/* $NetBSD: t_strptime.c,v 1.15.12.1 2024/03/25 14:43:30 martin Exp $ */ /*- * Copyright (c) 1998, 2008 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by David Laight. * * 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 above 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. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 FOUNDATION 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. */ #include __COPYRIGHT("@(#) Copyright (c) 2008\ The NetBSD Foundation, inc. All rights reserved."); __RCSID("$NetBSD: t_strptime.c,v 1.15.12.1 2024/03/25 14:43:30 martin Exp $"); #include #include #include #include #include #include static void h_pass(const char *buf, const char *fmt, int len, int tm_sec, int tm_min, int tm_hour, int tm_mday, int tm_mon, int tm_year, int tm_wday, int tm_yday) { struct tm tm = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, NULL }; const char *ret, *exp; exp = buf + len; ret = strptime(buf, fmt, &tm); ATF_CHECK_MSG(ret == exp, "strptime(\"%s\", \"%s\", tm): incorrect return code: " "expected: %p, got: %p", buf, fmt, exp, ret); #define H_REQUIRE_FIELD(field) \ ATF_CHECK_MSG(tm.field == field, \ "strptime(\"%s\", \"%s\", tm): incorrect %s: " \ "expected: %d, but got: %d", buf, fmt, \ ___STRING(field), field, tm.field) H_REQUIRE_FIELD(tm_sec); H_REQUIRE_FIELD(tm_min); H_REQUIRE_FIELD(tm_hour); H_REQUIRE_FIELD(tm_mday); H_REQUIRE_FIELD(tm_mon); H_REQUIRE_FIELD(tm_year); H_REQUIRE_FIELD(tm_wday); H_REQUIRE_FIELD(tm_yday); #undef H_REQUIRE_FIELD } static void h_fail(const char *buf, const char *fmt) { struct tm tm = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, NULL }; ATF_CHECK_MSG(strptime(buf, fmt, &tm) == NULL, "strptime(\"%s\", " "\"%s\", &tm) should fail, but it didn't", buf, fmt); } static struct { const char *name; long offs; } zt[] = { { "Z", 0 }, { "UT", 0 }, { "UTC", 0 }, { "GMT", 0 }, { "EST", -18000 }, { "EDT", -14400 }, { "CST", -21600 }, { "CDT", -18000 }, { "MST", -25200 }, { "MDT", -21600 }, { "PST", -28800 }, { "PDT", -25200 }, { "VST", -1 }, { "VDT", -1 }, { "+03", 10800 }, { "-03", -10800 }, { "+0403", 14580 }, { "-0403", -14580 }, { "+04:03", 14580 }, { "-04:03", -14580 }, { "+14:00", 50400 }, { "-14:00", -50400 }, { "+23:59", 86340 }, { "-23:59", -86340 }, { "1", -1 }, { "03", -1 }, { "0304", -1 }, { "+1", -1 }, { "-203", -1 }, { "+12345", -1 }, { "+12:345", -1 }, { "+123:45", -1 }, { "+2400", -1 }, { "-2400", -1 }, { "+1060", -1 }, { "-1060", -1 }, { "A", 3600 }, { "B", 7200 }, { "C", 10800 }, { "D", 14400 }, { "E", 18000 }, { "F", 21600 }, { "G", 25200 }, { "H", 28800 }, { "I", 32400 }, { "L", 39600 }, { "M", 43200 }, { "N", -3600 }, { "O", -7200 }, { "P", -10800 }, { "Q", -14400 }, { "R", -18000 }, { "T", -25200 }, { "U", -28800 }, { "V", -32400 }, { "W", -36000 }, { "X", -39600 }, { "Y", -43200 }, { "J", -2 }, { "America/Los_Angeles", -28800 }, { "America/New_York", -18000 }, { "EST4EDT", -14400 }, { "Bogus", -1 }, }; static void ztest1(const char *name, const char *fmt, long value) { struct tm tm; char *rv; memset(&tm, 0, sizeof(tm)); if ((rv = strptime(name, fmt, &tm)) == NULL) tm.tm_gmtoff = -1; else if (rv == name && fmt[1] == 'Z') value = 0; switch (value) { case -2: value = -timezone; break; case -1: if (fmt[1] == 'Z') value = 0; break; default: break; } ATF_CHECK_MSG(tm.tm_gmtoff == value, "strptime(\"%s\", \"%s\", &tm): " "expected: tm.tm_gmtoff=%ld, got: tm.tm_gmtoff=%ld", name, fmt, value, tm.tm_gmtoff); printf("%s %s %ld\n", name, fmt, tm.tm_gmtoff); } static void ztest(const char *fmt) { setenv("TZ", "US/Eastern", 1); ztest1("GMT", fmt, 0); ztest1("UTC", fmt, 0); ztest1("US/Eastern", fmt, -18000); for (size_t i = 0; i < __arraycount(zt); i++) ztest1(zt[i].name, fmt, zt[i].offs); } ATF_TC(common); ATF_TC_HEAD(common, tc) { atf_tc_set_md_var(tc, "descr", "Checks strptime(3): various checks"); } ATF_TC_BODY(common, tc) { h_pass("Tue Jan 20 23:27:46 1998", "%a %b %d %T %Y", 24, 46, 27, 23, 20, 0, 98, 2, 19); h_pass("Tue Jan 20 23:27:46 1998", "%a %b %d %H:%M:%S %Y", 24, 46, 27, 23, 20, 0, 98, 2, 19); h_pass("Tue Jan 20 23:27:46 1998", "%c", 24, 46, 27, 23, 20, 0, 98, 2, 19); h_pass("Fri Mar 4 20:05:34 2005", "%a %b %e %H:%M:%S %Y", 24, 34, 5, 20, 4, 2, 105, 5, 62); h_pass("5\t3 4 8pm:05:34 2005", "%w%n%m%t%d%n%k%p:%M:%S %Y", 21, 34, 5, 20, 4, 2, 105, 5, 62); h_pass("Fri Mar 4 20:05:34 2005", "%c", 24, 34, 5, 20, 4, 2, 105, 5, 62); } ATF_TC(day); ATF_TC_HEAD(day, tc) { atf_tc_set_md_var(tc, "descr", "Checks strptime(3) day name conversions [aA]"); } ATF_TC_BODY(day, tc) { h_pass("Sun", "%a", 3, -1, -1, -1, -1, -1, -1, 0, -1); h_pass("Sunday", "%a", 6, -1, -1, -1, -1, -1, -1, 0, -1); h_pass("Mon", "%a", 3, -1, -1, -1, -1, -1, -1, 1, -1); h_pass("Monday", "%a", 6, -1, -1, -1, -1, -1, -1, 1, -1); h_pass("Tue", "%a", 3, -1, -1, -1, -1, -1, -1, 2, -1); h_pass("Tuesday", "%a", 7, -1, -1, -1, -1, -1, -1, 2, -1); h_pass("Wed", "%a", 3, -1, -1, -1, -1, -1, -1, 3, -1); h_pass("Wednesday", "%a", 9, -1, -1, -1, -1, -1, -1, 3, -1); h_pass("Thu", "%a", 3, -1, -1, -1, -1, -1, -1, 4, -1); h_pass("Thursday", "%a", 8, -1, -1, -1, -1, -1, -1, 4, -1); h_pass("Fri", "%a", 3, -1, -1, -1, -1, -1, -1, 5, -1); h_pass("Friday", "%a", 6, -1, -1, -1, -1, -1, -1, 5, -1); h_pass("Sat", "%a", 3, -1, -1, -1, -1, -1, -1, 6, -1); h_pass("Saturday", "%a", 8, -1, -1, -1, -1, -1, -1, 6, -1); h_pass("Saturn", "%a", 3, -1, -1, -1, -1, -1, -1, 6, -1); h_fail("Moon", "%a"); h_pass("Sun", "%A", 3, -1, -1, -1, -1, -1, -1, 0, -1); h_pass("Sunday", "%A", 6, -1, -1, -1, -1, -1, -1, 0, -1); h_pass("Mon", "%A", 3, -1, -1, -1, -1, -1, -1, 1, -1); h_pass("Monday", "%A", 6, -1, -1, -1, -1, -1, -1, 1, -1); h_pass("Tue", "%A", 3, -1, -1, -1, -1, -1, -1, 2, -1); h_pass("Tuesday", "%A", 7, -1, -1, -1, -1, -1, -1, 2, -1); h_pass("Wed", "%A", 3, -1, -1, -1, -1, -1, -1, 3, -1); h_pass("Wednesday", "%A", 9, -1, -1, -1, -1, -1, -1, 3, -1); h_pass("Thu", "%A", 3, -1, -1, -1, -1, -1, -1, 4, -1); h_pass("Thursday", "%A", 8, -1, -1, -1, -1, -1, -1, 4, -1); h_pass("Fri", "%A", 3, -1, -1, -1, -1, -1, -1, 5, -1); h_pass("Friday", "%A", 6, -1, -1, -1, -1, -1, -1, 5, -1); h_pass("Sat", "%A", 3, -1, -1, -1, -1, -1, -1, 6, -1); h_pass("Saturday", "%A", 8, -1, -1, -1, -1, -1, -1, 6, -1); h_pass("Saturn", "%A", 3, -1, -1, -1, -1, -1, -1, 6, -1); h_fail("Moon", "%A"); h_pass("mon", "%a", 3, -1, -1, -1, -1, -1, -1, 1, -1); h_pass("tueSDay", "%A", 7, -1, -1, -1, -1, -1, -1, 2, -1); h_pass("sunday", "%A", 6, -1, -1, -1, -1, -1, -1, 0, -1); h_fail("sunday", "%EA"); h_pass("SaturDay", "%A", 8, -1, -1, -1, -1, -1, -1, 6, -1); h_fail("SaturDay", "%OA"); } ATF_TC(hour); ATF_TC_HEAD(hour, tc) { atf_tc_set_md_var(tc, "descr", "Checks strptime(3) hour conversions [IH]"); } ATF_TC_BODY(hour, tc) { h_fail("00", "%I"); h_fail("13", "%I"); h_pass("00", "%H", 2, -1, -1, 0, -1, -1, -1, -1, -1); h_pass("12", "%H", 2, -1, -1, 12, -1, -1, -1, -1, -1); h_pass("23", "%H", 2, -1, -1, 23, -1, -1, -1, -1, -1); h_fail("24", "%H"); } ATF_TC(month); ATF_TC_HEAD(month, tc) { atf_tc_set_md_var(tc, "descr", "Checks strptime(3) month name conversions [bB]"); } ATF_TC_BODY(month, tc) { h_pass("Jan", "%b", 3, -1, -1, -1, -1, 0, -1, -1, -1); h_pass("January", "%b", 7, -1, -1, -1, -1, 0, -1, -1, -1); h_pass("Feb", "%b", 3, -1, -1, -1, -1, 1, -1, -1, -1); h_pass("February", "%b", 8, -1, -1, -1, -1, 1, -1, -1, -1); h_pass("Mar", "%b", 3, -1, -1, -1, -1, 2, -1, -1, -1); h_pass("March", "%b", 5, -1, -1, -1, -1, 2, -1, -1, -1); h_pass("Apr", "%b", 3, -1, -1, -1, -1, 3, -1, -1, -1); h_pass("April", "%b", 5, -1, -1, -1, -1, 3, -1, -1, -1); h_pass("May", "%b", 3, -1, -1, -1, -1, 4, -1, -1, -1); h_pass("Jun", "%b", 3, -1, -1, -1, -1, 5, -1, -1, -1); h_pass("June", "%b", 4, -1, -1, -1, -1, 5, -1, -1, -1); h_pass("Jul", "%b", 3, -1, -1, -1, -1, 6, -1, -1, -1); h_pass("July", "%b", 4, -1, -1, -1, -1, 6, -1, -1, -1); h_pass("Aug", "%b", 3, -1, -1, -1, -1, 7, -1, -1, -1); h_pass("August", "%b", 6, -1, -1, -1, -1, 7, -1, -1, -1); h_pass("Sep", "%b", 3, -1, -1, -1, -1, 8, -1, -1, -1); h_pass("September", "%b", 9, -1, -1, -1, -1, 8, -1, -1, -1); h_pass("Oct", "%b", 3, -1, -1, -1, -1, 9, -1, -1, -1); h_pass("October", "%b", 7, -1, -1, -1, -1, 9, -1, -1, -1); h_pass("Nov", "%b", 3, -1, -1, -1, -1, 10, -1, -1, -1); h_pass("November", "%b", 8, -1, -1, -1, -1, 10, -1, -1, -1); h_pass("Dec", "%b", 3, -1, -1, -1, -1, 11, -1, -1, -1); h_pass("December", "%b", 8, -1, -1, -1, -1, 11, -1, -1, -1); h_pass("Mayor", "%b", 3, -1, -1, -1, -1, 4, -1, -1, -1); h_pass("Mars", "%b", 3, -1, -1, -1, -1, 2, -1, -1, -1); h_fail("Rover", "%b"); h_pass("Jan", "%B", 3, -1, -1, -1, -1, 0, -1, -1, -1); h_pass("January", "%B", 7, -1, -1, -1, -1, 0, -1, -1, -1); h_pass("Feb", "%B", 3, -1, -1, -1, -1, 1, -1, -1, -1); h_pass("February", "%B", 8, -1, -1, -1, -1, 1, -1, -1, -1); h_pass("Mar", "%B", 3, -1, -1, -1, -1, 2, -1, -1, -1); h_pass("March", "%B", 5, -1, -1, -1, -1, 2, -1, -1, -1); h_pass("Apr", "%B", 3, -1, -1, -1, -1, 3, -1, -1, -1); h_pass("April", "%B", 5, -1, -1, -1, -1, 3, -1, -1, -1); h_pass("May", "%B", 3, -1, -1, -1, -1, 4, -1, -1, -1); h_pass("Jun", "%B", 3, -1, -1, -1, -1, 5, -1, -1, -1); h_pass("June", "%B", 4, -1, -1, -1, -1, 5, -1, -1, -1); h_pass("Jul", "%B", 3, -1, -1, -1, -1, 6, -1, -1, -1); h_pass("July", "%B", 4, -1, -1, -1, -1, 6, -1, -1, -1); h_pass("Aug", "%B", 3, -1, -1, -1, -1, 7, -1, -1, -1); h_pass("August", "%B", 6, -1, -1, -1, -1, 7, -1, -1, -1); h_pass("Sep", "%B", 3, -1, -1, -1, -1, 8, -1, -1, -1); h_pass("September", "%B", 9, -1, -1, -1, -1, 8, -1, -1, -1); h_pass("Oct", "%B", 3, -1, -1, -1, -1, 9, -1, -1, -1); h_pass("October", "%B", 7, -1, -1, -1, -1, 9, -1, -1, -1); h_pass("Nov", "%B", 3, -1, -1, -1, -1, 10, -1, -1, -1); h_pass("November", "%B", 8, -1, -1, -1, -1, 10, -1, -1, -1); h_pass("Dec", "%B", 3, -1, -1, -1, -1, 11, -1, -1, -1); h_pass("December", "%B", 8, -1, -1, -1, -1, 11, -1, -1, -1); h_pass("Mayor", "%B", 3, -1, -1, -1, -1, 4, -1, -1, -1); h_pass("Mars", "%B", 3, -1, -1, -1, -1, 2, -1, -1, -1); h_fail("Rover", "%B"); h_pass("september", "%b", 9, -1, -1, -1, -1, 8, -1, -1, -1); h_pass("septembe", "%B", 3, -1, -1, -1, -1, 8, -1, -1, -1); } ATF_TC(seconds); ATF_TC_HEAD(seconds, tc) { atf_tc_set_md_var(tc, "descr", "Checks strptime(3) seconds conversions [S]"); } ATF_TC_BODY(seconds, tc) { h_pass("0", "%S", 1, 0, -1, -1, -1, -1, -1, -1, -1); h_pass("59", "%S", 2, 59, -1, -1, -1, -1, -1, -1, -1); h_pass("60", "%S", 2, 60, -1, -1, -1, -1, -1, -1, -1); h_pass("61", "%S", 2, 61, -1, -1, -1, -1, -1, -1, -1); h_fail("62", "%S"); } ATF_TC(year); ATF_TC_HEAD(year, tc) { atf_tc_set_md_var(tc, "descr", "Checks strptime(3) century/year conversions [CyY]"); } ATF_TC_BODY(year, tc) { h_pass("x20y", "x%Cy", 4, -1, -1, -1, -1, -1, 100, -1, -1); h_pass("x84y", "x%yy", 4, -1, -1, -1, -1, -1, 84, -1, -1); h_pass("x2084y", "x%C%yy", 6, -1, -1, -1, -1, -1, 184, -1, -1); h_pass("x8420y", "x%y%Cy", 6, -1, -1, -1, -1, -1, 184, -1, -1); h_pass("%20845", "%%%C%y5", 6, -1, -1, -1, -1, -1, 184, -1, -1); h_fail("%", "%E%"); h_pass("1980", "%Y", 4, -1, -1, -1, -1, -1, 80, -1, -1); h_pass("1980", "%EY", 4, -1, -1, -1, -1, -1, 80, -1, -1); } ATF_TC(zone); ATF_TC_HEAD(zone, tc) { atf_tc_set_md_var(tc, "descr", "Checks strptime(3) timezone conversion [z]"); } ATF_TC_BODY(zone, tc) { ztest("%z"); } ATF_TC(Zone); ATF_TC_HEAD(Zone, tc) { atf_tc_set_md_var(tc, "descr", "Checks strptime(3) timezone conversion [Z]"); } ATF_TC_BODY(Zone, tc) { ztest("%Z"); } ATF_TC(posixtime_overflow); ATF_TC_HEAD(posixtime_overflow, tc) { atf_tc_set_md_var(tc, "descr", "Checks strptime(3) safely rejects POSIX time overfow"); } ATF_TC_BODY(posixtime_overflow, tc) { static const uint64_t P[] = { /* cases that should pass round-trip */ [0] = 0, [1] = 1, [2] = 2, [3] = 0x7ffffffe, [4] = 0x7fffffff, [5] = 0x80000000, [6] = 0x80000001, [7] = 0xfffffffe, [8] = 0xffffffff, [9] = 0x100000000, [10] = 0x100000001, [11] = 67767976233532799, /* 2147483647-12-31T23:59:59 */ /* * Beyond this point, the year (.tm_year + 1900) * overflows the signed 32-bit range, so we won't be * able to test round-trips: */ [12] = 67767976233532800, [13] = 67767976233532801, [14] = 67768036191676799, /* * Beyond this point, .tm_year itself overflows the * signed 32-bit range, so strptime won't work at all; * the output can't be represented in struct tm. */ #if 0 [15] = 67768036191676800, [16] = 67768036191676801, [17] = 0x7ffffffffffffffe, [18] = 0x7fffffffffffffff, #endif }; static const uint64_t F[] = { /* cases strptime should reject */ [0] = 67768036191676800, [1] = 67768036191676801, [2] = 0x7ffffffffffffffe, [3] = 0x7fffffffffffffff, [4] = 0x8000000000000000, [5] = 0x8000000000000001, [6] = 0xfffffffffffffffe, [7] = 0xffffffffffffffff, }; size_t i; /* * Verify time_t fits in uint64_t, with space to spare since * it's signed. */ __CTASSERT(__type_max(time_t) < __type_max(uint64_t)); /* * Make sure we work in UTC so this test doesn't depend on * which time zone your machine is configured for. */ setenv("TZ", "UTC", 1); /* * Check the should-pass cases. */ for (i = 0; i < __arraycount(P); i++) { char buf[sizeof("18446744073709551616")]; int n; struct tm tm; time_t t; int error; /* * Format the integer in decimal. */ n = snprintf(buf, sizeof(buf), "%"PRIu64, P[i]); ATF_CHECK_MSG(n >= 0 && (unsigned)n < sizeof(buf), "P[%zu]: 64-bit requires %d digits", i, n); /* * Parse the time into components. */ fprintf(stderr, "# P[%zu]: %"PRId64"\n", i, P[i]); if (strptime(buf, "%s", &tm) == NULL) { atf_tc_fail_nonfatal("P[%zu]: strptime failed", i); continue; } fprintf(stderr, "tm_sec=%d\n", tm.tm_sec); fprintf(stderr, "tm_min=%d\n", tm.tm_min); fprintf(stderr, "tm_hour=%d\n", tm.tm_hour); fprintf(stderr, "tm_mday=%d\n", tm.tm_mday); fprintf(stderr, "tm_mon=%d\n", tm.tm_mon); fprintf(stderr, "tm_year=%d\n", tm.tm_year); fprintf(stderr, "tm_wday=%d\n", tm.tm_wday); fprintf(stderr, "tm_yday=%d\n", tm.tm_yday); fprintf(stderr, "tm_isdst=%d\n", tm.tm_isdst); fprintf(stderr, "tm_gmtoff=%ld\n", tm.tm_gmtoff); fprintf(stderr, "tm_zone=%s\n", tm.tm_zone); /* * Convert back to POSIX seconds since epoch -- unless * the year number overflows signed 32-bit, in which * case stop here because we can't test further. */ if (tm.tm_year > 0x7fffffff - 1900) continue; t = mktime(&tm); error = errno; ATF_CHECK_MSG(t != -1, "P[%zu]: mktime failed: %d, %s", i, error, strerror(error)); /* * Verify the round-trip. */ ATF_CHECK_EQ_MSG(P[i], (uint64_t)t, "P[%zu]: %"PRId64" -> %"PRId64, i, P[i], (int64_t)t); } /* * Check the should-fail cases. */ for (i = 0; i < __arraycount(F); i++) { char buf[sizeof("18446744073709551616")]; int n; /* * Format the integer in decimal. */ n = snprintf(buf, sizeof(buf), "%"PRIu64, F[i]); ATF_CHECK_MSG(n >= 0 && (unsigned)n < sizeof(buf), "F[%zu]: 64-bit requires %d digits", i, n); /* * Verify strptime rejects this. */ h_fail(buf, "%s"); } } ATF_TP_ADD_TCS(tp) { ATF_TP_ADD_TC(tp, common); ATF_TP_ADD_TC(tp, day); ATF_TP_ADD_TC(tp, hour); ATF_TP_ADD_TC(tp, month); ATF_TP_ADD_TC(tp, seconds); ATF_TP_ADD_TC(tp, year); ATF_TP_ADD_TC(tp, zone); ATF_TP_ADD_TC(tp, Zone); ATF_TP_ADD_TC(tp, posixtime_overflow); return atf_no_error(); }