release/src/router/openssl/crypto/tmdiff.c

   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
  63 #ifdef TIMEB
  64 #undef WIN32
  65 #undef TIMES
  66 #endif
  67
  68 #ifndef MSDOS
  69 #  ifndef WIN32
  70 #   ifndef VXWORKS
  71 #    if !defined(VMS) || defined(__DECC)
  72 #      define TIMES
  73 #    endif
  74 #   endif
  75 #  endif
  76 #endif
  77
  78 #ifndef _IRIX
  79 #  include <time.h>
  80 #endif
  81 #ifdef TIMES
  82 #  include <sys/types.h>
  83 #  include <sys/times.h>
  84 #endif
  85
  86 /* Depending on the VMS version, the tms structure is perhaps defined.
  87    The __TMS macro will show if it was.  If it wasn't defined, we should
  88    undefine TIMES, since that tells the rest of the program how things
  89    should be handled.                           -- Richard Levitte */
  90 #if defined(VMS) && defined(__DECC) && !defined(__TMS)
  91 #undef TIMES
  92 #endif
  93
  94 #if defined(sun) || defined(__ultrix)
  95 #define _POSIX_SOURCE
  96 #include <limits.h>
  97 #include <sys/param.h>
  98 #endif
  99
 100 #if !defined(TIMES) && !defined(VXWORKS)
 101 #include <sys/timeb.h>
 102 #endif
 103
 104 #ifdef WIN32
 105 #include <windows.h>
 106 #endif
 107
 108 /* The following if from times(3) man page.  It may need to be changed */
 109 #ifndef HZ
 110 # ifndef CLK_TCK
 111 #  ifndef _BSD_CLK_TCK_ /* FreeBSD hack */
 112 #   define HZ  100.0
 113 #  else /* _BSD_CLK_TCK_ */
 114 #   define HZ ((double)_BSD_CLK_TCK_)
 115 #  endif
 116 # else /* CLK_TCK */
 117 #  define HZ ((double)CLK_TCK)
 118 # endif
 119 #endif
 120
 121 typedef struct ms_tm
 122         {
 123 #ifdef TIMES
 124         struct tms ms_tms;
 125 #else
 126 #  ifdef WIN32
 127         HANDLE thread_id;
 128         FILETIME ms_win32;
 129 #  else
 130 #    ifdef VXWORKS
 131           unsigned long ticks;
 132 #    else
 133         struct timeb ms_timeb;
 134 #    endif
 135 #  endif
 136 #endif
 137         } MS_TM;
 138
 139 char *ms_time_new(void)
 140         {
 141         MS_TM *ret;
 142
 143         ret=(MS_TM *)OPENSSL_malloc(sizeof(MS_TM));
 144         if (ret == NULL)
 145                 return(NULL);
 146         memset(ret,0,sizeof(MS_TM));
 147 #ifdef WIN32
 148         ret->thread_id=GetCurrentThread();
 149 #endif
 150         return((char *)ret);
 151         }
 152
 153 void ms_time_free(char *a)
 154         {
 155         if (a != NULL)
 156                 OPENSSL_free(a);
 157         }
 158
 159 void ms_time_get(char *a)
 160         {
 161         MS_TM *tm=(MS_TM *)a;
 162 #ifdef WIN32
 163         FILETIME tmpa,tmpb,tmpc;
 164 #endif
 165
 166 #ifdef TIMES
 167         times(&tm->ms_tms);
 168 #else
 169 #  ifdef WIN32
 170         GetThreadTimes(tm->thread_id,&tmpa,&tmpb,&tmpc,&(tm->ms_win32));
 171 #  else
 172 #    ifdef VXWORKS
 173         tm->ticks = tickGet();
 174 #    else
 175         ftime(&tm->ms_timeb);
 176 #    endif
 177 #  endif
 178 #endif
 179         }
 180
 181 double ms_time_diff(char *ap, char *bp)
 182         {
 183         MS_TM *a=(MS_TM *)ap;
 184         MS_TM *b=(MS_TM *)bp;
 185         double ret;
 186
 187 #ifdef TIMES
 188         ret=(b->ms_tms.tms_utime-a->ms_tms.tms_utime)/HZ;
 189 #else
 190 # ifdef WIN32
 191         {
 192 #ifdef __GNUC__
 193         signed long long la,lb;
 194 #else
 195         signed _int64 la,lb;
 196 #endif
 197         la=a->ms_win32.dwHighDateTime;
 198         lb=b->ms_win32.dwHighDateTime;
 199         la<<=32;
 200         lb<<=32;
 201         la+=a->ms_win32.dwLowDateTime;
 202         lb+=b->ms_win32.dwLowDateTime;
 203         ret=((double)(lb-la))/1e7;
 204         }
 205 # else
 206 #  ifdef VXWORKS
 207         ret = (double)(b->ticks - a->ticks) / (double)sysClkRateGet();
 208 #  else
 209         ret=     (double)(b->ms_timeb.time-a->ms_timeb.time)+
 210                 (((double)b->ms_timeb.millitm)-
 211                 ((double)a->ms_timeb.millitm))/1000.0;
 212 #  endif
 213 # endif
 214 #endif
 215         return((ret < 0.0000001)?0.0000001:ret);
 216         }
 217
 218 int ms_time_cmp(char *ap, char *bp)
 219         {
 220         MS_TM *a=(MS_TM *)ap,*b=(MS_TM *)bp;
 221         double d;
 222         int ret;
 223
 224 #ifdef TIMES
 225         d=(b->ms_tms.tms_utime-a->ms_tms.tms_utime)/HZ;
 226 #else
 227 # ifdef WIN32
 228         d =(b->ms_win32.dwHighDateTime&0x000fffff)*10+b->ms_win32.dwLowDateTime/1e7;
 229         d-=(a->ms_win32.dwHighDateTime&0x000fffff)*10+a->ms_win32.dwLowDateTime/1e7;
 230 # else
 231 #  ifdef VXWORKS
 232         d = (b->ticks - a->ticks);
 233 #  else
 234         d=       (double)(b->ms_timeb.time-a->ms_timeb.time)+
 235                 (((double)b->ms_timeb.millitm)-(double)a->ms_timeb.millitm)/1000.0;
 236 #  endif
 237 # endif
 238 #endif
 239         if (d == 0.0)
 240                 ret=0;
 241         else if (d < 0)
 242                 ret= -1;
 243         else
 244                 ret=1;
 245         return(ret);
 246         }
 247