test/testdate.c

   1 /* This program tests the date_parse_http routine in ../main/util_date.c.
   2  *
   3  * It is only semiautomated in that I would run it, modify the code to
   4  * use a different algorithm or seed, recompile and run again, etc.
   5  * Obviously it should use an argument for that, but I never got around
   6  * to changing the implementation.
   7  *
   8  *     gcc -g -O2 -I../main -o test_date ../main/util_date.o test_date.c
   9  *     test_date | egrep '^No '
  10  *
  11  * Roy Fielding, 1996
  12  */
  13
  14 #include <stdio.h>
  15 #include <stdlib.h>
  16 #include <time.h>
  17 #include "apr_date.h"
  18
  19 #ifndef srand48
  20 #define srand48 srandom
  21 #endif
  22
  23 #ifndef mrand48
  24 #define mrand48 random
  25 #endif
  26
  27 void gm_timestr_822(char *ts, apr_time_t sec);
  28 void gm_timestr_850(char *ts, apr_time_t sec);
  29 void gm_timestr_ccc(char *ts, apr_time_t sec);
  30
  31 static const apr_time_t year2secs[] = {
  32              0LL,    /* 1970 */
  33       31536000LL,    /* 1971 */
  34       63072000LL,    /* 1972 */
  35       94694400LL,    /* 1973 */
  36      126230400LL,    /* 1974 */
  37      157766400LL,    /* 1975 */
  38      189302400LL,    /* 1976 */
  39      220924800LL,    /* 1977 */
  40      252460800LL,    /* 1978 */
  41      283996800LL,    /* 1979 */
  42      315532800LL,    /* 1980 */
  43      347155200LL,    /* 1981 */
  44      378691200LL,    /* 1982 */
  45      410227200LL,    /* 1983 */
  46      441763200LL,    /* 1984 */
  47      473385600LL,    /* 1985 */
  48      504921600LL,    /* 1986 */
  49      536457600LL,    /* 1987 */
  50      567993600LL,    /* 1988 */
  51      599616000LL,    /* 1989 */
  52      631152000LL,    /* 1990 */
  53      662688000LL,    /* 1991 */
  54      694224000LL,    /* 1992 */
  55      725846400LL,    /* 1993 */
  56      757382400LL,    /* 1994 */
  57      788918400LL,    /* 1995 */
  58      820454400LL,    /* 1996 */
  59      852076800LL,    /* 1997 */
  60      883612800LL,    /* 1998 */
  61      915148800LL,    /* 1999 */
  62      946684800LL,    /* 2000 */
  63      978307200LL,    /* 2001 */
  64     1009843200LL,    /* 2002 */
  65     1041379200LL,    /* 2003 */
  66     1072915200LL,    /* 2004 */
  67     1104537600LL,    /* 2005 */
  68     1136073600LL,    /* 2006 */
  69     1167609600LL,    /* 2007 */
  70     1199145600LL,    /* 2008 */
  71     1230768000LL,    /* 2009 */
  72     1262304000LL,    /* 2010 */
  73     1293840000LL,    /* 2011 */
  74     1325376000LL,    /* 2012 */
  75     1356998400LL,    /* 2013 */
  76     1388534400LL,    /* 2014 */
  77     1420070400LL,    /* 2015 */
  78     1451606400LL,    /* 2016 */
  79     1483228800LL,    /* 2017 */
  80     1514764800LL,    /* 2018 */
  81     1546300800LL,    /* 2019 */
  82     1577836800LL,    /* 2020 */
  83     1609459200LL,    /* 2021 */
  84     1640995200LL,    /* 2022 */
  85     1672531200LL,    /* 2023 */
  86     1704067200LL,    /* 2024 */
  87     1735689600LL,    /* 2025 */
  88     1767225600LL,    /* 2026 */
  89     1798761600LL,    /* 2027 */
  90     1830297600LL,    /* 2028 */
  91     1861920000LL,    /* 2029 */
  92     1893456000LL,    /* 2030 */
  93     1924992000LL,    /* 2031 */
  94     1956528000LL,    /* 2032 */
  95     1988150400LL,    /* 2033 */
  96     2019686400LL,    /* 2034 */
  97     2051222400LL,    /* 2035 */
  98     2082758400LL,    /* 2036 */
  99     2114380800LL,    /* 2037 */
 100     2145916800LL     /* 2038 */
 101 };
 102
 103 const char month_snames[12][4] = {
 104     "Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"
 105 };
 106
 107 void gm_timestr_822(char *ts, apr_time_t sec)
 108 {
 109     static const char *const days[7]=
 110         {"Sun","Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
 111     struct tm *tms;
 112     time_t ls = (time_t)sec;
 113
 114     tms = gmtime(&ls);
 115
 116     sprintf(ts, "%s, %.2d %s %d %.2d:%.2d:%.2d GMT", days[tms->tm_wday],
 117             tms->tm_mday, month_snames[tms->tm_mon], tms->tm_year + 1900,
 118             tms->tm_hour, tms->tm_min, tms->tm_sec);
 119 }
 120
 121 void gm_timestr_850(char *ts, apr_time_t sec)
 122 {
 123     static const char *const days[7]=
 124            {"Sunday","Monday", "Tuesday", "Wednesday", "Thursday", "Friday",
 125             "Saturday"};
 126     struct tm *tms;
 127     int year;
 128     time_t ls = (time_t)sec;
 129
 130     tms = gmtime(&ls);
 131
 132     year = tms->tm_year;
 133     if (year >= 100) year -= 100;
 134
 135     sprintf(ts, "%s, %.2d-%s-%.2d %.2d:%.2d:%.2d GMT", days[tms->tm_wday],
 136             tms->tm_mday, month_snames[tms->tm_mon], year,
 137             tms->tm_hour, tms->tm_min, tms->tm_sec);
 138 }
 139
 140 void gm_timestr_ccc(char *ts, apr_time_t sec)
 141 {
 142     static const char *const days[7]=
 143        {"Sun","Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
 144     struct tm *tms;
 145     time_t ls = (time_t)sec;
 146
 147     tms = gmtime(&ls);
 148
 149     sprintf(ts, "%s %s %2d %.2d:%.2d:%.2d %d", days[tms->tm_wday],
 150             month_snames[tms->tm_mon], tms->tm_mday,
 151             tms->tm_hour, tms->tm_min, tms->tm_sec, tms->tm_year + 1900);
 152 }
 153
 154 int main (void)
 155 {
 156     int year, i;
 157     apr_time_t guess;
 158     apr_time_t offset = 0;
 159  /* apr_time_t offset = 0; */
 160  /* apr_time_t offset = ((31 + 28) * 24 * 3600) - 1; */
 161     apr_time_t secstodate, newsecs;
 162     char datestr[50];
 163
 164     for (year = 1970; year < 2038; ++year) {
 165         secstodate = year2secs[year - 1970] + offset;
 166         gm_timestr_822(datestr, secstodate);
 167         secstodate *= APR_USEC_PER_SEC;
 168         newsecs = apr_date_parse_http(datestr);
 169         if (secstodate == newsecs)
 170             printf("Yes %4d %19" APR_TIME_T_FMT " %s\n", year, secstodate, datestr);
 171         else if (newsecs == APR_DATE_BAD)
 172             printf("No  %4d %19" APR_TIME_T_FMT " %19" APR_TIME_T_FMT " %s\n",
 173                    year, secstodate, newsecs, datestr);
 174         else
 175             printf("No* %4d %19" APR_TIME_T_FMT " %19" APR_TIME_T_FMT " %s\n",
 176                    year, secstodate, newsecs, datestr);
 177     }
 178
 179     srand48(978245L);
 180
 181     for (i = 0; i < 10000; ++i) {
 182         guess = (time_t)mrand48();
 183         if (guess < 0) guess *= -1;
 184         secstodate = guess + offset;
 185         gm_timestr_822(datestr, secstodate);
 186         secstodate *= APR_USEC_PER_SEC;
 187         newsecs = apr_date_parse_http(datestr);
 188         if (secstodate == newsecs)
 189             printf("Yes %" APR_TIME_T_FMT " %s\n", secstodate, datestr);
 190         else if (newsecs == APR_DATE_BAD)
 191             printf("No  %" APR_TIME_T_FMT " %" APR_TIME_T_FMT " %s\n",
 192                    secstodate, newsecs, datestr);
 193         else
 194             printf("No* %" APR_TIME_T_FMT " %" APR_TIME_T_FMT " %s\n",
 195                    secstodate, newsecs, datestr);
 196     }
 197     exit(0);
 198 }