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-rw-r--r--cmd/zdump/zdump.c664
1 files changed, 664 insertions, 0 deletions
diff --git a/cmd/zdump/zdump.c b/cmd/zdump/zdump.c
new file mode 100644
index 000000000..45be5589d
--- /dev/null
+++ b/cmd/zdump/zdump.c
@@ -0,0 +1,664 @@
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+/*
+ * zdump 7.24
+ * Taken from elsie.nci.nih.gov to replace the existing Solaris zdump,
+ * which was based on an earlier version of the elsie code.
+ *
+ * For zdump 7.24, the following changes were made to the elsie code:
+ * locale/textdomain/messages to match existing Solaris style.
+ * Solaris verbose mode is documented to display the current time first.
+ * cstyle cleaned code.
+ * removed old locale/textdomain code.
+ */
+
+static char elsieid[] = "@(#)zdump.c 7.74";
+
+/*
+ * 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 "stdio.h" /* for stdout, stderr, perror */
+#include "string.h" /* for strcpy */
+#include "sys/types.h" /* for time_t */
+#include "time.h" /* for struct tm */
+#include "stdlib.h" /* for exit, malloc, atoi */
+#include "locale.h" /* for setlocale, textdomain */
+#include "libintl.h"
+#include <ctype.h>
+#include "tzfile.h" /* for defines */
+#include <limits.h>
+
+#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 isleap_sum
+/*
+ * See tzfile.h for details on isleap_sum.
+ */
+#define isleap_sum(a, b) isleap((a) % 400 + (b) % 400)
+#endif /* !defined isleap_sum */
+
+#ifndef SECSPERDAY
+#define SECSPERDAY ((long)SECSPERHOUR * HOURSPERDAY)
+#endif
+#define SECSPERNYEAR (SECSPERDAY * DAYSPERNYEAR)
+#define SECSPERLYEAR (SECSPERNYEAR + SECSPERDAY)
+
+#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 */
+
+static time_t absolute_min_time;
+static time_t absolute_max_time;
+static size_t longest;
+static char *progname;
+static int warned;
+
+static char *abbr(struct tm *);
+static void abbrok(const char *, const char *);
+static long delta(struct tm *, struct tm *);
+static void dumptime(const struct tm *);
+static time_t hunt(char *, time_t, time_t);
+static void setabsolutes(void);
+static void show(char *, time_t, int);
+static void usage(void);
+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;
+ int error = 0;
+
+ if (warned)
+ return;
+ cp = abbrp;
+ while (isascii(*cp) && isalpha((unsigned char)*cp))
+ ++cp;
+ (void) fflush(stdout);
+ if (cp - abbrp == 0) {
+ /*
+ * TRANSLATION_NOTE
+ * The first %s prints for the program name (zdump),
+ * the second %s prints the timezone name, the third
+ * %s prints the timezone abbreviation (tzname[0] or
+ * tzname[1]).
+ */
+ (void) fprintf(stderr, gettext("%s: warning: zone \"%s\" "
+ "abbreviation \"%s\" lacks alphabetic at start\n"),
+ progname, zone, abbrp);
+ error = 1;
+ } else if (cp - abbrp < 3) {
+ (void) fprintf(stderr, gettext("%s: warning: zone \"%s\" "
+ "abbreviation \"%s\" has fewer than 3 alphabetics\n"),
+ progname, zone, abbrp);
+ error = 1;
+ } else if (cp - abbrp > 6) {
+ (void) fprintf(stderr, gettext("%s: warning: zone \"%s\" "
+ "abbreviation \"%s\" has more than 6 alphabetics\n"),
+ progname, zone, abbrp);
+ error = 1;
+ }
+ if (error == 0 && (*cp == '+' || *cp == '-')) {
+ ++cp;
+ if (isascii(*cp) && isdigit((unsigned char)*cp))
+ if (*cp++ == '1' && *cp >= '0' && *cp <= '4')
+ ++cp;
+ if (*cp != '\0') {
+ (void) fprintf(stderr, gettext("%s: warning: "
+ "zone \"%s\" abbreviation \"%s\" differs from "
+ "POSIX standard\n"), progname, zone, abbrp);
+ error = 1;
+ }
+ }
+ if (error)
+ 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;
+ 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);
+
+ (void) setlocale(LC_ALL, "");
+#if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */
+#define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */
+#endif
+ (void) textdomain(TEXT_DOMAIN);
+
+ progname = argv[0];
+ for (i = 1; i < argc; ++i)
+ if (strcmp(argv[i], "--version") == 0) {
+ (void) printf("%s\n", elsieid);
+ exit(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 != EOF ||
+ (optind == argc - 1 && strcmp(argv[optind], "=") == 0)) {
+ usage();
+ /* NOTREACHED */
+ }
+ 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, gettext("%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]);
+
+ for (i = optind; i < argc; ++i) {
+ static char buf[MAX_STRING_LENGTH];
+ static char *tzp = NULL;
+
+ (void) unsetenv("TZ");
+ if (tzp != NULL)
+ free(tzp);
+ if ((tzp = malloc(3 + strlen(argv[i]) + 1)) == NULL) {
+ perror(progname);
+ exit(EXIT_FAILURE);
+ }
+ (void) strcpy(tzp, "TZ=");
+ (void) strcat(tzp, argv[i]);
+ if (putenv(tzp) != 0) {
+ perror(progname);
+ exit(EXIT_FAILURE);
+ }
+ if (!vflag) {
+ show(argv[i], now, FALSE);
+ continue;
+ }
+
+#if defined(sun)
+ /*
+ * We show the current time first, probably because we froze
+ * the behavior of zdump some time ago and then it got
+ * changed.
+ */
+ show(argv[i], now, TRUE);
+#endif
+ 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)
+ break;
+ /* check if newt will overrun maximum time_t value */
+ if (t > LONG_MAX - (SECSPERHOUR * 12))
+ break;
+ newt = t + SECSPERHOUR * 12;
+ if (newt >= cuthitime)
+ break;
+ 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;
+#if defined(sun)
+ show(argv[i], t, TRUE);
+ t -= SECSPERHOUR * HOURSPERDAY;
+ show(argv[i], t, TRUE);
+#else /* !defined(sun) */
+ t -= SECSPERHOUR * HOURSPERDAY;
+ show(argv[i], t, TRUE);
+ t += SECSPERHOUR * HOURSPERDAY;
+ show(argv[i], t, TRUE);
+#endif /* !defined(sun) */
+ }
+ if (fflush(stdout) || ferror(stdout)) {
+ (void) fprintf(stderr, "%s: ", progname);
+ (void) perror(gettext("Error writing standard output"));
+ exit(EXIT_FAILURE);
+ }
+ return (EXIT_SUCCESS);
+}
+
+static void
+setabsolutes()
+{
+#if defined(sun)
+ absolute_min_time = LONG_MIN;
+ absolute_max_time = LONG_MAX;
+#else
+ 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, gettext("%s: use of -v on "
+ "system with floating time_t other than float "
+ "or double\n"), progname);
+ exit(EXIT_FAILURE);
+ }
+ } else
+ /*CONSTANTCONDITION*/
+ if (0 > (time_t)-1) {
+ /*
+ * time_t is signed.
+ */
+ register time_t hibit;
+
+ for (hibit = 1; (hibit * 2) != 0; hibit *= 2)
+ continue;
+ absolute_min_time = hibit;
+ absolute_max_time = -(hibit + 1);
+ } else {
+ /*
+ * time_t is unsigned.
+ */
+ absolute_min_time = 0;
+ absolute_max_time = absolute_min_time - 1;
+ }
+#endif
+}
+
+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 time_t
+hunt(name, lot, hit)
+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(zone, t, v)
+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()
+{
+#if defined(sun)
+ /* time_t is signed long */
+ return ("%ld");
+#else
+ /*CONSTANTCONDITION*/
+ if (0.5 == (time_t)0.5) { /* floating */
+ /*CONSTANTCONDITION*/
+ if (sizeof (time_t) > sizeof (double))
+ return ("%Lg");
+ return ("%g");
+ }
+ /*CONSTANTCONDITION*/
+ if (0 > (time_t)-1) { /* signed */
+ /*CONSTANTCONDITION*/
+ if (sizeof (time_t) > sizeof (long))
+ return ("%lld");
+ /*CONSTANTCONDITION*/
+ if (sizeof (time_t) > sizeof (int))
+ return ("%ld");
+ return ("%d");
+ }
+ /*CONSTANTCONDITION*/
+ if (sizeof (time_t) > sizeof (unsigned long))
+ return ("%llu");
+ /*CONSTANTCONDITION*/
+ if (sizeof (time_t) > sizeof (unsigned int))
+ return ("%lu");
+ return ("%u");
+#endif
+}
+
+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));
+}
+
+static void
+usage()
+{
+ (void) fprintf(stderr, gettext(
+ "%s: [ --version ] [ -v ] [ -c [loyear,]hiyear ] zonename ...\n"),
+ progname);
+ exit(EXIT_FAILURE);
+ /* NOTREACHED */
+}
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