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. added zoneinfo to build, with fixes for minix

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. now using zoneinfo date command, instead of commands/simple/date.c
This commit is contained in:
Ben Gras 2007-03-30 15:32:55 +00:00
parent a2d3b518d8
commit 0be7f44224
21 changed files with 86 additions and 1215 deletions
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2
commands/Makefile
View file

@ -4,7 +4,7 @@ MAKE = exec make -$(MAKEFLAGS)
BZIP2=bzip2-1.0.3
FLEX=flex-2.5.4
SMALLPROGRAMS=`arch` aal advent ash autil awk bc byacc cawf cron de dhcpd dis88 elle elvis ftp101 ftpd200 ibm indent m4 make mdb mined patch pax profile ps reboot rlogind scripts sh simple syslogd talk talkd telnet telnetd urlget yap
SMALLPROGRAMS=`arch` aal advent ash autil awk bc byacc cawf cron de dhcpd dis88 elle elvis ftp101 ftpd200 ibm indent m4 make mdb mined patch pax profile ps reboot rlogind scripts sh simple syslogd talk talkd telnet telnetd urlget yap zoneinfo
usage:
@echo "Usage: make all # Compile all commands" >&2

13
commands/simple/Makefile
View file

@ -67,7 +67,6 @@ ALL = \
cp \
crc \
cut \
date \
dd \
decomp16 \
dev2name \
@ -325,10 +324,6 @@ cut: cut.c
$(CCLD) -o $@ $?
@install -S 4kw $@
date: date.c
$(CCLD) -o $@ $?
@install -S 4kw $@
dd: dd.c
$(CCLD) -o $@ $?
@install -S 20kw $@
@ -950,7 +945,6 @@ install: \
/bin/rm \
/usr/bin/crc \
/usr/bin/cut \
/usr/bin/date \
/usr/bin/dd \
/usr/bin/decomp16 \
/bin/dev2name \
@ -1114,7 +1108,6 @@ install: \
/usr/bin/yes \
/usr/bin/udpstat \
/bin/cat \
/bin/date \
/bin/fsck \
/bin/intr \
/bin/mount \
@ -1227,9 +1220,6 @@ install: \
/usr/bin/cut: cut
install -cs -o bin $? $@
/usr/bin/date: date
install -cs -o bin $? $@
/usr/bin/dd: dd
install -cs -o bin $? $@
@ -1713,9 +1703,6 @@ install: \
/bin/cat: /usr/bin/cat
install -lcs $? $@
/bin/date: /usr/bin/date
install -lcs $? $@
/bin/fsck: /usr/bin/fsck
install -lcs $? $@

66
commands/zoneinfo/Makefile
View file

@ -9,7 +9,7 @@
# make zonenames
# to get a list of the values you can use for LOCALTIME.
LOCALTIME= Factory
LOCALTIME= GMT
# If you want something other than Eastern United States time as a template
# for handling POSIX-style time zone environment variables,
@ -34,30 +34,25 @@ POSIXRULES= America/New_York
# Everything gets put in subdirectories of. . .
TOPDIR= /usr/local
TOPDIR= /usr
# "Compiled" time zone information is placed in the "TZDIR" directory
# (and subdirectories).
# Use an absolute path name for TZDIR unless you're just testing the software.
TZDIR= $(TOPDIR)/etc/zoneinfo
TZDIR= $(TOPDIR)/share/zoneinfo
# The "tzselect", "zic", and "zdump" commands get installed in. . .
ETCDIR= $(TOPDIR)/etc
ETCDIR= $(TOPDIR)/bin
# If you "make INSTALL", the "date" command gets installed in. . .
BINDIR= $(TOPDIR)/bin
# Manual pages go in subdirectories of. . .
MANDIR= $(TOPDIR)/man
# Library functions are put in an archive in LIBDIR.
LIBDIR= $(TOPDIR)/lib
TZLIB= $(LIBDIR)/libtz.a
# If you always want time values interpreted as "seconds since the epoch
# (not counting leap seconds)", use
@ -210,7 +205,7 @@ GCC_DEBUG_FLAGS = -Dlint -g -O -fno-common \
# before the first Monday in January when a "%V" format is used and January 1
# falls on a Friday, Saturday, or Sunday.
CFLAGS=
CFLAGS=-DHAVE_ADJTIME=0 -D_POSIX_SOURCE=1 -D_MINIX=1
# If you want zic's -s option used when installing, uncomment the next line
# ZFLAGS= -s
@ -255,9 +250,7 @@ HEADERS= tzfile.h private.h
NONLIBSRCS= zic.c zdump.c scheck.c ialloc.c
NEWUCBSRCS= date.c logwtmp.c strftime.c
SOURCES= $(HEADERS) $(LIBSRCS) $(NONLIBSRCS) $(NEWUCBSRCS) tzselect.ksh
MANS= newctime.3 newstrftime.3 newtzset.3 time2posix.3 \
tzfile.5 tzselect.8 zic.8 zdump.8
DOCS= README Theory $(MANS) date.1 Makefile
DOCS= README Theory date.1 Makefile
PRIMARY_YDATA= africa antarctica asia australasia \
europe northamerica southamerica
YDATA= $(PRIMARY_YDATA) pacificnew etcetera factory backward
@ -280,37 +273,28 @@ all: tzselect zic zdump $(LIBOBJS)
ALL: all date
install: all $(DATA) $(REDO) $(TZLIB) $(MANS) $(TABDATA)
install: ALL $(DATA) $(REDO) $(TABDATA)
$(ZIC) -y $(YEARISTYPE) \
-d $(TZDIR) -l $(LOCALTIME) -p $(POSIXRULES)
-rm -f $(TZDIR)/iso3166.tab $(TZDIR)/zone.tab
cp iso3166.tab zone.tab $(TZDIR)/.
-mkdir $(TOPDIR) $(ETCDIR)
cp tzselect zic zdump $(ETCDIR)/.
-mkdir $(TOPDIR) $(MANDIR) \
$(MANDIR)/man3 $(MANDIR)/man5 $(MANDIR)/man8
-rm -f $(MANDIR)/man3/newctime.3 \
$(MANDIR)/man3/newtzset.3 \
$(MANDIR)/man5/tzfile.5 \
$(MANDIR)/man8/tzselect.8 \
$(MANDIR)/man8/zdump.8 \
$(MANDIR)/man8/zic.8
cp newctime.3 newtzset.3 $(MANDIR)/man3/.
cp tzfile.5 $(MANDIR)/man5/.
cp tzselect.8 zdump.8 zic.8 $(MANDIR)/man8/.
install -m 644 iso3166.tab zone.tab $(TZDIR)/.
-mkdir $(TOPDIR) $(ETCDIR) 2>/dev/null
install -m 755 tzselect zic zdump $(ETCDIR)/.
-mkdir $(TOPDIR) 2>/dev/null
install -m 755 date /bin
INSTALL: ALL install date.1
-mkdir $(TOPDIR) $(BINDIR)
-mkdir $(TOPDIR) $(BINDIR) 2>/dev/null
cp date $(BINDIR)/.
-mkdir $(TOPDIR) $(MANDIR) $(MANDIR)/man1
-rm -f $(MANDIR)/man1/date.1
cp date.1 $(MANDIR)/man1/.
-mkdir $(TOPDIR) 2>/dev/null
zdump: $(TZDOBJS)
$(CC) $(CFLAGS) $(LFLAGS) $(TZDOBJS) $(LDLIBS) -o $@
install -S768k $@
zic: $(TZCOBJS) yearistype
$(CC) $(CFLAGS) $(LFLAGS) $(TZCOBJS) $(LDLIBS) -o $@
install -S1M $@
yearistype: yearistype.sh
cp yearistype.sh yearistype
@ -342,21 +326,11 @@ right_posix: right_only other_two
zones: $(REDO)
$(TZLIB): $(LIBOBJS)
-mkdir $(TOPDIR) $(LIBDIR)
ar ru $@ $(LIBOBJS)
if [ -x /usr/ucb/ranlib -o -x /usr/bin/ranlib ] ; \
then ranlib $@ ; fi
# We use the system's logwtmp in preference to ours if available.
date: $(DATEOBJS)
ar r ,lib.a logwtmp.o
if [ -x /usr/ucb/ranlib -o -x /usr/bin/ranlib ] ; \
then ranlib ,lib.a ; fi
$(CC) $(CFLAGS) date.o localtime.o asctime.o strftime.o \
$(LDLIBS) -lc ,lib.a -o $@
rm -f ,lib.a
date: $(DATEOBJS) logwtmp.o
$(CC) $(CFLAGS) date.o logwtmp.o localtime.o asctime.o \
strftime.o $(LDLIBS) -o $@
tzselect: tzselect.ksh
sed \
@ -390,7 +364,7 @@ names:
public: $(ENCHILADA)
make maintainer-clean
make "CFLAGS=$(GCC_DEBUG_FLAGS)"
-mkdir /tmp/,tzpublic
-mkdir /tmp/,tzpublic 2>/dev/null
-for i in $(TDATA) ; do zic -v -d /tmp/,tzpublic $$i 2>&1 | grep -v "starting year" ; done
for i in $(TDATA) ; do zic -d /tmp/,tzpublic $$i || exit; done
zic -v -d /tmp/,tzpublic $(TDATA) || exit

128
commands/zoneinfo/date.1.txt
View file

@ -1,128 +0,0 @@
NAME
date - show and set date and time
SYNOPSIS
date [ -u ] [ -c ] [ -n ] [ -d dsttype ] [ -t minutes-west ]
[ -a [+|-]sss.fff ] [ +format ] [ [yyyy]mmddhhmm[yy][.ss] ]
DESCRIPTION
Date without arguments writes the date and time to the
standard output in the form
Wed Mar 8 14:54:40 EST 1989
with EST replaced by the local time zone's abbreviation (or
by the abbreviation for the time zone specified in the TZ
environment variable if set). The exact output format
depends on the locale.
If a command-line argument starts with a plus sign (`+'),
the rest of the argument is used as a format that controls
what appears in the output. In the format, when a percent
sign (`%') appears, it and the character after it are not
output, but rather identify part of the date or time to be
output in a particular way (or identify a special character
to output):
Sample output Explanation
%a Wed Abbreviated weekday name*
%A Wednesday Full weekday name*
%b Mar Abbreviated month name*
%B March Full month name*
%c Wed Mar 08 14:54:40 1989 Date and time*
%C 19 Century
%d 08 Day of month (always two digits)
%D 03/08/89 Month/day/year (eight characters)
%e 8 Day of month (leading zero blanked)
%h Mar Abbreviated month name*
%H 14 24-hour-clock hour (two digits)
%I 02 12-hour-clock hour (two digits)
%j 067 Julian day number (three digits)
%k 2 12-hour-clock hour (leading zero blanked)
%l 14 24-hour-clock hour (leading zero blanked)
%m 03 Month number (two digits)
%M 54 Minute (two digits)
%n \n newline character
%p PM AM/PM designation
%r 02:54:40 PM Hour:minute:second AM/PM designation
%R 14:54 Hour:minute
%S 40 Second (two digits)
%t \t tab character
%T 14:54:40 Hour:minute:second
%U 10 Sunday-based week number (two digits)
%w 3 Day number (one digit, Sunday is 0)
%W 10 Monday-based week number (two digits)
%x 03/08/89 Date*
%X 14:54:40 Time*
%y 89 Last two digits of year
%Y 1989 Year in full
%Z EST Time zone abbreviation
%+ Wed Mar 8 14:54:40 EST 1989 Default output format*
* The exact output depends on the locale.
If a character other than one of those shown above appears
after a percent sign in the format, that following character
is output. All other characters in the format are copied
unchanged to the output; a newline character is always added
at the end of the output.
In Sunday-based week numbering, the first Sunday of the year
begins week 1; days preceding it are part of ``week 0.'' In
Monday-based week numbering, the first Monday of the year
begins week 1.
To set the date, use a command line argument with one of the
following forms:
1454 24-hour-clock hours (first two digits) and minutes
081454 Month day (first two digits), hours, and minutes
03081454 Month (two digits, January is 01), month day, hours, minutes
8903081454 Year, month, month day, hours, minutes
0308145489 Month, month day, hours, minutes, year
(on System V-compatible systems)
030814541989 Month, month day, hours, minutes, four-digit year
198903081454 Four-digit year, month, month day, hours, minutes
If the century, year, month, or month day is not given, the
current value is used. Any of the above forms may be
followed by a period and two digits that give the seconds
part of the new time; if no seconds are given, zero is
assumed.
These options are available:
-u or -c
Use UTC when setting and showing the date and time.
-n Do not notify other networked systems of the time
change.
-d dsttype
Set the kernel-stored Daylight Saving Time type to the
given value. (The kernel-stored DST type is used
mostly by ``old'' binaries.)
-t minutes-west
Set the kernel-stored ``minutes west of UTC'' value to
the one given on the command line. (The kernel-stored
DST type is used mostly by ``old'' binaries.)
-a adjustment
Change the time forward (or backward) by the number of
seconds (and fractions thereof) specified in the
adjustment argument. Either the seconds part or the
fractions part of the argument (but not both) may be
omitted. On BSD-based systems, the adjustment is made
by changing the rate at which time advances; on
System-V-based systems, the adjustment is made by
changing the time.
FILES
/usr/lib/locale/L/LC_TIME description of time
locale L
/usr/local/etc/zoneinfo time zone information
directory
/usr/local/etc/zoneinfo/localtime local time zone file
/usr/local/etc/zoneinfo/posixrules used with POSIX-style
TZ's
/usr/local/etc/zoneinfo/GMT for UTC leap seconds
If /usr/local/etc/zoneinfo/GMT is absent, UTC leap seconds
are loaded from /usr/local/etc/zoneinfo/posixrules.

15
commands/zoneinfo/date.c
View file

@ -24,6 +24,8 @@ static char elsieid[] = "@(#)date.c 7.45";
* WARRANTIES OF MERCHANT[A]BILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#include <fcntl.h> /* for O_WRONLY, O_APPEND */
#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1985, 1987, 1988 The Regents of the University of California.\n\
@ -63,8 +65,9 @@ static char sccsid[] = "@(#)date.c 4.23 (Berkeley) 9/20/88";
#define SECSPERMIN 60
#endif /* !defined SECSPERMIN */
extern double atof();
extern char ** environ;
#if 0
extern double atof();
extern char * getlogin();
extern time_t mktime();
extern char * optarg;
@ -72,6 +75,7 @@ extern int optind;
extern char * strchr();
extern time_t time();
extern char * tzname[2];
#endif
static int retval = EXIT_SUCCESS;
@ -315,6 +319,8 @@ dogmt()
{
static char ** fakeenv;
printf("dogmt wtf\n");
if (fakeenv == NULL) {
register int from;
register int to;
@ -348,8 +354,6 @@ dogmt()
** and don't have network notification to worry about.
*/
#include "fcntl.h" /* for O_WRONLY, O_APPEND */
/*ARGSUSED*/
static void
#if __STDC__
@ -448,9 +452,10 @@ const int nflag;
#include "netinet/in.h"
#include "netdb.h"
#define TSPTYPES
#include "protocols/timed.h"
#if 0
extern int logwtmp();
#endif
#if HAVE_SETTIMEOFDAY == 1
#define settimeofday(t, tz) (settimeofday)(t)
@ -563,7 +568,9 @@ const char * const format;
exit(retval);
}
#if 0
extern size_t strftime();
#endif
#define INCR 1024

25
commands/zoneinfo/ialloc.c
View file

@ -2,6 +2,9 @@
/*LINTLIBRARY*/
#include <string.h>
#include <stdlib.h>
#include "stdio.h"
#ifndef lint
@ -20,13 +23,15 @@ static char sccsid[] = "@(#)ialloc.c 7.14";
#define NULLMAL(x) ((x) == NULL)
#endif /* !MAL */
#if 0
extern char * calloc();
extern char * malloc();
extern char * realloc();
extern char * strcpy();
#endif
char *
imalloc(n)
imalloc(int n)
{
#ifdef MAL
register char * result;
@ -43,7 +48,7 @@ imalloc(n)
}
char *
icalloc(nelem, elsize)
icalloc(int nelem, int elsize)
{
if (nelem == 0 || elsize == 0)
nelem = elsize = 1;
@ -51,8 +56,7 @@ icalloc(nelem, elsize)
}
char *
irealloc(pointer, size)
char * pointer;
irealloc(char *pointer, int size)
{
if (NULLMAL(pointer))
return imalloc(size);
@ -62,9 +66,7 @@ char * pointer;
}
char *
icatalloc(old, new)
char * old;
char * new;
icatalloc(char *old, char *new)
{
register char * result;
register oldsize, newsize;
@ -78,21 +80,18 @@ char * new;
}
char *
icpyalloc(string)
char * string;
icpyalloc(char *string)
{
return icatalloc((char *) NULL, string);
}
ifree(p)
char * p;
ifree(char *p)
{
if (!NULLMAL(p))
free(p);
}
icfree(p)
char * p;
icfree(char *p)
{
if (!NULLMAL(p))
free(p);

27
commands/zoneinfo/localtime.c
View file

@ -311,8 +311,10 @@ register struct state * const sp;
register int i;
register int fid;
if (name == NULL && (name = TZDEFAULT) == NULL)
if (name == NULL && (name = TZDEFAULT) == NULL) {
return -1;
}
{
register int doaccess;
/*
@ -1058,8 +1060,9 @@ tzset P((void))
return;
}
if (lcl_is_set > 0 && strcmp(lcl_TZname, name) == 0)
if (lcl_is_set > 0 && strcmp(lcl_TZname, name) == 0) {
return;
}
lcl_is_set = strlen(name) < sizeof lcl_TZname;
if (lcl_is_set)
(void) strcpy(lcl_TZname, name);
@ -1159,9 +1162,7 @@ const time_t * const timep;
*/
struct tm *
localtime_r(timep, tmp)
const time_t * const timep;
struct tm * tmp;
localtime_r(const time_t * const timep, struct tm * tmp)
{
return localsub(timep, 0L, tmp);
}
@ -1221,9 +1222,7 @@ const time_t * const timep;
*/
struct tm *
gmtime_r(timep, tmp)
const time_t * const timep;
struct tm * tmp;
gmtime_r(const time_t * const timep, struct tm * tmp)
{
return gmtsub(timep, 0L, tmp);
}
@ -1401,9 +1400,7 @@ const time_t * const timep;
}
char *
ctime_r(timep, buf)
const time_t * const timep;
char * buf;
ctime_r(const time_t * const timep, char * buf)
{
struct tm mytm;
@ -1590,12 +1587,16 @@ const int do_norm_secs;
if (!TYPE_SIGNED(time_t)) {
lo = 0;
hi = lo - 1;
} else if (!TYPE_INTEGRAL(time_t)) {
}
#if 0
else if (!TYPE_INTEGRAL(time_t)) {
if (sizeof(time_t) > sizeof(float))
hi = (time_t) DBL_MAX;
else hi = (time_t) FLT_MAX;
lo = -hi;
} else {
}
#endif
else {
lo = 1;
for (i = 0; i < (int) TYPE_BIT(time_t) - 1; ++i)
lo *= 2;

10
commands/zoneinfo/logwtmp.c
View file

@ -29,7 +29,12 @@ static char sccsid[] = "@(#)logwtmp.c 5.2 (Berkeley) 9/20/88";
#endif /* !defined lint */
#include <sys/types.h>
#include <time.h>
#include <utmp.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#ifdef OLD_TIME
@ -45,14 +50,11 @@ char dummy_to_keep_linker_happy;
#define WTMPFILE "/usr/adm/wtmp"
logwtmp(line, name, host)
char *line, *name, *host;
void logwtmp( char *line, char *name, char *host)
{
struct utmp ut;
struct stat buf;
int fd;
time_t time();
char *strncpy();
if ((fd = open(WTMPFILE, O_WRONLY|O_APPEND, 0)) < 0)
return;

147
commands/zoneinfo/newctime.3.txt
View file

@ -1,147 +0,0 @@
NAME
asctime, ctime, difftime, gmtime, localtime, mktime -
convert date and time to ASCII
SYNOPSIS
extern char *tzname[2];
void tzset()
#include <sys/types.h>
char *ctime(clock)
const time_t *clock;
double difftime(time1, time0)
time_t time1;
time_t time0;
#include <time.h>
char *asctime(tm)
const struct tm *tm;
struct tm *localtime(clock)
const time_t *clock;
struct tm *gmtime(clock)
const time_t *clock;
time_t mktime(tm)
struct tm *tm;
cc ... -ltz
DESCRIPTION
Ctime converts a long integer, pointed to by clock,
representing the time in seconds since 00:00:00 UTC, 1970-
01-01, and returns a pointer to a string of the form
Thu Nov 24 18:22:48 1986\n\0
Years requiring fewer than four characters are padded with
leading zeroes. For years longer than four characters, the
string is of the form
Thu Nov 24 18:22:48 81986\n\0
with five spaces before the year. These unusual formats are
designed to make it less likely that older software that
expects exactly 26 bytes of output will mistakenly output
misleading values for out-of-range years.
Localtime and gmtime return pointers to ``tm'' structures,
described below. Localtime corrects for the time zone and
any time zone adjustments (such as Daylight Saving Time in
the United States). After filling in the ``tm'' structure,
localtime sets the tm_isdst'th element of tzname to a
pointer to an ASCII string that's the time zone abbreviation
to be used with localtime's return value.
Gmtime converts to Coordinated Universal Time.
Asctime converts a time value contained in a ``tm''
structure to a string, as shown in the above example, and
returns a pointer to the string.
Mktime converts the broken-down time, expressed as local
time, in the structure pointed to by tm into a calendar time
value with the same encoding as that of the values returned
by the time function. The original values of the tm_wday
and tm_yday components of the structure are ignored, and the
original values of the other components are not restricted
to their normal ranges. (A positive or zero value for
tm_isdst causes mktime to presume initially that summer time
(for example, Daylight Saving Time in the U.S.A.)
respectively, is or is not in effect for the specified time.
A negative value for tm_isdst causes the mktime function to
attempt to divine whether summer time is in effect for the
specified time.) On successful completion, the values of
the tm_wday and tm_yday components of the structure are set
appropriately, and the other components are set to represent
the specified calendar time, but with their values forced to
their normal ranges; the final value of tm_mday is not set
until tm_mon and tm_year are determined. Mktime returns the
specified calendar time; If the calendar time cannot be
represented, it returns -1.
Difftime returns the difference between two calendar times,
(time1 - time0), expressed in seconds.
Declarations of all the functions and externals, and the
``tm'' structure, are in the <time.h> header file. The
structure (of type) struct tm includes the following fields:
int tm_sec; /* seconds (0 - 60) */
int tm_min; /* minutes (0 - 59) */
int tm_hour; /* hours (0 - 23) */
int tm_mday; /* day of month (1 - 31) */
int tm_mon; /* month of year (0 - 11) */
int tm_year; /* year - 1900 */
int tm_wday; /* day of week (Sunday = 0) */
int tm_yday; /* day of year (0 - 365) */
int tm_isdst; /* is summer time in effect? */
char *tm_zone; /* abbreviation of timezone name */
long tm_gmtoff; /* offset from UTC in seconds */
The tm_zone and tm_gmtoff fields exist, and are filled in,
only if arrangements to do so were made when the library
containing these functions was created. There is no
guarantee that these fields will continue to exist in this
form in future releases of this code.
Tm_isdst is non-zero if summer time is in effect.
Tm_gmtoff is the offset (in seconds) of the time represented
from UTC, with positive values indicating east of the Prime
Meridian.
FILES
/usr/local/etc/zoneinfo time zone information
directory
/usr/local/etc/zoneinfo/localtime local time zone file
/usr/local/etc/zoneinfo/posixrules used with POSIX-style
TZ's
/usr/local/etc/zoneinfo/GMT for UTC leap seconds
If /usr/local/etc/zoneinfo/GMT is absent, UTC leap seconds
are loaded from /usr/local/etc/zoneinfo/posixrules.
SEE ALSO
getenv(3), newstrftime(3), newtzset(3), time(2), tzfile(5)
NOTES
The return values point to static data; the data is
overwritten by each call. The tm_zone field of a returned
struct tm points to a static array of characters, which will
also be overwritten at the next call (and by calls to
tzset).
Asctime and ctime behave strangely for years before 1000 or
after 9999. The 1989 and 1999 editions of the C Standard
say that years from -99 through 999 are converted without
extra spaces, but this conflicts with longstanding tradition
and with this implementation. Traditional implementations
of these two functions are restricted to years in the range
1900 through 2099. To avoid this portability mess, new
programs should use strftime instead.
Avoid using out-of-range values with mktime when setting up
lunch with promptness sticklers in Riyadh.

152
commands/zoneinfo/newstrftime.3.txt
View file

@ -1,152 +0,0 @@
NAME
strftime - format date and time
SYNOPSIS
#include <sys/types.h>
#include <time.h>
size_t strftime(buf, maxsize, format, timeptr)
char *buf;
size_t maxsize;
const char *format;
const struct tm *timeptr
cc ... -ltz
DESCRIPTION
The strftime function formats the information from timeptr
into the buffer buf according to the string pointed to by
format.
The format string consists of zero or more conversion
specifications and ordinary characters. All ordinary
characters are copied directly into the buffer. A
conversion specification consists of a percent sign and one
other character.
No more than maxsize characters are be placed into the
array. If the total number of resulting characters,
including the terminating null character, is not more than
maxsize, strftime returns the number of characters in the
array, not counting the terminating null. Otherwise, zero
is returned.
Each conversion specification is replaced by the characters
as follows which are then copied into the buffer.
%A is replaced by the locale's full weekday name.
%a is replaced by the locale's abbreviated weekday name.
%B is replaced by the locale's full month name.
%b or %h
is replaced by the locale's abbreviated month name.
%C is replaced by the century (a year divided by 100 and
truncated to an integer) as a decimal number (00-99).
%c is replaced by the locale's appropriate date and time
representation.
%D is replaced by the date in the format %m/%d/%y.
%d is replaced by the day of the month as a decimal number
(01-31).
%e is replaced by the day of month as a decimal number
(1-31); single digits are preceded by a blank.
%F is replaced by the date in the format %Y-%m-%d.
%G is replaced by the ISO 8601 year with century as a
decimal number.
%g is replaced by the ISO 8601 year without century as a
decimal number (00-99).
%H is replaced by the hour (24-hour clock) as a decimal
number (00-23).
%I is replaced by the hour (12-hour clock) as a decimal
number (01-12).
%j is replaced by the day of the year as a decimal number
(001-366).
%k is replaced by the hour (24-hour clock) as a decimal
number (0-23); single digits are preceded by a blank.
%l is replaced by the hour (12-hour clock) as a decimal
number (1-12); single digits are preceded by a blank.
%M is replaced by the minute as a decimal number (00-59).
%m is replaced by the month as a decimal number (01-12).
%n is replaced by a newline.
%p is replaced by the locale's equivalent of either AM or
PM.
%R is replaced by the time in the format %H:%M.
%r is replaced by the locale's representation of 12-hour
clock time using AM/PM notation.
%S is replaced by the second as a decimal number (00-60).
%s is replaced by the number of seconds since the Epoch,
UTC (see mktime(3)).
%T is replaced by the time in the format %H:%M:%S.
%t is replaced by a tab.
%U is replaced by the week number of the year (Sunday as
the first day of the week) as a decimal number (00-53).
%u is replaced by the weekday (Monday as the first day of
the week) as a decimal number (1-7).
%V is replaced by the week number of the year (Monday as
the first day of the week) as a decimal number (01-53).
If the week containing January 1 has four or more days
in the new year, then it is week 1; otherwise it is
week 53 of the previous year, and the next week is week
1.
%W is replaced by the week number of the year (Monday as
the first day of the week) as a decimal number (00-53).
%w is replaced by the weekday (Sunday as the first day of
the week) as a decimal number (0-6).
%X is replaced by the locale's appropriate time
representation.
%x is replaced by the locale's appropriate date
representation.
%Y is replaced by the year with century as a decimal
number.
%y is replaced by the year without century as a decimal
number (00-99).
%Z is replaced by the time zone name, or by the empty
string if this is not determinable.
%z is replaced by the offset from UTC in the format +HHMM
or -HHMM as appropriate, with positive values
representing locations east of Greenwich, or by the
empty string if this is not determinable.
%% is replaced by a single %.
%+ is replaced by the date and time in date(1) format.
SEE ALSO
date(1), getenv(3), newctime(3), newtzset(3), time(2),
tzfile(5)

153
commands/zoneinfo/newtzset.3.txt
View file

@ -1,153 +0,0 @@
NAME
tzset - initialize time conversion information
SYNOPSIS
void tzset()
cc ... -ltz
DESCRIPTION
Tzset uses the value of the environment variable TZ to set
time conversion information used by localtime. If TZ does
not appear in the environment, the best available
approximation to local wall clock time, as specified by the
tzfile(5)-format file localtime in the system time
conversion information directory, is used by localtime. If
TZ appears in the environment but its value is a null
string, Coordinated Universal Time (UTC) is used (without
leap second correction). If TZ appears in the environment
and its value is not a null string:
if the value begins with a colon, it is used as a
pathname of a file from which to read the time
conversion information;
if the value does not begin with a colon, it is first
used as the pathname of a file from which to read the
time conversion information, and, if that file cannot
be read, is used directly as a specification of the
time conversion information.
When TZ is used as a pathname, if it begins with a slash, it
is used as an absolute pathname; otherwise, it is used as a
pathname relative to a system time conversion information
directory. The file must be in the format specified in
tzfile(5).
When TZ is used directly as a specification of the time
conversion information, it must have the following syntax
(spaces inserted for clarity):
stdoffset[dst[offset][,rule]]
Where:
std and dst Three or more bytes that are the
designation for the standard (std) or
summer (dst) time zone. Only std is
required; if dst is missing, then summer
time does not apply in this locale.
Upper- and lowercase letters are
explicitly allowed. Any characters
except a leading colon (:), digits,
comma (,), minus (-), plus (+), and
ASCII NUL are allowed.
offset Indicates the value one must add to the
local time to arrive at Coordinated
Universal Time. The offset has the
form:
hh[:mm[:ss]]
The minutes (mm) and seconds (ss) are
optional. The hour (hh) is required and
may be a single digit. The offset
following std is required. If no offset
follows dst, summer time is assumed to
be one hour ahead of standard time. One
or more digits may be used; the value is
always interpreted as a decimal number.
The hour must be between zero and 24,
and the minutes (and seconds) - if
present - between zero and 59. If
preceded by a ``-'', the time zone shall
be east of the Prime Meridian; otherwise
it shall be west (which may be indicated
by an optional preceding ``+'').
rule Indicates when to change to and back
from summer time. The rule has the
form:
date/time,date/time
where the first date describes when the
change from standard to summer time
occurs and the second date describes
when the change back happens. Each time
field describes when, in current local
time, the change to the other time is
made.
The format of date is one of the
following:
Jn The Julian day n
(1 < n < 365). Leap days are
not counted; that is, in all
years - including leap years -
February 28 is day 59 and
March 1 is day 60. It is
impossible to explicitly refer
to the occasional February 29.
n The zero-based Julian day
(0 < n < 365). Leap days are
counted, and it is possible to
refer to February 29.
Mm.n.d The d'th day (0 < d < 6) of
week n of month m of the year
(1 < n < 5, 1 < m < 12, where
week 5 means ``the last d day
in month m'' which may occur
in either the fourth or the
fifth week). Week 1 is the
first week in which the d'th
day occurs. Day zero is
Sunday.
The time has the same format as offset
except that no leading sign (``-'' or
``+'') is allowed. The default, if time
is not given, is 02:00:00.
If no rule is present in TZ, the rules specified by the
tzfile(5)-format file posixrules in the system time
conversion information directory are used, with the standard
and summer time offsets from UTC replaced by those specified
by the offset values in TZ.
For compatibility with System V Release 3.1, a semicolon (;)
may be used to separate the rule from the rest of the
specification.
If the TZ environment variable does not specify a
tzfile(5)-format and cannot be interpreted as a direct
specification, UTC is used.
FILES
/usr/local/etc/zoneinfo time zone information
directory
/usr/local/etc/zoneinfo/localtime local time zone file
/usr/local/etc/zoneinfo/posixrules used with POSIX-style
TZ's
/usr/local/etc/zoneinfo/GMT for UTC leap seconds
If /usr/local/etc/zoneinfo/GMT is absent, UTC leap seconds
are loaded from /usr/local/etc/zoneinfo/posixrules.
SEE ALSO
getenv(3), newctime(3), newstrftime(3), time(2), tzfile(5)

4
commands/zoneinfo/private.h
View file

@ -81,6 +81,8 @@ static char privatehid[] = "@(#)private.h 7.55";
#define ctime_r _incompatible_ctime_r
#endif /* HAVE_INCOMPATIBLE_CTIME_R */
void logwtmp(char *, char *, char *);
/*
** Nested includes
*/
@ -203,7 +205,7 @@ extern int errno;
*/
#ifndef asctime_r
extern char * asctime_r();
extern char * asctime_r(register const struct tm *, char *);
#endif
/*

18
commands/zoneinfo/scheck.c
View file

@ -2,6 +2,9 @@
/*LINTLIBRARY*/
#include <string.h>
#include <stdlib.h>
#include "stdio.h"
#ifndef lint
@ -11,13 +14,12 @@ static char sccsid[] = "@(#)scheck.c 7.15";
#endif /* !lint */
#include "ctype.h"
#include "private.h"
extern char * imalloc();
char *
const char *
scheck(string, format)
char * string;
char * format;
const char * string;
const char * format;
{
register char * fbuf;
register char * fp;
@ -32,8 +34,8 @@ char * format;
fbuf = imalloc(2 * strlen(format) + 4);
if (fbuf == NULL)
return result;
fp = format;
tp = fbuf;
fp = (char *) format;
tp = (char *) fbuf;
while ((*tp++ = c = *fp++) != '\0') {
if (c != '%')
continue;
@ -58,7 +60,7 @@ char * format;
*tp++ = 'c';
*tp = '\0';
if (sscanf(string, fbuf, &dummy) != 1)
result = format;
result = (char *) format;
free(fbuf);
return result;
}

83
commands/zoneinfo/time2posix.3.txt
View file

@ -1,83 +0,0 @@
NAME
time2posix, posix2time - convert seconds since the Epoch
SYNOPSIS
#include <sys/types.h>
#include <time.h>
time_t time2posix(t)
time_t t
time_t posix2time(t)
time_t t
cc ... -ltz
DESCRIPTION
IEEE Standard 1003.1 (POSIX) legislates that a time_t value
of 536457599 shall correspond to "Wed Dec 31 23:59:59 UTC
1986." This effectively implies that POSIX time_t's cannot
include leap seconds and, therefore, that the system time
must be adjusted as each leap occurs.
If the time package is configured with leap-second support
enabled, however, no such adjustment is needed and time_t
values continue to increase over leap events (as a true
`seconds since...' value). This means that these values
will differ from those required by POSIX by the net number
of leap seconds inserted since the Epoch.
Typically this is not a problem as the type time_t is
intended to be (mostly) opaque-time_t values should only be
obtained-from and passed-to functions such as time(2),
localtime(3), mktime(3), and difftime(3). However, POSIX
gives an arithmetic expression for directly computing a
time_t value from a given date/time, and the same
relationship is assumed by some (usually older)
applications. Any programs creating/dissecting time_t's
using such a relationship will typically not handle
intervals over leap seconds correctly.
The time2posix and posix2time functions are provided to
address this time_t mismatch by converting between local
time_t values and their POSIX equivalents. This is done by
accounting for the number of time-base changes that would
have taken place on a POSIX system as leap seconds were
inserted or deleted. These converted values can then be
used in lieu of correcting the older applications, or when
communicating with POSIX-compliant systems.
Time2posix is single-valued. That is, every local time_t
corresponds to a single POSIX time_t. Posix2time is less
well-behaved: for a positive leap second hit the result is
not unique, and for a negative leap second hit the
corresponding POSIX time_t doesn't exist so an adjacent
value is returned. Both of these are good indicators of the
inferiority of the POSIX representation.
The following table summarizes the relationship between a
time T and it's conversion to, and back from, the POSIX
representation over the leap second inserted at the end of
June, 1993.
DATE TIME T X=time2posix(T) posix2time(X)
93/06/30 23:59:59 A+0 B+0 A+0
93/06/30 23:59:60 A+1 B+1 A+1 or A+2
93/07/01 00:00:00 A+2 B+1 A+1 or A+2
93/07/01 00:00:01 A+3 B+2 A+3
A leap second deletion would look like...
DATE TIME T X=time2posix(T) posix2time(X)
??/06/30 23:59:58 A+0 B+0 A+0
??/07/01 00:00:00 A+1 B+2 A+1
??/07/01 00:00:01 A+2 B+3 A+2
[Note: posix2time(B+1) => A+0 or A+1]
If leap-second support is not enabled, local time_t's and
POSIX time_t's are equivalent, and both time2posix and
posix2time degenerate to the identity function.
SEE ALSO
difftime(3), localtime(3), mktime(3), time(2)

93
commands/zoneinfo/tzfile.5.txt
View file

@ -1,93 +0,0 @@
NAME
tzfile - time zone information
SYNOPSIS
#include <tzfile.h>
DESCRIPTION
The time zone information files used by tzset(3) begin with
the magic characters "TZif" to identify then as time zone
information files, followed by sixteen bytes reserved for
future use, followed by six four-byte values of type long,
written in a ``standard'' byte order (the high-order byte of
the value is written first). These values are, in order:
tzh_ttisgmtcnt
The number of UTC/local indicators stored in the file.
tzh_ttisstdcnt
The number of standard/wall indicators stored in the
file.
tzh_leapcnt
The number of leap seconds for which data is stored in
the file.
tzh_timecnt
The number of "transition times" for which data is
stored in the file.
tzh_typecnt
The number of "local time types" for which data is
stored in the file (must not be zero).
tzh_charcnt
The number of characters of "time zone abbreviation
strings" stored in the file.
The above header is followed by tzh_timecnt four-byte values
of type long, sorted in ascending order. These values are
written in ``standard'' byte order. Each is used as a
transition time (as returned by time(2)) at which the rules
for computing local time change. Next come tzh_timecnt
one-byte values of type unsigned char; each one tells which
of the different types of ``local time'' types described in
the file is associated with the same-indexed transition
time. These values serve as indices into an array of ttinfo
structures that appears next in the file; these structures
are defined as follows:
struct ttinfo {
long tt_gmtoff;
int tt_isdst;
unsigned int tt_abbrind;
};
Each structure is written as a four-byte value for tt_gmtoff
of type long, in a standard byte order, followed by a one-
byte value for tt_isdst and a one-byte value for tt_abbrind.
In each structure, tt_gmtoff gives the number of seconds to
be added to UTC, tt_isdst tells whether tm_isdst should be
set by localtime (3) and tt_abbrind serves as an index into
the array of time zone abbreviation characters that follow
the ttinfo structure(s) in the file.
Then there are tzh_leapcnt pairs of four-byte values,
written in standard byte order; the first value of each pair
gives the time (as returned by time(2)) at which a leap
second occurs; the second gives the total number of leap
seconds to be applied after the given time. The pairs of
values are sorted in ascending order by time.
Then there are tzh_ttisstdcnt standard/wall indicators, each
stored as a one-byte value; they tell whether the transition
times associated with local time types were specified as
standard time or wall clock time, and are used when a time
zone file is used in handling POSIX-style time zone
environment variables.
Finally there are tzh_ttisgmtcnt UTC/local indicators, each
stored as a one-byte value; they tell whether the transition
times associated with local time types were specified as UTC
or local time, and are used when a time zone file is used in
handling POSIX-style time zone environment variables.
Localtime uses the first standard-time ttinfo structure in
the file (or simply the first ttinfo structure in the
absence of a standard-time structure) if either tzh_timecnt
is zero or the time argument is less than the first
transition time recorded in the file.
SEE ALSO
newctime(3)

2
commands/zoneinfo/tzfile.h
View file

@ -30,7 +30,7 @@ static char tzfilehid[] = "@(#)tzfile.h 7.18";
*/
#ifndef TZDIR
#define TZDIR "/usr/local/etc/zoneinfo" /* Time zone object file directory */
#define TZDIR "/usr/share/zoneinfo" /* Time zone object file directory */
#endif /* !defined TZDIR */
#ifndef TZDEFAULT

41
commands/zoneinfo/tzselect.8.txt
View file

@ -1,41 +0,0 @@
NAME
tzselect - select a time zone
SYNOPSIS
tzselect
DESCRIPTION
The tzselect program asks the user for information about the
current location, and outputs the resulting time zone
description to standard output. The output is suitable as a
value for the TZ environment variable.
All interaction with the user is done via standard input and
standard error.
ENVIRONMENT VARIABLES
AWK Name of a Posix-compliant awk program (default: awk).
TZDIR
Name of the directory containing time zone data files
(default: /usr/local/etc/zoneinfo).
FILES
TZDIR/iso3166.tab
Table of ISO 3166 2-letter country codes and country
names.
TZDIR/zone.tab
Table of country codes, latitude and longitude, TZ
values, and descriptive comments.
TZDIR/TZ
Time zone data file for time zone TZ.
EXIT STATUS
The exit status is zero if a time zone was successfully
obtained from the user, nonzero otherwise.
SEE ALSO
newctime(3), tzfile(5), zdump(8), zic(8)

43
commands/zoneinfo/zdump.8.txt
View file

@ -1,43 +0,0 @@
NAME
zdump - time zone dumper
SYNOPSIS
zdump [ --version ] [ -v ] [ -c [loyear,]hiyear ] [ zonename
... ]
DESCRIPTION
Zdump prints the current time in each zonename named on the
command line.
These options are available:
--version
Output version information and exit.
-v For each zonename on the command line, print the time
at the lowest possible time value, the time one day
after the lowest possible time value, the times both
one second before and exactly at each detected time
discontinuity, the time at one day less than the
highest possible time value, and the time at the
highest possible time value, Each line ends with
isdst=1 if the given time is Daylight Saving Time or
isdst=0 otherwise.
-c [loyear,]hiyear
Cut off verbose output near the start of the given
year(s). By default, the program cuts off verbose
output near the starts of the years -500 and 2500.
LIMITATIONS
The -v option may not be used on systems with floating-point
time_t values that are neither float nor double.
Time discontinuities are found by sampling the results
returned by localtime at twelve-hour intervals. This works
in all real-world cases; one can construct artificial time
zones for which this fails.
SEE ALSO
newctime(3), tzfile(5), zic(8)

9
commands/zoneinfo/zdump.c
View file

@ -236,9 +236,7 @@ const char * const zone;
}
int
main(argc, argv)
int argc;
char * argv[];
main( int argc, char * argv[])
{
register int i;
register int c;
@ -400,6 +398,7 @@ _("%s: usage is %s [ --version ] [ -v ] [ -c [loyear,]hiyear ] zonename ...\n"),
static void
setabsolutes()
{
#if 0
if (0.5 == (time_t) 0.5) {
/*
** time_t is floating.
@ -416,7 +415,9 @@ _("%s: use of -v on system with floating time_t other than float or double\n"),
progname);
exit(EXIT_FAILURE);
}
} else if (0 > (time_t) -1) {
} else
#endif
if (0 > (time_t) -1) {
/*
** time_t is signed. Assume overflow wraps around.
*/

259
commands/zoneinfo/zic.8.txt
View file

@ -1,259 +0,0 @@
NAME
zic - time zone compiler
SYNOPSIS
zic [ --version ] [ -v ] [ -d directory ] [ -l localtime ] [
-p posixrules ] [ -L leapsecondfilename ] [ -s ] [ -y
command ] [ filename ... ]
DESCRIPTION
Zic reads text from the file(s) named on the command line
and creates the time conversion information files specified
in this input. If a filename is -, the standard input is
read.
These options are available:
--version
Output version information and exit.
-d directory
Create time conversion information files in the named
directory rather than in the standard directory named
below.
-l timezone
Use the given time zone as local time. Zic will act as
if the input contained a link line of the form
Link timezone localtime
-p timezone
Use the given time zone's rules when handling POSIX-
format time zone environment variables. Zic will act
as if the input contained a link line of the form
Link timezone posixrules
-L leapsecondfilename
Read leap second information from the file with the
given name. If this option is not used, no leap second
information appears in output files.
-v Complain if a year that appears in a data file is
outside the range of years representable by time(2)
values. Also complain if a time of 24:00 (which cannot
be handled by pre-1998 versions of zic) appears in the
input.
-s Limit time values stored in output files to values that
are the same whether they're taken to be signed or
unsigned. You can use this option to generate SVVS-
compatible files.
-y command
Use the given command rather than yearistype when
checking year types (see below).
Input lines are made up of fields. Fields are separated
from one another by any number of white space characters.
Leading and trailing white space on input lines is ignored.
An unquoted sharp character (#) in the input introduces a
comment which extends to the end of the line the sharp
character appears on. White space characters and sharp
characters may be enclosed in double quotes (") if they're
to be used as part of a field. Any line that is blank
(after comment stripping) is ignored. Non-blank lines are
expected to be of one of three types: rule lines, zone
lines, and link lines.
A rule line has the form
Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
For example:
Rule US 1967 1973 - Apr lastSun 2:00 1:00 D
The fields that make up a rule line are:
NAME Gives the (arbitrary) name of the set of rules this
rule is part of.
FROM Gives the first year in which the rule applies. Any
integer year can be supplied; the Gregorian calendar
is assumed. The word minimum (or an abbreviation)
means the minimum year representable as an integer.
The word maximum (or an abbreviation) means the
maximum year representable as an integer. Rules can
describe times that are not representable as time
values, with the unrepresentable times ignored; this
allows rules to be portable among hosts with
differing time value types.
TO Gives the final year in which the rule applies. In
addition to minimum and maximum (as above), the word
only (or an abbreviation) may be used to repeat the
value of the FROM field.
TYPE Gives the type of year in which the rule applies.
If TYPE is - then the rule applies in all years
between FROM and TO inclusive. If TYPE is something
else, then zic executes the command
yearistype year type
to check the type of a year: an exit status of zero
is taken to mean that the year is of the given type;
an exit status of one is taken to mean that the year
is not of the given type.
IN Names the month in which the rule takes effect.
Month names may be abbreviated.
ON Gives the day on which the rule takes effect.
Recognized forms include:
5 the fifth of the month
lastSun the last Sunday in the month
lastMon the last Monday in the month
Sun>=8 first Sunday on or after the eighth
Sun<=25 last Sunday on or before the 25th
Names of days of the week may be abbreviated or
spelled out in full. Note that there must be no
spaces within the ON field.
AT Gives the time of day at which the rule takes
effect. Recognized forms include:
2 time in hours
2:00 time in hours and minutes
15:00 24-hour format time (for times after noon)
1:28:14 time in hours, minutes, and seconds
- equivalent to 0
where hour 0 is midnight at the start of the day,
and hour 24 is midnight at the end of the day. Any
of these forms may be followed by the letter w if
the given time is local "wall clock" time, s if the
given time is local "standard" time, or u (or g or
z) if the given time is universal time; in the
absence of an indicator, wall clock time is assumed.
SAVE Gives the amount of time to be added to local
standard time when the rule is in effect. This
field has the same format as the AT field (although,
of course, the w and s suffixes are not used).
LETTER/S
Gives the "variable part" (for example, the "S" or
"D" in "EST" or "EDT") of time zone abbreviations to
be used when this rule is in effect. If this field
is -, the variable part is null.
A zone line has the form
Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL]
For example:
Zone Australia/Adelaide 9:30 Aus CST 1971 Oct 31 2:00
The fields that make up a zone line are:
NAME The name of the time zone. This is the name used in
creating the time conversion information file for the
zone.
GMTOFF
The amount of time to add to UTC to get standard time
in this zone. This field has the same format as the
AT and SAVE fields of rule lines; begin the field with
a minus sign if time must be subtracted from UTC.
RULES/SAVE
The name of the rule(s) that apply in the time zone
or, alternately, an amount of time to add to local
standard time. If this field is - then standard time
always applies in the time zone.
FORMAT
The format for time zone abbreviations in this time
zone. The pair of characters %s is used to show where
the "variable part" of the time zone abbreviation
goes. Alternately, a slash (/) separates standard and
daylight abbreviations.
UNTIL The time at which the UTC offset or the rule(s) change
for a location. It is specified as a year, a month, a
day, and a time of day. If this is specified, the
time zone information is generated from the given UTC
offset and rule change until the time specified. The
month, day, and time of day have the same format as
the IN, ON, and AT columns of a rule; trailing columns
can be omitted, and default to the earliest possible
value for the missing columns.
The next line must be a "continuation" line; this has
the same form as a zone line except that the string
"Zone" and the name are omitted, as the continuation
line will place information starting at the time
specified as the UNTIL field in the previous line in
the file used by the previous line. Continuation
lines may contain an UNTIL field, just as zone lines
do, indicating that the next line is a further
continuation.
A link line has the form
Link LINK-FROM LINK-TO
For example:
Link Europe/Istanbul Asia/Istanbul
The LINK-FROM field should appear as the NAME field in some
zone line; the LINK-TO field is used as an alternate name
for that zone.
Except for continuation lines, lines may appear in any order
in the input.
Lines in the file that describes leap seconds have the
following form:
Leap YEAR MONTH DAY HH:MM:SS CORR R/S
For example:
Leap 1974 Dec 31 23:59:60 + S
The YEAR, MONTH, DAY, and HH:MM:SS fields tell when the leap
second happened. The CORR field should be "+" if a second
was added or "-" if a second was skipped. The R/S field
should be (an abbreviation of) "Stationary" if the leap
second time given by the other fields should be interpreted
as UTC or (an abbreviation of) "Rolling" if the leap second
time given by the other fields should be interpreted as
local wall clock time.
NOTES
For areas with more than two types of local time, you may
need to use local standard time in the AT field of the
earliest transition time's rule to ensure that the earliest
transition time recorded in the compiled file is correct.
If, for a particular zone, a clock advance caused by the
start of daylight saving coincides with and is equal to a
clock retreat caused by a change in UTC offset, zic produces
a single transition to daylight saving at the new UTC offset
(without any change in wall clock time). To get separate
transitions use multiple zone continuation lines specifying
transition instants using universal time.
FILE
/usr/local/etc/zoneinfo standard directory used for created
files
SEE ALSO
newctime(3), tzfile(5), zdump(8)

11
commands/zoneinfo/zic.c
View file

@ -437,8 +437,7 @@ const char * const string;
}
static void
warning(string)
const char * const string;
warning(const char * const string)
{
char * cp;
@ -467,9 +466,7 @@ static const char * yitcommand;
static int sflag = FALSE;
int
main(argc, argv)
int argc;
char * argv[];
main( int argc, char * argv[])
{
register int i;
register int j;
@ -1445,9 +1442,7 @@ FILE * const fp;
}
static int
atcomp(avp, bvp)
void * avp;
void * bvp;
atcomp(const void * avp, const void * bvp)
{
if (((struct attype *) avp)->at < ((struct attype *) bvp)->at)
return -1;