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/* This program tests the date_parse_http routine in ../main/util_date.c.
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* It is only semiautomated in that I would run it, modify the code to
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* use a different algorithm or seed, recompile and run again, etc.
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* Obviously it should use an argument for that, but I never got around
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* to changing the implementation.
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* gcc -g -O2 -I../main -o test_date ../main/util_date.o test_date.c
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* test_date | egrep '^No '
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#define srand48 srandom
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#define mrand48 random
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void gm_timestr_822(char *ts, apr_time_t sec);
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void gm_timestr_850(char *ts, apr_time_t sec);
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void gm_timestr_ccc(char *ts, apr_time_t sec);
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static const apr_time_t year2secs[] = {
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31536000LL, /* 1971 */
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63072000LL, /* 1972 */
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94694400LL, /* 1973 */
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126230400LL, /* 1974 */
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157766400LL, /* 1975 */
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189302400LL, /* 1976 */
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220924800LL, /* 1977 */
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252460800LL, /* 1978 */
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283996800LL, /* 1979 */
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315532800LL, /* 1980 */
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347155200LL, /* 1981 */
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378691200LL, /* 1982 */
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410227200LL, /* 1983 */
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441763200LL, /* 1984 */
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473385600LL, /* 1985 */
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504921600LL, /* 1986 */
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536457600LL, /* 1987 */
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567993600LL, /* 1988 */
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599616000LL, /* 1989 */
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631152000LL, /* 1990 */
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662688000LL, /* 1991 */
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694224000LL, /* 1992 */
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725846400LL, /* 1993 */
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757382400LL, /* 1994 */
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788918400LL, /* 1995 */
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820454400LL, /* 1996 */
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852076800LL, /* 1997 */
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883612800LL, /* 1998 */
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915148800LL, /* 1999 */
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946684800LL, /* 2000 */
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978307200LL, /* 2001 */
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1009843200LL, /* 2002 */
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1041379200LL, /* 2003 */
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1072915200LL, /* 2004 */
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1104537600LL, /* 2005 */
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1136073600LL, /* 2006 */
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1167609600LL, /* 2007 */
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1199145600LL, /* 2008 */
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1230768000LL, /* 2009 */
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1262304000LL, /* 2010 */
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1293840000LL, /* 2011 */
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1325376000LL, /* 2012 */
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1356998400LL, /* 2013 */
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1388534400LL, /* 2014 */
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1420070400LL, /* 2015 */
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1451606400LL, /* 2016 */
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1483228800LL, /* 2017 */
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1514764800LL, /* 2018 */
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1546300800LL, /* 2019 */
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1577836800LL, /* 2020 */
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1609459200LL, /* 2021 */
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1640995200LL, /* 2022 */
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1672531200LL, /* 2023 */
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1704067200LL, /* 2024 */
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1735689600LL, /* 2025 */
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1767225600LL, /* 2026 */
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1798761600LL, /* 2027 */
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1830297600LL, /* 2028 */
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1861920000LL, /* 2029 */
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1893456000LL, /* 2030 */
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1924992000LL, /* 2031 */
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1956528000LL, /* 2032 */
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1988150400LL, /* 2033 */
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2019686400LL, /* 2034 */
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2051222400LL, /* 2035 */
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2082758400LL, /* 2036 */
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2114380800LL, /* 2037 */
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2145916800LL /* 2038 */
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const char month_snames[12][4] = {
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"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"
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void gm_timestr_822(char *ts, apr_time_t sec)
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static const char *const days[7]=
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{"Sun","Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
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time_t ls = (time_t)sec;
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sprintf(ts, "%s, %.2d %s %d %.2d:%.2d:%.2d GMT", days[tms->tm_wday],
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tms->tm_mday, month_snames[tms->tm_mon], tms->tm_year + 1900,
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tms->tm_hour, tms->tm_min, tms->tm_sec);
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void gm_timestr_850(char *ts, apr_time_t sec)
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static const char *const days[7]=
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{"Sunday","Monday", "Tuesday", "Wednesday", "Thursday", "Friday",
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time_t ls = (time_t)sec;
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if (year >= 100) year -= 100;
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sprintf(ts, "%s, %.2d-%s-%.2d %.2d:%.2d:%.2d GMT", days[tms->tm_wday],
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tms->tm_mday, month_snames[tms->tm_mon], year,
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tms->tm_hour, tms->tm_min, tms->tm_sec);
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void gm_timestr_ccc(char *ts, apr_time_t sec)
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static const char *const days[7]=
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{"Sun","Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
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time_t ls = (time_t)sec;
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sprintf(ts, "%s %s %2d %.2d:%.2d:%.2d %d", days[tms->tm_wday],
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month_snames[tms->tm_mon], tms->tm_mday,
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tms->tm_hour, tms->tm_min, tms->tm_sec, tms->tm_year + 1900);
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apr_time_t offset = 0;
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/* apr_time_t offset = 0; */
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/* apr_time_t offset = ((31 + 28) * 24 * 3600) - 1; */
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apr_time_t secstodate, newsecs;
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for (year = 1970; year < 2038; ++year) {
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secstodate = year2secs[year - 1970] + offset;
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gm_timestr_822(datestr, secstodate);
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secstodate *= APR_USEC_PER_SEC;
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newsecs = apr_date_parse_http(datestr);
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if (secstodate == newsecs)
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printf("Yes %4d %19" APR_TIME_T_FMT " %s\n", year, secstodate, datestr);
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else if (newsecs == APR_DATE_BAD)
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printf("No %4d %19" APR_TIME_T_FMT " %19" APR_TIME_T_FMT " %s\n",
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year, secstodate, newsecs, datestr);
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printf("No* %4d %19" APR_TIME_T_FMT " %19" APR_TIME_T_FMT " %s\n",
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year, secstodate, newsecs, datestr);
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for (i = 0; i < 10000; ++i) {
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guess = (time_t)mrand48();
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if (guess < 0) guess *= -1;
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secstodate = guess + offset;
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gm_timestr_822(datestr, secstodate);
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secstodate *= APR_USEC_PER_SEC;
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newsecs = apr_date_parse_http(datestr);
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if (secstodate == newsecs)
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printf("Yes %" APR_TIME_T_FMT " %s\n", secstodate, datestr);
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else if (newsecs == APR_DATE_BAD)
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printf("No %" APR_TIME_T_FMT " %" APR_TIME_T_FMT " %s\n",
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secstodate, newsecs, datestr);
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printf("No* %" APR_TIME_T_FMT " %" APR_TIME_T_FMT " %s\n",
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secstodate, newsecs, datestr);