = buf;
420 ReportEvent(h, EVENTLOG_ERROR_TYPE, 0, 0, 0, 1, 0, &pmsg, 0);
421 DeregisterEventSource(h);
424 MessageBox(NULL, buf, _T("OpenSSL: FATAL"), MB_OK | MB_ICONSTOP);
427 void OPENSSL_showfatal(const char *fmta, ...)
432 vfprintf(stderr, fmta, ap);
436 int OPENSSL_isservice(void)
442 void OpenSSLDie(const char *file, int line, const char *assertion)
445 ("%s(%d): OpenSSL internal error, assertion failed: %s\n", file, line,
447 #if !defined(_WIN32) || defined(__CYGWIN__)
451 * Win32 abort() customarily shows a dialog, but we just did that...
453 # if !defined(_WIN32_WCE)
460 void *OPENSSL_stderr(void)
465 int CRYPTO_memcmp(const void *in_a, const void *in_b, size_t len)
468 const unsigned char *a = in_a;
469 const unsigned char *b = in_b;
472 for (i = 0; i < len; i++)