-/* crypto/cryptlib.c */
/* ====================================================================
* Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
*
* SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
*/
-#include "cryptlib.h"
+#include "internal/cryptlib_int.h"
#include <openssl/safestack.h>
-#if defined(OPENSSL_SYS_WIN32)
-static double SSLeay_MSVC5_hack = 0.0; /* and for VC1.5 */
-#endif
-
#if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
- defined(__INTEL__) || \
defined(__x86_64) || defined(__x86_64__) || \
defined(_M_AMD64) || defined(_M_X64)
}
# if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY)
+#include <stdio.h>
# define OPENSSL_CPUID_SETUP
-# if defined(_WIN32)
-typedef unsigned __int64 IA32CAP;
-# else
-typedef unsigned long long IA32CAP;
-# endif
+typedef uint64_t IA32CAP;
void OPENSSL_cpuid_setup(void)
{
static int trigger = 0;
}
#endif
-#if (defined(_WIN32) || defined(__CYGWIN__)) && defined(_WINDLL)
-# ifdef __CYGWIN__
-/* pick DLL_[PROCESS|THREAD]_[ATTACH|DETACH] definitions */
-# include <windows.h>
-/*
- * this has side-effect of _WIN32 getting defined, which otherwise is
- * mutually exclusive with __CYGWIN__...
- */
-# endif
-
-/*
- * All we really need to do is remove the 'error' state when a thread
- * detaches
- */
-
-BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
-{
- switch (fdwReason) {
- case DLL_PROCESS_ATTACH:
- OPENSSL_cpuid_setup();
-# if defined(_WIN32_WINNT)
- {
- IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *) hinstDLL;
- IMAGE_NT_HEADERS *nt_headers;
-
- if (dos_header->e_magic == IMAGE_DOS_SIGNATURE) {
- nt_headers = (IMAGE_NT_HEADERS *) ((char *)dos_header
- + dos_header->e_lfanew);
- if (nt_headers->Signature == IMAGE_NT_SIGNATURE &&
- hinstDLL !=
- (HINSTANCE) (nt_headers->OptionalHeader.ImageBase))
- OPENSSL_NONPIC_relocated = 1;
- }
- }
-# endif
- break;
- case DLL_THREAD_ATTACH:
- break;
- case DLL_THREAD_DETACH:
- break;
- case DLL_PROCESS_DETACH:
- break;
- }
- return (TRUE);
-}
-#endif
-
#if defined(_WIN32) && !defined(__CYGWIN__)
# include <tchar.h>
# include <signal.h>
WCHAR *name;
static union {
void *p;
- int (*f) (void);
+ FARPROC f;
} _OPENSSL_isservice = {
NULL
};
if (_OPENSSL_isservice.p == NULL) {
- HANDLE h = GetModuleHandle(NULL);
- if (h != NULL)
- _OPENSSL_isservice.p = GetProcAddress(h, "_OPENSSL_isservice");
+ HANDLE mod = GetModuleHandle(NULL);
+ if (mod != NULL)
+ _OPENSSL_isservice.f = GetProcAddress(mod, "_OPENSSL_isservice");
if (_OPENSSL_isservice.p == NULL)
_OPENSSL_isservice.p = (void *)-1;
}
} while (0);
va_start(ap, fmta);
- _vsntprintf(buf, sizeof(buf) / sizeof(TCHAR) - 1, fmt, ap);
- buf[sizeof(buf) / sizeof(TCHAR) - 1] = _T('\0');
+ _vsntprintf(buf, OSSL_NELEM(buf) - 1, fmt, ap);
+ buf[OSSL_NELEM(buf) - 1] = _T('\0');
va_end(ap);
# if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
/* this -------------v--- guards NT-specific calls */
if (check_winnt() && OPENSSL_isservice() > 0) {
- HANDLE h = RegisterEventSource(0, _T("OPENSSL"));
- const TCHAR *pmsg = buf;
- ReportEvent(h, EVENTLOG_ERROR_TYPE, 0, 0, 0, 1, 0, &pmsg, 0);
- DeregisterEventSource(h);
+ HANDLE hEventLog = RegisterEventSource(NULL, _T("OpenSSL"));
+
+ if (hEventLog != NULL) {
+ const TCHAR *pmsg = buf;
+
+ if (!ReportEvent(hEventLog, EVENTLOG_ERROR_TYPE, 0, 0, NULL,
+ 1, 0, &pmsg, NULL)) {
+#if defined(DEBUG)
+ /*
+ * We are in a situation where we tried to report a critical
+ * error and this failed for some reason. As a last resort,
+ * in debug builds, send output to the debugger or any other
+ * tool like DebugView which can monitor the output.
+ */
+ OutputDebugString(pmsg);
+#endif
+ }
+
+ (void)DeregisterEventSource(hEventLog);
+ }
} else
# endif
- MessageBox(NULL, buf, _T("OpenSSL: FATAL"), MB_OK | MB_ICONSTOP);
+ MessageBox(NULL, buf, _T("OpenSSL: FATAL"), MB_OK | MB_ICONERROR);
}
#else
void OPENSSL_showfatal(const char *fmta, ...)
{
+#ifndef OPENSSL_NO_STDIO
va_list ap;
va_start(ap, fmta);
vfprintf(stderr, fmta, ap);
va_end(ap);
+#endif
}
int OPENSSL_isservice(void)
}
#endif
-void OpenSSLDie(const char *file, int line, const char *assertion)
+void OPENSSL_die(const char *message, const char *file, int line)
{
- OPENSSL_showfatal
- ("%s(%d): OpenSSL internal error, assertion failed: %s\n", file, line,
- assertion);
+ OPENSSL_showfatal("%s:%d: OpenSSL internal error: %s\n",
+ file, line, message);
#if !defined(_WIN32) || defined(__CYGWIN__)
abort();
#else
#endif
}
-void *OPENSSL_stderr(void)
-{
- return stderr;
-}
-
-int CRYPTO_memcmp(const void *in_a, const void *in_b, size_t len)
+/* volatile unsigned char* pointers are there because
+ * 1. Accessing a variable declared volatile via a pointer
+ * that lacks a volatile qualifier causes undefined behavior.
+ * 2. When the variable itself is not volatile the compiler is
+ * not required to keep all those reads and can convert
+ * this into canonical memcmp() which doesn't read the whole block.
+ * Pointers to volatile resolve the first problem fully. The second
+ * problem cannot be resolved in any Standard-compliant way but this
+ * works the problem around. Compilers typically react to
+ * pointers to volatile by preserving the reads and writes through them.
+ * The latter is not required by the Standard if the memory pointed to
+ * is not volatile.
+ * Pointers themselves are volatile in the function signature to work
+ * around a subtle bug in gcc 4.6+ which causes writes through
+ * pointers to volatile to not be emitted in some rare,
+ * never needed in real life, pieces of code.
+ */
+int CRYPTO_memcmp(const volatile void * volatile in_a,
+ const volatile void * volatile in_b,
+ size_t len)
{
size_t i;
- const unsigned char *a = in_a;
- const unsigned char *b = in_b;
+ const volatile unsigned char *a = in_a;
+ const volatile unsigned char *b = in_b;
unsigned char x = 0;
for (i = 0; i < len; i++)
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