d7ce700605
Add Posix functions for porting compatibility. Fix compliance issues with ISO/IEC 9899:199409 New Functions: setenv(), fparseln(), GetFileNameFromPath(), rename(), realpath(), setprogname(), getprogname(), strlcat(), strlcpy(), strsep(), setitimer(), getitimer(), timegm(), getopt(), basename(), mkstemp(), ffs(), vsnprintf(), snprintf(), getpass(), usleep(), select(), writev(), strcasecmp(), getcwd(), chdir(), tcgetpgrp(), getpgrp(), gettimeofday(), bcopy(), git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12061 6f19259b-4bc3-4df7-8a09-765794883524
599 lines
18 KiB
C
599 lines
18 KiB
C
/** @file
|
|
Implementation of the strftime function for <time.h>.
|
|
|
|
Based on the UCB version with the ID appearing below.
|
|
This is ANSIish only when "multibyte character == plain character".
|
|
|
|
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
|
|
This program and the accompanying materials are licensed and made available under
|
|
the terms and conditions of the BSD License that accompanies this distribution.
|
|
The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php.
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
Copyright (c) 1989, 1993
|
|
The Regents of the University of California. All rights reserved.
|
|
|
|
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.
|
|
3. All advertising materials mentioning features or use of this software
|
|
must display the following acknowledgement:
|
|
This product includes software developed by the University of
|
|
California, Berkeley and its contributors.
|
|
4. Neither the name of the University nor the names of its contributors
|
|
may be used to endorse or promote products derived from this software
|
|
without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
|
|
|
NetBSD: strftime.c,v 1.17.4.1 2007/08/21 20:08:21 liamjfoy Exp
|
|
**/
|
|
#include <LibConfig.h>
|
|
#include <sys/EfiCdefs.h>
|
|
|
|
#include "namespace.h"
|
|
#include <time.h>
|
|
#include "tzfile.h"
|
|
#include "TimeVals.h"
|
|
#include "fcntl.h"
|
|
#include "locale.h"
|
|
|
|
#include "sys/localedef.h"
|
|
#include <MainData.h>
|
|
|
|
/*
|
|
** We don't use these extensions in strftime operation even when
|
|
** supported by the local tzcode configuration. A strictly
|
|
** conforming C application may leave them in undefined state.
|
|
*/
|
|
|
|
#ifdef _LIBC
|
|
#undef TM_ZONE
|
|
#undef TM_GMTOFF
|
|
#endif
|
|
|
|
#define Locale _CurrentTimeLocale
|
|
|
|
static char * _add(const char *, char *, const char * const);
|
|
static char * _conv(const int, const char * const, char * const, const char * const);
|
|
static char * _fmt(const char *, const struct tm * const, char *, const char * const, int *);
|
|
|
|
#define NO_RUN_TIME_WARNINGS_ABOUT_YEAR_2000_PROBLEMS_THANK_YOU
|
|
|
|
#ifndef YEAR_2000_NAME
|
|
#define YEAR_2000_NAME "CHECK_STRFTIME_FORMATS_FOR_TWO_DIGIT_YEARS"
|
|
#endif /* !defined YEAR_2000_NAME */
|
|
|
|
|
|
#define IN_NONE 0
|
|
#define IN_SOME 1
|
|
#define IN_THIS 2
|
|
#define IN_ALL 3
|
|
|
|
size_t
|
|
strftime(
|
|
char * __restrict s,
|
|
size_t maxsize,
|
|
const char * __restrict format,
|
|
const struct tm * __restrict timeptr
|
|
)
|
|
{
|
|
char * p;
|
|
int warn;
|
|
|
|
tzset();
|
|
warn = IN_NONE;
|
|
p = _fmt(((format == NULL) ? "%c" : format), timeptr, s, s + maxsize, &warn);
|
|
|
|
#ifndef NO_RUN_TIME_WARNINGS_ABOUT_YEAR_2000_PROBLEMS_THANK_YOU
|
|
if (warn != IN_NONE && getenv(YEAR_2000_NAME) != NULL) {
|
|
(void) fprintf(stderr, "\n");
|
|
if (format == NULL)
|
|
(void) fprintf(stderr, "NULL strftime format ");
|
|
else (void) fprintf(stderr, "strftime format \"%s\" ",
|
|
format);
|
|
(void) fprintf(stderr, "yields only two digits of years in ");
|
|
if (warn == IN_SOME)
|
|
(void) fprintf(stderr, "some locales");
|
|
else if (warn == IN_THIS)
|
|
(void) fprintf(stderr, "the current locale");
|
|
else (void) fprintf(stderr, "all locales");
|
|
(void) fprintf(stderr, "\n");
|
|
}
|
|
#endif /* !defined NO_RUN_TIME_WARNINGS_ABOUT_YEAR_2000_PROBLEMS_THANK_YOU */
|
|
|
|
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 * warnp
|
|
)
|
|
{
|
|
for ( ; *format; ++format) {
|
|
if (*format == '%') {
|
|
label:
|
|
switch (*++format) {
|
|
case '\0':
|
|
--format;
|
|
break;
|
|
case 'A':
|
|
pt = _add((t->tm_wday < 0 ||
|
|
t->tm_wday >= DAYSPERWEEK) ?
|
|
"?" : Locale->day[t->tm_wday],
|
|
pt, ptlim);
|
|
continue;
|
|
case 'a':
|
|
pt = _add((t->tm_wday < 0 ||
|
|
t->tm_wday >= DAYSPERWEEK) ?
|
|
"?" : Locale->abday[t->tm_wday],
|
|
pt, ptlim);
|
|
continue;
|
|
case 'B':
|
|
pt = _add((t->tm_mon < 0 ||
|
|
t->tm_mon >= MONSPERYEAR) ?
|
|
"?" : Locale->mon[t->tm_mon],
|
|
pt, ptlim);
|
|
continue;
|
|
case 'b':
|
|
case 'h':
|
|
pt = _add((t->tm_mon < 0 ||
|
|
t->tm_mon >= MONSPERYEAR) ?
|
|
"?" : Locale->abmon[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, 1993-05-24)
|
|
*/
|
|
pt = _conv((t->tm_year + TM_YEAR_BASE) / 100,
|
|
"%02d", pt, ptlim);
|
|
continue;
|
|
case 'c':
|
|
{
|
|
int warn2 = IN_SOME;
|
|
|
|
pt = _fmt(Locale->d_t_fmt, t, pt, ptlim, &warn2);
|
|
if (warn2 == IN_ALL)
|
|
warn2 = IN_THIS;
|
|
if (warn2 > *warnp)
|
|
*warnp = warn2;
|
|
}
|
|
continue;
|
|
case 'D':
|
|
pt = _fmt("%m/%d/%y", t, pt, ptlim, warnp);
|
|
continue;
|
|
case 'd':
|
|
pt = _conv(t->tm_mday, "%02d", pt, ptlim);
|
|
continue;
|
|
case 'E':
|
|
case 'O':
|
|
/*
|
|
** C99 locale modifiers.
|
|
** 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.
|
|
*/
|
|
goto label;
|
|
case 'e':
|
|
pt = _conv(t->tm_mday, "%2d", pt, ptlim);
|
|
continue;
|
|
case 'F':
|
|
pt = _fmt("%Y-%m-%d", t, pt, ptlim, warnp);
|
|
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, 1993-05-24)
|
|
*/
|
|
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, 1993-05-24)
|
|
*/
|
|
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 >= (HOURSPERDAY / 2)) ?
|
|
Locale->am_pm[1] :
|
|
Locale->am_pm[0],
|
|
pt, ptlim);
|
|
continue;
|
|
case 'R':
|
|
pt = _fmt("%H:%M", t, pt, ptlim, warnp);
|
|
continue;
|
|
case 'r':
|
|
pt = _fmt(Locale->t_fmt_ampm, t, pt, ptlim,
|
|
warnp);
|
|
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);
|
|
/* CONSTCOND */
|
|
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, warnp);
|
|
continue;
|
|
case 't':
|
|
pt = _add("\t", pt, ptlim);
|
|
continue;
|
|
case 'U':
|
|
pt = _conv((t->tm_yday + DAYSPERWEEK -
|
|
t->tm_wday) / DAYSPERWEEK,
|
|
"%02d", pt, ptlim);
|
|
continue;
|
|
case 'u':
|
|
/*
|
|
** From Arnold Robbins' strftime version 3.0:
|
|
** "ISO 8601: Weekday as a decimal number
|
|
** [1 (Monday) - 7]"
|
|
** (ado, 1993-05-24)
|
|
*/
|
|
pt = _conv((t->tm_wday == 0) ?
|
|
DAYSPERWEEK : 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') {
|
|
*warnp = IN_ALL;
|
|
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, 1993-05-24)
|
|
*/
|
|
pt = _fmt("%e-%b-%Y", t, pt, ptlim, warnp);
|
|
continue;
|
|
case 'W':
|
|
pt = _conv((t->tm_yday + DAYSPERWEEK -
|
|
(t->tm_wday ?
|
|
(t->tm_wday - 1) :
|
|
(DAYSPERWEEK - 1))) / DAYSPERWEEK,
|
|
"%02d", pt, ptlim);
|
|
continue;
|
|
case 'w':
|
|
pt = _conv(t->tm_wday, "%d", pt, ptlim);
|
|
continue;
|
|
case 'X':
|
|
pt = _fmt(Locale->t_fmt, t, pt, ptlim, warnp);
|
|
continue;
|
|
case 'x':
|
|
{
|
|
int warn2 = IN_SOME;
|
|
|
|
pt = _fmt(Locale->d_fmt, t, pt, ptlim, &warn2);
|
|
if (warn2 == IN_ALL)
|
|
warn2 = IN_THIS;
|
|
if (warn2 > *warnp)
|
|
*warnp = warn2;
|
|
}
|
|
continue;
|
|
case 'y':
|
|
*warnp = IN_ALL;
|
|
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':
|
|
#ifdef TM_ZONE
|
|
if (t->TM_ZONE != NULL)
|
|
pt = _add(t->TM_ZONE, pt, ptlim);
|
|
else
|
|
#endif /* defined TM_ZONE */
|
|
if (t->tm_isdst >= 0)
|
|
pt = _add(tzname[t->tm_isdst != 0],
|
|
pt, ptlim);
|
|
/*
|
|
** C99 says that %Z must be replaced by the
|
|
** empty string if the time zone is not
|
|
** determinable.
|
|
*/
|
|
continue;
|
|
case 'z':
|
|
{
|
|
int diff;
|
|
char const * sign;
|
|
|
|
if (t->tm_isdst < 0)
|
|
continue;
|
|
#ifdef TM_GMTOFF
|
|
diff = (int)t->TM_GMTOFF;
|
|
#else /* !defined TM_GMTOFF */
|
|
/*
|
|
** C99 says that the UTC offset must
|
|
** be computed by looking only at
|
|
** tm_isdst. This requirement is
|
|
** incorrect, since it means the code
|
|
** must rely on magic (in this case
|
|
** altzone and timezone), and the
|
|
** magic might not have the correct
|
|
** offset. Doing things correctly is
|
|
** tricky and requires disobeying C99;
|
|
** see GNU C strftime for details.
|
|
** For now, punt and conform to the
|
|
** standard, even though it's incorrect.
|
|
**
|
|
** C99 says that %z must be replaced by the
|
|
** empty string if the time zone is not
|
|
** determinable, so output nothing if the
|
|
** appropriate variables are not available.
|
|
*/
|
|
#ifndef STD_INSPIRED
|
|
if (t->tm_isdst == 0)
|
|
#ifdef USG_COMPAT
|
|
diff = -timezone;
|
|
#else /* !defined USG_COMPAT */
|
|
continue;
|
|
#endif /* !defined USG_COMPAT */
|
|
else
|
|
#ifdef ALTZONE
|
|
diff = -altzone;
|
|
#else /* !defined ALTZONE */
|
|
continue;
|
|
#endif /* !defined ALTZONE */
|
|
#else /* defined STD_INSPIRED */
|
|
{
|
|
struct tm tmp;
|
|
time_t lct, gct;
|
|
|
|
/*
|
|
** Get calendar time from t
|
|
** being treated as local.
|
|
*/
|
|
tmp = *t; /* mktime discards const */
|
|
lct = mktime(&tmp);
|
|
|
|
if (lct == (time_t)-1)
|
|
continue;
|
|
|
|
/*
|
|
** Get calendar time from t
|
|
** being treated as GMT.
|
|
**/
|
|
tmp = *t; /* mktime discards const */
|
|
gct = timegm(&tmp);
|
|
|
|
if (gct == (time_t)-1)
|
|
continue;
|
|
|
|
/* LINTED difference will fit int */
|
|
diff = (intmax_t)gct - (intmax_t)lct;
|
|
}
|
|
#endif /* defined STD_INSPIRED */
|
|
#endif /* !defined TM_GMTOFF */
|
|
if (diff < 0) {
|
|
sign = "-";
|
|
diff = -diff;
|
|
} else sign = "+";
|
|
pt = _add(sign, pt, ptlim);
|
|
diff /= 60;
|
|
pt = _conv((diff/60)*100 + diff%60,
|
|
"%04d", pt, ptlim);
|
|
}
|
|
continue;
|
|
#if 0
|
|
case '+':
|
|
pt = _fmt(Locale->date_fmt, t, pt, ptlim,
|
|
warnp);
|
|
continue;
|
|
#endif
|
|
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(
|
|
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(
|
|
const char * str,
|
|
char * pt,
|
|
const char * const ptlim
|
|
)
|
|
{
|
|
while (pt < ptlim && (*pt = *str++) != '\0')
|
|
++pt;
|
|
return pt;
|
|
}
|