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authorEdwin Groothuis <edwin@FreeBSD.org>2009-05-20 12:24:39 +0000
committerEdwin Groothuis <edwin@FreeBSD.org>2009-05-20 12:24:39 +0000
commit80ca36b52f4732dba27b6bb58743c0f1ab5bd8e3 (patch)
treecd528237b1dd33b0e7b4ab1179bf58a6cde867b1 /zic/zic.c
parent9556ff65cd40f2afcdbab50cd76fc44ed2d3dcc3 (diff)
downloadsrc-80ca36b52f4732dba27b6bb58743c0f1ab5bd8e3.tar.gz
src-80ca36b52f4732dba27b6bb58743c0f1ab5bd8e3.zip
Vendor import of tzcode2009e.vendor/tzcode/tzcode2009e
Obtained from: ftp://elsie.nci.nih.gov/pub/
Notes
Notes: svn path=/vendor/tzcode/dist/; revision=192437 svn path=/vendor/tzcode/tzcode2009e/; revision=192438; tag=vendor/tzcode/tzcode2009e
Diffstat (limited to 'zic/zic.c')
-rw-r--r--zic/zic.c1147
1 files changed, 811 insertions, 336 deletions
diff --git a/zic/zic.c b/zic/zic.c
index 1a046ff3ed92..01d9f135bd7a 100644
--- a/zic/zic.c
+++ b/zic/zic.c
@@ -1,9 +1,22 @@
-static char elsieid[] = "@(#)zic.c 7.116";
+/*
+** This file is in the public domain, so clarified as of
+** 2006-07-17 by Arthur David Olson.
+*/
+
+static char elsieid[] = "@(#)zic.c 8.19";
#include "private.h"
#include "locale.h"
#include "tzfile.h"
+#define ZIC_VERSION '2'
+
+typedef int_fast64_t zic_t;
+
+#ifndef ZIC_MAX_ABBR_LEN_WO_WARN
+#define ZIC_MAX_ABBR_LEN_WO_WARN 6
+#endif /* !defined ZIC_MAX_ABBR_LEN_WO_WARN */
+
#if HAVE_SYS_STAT_H
#include "sys/stat.h"
#endif
@@ -15,7 +28,7 @@ static char elsieid[] = "@(#)zic.c 7.116";
/*
** On some ancient hosts, predicates like `isspace(C)' are defined
-** only if isascii(C) || C == EOF. Modern hosts obey the C Standard,
+** only if isascii(C) || C == EOF. Modern hosts obey the C Standard,
** which says they are defined only if C == ((unsigned char) C) || C == EOF.
** Neither the C Standard nor Posix require that `isascii' exist.
** For portability, we check both ancient and modern requirements.
@@ -26,6 +39,11 @@ static char elsieid[] = "@(#)zic.c 7.116";
#define isascii(x) 1
#endif
+#define OFFSET_STRLEN_MAXIMUM (7 + INT_STRLEN_MAXIMUM(long))
+#define RULE_STRLEN_MAXIMUM 8 /* "Mdd.dd.d" */
+
+#define end(cp) (strchr((cp), '\0'))
+
struct rule {
const char * r_filename;
int r_linenum;
@@ -34,6 +52,8 @@ struct rule {
int r_loyear; /* for example, 1986 */
int r_hiyear; /* for example, 1986 */
const char * r_yrtype;
+ int r_lowasnum;
+ int r_hiwasnum;
int r_month; /* 0..11 */
@@ -50,7 +70,7 @@ struct rule {
const char * r_abbrvar; /* variable part of abbreviation */
int r_todo; /* a rule to do (used in outzone) */
- time_t r_temp; /* used in outzone */
+ zic_t r_temp; /* used in outzone */
};
/*
@@ -76,77 +96,84 @@ struct zone {
int z_nrules;
struct rule z_untilrule;
- time_t z_untiltime;
+ zic_t z_untiltime;
};
-extern int getopt P((int argc, char * const argv[],
- const char * options));
-extern int link P((const char * fromname, const char * toname));
+extern int getopt(int argc, char * const argv[],
+ const char * options);
+extern int link(const char * fromname, const char * toname);
extern char * optarg;
extern int optind;
-static void addtt P((time_t starttime, int type));
-static int addtype P((long gmtoff, const char * abbr, int isdst,
- int ttisstd, int ttisgmt));
-static void leapadd P((time_t t, int positive, int rolling, int count));
-static void adjleap P((void));
-static void associate P((void));
-static int ciequal P((const char * ap, const char * bp));
-static void convert P((long val, char * buf));
-static void dolink P((const char * fromfile, const char * tofile));
-static void doabbr P((char * abbr, const char * format,
- const char * letters, int isdst));
-static void eat P((const char * name, int num));
-static void eats P((const char * name, int num,
- const char * rname, int rnum));
-static long eitol P((int i));
-static void error P((const char * message));
-static char ** getfields P((char * buf));
-static long gethms P((const char * string, const char * errstrng,
- int signable));
-static void infile P((const char * filename));
-static void inleap P((char ** fields, int nfields));
-static void inlink P((char ** fields, int nfields));
-static void inrule P((char ** fields, int nfields));
-static int inzcont P((char ** fields, int nfields));
-static int inzone P((char ** fields, int nfields));
-static int inzsub P((char ** fields, int nfields, int iscont));
-static int itsabbr P((const char * abbr, const char * word));
-static int itsdir P((const char * name));
-static int lowerit P((int c));
-static char * memcheck P((char * tocheck));
-static int mkdirs P((char * filename));
-static void newabbr P((const char * abbr));
-static long oadd P((long t1, long t2));
-static void outzone P((const struct zone * zp, int ntzones));
-static void puttzcode P((long code, FILE * fp));
-static int rcomp P((const void * leftp, const void * rightp));
-static time_t rpytime P((const struct rule * rp, int wantedy));
-static void rulesub P((struct rule * rp,
+static void addtt(zic_t starttime, int type);
+static int addtype(long gmtoff, const char * abbr, int isdst,
+ int ttisstd, int ttisgmt);
+static void leapadd(zic_t t, int positive, int rolling, int count);
+static void adjleap(void);
+static void associate(void);
+static int ciequal(const char * ap, const char * bp);
+static void convert(long val, char * buf);
+static void convert64(zic_t val, char * buf);
+static void dolink(const char * fromfield, const char * tofield);
+static void doabbr(char * abbr, const char * format,
+ const char * letters, int isdst, int doquotes);
+static void eat(const char * name, int num);
+static void eats(const char * name, int num,
+ const char * rname, int rnum);
+static long eitol(int i);
+static void error(const char * message);
+static char ** getfields(char * buf);
+static long gethms(const char * string, const char * errstrng,
+ int signable);
+static void infile(const char * filename);
+static void inleap(char ** fields, int nfields);
+static void inlink(char ** fields, int nfields);
+static void inrule(char ** fields, int nfields);
+static int inzcont(char ** fields, int nfields);
+static int inzone(char ** fields, int nfields);
+static int inzsub(char ** fields, int nfields, int iscont);
+static int is32(zic_t x);
+static int itsabbr(const char * abbr, const char * word);
+static int itsdir(const char * name);
+static int lowerit(int c);
+static char * memcheck(char * tocheck);
+static int mkdirs(char * filename);
+static void newabbr(const char * abbr);
+static long oadd(long t1, long t2);
+static void outzone(const struct zone * zp, int ntzones);
+static void puttzcode(long code, FILE * fp);
+static void puttzcode64(zic_t code, FILE * fp);
+static int rcomp(const void * leftp, const void * rightp);
+static zic_t rpytime(const struct rule * rp, int wantedy);
+static void rulesub(struct rule * rp,
const char * loyearp, const char * hiyearp,
const char * typep, const char * monthp,
- const char * dayp, const char * timep));
-static void setboundaries P((void));
-static time_t tadd P((time_t t1, long t2));
-static void usage P((void));
-static void writezone P((const char * name));
-static int yearistype P((int year, const char * type));
-
-#if !(HAVE_STRERROR - 0)
-static char * strerror P((int));
-#endif /* !(HAVE_STRERROR - 0) */
+ const char * dayp, const char * timep);
+static int stringoffset(char * result, long offset);
+static int stringrule(char * result, const struct rule * rp,
+ long dstoff, long gmtoff);
+static void stringzone(char * result,
+ const struct zone * zp, int ntzones);
+static void setboundaries(void);
+static zic_t tadd(zic_t t1, long t2);
+static void usage(FILE *stream, int status);
+static void writezone(const char * name, const char * string);
+static int yearistype(int year, const char * type);
static int charcnt;
static int errors;
static const char * filename;
static int leapcnt;
+static int leapseen;
+static int leapminyear;
+static int leapmaxyear;
static int linenum;
-static time_t max_time;
+static int max_abbrvar_len;
+static int max_format_len;
+static zic_t max_time;
static int max_year;
-static int max_year_representable;
-static time_t min_time;
+static zic_t min_time;
static int min_year;
-static int min_year_representable;
static int noise;
static const char * rfilename;
static int rlinenum;
@@ -256,8 +283,8 @@ struct lookup {
const int l_value;
};
-static struct lookup const * byword P((const char * string,
- const struct lookup * lp));
+static struct lookup const * byword(const char * string,
+ const struct lookup * lp);
static struct lookup const line_codes[] = {
{ "Rule", LC_RULE },
@@ -334,7 +361,7 @@ static const int len_years[2] = {
};
static struct attype {
- time_t at;
+ zic_t at;
unsigned char type;
} attypes[TZ_MAX_TIMES];
static long gmtoffs[TZ_MAX_TYPES];
@@ -343,7 +370,7 @@ static unsigned char abbrinds[TZ_MAX_TYPES];
static char ttisstds[TZ_MAX_TYPES];
static char ttisgmts[TZ_MAX_TYPES];
static char chars[TZ_MAX_CHARS];
-static time_t trans[TZ_MAX_LEAPS];
+static zic_t trans[TZ_MAX_LEAPS];
static long corr[TZ_MAX_LEAPS];
static char roll[TZ_MAX_LEAPS];
@@ -360,7 +387,7 @@ char * const ptr;
(void) fprintf(stderr, _("%s: Memory exhausted: %s\n"),
progname, e);
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
return ptr;
}
@@ -374,19 +401,6 @@ char * const ptr;
** Error handling.
*/
-#if !(HAVE_STRERROR - 0)
-static char *
-strerror(errnum)
-int errnum;
-{
- extern char * sys_errlist[];
- extern int sys_nerr;
-
- return (errnum > 0 && errnum <= sys_nerr) ?
- sys_errlist[errnum] : _("Unknown system error");
-}
-#endif /* !(HAVE_STRERROR - 0) */
-
static void
eats(name, num, rname, rnum)
const char * const name;
@@ -440,11 +454,15 @@ const char * const string;
}
static void
-usage P((void))
+usage(FILE *stream, int status)
{
- (void) fprintf(stderr, _("%s: usage is %s [ --version ] [ -s ] [ -v ] [ -l localtime ] [ -p posixrules ] \\\n\t[ -d directory ] [ -L leapseconds ] [ -y yearistype ] [ filename ... ]\n"),
- progname, progname);
- (void) exit(EXIT_FAILURE);
+ (void) fprintf(stream, _("%s: usage is %s \
+[ --version ] [ --help ] [ -v ] [ -l localtime ] [ -p posixrules ] \\\n\
+\t[ -d directory ] [ -L leapseconds ] [ -y yearistype ] [ filename ... ]\n\
+\n\
+Report bugs to tz@elsie.nci.nih.gov.\n"),
+ progname, progname);
+ exit(status);
}
static const char * psxrules;
@@ -452,7 +470,6 @@ static const char * lcltime;
static const char * directory;
static const char * leapsec;
static const char * yitcommand;
-static int sflag = FALSE;
int
main(argc, argv)
@@ -466,23 +483,30 @@ char * argv[];
#ifdef unix
(void) umask(umask(S_IWGRP | S_IWOTH) | (S_IWGRP | S_IWOTH));
#endif /* defined unix */
-#if HAVE_GETTEXT - 0
- (void) setlocale(LC_MESSAGES, "");
+#if HAVE_GETTEXT
+ (void) setlocale(LC_ALL, "");
#ifdef TZ_DOMAINDIR
(void) bindtextdomain(TZ_DOMAIN, TZ_DOMAINDIR);
#endif /* defined TEXTDOMAINDIR */
(void) textdomain(TZ_DOMAIN);
-#endif /* HAVE_GETTEXT - 0 */
+#endif /* HAVE_GETTEXT */
progname = argv[0];
+ if (TYPE_BIT(zic_t) < 64) {
+ (void) fprintf(stderr, "%s: %s\n", progname,
+ _("wild compilation-time specification of zic_t"));
+ exit(EXIT_FAILURE);
+ }
for (i = 1; i < argc; ++i)
if (strcmp(argv[i], "--version") == 0) {
(void) printf("%s\n", elsieid);
- (void) exit(EXIT_SUCCESS);
+ exit(EXIT_SUCCESS);
+ } else if (strcmp(argv[i], "--help") == 0) {
+ usage(stdout, EXIT_SUCCESS);
}
while ((c = getopt(argc, argv, "d:l:p:L:vsy:")) != EOF && c != -1)
switch (c) {
default:
- usage();
+ usage(stderr, EXIT_FAILURE);
case 'd':
if (directory == NULL)
directory = optarg;
@@ -490,7 +514,7 @@ char * argv[];
(void) fprintf(stderr,
_("%s: More than one -d option specified\n"),
progname);
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
break;
case 'l':
@@ -500,7 +524,7 @@ _("%s: More than one -d option specified\n"),
(void) fprintf(stderr,
_("%s: More than one -l option specified\n"),
progname);
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
break;
case 'p':
@@ -510,7 +534,7 @@ _("%s: More than one -l option specified\n"),
(void) fprintf(stderr,
_("%s: More than one -p option specified\n"),
progname);
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
break;
case 'y':
@@ -520,7 +544,7 @@ _("%s: More than one -p option specified\n"),
(void) fprintf(stderr,
_("%s: More than one -y option specified\n"),
progname);
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
break;
case 'L':
@@ -530,18 +554,18 @@ _("%s: More than one -y option specified\n"),
(void) fprintf(stderr,
_("%s: More than one -L option specified\n"),
progname);
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
break;
case 'v':
noise = TRUE;
break;
case 's':
- sflag = TRUE;
+ (void) printf("%s: -s ignored\n", progname);
break;
}
if (optind == argc - 1 && strcmp(argv[optind], "=") == 0)
- usage(); /* usage message by request */
+ usage(stderr, EXIT_FAILURE); /* usage message by request */
if (directory == NULL)
directory = TZDIR;
if (yitcommand == NULL)
@@ -557,7 +581,7 @@ _("%s: More than one -L option specified\n"),
for (i = optind; i < argc; ++i)
infile(argv[i]);
if (errors)
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
associate();
for (i = 0; i < nzones; i = j) {
/*
@@ -573,6 +597,11 @@ _("%s: More than one -L option specified\n"),
for (i = 0; i < nlinks; ++i) {
eat(links[i].l_filename, links[i].l_linenum);
dolink(links[i].l_from, links[i].l_to);
+ if (noise)
+ for (j = 0; j < nlinks; ++j)
+ if (strcmp(links[i].l_to,
+ links[j].l_from) == 0)
+ warning(_("link to link"));
}
if (lcltime != NULL) {
eat("command line", 1);
@@ -586,26 +615,26 @@ _("%s: More than one -L option specified\n"),
}
static void
-dolink(fromfile, tofile)
-const char * const fromfile;
-const char * const tofile;
+dolink(fromfield, tofield)
+const char * const fromfield;
+const char * const tofield;
{
register char * fromname;
register char * toname;
- if (fromfile[0] == '/')
- fromname = ecpyalloc(fromfile);
+ if (fromfield[0] == '/')
+ fromname = ecpyalloc(fromfield);
else {
fromname = ecpyalloc(directory);
fromname = ecatalloc(fromname, "/");
- fromname = ecatalloc(fromname, fromfile);
+ fromname = ecatalloc(fromname, fromfield);
}
- if (tofile[0] == '/')
- toname = ecpyalloc(tofile);
+ if (tofield[0] == '/')
+ toname = ecpyalloc(tofield);
else {
toname = ecpyalloc(directory);
toname = ecatalloc(toname, "/");
- toname = ecatalloc(toname, tofile);
+ toname = ecatalloc(toname, tofield);
}
/*
** We get to be careful here since
@@ -617,75 +646,54 @@ const char * const tofile;
int result;
if (mkdirs(toname) != 0)
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
result = link(fromname, toname);
-#if (HAVE_SYMLINK - 0)
+#if HAVE_SYMLINK
if (result != 0 &&
- access(fromname, F_OK) == 0 &&
- !itsdir(fromname)) {
- const char *s = tofile;
- register char * symlinkcontents = NULL;
- while ((s = strchr(s+1, '/')) != NULL)
- symlinkcontents = ecatalloc(symlinkcontents, "../");
- symlinkcontents = ecatalloc(symlinkcontents, fromfile);
-
- result = symlink(symlinkcontents, toname);
- if (result == 0)
+ access(fromname, F_OK) == 0 &&
+ !itsdir(fromname)) {
+ const char *s = tofield;
+ register char * symlinkcontents = NULL;
+
+ while ((s = strchr(s+1, '/')) != NULL)
+ symlinkcontents =
+ ecatalloc(symlinkcontents,
+ "../");
+ symlinkcontents =
+ ecatalloc(symlinkcontents,
+ fromname);
+ result = symlink(symlinkcontents,
+ toname);
+ if (result == 0)
warning(_("hard link failed, symbolic link used"));
- ifree(symlinkcontents);
+ ifree(symlinkcontents);
}
-#endif
+#endif /* HAVE_SYMLINK */
if (result != 0) {
const char *e = strerror(errno);
(void) fprintf(stderr,
_("%s: Can't link from %s to %s: %s\n"),
progname, fromname, toname, e);
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
}
ifree(fromname);
ifree(toname);
}
-#ifndef INT_MAX
-#define INT_MAX ((int) (((unsigned)~0)>>1))
-#endif /* !defined INT_MAX */
-
-#ifndef INT_MIN
-#define INT_MIN ((int) ~(((unsigned)~0)>>1))
-#endif /* !defined INT_MIN */
-
-/*
-** The tz file format currently allows at most 32-bit quantities.
-** This restriction should be removed before signed 32-bit values
-** wrap around in 2038, but unfortunately this will require a
-** change to the tz file format.
-*/
-
-#define MAX_BITS_IN_FILE 32
-#define TIME_T_BITS_IN_FILE ((TYPE_BIT(time_t) < MAX_BITS_IN_FILE) ? TYPE_BIT(time_t) : MAX_BITS_IN_FILE)
+#define TIME_T_BITS_IN_FILE 64
static void
-setboundaries P((void))
+setboundaries(void)
{
- if (TYPE_SIGNED(time_t)) {
- min_time = ~ (time_t) 0;
- min_time <<= TIME_T_BITS_IN_FILE - 1;
- max_time = ~ (time_t) 0 - min_time;
- if (sflag)
- min_time = 0;
- } else {
- min_time = 0;
- max_time = 2 - sflag;
- max_time <<= TIME_T_BITS_IN_FILE - 1;
- --max_time;
- }
- min_year = TM_YEAR_BASE + gmtime(&min_time)->tm_year;
- max_year = TM_YEAR_BASE + gmtime(&max_time)->tm_year;
- min_year_representable = min_year;
- max_year_representable = max_year;
+ register int i;
+
+ min_time = -1;
+ for (i = 0; i < TIME_T_BITS_IN_FILE - 1; ++i)
+ min_time *= 2;
+ max_time = -(min_time + 1);
}
static int
@@ -720,7 +728,7 @@ const void * cp2;
}
static void
-associate P((void))
+associate(void)
{
register struct zone * zp;
register struct rule * rp;
@@ -782,7 +790,7 @@ associate P((void))
*/
eat(zp->z_filename, zp->z_linenum);
zp->z_stdoff = gethms(zp->z_rule, _("unruly zone"),
- TRUE);
+ TRUE);
/*
** Note, though, that if there's no rule,
** a '%s' in the format is a bad thing.
@@ -792,7 +800,7 @@ associate P((void))
}
}
if (errors)
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
static void
@@ -816,7 +824,7 @@ const char * name;
(void) fprintf(stderr, _("%s: Can't open %s: %s\n"),
progname, name, e);
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
wantcont = FALSE;
for (num = 1; ; ++num) {
@@ -826,7 +834,7 @@ const char * name;
cp = strchr(buf, '\n');
if (cp == NULL) {
error(_("line too long"));
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
*cp = '\0';
fields = getfields(buf);
@@ -870,7 +878,7 @@ _("%s: Leap line in non leap seconds file %s\n"),
(void) fprintf(stderr,
_("%s: panic: Invalid l_value %d\n"),
progname, lp->l_value);
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
}
ifree((char *) fields);
@@ -878,14 +886,14 @@ _("%s: panic: Invalid l_value %d\n"),
if (ferror(fp)) {
(void) fprintf(stderr, _("%s: Error reading %s\n"),
progname, filename);
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
if (fp != stdin && fclose(fp)) {
const char *e = strerror(errno);
(void) fprintf(stderr, _("%s: Error closing %s: %s\n"),
progname, filename, e);
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
if (wantcont)
error(_("expected continuation line not found"));
@@ -905,7 +913,8 @@ const char * string;
const char * const errstring;
const int signable;
{
- int hh, mm, ss, sign;
+ long hh;
+ int mm, ss, sign;
if (string == NULL || *string == '\0')
return 0;
@@ -915,27 +924,32 @@ const int signable;
sign = -1;
++string;
} else sign = 1;
- if (sscanf(string, scheck(string, "%d"), &hh) == 1)
+ if (sscanf(string, scheck(string, "%ld"), &hh) == 1)
mm = ss = 0;
- else if (sscanf(string, scheck(string, "%d:%d"), &hh, &mm) == 2)
+ else if (sscanf(string, scheck(string, "%ld:%d"), &hh, &mm) == 2)
ss = 0;
- else if (sscanf(string, scheck(string, "%d:%d:%d"),
+ else if (sscanf(string, scheck(string, "%ld:%d:%d"),
&hh, &mm, &ss) != 3) {
error(errstring);
return 0;
}
- if ((hh < 0 || hh >= HOURSPERDAY ||
+ if (hh < 0 ||
mm < 0 || mm >= MINSPERHOUR ||
- ss < 0 || ss > SECSPERMIN) &&
- !(hh == HOURSPERDAY && mm == 0 && ss == 0)) {
+ ss < 0 || ss > SECSPERMIN) {
error(errstring);
return 0;
}
- if (noise && hh == HOURSPERDAY)
+ if (LONG_MAX / SECSPERHOUR < hh) {
+ error(_("time overflow"));
+ return 0;
+ }
+ if (noise && hh == HOURSPERDAY && mm == 0 && ss == 0)
warning(_("24:00 not handled by pre-1998 versions of zic"));
- return eitol(sign) *
- (eitol(hh * MINSPERHOUR + mm) *
- eitol(SECSPERMIN) + eitol(ss));
+ if (noise && (hh > HOURSPERDAY ||
+ (hh == HOURSPERDAY && (mm != 0 || ss != 0))))
+warning(_("values over 24 hours not handled by pre-2007 versions of zic"));
+ return oadd(eitol(sign) * hh * eitol(SECSPERHOUR),
+ eitol(sign) * (eitol(mm) * eitol(SECSPERMIN) + eitol(ss)));
}
static void
@@ -960,6 +974,8 @@ const int nfields;
fields[RF_MONTH], fields[RF_DAY], fields[RF_TOD]);
r.r_name = ecpyalloc(fields[RF_NAME]);
r.r_abbrvar = ecpyalloc(fields[RF_ABBRVAR]);
+ if (max_abbrvar_len < strlen(r.r_abbrvar))
+ max_abbrvar_len = strlen(r.r_abbrvar);
rules = (struct rule *) (void *) erealloc((char *) rules,
(int) ((nrules + 1) * sizeof *rules));
rules[nrules++] = r;
@@ -1065,6 +1081,8 @@ const int iscont;
}
z.z_rule = ecpyalloc(fields[i_rule]);
z.z_format = ecpyalloc(fields[i_format]);
+ if (max_format_len < strlen(z.z_format))
+ max_format_len = strlen(z.z_format);
hasuntil = nfields > i_untilyear;
if (hasuntil) {
z.z_untilrule.r_filename = filename;
@@ -1085,7 +1103,9 @@ const int iscont;
zones[nzones - 1].z_untiltime > min_time &&
zones[nzones - 1].z_untiltime < max_time &&
zones[nzones - 1].z_untiltime >= z.z_untiltime) {
- error(_("Zone continuation line end time is not after end time of previous line"));
+ error(_(
+"Zone continuation line end time is not after end time of previous line"
+ ));
return FALSE;
}
}
@@ -1109,7 +1129,7 @@ const int nfields;
register int i, j;
int year, month, day;
long dayoff, tod;
- time_t t;
+ zic_t t;
if (nfields != LEAP_FIELDS) {
error(_("wrong number of fields on Leap line"));
@@ -1118,12 +1138,17 @@ const int nfields;
dayoff = 0;
cp = fields[LP_YEAR];
if (sscanf(cp, scheck(cp, "%d"), &year) != 1) {
- /*
- * Leapin' Lizards!
- */
- error(_("invalid leaping year"));
- return;
+ /*
+ ** Leapin' Lizards!
+ */
+ error(_("invalid leaping year"));
+ return;
}
+ if (!leapseen || leapmaxyear < year)
+ leapmaxyear = year;
+ if (!leapseen || leapminyear > year)
+ leapminyear = year;
+ leapseen = TRUE;
j = EPOCH_YEAR;
while (j != year) {
if (year > j) {
@@ -1153,7 +1178,7 @@ const int nfields;
return;
}
dayoff = oadd(dayoff, eitol(day - 1));
- if (dayoff < 0 && !TYPE_SIGNED(time_t)) {
+ if (dayoff < 0 && !TYPE_SIGNED(zic_t)) {
error(_("time before zero"));
return;
}
@@ -1165,7 +1190,7 @@ const int nfields;
error(_("time too large"));
return;
}
- t = (time_t) dayoff * SECSPERDAY;
+ t = (zic_t) dayoff * SECSPERDAY;
tod = gethms(fields[LP_TIME], _("invalid time of day"), FALSE);
cp = fields[LP_CORR];
{
@@ -1189,7 +1214,9 @@ const int nfields;
return;
}
if ((lp = byword(fields[LP_ROLL], leap_types)) == NULL) {
- error(_("illegal Rolling/Stationary field on Leap line"));
+ error(_(
+ "illegal Rolling/Stationary field on Leap line"
+ ));
return;
}
leapadd(tadd(t, tod), positive, lp->l_value, count);
@@ -1276,7 +1303,8 @@ const char * const timep;
*/
cp = loyearp;
lp = byword(cp, begin_years);
- if (lp != NULL) switch ((int) lp->l_value) {
+ rp->r_lowasnum = lp == NULL;
+ if (!rp->r_lowasnum) switch ((int) lp->l_value) {
case YR_MINIMUM:
rp->r_loyear = INT_MIN;
break;
@@ -1287,18 +1315,15 @@ const char * const timep;
(void) fprintf(stderr,
_("%s: panic: Invalid l_value %d\n"),
progname, lp->l_value);
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
} else if (sscanf(cp, scheck(cp, "%d"), &rp->r_loyear) != 1) {
error(_("invalid starting year"));
return;
- } else if (noise) {
- if (rp->r_loyear < min_year_representable)
- warning(_("starting year too low to be represented"));
- else if (rp->r_loyear > max_year_representable)
- warning(_("starting year too high to be represented"));
}
cp = hiyearp;
- if ((lp = byword(cp, end_years)) != NULL) switch ((int) lp->l_value) {
+ lp = byword(cp, end_years);
+ rp->r_hiwasnum = lp == NULL;
+ if (!rp->r_hiwasnum) switch ((int) lp->l_value) {
case YR_MINIMUM:
rp->r_hiyear = INT_MIN;
break;
@@ -1312,15 +1337,10 @@ const char * const timep;
(void) fprintf(stderr,
_("%s: panic: Invalid l_value %d\n"),
progname, lp->l_value);
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
} else if (sscanf(cp, scheck(cp, "%d"), &rp->r_hiyear) != 1) {
error(_("invalid ending year"));
return;
- } else if (noise) {
- if (rp->r_loyear < min_year_representable)
- warning(_("ending year too low to be represented"));
- else if (rp->r_loyear > max_year_representable)
- warning(_("ending year too high to be represented"));
}
if (rp->r_loyear > rp->r_hiyear) {
error(_("starting year greater than ending year"));
@@ -1335,8 +1355,6 @@ const char * const timep;
}
rp->r_yrtype = ecpyalloc(typep);
}
- if (rp->r_loyear < min_year && rp->r_loyear > 0)
- min_year = rp->r_loyear;
/*
** Day work.
** Accept things such as:
@@ -1390,13 +1408,25 @@ const long val;
char * const buf;
{
register int i;
- register long shift;
+ register int shift;
for (i = 0, shift = 24; i < 4; ++i, shift -= 8)
buf[i] = val >> shift;
}
static void
+convert64(val, buf)
+const zic_t val;
+char * const buf;
+{
+ register int i;
+ register int shift;
+
+ for (i = 0, shift = 56; i < 8; ++i, shift -= 8)
+ buf[i] = val >> shift;
+}
+
+static void
puttzcode(val, fp)
const long val;
FILE * const fp;
@@ -1407,28 +1437,50 @@ FILE * const fp;
(void) fwrite((void *) buf, (size_t) sizeof buf, (size_t) 1, fp);
}
+static void
+puttzcode64(val, fp)
+const zic_t val;
+FILE * const fp;
+{
+ char buf[8];
+
+ convert64(val, buf);
+ (void) fwrite((void *) buf, (size_t) sizeof buf, (size_t) 1, fp);
+}
+
static int
atcomp(avp, bvp)
-void * avp;
-void * bvp;
+const void * avp;
+const void * bvp;
{
- if (((struct attype *) avp)->at < ((struct attype *) bvp)->at)
- return -1;
- else if (((struct attype *) avp)->at > ((struct attype *) bvp)->at)
- return 1;
- else return 0;
+ const zic_t a = ((const struct attype *) avp)->at;
+ const zic_t b = ((const struct attype *) bvp)->at;
+
+ return (a < b) ? -1 : (a > b);
+}
+
+static int
+is32(x)
+const zic_t x;
+{
+ return INT32_MIN <= x && x <= INT32_MAX;
}
static void
-writezone(name)
+writezone(name, string)
const char * const name;
+const char * const string;
{
- register FILE * fp;
- register int i, j;
- static char * fullname;
- static struct tzhead tzh;
- time_t ats[TZ_MAX_TIMES];
- unsigned char types[TZ_MAX_TIMES];
+ register FILE * fp;
+ register int i, j;
+ register int leapcnt32, leapi32;
+ register int timecnt32, timei32;
+ register int pass;
+ static char * fullname;
+ static const struct tzhead tzh0;
+ static struct tzhead tzh;
+ zic_t ats[TZ_MAX_TIMES];
+ unsigned char types[TZ_MAX_TIMES];
/*
** Sort.
@@ -1451,14 +1503,13 @@ const char * const name;
while (fromi < timecnt && attypes[fromi].type == 0)
++fromi; /* handled by default rule */
for ( ; fromi < timecnt; ++fromi) {
- if (toi != 0
- && ((attypes[fromi].at
- + gmtoffs[attypes[toi - 1].type])
- <= (attypes[toi - 1].at
- + gmtoffs[toi == 1 ? 0
- : attypes[toi - 2].type]))) {
- attypes[toi - 1].type = attypes[fromi].type;
- continue;
+ if (toi != 0 && ((attypes[fromi].at +
+ gmtoffs[attypes[toi - 1].type]) <=
+ (attypes[toi - 1].at + gmtoffs[toi == 1 ? 0
+ : attypes[toi - 2].type]))) {
+ attypes[toi - 1].type =
+ attypes[fromi].type;
+ continue;
}
if (toi == 0 ||
attypes[toi - 1].type != attypes[fromi].type)
@@ -1473,6 +1524,36 @@ const char * const name;
ats[i] = attypes[i].at;
types[i] = attypes[i].type;
}
+ /*
+ ** Correct for leap seconds.
+ */
+ for (i = 0; i < timecnt; ++i) {
+ j = leapcnt;
+ while (--j >= 0)
+ if (ats[i] > trans[j] - corr[j]) {
+ ats[i] = tadd(ats[i], corr[j]);
+ break;
+ }
+ }
+ /*
+ ** Figure out 32-bit-limited starts and counts.
+ */
+ timecnt32 = timecnt;
+ timei32 = 0;
+ leapcnt32 = leapcnt;
+ leapi32 = 0;
+ while (timecnt32 > 0 && !is32(ats[timecnt32 - 1]))
+ --timecnt32;
+ while (timecnt32 > 0 && !is32(ats[timei32])) {
+ --timecnt32;
+ ++timei32;
+ }
+ while (leapcnt32 > 0 && !is32(trans[leapcnt32 - 1]))
+ --leapcnt32;
+ while (leapcnt32 > 0 && !is32(trans[leapi32])) {
+ --leapcnt32;
+ ++leapi32;
+ }
fullname = erealloc(fullname,
(int) (strlen(directory) + 1 + strlen(name) + 1));
(void) sprintf(fullname, "%s/%s", directory, name);
@@ -1484,102 +1565,388 @@ const char * const name;
(void) fprintf(stderr, _("%s: Can't remove %s: %s\n"),
progname, fullname, e);
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
if ((fp = fopen(fullname, "wb")) == NULL) {
if (mkdirs(fullname) != 0)
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
if ((fp = fopen(fullname, "wb")) == NULL) {
const char *e = strerror(errno);
(void) fprintf(stderr, _("%s: Can't create %s: %s\n"),
progname, fullname, e);
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
}
- convert(eitol(typecnt), tzh.tzh_ttisgmtcnt);
- convert(eitol(typecnt), tzh.tzh_ttisstdcnt);
- convert(eitol(leapcnt), tzh.tzh_leapcnt);
- convert(eitol(timecnt), tzh.tzh_timecnt);
- convert(eitol(typecnt), tzh.tzh_typecnt);
- convert(eitol(charcnt), tzh.tzh_charcnt);
- (void) strncpy(tzh.tzh_magic, TZ_MAGIC, sizeof tzh.tzh_magic);
-#define DO(field) (void) fwrite((void *) tzh.field, (size_t) sizeof tzh.field, (size_t) 1, fp)
- DO(tzh_magic);
- DO(tzh_reserved);
- DO(tzh_ttisgmtcnt);
- DO(tzh_ttisstdcnt);
- DO(tzh_leapcnt);
- DO(tzh_timecnt);
- DO(tzh_typecnt);
- DO(tzh_charcnt);
-#undef DO
- for (i = 0; i < timecnt; ++i) {
- j = leapcnt;
- while (--j >= 0)
- if (ats[i] >= trans[j]) {
- ats[i] = tadd(ats[i], corr[j]);
- break;
+ for (pass = 1; pass <= 2; ++pass) {
+ register int thistimei, thistimecnt;
+ register int thisleapi, thisleapcnt;
+ register int thistimelim, thisleaplim;
+ int writetype[TZ_MAX_TIMES];
+ int typemap[TZ_MAX_TYPES];
+ register int thistypecnt;
+ char thischars[TZ_MAX_CHARS];
+ char thischarcnt;
+ int indmap[TZ_MAX_CHARS];
+
+ if (pass == 1) {
+ thistimei = timei32;
+ thistimecnt = timecnt32;
+ thisleapi = leapi32;
+ thisleapcnt = leapcnt32;
+ } else {
+ thistimei = 0;
+ thistimecnt = timecnt;
+ thisleapi = 0;
+ thisleapcnt = leapcnt;
+ }
+ thistimelim = thistimei + thistimecnt;
+ thisleaplim = thisleapi + thisleapcnt;
+ for (i = 0; i < typecnt; ++i)
+ writetype[i] = thistimecnt == timecnt;
+ if (thistimecnt == 0) {
+ /*
+ ** No transition times fall in the current
+ ** (32- or 64-bit) window.
+ */
+ if (typecnt != 0)
+ writetype[typecnt - 1] = TRUE;
+ } else {
+ for (i = thistimei - 1; i < thistimelim; ++i)
+ if (i >= 0)
+ writetype[types[i]] = TRUE;
+ /*
+ ** For America/Godthab and Antarctica/Palmer
+ */
+ if (thistimei == 0)
+ writetype[0] = TRUE;
+ }
+ thistypecnt = 0;
+ for (i = 0; i < typecnt; ++i)
+ typemap[i] = writetype[i] ? thistypecnt++ : -1;
+ for (i = 0; i < sizeof indmap / sizeof indmap[0]; ++i)
+ indmap[i] = -1;
+ thischarcnt = 0;
+ for (i = 0; i < typecnt; ++i) {
+ register char * thisabbr;
+
+ if (!writetype[i])
+ continue;
+ if (indmap[abbrinds[i]] >= 0)
+ continue;
+ thisabbr = &chars[abbrinds[i]];
+ for (j = 0; j < thischarcnt; ++j)
+ if (strcmp(&thischars[j], thisabbr) == 0)
+ break;
+ if (j == thischarcnt) {
+ (void) strcpy(&thischars[(int) thischarcnt],
+ thisabbr);
+ thischarcnt += strlen(thisabbr) + 1;
}
- puttzcode((long) ats[i], fp);
- }
- if (timecnt > 0)
- (void) fwrite((void *) types, (size_t) sizeof types[0],
- (size_t) timecnt, fp);
- for (i = 0; i < typecnt; ++i) {
- puttzcode((long) gmtoffs[i], fp);
- (void) putc(isdsts[i], fp);
- (void) putc(abbrinds[i], fp);
- }
- if (charcnt != 0)
- (void) fwrite((void *) chars, (size_t) sizeof chars[0],
- (size_t) charcnt, fp);
- for (i = 0; i < leapcnt; ++i) {
- if (roll[i]) {
- if (timecnt == 0 || trans[i] < ats[0]) {
- j = 0;
- while (isdsts[j])
- if (++j >= typecnt) {
- j = 0;
- break;
- }
- } else {
- j = 1;
- while (j < timecnt && trans[i] >= ats[j])
- ++j;
- j = types[j - 1];
+ indmap[abbrinds[i]] = j;
+ }
+#define DO(field) (void) fwrite((void *) tzh.field, \
+ (size_t) sizeof tzh.field, (size_t) 1, fp)
+ tzh = tzh0;
+ (void) strncpy(tzh.tzh_magic, TZ_MAGIC, sizeof tzh.tzh_magic);
+ tzh.tzh_version[0] = ZIC_VERSION;
+ convert(eitol(thistypecnt), tzh.tzh_ttisgmtcnt);
+ convert(eitol(thistypecnt), tzh.tzh_ttisstdcnt);
+ convert(eitol(thisleapcnt), tzh.tzh_leapcnt);
+ convert(eitol(thistimecnt), tzh.tzh_timecnt);
+ convert(eitol(thistypecnt), tzh.tzh_typecnt);
+ convert(eitol(thischarcnt), tzh.tzh_charcnt);
+ DO(tzh_magic);
+ DO(tzh_version);
+ DO(tzh_reserved);
+ DO(tzh_ttisgmtcnt);
+ DO(tzh_ttisstdcnt);
+ DO(tzh_leapcnt);
+ DO(tzh_timecnt);
+ DO(tzh_typecnt);
+ DO(tzh_charcnt);
+#undef DO
+ for (i = thistimei; i < thistimelim; ++i)
+ if (pass == 1)
+ puttzcode((long) ats[i], fp);
+ else puttzcode64(ats[i], fp);
+ for (i = thistimei; i < thistimelim; ++i) {
+ unsigned char uc;
+
+ uc = typemap[types[i]];
+ (void) fwrite((void *) &uc,
+ (size_t) sizeof uc,
+ (size_t) 1,
+ fp);
+ }
+ for (i = 0; i < typecnt; ++i)
+ if (writetype[i]) {
+ puttzcode(gmtoffs[i], fp);
+ (void) putc(isdsts[i], fp);
+ (void) putc((unsigned char) indmap[abbrinds[i]], fp);
}
- puttzcode((long) tadd(trans[i], -gmtoffs[j]), fp);
- } else puttzcode((long) trans[i], fp);
- puttzcode((long) corr[i], fp);
- }
- for (i = 0; i < typecnt; ++i)
- (void) putc(ttisstds[i], fp);
- for (i = 0; i < typecnt; ++i)
- (void) putc(ttisgmts[i], fp);
+ if (thischarcnt != 0)
+ (void) fwrite((void *) thischars,
+ (size_t) sizeof thischars[0],
+ (size_t) thischarcnt, fp);
+ for (i = thisleapi; i < thisleaplim; ++i) {
+ register zic_t todo;
+
+ if (roll[i]) {
+ if (timecnt == 0 || trans[i] < ats[0]) {
+ j = 0;
+ while (isdsts[j])
+ if (++j >= typecnt) {
+ j = 0;
+ break;
+ }
+ } else {
+ j = 1;
+ while (j < timecnt &&
+ trans[i] >= ats[j])
+ ++j;
+ j = types[j - 1];
+ }
+ todo = tadd(trans[i], -gmtoffs[j]);
+ } else todo = trans[i];
+ if (pass == 1)
+ puttzcode((long) todo, fp);
+ else puttzcode64(todo, fp);
+ puttzcode(corr[i], fp);
+ }
+ for (i = 0; i < typecnt; ++i)
+ if (writetype[i])
+ (void) putc(ttisstds[i], fp);
+ for (i = 0; i < typecnt; ++i)
+ if (writetype[i])
+ (void) putc(ttisgmts[i], fp);
+ }
+ (void) fprintf(fp, "\n%s\n", string);
if (ferror(fp) || fclose(fp)) {
(void) fprintf(stderr, _("%s: Error writing %s\n"),
progname, fullname);
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
}
static void
-doabbr(abbr, format, letters, isdst)
+doabbr(abbr, format, letters, isdst, doquotes)
char * const abbr;
const char * const format;
const char * const letters;
const int isdst;
+const int doquotes;
{
- if (strchr(format, '/') == NULL) {
+ register char * cp;
+ register char * slashp;
+ register int len;
+
+ slashp = strchr(format, '/');
+ if (slashp == NULL) {
if (letters == NULL)
(void) strcpy(abbr, format);
else (void) sprintf(abbr, format, letters);
- } else if (isdst)
- (void) strcpy(abbr, strchr(format, '/') + 1);
- else {
- (void) strcpy(abbr, format);
- *strchr(abbr, '/') = '\0';
+ } else if (isdst) {
+ (void) strcpy(abbr, slashp + 1);
+ } else {
+ if (slashp > format)
+ (void) strncpy(abbr, format,
+ (unsigned) (slashp - format));
+ abbr[slashp - format] = '\0';
+ }
+ if (!doquotes)
+ return;
+ for (cp = abbr; *cp != '\0'; ++cp)
+ if (strchr("ABCDEFGHIJKLMNOPQRSTUVWXYZ", *cp) == NULL &&
+ strchr("abcdefghijklmnopqrstuvwxyz", *cp) == NULL)
+ break;
+ len = strlen(abbr);
+ if (len > 0 && *cp == '\0')
+ return;
+ abbr[len + 2] = '\0';
+ abbr[len + 1] = '>';
+ for ( ; len > 0; --len)
+ abbr[len] = abbr[len - 1];
+ abbr[0] = '<';
+}
+
+static void
+updateminmax(x)
+const int x;
+{
+ if (min_year > x)
+ min_year = x;
+ if (max_year < x)
+ max_year = x;
+}
+
+static int
+stringoffset(result, offset)
+char * result;
+long offset;
+{
+ register int hours;
+ register int minutes;
+ register int seconds;
+
+ result[0] = '\0';
+ if (offset < 0) {
+ (void) strcpy(result, "-");
+ offset = -offset;
+ }
+ seconds = offset % SECSPERMIN;
+ offset /= SECSPERMIN;
+ minutes = offset % MINSPERHOUR;
+ offset /= MINSPERHOUR;
+ hours = offset;
+ if (hours >= HOURSPERDAY) {
+ result[0] = '\0';
+ return -1;
+ }
+ (void) sprintf(end(result), "%d", hours);
+ if (minutes != 0 || seconds != 0) {
+ (void) sprintf(end(result), ":%02d", minutes);
+ if (seconds != 0)
+ (void) sprintf(end(result), ":%02d", seconds);
+ }
+ return 0;
+}
+
+static int
+stringrule(result, rp, dstoff, gmtoff)
+char * result;
+const struct rule * const rp;
+const long dstoff;
+const long gmtoff;
+{
+ register long tod;
+
+ result = end(result);
+ if (rp->r_dycode == DC_DOM) {
+ register int month, total;
+
+ if (rp->r_dayofmonth == 29 && rp->r_month == TM_FEBRUARY)
+ return -1;
+ total = 0;
+ for (month = 0; month < rp->r_month; ++month)
+ total += len_months[0][month];
+ (void) sprintf(result, "J%d", total + rp->r_dayofmonth);
+ } else {
+ register int week;
+
+ if (rp->r_dycode == DC_DOWGEQ) {
+ week = 1 + rp->r_dayofmonth / DAYSPERWEEK;
+ if ((week - 1) * DAYSPERWEEK + 1 != rp->r_dayofmonth)
+ return -1;
+ } else if (rp->r_dycode == DC_DOWLEQ) {
+ if (rp->r_dayofmonth == len_months[1][rp->r_month])
+ week = 5;
+ else {
+ week = 1 + rp->r_dayofmonth / DAYSPERWEEK;
+ if (week * DAYSPERWEEK - 1 != rp->r_dayofmonth)
+ return -1;
+ }
+ } else return -1; /* "cannot happen" */
+ (void) sprintf(result, "M%d.%d.%d",
+ rp->r_month + 1, week, rp->r_wday);
+ }
+ tod = rp->r_tod;
+ if (rp->r_todisgmt)
+ tod += gmtoff;
+ if (rp->r_todisstd && rp->r_stdoff == 0)
+ tod += dstoff;
+ if (tod < 0) {
+ result[0] = '\0';
+ return -1;
+ }
+ if (tod != 2 * SECSPERMIN * MINSPERHOUR) {
+ (void) strcat(result, "/");
+ if (stringoffset(end(result), tod) != 0)
+ return -1;
+ }
+ return 0;
+}
+
+static void
+stringzone(result, zpfirst, zonecount)
+char * result;
+const struct zone * const zpfirst;
+const int zonecount;
+{
+ register const struct zone * zp;
+ register struct rule * rp;
+ register struct rule * stdrp;
+ register struct rule * dstrp;
+ register int i;
+ register const char * abbrvar;
+
+ result[0] = '\0';
+ zp = zpfirst + zonecount - 1;
+ stdrp = dstrp = NULL;
+ for (i = 0; i < zp->z_nrules; ++i) {
+ rp = &zp->z_rules[i];
+ if (rp->r_hiwasnum || rp->r_hiyear != INT_MAX)
+ continue;
+ if (rp->r_yrtype != NULL)
+ continue;
+ if (rp->r_stdoff == 0) {
+ if (stdrp == NULL)
+ stdrp = rp;
+ else return;
+ } else {
+ if (dstrp == NULL)
+ dstrp = rp;
+ else return;
+ }
+ }
+ if (stdrp == NULL && dstrp == NULL) {
+ /*
+ ** There are no rules running through "max".
+ ** Let's find the latest rule.
+ */
+ for (i = 0; i < zp->z_nrules; ++i) {
+ rp = &zp->z_rules[i];
+ if (stdrp == NULL || rp->r_hiyear > stdrp->r_hiyear ||
+ (rp->r_hiyear == stdrp->r_hiyear &&
+ rp->r_month > stdrp->r_month))
+ stdrp = rp;
+ }
+ if (stdrp != NULL && stdrp->r_stdoff != 0)
+ return; /* We end up in DST (a POSIX no-no). */
+ /*
+ ** Horrid special case: if year is 2037,
+ ** presume this is a zone handled on a year-by-year basis;
+ ** do not try to apply a rule to the zone.
+ */
+ if (stdrp != NULL && stdrp->r_hiyear == 2037)
+ return;
+ }
+ if (stdrp == NULL && zp->z_nrules != 0)
+ return;
+ abbrvar = (stdrp == NULL) ? "" : stdrp->r_abbrvar;
+ doabbr(result, zp->z_format, abbrvar, FALSE, TRUE);
+ if (stringoffset(end(result), -zp->z_gmtoff) != 0) {
+ result[0] = '\0';
+ return;
+ }
+ if (dstrp == NULL)
+ return;
+ doabbr(end(result), zp->z_format, dstrp->r_abbrvar, TRUE, TRUE);
+ if (dstrp->r_stdoff != SECSPERMIN * MINSPERHOUR)
+ if (stringoffset(end(result),
+ -(zp->z_gmtoff + dstrp->r_stdoff)) != 0) {
+ result[0] = '\0';
+ return;
+ }
+ (void) strcat(result, ",");
+ if (stringrule(result, dstrp, dstrp->r_stdoff, zp->z_gmtoff) != 0) {
+ result[0] = '\0';
+ return;
+ }
+ (void) strcat(result, ",");
+ if (stringrule(result, stdrp, dstrp->r_stdoff, zp->z_gmtoff) != 0) {
+ result[0] = '\0';
+ return;
}
}
@@ -1592,7 +1959,7 @@ const int zonecount;
register struct rule * rp;
register int i, j;
register int usestart, useuntil;
- register time_t starttime, untiltime;
+ register zic_t starttime, untiltime;
register long gmtoff;
register long stdoff;
register int year;
@@ -1600,8 +1967,17 @@ const int zonecount;
register int startttisstd;
register int startttisgmt;
register int type;
- char startbuf[BUFSIZ];
-
+ register char * startbuf;
+ register char * ab;
+ register char * envvar;
+ register int max_abbr_len;
+ register int max_envvar_len;
+
+ max_abbr_len = 2 + max_format_len + max_abbrvar_len;
+ max_envvar_len = 2 * max_abbr_len + 5 * 9;
+ startbuf = emalloc(max_abbr_len + 1);
+ ab = emalloc(max_abbr_len + 1);
+ envvar = emalloc(max_envvar_len + 1);
INITIALIZE(untiltime);
INITIALIZE(starttime);
/*
@@ -1611,11 +1987,57 @@ const int zonecount;
typecnt = 0;
charcnt = 0;
/*
- ** Thanks to Earl Chew (earl@dnd.icp.nec.com.au)
+ ** Thanks to Earl Chew
** for noting the need to unconditionally initialize startttisstd.
*/
startttisstd = FALSE;
startttisgmt = FALSE;
+ min_year = max_year = EPOCH_YEAR;
+ if (leapseen) {
+ updateminmax(leapminyear);
+ updateminmax(leapmaxyear + (leapmaxyear < INT_MAX));
+ }
+ for (i = 0; i < zonecount; ++i) {
+ zp = &zpfirst[i];
+ if (i < zonecount - 1)
+ updateminmax(zp->z_untilrule.r_loyear);
+ for (j = 0; j < zp->z_nrules; ++j) {
+ rp = &zp->z_rules[j];
+ if (rp->r_lowasnum)
+ updateminmax(rp->r_loyear);
+ if (rp->r_hiwasnum)
+ updateminmax(rp->r_hiyear);
+ }
+ }
+ /*
+ ** Generate lots of data if a rule can't cover all future times.
+ */
+ stringzone(envvar, zpfirst, zonecount);
+ if (noise && envvar[0] == '\0') {
+ register char * wp;
+
+wp = ecpyalloc(_("no POSIX environment variable for zone"));
+ wp = ecatalloc(wp, " ");
+ wp = ecatalloc(wp, zpfirst->z_name);
+ warning(wp);
+ ifree(wp);
+ }
+ if (envvar[0] == '\0') {
+ if (min_year >= INT_MIN + YEARSPERREPEAT)
+ min_year -= YEARSPERREPEAT;
+ else min_year = INT_MIN;
+ if (max_year <= INT_MAX - YEARSPERREPEAT)
+ max_year += YEARSPERREPEAT;
+ else max_year = INT_MAX;
+ }
+ /*
+ ** For the benefit of older systems,
+ ** generate data from 1900 through 2037.
+ */
+ if (min_year > 1900)
+ min_year = 1900;
+ if (max_year < 2037)
+ max_year = 2037;
for (i = 0; i < zonecount; ++i) {
/*
** A guess that may well be corrected later.
@@ -1633,7 +2055,7 @@ const int zonecount;
if (zp->z_nrules == 0) {
stdoff = zp->z_stdoff;
doabbr(startbuf, zp->z_format,
- (char *) NULL, stdoff != 0);
+ (char *) NULL, stdoff != 0, FALSE);
type = addtype(oadd(zp->z_gmtoff, stdoff),
startbuf, stdoff != 0, startttisstd,
startttisgmt);
@@ -1661,9 +2083,8 @@ const int zonecount;
}
for ( ; ; ) {
register int k;
- register time_t jtime, ktime;
+ register zic_t jtime, ktime;
register long offset;
- char buf[BUFSIZ];
INITIALIZE(ktime);
if (useuntil) {
@@ -1719,23 +2140,27 @@ const int zonecount;
stdoff);
doabbr(startbuf, zp->z_format,
rp->r_abbrvar,
- rp->r_stdoff != 0);
+ rp->r_stdoff != 0,
+ FALSE);
continue;
}
if (*startbuf == '\0' &&
- startoff == oadd(zp->z_gmtoff,
- stdoff)) {
- doabbr(startbuf, zp->z_format,
- rp->r_abbrvar,
- rp->r_stdoff != 0);
+ startoff == oadd(zp->z_gmtoff,
+ stdoff)) {
+ doabbr(startbuf,
+ zp->z_format,
+ rp->r_abbrvar,
+ rp->r_stdoff !=
+ 0,
+ FALSE);
}
}
eats(zp->z_filename, zp->z_linenum,
rp->r_filename, rp->r_linenum);
- doabbr(buf, zp->z_format, rp->r_abbrvar,
- rp->r_stdoff != 0);
+ doabbr(ab, zp->z_format, rp->r_abbrvar,
+ rp->r_stdoff != 0, FALSE);
offset = oadd(zp->z_gmtoff, rp->r_stdoff);
- type = addtype(offset, buf, rp->r_stdoff != 0,
+ type = addtype(offset, ab, rp->r_stdoff != 0,
rp->r_todisstd, rp->r_todisgmt);
addtt(ktime, type);
}
@@ -1768,12 +2193,15 @@ error(_("can't determine time zone abbreviation to use just after until time"));
starttime = tadd(starttime, -gmtoff);
}
}
- writezone(zpfirst->z_name);
+ writezone(zpfirst->z_name, envvar);
+ ifree(startbuf);
+ ifree(ab);
+ ifree(envvar);
}
static void
addtt(starttime, type)
-const time_t starttime;
+const zic_t starttime;
int type;
{
if (starttime <= min_time ||
@@ -1792,7 +2220,7 @@ int type;
}
if (timecnt >= TZ_MAX_TIMES) {
error(_("too many transitions?!"));
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
attypes[timecnt].at = starttime;
attypes[timecnt].type = type;
@@ -1811,15 +2239,15 @@ const int ttisgmt;
if (isdst != TRUE && isdst != FALSE) {
error(_("internal error - addtype called with bad isdst"));
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
if (ttisstd != TRUE && ttisstd != FALSE) {
error(_("internal error - addtype called with bad ttisstd"));
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
if (ttisgmt != TRUE && ttisgmt != FALSE) {
error(_("internal error - addtype called with bad ttisgmt"));
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
/*
** See if there's already an entry for this zone type.
@@ -1838,7 +2266,11 @@ const int ttisgmt;
*/
if (typecnt >= TZ_MAX_TYPES) {
error(_("too many local time types"));
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
+ }
+ if (! (-1L - 2147483647L <= gmtoff && gmtoff <= 2147483647L)) {
+ error(_("UTC offset out of range"));
+ exit(EXIT_FAILURE);
}
gmtoffs[i] = gmtoff;
isdsts[i] = isdst;
@@ -1857,7 +2289,7 @@ const int ttisgmt;
static void
leapadd(t, positive, rolling, count)
-const time_t t;
+const zic_t t;
const int positive;
const int rolling;
int count;
@@ -1866,13 +2298,13 @@ int count;
if (leapcnt + (positive ? count : 1) > TZ_MAX_LEAPS) {
error(_("too many leap seconds"));
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
for (i = 0; i < leapcnt; ++i)
if (t <= trans[i]) {
if (t == trans[i]) {
error(_("repeated leap second moment"));
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
break;
}
@@ -1890,7 +2322,7 @@ int count;
}
static void
-adjleap P((void))
+adjleap(void)
{
register int i;
register long last = 0;
@@ -1927,7 +2359,7 @@ const char * const type;
(void) fprintf(stderr, _("%s: command was '%s', result was %d\n"),
progname, buf, result);
for ( ; ; )
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
static int
@@ -2008,8 +2440,9 @@ register char * cp;
emalloc((int) ((strlen(cp) + 1) * sizeof *array));
nsubs = 0;
for ( ; ; ) {
- while (isascii(*cp) && isspace((unsigned char) *cp))
- ++cp;
+ while (isascii((unsigned char) *cp) &&
+ isspace((unsigned char) *cp))
+ ++cp;
if (*cp == '\0' || *cp == '#')
break;
array[nsubs++] = dp = cp;
@@ -2019,7 +2452,12 @@ register char * cp;
else while ((*dp = *cp++) != '"')
if (*dp != '\0')
++dp;
- else error(_("Odd number of quotation marks"));
+ else {
+ error(_(
+ "Odd number of quotation marks"
+ ));
+ exit(1);
+ }
} while (*cp != '\0' && *cp != '#' &&
(!isascii(*cp) || !isspace((unsigned char) *cp)));
if (isascii(*cp) && isspace((unsigned char) *cp))
@@ -2040,17 +2478,17 @@ const long t2;
t = t1 + t2;
if ((t2 > 0 && t <= t1) || (t2 < 0 && t >= t1)) {
error(_("time overflow"));
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
return t;
}
-static time_t
+static zic_t
tadd(t1, t2)
-const time_t t1;
+const zic_t t1;
const long t2;
{
- register time_t t;
+ register zic_t t;
if (t1 == max_time && t2 > 0)
return max_time;
@@ -2059,7 +2497,7 @@ const long t2;
t = t1 + t2;
if ((t2 > 0 && t <= t1) || (t2 < 0 && t >= t1)) {
error(_("time overflow"));
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
return t;
}
@@ -2069,14 +2507,14 @@ const long t2;
** 1970, 00:00 LOCAL time - in that year that the rule refers to.
*/
-static time_t
+static zic_t
rpytime(rp, wantedy)
register const struct rule * const rp;
register const int wantedy;
{
register int y, m, i;
register long dayoff; /* with a nod to Margaret O. */
- register time_t t;
+ register zic_t t;
if (wantedy == INT_MIN)
return min_time;
@@ -2106,7 +2544,7 @@ register const int wantedy;
--i;
else {
error(_("use of 2/29 in non leap-year"));
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
}
--i;
@@ -2140,16 +2578,15 @@ register const int wantedy;
}
if (i < 0 || i >= len_months[isleap(y)][m]) {
if (noise)
- warning(_("rule goes past start/end of month--will not work with pre-2004 versions of zic"));
+ warning(_("rule goes past start/end of month--\
+will not work with pre-2004 versions of zic"));
}
}
- if (dayoff < 0 && !TYPE_SIGNED(time_t))
- return min_time;
if (dayoff < min_time / SECSPERDAY)
return min_time;
if (dayoff > max_time / SECSPERDAY)
return max_time;
- t = (time_t) dayoff * SECSPERDAY;
+ t = (zic_t) dayoff * SECSPERDAY;
return tadd(t, rp->r_tod);
}
@@ -2159,10 +2596,48 @@ const char * const string;
{
register int i;
+ if (strcmp(string, GRANDPARENTED) != 0) {
+ register const char * cp;
+ register char * wp;
+
+ /*
+ ** Want one to ZIC_MAX_ABBR_LEN_WO_WARN alphabetics
+ ** optionally followed by a + or - and a number from 1 to 14.
+ */
+ cp = string;
+ wp = NULL;
+ while (isascii((unsigned char) *cp) &&
+ isalpha((unsigned char) *cp))
+ ++cp;
+ if (cp - string == 0)
+wp = _("time zone abbreviation lacks alphabetic at start");
+ if (noise && cp - string > 3)
+wp = _("time zone abbreviation has more than 3 alphabetics");
+ if (cp - string > ZIC_MAX_ABBR_LEN_WO_WARN)
+wp = _("time zone abbreviation has too many 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 = _("time zone abbreviation differs from POSIX standard");
+ if (wp != NULL) {
+ wp = ecpyalloc(wp);
+ wp = ecatalloc(wp, " (");
+ wp = ecatalloc(wp, string);
+ wp = ecatalloc(wp, ")");
+ warning(wp);
+ ifree(wp);
+ }
+ }
i = strlen(string) + 1;
if (charcnt + i > TZ_MAX_CHARS) {
error(_("too many, or too long, time zone abbreviations"));
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
(void) strcpy(&chars[charcnt], string);
charcnt += eitol(i);
@@ -2170,7 +2645,7 @@ const char * const string;
static int
mkdirs(argname)
-char * const argname;
+char * argname;
{
register char * name;
register char * cp;
@@ -2226,7 +2701,7 @@ const int i;
(void) fprintf(stderr,
_("%s: %d did not sign extend correctly\n"),
progname, i);
- (void) exit(EXIT_FAILURE);
+ exit(EXIT_FAILURE);
}
return l;
}