1 /*
2 * Copyright 2010 Nexenta Systems, Inc. All rights reserved.
3 * Copyright (c) 1989 The Regents of the University of California.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms are permitted
7 * provided that the above copyright notice and this paragraph are
8 * duplicated in all such forms and that any documentation,
9 * advertising materials, and other materials related to such
10 * distribution and use acknowledge that the software was developed
11 * by the University of California, Berkeley. The name of the
12 * University may not be used to endorse or promote products derived
13 * from this software without specific prior written permission.
14 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
17 */
18
19 #include "lint.h"
20 #include "tzfile.h"
21 #include <fcntl.h>
22 #include <sys/stat.h>
23 #include <string.h>
24 #include <stdio.h>
25 #include "timelocal.h"
26
27 static char *_add(const char *, char *, const char *);
28 static char *_conv(int, const char *, char *, const char *);
29 static char *_fmt(const char *, const struct tm *, char *, const char * const);
30 static char *_yconv(int, int, int, int, char *, const char *);
31
32 extern char *tzname[];
33
34 #define IN_NONE 0
35 #define IN_SOME 1
36 #define IN_THIS 2
37 #define IN_ALL 3
38
39 #define PAD_DEFAULT 0
40 #define PAD_LESS 1
41 #define PAD_SPACE 2
42 #define PAD_ZERO 3
43
44 static const char *fmt_padding[][4] = {
45 /* DEFAULT, LESS, SPACE, ZERO */
46 #define PAD_FMT_MONTHDAY 0
47 #define PAD_FMT_HMS 0
48 #define PAD_FMT_CENTURY 0
49 #define PAD_FMT_SHORTYEAR 0
50 #define PAD_FMT_MONTH 0
51 #define PAD_FMT_WEEKOFYEAR 0
52 #define PAD_FMT_DAYOFMONTH 0
53 { "%02d", "%d", "%2d", "%02d" },
54 #define PAD_FMT_SDAYOFMONTH 1
55 #define PAD_FMT_SHMS 1
56 { "%2d", "%d", "%2d", "%02d" },
57 #define PAD_FMT_DAYOFYEAR 2
58 { "%03d", "%d", "%3d", "%03d" },
59 #define PAD_FMT_YEAR 3
60 { "%04d", "%d", "%4d", "%04d" }
61 };
62
63
64 size_t
65 strftime(char *_RESTRICT_KYWD s, size_t maxsize,
66 const char *_RESTRICT_KYWD format, const struct tm *_RESTRICT_KYWD t)
67 {
68 char *p;
69
70 tzset();
71 p = _fmt(((format == NULL) ? "%c" : format), t, s, s + maxsize);
72 if (p == s + maxsize)
73 return (0);
74 *p = '\0';
75 return (p - s);
76 }
77
78 static char *
79 _fmt(const char *format, const struct tm *t, char *pt, const char * const ptlim)
80 {
81 int Ealternative, Oalternative, PadIndex;
82 struct lc_time_T *tptr = __get_current_time_locale();
83
84 #define PADDING(x) fmt_padding[x][PadIndex]
85
86 for (; *format; ++format) {
87 if (*format == '%') {
88 Ealternative = 0;
89 Oalternative = 0;
90 PadIndex = PAD_DEFAULT;
91 label:
92 switch (*++format) {
93 case '\0':
94 --format;
95 break;
96 case 'A':
97 pt = _add((t->tm_wday < 0 ||
98 t->tm_wday >= DAYSPERWEEK) ?
99 "?" : tptr->weekday[t->tm_wday],
100 pt, ptlim);
101 continue;
102 case 'a':
113 continue;
114 case 'b':
115 case 'h':
116 pt = _add((t->tm_mon < 0 ||
117 t->tm_mon >= MONSPERYEAR) ?
118 "?" : tptr->mon[t->tm_mon],
119 pt, ptlim);
120 continue;
121 case 'C':
122 /*
123 * %C used to do a...
124 * _fmt("%a %b %e %X %Y", t);
125 * ...whereas now POSIX 1003.2 calls for
126 * something completely different.
127 * (ado, 1993-05-24)
128 */
129 pt = _yconv(t->tm_year, TM_YEAR_BASE, 1, 0,
130 pt, ptlim);
131 continue;
132 case 'c':
133 pt = _fmt(tptr->c_fmt, t, pt, ptlim);
134 continue;
135 case 'D':
136 pt = _fmt("%m/%d/%y", t, pt, ptlim);
137 continue;
138 case 'd':
139 pt = _conv(t->tm_mday,
140 PADDING(PAD_FMT_DAYOFMONTH), pt, ptlim);
141 continue;
142 case 'E':
143 if (Ealternative || Oalternative)
144 break;
145 Ealternative++;
146 goto label;
147 case 'O':
148 /*
149 * C99 locale modifiers.
150 * The sequences
151 * %Ec %EC %Ex %EX %Ey %EY
152 * %Od %oe %OH %OI %Om %OM
153 * %OS %Ou %OU %OV %Ow %OW %Oy
154 * are supposed to provide alternate
155 * representations.
156 */
157 if (Ealternative || Oalternative)
158 break;
159 Oalternative++;
160 goto label;
161 case 'e':
162 pt = _conv(t->tm_mday,
163 PADDING(PAD_FMT_SDAYOFMONTH), pt, ptlim);
164 continue;
165 case 'F':
166 pt = _fmt("%Y-%m-%d", t, pt, ptlim);
167 continue;
168 case 'H':
169 pt = _conv(t->tm_hour, PADDING(PAD_FMT_HMS),
170 pt, ptlim);
171 continue;
172 case 'I':
173 pt = _conv((t->tm_hour % 12) ?
174 (t->tm_hour % 12) : 12,
175 PADDING(PAD_FMT_HMS), pt, ptlim);
176 continue;
177 case 'j':
178 pt = _conv(t->tm_yday + 1,
179 PADDING(PAD_FMT_DAYOFYEAR), pt, ptlim);
180 continue;
181 case 'k':
182 /*
183 * This used to be...
184 * _conv(t->tm_hour % 12 ?
185 * t->tm_hour % 12 : 12, 2, ' ');
186 * ...and has been changed to the below to
206 (t->tm_hour % 12) : 12,
207 PADDING(PAD_FMT_SHMS), pt, ptlim);
208 continue;
209 case 'M':
210 pt = _conv(t->tm_min, PADDING(PAD_FMT_HMS),
211 pt, ptlim);
212 continue;
213 case 'm':
214 pt = _conv(t->tm_mon + 1,
215 PADDING(PAD_FMT_MONTH),
216 pt, ptlim);
217 continue;
218 case 'n':
219 pt = _add("\n", pt, ptlim);
220 continue;
221 case 'p':
222 pt = _add((t->tm_hour >= (HOURSPERDAY / 2)) ?
223 tptr->pm : tptr->am, pt, ptlim);
224 continue;
225 case 'R':
226 pt = _fmt("%H:%M", t, pt, ptlim);
227 continue;
228 case 'r':
229 pt = _fmt(tptr->ampm_fmt, t, pt, ptlim);
230 continue;
231 case 'S':
232 pt = _conv(t->tm_sec, PADDING(PAD_FMT_HMS),
233 pt, ptlim);
234 continue;
235
236 case 's':
237 {
238 struct tm tm;
239 char *buf;
240
241 tm = *t;
242 (void) asprintf(&buf, "%ld", mktime(&tm));
243 pt = _add(buf, pt, ptlim);
244 continue;
245 }
246
247 case 'T':
248 pt = _fmt("%H:%M:%S", t, pt, ptlim);
249 continue;
250 case 't':
251 pt = _add("\t", pt, ptlim);
252 continue;
253 case 'U':
254 pt = _conv((t->tm_yday + DAYSPERWEEK -
255 t->tm_wday) / DAYSPERWEEK,
256 PADDING(PAD_FMT_WEEKOFYEAR),
257 pt, ptlim);
258 continue;
259 case 'u':
260 /*
261 * From Arnold Robbins' strftime version 3.0:
262 * "ISO 8601: Weekday as a decimal number
263 * [1 (Monday) - 7]"
264 * (ado, 1993-05-24)
265 */
266 pt = _conv((t->tm_wday == 0) ?
267 DAYSPERWEEK : t->tm_wday,
268 "%d", pt, ptlim);
340 w = 53;
341 #endif /* defined XPG4_1994_04_09 */
342 if (*format == 'V')
343 pt = _conv(w,
344 PADDING(PAD_FMT_WEEKOFYEAR),
345 pt, ptlim);
346 else if (*format == 'g') {
347 pt = _yconv(year, base, 0, 1,
348 pt, ptlim);
349 } else
350 pt = _yconv(year, base, 1, 1,
351 pt, ptlim);
352 }
353 continue;
354 case 'v':
355 /*
356 * From Arnold Robbins' strftime version 3.0:
357 * "date as dd-bbb-YYYY"
358 * (ado, 1993-05-24)
359 */
360 pt = _fmt("%e-%b-%Y", t, pt, ptlim);
361 continue;
362 case 'W':
363 pt = _conv((t->tm_yday + DAYSPERWEEK -
364 (t->tm_wday ?
365 (t->tm_wday - 1) :
366 (DAYSPERWEEK - 1))) / DAYSPERWEEK,
367 PADDING(PAD_FMT_WEEKOFYEAR),
368 pt, ptlim);
369 continue;
370 case 'w':
371 pt = _conv(t->tm_wday, "%d", pt, ptlim);
372 continue;
373 case 'X':
374 pt = _fmt(tptr->X_fmt, t, pt, ptlim);
375 continue;
376 case 'x':
377 pt = _fmt(tptr->x_fmt, t, pt, ptlim);
378 continue;
379 case 'y':
380 pt = _yconv(t->tm_year, TM_YEAR_BASE, 0, 1,
381 pt, ptlim);
382 continue;
383 case 'Y':
384 pt = _yconv(t->tm_year, TM_YEAR_BASE, 1, 1,
385 pt, ptlim);
386 continue;
387 case 'Z':
388 if (t->tm_isdst >= 0)
389 pt = _add(tzname[t->tm_isdst != 0],
390 pt, ptlim);
391 /*
392 * C99 says that %Z must be replaced by the
393 * empty string if the time zone is not
394 * determinable.
395 */
396 continue;
397 case 'z':
421 * appropriate variables are not available.
422 */
423 if (t->tm_isdst == 0)
424 diff = -timezone;
425 else
426 diff = -altzone;
427 if (diff < 0) {
428 sign = "-";
429 diff = -diff;
430 } else
431 sign = "+";
432 pt = _add(sign, pt, ptlim);
433 diff /= SECSPERMIN;
434 diff = (diff / MINSPERHOUR) * 100 +
435 (diff % MINSPERHOUR);
436 pt = _conv(diff, PADDING(PAD_FMT_YEAR),
437 pt, ptlim);
438 }
439 continue;
440 case '+':
441 pt = _fmt(tptr->date_fmt, t, pt, ptlim);
442 continue;
443 case '-':
444 if (PadIndex != PAD_DEFAULT)
445 break;
446 PadIndex = PAD_LESS;
447 goto label;
448 case '_':
449 if (PadIndex != PAD_DEFAULT)
450 break;
451 PadIndex = PAD_SPACE;
452 goto label;
453 case '0':
454 if (PadIndex != PAD_DEFAULT)
455 break;
456 PadIndex = PAD_ZERO;
457 goto label;
458 case '%':
459 /*
460 * X311J/88-090 (4.12.3.5): if conversion char is
461 * undefined, behavior is undefined. Print out the
|
1 /*
2 * Copyright 2013 Garrett D'Amore <garrett@damore.org>
3 * Copyright 2010 Nexenta Systems, Inc. All rights reserved.
4 * Copyright (c) 1989 The Regents of the University of California.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms are permitted
8 * provided that the above copyright notice and this paragraph are
9 * duplicated in all such forms and that any documentation,
10 * advertising materials, and other materials related to such
11 * distribution and use acknowledge that the software was developed
12 * by the University of California, Berkeley. The name of the
13 * University may not be used to endorse or promote products derived
14 * from this software without specific prior written permission.
15 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
18 */
19
20 #include "lint.h"
21 #include "tzfile.h"
22 #include <fcntl.h>
23 #include <sys/stat.h>
24 #include <string.h>
25 #include <stdio.h>
26 #include <locale.h>
27 #include "timelocal.h"
28 #include "localeimpl.h"
29
30 static char *_add(const char *, char *, const char *);
31 static char *_conv(int, const char *, char *, const char *);
32 static char *_fmt(locale_t, const char *, const struct tm *, char *,
33 const char * const);
34 static char *_yconv(int, int, int, int, char *, const char *);
35
36 extern char *tzname[];
37
38 #define IN_NONE 0
39 #define IN_SOME 1
40 #define IN_THIS 2
41 #define IN_ALL 3
42
43 #define PAD_DEFAULT 0
44 #define PAD_LESS 1
45 #define PAD_SPACE 2
46 #define PAD_ZERO 3
47
48 static const char *fmt_padding[][4] = {
49 /* DEFAULT, LESS, SPACE, ZERO */
50 #define PAD_FMT_MONTHDAY 0
51 #define PAD_FMT_HMS 0
52 #define PAD_FMT_CENTURY 0
53 #define PAD_FMT_SHORTYEAR 0
54 #define PAD_FMT_MONTH 0
55 #define PAD_FMT_WEEKOFYEAR 0
56 #define PAD_FMT_DAYOFMONTH 0
57 { "%02d", "%d", "%2d", "%02d" },
58 #define PAD_FMT_SDAYOFMONTH 1
59 #define PAD_FMT_SHMS 1
60 { "%2d", "%d", "%2d", "%02d" },
61 #define PAD_FMT_DAYOFYEAR 2
62 { "%03d", "%d", "%3d", "%03d" },
63 #define PAD_FMT_YEAR 3
64 { "%04d", "%d", "%4d", "%04d" }
65 };
66
67
68 size_t
69 strftime_l(char *_RESTRICT_KYWD s, size_t maxsize,
70 const char *_RESTRICT_KYWD format, const struct tm *_RESTRICT_KYWD t,
71 locale_t loc)
72 {
73 char *p;
74
75 tzset();
76 p = _fmt(loc, ((format == NULL) ? "%c" : format), t, s, s + maxsize);
77 if (p == s + maxsize)
78 return (0);
79 *p = '\0';
80 return (p - s);
81 }
82
83 size_t
84 strftime(char *_RESTRICT_KYWD s, size_t maxsize,
85 const char *_RESTRICT_KYWD format, const struct tm *_RESTRICT_KYWD t)
86 {
87 return (strftime_l(s, maxsize, format, t, uselocale(NULL)));
88 }
89
90 static char *
91 _fmt(locale_t loc, const char *format, const struct tm *t, char *pt,
92 const char * const ptlim)
93 {
94 int Ealternative, Oalternative, PadIndex;
95 const struct lc_time *tptr = loc->time;
96
97 #define PADDING(x) fmt_padding[x][PadIndex]
98
99 for (; *format; ++format) {
100 if (*format == '%') {
101 Ealternative = 0;
102 Oalternative = 0;
103 PadIndex = PAD_DEFAULT;
104 label:
105 switch (*++format) {
106 case '\0':
107 --format;
108 break;
109 case 'A':
110 pt = _add((t->tm_wday < 0 ||
111 t->tm_wday >= DAYSPERWEEK) ?
112 "?" : tptr->weekday[t->tm_wday],
113 pt, ptlim);
114 continue;
115 case 'a':
126 continue;
127 case 'b':
128 case 'h':
129 pt = _add((t->tm_mon < 0 ||
130 t->tm_mon >= MONSPERYEAR) ?
131 "?" : tptr->mon[t->tm_mon],
132 pt, ptlim);
133 continue;
134 case 'C':
135 /*
136 * %C used to do a...
137 * _fmt("%a %b %e %X %Y", t);
138 * ...whereas now POSIX 1003.2 calls for
139 * something completely different.
140 * (ado, 1993-05-24)
141 */
142 pt = _yconv(t->tm_year, TM_YEAR_BASE, 1, 0,
143 pt, ptlim);
144 continue;
145 case 'c':
146 pt = _fmt(loc, tptr->c_fmt, t, pt, ptlim);
147 continue;
148 case 'D':
149 pt = _fmt(loc, "%m/%d/%y", t, pt, ptlim);
150 continue;
151 case 'd':
152 pt = _conv(t->tm_mday,
153 PADDING(PAD_FMT_DAYOFMONTH), pt, ptlim);
154 continue;
155 case 'E':
156 if (Ealternative || Oalternative)
157 break;
158 Ealternative++;
159 goto label;
160 case 'O':
161 /*
162 * C99 locale modifiers.
163 * The sequences
164 * %Ec %EC %Ex %EX %Ey %EY
165 * %Od %oe %OH %OI %Om %OM
166 * %OS %Ou %OU %OV %Ow %OW %Oy
167 * are supposed to provide alternate
168 * representations.
169 */
170 if (Ealternative || Oalternative)
171 break;
172 Oalternative++;
173 goto label;
174 case 'e':
175 pt = _conv(t->tm_mday,
176 PADDING(PAD_FMT_SDAYOFMONTH), pt, ptlim);
177 continue;
178 case 'F':
179 pt = _fmt(loc, "%Y-%m-%d", t, pt, ptlim);
180 continue;
181 case 'H':
182 pt = _conv(t->tm_hour, PADDING(PAD_FMT_HMS),
183 pt, ptlim);
184 continue;
185 case 'I':
186 pt = _conv((t->tm_hour % 12) ?
187 (t->tm_hour % 12) : 12,
188 PADDING(PAD_FMT_HMS), pt, ptlim);
189 continue;
190 case 'j':
191 pt = _conv(t->tm_yday + 1,
192 PADDING(PAD_FMT_DAYOFYEAR), pt, ptlim);
193 continue;
194 case 'k':
195 /*
196 * This used to be...
197 * _conv(t->tm_hour % 12 ?
198 * t->tm_hour % 12 : 12, 2, ' ');
199 * ...and has been changed to the below to
219 (t->tm_hour % 12) : 12,
220 PADDING(PAD_FMT_SHMS), pt, ptlim);
221 continue;
222 case 'M':
223 pt = _conv(t->tm_min, PADDING(PAD_FMT_HMS),
224 pt, ptlim);
225 continue;
226 case 'm':
227 pt = _conv(t->tm_mon + 1,
228 PADDING(PAD_FMT_MONTH),
229 pt, ptlim);
230 continue;
231 case 'n':
232 pt = _add("\n", pt, ptlim);
233 continue;
234 case 'p':
235 pt = _add((t->tm_hour >= (HOURSPERDAY / 2)) ?
236 tptr->pm : tptr->am, pt, ptlim);
237 continue;
238 case 'R':
239 pt = _fmt(loc, "%H:%M", t, pt, ptlim);
240 continue;
241 case 'r':
242 pt = _fmt(loc, tptr->ampm_fmt, t, pt, ptlim);
243 continue;
244 case 'S':
245 pt = _conv(t->tm_sec, PADDING(PAD_FMT_HMS),
246 pt, ptlim);
247 continue;
248
249 case 's':
250 {
251 struct tm tm;
252 char *buf;
253
254 tm = *t;
255 (void) asprintf(&buf, "%ld", mktime(&tm));
256 pt = _add(buf, pt, ptlim);
257 continue;
258 }
259
260 case 'T':
261 pt = _fmt(loc, "%H:%M:%S", t, pt, ptlim);
262 continue;
263 case 't':
264 pt = _add("\t", pt, ptlim);
265 continue;
266 case 'U':
267 pt = _conv((t->tm_yday + DAYSPERWEEK -
268 t->tm_wday) / DAYSPERWEEK,
269 PADDING(PAD_FMT_WEEKOFYEAR),
270 pt, ptlim);
271 continue;
272 case 'u':
273 /*
274 * From Arnold Robbins' strftime version 3.0:
275 * "ISO 8601: Weekday as a decimal number
276 * [1 (Monday) - 7]"
277 * (ado, 1993-05-24)
278 */
279 pt = _conv((t->tm_wday == 0) ?
280 DAYSPERWEEK : t->tm_wday,
281 "%d", pt, ptlim);
353 w = 53;
354 #endif /* defined XPG4_1994_04_09 */
355 if (*format == 'V')
356 pt = _conv(w,
357 PADDING(PAD_FMT_WEEKOFYEAR),
358 pt, ptlim);
359 else if (*format == 'g') {
360 pt = _yconv(year, base, 0, 1,
361 pt, ptlim);
362 } else
363 pt = _yconv(year, base, 1, 1,
364 pt, ptlim);
365 }
366 continue;
367 case 'v':
368 /*
369 * From Arnold Robbins' strftime version 3.0:
370 * "date as dd-bbb-YYYY"
371 * (ado, 1993-05-24)
372 */
373 pt = _fmt(loc, "%e-%b-%Y", t, pt, ptlim);
374 continue;
375 case 'W':
376 pt = _conv((t->tm_yday + DAYSPERWEEK -
377 (t->tm_wday ?
378 (t->tm_wday - 1) :
379 (DAYSPERWEEK - 1))) / DAYSPERWEEK,
380 PADDING(PAD_FMT_WEEKOFYEAR),
381 pt, ptlim);
382 continue;
383 case 'w':
384 pt = _conv(t->tm_wday, "%d", pt, ptlim);
385 continue;
386 case 'X':
387 pt = _fmt(loc, tptr->X_fmt, t, pt, ptlim);
388 continue;
389 case 'x':
390 pt = _fmt(loc, tptr->x_fmt, t, pt, ptlim);
391 continue;
392 case 'y':
393 pt = _yconv(t->tm_year, TM_YEAR_BASE, 0, 1,
394 pt, ptlim);
395 continue;
396 case 'Y':
397 pt = _yconv(t->tm_year, TM_YEAR_BASE, 1, 1,
398 pt, ptlim);
399 continue;
400 case 'Z':
401 if (t->tm_isdst >= 0)
402 pt = _add(tzname[t->tm_isdst != 0],
403 pt, ptlim);
404 /*
405 * C99 says that %Z must be replaced by the
406 * empty string if the time zone is not
407 * determinable.
408 */
409 continue;
410 case 'z':
434 * appropriate variables are not available.
435 */
436 if (t->tm_isdst == 0)
437 diff = -timezone;
438 else
439 diff = -altzone;
440 if (diff < 0) {
441 sign = "-";
442 diff = -diff;
443 } else
444 sign = "+";
445 pt = _add(sign, pt, ptlim);
446 diff /= SECSPERMIN;
447 diff = (diff / MINSPERHOUR) * 100 +
448 (diff % MINSPERHOUR);
449 pt = _conv(diff, PADDING(PAD_FMT_YEAR),
450 pt, ptlim);
451 }
452 continue;
453 case '+':
454 pt = _fmt(loc, tptr->date_fmt, t, pt, ptlim);
455 continue;
456 case '-':
457 if (PadIndex != PAD_DEFAULT)
458 break;
459 PadIndex = PAD_LESS;
460 goto label;
461 case '_':
462 if (PadIndex != PAD_DEFAULT)
463 break;
464 PadIndex = PAD_SPACE;
465 goto label;
466 case '0':
467 if (PadIndex != PAD_DEFAULT)
468 break;
469 PadIndex = PAD_ZERO;
470 goto label;
471 case '%':
472 /*
473 * X311J/88-090 (4.12.3.5): if conversion char is
474 * undefined, behavior is undefined. Print out the
|