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FYI: date_parse - simple date parsing routine and programs
by Monty Solomon Feb. 21, 1995

Feb. 21, 1995

Newsgroups: alt.sources From: jef(a)netcom.com (Jef Poskanzer) Subject: date_parse - simple date parsing routine and programs Message-ID: <jefD3uzqC.Mos(a)netcom.com> Reply-To: Jef Poskanzer <jef(a)netcom.com> Organization: Paratheo-Anametamystikhood Of Eris Esoteric Date: Sat, 11 Feb 1995 23:25:24 GMT Lines: 2048 Sender: jef(a)netcom18.netcom.com date_parse - date parsing routine and programs version 1.0 of 11feb95 For a while now I've been somewhat unhappy with the various date-parsing routines available - yacc-based, lex-based, ad-hoc. Large code size and not very portable are the main complaints. So I wrote a new one that just does a bunch of sscanf's until one matches. Slow, but small and portable. To figure out what formats to support I did a survey of Date: lines in a bunch of Usenet articles. The following two formats accounted for more than 99% of all articles: N mth YYYY HH:MM:SS ampm zone wdy, N mth YYYY HH:MM:SS ampm zone I added Unix ctime() format and a few others: wdy mth N HH:MM:SS ampm zone YYYY HH:MM:SS ampm zone N mth YYYY N mth YYYY HH:MM:SS ampm No-zone, no-seconds, and no-am/pm versions of each are also supported. Note that dd/mm/yy and mm/dd/yy are NOT supported - those formats are dumb. Aside from the date-parsing routine, this package includes some programs that exercise it: o date_sort - sort a file's lines by date o date_order - order a list of files by netnews/mail-format Date: lines o deltime - subtract two times and show the difference o xmit_time - figure transmission time of netnews articles - - - - - - - - - - #! /bin/sh # This is a shell archive, meaning: # 1. Remove everything above the #! /bin/sh line. # 2. Save the resulting text in a file. # 3. Execute the file with /bin/sh (not csh) to create the files: # Makefile # README # ctime.c # date_order.1 # date_order.c # date_parse.3 # date_parse.c # date_sort.1 # date_sort.c # deltime.1 # deltime.c # dptest.c # test_input # test_output # xmit_time.1 # xmit_time.c # This archive created: Sat Feb 11 15:21:30 1995 # By: Jef Poskanzer export PATH; PATH=/bin:$PATH echo shar: extracting "'Makefile'" '(1873 characters)' if test -f 'Makefile' then echo shar: will not over-write existing file "'Makefile'" else sed 's/^X//' << \SHAR_EOF > 'Makefile' X# Makefile for date_parse and friends X X# CONFIGURE: the directory where you want the library installed XLIBDIR = /usr/local/lib X X# CONFIGURE: the directory where you want the executables installed XBINDIR = /usr/local/bin X X# CONFIGURE: the directory tree where you want the man pages installed XMANDIR = /usr/local/man X X# CONFIGURE: type of system - uncomment one of these XDEFINES = -DBSD X#DEFINES = -DSYSV X X# CONFIGURE: your compiler X#CC = cc XCC = gcc -ansi -pedantic X X# CONFIGURE: your compiler flags XCFLAGS = -O $(DEFINES) X#CFLAGS = -g $(DEFINES) X#CFLAGS = $(DEFINES) X X# CONFIGURE: your loader flags XLDFLAGS = -s X#LDFLAGS = X X# End of configurable definitions. X XLIB = libdate_parse.a XEXES = date_order date_sort deltime xmit_time X Xall: $(LIB) $(EXES) X Xlibdate_parse.a: date_parse.o X rm -f libdate_parse.a X ar rc libdate_parse.a date_parse.o X -ranlib libdate_parse.a X Xdate_order: date_order.c $(LIB) X $(CC) $(CFLAGS) $(LDFLAGS) date_order.c $(LIB) -o date_order X Xdate_sort: date_sort.c $(LIB) X $(CC) $(CFLAGS) $(LDFLAGS) date_sort.c $(LIB) -o date_sort X Xdeltime: deltime.c $(LIB) X $(CC) $(CFLAGS) $(LDFLAGS) deltime.c $(LIB) -o deltime X Xxmit_time: xmit_time.c $(LIB) X $(CC) $(CFLAGS) $(LDFLAGS) xmit_time.c $(LIB) -o xmit_time X Xctime: ctime.c X $(CC) $(CFLAGS) $(LDFLAGS) ctime.c -o ctime X X.c.o: X $(CC) $(CFLAGS) -c $< X Xtest: all dptest X ./dptest < test_input | diff test_output - X Xdptest: dptest.c $(LIB) X $(CC) $(CFLAGS) $(LDFLAGS) dptest.c $(LIB) -o dptest X Xinstall: all X for i in $(LIB) ; do \ X rm -f $(LIBDIR)/$$i ; \ X cp $$i $(LIBDIR) ; \ X done X for i in $(EXES) ; do \ X rm -f $(BINDIR)/$$i ; \ X cp $$i $(BINDIR) ; \ X done X rm -f $(MANDIR)/man3/date_parse.3 X cp date_parse.3 $(MANDIR)/man3 X for i in $(EXES) ; do \ X rm -f $(MANDIR)/man1/$$i.1 ; \ X cp $$i.1 $(MANDIR)/man1 ; \ X done X Xclean: X rm -f *.o *.a $(EXES) dptest ctime a.out core SHAR_EOF if test 1873 -ne "`wc -c < 'Makefile'`" then echo shar: error transmitting "'Makefile'" '(should have been 1873 characters)' fi fi # end of overwriting check echo shar: extracting "'README'" '(1546 characters)' if test -f 'README' then echo shar: will not over-write existing file "'README'" else sed 's/^X//' << \SHAR_EOF > 'README' X date_parse - date parsing routine and programs X version 1.0 of 11feb95 X XFor a while now I've been somewhat unhappy with the various Xdate-parsing routines available - yacc-based, lex-based, ad-hoc. Large Xcode size and not very portable are the main complaints. So I wrote a Xnew one that just does a bunch of sscanf's until one matches. Slow, Xbut small and portable. To figure out what formats to support I did a Xsurvey of Date: lines in a bunch of Usenet articles. The following two Xformats accounted for more than 99% of all articles: X X N mth YYYY HH:MM:SS ampm zone X wdy, N mth YYYY HH:MM:SS ampm zone X XI added Unix ctime() format and a few others: X X wdy mth N HH:MM:SS ampm zone YYYY X HH:MM:SS ampm zone N mth YYYY X N mth YYYY X HH:MM:SS ampm X XNo-zone, no-seconds, and no-am/pm versions of each are also supported. XNote that dd/mm/yy and mm/dd/yy are NOT supported - those formats are Xdumb. X XAside from the date-parsing routine, this package includes some programs Xthat exercise it: X o date_sort - sort a file's lines by date X o date_order - order a list of files by netnews/mail-format Date: lines X o deltime - subtract two times and show the difference X o xmit_time - figure transmission time of netnews articles X XSee the manual entries for more details. X X XTo install: X Unpack the files. X Edit the Makefile to change the configuration options if necessary. X Make test to check that it works right. X Make install. X XComments to: X Jef Poskanzer jef(a)netcom.com jef(a)well.com SHAR_EOF if test 1546 -ne "`wc -c < 'README'`" then echo shar: error transmitting "'README'" '(should have been 1546 characters)' fi fi # end of overwriting check echo shar: extracting "'ctime.c'" '(225 characters)' if test -f 'ctime.c' then echo shar: will not over-write existing file "'ctime.c'" else sed 's/^X//' << \SHAR_EOF > 'ctime.c' X/* simple debugging tool */ X X#include <stdio.h> X#include <time.h> X Xvoid Xmain( argc, argv ) X int argc; X char* argv[]; X { X time_t t; X X t = atoi( argv[1] ); X printf( "%s\n", ctime( &t ) ); X exit( 0 ); X } SHAR_EOF if test 225 -ne "`wc -c < 'ctime.c'`" then echo shar: error transmitting "'ctime.c'" '(should have been 225 characters)' fi fi # end of overwriting check echo shar: extracting "'date_order.1'" '(1535 characters)' if test -f 'date_order.1' then echo shar: will not over-write existing file "'date_order.1'" else sed 's/^X//' << \SHAR_EOF > 'date_order.1' X.TH date_order 1 "11 February 1995" X.SH NAME Xdate_order - order filenames by date X.SH SYNOPSIS X.B date_order X.RI [ file X.IR ... ] X.SH DESCRIPTION X.PP XGiven a set of filenames as arguments, looks in each file for Xan email/netnews-format Date: line and writes the filenames out again Xsorted by the dates. X.PP XThis does not change or rearrange the actual files in any way. XAll it does it produce a new list of the fileNAMEs, sorted by the dates Xin the files. X.PP XThe intended use is with a shell's backquote construct. XFor instance, if you have a version of uudecode that automatically Xskips headers and trailers and handles multiple input and output files X(such as my version), Xthen you can decode the entire current contents of a picture-newsgroup spool Xdirectory with one command: X.nf X uudecode `date_order *` X.fi XThe reason you want to use date_order instead of just doing "uudecode *" Xis that netnews articles often arrive out of order. XUsing date_order hands them to uudecode in the order they were posted. X.SH "SEE ALSO" Xdate_sort(1), deltime(1), xmit_time(1), date_parse(3), uudecode(1) X.SH AUTHOR XCopyright (C) 1995 by Jef Poskanzer. X.\" Permission to use, copy, modify, and distribute this software and its X.\" documentation for any purpose and without fee is hereby granted, provided X.\" that the above copyright notice appear in all copies and that both that X.\" copyright notice and this permission notice appear in supporting X.\" documentation. This software is provided "as is" without express or X.\" implied warranty. SHAR_EOF if test 1535 -ne "`wc -c < 'date_order.1'`" then echo shar: error transmitting "'date_order.1'" '(should have been 1535 characters)' fi fi # end of overwriting check echo shar: extracting "'date_order.c'" '(3040 characters)' if test -f 'date_order.c' then echo shar: will not over-write existing file "'date_order.c'" else sed 's/^X//' << \SHAR_EOF > 'date_order.c' X/* date_order - order filenames by date X** X** Copyright (C) 1995 by Jef Poskanzer <jef(a)netcom.com>. X** X** Permission to use, copy, modify, and distribute this software and its X** documentation for any purpose and without fee is hereby granted, provided X** that the above copyright notice appear in all copies and that both that X** copyright notice and this permission notice appear in supporting X** documentation. This software is provided "as is" without express or X** implied warranty. X*/ X X#include <stdio.h> X#include <string.h> X#include <malloc.h> X#include <time.h> X Xextern time_t date_parse(); X Xstatic void usage(); Xstatic time_t date_file(); Xstatic int file_compare(); Xstatic char* my_malloc(); Xstatic char* my_realloc(); Xstatic void out_of_mem(); X Xstatic char* argv0; X Xstruct file X { X char* name; X time_t date; X }; X Xstatic int maxfiles, nfiles; Xstatic struct file* files; X Xvoid Xmain( argc, argv ) X int argc; X char* argv[]; X { X int argn; X int i; X X argv0 = argv[0]; X argn = 1; X if ( argn < argc && argv[argn][0] == '-' && argv[argn][1] != '\0' ) X usage(); X X maxfiles = argc - argn; X files = (struct file*) my_malloc( maxfiles * sizeof(struct file) ); X nfiles = 0; X X while ( argn < argc ) X { X files[nfiles].name = (char*) my_malloc( strlen( argv[argn] ) + 1 ); X (void) strcpy( files[nfiles].name, argv[argn] ); X files[nfiles].date = date_file( argv[argn] ); X ++nfiles; X ++argn; X } X X qsort( files, nfiles, sizeof(struct file), file_compare ); X X for ( i = 0; i < nfiles; ++i ) X { X if ( i != 0 ) X putchar( ' ' ); X fputs( files[i].name, stdout ); X } X putchar( '\n' ); X X exit( 0 ); X } X Xstatic void Xusage() X { X (void) fprintf( stderr, "usage: %s [file ...]\n", argv0 ); X exit( 1 ); X } X Xstatic time_t Xdate_file( name ) X char* name; X { X FILE* f; X char line[30000]; X time_t t; X X f = fopen( name, "r" ); X if ( f == (FILE*) 0 ) X { X perror( name ); X return (time_t) -1; X } X X for (;;) X { X if ( fgets( line, sizeof(line), f ) == (char*) 0 ) X break; X if ( line[0] == '\n' ) X break; X if ( strncmp( line, "Date:", 5 ) == 0 ) X { X (void) fclose( f ); X t = date_parse( &line[5] ); X if ( t == (time_t) -1 ) X (void) fprintf( X stderr, "%s: unparsable date in %s - %s", X argv0, name, &line[5] ); X return t; X } X } X X (void) fprintf( stderr, "%s: no Date: line found in %s\n", argv0, name ); X (void) fclose( f ); X return (time_t) -1; X } X Xstatic int Xfile_compare( f1, f2 ) X struct file* f1; X struct file* f2; X { X return f1->date - f2->date; X } X Xstatic char* Xmy_malloc( size ) X unsigned size; X { X char* r; X X r = malloc( size ); X if ( r == (char*) 0 ) X out_of_mem(); X return r; X } X Xstatic char* Xmy_realloc( p, size ) X char* p; X unsigned size; X { X char* r; X X r = realloc( p, size ); X if ( r == (char*) 0 ) X out_of_mem(); X return r; X } X Xstatic void Xout_of_mem() X { X (void) fprintf( stderr, "%s: out of memory\n", argv0 ); X exit( 1 ); X } SHAR_EOF if test 3040 -ne "`wc -c < 'date_order.c'`" then echo shar: error transmitting "'date_order.c'" '(should have been 3040 characters)' fi fi # end of overwriting check echo shar: extracting "'date_parse.3'" '(1789 characters)' if test -f 'date_parse.3' then echo shar: will not over-write existing file "'date_parse.3'" else sed 's/^X//' << \SHAR_EOF > 'date_parse.3' X.TH date_parse 3 "11 February 1995" X.SH NAME Xdate_parse - parse string dates into internal form X.SH SYNOPSIS Xtime_t date_parse( char* str ) X.SH DESCRIPTION X.PP XParses a date string into standard Unix internal time form (seconds Xsince epoch). XThe date should be in one of the following formats: X.nf X N mth YYYY HH:MM:SS ampm zone X HH:MM:SS ampm zone N mth YYYY X wdy, N mth YYYY HH:MM:SS ampm zone X wdy mth N HH:MM:SS ampm zone YYYY X N mth YYYY X HH:MM:SS ampm X.fi XNo-zone, no-seconds, and no-am/pm versions of each are also allowed. XAny missing parts default to the current date/time. XNote that dd/mm/yy and mm/dd/yy are not supported - those formats are dumb. X.SH SPEED X.PP XThe implementation is just a bunch of sscanf's - small and portable, but slow. XStill, it's not that bad. XOn a SPARCstation 2 parsing ~70000 random dates, the average time Xwas 0.94 msec/date. XThis compares surprising well with the lex-based date parser from Xthe MH package, which took 0.34 msec/date in the same test. XThe yacc-based parser used in many netnews packages is about halfway Xbetween the two. X.PP XIn any application which has to open a file for each date - and both XMH and netnews are such applications - the difference in date parsing Xspeed will not be perceptible to the user. X.SH "SEE ALSO" Xdate_sort(1), date_order(1), deltime(1), xmit_time(1) X.SH AUTHOR XCopyright (C) 1995 by Jef Poskanzer. X.\" Permission to use, copy, modify, and distribute this software and its X.\" documentation for any purpose and without fee is hereby granted, provided X.\" that the above copyright notice appear in all copies and that both that X.\" copyright notice and this permission notice appear in supporting X.\" documentation. This software is provided "as is" without express or X.\" implied warranty. SHAR_EOF if test 1789 -ne "`wc -c < 'date_parse.3'`" then echo shar: error transmitting "'date_parse.3'" '(should have been 1789 characters)' fi fi # end of overwriting check echo shar: extracting "'date_parse.c'" '(19522 characters)' if test -f 'date_parse.c' then echo shar: will not over-write existing file "'date_parse.c'" else sed 's/^X//' << \SHAR_EOF > 'date_parse.c' X/* date_parse - parse string dates into internal form X** X** Copyright (C) 1995 by Jef Poskanzer <jef(a)netcom.com>. X** X** Permission to use, copy, modify, and distribute this software and its X** documentation for any purpose and without fee is hereby granted, provided X** that the above copyright notice appear in all copies and that both that X** copyright notice and this permission notice appear in supporting X** documentation. This software is provided "as is" without express or X** implied warranty. X*/ X X/* For a while now I've been somewhat unhappy with the various X** date-parsing routines available - yacc-based, lex-based, ad-hoc. Large X** code size and not very portable are the main complaints. So I wrote a X** new one that just does a bunch of sscanf's until one matches. Slow, X** but small and portable. To figure out what formats to support I did a X** survey of Date: lines in a bunch of Usenet articles. The following X** two formats accounted for more than 99% of all articles: X** N mth YYYY HH:MM:SS ampm zone X** wdy, N mth YYYY HH:MM:SS ampm zone X** I added Unix ctime() format and a few others: X** wdy mth N HH:MM:SS ampm zone YYYY X** HH:MM:SS ampm zone N mth YYYY X** N mth YYYY X** HH:MM:SS ampm X** No-zone, no-seconds, and no-am/pm versions of each are also supported. X** Note that dd/mm/yy and mm/dd/yy are NOT supported - those formats are X** dumb. X*/ X X#include <sys/types.h> X#include <stdio.h> X#include <string.h> X#include <ctype.h> X#include <time.h> X X#ifdef SYSV Xextern long timezone; X#define bzero(p, n) memset(p, 0, n) X#endif /* SYSV */ X X#undef DEBUG X X#ifdef DEBUG X#define DP(str) (void) fprintf( stderr, "%s\n", str ) X#else X#define DP(str) (0) X#endif X Xstruct strint { X char* s; X int i; X }; X Xstatic void Xpound_case( str ) X char* str; X { X for ( ; *str != '\0'; ++str ) X { X if ( isupper( *str ) ) X *str = tolower( *str ); X } X } X Xstatic int Xstrint_compare( v1, v2 ) X char* v1; X char* v2; X { X return strcmp( ((struct strint*) v1)->s, ((struct strint*) v2)->s ); X } X Xstatic int Xstrint_search( str, tab, n, iP ) X char* str; X struct strint* tab; X int n; X int* iP; X { X int i, h, l, r; X X l = 0; X h = n - 1; X for (;;) X { X i = ( h + l ) / 2; X r = strcmp( str, tab[i].s ); X if ( r < 0 ) X h = i - 1; X else if ( r > 0 ) X l = i + 1; X else X { X *iP = tab[i].i; X return 1; X } X if ( h < l ) X return 0; X } X } X X#define AMPM_NONE 0 X#define AMPM_AM 1 X#define AMPM_PM 2 Xstatic int Xampm_fix( hour, ampm ) X int hour, ampm; X { X switch ( ampm ) X { X case AMPM_NONE: X break; X case AMPM_AM: X if ( hour == 12 ) X hour = 0; X break; X case AMPM_PM: X if ( hour != 12 ) X hour += 12; X break; X } X return hour; X } X Xstatic int Xscan_ampm( str_ampm, ampmP ) X char* str_ampm; X int* ampmP; X { X static struct strint ampm_tab[] = { X { "am", AMPM_AM }, { "pm", AMPM_PM }, X }; X static int sorted = 0; X X if ( ! sorted ) X { X (void) qsort( X ampm_tab, sizeof(ampm_tab)/sizeof(struct strint), X sizeof(struct strint), strint_compare ); X sorted = 1; X } X pound_case( str_ampm ); X return strint_search( X str_ampm, ampm_tab, sizeof(ampm_tab)/sizeof(struct strint), ampmP ); X } X Xstatic int Xscan_wday( str_wday, tm_wdayP ) X char* str_wday; X int* tm_wdayP; X { X static struct strint wday_tab[] = { X { "sun", 0 }, { "sunday", 0 }, X { "mon", 1 }, { "monday", 1 }, X { "tue", 2 }, { "tuesday", 2 }, X { "wed", 3 }, { "wednesday", 3 }, X { "thu", 4 }, { "thursday", 4 }, X { "fri", 5 }, { "friday", 5 }, X { "sat", 6 }, { "saturday", 6 }, X }; X static int sorted = 0; X X if ( ! sorted ) X { X (void) qsort( X wday_tab, sizeof(wday_tab)/sizeof(struct strint), X sizeof(struct strint), strint_compare ); X sorted = 1; X } X pound_case( str_wday ); X return strint_search( X str_wday, wday_tab, sizeof(wday_tab)/sizeof(struct strint), tm_wdayP ); X } X Xstatic int Xscan_mon( str_mon, tm_monP ) X char* str_mon; X int* tm_monP; X { X static struct strint mon_tab[] = { X { "jan", 0 }, { "january", 0 }, X { "feb", 1 }, { "february", 1 }, X { "mar", 2 }, { "march", 2 }, X { "apr", 3 }, { "april", 3 }, X { "may", 4 }, X { "jun", 5 }, { "june", 5 }, X { "jul", 6 }, { "july", 6 }, X { "aug", 7 }, { "august", 7 }, X { "sep", 8 }, { "september", 8 }, X { "oct", 9 }, { "october", 9 }, X { "nov", 10 }, { "november", 10 }, X { "dec", 11 }, { "december", 11 }, X }; X static int sorted = 0; X X if ( ! sorted ) X { X (void) qsort( X mon_tab, sizeof(mon_tab)/sizeof(struct strint), X sizeof(struct strint), strint_compare ); X sorted = 1; X } X pound_case( str_mon ); X return strint_search( X str_mon, mon_tab, sizeof(mon_tab)/sizeof(struct strint), tm_monP ); X } X Xstatic int Xscan_gmtoff( str_gmtoff, gmtoffP ) X char* str_gmtoff; X int* gmtoffP; X { X static struct strint gmtoff_tab[] = { X { "gmt", 0 }, { "utc", 0 }, { "ut", 0 }, X { "0000", 0 }, { "+0000", 0 }, { "-0000", 0 }, X { "0100", 3600 }, { "+0100", 3600 }, { "-0100", -3600 }, X { "0200", 7200 }, { "+0200", 7200 }, { "-0200", -7200 }, X { "0300", 10800 }, { "+0300", 10800 }, { "-0300", -10800 }, X { "0400", 14400 }, { "+0400", 14400 }, { "-0400", -14400 }, X { "0500", 18000 }, { "+0500", 18000 }, { "-0500", -18000 }, X { "0600", 21600 }, { "+0600", 21600 }, { "-0600", -21600 }, X { "0700", 25200 }, { "+0700", 25200 }, { "-0700", -25200 }, X { "0800", 28800 }, { "+0800", 28800 }, { "-0800", -28800 }, X { "0900", 32400 }, { "+0900", 32400 }, { "-0900", -32400 }, X { "1000", 36000 }, { "+1000", 36000 }, { "-1000", -36000 }, X { "1100", 39600 }, { "+1100", 39600 }, { "-1100", -39600 }, X { "1200", 43200 }, { "+1200", 43200 }, { "-1200", -43200 }, X { "jst", 7200 }, { "jdt", 10800 }, X { "bst", -3600 }, X { "nst", -12600 }, X { "ast", -14400 }, { "edt", -10800 }, X { "est", -18000 }, { "edt", -14400 }, X { "cst", -21600 }, { "cdt", -18000 }, X { "mst", -25200 }, { "mdt", -21600 }, X { "pst", -28800 }, { "pdt", -25200 }, X { "yst", -32400 }, { "ydt", -28800 }, X { "hst", -36000 }, { "hdt", -32400 }, X { "a", -3600 }, { "b", -7200 }, { "c", -10800 }, { "d", -14400 }, X { "e", -18000 }, { "f", -21600 }, { "g", -25200 }, { "h", -28800 }, X { "i", -32400 }, { "k", -36000 }, { "l", -39600 }, { "m", -43200 }, X { "n", -3600 }, { "o", -7200 }, { "p", -10800 }, { "q", -14400 }, X { "r", -18000 }, { "s", -21600 }, { "t", -25200 }, { "u", -28800 }, X { "v", -32400 }, { "w", -36000 }, { "x", -39600 }, { "y", -43200 }, X }; X static int sorted = 0; X X if ( ! sorted ) X { X (void) qsort( X gmtoff_tab, sizeof(gmtoff_tab)/sizeof(struct strint), X sizeof(struct strint), strint_compare ); X sorted = 1; X } X pound_case( str_gmtoff ); X return strint_search( X str_gmtoff, gmtoff_tab, sizeof(gmtoff_tab)/sizeof(struct strint), X gmtoffP ); X } X Xstatic int Xis_leap( year ) X int year; X { X return year % 400? ( year % 100 ? ( year % 4 ? 0 : 1 ) : 0 ) : 1; X } X X/* Basically the same as mktime(). */ Xstatic time_t Xtm_to_time( tmP ) X struct tm* tmP; X { X time_t t; X static int monthtab[12] = { X 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 }; X X /* Years since epoch, converted to days. */ X t = ( tmP->tm_year - 70 ) * 365; X /* Leap days for previous years. */ X t += ( tmP->tm_year - 68 ) / 4; X /* Days for the beginning of this month. */ X t += monthtab[tmP->tm_mon]; X /* Leap day for this year. */ X if ( tmP->tm_mon >= 2 && is_leap( tmP->tm_year ) ) X ++t; X /* Days since the beginning of this month. */ X t += tmP->tm_mday - 1; /* 1-based field */ X /* Hours, minutes, and seconds. */ X t = t * 24 + tmP->tm_hour; X t = t * 60 + tmP->tm_min; X t = t * 60 + tmP->tm_sec; X X return t; X } X Xtime_t Xdate_parse( str ) X char* str; X { X time_t now; X struct tm* now_tmP; X struct tm tm; X char* cp; X char str_mon[500], str_wday[500], str_gmtoff[500], str_ampm[500]; X int tm_sec, tm_min, tm_hour, tm_mday, tm_mon, tm_year, tm_wday, gmtoff; X int ampm, got_zone; X time_t t; X X /* Initialize tm with relevant parts of current local time. */ X now = time( (time_t*) 0 ); X now_tmP = localtime( &now ); X X bzero( (char*) &tm, sizeof(struct tm) ); X tm.tm_sec = now_tmP->tm_sec; X tm.tm_min = now_tmP->tm_min; X tm.tm_hour = now_tmP->tm_hour; X tm.tm_mday = now_tmP->tm_mday; X tm.tm_mon = now_tmP->tm_mon; X tm.tm_year = now_tmP->tm_year; X ampm = AMPM_NONE; X got_zone = 0; X X /* Find local zone offset. This is the only real area of X ** non-portability, and it's only used for local times that don't X ** specify a zone - those don't occur in email and netnews. X */ X#ifdef SYSV X tzset(); X gmtoff = -timezone; X#else /* SYSV */ X#ifdef BSD X gmtoff = now_tmP->tm_gmtoff; X#else /* BSD */ X /* You have to fill this in yourself. */ X gmtoff = !!!; X#endif /* BSD */ X#endif /* SYSV */ X X /* Skip initial whitespace ourselves - sscanf is clumsy at this. */ X for ( cp = str; *cp == ' ' || *cp == '\t'; ++cp ) X ; X X /* And do the sscanfs. WARNING: you can add more formats here, X ** but be careful! You can easily screw up the parsing of existing X ** formats when you add new ones. X */ X X /* N mth YYYY HH:MM:SS ampm zone */ X if ( ( ( sscanf( cp, "%d %[a-zA-Z] %d %d:%d:%d %[apmAPM] %[^: ]", X &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min, &tm_sec, X str_ampm, str_gmtoff ) == 8 && X scan_ampm( str_ampm, &ampm ) ) || X sscanf( cp, "%d %[a-zA-Z] %d %d:%d:%d %[^: ]", X &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min, &tm_sec, X str_gmtoff ) == 7 ) && X scan_mon( str_mon, &tm_mon ) && X scan_gmtoff( str_gmtoff, &gmtoff ) ) X { X DP( "N mth YYYY HH:MM:SS ampm zone" ); X tm.tm_mday = tm_mday; X tm.tm_mon = tm_mon; X tm.tm_year = tm_year; X tm.tm_hour = ampm_fix( tm_hour, ampm ); X tm.tm_min = tm_min; X tm.tm_sec = tm_sec; X got_zone = 1; X } X /* N mth YYYY HH:MM ampm zone */ X else if ( ( ( sscanf( cp, "%d %[a-zA-Z] %d %d:%d %[apmAPM] %[^: ]", X &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min, str_ampm, X str_gmtoff ) == 7 && X scan_ampm( str_ampm, &ampm ) ) || X sscanf( cp, "%d %[a-zA-Z] %d %d:%d %[^: ]", X &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min, X str_gmtoff ) == 6 ) && X scan_mon( str_mon, &tm_mon ) && X scan_gmtoff( str_gmtoff, &gmtoff ) ) X { X DP( "N mth YYYY HH:MM ampm zone" ); X tm.tm_mday = tm_mday; X tm.tm_mon = tm_mon; X tm.tm_year = tm_year; X tm.tm_hour = ampm_fix( tm_hour, ampm ); X tm.tm_min = tm_min; X tm.tm_sec = 0; X got_zone = 1; X } X /* N mth YYYY HH:MM:SS ampm */ X else if ( ( ( sscanf( cp, "%d %[a-zA-Z] %d %d:%d:%d %[apmAPM]", X &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min, &tm_sec, X str_ampm ) == 7 && X scan_ampm( str_ampm, &ampm ) ) || X sscanf( cp, "%d %[a-zA-Z] %d %d:%d:%d", X &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min, X &tm_sec ) == 6 ) && X scan_mon( str_mon, &tm_mon ) ) X { X DP( "N mth YYYY HH:MM:SS ampm" ); X tm.tm_mday = tm_mday; X tm.tm_mon = tm_mon; X tm.tm_year = tm_year; X tm.tm_hour = ampm_fix( tm_hour, ampm ); X tm.tm_min = tm_min; X tm.tm_sec = tm_sec; X } X /* N mth YYYY HH:MM ampm */ X else if ( ( ( sscanf( cp, "%d %[a-zA-Z] %d %d:%d %[apmAPM]", X &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min, X str_ampm ) == 6 && X scan_ampm( str_ampm, &ampm ) ) || X sscanf( cp, "%d %[a-zA-Z] %d %d:%d", X &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min ) == 5 ) && X scan_mon( str_mon, &tm_mon ) ) X { X DP( "N mth YYYY HH:MM ampm" ); X tm.tm_mday = tm_mday; X tm.tm_mon = tm_mon; X tm.tm_year = tm_year; X tm.tm_hour = ampm_fix( tm_hour, ampm ); X tm.tm_min = tm_min; X tm.tm_sec = 0; X } X /* HH:MM:SS ampm zone N mth YYYY */ X else if ( ( ( sscanf( cp, "%d:%d:%d %[apmAPM] %[^: ] %d %[a-zA-Z] %d", X &tm_hour, &tm_min, &tm_sec, str_ampm, str_gmtoff, &tm_mday, X str_mon, &tm_year ) == 8 && X scan_ampm( str_ampm, &ampm ) ) || X sscanf( cp, "%d:%d:%d %[^: ] %d %[a-zA-Z] %d", X &tm_hour, &tm_min, &tm_sec, str_gmtoff, &tm_mday, str_mon, X &tm_year ) == 7 ) && X scan_gmtoff( str_gmtoff, &gmtoff ) && X scan_mon( str_mon, &tm_mon ) ) X { X DP( "HH:MM:SS ampm zone N mth YYYY" ); X tm.tm_hour = ampm_fix( tm_hour, ampm ); X tm.tm_min = tm_min; X tm.tm_sec = tm_sec; X tm.tm_mday = tm_mday; X tm.tm_mon = tm_mon; X tm.tm_year = tm_year; X } X /* HH:MM ampm zone N mth YYYY */ X else if ( ( ( sscanf( cp, "%d:%d %[apmAPM] %[^: ] %d %[a-zA-Z] %d", X &tm_hour, &tm_min, str_ampm, str_gmtoff, &tm_mday, str_mon, X &tm_year ) == 7 && X scan_ampm( str_ampm, &ampm ) ) || X sscanf( cp, "%d:%d %[^: ] %d %[a-zA-Z] %d", X &tm_hour, &tm_min, str_gmtoff, &tm_mday, str_mon, X &tm_year ) == 6 ) && X scan_gmtoff( str_gmtoff, &gmtoff ) && X scan_mon( str_mon, &tm_mon ) ) X { X DP( "HH:MM ampm N mth YYYY" ); X tm.tm_hour = ampm_fix( tm_hour, ampm ); X tm.tm_min = tm_min; X tm.tm_sec = 0; X tm.tm_mday = tm_mday; X tm.tm_mon = tm_mon; X tm.tm_year = tm_year; X } X /* HH:MM:SS ampm N mth YYYY */ X else if ( ( ( sscanf( cp, "%d:%d:%d %[apmAPM] %d %[a-zA-Z] %d", X &tm_hour, &tm_min, &tm_sec, str_ampm, &tm_mday, str_mon, X &tm_year ) == 7 && X scan_ampm( str_ampm, &ampm ) ) || X sscanf( cp, "%d:%d:%d %d %[a-zA-Z] %d", X &tm_hour, &tm_min, &tm_sec, &tm_mday, str_mon, X &tm_year ) == 6 ) && X scan_mon( str_mon, &tm_mon ) ) X { X DP( "HH:MM:SS ampm N mth YYYY" ); X tm.tm_hour = ampm_fix( tm_hour, ampm ); X tm.tm_min = tm_min; X tm.tm_sec = tm_sec; X tm.tm_mday = tm_mday; X tm.tm_mon = tm_mon; X tm.tm_year = tm_year; X } X /* HH:MM ampm N mth YYYY */ X else if ( ( ( sscanf( cp, "%d:%d %[apmAPM] %d %[a-zA-Z] %d", X &tm_hour, &tm_min, str_ampm, &tm_mday, str_mon, X &tm_year ) == 6 && X scan_ampm( str_ampm, &ampm ) ) || X sscanf( cp, "%d:%d %d %[a-zA-Z] %d", X &tm_hour, &tm_min, &tm_mday, str_mon, &tm_year ) == 5 ) && X scan_mon( str_mon, &tm_mon ) ) X { X DP( "HH:MM ampm N mth YYYY" ); X tm.tm_hour = ampm_fix( tm_hour, ampm ); X tm.tm_min = tm_min; X tm.tm_sec = 0; X tm.tm_mday = tm_mday; X tm.tm_mon = tm_mon; X tm.tm_year = tm_year; X } X /* wdy, N mth YYYY HH:MM:SS ampm zone */ X else if ( ( ( sscanf( cp, "%[a-zA-Z], %d %[a-zA-Z] %d %d:%d:%d %[apmAPM] %[^: ]", X str_wday, &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min, X &tm_sec, str_ampm, str_gmtoff ) == 9 && X scan_ampm( str_ampm, &ampm ) ) || X sscanf( cp, "%[a-zA-Z], %d %[a-zA-Z] %d %d:%d:%d %[^: ]", X str_wday, &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min, X &tm_sec, str_gmtoff ) == 8 ) && X scan_wday( str_wday, &tm_wday ) && X scan_mon( str_mon, &tm_mon ) && X scan_gmtoff( str_gmtoff, &gmtoff ) ) X { X DP( "wdy, N mth YYYY HH:MM:SS ampm zone" ); X tm.tm_wday = tm_wday; X tm.tm_mday = tm_mday; X tm.tm_mon = tm_mon; X tm.tm_year = tm_year; X tm.tm_hour = ampm_fix( tm_hour, ampm ); X tm.tm_min = tm_min; X tm.tm_sec = tm_sec; X got_zone = 1; X } X /* wdy, N mth YYYY HH:MM ampm zone */ X else if ( ( ( sscanf( cp, "%[a-zA-Z], %d %[a-zA-Z] %d %d:%d %[apmAPM] %[^: ]", X str_wday, &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min, X str_ampm, str_gmtoff ) == 8 && X scan_ampm( str_ampm, &ampm ) ) || X sscanf( cp, "%[a-zA-Z], %d %[a-zA-Z] %d %d:%d %[^: ]", X str_wday, &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min, X str_gmtoff ) == 7 ) && X scan_wday( str_wday, &tm_wday ) && X scan_mon( str_mon, &tm_mon ) && X scan_gmtoff( str_gmtoff, &gmtoff ) ) X { X DP( "wdy, N mth YYYY HH:MM ampm zone" ); X tm.tm_wday = tm_wday; X tm.tm_mday = tm_mday; X tm.tm_mon = tm_mon; X tm.tm_year = tm_year; X tm.tm_hour = ampm_fix( tm_hour, ampm ); X tm.tm_min = tm_min; X tm.tm_sec = 0; X got_zone = 1; X } X /* wdy, N mth YYYY HH:MM:SS ampm */ X else if ( ( ( sscanf( cp, "%[a-zA-Z], %d %[a-zA-Z] %d %d:%d:%d %[apmAPM]", X str_wday, &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min, X &tm_sec, str_ampm ) == 8 && X scan_ampm( str_ampm, &ampm ) ) || X sscanf( cp, "%[a-zA-Z], %d %[a-zA-Z] %d %d:%d:%d", X str_wday, &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min, X &tm_sec ) == 7 ) && X scan_wday( str_wday, &tm_wday ) && X scan_mon( str_mon, &tm_mon ) ) X { X DP( "wdy, N mth YYYY HH:MM:SS ampm" ); X tm.tm_wday = tm_wday; X tm.tm_mday = tm_mday; X tm.tm_mon = tm_mon; X tm.tm_year = tm_year; X tm.tm_hour = ampm_fix( tm_hour, ampm ); X tm.tm_min = tm_min; X tm.tm_sec = tm_sec; X } X /* wdy, N mth YYYY HH:MM ampm */ X else if ( ( ( sscanf( cp, "%[a-zA-Z], %d %[a-zA-Z] %d %d:%d %[apmAPM]", X str_wday, &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min, X str_ampm ) == 7 && X scan_ampm( str_ampm, &ampm ) ) || X sscanf( cp, "%[a-zA-Z], %d %[a-zA-Z] %d %d:%d", X str_wday, &tm_mday, str_mon, &tm_year, &tm_hour, X &tm_min ) == 6 ) && X scan_wday( str_wday, &tm_wday ) && X scan_mon( str_mon, &tm_mon ) ) X { X DP( "wdy, N mth YYYY HH:MM ampm" ); X tm.tm_wday = tm_wday; X tm.tm_mday = tm_mday; X tm.tm_mon = tm_mon; X tm.tm_year = tm_year; X tm.tm_hour = ampm_fix( tm_hour, ampm ); X tm.tm_min = tm_min; X tm.tm_sec = 0; X } X /* wdy mth N HH:MM:SS ampm zone YYYY */ X else if ( ( ( sscanf( cp, "%[a-zA-Z] %[a-zA-Z] %d %d:%d:%d %[apmAPM] %[^: ] %d", X str_wday, str_mon, &tm_mday, &tm_hour, &tm_min, &tm_sec, X str_ampm, str_gmtoff, &tm_year ) == 9 && X scan_ampm( str_ampm, &ampm ) ) || X sscanf( cp, "%[a-zA-Z] %[a-zA-Z] %d %d:%d:%d %[^: ] %d", X str_wday, str_mon, &tm_mday, &tm_hour, &tm_min, &tm_sec, X str_gmtoff, &tm_year ) == 8 ) && X scan_wday( str_wday, &tm_wday ) && X scan_mon( str_mon, &tm_mon ) && X scan_gmtoff( str_gmtoff, &gmtoff ) ) X { X DP( "wdy mth N HH:MM:SS ampm zone YYYY" ); X tm.tm_wday = tm_wday; X tm.tm_mon = tm_mon; X tm.tm_mday = tm_mday; X tm.tm_hour = ampm_fix( tm_hour, ampm ); X tm.tm_min = tm_min; X tm.tm_sec = tm_sec; X got_zone = 1; X tm.tm_year = tm_year; X } X /* wdy mth N HH:MM ampm zone YYYY */ X else if ( ( ( sscanf( cp, "%[a-zA-Z] %[a-zA-Z] %d %d:%d %[apmAPM] %[^: ] %d", X str_wday, str_mon, &tm_mday, &tm_hour, &tm_min, X str_ampm, str_gmtoff, &tm_year ) == 8 && X scan_ampm( str_ampm, &ampm ) ) || X sscanf( cp, "%[a-zA-Z] %[a-zA-Z] %d %d:%d %[^: ] %d", X str_wday, str_mon, &tm_mday, &tm_hour, &tm_min, X str_gmtoff, &tm_year ) == 7 ) && X scan_wday( str_wday, &tm_wday ) && X scan_mon( str_mon, &tm_mon ) && X scan_gmtoff( str_gmtoff, &gmtoff ) ) X { X DP( "wdy mth N HH:MM ampm zone YYYY" ); X tm.tm_wday = tm_wday; X tm.tm_mon = tm_mon; X tm.tm_mday = tm_mday; X tm.tm_hour = ampm_fix( tm_hour, ampm ); X tm.tm_min = tm_min; X tm.tm_sec = 0; X got_zone = 1; X tm.tm_year = tm_year; X } X /* N mth YYYY */ X else if ( sscanf( cp, "%d %[a-zA-Z] %d", X &tm_mday, str_mon, &tm_year ) == 3 && X scan_mon( str_mon, &tm_mon ) ) X { X DP( "N mth YYYY" ); X tm.tm_mday = tm_mday; X tm.tm_mon = tm_mon; X tm.tm_year = tm_year; X tm.tm_hour = 0; X tm.tm_min = 0; X tm.tm_sec = 0; X } X /* HH:MM:SS ampm */ X else if ( ( sscanf( cp, "%d:%d:%d %[apmAPM]", X &tm_hour, &tm_min, &tm_sec, str_ampm ) == 4 && X scan_ampm( str_ampm, &ampm ) ) || X sscanf( cp, "%d:%d:%d", &tm_hour, &tm_min, &tm_sec ) == 3 ) X { X DP( "HH:MM:SS ampm" ); X tm.tm_hour = ampm_fix( tm_hour, ampm ); X tm.tm_min = tm_min; X tm.tm_sec = tm_sec; X } X /* HH:MM ampm */ X else if ( ( sscanf( cp, "%d:%d %[apmAPM]", &tm_hour, &tm_min, X str_ampm ) == 3 && X scan_ampm( str_ampm, &ampm ) ) || X sscanf( cp, "%d:%d", &tm_hour, &tm_min ) == 2 ) X { X DP( "HH:MM" ); X tm.tm_hour = ampm_fix( tm_hour, ampm ); X tm.tm_min = tm_min; X tm.tm_sec = 0; X } X else X return (time_t) -1; X X if ( tm.tm_year > 1900 ) X tm.tm_year -= 1900; X else if ( tm.tm_year < 70 ) X tm.tm_year += 100; X X t = tm_to_time( &tm ); X t -= gmtoff; X if ( tm.tm_isdst && ! got_zone ) X t -= 60*60; X X return t; X } SHAR_EOF if test 19522 -ne "`wc -c < 'date_parse.c'`" then echo shar: error transmitting "'date_parse.c'" '(should have been 19522 characters)' fi fi # end of overwriting check echo shar: extracting "'date_sort.1'" '(784 characters)' if test -f 'date_sort.1' then echo shar: will not over-write existing file "'date_sort.1'" else sed 's/^X//' << \SHAR_EOF > 'date_sort.1' X.TH date_sort 1 "11 February 1995" X.SH NAME Xdate_sort - sort input by date X.SH SYNOPSIS X.B date_sort X.RI [ file X.IR ... ] X.SH DESCRIPTION X.PP XReads in lines from the input files or stdin. XThe lines should consist of or begin with dates. XSorts the lines and writes them out. X.SH "SEE ALSO" Xdate_order(1), deltime(1), xmit_time(1), date_parse(3) X.SH AUTHOR XCopyright (C) 1995 by Jef Poskanzer. X.\" Permission to use, copy, modify, and distribute this software and its X.\" documentation for any purpose and without fee is hereby granted, provided X.\" that the above copyright notice appear in all copies and that both that X.\" copyright notice and this permission notice appear in supporting X.\" documentation. This software is provided "as is" without express or X.\" implied warranty. SHAR_EOF if test 784 -ne "`wc -c < 'date_sort.1'`" then echo shar: error transmitting "'date_sort.1'" '(should have been 784 characters)' fi fi # end of overwriting check echo shar: extracting "'date_sort.c'" '(3085 characters)' if test -f 'date_sort.c' then echo shar: will not over-write existing file "'date_sort.c'" else sed 's/^X//' << \SHAR_EOF > 'date_sort.c' X/* date_sort - sort input by date X** X** Copyright (C) 1995 by Jef Poskanzer <jef(a)netcom.com>. X** X** Permission to use, copy, modify, and distribute this software and its X** documentation for any purpose and without fee is hereby granted, provided X** that the above copyright notice appear in all copies and that both that X** copyright notice and this permission notice appear in supporting X** documentation. This software is provided "as is" without express or X** implied warranty. X*/ X X#include <stdio.h> X#include <string.h> X#include <malloc.h> X#include <time.h> X Xextern time_t date_parse(); X Xstatic void usage(); Xstatic void read_file(); Xstatic int line_compare(); Xstatic char* my_malloc(); Xstatic char* my_realloc(); Xstatic void out_of_mem(); X Xstatic char* argv0; X Xstruct line X { X char* text; X time_t date; X }; X Xstatic int maxlines, nlines; Xstatic struct line* lines; X Xvoid Xmain( argc, argv ) X int argc; X char* argv[]; X { X int argn; X FILE* f; X int i; X X argv0 = argv[0]; X argn = 1; X if ( argn < argc && argv[argn][0] == '-' && argv[argn][1] != '\0' ) X usage(); X X maxlines = 500; /* arbitrary initial value */ X lines = (struct line*) my_malloc( maxlines * sizeof(struct line) ); X nlines = 0; X X if ( argn == argc ) X read_file( stdin ); X else X while ( argn < argc ) X { X if ( strcmp( argv[argn], "-" ) == 0 ) X read_file( stdin ); X else X { X f = fopen( argv[argn], "r" ); X if ( f == (FILE*) 0 ) X { X perror( argv[argn] ); X exit( 1 ); X } X read_file( f ); X (void) fclose( f ); X } X ++argn; X } X X qsort( lines, nlines, sizeof(struct line), line_compare ); X X for ( i = 0; i < nlines; ++i ) X fputs( lines[i].text, stdout ); X X exit( 0 ); X } X Xstatic void Xusage() X { X (void) fprintf( stderr, "usage: %s [file ...]\n", argv0 ); X exit( 1 ); X } X Xstatic void Xread_file( f ) X FILE* f; X { X char aline[10000]; X X /* Read until end of file. */ X while ( fgets( aline, sizeof(aline), f ) != (char*) 0 ) X { X /* Make sure there's enough room in the lines array. */ X if ( nlines >= maxlines ) X { X maxlines *= 2; X lines = (struct line*) my_realloc( X (char*) lines, maxlines * sizeof(struct line) ); X } X lines[nlines].text = (char*) my_malloc( strlen( aline ) + 1 ); X (void) strcpy( lines[nlines].text, aline ); X lines[nlines].date = date_parse( aline ); X if ( lines[nlines].date == (time_t) -1 ) X (void) fprintf( stderr, "%s: unparsable date - %s", argv0, aline ); X ++nlines; X } X } X Xstatic int Xline_compare( l1, l2 ) X struct line* l1; X struct line* l2; X { X return l1->date - l2->date; X } X Xstatic char* Xmy_malloc( size ) X unsigned size; X { X char* r; X X r = malloc( size ); X if ( r == (char*) 0 ) X out_of_mem(); X return r; X } X Xstatic char* Xmy_realloc( p, size ) X char* p; X unsigned size; X { X char* r; X X r = realloc( p, size ); X if ( r == (char*) 0 ) X out_of_mem(); X return r; X } X Xstatic void Xout_of_mem() X { X (void) fprintf( stderr, "%s: out of memory\n", argv0 ); X exit( 1 ); X } SHAR_EOF if test 3085 -ne "`wc -c < 'date_sort.c'`" then echo shar: error transmitting "'date_sort.c'" '(should have been 3085 characters)' fi fi # end of overwriting check echo shar: extracting "'deltime.1'" '(978 characters)' if test -f 'deltime.1' then echo shar: will not over-write existing file "'deltime.1'" else sed 's/^X//' << \SHAR_EOF > 'deltime.1' X.TH deltime 1 "11 February 1995" X.SH NAME Xdeltime - show difference between two dates X.SH SYNOPSIS X.B deltime X.I date1 X.RI [ date2 ] X.SH DESCRIPTION X.PP XComputes the elapsed time between now and a Xspecified date/time, or between two specified date/times. XBe careful to put the dates in quotes if they contain spaces. XThe output format is dddd hh:mm:ss. X.PP XTimes earlier than 1970 cannot Xbe handled, because that's as far back as the internal Unix time format goes. X.SH "SEE ALSO" Xdate_sort(1), date_order(1), xmit_time(1), date_parse(3) X.SH AUTHOR XCopyright (C) 1995 by Jef Poskanzer. X.\" Permission to use, copy, modify, and distribute this software and its X.\" documentation for any purpose and without fee is hereby granted, provided X.\" that the above copyright notice appear in all copies and that both that X.\" copyright notice and this permission notice appear in supporting X.\" documentation. This software is provided "as is" without express or X.\" implied warranty. SHAR_EOF if test 978 -ne "`wc -c < 'deltime.1'`" then echo shar: error transmitting "'deltime.1'" '(should have been 978 characters)' fi fi # end of overwriting check echo shar: extracting "'deltime.c'" '(1932 characters)' if test -f 'deltime.c' then echo shar: will not over-write existing file "'deltime.c'" else sed 's/^X//' << \SHAR_EOF > 'deltime.c' X/* deltime - show difference between two dates X** X** Copyright (C) 1995 by Jef Poskanzer <jef(a)netcom.com>. X** X** Permission to use, copy, modify, and distribute this software and its X** documentation for any purpose and without fee is hereby granted, provided X** that the above copyright notice appear in all copies and that both that X** copyright notice and this permission notice appear in supporting X** documentation. This software is provided "as is" without express or X** implied warranty. X*/ X X#include <stdio.h> X#include <time.h> X Xextern time_t date_parse(); X Xstatic void usage(); Xstatic void unparsable(); X Xstatic char* argv0; X X#define SECSPERMINUTE 60 X#define SECSPERHOUR (60 * SECSPERMINUTE) X#define SECSPERDAY (24 * SECSPERHOUR) X Xvoid Xmain( argc, argv ) X int argc; X char* argv[]; X { X time_t t1, t2; X long delta; X int days, hours, minutes, secs; X X argv0 = argv[0]; X X if ( argc == 2 ) X { X t1 = date_parse( argv[1] ); X if ( t1 == (time_t) -1 ) X unparsable( argv[1] ); X t2 = time( (time_t*) 0 ); X } X else if ( argc == 3 ) X { X t1 = date_parse( argv[1] ); X if ( t1 == (time_t) -1 ) X unparsable( argv[1] ); X t2 = date_parse( argv[2] ); X if ( t2 == (time_t) -1 ) X unparsable( argv[2] ); X } X else X usage(); X X delta = t2 - t1; X if ( delta < 0 ) X { X (void) printf( "-" ); X delta = -delta; X } X X days = delta / SECSPERDAY; X delta = delta - days * SECSPERDAY; X hours = delta / SECSPERHOUR; X delta = delta - hours * SECSPERHOUR; X minutes = delta / SECSPERMINUTE; X delta = delta - minutes * SECSPERMINUTE; X secs = delta; X X printf( "%d %2d:%02d:%02d\n", days, hours, minutes, secs ); X X exit( 0 ); X } X Xstatic void Xusage() X { X (void) fprintf( stderr, "usage: %s date1 [date2]\n", argv0 ); X exit( 1 ); X } X Xstatic void Xunparsable( str ) X char* str; X { X (void) fprintf( stderr, "%s: unparsable date - %s\n", argv0, str ); X exit( 1 ); X } SHAR_EOF if test 1932 -ne "`wc -c < 'deltime.c'`" then echo shar: error transmitting "'deltime.c'" '(should have been 1932 characters)' fi fi # end of overwriting check echo shar: extracting "'dptest.c'" '(286 characters)' if test -f 'dptest.c' then echo shar: will not over-write existing file "'dptest.c'" else sed 's/^X//' << \SHAR_EOF > 'dptest.c' X#include <sys/types.h> X#include <stdio.h> X#include <time.h> X Xextern time_t date_parse(); X Xmain( argc, argv ) X int argc; X char* argv; X { X char line[5000]; X X while ( gets( line ) != (char*) 0 ) X (void) printf( "%s - %d\n", line, date_parse( line ) ); X X exit( 0 ); X } SHAR_EOF if test 286 -ne "`wc -c < 'dptest.c'`" then echo shar: error transmitting "'dptest.c'" '(should have been 286 characters)' fi fi # end of overwriting check echo shar: extracting "'test_input'" '(4336 characters)' if test -f 'test_input' then echo shar: will not over-write existing file "'test_input'" else sed 's/^X//' << \SHAR_EOF > 'test_input' X6 Feb 1995 09:00:00 AM PST X6 Feb 1995 09:00:00 PST X6 Feb 1995 09:00 AM PST X6 Feb 1995 09:00 PST X6 Feb 1995 09:00:00 AM X6 Feb 1995 09:00:00 X6 Feb 1995 09:00 AM X6 Feb 1995 09:00 X09:00:00 AM PST 6 Feb 1995 X09:00:00 PST 6 Feb 1995 X09:00 AM PST 6 Feb 1995 X09:00 PST 6 Feb 1995 X09:00:00 AM 6 Feb 1995 X09:00:00 6 Feb 1995 X09:00 AM 6 Feb 1995 X09:00 6 Feb 1995 XMon, 6 Feb 1995 09:00:00 AM PST XMon, 6 Feb 1995 09:00:00 PST XMon, 6 Feb 1995 09:00 AM PST XMon, 6 Feb 1995 09:00 PST XMon, 6 Feb 1995 09:00:00 AM XMon, 6 Feb 1995 09:00:00 XMon, 6 Feb 1995 09:00 AM XMon, 6 Feb 1995 09:00 XMon Feb 6 09:00:00 AM PST 1995 XMon Feb 6 09:00:00 PST 1995 XMon Feb 6 09:00 AM PST 1995 XMon Feb 6 09:00 PST 1995 XMon, 6 Feb 1995 09:00:00 AM PST XMon, 6 Feb 1995 09:00:00 PM PST XSun, 6 Feb 1995 09:00:00 PST XSunday, 6 Feb 1995 09:00:00 PST XMon, 6 Feb 1995 09:00:00 PST XMonday, 6 Feb 1995 09:00:00 PST XTue, 6 Feb 1995 09:00:00 PST XTuesday, 6 Feb 1995 09:00:00 PST XWed, 6 Feb 1995 09:00:00 PST XWednesday, 6 Feb 1995 09:00:00 PST XThu, 6 Feb 1995 09:00:00 PST XThursday, 6 Feb 1995 09:00:00 PST XFri, 6 Feb 1995 09:00:00 PST XFriday, 6 Feb 1995 09:00:00 PST XSat, 6 Feb 1995 09:00:00 PST XSaturday, 6 Feb 1995 09:00:00 PST XMon, 6 Jan 1995 09:00:00 PST XMon, 6 January 1995 09:00:00 PST XMon, 6 Feb 1995 09:00:00 PST XMon, 6 February 1995 09:00:00 PST XMon, 6 Mar 1995 09:00:00 PST XMon, 6 March 1995 09:00:00 PST XMon, 6 Apr 1995 09:00:00 PST XMon, 6 April 1995 09:00:00 PST XMon, 6 May 1995 09:00:00 PST XMon, 6 Jun 1995 09:00:00 PST XMon, 6 June 1995 09:00:00 PST XMon, 6 Jul 1995 09:00:00 PST XMon, 6 July 1995 09:00:00 PST XMon, 6 Aug 1995 09:00:00 PST XMon, 6 August 1995 09:00:00 PST XMon, 6 Sep 1995 09:00:00 PST XMon, 6 September 1995 09:00:00 PST XMon, 6 Oct 1995 09:00:00 PST XMon, 6 October 1995 09:00:00 PST XMon, 6 Nov 1995 09:00:00 PST XMon, 6 November 1995 09:00:00 PST XMon, 6 Dec 1995 09:00:00 PST XMon, 6 December 1995 09:00:00 PST XMon, 6 Feb 1995 09:00:00 GMT XMon, 6 Feb 1995 09:00:00 UTC XMon, 6 Feb 1995 09:00:00 UT XMon, 6 Feb 1995 09:00:00 0000 XMon, 6 Feb 1995 09:00:00 +0000 XMon, 6 Feb 1995 09:00:00 -0000 XMon, 6 Feb 1995 09:00:00 0100 XMon, 6 Feb 1995 09:00:00 +0100 XMon, 6 Feb 1995 09:00:00 -0100 XMon, 6 Feb 1995 09:00:00 0200 XMon, 6 Feb 1995 09:00:00 +0200 XMon, 6 Feb 1995 09:00:00 -0200 XMon, 6 Feb 1995 09:00:00 0300 XMon, 6 Feb 1995 09:00:00 +0300 XMon, 6 Feb 1995 09:00:00 -0300 XMon, 6 Feb 1995 09:00:00 0400 XMon, 6 Feb 1995 09:00:00 +0400 XMon, 6 Feb 1995 09:00:00 -0400 XMon, 6 Feb 1995 09:00:00 0500 XMon, 6 Feb 1995 09:00:00 +0500 XMon, 6 Feb 1995 09:00:00 -0500 XMon, 6 Feb 1995 09:00:00 0600 XMon, 6 Feb 1995 09:00:00 +0600 XMon, 6 Feb 1995 09:00:00 -0600 XMon, 6 Feb 1995 09:00:00 0700 XMon, 6 Feb 1995 09:00:00 +0700 XMon, 6 Feb 1995 09:00:00 -0700 XMon, 6 Feb 1995 09:00:00 0800 XMon, 6 Feb 1995 09:00:00 +0800 XMon, 6 Feb 1995 09:00:00 -0800 XMon, 6 Feb 1995 09:00:00 0900 XMon, 6 Feb 1995 09:00:00 +0900 XMon, 6 Feb 1995 09:00:00 -0900 XMon, 6 Feb 1995 09:00:00 1000 XMon, 6 Feb 1995 09:00:00 +1000 XMon, 6 Feb 1995 09:00:00 -1000 XMon, 6 Feb 1995 09:00:00 1100 XMon, 6 Feb 1995 09:00:00 +1100 XMon, 6 Feb 1995 09:00:00 -1100 XMon, 6 Feb 1995 09:00:00 1200 XMon, 6 Feb 1995 09:00:00 +1200 XMon, 6 Feb 1995 09:00:00 -1200 XMon, 6 Feb 1995 09:00:00 JST XMon, 6 Feb 1995 09:00:00 JDT XMon, 6 Feb 1995 09:00:00 BST XMon, 6 Feb 1995 09:00:00 NST XMon, 6 Feb 1995 09:00:00 AST XMon, 6 Feb 1995 09:00:00 EDT XMon, 6 Feb 1995 09:00:00 EST XMon, 6 Feb 1995 09:00:00 EDT XMon, 6 Feb 1995 09:00:00 CST XMon, 6 Feb 1995 09:00:00 CDT XMon, 6 Feb 1995 09:00:00 MST XMon, 6 Feb 1995 09:00:00 MDT XMon, 6 Feb 1995 09:00:00 PST XMon, 6 Feb 1995 09:00:00 PDT XMon, 6 Feb 1995 09:00:00 YST XMon, 6 Feb 1995 09:00:00 YDT XMon, 6 Feb 1995 09:00:00 HST XMon, 6 Feb 1995 09:00:00 HDT XMon, 6 Feb 1995 09:00:00 A XMon, 6 Feb 1995 09:00:00 B XMon, 6 Feb 1995 09:00:00 C XMon, 6 Feb 1995 09:00:00 D XMon, 6 Feb 1995 09:00:00 E XMon, 6 Feb 1995 09:00:00 F XMon, 6 Feb 1995 09:00:00 G XMon, 6 Feb 1995 09:00:00 H XMon, 6 Feb 1995 09:00:00 I XMon, 6 Feb 1995 09:00:00 K XMon, 6 Feb 1995 09:00:00 L XMon, 6 Feb 1995 09:00:00 M XMon, 6 Feb 1995 09:00:00 N XMon, 6 Feb 1995 09:00:00 O XMon, 6 Feb 1995 09:00:00 P XMon, 6 Feb 1995 09:00:00 Q XMon, 6 Feb 1995 09:00:00 R XMon, 6 Feb 1995 09:00:00 S XMon, 6 Feb 1995 09:00:00 T XMon, 6 Feb 1995 09:00:00 U XMon, 6 Feb 1995 09:00:00 V XMon, 6 Feb 1995 09:00:00 W XMon, 6 Feb 1995 09:00:00 X XMon, 6 Feb 1995 09:00:00 Y SHAR_EOF if test 4336 -ne "`wc -c < 'test_input'`" then echo shar: error transmitting "'test_input'" '(should have been 4336 characters)' fi fi # end of overwriting check echo shar: extracting "'test_output'" '(6148 characters)' if test -f 'test_output' then echo shar: will not over-write existing file "'test_output'" else sed 's/^X//' << \SHAR_EOF > 'test_output' X6 Feb 1995 09:00:00 AM PST - 792090000 X6 Feb 1995 09:00:00 PST - 792090000 X6 Feb 1995 09:00 AM PST - 792090000 X6 Feb 1995 09:00 PST - 792090000 X6 Feb 1995 09:00:00 AM - 792090000 X6 Feb 1995 09:00:00 - 792090000 X6 Feb 1995 09:00 AM - 792090000 X6 Feb 1995 09:00 - 792090000 X09:00:00 AM PST 6 Feb 1995 - 792090000 X09:00:00 PST 6 Feb 1995 - 792090000 X09:00 AM PST 6 Feb 1995 - 792090000 X09:00 PST 6 Feb 1995 - 792090000 X09:00:00 AM 6 Feb 1995 - 792090000 X09:00:00 6 Feb 1995 - 792090000 X09:00 AM 6 Feb 1995 - 792090000 X09:00 6 Feb 1995 - 792090000 XMon, 6 Feb 1995 09:00:00 AM PST - 792090000 XMon, 6 Feb 1995 09:00:00 PST - 792090000 XMon, 6 Feb 1995 09:00 AM PST - 792090000 XMon, 6 Feb 1995 09:00 PST - 792090000 XMon, 6 Feb 1995 09:00:00 AM - 792090000 XMon, 6 Feb 1995 09:00:00 - 792090000 XMon, 6 Feb 1995 09:00 AM - 792090000 XMon, 6 Feb 1995 09:00 - 792090000 XMon Feb 6 09:00:00 AM PST 1995 - 792090000 XMon Feb 6 09:00:00 PST 1995 - 792090000 XMon Feb 6 09:00 AM PST 1995 - 792090000 XMon Feb 6 09:00 PST 1995 - 792090000 XMon, 6 Feb 1995 09:00:00 AM PST - 792090000 XMon, 6 Feb 1995 09:00:00 PM PST - 792133200 XSun, 6 Feb 1995 09:00:00 PST - 792090000 XSunday, 6 Feb 1995 09:00:00 PST - 792090000 XMon, 6 Feb 1995 09:00:00 PST - 792090000 XMonday, 6 Feb 1995 09:00:00 PST - 792090000 XTue, 6 Feb 1995 09:00:00 PST - 792090000 XTuesday, 6 Feb 1995 09:00:00 PST - 792090000 XWed, 6 Feb 1995 09:00:00 PST - 792090000 XWednesday, 6 Feb 1995 09:00:00 PST - 792090000 XThu, 6 Feb 1995 09:00:00 PST - 792090000 XThursday, 6 Feb 1995 09:00:00 PST - 792090000 XFri, 6 Feb 1995 09:00:00 PST - 792090000 XFriday, 6 Feb 1995 09:00:00 PST - 792090000 XSat, 6 Feb 1995 09:00:00 PST - 792090000 XSaturday, 6 Feb 1995 09:00:00 PST - 792090000 XMon, 6 Jan 1995 09:00:00 PST - 789411600 XMon, 6 January 1995 09:00:00 PST - 789411600 XMon, 6 Feb 1995 09:00:00 PST - 792090000 XMon, 6 February 1995 09:00:00 PST - 792090000 XMon, 6 Mar 1995 09:00:00 PST - 794509200 XMon, 6 March 1995 09:00:00 PST - 794509200 XMon, 6 Apr 1995 09:00:00 PST - 797187600 XMon, 6 April 1995 09:00:00 PST - 797187600 XMon, 6 May 1995 09:00:00 PST - 799779600 XMon, 6 Jun 1995 09:00:00 PST - 802458000 XMon, 6 June 1995 09:00:00 PST - 802458000 XMon, 6 Jul 1995 09:00:00 PST - 805050000 XMon, 6 July 1995 09:00:00 PST - 805050000 XMon, 6 Aug 1995 09:00:00 PST - 807728400 XMon, 6 August 1995 09:00:00 PST - 807728400 XMon, 6 Sep 1995 09:00:00 PST - 810406800 XMon, 6 September 1995 09:00:00 PST - 810406800 XMon, 6 Oct 1995 09:00:00 PST - 812998800 XMon, 6 October 1995 09:00:00 PST - 812998800 XMon, 6 Nov 1995 09:00:00 PST - 815677200 XMon, 6 November 1995 09:00:00 PST - 815677200 XMon, 6 Dec 1995 09:00:00 PST - 818269200 XMon, 6 December 1995 09:00:00 PST - 818269200 XMon, 6 Feb 1995 09:00:00 GMT - 792061200 XMon, 6 Feb 1995 09:00:00 UTC - 792061200 XMon, 6 Feb 1995 09:00:00 UT - 792061200 XMon, 6 Feb 1995 09:00:00 0000 - 792061200 XMon, 6 Feb 1995 09:00:00 +0000 - 792061200 XMon, 6 Feb 1995 09:00:00 -0000 - 792061200 XMon, 6 Feb 1995 09:00:00 0100 - 792057600 XMon, 6 Feb 1995 09:00:00 +0100 - 792057600 XMon, 6 Feb 1995 09:00:00 -0100 - 792064800 XMon, 6 Feb 1995 09:00:00 0200 - 792054000 XMon, 6 Feb 1995 09:00:00 +0200 - 792054000 XMon, 6 Feb 1995 09:00:00 -0200 - 792068400 XMon, 6 Feb 1995 09:00:00 0300 - 792050400 XMon, 6 Feb 1995 09:00:00 +0300 - 792050400 XMon, 6 Feb 1995 09:00:00 -0300 - 792072000 XMon, 6 Feb 1995 09:00:00 0400 - 792046800 XMon, 6 Feb 1995 09:00:00 +0400 - 792046800 XMon, 6 Feb 1995 09:00:00 -0400 - 792075600 XMon, 6 Feb 1995 09:00:00 0500 - 792043200 XMon, 6 Feb 1995 09:00:00 +0500 - 792043200 XMon, 6 Feb 1995 09:00:00 -0500 - 792079200 XMon, 6 Feb 1995 09:00:00 0600 - 792039600 XMon, 6 Feb 1995 09:00:00 +0600 - 792039600 XMon, 6 Feb 1995 09:00:00 -0600 - 792082800 XMon, 6 Feb 1995 09:00:00 0700 - 792036000 XMon, 6 Feb 1995 09:00:00 +0700 - 792036000 XMon, 6 Feb 1995 09:00:00 -0700 - 792086400 XMon, 6 Feb 1995 09:00:00 0800 - 792032400 XMon, 6 Feb 1995 09:00:00 +0800 - 792032400 XMon, 6 Feb 1995 09:00:00 -0800 - 792090000 XMon, 6 Feb 1995 09:00:00 0900 - 792028800 XMon, 6 Feb 1995 09:00:00 +0900 - 792028800 XMon, 6 Feb 1995 09:00:00 -0900 - 792093600 XMon, 6 Feb 1995 09:00:00 1000 - 792025200 XMon, 6 Feb 1995 09:00:00 +1000 - 792025200 XMon, 6 Feb 1995 09:00:00 -1000 - 792097200 XMon, 6 Feb 1995 09:00:00 1100 - 792021600 XMon, 6 Feb 1995 09:00:00 +1100 - 792021600 XMon, 6 Feb 1995 09:00:00 -1100 - 792100800 XMon, 6 Feb 1995 09:00:00 1200 - 792018000 XMon, 6 Feb 1995 09:00:00 +1200 - 792018000 XMon, 6 Feb 1995 09:00:00 -1200 - 792104400 XMon, 6 Feb 1995 09:00:00 JST - 792054000 XMon, 6 Feb 1995 09:00:00 JDT - 792050400 XMon, 6 Feb 1995 09:00:00 BST - 792064800 XMon, 6 Feb 1995 09:00:00 NST - 792073800 XMon, 6 Feb 1995 09:00:00 AST - 792075600 XMon, 6 Feb 1995 09:00:00 EDT - 792072000 XMon, 6 Feb 1995 09:00:00 EST - 792079200 XMon, 6 Feb 1995 09:00:00 EDT - 792072000 XMon, 6 Feb 1995 09:00:00 CST - 792082800 XMon, 6 Feb 1995 09:00:00 CDT - 792079200 XMon, 6 Feb 1995 09:00:00 MST - 792086400 XMon, 6 Feb 1995 09:00:00 MDT - 792082800 XMon, 6 Feb 1995 09:00:00 PST - 792090000 XMon, 6 Feb 1995 09:00:00 PDT - 792086400 XMon, 6 Feb 1995 09:00:00 YST - 792093600 XMon, 6 Feb 1995 09:00:00 YDT - 792090000 XMon, 6 Feb 1995 09:00:00 HST - 792097200 XMon, 6 Feb 1995 09:00:00 HDT - 792093600 XMon, 6 Feb 1995 09:00:00 A - 792064800 XMon, 6 Feb 1995 09:00:00 B - 792068400 XMon, 6 Feb 1995 09:00:00 C - 792072000 XMon, 6 Feb 1995 09:00:00 D - 792075600 XMon, 6 Feb 1995 09:00:00 E - 792079200 XMon, 6 Feb 1995 09:00:00 F - 792082800 XMon, 6 Feb 1995 09:00:00 G - 792086400 XMon, 6 Feb 1995 09:00:00 H - 792090000 XMon, 6 Feb 1995 09:00:00 I - 792093600 XMon, 6 Feb 1995 09:00:00 K - 792097200 XMon, 6 Feb 1995 09:00:00 L - 792100800 XMon, 6 Feb 1995 09:00:00 M - 792104400 XMon, 6 Feb 1995 09:00:00 N - 792064800 XMon, 6 Feb 1995 09:00:00 O - 792068400 XMon, 6 Feb 1995 09:00:00 P - 792072000 XMon, 6 Feb 1995 09:00:00 Q - 792075600 XMon, 6 Feb 1995 09:00:00 R - 792079200 XMon, 6 Feb 1995 09:00:00 S - 792082800 XMon, 6 Feb 1995 09:00:00 T - 792086400 XMon, 6 Feb 1995 09:00:00 U - 792090000 XMon, 6 Feb 1995 09:00:00 V - 792093600 XMon, 6 Feb 1995 09:00:00 W - 792097200 XMon, 6 Feb 1995 09:00:00 X - 792100800 XMon, 6 Feb 1995 09:00:00 Y - 792104400 SHAR_EOF if test 6148 -ne "`wc -c < 'test_output'`" then echo shar: error transmitting "'test_output'" '(should have been 6148 characters)' fi fi # end of overwriting check echo shar: extracting "'xmit_time.1'" '(989 characters)' if test -f 'xmit_time.1' then echo shar: will not over-write existing file "'xmit_time.1'" else sed 's/^X//' << \SHAR_EOF > 'xmit_time.1' X.TH xmit_time 1 "11 February 1995" X.SH NAME Xxmit_time - figure transmission time of netnews articles X.SH SYNOPSIS X.B xmit_time X.IR file ... X.SH DESCRIPTION X.PP XGiven a set of netnews article filenames as arguments, looks in each file for Xa netnews-format Date: line. XAlso looks at the last-modified time of the file. XThe difference between the two is how long it took that article to Xtravel from the poster's site to your site, and that number (in seconds) Xis written to stdout. X.SH "SEE ALSO" Xdate_sort(1), date_order(1), deltime(1), date_parse(3) X.SH AUTHOR XCopyright (C) 1995 by Jef Poskanzer. X.\" Permission to use, copy, modify, and distribute this software and its X.\" documentation for any purpose and without fee is hereby granted, provided X.\" that the above copyright notice appear in all copies and that both that X.\" copyright notice and this permission notice appear in supporting X.\" documentation. This software is provided "as is" without express or X.\" implied warranty. SHAR_EOF if test 989 -ne "`wc -c < 'xmit_time.1'`" then echo shar: error transmitting "'xmit_time.1'" '(should have been 989 characters)' fi fi # end of overwriting check echo shar: extracting "'xmit_time.c'" '(1975 characters)' if test -f 'xmit_time.c' then echo shar: will not over-write existing file "'xmit_time.c'" else sed 's/^X//' << \SHAR_EOF > 'xmit_time.c' X/* xmit_time - figure out transmission time of netnews articles X** X** Copyright (C) 1995 by Jef Poskanzer <jef(a)netcom.com>. X** X** Permission to use, copy, modify, and distribute this software and its X** documentation for any purpose and without fee is hereby granted, provided X** that the above copyright notice appear in all copies and that both that X** copyright notice and this permission notice appear in supporting X** documentation. This software is provided "as is" without express or X** implied warranty. X*/ X X#include <stdio.h> X#include <string.h> X#include <sys/stat.h> X#include <time.h> X Xextern time_t date_parse(); X Xstatic void usage(); Xstatic void do_file(); X Xstatic char* argv0; X Xvoid Xmain( argc, argv ) X int argc; X char* argv[]; X { X int argn; X X argv0 = argv[0]; X argn = 1; X if ( argn < argc && argv[argn][0] == '-' && argv[argn][1] != '\0' ) X usage(); X X while ( argn < argc ) X { X do_file( argv[argn] ); X ++argn; X } X X exit( 0 ); X } X Xstatic void Xusage() X { X (void) fprintf( stderr, "usage: %s file ...\n", argv0 ); X exit( 1 ); X } X Xstatic void Xdo_file( name ) X char* name; X { X struct stat sb; X time_t posted, arrived; X FILE* f; X char line[30000]; X X f = fopen( name, "r" ); X if ( f == (FILE*) 0 ) X { X perror( name ); X return; X } X X if ( fstat( fileno( f ), &sb ) < 0 ) X { X perror( name ); X (void) fclose( f ); X return; X } X arrived = sb.st_mtime; X X for (;;) X { X if ( fgets( line, sizeof(line), f ) == (char*) 0 ) X break; X if ( line[0] == '\n' ) X break; X if ( strncmp( line, "Date:", 5 ) == 0 ) X { X (void) fclose( f ); X posted = date_parse( &line[5] ); X if ( posted == (time_t) -1 ) X (void) fprintf( X stderr, "%s: unparsable date in %s - %s", X argv0, name, &line[5] ); X else X (void) printf( "%d\n", arrived - posted ); X return; X } X } X X (void) fprintf( stderr, "%s: no Date: line found in %s\n", argv0, name ); X (void) fclose( f ); X } X X SHAR_EOF if test 1975 -ne "`wc -c < 'xmit_time.c'`" then echo shar: error transmitting "'xmit_time.c'" '(should have been 1975 characters)' fi fi # end of overwriting check # End of shell archive exit 0

1 0

betatzcodeb.tar.gz
by ado Jan. 14, 1995

Jan. 14, 1995

betatzcodeb.tar.gz is now on elsie.nci.nih.gov; the difference is a change to tzfile.h, the need for which was spotted by Earl Chew <earl(a)hpato.aus.hp.com>. A diff is attached. --ado SCCS/s.tzfile.h: 7.5 vs. 7.6 *** 7.5/tzfile.h Fri Jan 13 19:14:26 1995 --- 7.6/tzfile.h Fri Jan 13 19:14:27 1995 *************** *** 16,22 **** #ifndef lint #ifndef NOID ! static char tzfilehid[] = "@(#)tzfile.h 7.5"; #endif /* !defined NOID */ #endif /* !defined lint */ --- 16,22 ---- #ifndef lint #ifndef NOID ! static char tzfilehid[] = "@(#)tzfile.h 7.6"; #endif /* !defined NOID */ #endif /* !defined lint */ *************** *** 95,101 **** #define TZ_MAX_TYPES 256 /* Limited by what (unsigned char)'s can hold */ #endif /* !defined NOSOLAR */ #ifdef NOSOLAR ! #define TZ_MAX_TYPES 10 /* Maximum number of local time types */ #endif /* !defined NOSOLAR */ #endif /* !defined TZ_MAX_TYPES */ --- 95,105 ---- #define TZ_MAX_TYPES 256 /* Limited by what (unsigned char)'s can hold */ #endif /* !defined NOSOLAR */ #ifdef NOSOLAR ! /* ! ** Must be at least 14 for Europe/Riga as of Jan 12 1995, ! ** as noted by Earl Chew <earl(a)hpato.aus.hp.com>. ! */ ! #define TZ_MAX_TYPES 20 /* Maximum number of local time types */ #endif /* !defined NOSOLAR */ #endif /* !defined TZ_MAX_TYPES */

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Timezone lat/lon boundaries?
by hagberg＠bigdog.engr.arizona.edu Jan. 10, 1995

Jan. 10, 1995

Do you know of a source, commercial or otherwise, or lat/lon boundaries of timezones? I have an application that would be considerably improved if, given the lat/lon of a size, the timezone and DST calculations could be made. If it matters, I currently only need this for the US, but it would be nice to include some world timezones as well. Thanks for your help. Please email replies to dhagberg(a)gds.com. -=- D. J. Hagberg

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betatzcode.tar.gz and betatzdata.tar.gz
by ado Jan. 6, 1995

Jan. 6, 1995

The files betatzcode.tar.gz and betatzdata.tar.gz are now available for anonymous ftp from elsie.nci.nih.gov. The data files use new features to allow common handling of EC countries; the code files have been delinted, along with elimination of no-longer-needed (I hope!) support for systems and compilers without some POSIX stuff. (Sufficient support for off-the-shelf SunOS 4.1.1 remains.) Any and all feedback most welcome; in particular let me know if I've overstepped or understepped on code pruning. I trust that "tzcode95a.tar.gz" and "tzdata95a.tar.gz" can be put in place some time before the end of the month, while "classictzcode.tar.gz" and "classictzdata.tar.gz" will remain in place. Many thanks to Paul Eggert for a passle of delinting and data corrections! --ado

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GMT/BST
by Margaret Ann Dolgenos Dec. 13, 1994

Dec. 13, 1994

I seem to have some conflicting information, can anyone confirm for me -- is Great Britain doing the GMT->BST shift on the last Sunday in March, 1995, and the BST->GMT shift on the last Sunday in October, 1995? I have some data that says the second shift will happen on Oct 22, 1995, and some which says it is Oct 29, 1995. >From 1996 on, I take it the dates will always be last Sunday in March and October, to match other EEC timezones. Thanks, --peggyd(a)sco.com

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Re: Can honoring of daylight savings time be d
by Doug Gwyn Dec. 13, 1994

Dec. 13, 1994

I think you (Guy) have fairly accurately covered the issue. I agree that the POSIX rationale is confused, and wonder why they did not seek guidance from the C standards committee since we did thoroughly research and analyze this issue before settling on the specification in the C standard (which intentionally contains one or more small ambiguities to accommodate systems that cannot get time conversion precisely right for whatever reason). The intention is for struct tm to contain the "user-interface" time components and for all computations to be performed using corresponding time_t data, which in the general C standard is a magic cookie but which is supposed to be a uniformly ticking clock value in POSIX (with the number of ticks per second a system macro). Standard C provides a difftime() function simply because some systems may not have as clean an internal representation of time_t as UNIX does. The oscillators is supposed to tick uniformly (with very tiny tweaks to track an accepted time standard, but no "leaps" of any sort), and time_t should be an affine function of the number of accrued clock ticks. If POSIX has managed to require that the internal clock jump back and forth then it has a bug that should be fixed. "Leap seconds", like Daylight Saving Time, is an artifice due to people having an imperfect handle on the underlying nicely flowing physical phenomenon of time. That's the model behind the C standard and should be the one behind POSIX if it is to be a good specification.

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tzcode94h.tar.gz and tzdata94h.tar.gz
by ado Dec. 10, 1994

Dec. 10, 1994

The files tzcode94h.tar.gz and tzdata94h.tar.gz are now available for anonymous ftp from the "pub" directory on elsie.nci.nih.gov (165.112.73.1). The files: * incorporate the changes to "zdump" and "date" to make changes to the "TZ" environment variable permanent; * incorporate the table changes that Paul Eggert sent in earlier this week; * include (and document) support for universal time specifications in data files--but do not (yet) include use of this feature in the data files. Think of this as "TZ Classic"--the software has been set up not to break if universal time shows up in its input, and the data has been left as is so as not to break existing implementations. What I'd like to do is get any other important functional changes rolled in to the code by the end of the year, then keep whatever version we've arrived at by then available on elsie. With that insurance in hand, the hope would be that in early 1995 the Europe data could be simplified by using the universal time support, and that (long deferred) code cleanup could be accomplished (perhaps with some removal of support for non-POSIX C compilers). Any insights folks have on these notions are welcome. Note that the Europe cleanup will require some care, since there are some places that use the "W-Eur", "M-Eur", and "E-Eur" rules but do not switch at 1:00 universal time. To get a sense of the issues involved, save the existing "europe" file as "europe-old", copy it to "europe-new", edit it to use the universal time support, unshar the attached file, then use the command sh regress europe-old europe-new and ponder the results. Also attached are the changes to "zic.c" (and "zic.8") for universal time support. --ado #! /bin/sh : To unbundle, sh this file echo file 'regress' >&2 cat >'regress' <<'End of regress' #! /bin/sh T1=,reg-$$a T2=,reg-$$b trap 'rm -f -r $T1 $T2; exit' 0 1 2 3 15 case $# in 2) ;; *) echo "$O: usage is $O filename filename" 1>&2 exit 1 ;; esac zic -d $T1 $1 zic -d $T2 $2 diff -r $T1 $T2 End of regress exit =============================================================================== SCCS/s.zic.c: 7.27 vs. 7.28 *** 7.27/zic.c Sat Dec 10 13:09:20 1994 --- 7.28/zic.c Sat Dec 10 13:09:21 1994 *************** *** 1,6 **** #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)zic.c 7.27"; #endif /* !defined NOID */ #endif /* !defined lint */ --- 1,6 ---- #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)zic.c 7.28"; #endif /* !defined NOID */ #endif /* !defined lint */ *************** *** 25,30 **** --- 25,32 ---- long r_tod; /* time from midnight */ int r_todisstd; /* above is standard time if TRUE */ /* or wall clock time if FALSE */ + int r_todisuniv; /* above is universal time if TRUE */ + /* or local time if FALSE */ long r_stdoff; /* offset from standard time */ const char * r_abbrvar; /* variable part of abbreviation */ *************** *** 1113,1129 **** } rp->r_month = lp->l_value; rp->r_todisstd = FALSE; dp = ecpyalloc(timep); if (*dp != '\0') { ep = dp + strlen(dp) - 1; switch (lowerit(*ep)) { ! case 's': rp->r_todisstd = TRUE; *ep = '\0'; break; ! case 'w': rp->r_todisstd = FALSE; *ep = '\0'; break; } } --- 1115,1140 ---- } rp->r_month = lp->l_value; rp->r_todisstd = FALSE; + rp->r_todisuniv = FALSE; dp = ecpyalloc(timep); if (*dp != '\0') { ep = dp + strlen(dp) - 1; switch (lowerit(*ep)) { ! case 's': /* Standard */ rp->r_todisstd = TRUE; + rp->r_todisuniv = FALSE; *ep = '\0'; break; ! case 'w': /* Wall */ rp->r_todisstd = FALSE; + rp->r_todisuniv = FALSE; *ep = '\0'; + case 'g': /* Greenwich */ + case 'u': /* Universal */ + case 'z': /* Zulu */ + rp->r_todisstd = TRUE; + rp->r_todisuniv = TRUE; + *ep = '\0'; break; } } *************** *** 1421,1428 **** ** assuming the current gmtoff and ** stdoff values. */ ! untiltime = tadd(zp->z_untiltime, ! -gmtoff); if (!zp->z_untilrule.r_todisstd) untiltime = tadd(untiltime, -stdoff); --- 1432,1441 ---- ** assuming the current gmtoff and ** stdoff values. */ ! untiltime = zp->z_untiltime; ! if (!zp->z_untilrule.r_todisuniv) ! untiltime = tadd(untiltime, ! -gmtoff); if (!zp->z_untilrule.r_todisstd) untiltime = tadd(untiltime, -stdoff); *************** *** 1441,1447 **** continue; eats(zp->z_filename, zp->z_linenum, rp->r_filename, rp->r_linenum); ! offset = gmtoff; if (!rp->r_todisstd) offset = oadd(offset, stdoff); jtime = rp->r_temp; --- 1454,1460 ---- continue; eats(zp->z_filename, zp->z_linenum, rp->r_filename, rp->r_linenum); ! offset = rp->r_todisuniv ? 0 : gmtoff; if (!rp->r_todisstd) offset = oadd(offset, stdoff); jtime = rp->r_temp; =============================================================================== SCCS/s.zic.8: 7.8 vs. 7.10 *** 7.8/zic.8 Sat Dec 10 13:09:37 1994 --- 7.10/zic.8 Sat Dec 10 13:09:38 1994 *************** *** 209,222 **** .B w if the given time is local .q "wall clock" ! time or .B s if the given time is local .q standard ! time; in the absence of ! .B w or ! .BR s , wall clock time is assumed. .TP .B SAVE --- 209,226 ---- .B w if the given time is local .q "wall clock" ! time, .B s if the given time is local .q standard ! time, or ! .B u ! (or ! .B g or ! .BR z ) ! if the given time is universal time; ! in the absence of an indicator, wall clock time is assumed. .TP .B SAVE *************** *** 399,402 **** /usr/local/etc/zoneinfo standard directory used for created files .SH "SEE ALSO" newctime(3), tzfile(5), zdump(8) ! .\" @(#)zic.8 7.8 --- 403,406 ---- /usr/local/etc/zoneinfo standard directory used for created files .SH "SEE ALSO" newctime(3), tzfile(5), zdump(8) ! .\" @(#)zic.8 7.10

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Re: Can honoring of daylight savings time be d
by Bradley White Dec. 8, 1994

Dec. 8, 1994

Doug Gwyn <gwyn(a)arl.mil> writes: > UNIX "system time" is *unaffected* by Daylight > Saving Time; it always counts clock ticks since a fixed epoch, which > progresses unformly regardless of legislative actions. The mapping to/from > human-being time is performed by library functions that can be instructed > as to the exact rules to be applied Do you believe this concept should be extended to leap seconds? The `ado' time package proves such an extension is feasible. (The only slight problem I've seen in practice is with programs that assume every minute has 60 seconds.) However, POSIX seems to legislate the possibility away, and the NTP implementors seem to favour a complex system that jumps the clock. Bradley

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Re: proposed changes to TZ tables
by Peter Ilieve Dec. 6, 1994

Dec. 6, 1994

> From: Paul Eggert <eggert(a)twinsun.com> > > For the 1996 EC / EU daylight savings changes, we need at least four > rulesets, one each for Western, Middle, and Eastern Europe (since the > change is UTC, not local time), and one for GB-Eire (since they will > continue to use `GMT' and `BST' instead of `WET' and `WET DST'). Or implement my suggestion for a means of specifying a change at a UTC time. The GB-Eire point about using GMT/BST is still valid, I can't see us changing. > Perhaps the simplest thing is to use the existing ruleset names, > using a comment to explain that as of 1996 the [WME]-Eur and GB-Eire > rulesets use the EC rules. Remember that there isn't anything magic about the EC rules in this seventh Directive. They are just the same sort of EC rules as in the first to sixth Directives. The only thing that changed was the agreement of a common end date. The UK/Eire end date in previous Directives was just as much an EC rule as any other. In particular, all EC Directives have used a changeover time of 01:00 UTC, right back to 1981. (At least, I am pretty sure they did, I don't have the text for the 1st--5th, but the UK changed from its traditional 02:00 GMT to 01:00 in 1981.) > The biggest near-term problem in this area will be countries that > currently differ from the EC rules only in that they switch at > midnight UTC instead of the new standard 01:00. It will be a hassle > to find exactly when they change their rules. We found out with > Finland only because someone sent us a bug report. Countries in this > category currently include Albania, Bulgaria, Estonia, Greece, Latvia, > Lithuania, Moldova, Poland, Romania, Turkey, and Ukraine. Greece is > the only country in this list that is required to change because it's > in the EC, but most likely the rest will follow at some point. Greece should have changed in 1981, it joined in the year the first Directive took effect. I have no idea whether it actually did I'm afraid. Peter Ilieve peter(a)memex.co.uk

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patches to zdump.c and date.c for Posix-compliant tzset behavior
by eggert＠twinsun.com Dec. 6, 1994

Dec. 6, 1994

date.c and zdump.c currently use the trick of temporarily setting `environ' to modify "TZ", then calling tzset(), then restoring `environ', then calling `localtime' to get the effect of the temporarily modified "TZ". But this trick doesn't work if `ctime', `localtime', `mktime', and `strftime' inspect "TZ" every time they are invoked, as required by Posix 1003.1b-1993 section 8.1.1 page 192 lines 54-56. The following patch fixes date.c and zdump.c to set `environ' permanently; this should work regardless of whether tzset has the Posix-required behavior or the old tz behavior. (I've already sent a patch to fix the old tz behavior -- I can resend this to whoever's interested.) =================================================================== RCS file: RCS/date.c,v retrieving revision 1994.6.1.2 retrieving revision 1994.6.1.3 diff -c -r1994.6.1.2 -r1994.6.1.3 *** date.c 1994/05/09 09:47:28 1994.6.1.2 --- date.c 1994/12/06 17:13:55 1994.6.1.3 *************** *** 299,312 **** static void dogmt() { ! register char ** saveenv; ! static char TZ_GMT0[] = "TZ=GMT0"; ! static char * fakeenv[] = { TZ_GMT0, NULL }; ! saveenv = environ; ! environ = fakeenv; ! tzset(); ! environ = saveenv; } #ifdef OLD_TIME --- 299,320 ---- static void dogmt() { ! static char **fakeenv; ! if (!fakeenv) { ! register int i, j; ! for (i = 0; environ[i]; i++) ! continue; ! if (!(fakeenv = (char **) malloc((i + 2) * sizeof(char *)))) { ! (void) perror("Memory exhausted"); ! errensure(); ! (void) exit(retval); ! } ! fakeenv[0] = "TZ=GMT0"; ! for (i = 0, j = 1; (fakeenv[j] = environ[i]) != 0; i++) ! j += strncmp(fakeenv[j], "TZ=", 3) != 0; ! environ = fakeenv; ! } } #ifdef OLD_TIME =================================================================== RCS file: RCS/zdump.c,v retrieving revision 1994.6.1.1 retrieving revision 1994.6.1.2 diff -c -r1994.6.1.1 -r1994.6.1.2 *** zdump.c 1994/05/05 16:24:49 1994.6.1.1 --- zdump.c 1994/12/06 17:13:55 1994.6.1.2 *************** *** 41,47 **** /* localtime.c */ extern char * tzname[]; - extern void tzset P((void)); #ifndef MAX_STRING_LENGTH #define MAX_STRING_LENGTH 1024 --- 41,46 ---- *************** *** 116,121 **** --- 115,121 ---- register char * cutoff; register int cutyear; register long cuttime; + char ** fakeenv; time_t now; time_t t, newt; time_t hibit; *************** *** 154,178 **** longest = strlen(argv[i]); for (hibit = 1; (hibit << 1) != 0; hibit <<= 1) continue; for (i = optind; i < argc; ++i) { - register char ** saveenv; static char buf[MAX_STRING_LENGTH]; - char * fakeenv[2]; ! if (strlen(argv[i]) + 4 > sizeof buf) { ! (void) fflush(stdout); ! (void) fprintf(stderr, "%s: argument too long -- %s\n", ! progname, argv[i]); ! (void) exit(EXIT_FAILURE); ! } ! (void) strcpy(buf, "TZ="); ! (void) strcat(buf, argv[i]); ! fakeenv[0] = buf; ! fakeenv[1] = NULL; ! saveenv = environ; ! environ = fakeenv; ! (void) tzset(); ! environ = saveenv; show(argv[i], now, FALSE); if (!vflag) continue; --- 154,176 ---- longest = strlen(argv[i]); for (hibit = 1; (hibit << 1) != 0; hibit <<= 1) continue; + + for (i = 0; environ[i]; i++) + continue; + if (!(fakeenv = (char **) malloc((i + 2) * sizeof(char *))) + || !(fakeenv[0] = malloc(longest + 4))) { + (void) perror(progname); + (void) exit(EXIT_FAILURE); + } + (void) strcpy(fakeenv[0], "TZ="); + for (i = 0, c = 1; (fakeenv[c] = environ[i]) != 0; i++) + c += strncmp(fakeenv[c], "TZ=", 3) != 0; + environ = fakeenv; + for (i = optind; i < argc; ++i) { static char buf[MAX_STRING_LENGTH]; ! (void) strcpy(fakeenv[0] + 3, argv[i]); show(argv[i], now, FALSE); if (!vflag) continue;

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