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*** 0 ****
--- 1,458 ----
+ /*
+ * Copyright (c) 1989 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * by the University of California, Berkeley. The name of the
+ * University may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+ #if 0
+ static const char elsieid[] = "@(#)strftime.c 7.38";
+ static const char sccsid[] = "@(#)strftime.c 5.4 (Berkeley) 3/14/89";
+ __FBSDID("$FreeBSD: src/lib/libc/stdtime/strftime.c,v 1.35 2002/03/22 21:53:13 obrien Exp $");
+ #endif
+
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <string.h>
+ #include <fcntl.h>
+ #include <sys/stat.h>
+
+ #include "tai.h"
+ #include "tai_p.h"
+
+ #define INT_STRLEN_MAXIMUM(type) \
+ ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + 1 + TYPE_SIGNED(type))
+ #define TYPE_BIT(type) (sizeof(type)*8)
+ #define TYPE_SIGNED(type) (((type) -1) < 0)
+ #define isleap(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0))
+ #define DAYSPERWEEK 7
+ #define DAYSPERNYEAR 365
+ #define DAYSPERLYEAR 366
+
+ static char * _add(const char *, char *, const char *);
+ static char * _conv(int, const char *, char *, const char *);
+ static char * _fmt(const char *, const struct tm *, char *, const char *);
+
+ #if 0 /* FIXME */
+ extern char * tzname[];
+ #endif
+
+ size_t
+ tai_format_int(
+ char *const s,
+ const size_t maxsize,
+ const char *const format,
+ const struct tm *const t)
+ {
+ char *p;
+
+ #if 0 /* FIXME */
+ tzset();
+ #endif
+ p = _fmt(((format == NULL) ? "%c" : format), t, s, s + maxsize);
+ if (p == s + maxsize)
+ return 0;
+ *p = '\0';
+ return p - s;
+ }
+
+ static char *
+ _fmt(
+ const char *format,
+ const struct tm *const t,
+ char *pt,
+ const char *const ptlim)
+ {
+ int Ealternative, Oalternative;
+ const tai_locale_t *tptr = &tai_locale;
+
+ for ( ; *format; ++format) {
+ if (*format == '%') {
+ Ealternative = 0;
+ Oalternative = 0;
+ label:
+ switch (*++format) {
+ case '\0':
+ --format;
+ break;
+ case 'A':
+ pt = _add((t->tm_wday < 0 || t->tm_wday > 6) ?
+ "?" : tptr->weekday[t->tm_wday],
+ pt, ptlim);
+ continue;
+ case 'a':
+ pt = _add((t->tm_wday < 0 || t->tm_wday > 6) ?
+ "?" : tptr->wday[t->tm_wday],
+ pt, ptlim);
+ continue;
+ case 'B':
+ pt = _add((t->tm_mon < 0 || t->tm_mon > 11) ?
+ "?" : (Oalternative ? tptr->alt_month :
+ tptr->month)[t->tm_mon],
+ pt, ptlim);
+ continue;
+ case 'b':
+ case 'h':
+ pt = _add((t->tm_mon < 0 || t->tm_mon > 11) ?
+ "?" : tptr->mon[t->tm_mon],
+ pt, ptlim);
+ continue;
+ case 'C':
+ /*
+ ** %C used to do a...
+ ** _fmt("%a %b %e %X %Y", t);
+ ** ...whereas now POSIX 1003.2 calls for
+ ** something completely different.
+ ** (ado, 5/24/93)
+ */
+ pt = _conv((t->tm_year + TM_YEAR_BASE) / 100,
+ "%02d", pt, ptlim);
+ continue;
+ case 'c':
+ pt = _fmt(tptr->c_fmt, t, pt, ptlim);
+ continue;
+ case 'D':
+ pt = _fmt("%m/%d/%y", t, pt, ptlim);
+ continue;
+ case 'd':
+ pt = _conv(t->tm_mday, "%02d", pt, ptlim);
+ continue;
+ case 'E':
+ if (Ealternative || Oalternative)
+ break;
+ Ealternative++;
+ goto label;
+ case 'O':
+ /*
+ ** POSIX locale extensions, a la
+ ** Arnold Robbins' strftime version 3.0.
+ ** The sequences
+ ** %Ec %EC %Ex %EX %Ey %EY
+ ** %Od %oe %OH %OI %Om %OM
+ ** %OS %Ou %OU %OV %Ow %OW %Oy
+ ** are supposed to provide alternate
+ ** representations.
+ ** (ado, 5/24/93)
+ **
+ ** FreeBSD extensions
+ ** %OB %Ef %EF
+ */
+ if (Ealternative || Oalternative)
+ break;
+ Oalternative++;
+ goto label;
+ case 'e':
+ pt = _conv(t->tm_mday, "%2d", pt, ptlim);
+ continue;
+ case 'F':
+ pt = _fmt("%Y-%m-%d", t, pt, ptlim);
+ continue;
+ case 'H':
+ pt = _conv(t->tm_hour, "%02d", pt, ptlim);
+ continue;
+ case 'I':
+ pt = _conv((t->tm_hour % 12) ?
+ (t->tm_hour % 12) : 12,
+ "%02d", pt, ptlim);
+ continue;
+ case 'j':
+ pt = _conv(t->tm_yday + 1, "%03d", pt, ptlim);
+ continue;
+ case 'k':
+ /*
+ ** This used to be...
+ ** _conv(t->tm_hour % 12 ?
+ ** t->tm_hour % 12 : 12, 2, ' ');
+ ** ...and has been changed to the below to
+ ** match SunOS 4.1.1 and Arnold Robbins'
+ ** strftime version 3.0. That is, "%k" and
+ ** "%l" have been swapped.
+ ** (ado, 5/24/93)
+ */
+ pt = _conv(t->tm_hour, "%2d", pt, ptlim);
+ continue;
+ #ifdef KITCHEN_SINK
+ case 'K':
+ /*
+ ** After all this time, still unclaimed!
+ */
+ pt = _add("kitchen sink", pt, ptlim);
+ continue;
+ #endif /* defined KITCHEN_SINK */
+ case 'l':
+ /*
+ ** This used to be...
+ ** _conv(t->tm_hour, 2, ' ');
+ ** ...and has been changed to the below to
+ ** match SunOS 4.1.1 and Arnold Robbin's
+ ** strftime version 3.0. That is, "%k" and
+ ** "%l" have been swapped.
+ ** (ado, 5/24/93)
+ */
+ pt = _conv((t->tm_hour % 12) ?
+ (t->tm_hour % 12) : 12,
+ "%2d", pt, ptlim);
+ continue;
+ case 'M':
+ pt = _conv(t->tm_min, "%02d", pt, ptlim);
+ continue;
+ case 'm':
+ pt = _conv(t->tm_mon + 1, "%02d", pt, ptlim);
+ continue;
+ case 'n':
+ pt = _add("\n", pt, ptlim);
+ continue;
+ case 'p':
+ pt = _add((t->tm_hour >= 12) ?
+ tptr->pm :
+ tptr->am,
+ pt, ptlim);
+ continue;
+ case 'R':
+ pt = _fmt("%H:%M", t, pt, ptlim);
+ continue;
+ case 'r':
+ pt = _fmt(tptr->ampm_fmt, t, pt, ptlim);
+ continue;
+ case 'S':
+ pt = _conv(t->tm_sec, "%02d", pt, ptlim);
+ continue;
+ case 's':
+ {
+ struct tm tm;
+ char buf[INT_STRLEN_MAXIMUM(
+ time_t) + 1];
+ time_t mkt;
+
+ tm = *t;
+ mkt = mktime(&tm);
+ if (TYPE_SIGNED(time_t))
+ (void) sprintf(buf, "%ld",
+ (long) mkt);
+ else (void) sprintf(buf, "%lu",
+ (unsigned long) mkt);
+ pt = _add(buf, pt, ptlim);
+ }
+ continue;
+ case 'T':
+ pt = _fmt("%H:%M:%S", t, pt, ptlim);
+ continue;
+ case 't':
+ pt = _add("\t", pt, ptlim);
+ continue;
+ case 'U':
+ pt = _conv((t->tm_yday + 7 - t->tm_wday) / 7,
+ "%02d", pt, ptlim);
+ continue;
+ case 'u':
+ /*
+ ** From Arnold Robbins' strftime version 3.0:
+ ** "ISO 8601: Weekday as a decimal number
+ ** [1 (Monday) - 7]"
+ ** (ado, 5/24/93)
+ */
+ pt = _conv((t->tm_wday == 0) ? 7 : t->tm_wday,
+ "%d", pt, ptlim);
+ continue;
+ case 'V': /* ISO 8601 week number */
+ case 'G': /* ISO 8601 year (four digits) */
+ case 'g': /* ISO 8601 year (two digits) */
+ /*
+ ** From Arnold Robbins' strftime version 3.0: "the week number of the
+ ** year (the first Monday as the first day of week 1) as a decimal number
+ ** (01-53)."
+ ** (ado, 1993-05-24)
+ **
+ ** From "http://www.ft.uni-erlangen.de/~mskuhn/iso-time.html" by Markus Kuhn:
+ ** "Week 01 of a year is per definition the first week which has the
+ ** Thursday in this year, which is equivalent to the week which contains
+ ** the fourth day of January. In other words, the first week of a new year
+ ** is the week which has the majority of its days in the new year. Week 01
+ ** might also contain days from the previous year and the week before week
+ ** 01 of a year is the last week (52 or 53) of the previous year even if
+ ** it contains days from the new year. A week starts with Monday (day 1)
+ ** and ends with Sunday (day 7). For example, the first week of the year
+ ** 1997 lasts from 1996-12-30 to 1997-01-05..."
+ ** (ado, 1996-01-02)
+ */
+ {
+ int year;
+ int yday;
+ int wday;
+ int w;
+
+ year = t->tm_year + TM_YEAR_BASE;
+ yday = t->tm_yday;
+ wday = t->tm_wday;
+ for ( ; ; ) {
+ int len;
+ int bot;
+ int top;
+
+ len = isleap(year) ?
+ DAYSPERLYEAR :
+ DAYSPERNYEAR;
+ /*
+ ** What yday (-3 ... 3) does
+ ** the ISO year begin on?
+ */
+ bot = ((yday + 11 - wday) %
+ DAYSPERWEEK) - 3;
+ /*
+ ** What yday does the NEXT
+ ** ISO year begin on?
+ */
+ top = bot -
+ (len % DAYSPERWEEK);
+ if (top < -3)
+ top += DAYSPERWEEK;
+ top += len;
+ if (yday >= top) {
+ ++year;
+ w = 1;
+ break;
+ }
+ if (yday >= bot) {
+ w = 1 + ((yday - bot) /
+ DAYSPERWEEK);
+ break;
+ }
+ --year;
+ yday += isleap(year) ?
+ DAYSPERLYEAR :
+ DAYSPERNYEAR;
+ }
+ #ifdef XPG4_1994_04_09
+ if ((w == 52
+ && t->tm_mon == TM_JANUARY)
+ || (w == 1
+ && t->tm_mon == TM_DECEMBER))
+ w = 53;
+ #endif /* defined XPG4_1994_04_09 */
+ if (*format == 'V')
+ pt = _conv(w, "%02d",
+ pt, ptlim);
+ else if (*format == 'g') {
+ pt = _conv(year % 100, "%02d",
+ pt, ptlim);
+ } else pt = _conv(year, "%04d",
+ pt, ptlim);
+ }
+ continue;
+ case 'v':
+ /*
+ ** From Arnold Robbins' strftime version 3.0:
+ ** "date as dd-bbb-YYYY"
+ ** (ado, 5/24/93)
+ */
+ pt = _fmt("%e-%b-%Y", t, pt, ptlim);
+ continue;
+ case 'W':
+ pt = _conv((t->tm_yday + 7 -
+ (t->tm_wday ?
+ (t->tm_wday - 1) : 6)) / 7,
+ "%02d", pt, ptlim);
+ continue;
+ case 'w':
+ pt = _conv(t->tm_wday, "%d", pt, ptlim);
+ continue;
+ case 'X':
+ pt = _fmt(tptr->X_fmt, t, pt, ptlim);
+ continue;
+ case 'x':
+ pt = _fmt(tptr->x_fmt, t, pt, ptlim);
+ continue;
+ case 'y':
+ pt = _conv((t->tm_year + TM_YEAR_BASE) % 100,
+ "%02d", pt, ptlim);
+ continue;
+ case 'Y':
+ pt = _conv(t->tm_year + TM_YEAR_BASE, "%04d",
+ pt, ptlim);
+ continue;
+ case 'Z':
+ #if 0 /* FIXME */
+ if (t->tm_zone != NULL)
+ pt = _add(t->tm_zone, pt, ptlim);
+ else
+ /* FIXME: strftime("%Z") or keep "?" */
+ if (t->tm_isdst == 0 || t->tm_isdst == 1) {
+ pt = _add(tzname[t->tm_isdst],
+ pt, ptlim);
+ } else
+ #endif
+ pt = _add("?", pt, ptlim);
+ continue;
+ case 'z':
+ #if 0 /* FIXME */
+ {
+ long absoff;
+ if (t->tm_gmtoff >= 0) {
+ absoff = t->tm_gmtoff;
+ pt = _add("+", pt, ptlim);
+ } else {
+ absoff = -t->tm_gmtoff;
+ pt = _add("-", pt, ptlim);
+ }
+ pt = _conv(absoff / 3600, "%02d",
+ pt, ptlim);
+ pt = _conv((absoff % 3600) / 60, "%02d",
+ pt, ptlim);
+ };
+ #endif
+ pt = _add("?", pt, ptlim);
+ continue;
+ case '+':
+ pt = _fmt(tptr->date_fmt, t, pt, ptlim);
+ continue;
+ case '%':
+ /*
+ * X311J/88-090 (4.12.3.5): if conversion char is
+ * undefined, behavior is undefined. Print out the
+ * character itself as printf(3) also does.
+ */
+ default:
+ break;
+ }
+ }
+ if (pt == ptlim)
+ break;
+ *pt++ = *format;
+ }
+ return pt;
+ }
+
+ static char *
+ _conv(n, format, pt, ptlim)
+ const int n;
+ const char *const format;
+ char *const pt;
+ const char *const ptlim;
+ {
+ char buf[INT_STRLEN_MAXIMUM(int) + 1];
+
+ (void) sprintf(buf, format, n);
+ return _add(buf, pt, ptlim);
+ }
+
+ static char *
+ _add(str, pt, ptlim)
+ const char *str;
+ char *pt;
+ const char *const ptlim;
+ {
+ while (pt < ptlim && (*pt = *str++) != '\0')
+ ++pt;
+ return pt;
+ }
+
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