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1/* crypto/tmdiff.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58#include <stdio.h>
59#include <stdlib.h>
60#include "cryptlib.h"
61#include <openssl/tmdiff.h>
62#if !defined(OPENSSL_SYS_MSDOS)
63#include OPENSSL_UNISTD
64#endif
65
66#ifdef TIMEB
67#undef OPENSSL_SYS_WIN32
68#undef TIMES
69#endif
70
71#if !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN32) && !(defined(OPENSSL_SYS_VMS) || defined(__DECC)) && !defined(OPENSSL_SYS_MACOSX_RHAPSODY) && !defined(OPENSSL_SYS_VXWORKS)
72# define TIMES
73#endif
74
75#ifdef OPENSSL_SYS_NETWARE
76#undef TIMES
77#endif
78
79#if !defined(_IRIX) || defined (OPENSSL_SYS_NETWARE)
80# include <time.h>
81#endif
82#ifdef TIMES
83# include <sys/types.h>
84# include <sys/times.h>
85#endif
86
87/* Depending on the VMS version, the tms structure is perhaps defined.
88 The __TMS macro will show if it was. If it wasn't defined, we should
89 undefine TIMES, since that tells the rest of the program how things
90 should be handled. -- Richard Levitte */
91#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__TMS)
92#undef TIMES
93#endif
94
95#if defined(sun) || defined(__ultrix)
96#define _POSIX_SOURCE
97#include <limits.h>
98#include <sys/param.h>
99#endif
100
101#if !defined(TIMES) && !defined(OPENSSL_SYS_VXWORKS) && !defined(OPENSSL_SYS_NETWARE)
102#include <sys/timeb.h>
103#endif
104
105#ifdef OPENSSL_SYS_WIN32
106#include <windows.h>
107#endif
108
109/* The following if from times(3) man page. It may need to be changed */
110#ifndef HZ
111# if defined(_SC_CLK_TCK) \
112 && (!defined(OPENSSL_SYS_VMS) || __CTRL_VER >= 70000000)
113/* # define HZ ((double)sysconf(_SC_CLK_TCK)) */
114# define HZ sysconf(_SC_CLK_TCK)
115# else
116# ifndef CLK_TCK
117# ifndef _BSD_CLK_TCK_ /* FreeBSD hack */
118# define HZ 100.0
119# else /* _BSD_CLK_TCK_ */
120# define HZ ((double)_BSD_CLK_TCK_)
121# endif
122# else /* CLK_TCK */
123# define HZ ((double)CLK_TCK)
124# endif
125# endif
126#endif
127
128struct ms_tm
129 {
130#ifdef TIMES
131 struct tms ms_tms;
132#else
133# ifdef OPENSSL_SYS_WIN32
134 HANDLE thread_id;
135 FILETIME ms_win32;
136# elif defined (OPENSSL_SYS_NETWARE)
137 clock_t ms_clock;
138# else
139# ifdef OPENSSL_SYS_VXWORKS
140 unsigned long ticks;
141# else
142 struct timeb ms_timeb;
143# endif
144# endif
145#endif
146 };
147
148MS_TM *ms_time_new(void)
149 {
150 MS_TM *ret;
151
152 ret=(MS_TM *)OPENSSL_malloc(sizeof(MS_TM));
153 if (ret == NULL)
154 return(NULL);
155 memset(ret,0,sizeof(MS_TM));
156#ifdef OPENSSL_SYS_WIN32
157 ret->thread_id=GetCurrentThread();
158#endif
159 return ret;
160 }
161
162void ms_time_free(MS_TM *a)
163 {
164 if (a != NULL)
165 OPENSSL_free(a);
166 }
167
168void ms_time_get(MS_TM *tm)
169 {
170#ifdef OPENSSL_SYS_WIN32
171 FILETIME tmpa,tmpb,tmpc;
172#endif
173
174#ifdef TIMES
175 times(&tm->ms_tms);
176#else
177# ifdef OPENSSL_SYS_WIN32
178 GetThreadTimes(tm->thread_id,&tmpa,&tmpb,&tmpc,&(tm->ms_win32));
179# elif defined (OPENSSL_SYS_NETWARE)
180 tm->ms_clock = clock();
181# else
182# ifdef OPENSSL_SYS_VXWORKS
183 tm->ticks = tickGet();
184# else
185 ftime(&tm->ms_timeb);
186# endif
187# endif
188#endif
189 }
190
191double ms_time_diff(MS_TM *a, MS_TM *b)
192 {
193 double ret;
194
195#ifdef TIMES
196 ret = HZ;
197 ret = (b->ms_tms.tms_utime-a->ms_tms.tms_utime) / ret;
198#else
199# ifdef OPENSSL_SYS_WIN32
200 {
201#ifdef __GNUC__
202 signed long long la,lb;
203#else
204 signed _int64 la,lb;
205#endif
206 la=a->ms_win32.dwHighDateTime;
207 lb=b->ms_win32.dwHighDateTime;
208 la<<=32;
209 lb<<=32;
210 la+=a->ms_win32.dwLowDateTime;
211 lb+=b->ms_win32.dwLowDateTime;
212 ret=((double)(lb-la))/1e7;
213 }
214# elif defined (OPENSSL_SYS_NETWARE)
215 ret= (double)(b->ms_clock - a->ms_clock);
216# else
217# ifdef OPENSSL_SYS_VXWORKS
218 ret = (double)(b->ticks - a->ticks) / (double)sysClkRateGet();
219# else
220 ret= (double)(b->ms_timeb.time-a->ms_timeb.time)+
221 (((double)b->ms_timeb.millitm)-
222 ((double)a->ms_timeb.millitm))/1000.0;
223# endif
224# endif
225#endif
226 return((ret < 0.0000001)?0.0000001:ret);
227 }
228
229int ms_time_cmp(const MS_TM *a, const MS_TM *b)
230 {
231 double d;
232 int ret;
233
234#ifdef TIMES
235 d = HZ;
236 d = (b->ms_tms.tms_utime-a->ms_tms.tms_utime) / d;
237#else
238# ifdef OPENSSL_SYS_WIN32
239 d =(b->ms_win32.dwHighDateTime&0x000fffff)*10+b->ms_win32.dwLowDateTime/1e7;
240 d-=(a->ms_win32.dwHighDateTime&0x000fffff)*10+a->ms_win32.dwLowDateTime/1e7;
241# elif defined (OPENSSL_SYS_NETWARE)
242 d= (double)(b->ms_clock - a->ms_clock);
243# else
244# ifdef OPENSSL_SYS_VXWORKS
245 d = (b->ticks - a->ticks);
246# else
247 d= (double)(b->ms_timeb.time-a->ms_timeb.time)+
248 (((double)b->ms_timeb.millitm)-(double)a->ms_timeb.millitm)/1000.0;
249# endif
250# endif
251#endif
252 if (d == 0.0)
253 ret=0;
254 else if (d < 0)
255 ret= -1;
256 else
257 ret=1;
258 return(ret);
259 }
260
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