1 /* $NetBSD: t_strptime.c,v 1.17 2024/03/26 21:52:23 rillig Exp $ */
2
3 /*-
4 * Copyright (c) 1998, 2008 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by David Laight.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __COPYRIGHT("@(#) Copyright (c) 2008\
34 The NetBSD Foundation, inc. All rights reserved.");
35 __RCSID("$NetBSD: t_strptime.c,v 1.17 2024/03/26 21:52:23 rillig Exp $");
36
37 #include <errno.h>
38 #include <inttypes.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <time.h>
42
43 #include <atf-c.h>
44
45 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)46 h_pass(const char *buf, const char *fmt, int len,
47 int tm_sec, int tm_min, int tm_hour, int tm_mday,
48 int tm_mon, int tm_year, int tm_wday, int tm_yday)
49 {
50 struct tm tm = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, NULL };
51 const char *ret, *exp;
52
53 exp = buf + len;
54 ret = strptime(buf, fmt, &tm);
55
56 ATF_CHECK_MSG(ret == exp,
57 "strptime(\"%s\", \"%s\", tm): incorrect return code: "
58 "expected: %p, got: %p", buf, fmt, exp, ret);
59
60 #define H_REQUIRE_FIELD(field) \
61 ATF_CHECK_MSG(tm.field == field, \
62 "strptime(\"%s\", \"%s\", tm): incorrect %s: " \
63 "expected: %d, but got: %d", buf, fmt, \
64 ___STRING(field), field, tm.field)
65
66 H_REQUIRE_FIELD(tm_sec);
67 H_REQUIRE_FIELD(tm_min);
68 H_REQUIRE_FIELD(tm_hour);
69 H_REQUIRE_FIELD(tm_mday);
70 H_REQUIRE_FIELD(tm_mon);
71 H_REQUIRE_FIELD(tm_year);
72 H_REQUIRE_FIELD(tm_wday);
73 H_REQUIRE_FIELD(tm_yday);
74
75 #undef H_REQUIRE_FIELD
76 }
77
78 static void
h_fail(const char * buf,const char * fmt)79 h_fail(const char *buf, const char *fmt)
80 {
81 struct tm tm = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, NULL };
82
83 ATF_CHECK_MSG(strptime(buf, fmt, &tm) == NULL, "strptime(\"%s\", "
84 "\"%s\", &tm) should fail, but it didn't", buf, fmt);
85 }
86
87 static struct {
88 const char *name;
89 long offs;
90 } zt[] = {
91 { "Z", 0 },
92 { "UT", 0 },
93 { "UTC", 0 },
94 { "GMT", 0 },
95 { "EST", -18000 },
96 { "EDT", -14400 },
97 { "CST", -21600 },
98 { "CDT", -18000 },
99 { "MST", -25200 },
100 { "MDT", -21600 },
101 { "PST", -28800 },
102 { "PDT", -25200 },
103
104 { "VST", -1 },
105 { "VDT", -1 },
106
107 { "+03", 10800 },
108 { "-03", -10800 },
109 { "+0403", 14580 },
110 { "-0403", -14580 },
111 { "+04:03", 14580 },
112 { "-04:03", -14580 },
113 { "+14:00", 50400 },
114 { "-14:00", -50400 },
115 { "+23:59", 86340 },
116 { "-23:59", -86340 },
117
118 { "1", -1 },
119 { "03", -1 },
120 { "0304", -1 },
121 { "+1", -1 },
122 { "-203", -1 },
123 { "+12345", -1 },
124 { "+12:345", -1 },
125 { "+123:45", -1 },
126 { "+2400", -1 },
127 { "-2400", -1 },
128 { "+1060", -1 },
129 { "-1060", -1 },
130
131 { "A", 3600 },
132 { "B", 7200 },
133 { "C", 10800 },
134 { "D", 14400 },
135 { "E", 18000 },
136 { "F", 21600 },
137 { "G", 25200 },
138 { "H", 28800 },
139 { "I", 32400 },
140 { "L", 39600 },
141 { "M", 43200 },
142 { "N", -3600 },
143 { "O", -7200 },
144 { "P", -10800 },
145 { "Q", -14400 },
146 { "R", -18000 },
147 { "T", -25200 },
148 { "U", -28800 },
149 { "V", -32400 },
150 { "W", -36000 },
151 { "X", -39600 },
152 { "Y", -43200 },
153
154 { "J", -2 },
155
156 { "America/Los_Angeles", -28800 },
157 { "America/New_York", -18000 },
158 { "EST4EDT", -14400 },
159
160 { "Bogus", -1 },
161 };
162
163 static void
ztest1(const char * name,const char * fmt,long value)164 ztest1(const char *name, const char *fmt, long value)
165 {
166 struct tm tm;
167 char *rv;
168
169 memset(&tm, 0, sizeof(tm));
170 if ((rv = strptime(name, fmt, &tm)) == NULL)
171 tm.tm_gmtoff = -1;
172 else if (rv == name && fmt[1] == 'Z')
173 value = 0;
174
175 switch (value) {
176 case -2:
177 value = -timezone;
178 break;
179 case -1:
180 if (fmt[1] == 'Z')
181 value = 0;
182 break;
183 default:
184 break;
185 }
186
187 ATF_CHECK_MSG(tm.tm_gmtoff == value,
188 "strptime(\"%s\", \"%s\", &tm): "
189 "expected: tm.tm_gmtoff=%ld, got: tm.tm_gmtoff=%ld",
190 name, fmt, value, tm.tm_gmtoff);
191 printf("%s %s %ld\n", name, fmt, tm.tm_gmtoff);
192 }
193
194 static void
ztest(const char * fmt)195 ztest(const char *fmt)
196 {
197 setenv("TZ", "US/Eastern", 1);
198 ztest1("GMT", fmt, 0);
199 ztest1("UTC", fmt, 0);
200 ztest1("US/Eastern", fmt, -18000);
201 for (size_t i = 0; i < __arraycount(zt); i++)
202 ztest1(zt[i].name, fmt, zt[i].offs);
203 }
204
205 ATF_TC(common);
206
ATF_TC_HEAD(common,tc)207 ATF_TC_HEAD(common, tc)
208 {
209
210 atf_tc_set_md_var(tc, "descr", "Checks strptime(3): various checks");
211 }
212
ATF_TC_BODY(common,tc)213 ATF_TC_BODY(common, tc)
214 {
215
216 h_pass("Tue Jan 20 23:27:46 1998", "%a %b %d %T %Y",
217 24, 46, 27, 23, 20, 0, 98, 2, 19);
218 h_pass("Tue Jan 20 23:27:46 1998", "%a %b %d %H:%M:%S %Y",
219 24, 46, 27, 23, 20, 0, 98, 2, 19);
220 h_pass("Tue Jan 20 23:27:46 1998", "%c",
221 24, 46, 27, 23, 20, 0, 98, 2, 19);
222 h_pass("Fri Mar 4 20:05:34 2005", "%a %b %e %H:%M:%S %Y",
223 24, 34, 5, 20, 4, 2, 105, 5, 62);
224 h_pass("5\t3 4 8pm:05:34 2005", "%w%n%m%t%d%n%k%p:%M:%S %Y",
225 21, 34, 5, 20, 4, 2, 105, 5, 62);
226 h_pass("Fri Mar 4 20:05:34 2005", "%c",
227 24, 34, 5, 20, 4, 2, 105, 5, 62);
228 }
229
230 ATF_TC(day);
231
ATF_TC_HEAD(day,tc)232 ATF_TC_HEAD(day, tc)
233 {
234
235 atf_tc_set_md_var(tc, "descr",
236 "Checks strptime(3) day name conversions [aA]");
237 }
238
ATF_TC_BODY(day,tc)239 ATF_TC_BODY(day, tc)
240 {
241
242 h_pass("Sun", "%a", 3, -1, -1, -1, -1, -1, -1, 0, -1);
243 h_pass("Sunday", "%a", 6, -1, -1, -1, -1, -1, -1, 0, -1);
244 h_pass("Mon", "%a", 3, -1, -1, -1, -1, -1, -1, 1, -1);
245 h_pass("Monday", "%a", 6, -1, -1, -1, -1, -1, -1, 1, -1);
246 h_pass("Tue", "%a", 3, -1, -1, -1, -1, -1, -1, 2, -1);
247 h_pass("Tuesday", "%a", 7, -1, -1, -1, -1, -1, -1, 2, -1);
248 h_pass("Wed", "%a", 3, -1, -1, -1, -1, -1, -1, 3, -1);
249 h_pass("Wednesday", "%a", 9, -1, -1, -1, -1, -1, -1, 3, -1);
250 h_pass("Thu", "%a", 3, -1, -1, -1, -1, -1, -1, 4, -1);
251 h_pass("Thursday", "%a", 8, -1, -1, -1, -1, -1, -1, 4, -1);
252 h_pass("Fri", "%a", 3, -1, -1, -1, -1, -1, -1, 5, -1);
253 h_pass("Friday", "%a", 6, -1, -1, -1, -1, -1, -1, 5, -1);
254 h_pass("Sat", "%a", 3, -1, -1, -1, -1, -1, -1, 6, -1);
255 h_pass("Saturday", "%a", 8, -1, -1, -1, -1, -1, -1, 6, -1);
256 h_pass("Saturn", "%a", 3, -1, -1, -1, -1, -1, -1, 6, -1);
257 h_fail("Moon", "%a");
258 h_pass("Sun", "%A", 3, -1, -1, -1, -1, -1, -1, 0, -1);
259 h_pass("Sunday", "%A", 6, -1, -1, -1, -1, -1, -1, 0, -1);
260 h_pass("Mon", "%A", 3, -1, -1, -1, -1, -1, -1, 1, -1);
261 h_pass("Monday", "%A", 6, -1, -1, -1, -1, -1, -1, 1, -1);
262 h_pass("Tue", "%A", 3, -1, -1, -1, -1, -1, -1, 2, -1);
263 h_pass("Tuesday", "%A", 7, -1, -1, -1, -1, -1, -1, 2, -1);
264 h_pass("Wed", "%A", 3, -1, -1, -1, -1, -1, -1, 3, -1);
265 h_pass("Wednesday", "%A", 9, -1, -1, -1, -1, -1, -1, 3, -1);
266 h_pass("Thu", "%A", 3, -1, -1, -1, -1, -1, -1, 4, -1);
267 h_pass("Thursday", "%A", 8, -1, -1, -1, -1, -1, -1, 4, -1);
268 h_pass("Fri", "%A", 3, -1, -1, -1, -1, -1, -1, 5, -1);
269 h_pass("Friday", "%A", 6, -1, -1, -1, -1, -1, -1, 5, -1);
270 h_pass("Sat", "%A", 3, -1, -1, -1, -1, -1, -1, 6, -1);
271 h_pass("Saturday", "%A", 8, -1, -1, -1, -1, -1, -1, 6, -1);
272 h_pass("Saturn", "%A", 3, -1, -1, -1, -1, -1, -1, 6, -1);
273 h_fail("Moon", "%A");
274
275 h_pass("mon", "%a", 3, -1, -1, -1, -1, -1, -1, 1, -1);
276 h_pass("tueSDay", "%A", 7, -1, -1, -1, -1, -1, -1, 2, -1);
277 h_pass("sunday", "%A", 6, -1, -1, -1, -1, -1, -1, 0, -1);
278 h_fail("sunday", "%EA");
279 h_pass("SaturDay", "%A", 8, -1, -1, -1, -1, -1, -1, 6, -1);
280 h_fail("SaturDay", "%OA");
281 }
282
283 ATF_TC(hour);
284
ATF_TC_HEAD(hour,tc)285 ATF_TC_HEAD(hour, tc)
286 {
287
288 atf_tc_set_md_var(tc, "descr",
289 "Checks strptime(3) hour conversions [IH]");
290 }
291
ATF_TC_BODY(hour,tc)292 ATF_TC_BODY(hour, tc)
293 {
294
295 h_fail("00", "%I");
296 h_fail("13", "%I");
297
298 h_pass("00", "%H", 2, -1, -1, 0, -1, -1, -1, -1, -1);
299 h_pass("12", "%H", 2, -1, -1, 12, -1, -1, -1, -1, -1);
300 h_pass("23", "%H", 2, -1, -1, 23, -1, -1, -1, -1, -1);
301 h_fail("24", "%H");
302 }
303
304
305 ATF_TC(month);
306
ATF_TC_HEAD(month,tc)307 ATF_TC_HEAD(month, tc)
308 {
309
310 atf_tc_set_md_var(tc, "descr",
311 "Checks strptime(3) month name conversions [bB]");
312 }
313
ATF_TC_BODY(month,tc)314 ATF_TC_BODY(month, tc)
315 {
316
317 h_pass("Jan", "%b", 3, -1, -1, -1, -1, 0, -1, -1, -1);
318 h_pass("January", "%b", 7, -1, -1, -1, -1, 0, -1, -1, -1);
319 h_pass("Feb", "%b", 3, -1, -1, -1, -1, 1, -1, -1, -1);
320 h_pass("February", "%b", 8, -1, -1, -1, -1, 1, -1, -1, -1);
321 h_pass("Mar", "%b", 3, -1, -1, -1, -1, 2, -1, -1, -1);
322 h_pass("March", "%b", 5, -1, -1, -1, -1, 2, -1, -1, -1);
323 h_pass("Apr", "%b", 3, -1, -1, -1, -1, 3, -1, -1, -1);
324 h_pass("April", "%b", 5, -1, -1, -1, -1, 3, -1, -1, -1);
325 h_pass("May", "%b", 3, -1, -1, -1, -1, 4, -1, -1, -1);
326 h_pass("Jun", "%b", 3, -1, -1, -1, -1, 5, -1, -1, -1);
327 h_pass("June", "%b", 4, -1, -1, -1, -1, 5, -1, -1, -1);
328 h_pass("Jul", "%b", 3, -1, -1, -1, -1, 6, -1, -1, -1);
329 h_pass("July", "%b", 4, -1, -1, -1, -1, 6, -1, -1, -1);
330 h_pass("Aug", "%b", 3, -1, -1, -1, -1, 7, -1, -1, -1);
331 h_pass("August", "%b", 6, -1, -1, -1, -1, 7, -1, -1, -1);
332 h_pass("Sep", "%b", 3, -1, -1, -1, -1, 8, -1, -1, -1);
333 h_pass("September", "%b", 9, -1, -1, -1, -1, 8, -1, -1, -1);
334 h_pass("Oct", "%b", 3, -1, -1, -1, -1, 9, -1, -1, -1);
335 h_pass("October", "%b", 7, -1, -1, -1, -1, 9, -1, -1, -1);
336 h_pass("Nov", "%b", 3, -1, -1, -1, -1, 10, -1, -1, -1);
337 h_pass("November", "%b", 8, -1, -1, -1, -1, 10, -1, -1, -1);
338 h_pass("Dec", "%b", 3, -1, -1, -1, -1, 11, -1, -1, -1);
339 h_pass("December", "%b", 8, -1, -1, -1, -1, 11, -1, -1, -1);
340 h_pass("Mayor", "%b", 3, -1, -1, -1, -1, 4, -1, -1, -1);
341 h_pass("Mars", "%b", 3, -1, -1, -1, -1, 2, -1, -1, -1);
342 h_fail("Rover", "%b");
343 h_pass("Jan", "%B", 3, -1, -1, -1, -1, 0, -1, -1, -1);
344 h_pass("January", "%B", 7, -1, -1, -1, -1, 0, -1, -1, -1);
345 h_pass("Feb", "%B", 3, -1, -1, -1, -1, 1, -1, -1, -1);
346 h_pass("February", "%B", 8, -1, -1, -1, -1, 1, -1, -1, -1);
347 h_pass("Mar", "%B", 3, -1, -1, -1, -1, 2, -1, -1, -1);
348 h_pass("March", "%B", 5, -1, -1, -1, -1, 2, -1, -1, -1);
349 h_pass("Apr", "%B", 3, -1, -1, -1, -1, 3, -1, -1, -1);
350 h_pass("April", "%B", 5, -1, -1, -1, -1, 3, -1, -1, -1);
351 h_pass("May", "%B", 3, -1, -1, -1, -1, 4, -1, -1, -1);
352 h_pass("Jun", "%B", 3, -1, -1, -1, -1, 5, -1, -1, -1);
353 h_pass("June", "%B", 4, -1, -1, -1, -1, 5, -1, -1, -1);
354 h_pass("Jul", "%B", 3, -1, -1, -1, -1, 6, -1, -1, -1);
355 h_pass("July", "%B", 4, -1, -1, -1, -1, 6, -1, -1, -1);
356 h_pass("Aug", "%B", 3, -1, -1, -1, -1, 7, -1, -1, -1);
357 h_pass("August", "%B", 6, -1, -1, -1, -1, 7, -1, -1, -1);
358 h_pass("Sep", "%B", 3, -1, -1, -1, -1, 8, -1, -1, -1);
359 h_pass("September", "%B", 9, -1, -1, -1, -1, 8, -1, -1, -1);
360 h_pass("Oct", "%B", 3, -1, -1, -1, -1, 9, -1, -1, -1);
361 h_pass("October", "%B", 7, -1, -1, -1, -1, 9, -1, -1, -1);
362 h_pass("Nov", "%B", 3, -1, -1, -1, -1, 10, -1, -1, -1);
363 h_pass("November", "%B", 8, -1, -1, -1, -1, 10, -1, -1, -1);
364 h_pass("Dec", "%B", 3, -1, -1, -1, -1, 11, -1, -1, -1);
365 h_pass("December", "%B", 8, -1, -1, -1, -1, 11, -1, -1, -1);
366 h_pass("Mayor", "%B", 3, -1, -1, -1, -1, 4, -1, -1, -1);
367 h_pass("Mars", "%B", 3, -1, -1, -1, -1, 2, -1, -1, -1);
368 h_fail("Rover", "%B");
369
370 h_pass("september", "%b", 9, -1, -1, -1, -1, 8, -1, -1, -1);
371 h_pass("septembe", "%B", 3, -1, -1, -1, -1, 8, -1, -1, -1);
372 }
373
374 ATF_TC(seconds);
375
ATF_TC_HEAD(seconds,tc)376 ATF_TC_HEAD(seconds, tc)
377 {
378
379 atf_tc_set_md_var(tc, "descr",
380 "Checks strptime(3) seconds conversions [S]");
381 }
382
ATF_TC_BODY(seconds,tc)383 ATF_TC_BODY(seconds, tc)
384 {
385
386 h_pass("0", "%S", 1, 0, -1, -1, -1, -1, -1, -1, -1);
387 h_pass("59", "%S", 2, 59, -1, -1, -1, -1, -1, -1, -1);
388 h_pass("60", "%S", 2, 60, -1, -1, -1, -1, -1, -1, -1);
389 h_pass("61", "%S", 2, 61, -1, -1, -1, -1, -1, -1, -1);
390 h_fail("62", "%S");
391 }
392
393 ATF_TC(year);
394
ATF_TC_HEAD(year,tc)395 ATF_TC_HEAD(year, tc)
396 {
397
398 atf_tc_set_md_var(tc, "descr",
399 "Checks strptime(3) century/year conversions [CyY]");
400 }
401
ATF_TC_BODY(year,tc)402 ATF_TC_BODY(year, tc)
403 {
404
405 h_pass("x20y", "x%Cy", 4, -1, -1, -1, -1, -1, 100, -1, -1);
406 h_pass("x84y", "x%yy", 4, -1, -1, -1, -1, -1, 84, -1, -1);
407 h_pass("x2084y", "x%C%yy", 6, -1, -1, -1, -1, -1, 184, -1, -1);
408 h_pass("x8420y", "x%y%Cy", 6, -1, -1, -1, -1, -1, 184, -1, -1);
409 h_pass("%20845", "%%%C%y5", 6, -1, -1, -1, -1, -1, 184, -1, -1);
410 h_fail("%", "%E%");
411
412 h_pass("1980", "%Y", 4, -1, -1, -1, -1, -1, 80, -1, -1);
413 h_pass("1980", "%EY", 4, -1, -1, -1, -1, -1, 80, -1, -1);
414 }
415
416 ATF_TC(zone);
417
ATF_TC_HEAD(zone,tc)418 ATF_TC_HEAD(zone, tc)
419 {
420
421 atf_tc_set_md_var(tc, "descr",
422 "Checks strptime(3) timezone conversion [z]");
423 }
424
425
ATF_TC_BODY(zone,tc)426 ATF_TC_BODY(zone, tc)
427 {
428 ztest("%z");
429 }
430
431 ATF_TC(Zone);
432
ATF_TC_HEAD(Zone,tc)433 ATF_TC_HEAD(Zone, tc)
434 {
435
436 atf_tc_set_md_var(tc, "descr",
437 "Checks strptime(3) timezone conversion [Z]");
438 }
439
440
ATF_TC_BODY(Zone,tc)441 ATF_TC_BODY(Zone, tc)
442 {
443 ztest("%Z");
444 }
445
446 ATF_TC(posixtime_overflow);
447
ATF_TC_HEAD(posixtime_overflow,tc)448 ATF_TC_HEAD(posixtime_overflow, tc)
449 {
450
451 atf_tc_set_md_var(tc, "descr",
452 "Checks strptime(3) safely rejects POSIX time overflow");
453 }
454
ATF_TC_BODY(posixtime_overflow,tc)455 ATF_TC_BODY(posixtime_overflow, tc)
456 {
457 static const uint64_t P[] = { /* cases that should pass round-trip */
458 [0] = 0,
459 [1] = 1,
460 [2] = 2,
461 [3] = 0x7ffffffe,
462 [4] = 0x7fffffff,
463 [5] = 0x80000000,
464 [6] = 0x80000001,
465 [7] = 0xfffffffe,
466 [8] = 0xffffffff,
467 [9] = 0x100000000,
468 [10] = 0x100000001,
469 [11] = 67767976233532799, /* 2147483647-12-31T23:59:59 */
470 /*
471 * Beyond this point, the year (.tm_year + 1900)
472 * overflows the signed 32-bit range, so we won't be
473 * able to test round-trips:
474 */
475 [12] = 67767976233532800,
476 [13] = 67767976233532801,
477 [14] = 67768036191676799,
478 /*
479 * Beyond this point, .tm_year itself overflows the
480 * signed 32-bit range, so strptime won't work at all;
481 * the output can't be represented in struct tm.
482 */
483 #if 0
484 [15] = 67768036191676800,
485 [16] = 67768036191676801,
486 [17] = 0x7ffffffffffffffe,
487 [18] = 0x7fffffffffffffff,
488 #endif
489 };
490 static const uint64_t F[] = { /* cases strptime should reject */
491 [0] = 67768036191676800,
492 [1] = 67768036191676801,
493 [2] = 0x7ffffffffffffffe,
494 [3] = 0x7fffffffffffffff,
495 [4] = 0x8000000000000000,
496 [5] = 0x8000000000000001,
497 [6] = 0xfffffffffffffffe,
498 [7] = 0xffffffffffffffff,
499 };
500 size_t i;
501
502 /*
503 * Verify time_t fits in uint64_t, with space to spare since
504 * it's signed.
505 */
506 __CTASSERT(__type_max(time_t) < __type_max(uint64_t));
507
508 /*
509 * Make sure we work in UTC so this test doesn't depend on
510 * which time zone your machine is configured for.
511 */
512 setenv("TZ", "UTC", 1);
513
514 /*
515 * Check the should-pass cases.
516 */
517 for (i = 0; i < __arraycount(P); i++) {
518 char buf[sizeof("18446744073709551616")];
519 int n;
520 struct tm tm;
521 time_t t;
522 int error;
523
524 /*
525 * Format the integer in decimal.
526 */
527 n = snprintf(buf, sizeof(buf), "%"PRIu64, P[i]);
528 ATF_CHECK_MSG(n >= 0 && (unsigned)n < sizeof(buf),
529 "P[%zu]: 64-bit requires %d digits", i, n);
530
531 /*
532 * Parse the time into components.
533 */
534 fprintf(stderr, "# P[%zu]: %"PRId64"\n", i, P[i]);
535 if (strptime(buf, "%s", &tm) == NULL) {
536 atf_tc_fail_nonfatal("P[%zu]: strptime failed", i);
537 continue;
538 }
539 fprintf(stderr, "tm_sec=%d\n", tm.tm_sec);
540 fprintf(stderr, "tm_min=%d\n", tm.tm_min);
541 fprintf(stderr, "tm_hour=%d\n", tm.tm_hour);
542 fprintf(stderr, "tm_mday=%d\n", tm.tm_mday);
543 fprintf(stderr, "tm_mon=%d\n", tm.tm_mon);
544 fprintf(stderr, "tm_year=%d\n", tm.tm_year);
545 fprintf(stderr, "tm_wday=%d\n", tm.tm_wday);
546 fprintf(stderr, "tm_yday=%d\n", tm.tm_yday);
547 fprintf(stderr, "tm_isdst=%d\n", tm.tm_isdst);
548 fprintf(stderr, "tm_gmtoff=%ld\n", tm.tm_gmtoff);
549 fprintf(stderr, "tm_zone=%s\n", tm.tm_zone);
550
551 /*
552 * Convert back to POSIX seconds since epoch -- unless
553 * the year number overflows signed 32-bit, in which
554 * case stop here because we can't test further.
555 */
556 if (tm.tm_year > 0x7fffffff - 1900)
557 continue;
558 t = mktime(&tm);
559 error = errno;
560 ATF_CHECK_MSG(t != -1, "P[%zu]: mktime failed: %d, %s",
561 i, error, strerror(error));
562
563 /*
564 * Verify the round-trip.
565 */
566 ATF_CHECK_EQ_MSG(P[i], (uint64_t)t,
567 "P[%zu]: %"PRId64" -> %"PRId64, i, P[i], (int64_t)t);
568 }
569
570 /*
571 * Check the should-fail cases.
572 */
573 for (i = 0; i < __arraycount(F); i++) {
574 char buf[sizeof("18446744073709551616")];
575 int n;
576
577 /*
578 * Format the integer in decimal.
579 */
580 n = snprintf(buf, sizeof(buf), "%"PRIu64, F[i]);
581 ATF_CHECK_MSG(n >= 0 && (unsigned)n < sizeof(buf),
582 "F[%zu]: 64-bit requires %d digits", i, n);
583
584 /*
585 * Verify strptime rejects this.
586 */
587 h_fail(buf, "%s");
588 }
589 }
590
ATF_TP_ADD_TCS(tp)591 ATF_TP_ADD_TCS(tp)
592 {
593
594 ATF_TP_ADD_TC(tp, common);
595 ATF_TP_ADD_TC(tp, day);
596 ATF_TP_ADD_TC(tp, hour);
597 ATF_TP_ADD_TC(tp, month);
598 ATF_TP_ADD_TC(tp, seconds);
599 ATF_TP_ADD_TC(tp, year);
600 ATF_TP_ADD_TC(tp, zone);
601 ATF_TP_ADD_TC(tp, Zone);
602 ATF_TP_ADD_TC(tp, posixtime_overflow);
603
604 return atf_no_error();
605 }
606