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Diffstat (limited to 'usr.sbin/zic/zdump.c')
-rw-r--r--usr.sbin/zic/zdump.c675
1 files changed, 0 insertions, 675 deletions
diff --git a/usr.sbin/zic/zdump.c b/usr.sbin/zic/zdump.c
deleted file mode 100644
index 0f61125c7d67..000000000000
--- a/usr.sbin/zic/zdump.c
+++ /dev/null
@@ -1,675 +0,0 @@
-/*
-** This file is in the public domain, so clarified as of
-** 2009-05-17 by Arthur David Olson.
-*/
-
-#ifndef lint
-static const char rcsid[] =
- "$FreeBSD$";
-static char elsieid[] = "@(#)zdump.c 8.10";
-#endif /* not lint */
-
-/*
-** This code has been made independent of the rest of the time
-** conversion package to increase confidence in the verification it provides.
-** You can use this code to help in verifying other implementations.
-*/
-
-#include <err.h>
-#include <stdio.h> /* for stdout, stderr */
-#include <stdlib.h> /* for exit, malloc, atoi */
-#include <string.h> /* for strcpy */
-#include <sys/types.h> /* for time_t */
-#include <time.h> /* for struct tm */
-#include <unistd.h>
-#include <float.h> /* for FLT_MAX and DBL_MAX */
-#include <ctype.h> /* for isalpha et al. */
-#ifndef isascii
-#define isascii(x) 1
-#endif /* !defined isascii */
-
-#ifndef ZDUMP_LO_YEAR
-#define ZDUMP_LO_YEAR (-500)
-#endif /* !defined ZDUMP_LO_YEAR */
-
-#ifndef ZDUMP_HI_YEAR
-#define ZDUMP_HI_YEAR 2500
-#endif /* !defined ZDUMP_HI_YEAR */
-
-#ifndef MAX_STRING_LENGTH
-#define MAX_STRING_LENGTH 1024
-#endif /* !defined MAX_STRING_LENGTH */
-
-#ifndef TRUE
-#define TRUE 1
-#endif /* !defined TRUE */
-
-#ifndef FALSE
-#define FALSE 0
-#endif /* !defined FALSE */
-
-#ifndef EXIT_SUCCESS
-#define EXIT_SUCCESS 0
-#endif /* !defined EXIT_SUCCESS */
-
-#ifndef EXIT_FAILURE
-#define EXIT_FAILURE 1
-#endif /* !defined EXIT_FAILURE */
-
-#ifndef SECSPERMIN
-#define SECSPERMIN 60
-#endif /* !defined SECSPERMIN */
-
-#ifndef MINSPERHOUR
-#define MINSPERHOUR 60
-#endif /* !defined MINSPERHOUR */
-
-#ifndef SECSPERHOUR
-#define SECSPERHOUR (SECSPERMIN * MINSPERHOUR)
-#endif /* !defined SECSPERHOUR */
-
-#ifndef HOURSPERDAY
-#define HOURSPERDAY 24
-#endif /* !defined HOURSPERDAY */
-
-#ifndef EPOCH_YEAR
-#define EPOCH_YEAR 1970
-#endif /* !defined EPOCH_YEAR */
-
-#ifndef TM_YEAR_BASE
-#define TM_YEAR_BASE 1900
-#endif /* !defined TM_YEAR_BASE */
-
-#ifndef DAYSPERNYEAR
-#define DAYSPERNYEAR 365
-#endif /* !defined DAYSPERNYEAR */
-
-#ifndef isleap
-#define isleap(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0))
-#endif /* !defined isleap */
-
-#ifndef isleap_sum
-/*
-** See tzfile.h for details on isleap_sum.
-*/
-#define isleap_sum(a, b) isleap((a) % 400 + (b) % 400)
-#endif /* !defined isleap_sum */
-
-#define SECSPERDAY ((long) SECSPERHOUR * HOURSPERDAY)
-#define SECSPERNYEAR (SECSPERDAY * DAYSPERNYEAR)
-#define SECSPERLYEAR (SECSPERNYEAR + SECSPERDAY)
-
-#ifndef HAVE_GETTEXT
-#define HAVE_GETTEXT 0
-#endif
-#if HAVE_GETTEXT
-#include "locale.h" /* for setlocale */
-#include "libintl.h"
-#endif /* HAVE_GETTEXT */
-
-#ifndef GNUC_or_lint
-#ifdef lint
-#define GNUC_or_lint
-#else /* !defined lint */
-#ifdef __GNUC__
-#define GNUC_or_lint
-#endif /* defined __GNUC__ */
-#endif /* !defined lint */
-#endif /* !defined GNUC_or_lint */
-
-#ifndef INITIALIZE
-#ifdef GNUC_or_lint
-#define INITIALIZE(x) ((x) = 0)
-#else /* !defined GNUC_or_lint */
-#define INITIALIZE(x)
-#endif /* !defined GNUC_or_lint */
-#endif /* !defined INITIALIZE */
-
-/*
-** For the benefit of GNU folk...
-** `_(MSGID)' uses the current locale's message library string for MSGID.
-** The default is to use gettext if available, and use MSGID otherwise.
-*/
-
-#ifndef _
-#if HAVE_GETTEXT
-#define _(msgid) gettext(msgid)
-#else /* !(HAVE_GETTEXT) */
-#define _(msgid) msgid
-#endif /* !(HAVE_GETTEXT) */
-#endif /* !defined _ */
-
-#ifndef TZ_DOMAIN
-#define TZ_DOMAIN "tz"
-#endif /* !defined TZ_DOMAIN */
-
-extern char ** environ;
-extern char * tzname[2];
-
-static time_t absolute_min_time;
-static time_t absolute_max_time;
-static size_t longest;
-static char * progname;
-static int warned;
-
-static void usage(FILE *stream, int status);
-static char * abbr(struct tm * tmp);
-static void abbrok(const char * abbrp, const char * zone);
-static long delta(struct tm * newp, struct tm * oldp);
-static void dumptime(const struct tm * tmp);
-static time_t hunt(char * name, time_t lot, time_t hit);
-static void setabsolutes(void);
-static void show(char * zone, time_t t, int v);
-static const char * tformat(void);
-static time_t yeartot(long y);
-
-#ifndef TYPECHECK
-#define my_localtime localtime
-#else /* !defined TYPECHECK */
-static struct tm *
-my_localtime(tp)
-time_t * tp;
-{
- register struct tm * tmp;
-
- tmp = localtime(tp);
- if (tp != NULL && tmp != NULL) {
- struct tm tm;
- register time_t t;
-
- tm = *tmp;
- t = mktime(&tm);
- if (t - *tp >= 1 || *tp - t >= 1) {
- (void) fflush(stdout);
- (void) fprintf(stderr, "\n%s: ", progname);
- (void) fprintf(stderr, tformat(), *tp);
- (void) fprintf(stderr, " ->");
- (void) fprintf(stderr, " year=%d", tmp->tm_year);
- (void) fprintf(stderr, " mon=%d", tmp->tm_mon);
- (void) fprintf(stderr, " mday=%d", tmp->tm_mday);
- (void) fprintf(stderr, " hour=%d", tmp->tm_hour);
- (void) fprintf(stderr, " min=%d", tmp->tm_min);
- (void) fprintf(stderr, " sec=%d", tmp->tm_sec);
- (void) fprintf(stderr, " isdst=%d", tmp->tm_isdst);
- (void) fprintf(stderr, " -> ");
- (void) fprintf(stderr, tformat(), t);
- (void) fprintf(stderr, "\n");
- }
- }
- return tmp;
-}
-#endif /* !defined TYPECHECK */
-
-static void
-abbrok(abbrp, zone)
-const char * const abbrp;
-const char * const zone;
-{
- register const char * cp;
- register char * wp;
-
- if (warned)
- return;
- cp = abbrp;
- wp = NULL;
- while (isascii((unsigned char) *cp) && isalpha((unsigned char) *cp))
- ++cp;
- if (cp - abbrp == 0)
- wp = _("lacks alphabetic at start");
- else if (cp - abbrp < 3)
- wp = _("has fewer than 3 alphabetics");
- else if (cp - abbrp > 6)
- wp = _("has more than 6 alphabetics");
- if (wp == NULL && (*cp == '+' || *cp == '-')) {
- ++cp;
- if (isascii((unsigned char) *cp) &&
- isdigit((unsigned char) *cp))
- if (*cp++ == '1' && *cp >= '0' && *cp <= '4')
- ++cp;
- if (*cp != '\0')
- wp = _("differs from POSIX standard");
- }
- if (wp == NULL)
- return;
- (void) fflush(stdout);
- (void) fprintf(stderr,
- _("%s: warning: zone \"%s\" abbreviation \"%s\" %s\n"),
- progname, zone, abbrp, wp);
- warned = TRUE;
-}
-
-int
-main(argc, argv)
-int argc;
-char * argv[];
-{
- register int i;
- register int c;
- register int vflag;
- register char * cutarg;
- register long cutloyear = ZDUMP_LO_YEAR;
- register long cuthiyear = ZDUMP_HI_YEAR;
- register time_t cutlotime;
- register time_t cuthitime;
- register char ** fakeenv;
- time_t now;
- time_t t;
- time_t newt;
- struct tm tm;
- struct tm newtm;
- register struct tm * tmp;
- register struct tm * newtmp;
-
- INITIALIZE(cutlotime);
- INITIALIZE(cuthitime);
-#if HAVE_GETTEXT
- (void) setlocale(LC_MESSAGES, "");
-#ifdef TZ_DOMAINDIR
- (void) bindtextdomain(TZ_DOMAIN, TZ_DOMAINDIR);
-#endif /* TEXTDOMAINDIR */
- (void) textdomain(TZ_DOMAIN);
-#endif /* HAVE_GETTEXT */
- for (i = 1; i < argc; ++i)
- if (strcmp(argv[i], "--version") == 0) {
- errx(EXIT_SUCCESS, "%s", elsieid);
- } else if (strcmp(argv[i], "--help") == 0) {
- usage(stdout, EXIT_SUCCESS);
- }
- vflag = 0;
- cutarg = NULL;
- while ((c = getopt(argc, argv, "c:v")) == 'c' || c == 'v')
- if (c == 'v')
- vflag = 1;
- else cutarg = optarg;
- if ((c != -1) ||
- (optind == argc - 1 && strcmp(argv[optind], "=") == 0)) {
- usage(stderr, EXIT_FAILURE);
- }
- if (vflag) {
- if (cutarg != NULL) {
- long lo;
- long hi;
- char dummy;
-
- if (sscanf(cutarg, "%ld%c", &hi, &dummy) == 1) {
- cuthiyear = hi;
- } else if (sscanf(cutarg, "%ld,%ld%c",
- &lo, &hi, &dummy) == 2) {
- cutloyear = lo;
- cuthiyear = hi;
- } else {
-(void) fprintf(stderr, _("%s: wild -c argument %s\n"),
- progname, cutarg);
- exit(EXIT_FAILURE);
- }
- }
- setabsolutes();
- cutlotime = yeartot(cutloyear);
- cuthitime = yeartot(cuthiyear);
- }
- (void) time(&now);
- longest = 0;
- for (i = optind; i < argc; ++i)
- if (strlen(argv[i]) > longest)
- longest = strlen(argv[i]);
- {
- register int from;
- register int to;
-
- for (i = 0; environ[i] != NULL; ++i)
- continue;
- fakeenv = (char **) malloc((size_t) ((i + 2) *
- sizeof *fakeenv));
- if (fakeenv == NULL ||
- (fakeenv[0] = (char *) malloc((size_t) (longest +
- 4))) == NULL)
- errx(EXIT_FAILURE,
- _("malloc() failed"));
- to = 0;
- (void) strcpy(fakeenv[to++], "TZ=");
- for (from = 0; environ[from] != NULL; ++from)
- if (strncmp(environ[from], "TZ=", 3) != 0)
- fakeenv[to++] = environ[from];
- fakeenv[to] = NULL;
- environ = fakeenv;
- }
- for (i = optind; i < argc; ++i) {
- static char buf[MAX_STRING_LENGTH];
-
- (void) strcpy(&fakeenv[0][3], argv[i]);
- if (!vflag) {
- show(argv[i], now, FALSE);
- continue;
- }
- warned = FALSE;
- t = absolute_min_time;
- show(argv[i], t, TRUE);
- t += SECSPERHOUR * HOURSPERDAY;
- show(argv[i], t, TRUE);
- if (t < cutlotime)
- t = cutlotime;
- tmp = my_localtime(&t);
- if (tmp != NULL) {
- tm = *tmp;
- (void) strncpy(buf, abbr(&tm), (sizeof buf) - 1);
- }
- for ( ; ; ) {
- if (t >= cuthitime || t >= cuthitime - SECSPERHOUR * 12)
- break;
- newt = t + SECSPERHOUR * 12;
- newtmp = localtime(&newt);
- if (newtmp != NULL)
- newtm = *newtmp;
- if ((tmp == NULL || newtmp == NULL) ? (tmp != newtmp) :
- (delta(&newtm, &tm) != (newt - t) ||
- newtm.tm_isdst != tm.tm_isdst ||
- strcmp(abbr(&newtm), buf) != 0)) {
- newt = hunt(argv[i], t, newt);
- newtmp = localtime(&newt);
- if (newtmp != NULL) {
- newtm = *newtmp;
- (void) strncpy(buf,
- abbr(&newtm),
- (sizeof buf) - 1);
- }
- }
- t = newt;
- tm = newtm;
- tmp = newtmp;
- }
- t = absolute_max_time;
- t -= SECSPERHOUR * HOURSPERDAY;
- show(argv[i], t, TRUE);
- t += SECSPERHOUR * HOURSPERDAY;
- show(argv[i], t, TRUE);
- }
- if (fflush(stdout) || ferror(stdout))
- errx(EXIT_FAILURE, _("error writing standard output"));
- exit(EXIT_SUCCESS);
- /* If exit fails to exit... */
- return(EXIT_FAILURE);
-}
-
-static void
-setabsolutes(void)
-{
- if (0.5 == (time_t) 0.5) {
- /*
- ** time_t is floating.
- */
- if (sizeof (time_t) == sizeof (float)) {
- absolute_min_time = (time_t) -FLT_MAX;
- absolute_max_time = (time_t) FLT_MAX;
- } else if (sizeof (time_t) == sizeof (double)) {
- absolute_min_time = (time_t) -DBL_MAX;
- absolute_max_time = (time_t) DBL_MAX;
- } else {
- (void) fprintf(stderr,
-_("%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) {
- /*
- ** time_t is signed. Assume overflow wraps around.
- */
- time_t t = 0;
- time_t t1 = 1;
-
- while (t < t1) {
- t = t1;
- t1 = 2 * t1 + 1;
- }
-
- absolute_max_time = t;
- t = -t;
- absolute_min_time = t - 1;
- if (t < absolute_min_time)
- absolute_min_time = t;
- } else {
- /*
- ** time_t is unsigned.
- */
- absolute_min_time = 0;
- absolute_max_time = absolute_min_time - 1;
- }
-}
-
-static time_t
-yeartot(y)
-const long y;
-{
- register long myy;
- register long seconds;
- register time_t t;
-
- myy = EPOCH_YEAR;
- t = 0;
- while (myy != y) {
- if (myy < y) {
- seconds = isleap(myy) ? SECSPERLYEAR : SECSPERNYEAR;
- ++myy;
- if (t > absolute_max_time - seconds) {
- t = absolute_max_time;
- break;
- }
- t += seconds;
- } else {
- --myy;
- seconds = isleap(myy) ? SECSPERLYEAR : SECSPERNYEAR;
- if (t < absolute_min_time + seconds) {
- t = absolute_min_time;
- break;
- }
- t -= seconds;
- }
- }
- return t;
-}
-
-static void
-usage(FILE *stream, int status)
-{
- fprintf(stream,
-_("usage: %s [--version] [-v] [--help] [-c [loyear,]hiyear] zonename ...\n\
-\n\
-Report bugs to tz@elsie.nci.nih.gov.\n"), progname);
- exit(status);
-}
-
-static time_t
-hunt(char *name, time_t lot, time_t hit)
-{
- time_t t;
- long diff;
- struct tm lotm;
- register struct tm * lotmp;
- struct tm tm;
- register struct tm * tmp;
- char loab[MAX_STRING_LENGTH];
-
- lotmp = my_localtime(&lot);
- if (lotmp != NULL) {
- lotm = *lotmp;
- (void) strncpy(loab, abbr(&lotm), (sizeof loab) - 1);
- }
- for ( ; ; ) {
- diff = (long) (hit - lot);
- if (diff < 2)
- break;
- t = lot;
- t += diff / 2;
- if (t <= lot)
- ++t;
- else if (t >= hit)
- --t;
- tmp = my_localtime(&t);
- if (tmp != NULL)
- tm = *tmp;
- if ((lotmp == NULL || tmp == NULL) ? (lotmp == tmp) :
- (delta(&tm, &lotm) == (t - lot) &&
- tm.tm_isdst == lotm.tm_isdst &&
- strcmp(abbr(&tm), loab) == 0)) {
- lot = t;
- lotm = tm;
- lotmp = tmp;
- } else hit = t;
- }
- show(name, lot, TRUE);
- show(name, hit, TRUE);
- return hit;
-}
-
-/*
-** Thanks to Paul Eggert for logic used in delta.
-*/
-
-static long
-delta(newp, oldp)
-struct tm * newp;
-struct tm * oldp;
-{
- register long result;
- register int tmy;
-
- if (newp->tm_year < oldp->tm_year)
- return -delta(oldp, newp);
- result = 0;
- for (tmy = oldp->tm_year; tmy < newp->tm_year; ++tmy)
- result += DAYSPERNYEAR + isleap_sum(tmy, TM_YEAR_BASE);
- result += newp->tm_yday - oldp->tm_yday;
- result *= HOURSPERDAY;
- result += newp->tm_hour - oldp->tm_hour;
- result *= MINSPERHOUR;
- result += newp->tm_min - oldp->tm_min;
- result *= SECSPERMIN;
- result += newp->tm_sec - oldp->tm_sec;
- return result;
-}
-
-static void
-show(char *zone, time_t t, int v)
-{
- register struct tm * tmp;
-
- (void) printf("%-*s ", (int) longest, zone);
- if (v) {
- tmp = gmtime(&t);
- if (tmp == NULL) {
- (void) printf(tformat(), t);
- } else {
- dumptime(tmp);
- (void) printf(" UTC");
- }
- (void) printf(" = ");
- }
- tmp = my_localtime(&t);
- dumptime(tmp);
- if (tmp != NULL) {
- if (*abbr(tmp) != '\0')
- (void) printf(" %s", abbr(tmp));
- if (v) {
- (void) printf(" isdst=%d", tmp->tm_isdst);
-#ifdef TM_GMTOFF
- (void) printf(" gmtoff=%ld", tmp->TM_GMTOFF);
-#endif /* defined TM_GMTOFF */
- }
- }
- (void) printf("\n");
- if (tmp != NULL && *abbr(tmp) != '\0')
- abbrok(abbr(tmp), zone);
-}
-
-static char *
-abbr(tmp)
-struct tm * tmp;
-{
- register char * result;
- static char nada;
-
- if (tmp->tm_isdst != 0 && tmp->tm_isdst != 1)
- return &nada;
- result = tzname[tmp->tm_isdst];
- return (result == NULL) ? &nada : result;
-}
-
-/*
-** The code below can fail on certain theoretical systems;
-** it works on all known real-world systems as of 2004-12-30.
-*/
-
-static const char *
-tformat(void)
-{
- if (0.5 == (time_t) 0.5) { /* floating */
- if (sizeof (time_t) > sizeof (double))
- return "%Lg";
- return "%g";
- }
- if (0 > (time_t) -1) { /* signed */
- if (sizeof (time_t) > sizeof (long))
- return "%lld";
- if (sizeof (time_t) > sizeof (int))
- return "%ld";
- return "%d";
- }
- if (sizeof (time_t) > sizeof (unsigned long))
- return "%llu";
- if (sizeof (time_t) > sizeof (unsigned int))
- return "%lu";
- return "%u";
-}
-
-static void
-dumptime(timeptr)
-register const struct tm * timeptr;
-{
- static const char wday_name[][3] = {
- "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
- };
- static const char mon_name[][3] = {
- "Jan", "Feb", "Mar", "Apr", "May", "Jun",
- "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
- };
- register const char * wn;
- register const char * mn;
- register int lead;
- register int trail;
-
- if (timeptr == NULL) {
- (void) printf("NULL");
- return;
- }
- /*
- ** The packaged versions of localtime and gmtime never put out-of-range
- ** values in tm_wday or tm_mon, but since this code might be compiled
- ** with other (perhaps experimental) versions, paranoia is in order.
- */
- if (timeptr->tm_wday < 0 || timeptr->tm_wday >=
- (int) (sizeof wday_name / sizeof wday_name[0]))
- wn = "???";
- else wn = wday_name[timeptr->tm_wday];
- if (timeptr->tm_mon < 0 || timeptr->tm_mon >=
- (int) (sizeof mon_name / sizeof mon_name[0]))
- mn = "???";
- else mn = mon_name[timeptr->tm_mon];
- (void) printf("%.3s %.3s%3d %.2d:%.2d:%.2d ",
- wn, mn,
- timeptr->tm_mday, timeptr->tm_hour,
- timeptr->tm_min, timeptr->tm_sec);
-#define DIVISOR 10
- trail = timeptr->tm_year % DIVISOR + TM_YEAR_BASE % DIVISOR;
- lead = timeptr->tm_year / DIVISOR + TM_YEAR_BASE / DIVISOR +
- trail / DIVISOR;
- trail %= DIVISOR;
- if (trail < 0 && lead > 0) {
- trail += DIVISOR;
- --lead;
- } else if (lead < 0 && trail > 0) {
- trail -= DIVISOR;
- ++lead;
- }
- if (lead == 0)
- (void) printf("%d", trail);
- else (void) printf("%d%d", lead, ((trail < 0) ? -trail : trail));
-}
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