ref: 9e09742e9b5789a94b7676ff5f4e01468d2f2d88
dir: /sys/src/ape/lib/openssl/crypto/tmdiff.c/
/* crypto/tmdiff.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* 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 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 acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include <stdlib.h>
#include "cryptlib.h"
#include <openssl/tmdiff.h>
#if !defined(OPENSSL_SYS_MSDOS)
#include OPENSSL_UNISTD
#endif
#ifdef TIMEB
#undef OPENSSL_SYS_WIN32
#undef TIMES
#endif
#if !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN32) && !(defined(OPENSSL_SYS_VMS) || defined(__DECC)) && !defined(OPENSSL_SYS_MACOSX_RHAPSODY) && !defined(OPENSSL_SYS_VXWORKS)
# define TIMES
#endif
#ifdef OPENSSL_SYS_NETWARE
#undef TIMES
#endif
#if !defined(_IRIX) || defined (OPENSSL_SYS_NETWARE)
# include <time.h>
#endif
#ifdef TIMES
# include <sys/types.h>
# include <sys/times.h>
#endif
/* Depending on the VMS version, the tms structure is perhaps defined.
The __TMS macro will show if it was. If it wasn't defined, we should
undefine TIMES, since that tells the rest of the program how things
should be handled. -- Richard Levitte */
#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__TMS)
#undef TIMES
#endif
#if defined(sun) || defined(__ultrix)
#define _POSIX_SOURCE
#include <limits.h>
#include <sys/param.h>
#endif
#if !defined(TIMES) && !defined(OPENSSL_SYS_VXWORKS) && !defined(OPENSSL_SYS_NETWARE)
#include <sys/timeb.h>
#endif
#ifdef OPENSSL_SYS_WIN32
#include <windows.h>
#endif
/* The following if from times(3) man page. It may need to be changed */
#ifndef HZ
# if defined(_SC_CLK_TCK) \
&& (!defined(OPENSSL_SYS_VMS) || __CTRL_VER >= 70000000)
/* # define HZ ((double)sysconf(_SC_CLK_TCK)) */
# define HZ sysconf(_SC_CLK_TCK)
# else
# ifndef CLK_TCK
# ifndef _BSD_CLK_TCK_ /* FreeBSD hack */
# define HZ 100.0
# else /* _BSD_CLK_TCK_ */
# define HZ ((double)_BSD_CLK_TCK_)
# endif
# else /* CLK_TCK */
# define HZ ((double)CLK_TCK)
# endif
# endif
#endif
struct ms_tm
{
#ifdef TIMES
struct tms ms_tms;
#else
# ifdef OPENSSL_SYS_WIN32
HANDLE thread_id;
FILETIME ms_win32;
# elif defined (OPENSSL_SYS_NETWARE)
clock_t ms_clock;
# else
# ifdef OPENSSL_SYS_VXWORKS
unsigned long ticks;
# else
struct timeb ms_timeb;
# endif
# endif
#endif
};
MS_TM *ms_time_new(void)
{
MS_TM *ret;
ret=(MS_TM *)OPENSSL_malloc(sizeof(MS_TM));
if (ret == NULL)
return(NULL);
memset(ret,0,sizeof(MS_TM));
#ifdef OPENSSL_SYS_WIN32
ret->thread_id=GetCurrentThread();
#endif
return ret;
}
void ms_time_free(MS_TM *a)
{
if (a != NULL)
OPENSSL_free(a);
}
void ms_time_get(MS_TM *tm)
{
#ifdef OPENSSL_SYS_WIN32
FILETIME tmpa,tmpb,tmpc;
#endif
#ifdef TIMES
times(&tm->ms_tms);
#else
# ifdef OPENSSL_SYS_WIN32
GetThreadTimes(tm->thread_id,&tmpa,&tmpb,&tmpc,&(tm->ms_win32));
# elif defined (OPENSSL_SYS_NETWARE)
tm->ms_clock = clock();
# else
# ifdef OPENSSL_SYS_VXWORKS
tm->ticks = tickGet();
# else
ftime(&tm->ms_timeb);
# endif
# endif
#endif
}
double ms_time_diff(MS_TM *a, MS_TM *b)
{
double ret;
#ifdef TIMES
ret = HZ;
ret = (b->ms_tms.tms_utime-a->ms_tms.tms_utime) / ret;
#else
# ifdef OPENSSL_SYS_WIN32
{
#ifdef __GNUC__
signed long long la,lb;
#else
signed _int64 la,lb;
#endif
la=a->ms_win32.dwHighDateTime;
lb=b->ms_win32.dwHighDateTime;
la<<=32;
lb<<=32;
la+=a->ms_win32.dwLowDateTime;
lb+=b->ms_win32.dwLowDateTime;
ret=((double)(lb-la))/1e7;
}
# elif defined (OPENSSL_SYS_NETWARE)
ret= (double)(b->ms_clock - a->ms_clock);
# else
# ifdef OPENSSL_SYS_VXWORKS
ret = (double)(b->ticks - a->ticks) / (double)sysClkRateGet();
# else
ret= (double)(b->ms_timeb.time-a->ms_timeb.time)+
(((double)b->ms_timeb.millitm)-
((double)a->ms_timeb.millitm))/1000.0;
# endif
# endif
#endif
return((ret < 0.0000001)?0.0000001:ret);
}
int ms_time_cmp(const MS_TM *a, const MS_TM *b)
{
double d;
int ret;
#ifdef TIMES
d = HZ;
d = (b->ms_tms.tms_utime-a->ms_tms.tms_utime) / d;
#else
# ifdef OPENSSL_SYS_WIN32
d =(b->ms_win32.dwHighDateTime&0x000fffff)*10+b->ms_win32.dwLowDateTime/1e7;
d-=(a->ms_win32.dwHighDateTime&0x000fffff)*10+a->ms_win32.dwLowDateTime/1e7;
# elif defined (OPENSSL_SYS_NETWARE)
d= (double)(b->ms_clock - a->ms_clock);
# else
# ifdef OPENSSL_SYS_VXWORKS
d = (b->ticks - a->ticks);
# else
d= (double)(b->ms_timeb.time-a->ms_timeb.time)+
(((double)b->ms_timeb.millitm)-(double)a->ms_timeb.millitm)/1000.0;
# endif
# endif
#endif
if (d == 0.0)
ret=0;
else if (d < 0)
ret= -1;
else
ret=1;
return(ret);
}