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-rw-r--r--usr.sbin/zic/zic.c2723
1 files changed, 0 insertions, 2723 deletions
diff --git a/usr.sbin/zic/zic.c b/usr.sbin/zic/zic.c
deleted file mode 100644
index 7670056..0000000
--- a/usr.sbin/zic/zic.c
+++ /dev/null
@@ -1,2723 +0,0 @@
-/*
-** This file is in the public domain, so clarified as of
-** 2006-07-17 by Arthur David Olson.
-*/
-
-static const char elsieid[] = "@(#)zic.c 8.20";
-
-#ifndef lint
-static const char rcsid[] =
- "$FreeBSD$";
-#endif /* not lint */
-
-#include "private.h"
-#include "tzfile.h"
-#include <err.h>
-#include <locale.h>
-#include <sys/stat.h> /* for umask manifest constants */
-#include <sys/types.h>
-#include <unistd.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 */
-
-#define MKDIR_UMASK (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH)
-
-/*
-** On some ancient hosts, predicates like `isspace(C)' are defined
-** 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.
-** If isascii is not defined, the isascii check succeeds trivially.
-*/
-#include "ctype.h"
-#ifndef isascii
-#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;
- const char * r_name;
-
- 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 */
-
- int r_dycode; /* see below */
- int r_dayofmonth;
- int r_wday;
-
- long r_tod; /* time from midnight */
- int r_todisstd; /* above is standard time if TRUE */
- /* or wall clock time if FALSE */
- int r_todisgmt; /* above is GMT if TRUE */
- /* or local time if FALSE */
- long r_stdoff; /* offset from standard time */
- const char * r_abbrvar; /* variable part of abbreviation */
-
- int r_todo; /* a rule to do (used in outzone) */
- zic_t r_temp; /* used in outzone */
-};
-
-/*
-** r_dycode r_dayofmonth r_wday
-*/
-
-#define DC_DOM 0 /* 1..31 */ /* unused */
-#define DC_DOWGEQ 1 /* 1..31 */ /* 0..6 (Sun..Sat) */
-#define DC_DOWLEQ 2 /* 1..31 */ /* 0..6 (Sun..Sat) */
-
-struct zone {
- const char * z_filename;
- int z_linenum;
-
- const char * z_name;
- long z_gmtoff;
- const char * z_rule;
- const char * z_format;
-
- long z_stdoff;
-
- struct rule * z_rules;
- int z_nrules;
-
- struct rule z_untilrule;
- zic_t z_untiltime;
-};
-
-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 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 void setgroup(gid_t *flag, const char *name);
-static void setuser(uid_t *flag, const char *name);
-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 int max_abbrvar_len;
-static int max_format_len;
-static zic_t max_time;
-static int max_year;
-static zic_t min_time;
-static int min_year;
-static zic_t min_time;
-static int noise;
-static const char * rfilename;
-static int rlinenum;
-static int timecnt;
-static int typecnt;
-
-/*
-** Line codes.
-*/
-
-#define LC_RULE 0
-#define LC_ZONE 1
-#define LC_LINK 2
-#define LC_LEAP 3
-
-/*
-** Which fields are which on a Zone line.
-*/
-
-#define ZF_NAME 1
-#define ZF_GMTOFF 2
-#define ZF_RULE 3
-#define ZF_FORMAT 4
-#define ZF_TILYEAR 5
-#define ZF_TILMONTH 6
-#define ZF_TILDAY 7
-#define ZF_TILTIME 8
-#define ZONE_MINFIELDS 5
-#define ZONE_MAXFIELDS 9
-
-/*
-** Which fields are which on a Zone continuation line.
-*/
-
-#define ZFC_GMTOFF 0
-#define ZFC_RULE 1
-#define ZFC_FORMAT 2
-#define ZFC_TILYEAR 3
-#define ZFC_TILMONTH 4
-#define ZFC_TILDAY 5
-#define ZFC_TILTIME 6
-#define ZONEC_MINFIELDS 3
-#define ZONEC_MAXFIELDS 7
-
-/*
-** Which files are which on a Rule line.
-*/
-
-#define RF_NAME 1
-#define RF_LOYEAR 2
-#define RF_HIYEAR 3
-#define RF_COMMAND 4
-#define RF_MONTH 5
-#define RF_DAY 6
-#define RF_TOD 7
-#define RF_STDOFF 8
-#define RF_ABBRVAR 9
-#define RULE_FIELDS 10
-
-/*
-** Which fields are which on a Link line.
-*/
-
-#define LF_FROM 1
-#define LF_TO 2
-#define LINK_FIELDS 3
-
-/*
-** Which fields are which on a Leap line.
-*/
-
-#define LP_YEAR 1
-#define LP_MONTH 2
-#define LP_DAY 3
-#define LP_TIME 4
-#define LP_CORR 5
-#define LP_ROLL 6
-#define LEAP_FIELDS 7
-
-/*
-** Year synonyms.
-*/
-
-#define YR_MINIMUM 0
-#define YR_MAXIMUM 1
-#define YR_ONLY 2
-
-static struct rule * rules;
-static int nrules; /* number of rules */
-
-static struct zone * zones;
-static int nzones; /* number of zones */
-
-struct link {
- const char * l_filename;
- int l_linenum;
- const char * l_from;
- const char * l_to;
-};
-
-static struct link * links;
-static int nlinks;
-
-struct lookup {
- const char * l_word;
- const int l_value;
-};
-
-static struct lookup const * byword(const char * string,
- const struct lookup * lp);
-
-static struct lookup const line_codes[] = {
- { "Rule", LC_RULE },
- { "Zone", LC_ZONE },
- { "Link", LC_LINK },
- { "Leap", LC_LEAP },
- { NULL, 0}
-};
-
-static struct lookup const mon_names[] = {
- { "January", TM_JANUARY },
- { "February", TM_FEBRUARY },
- { "March", TM_MARCH },
- { "April", TM_APRIL },
- { "May", TM_MAY },
- { "June", TM_JUNE },
- { "July", TM_JULY },
- { "August", TM_AUGUST },
- { "September", TM_SEPTEMBER },
- { "October", TM_OCTOBER },
- { "November", TM_NOVEMBER },
- { "December", TM_DECEMBER },
- { NULL, 0 }
-};
-
-static struct lookup const wday_names[] = {
- { "Sunday", TM_SUNDAY },
- { "Monday", TM_MONDAY },
- { "Tuesday", TM_TUESDAY },
- { "Wednesday", TM_WEDNESDAY },
- { "Thursday", TM_THURSDAY },
- { "Friday", TM_FRIDAY },
- { "Saturday", TM_SATURDAY },
- { NULL, 0 }
-};
-
-static struct lookup const lasts[] = {
- { "last-Sunday", TM_SUNDAY },
- { "last-Monday", TM_MONDAY },
- { "last-Tuesday", TM_TUESDAY },
- { "last-Wednesday", TM_WEDNESDAY },
- { "last-Thursday", TM_THURSDAY },
- { "last-Friday", TM_FRIDAY },
- { "last-Saturday", TM_SATURDAY },
- { NULL, 0 }
-};
-
-static struct lookup const begin_years[] = {
- { "minimum", YR_MINIMUM },
- { "maximum", YR_MAXIMUM },
- { NULL, 0 }
-};
-
-static struct lookup const end_years[] = {
- { "minimum", YR_MINIMUM },
- { "maximum", YR_MAXIMUM },
- { "only", YR_ONLY },
- { NULL, 0 }
-};
-
-static struct lookup const leap_types[] = {
- { "Rolling", TRUE },
- { "Stationary", FALSE },
- { NULL, 0 }
-};
-
-static const int len_months[2][MONSPERYEAR] = {
- { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
- { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
-};
-
-static const int len_years[2] = {
- DAYSPERNYEAR, DAYSPERLYEAR
-};
-
-static struct attype {
- zic_t at;
- unsigned char type;
-} attypes[TZ_MAX_TIMES];
-static long gmtoffs[TZ_MAX_TYPES];
-static char isdsts[TZ_MAX_TYPES];
-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 zic_t trans[TZ_MAX_LEAPS];
-static long corr[TZ_MAX_LEAPS];
-static char roll[TZ_MAX_LEAPS];
-
-/*
-** Memory allocation.
-*/
-
-static char *
-memcheck(ptr)
-char * const ptr;
-{
- if (ptr == NULL)
- errx(EXIT_FAILURE, _("memory exhausted"));
- return ptr;
-}
-
-#define emalloc(size) memcheck(imalloc(size))
-#define erealloc(ptr, size) memcheck(irealloc((ptr), (size)))
-#define ecpyalloc(ptr) memcheck(icpyalloc(ptr))
-#define ecatalloc(oldp, newp) memcheck(icatalloc((oldp), (newp)))
-
-/*
-** Error handling.
-*/
-
-static void
-eats(name, num, rname, rnum)
-const char * const name;
-const int num;
-const char * const rname;
-const int rnum;
-{
- filename = name;
- linenum = num;
- rfilename = rname;
- rlinenum = rnum;
-}
-
-static void
-eat(name, num)
-const char * const name;
-const int num;
-{
- eats(name, num, (char *) NULL, -1);
-}
-
-static void
-error(string)
-const char * const string;
-{
- /*
- ** Match the format of "cc" to allow sh users to
- ** zic ... 2>&1 | error -t "*" -v
- ** on BSD systems.
- */
- (void) fprintf(stderr, _("\"%s\", line %d: %s"),
- filename, linenum, string);
- if (rfilename != NULL)
- (void) fprintf(stderr, _(" (rule from \"%s\", line %d)"),
- rfilename, rlinenum);
- (void) fprintf(stderr, "\n");
- ++errors;
-}
-
-static void
-warning(string)
-const char * const string;
-{
- char * cp;
-
- cp = ecpyalloc(_("warning: "));
- cp = ecatalloc(cp, string);
- error(cp);
- ifree(cp);
- --errors;
-}
-
-static void
-usage(FILE *stream, int status)
- {
- (void) fprintf(stream, _("usage is zic \
-[ --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"));
- exit(status);
-}
-
-static const char * psxrules;
-static const char * lcltime;
-static const char * directory;
-static const char * leapsec;
-static const char * yitcommand;
-static int Dflag;
-static uid_t uflag = (uid_t)-1;
-static gid_t gflag = (gid_t)-1;
-static mode_t mflag = (S_IRUSR | S_IRGRP | S_IROTH
- | S_IWUSR);
-
-int
-main(argc, argv)
-int argc;
-char * argv[];
-{
- register int i;
- register int j;
- register int c;
-
-#ifdef unix
- (void) umask(umask(S_IWGRP | S_IWOTH) | (S_IWGRP | S_IWOTH));
-#endif /* defined unix */
-#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 */
- if (TYPE_BIT(zic_t) < 64) {
- (void) fprintf(stderr, "zic: %s\n",
- _("wild compilation-time specification of zic_t"));
- exit(EXIT_FAILURE);
- }
- 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);
- }
- while ((c = getopt(argc, argv, "Dd:g:l:m:p:L:u:vsy:")) != -1)
- switch (c) {
- default:
- usage(stderr, EXIT_FAILURE);
- case 'D':
- Dflag = 1;
- break;
- case 'd':
- if (directory == NULL)
- directory = optarg;
- else
- errx(EXIT_FAILURE,
-_("more than one -d option specified"));
- break;
- case 'g':
- setgroup(&gflag, optarg);
- break;
- case 'l':
- if (lcltime == NULL)
- lcltime = optarg;
- else
- errx(EXIT_FAILURE,
-_("more than one -l option specified"));
- break;
- case 'm':
- {
- void *set = setmode(optarg);
- if (set == NULL)
- errx(EXIT_FAILURE,
-_("invalid file mode"));
- mflag = getmode(set, mflag);
- free(set);
- break;
- }
- case 'p':
- if (psxrules == NULL)
- psxrules = optarg;
- else
- errx(EXIT_FAILURE,
-_("more than one -p option specified"));
- break;
- case 'u':
- setuser(&uflag, optarg);
- break;
- case 'y':
- if (yitcommand == NULL)
- yitcommand = optarg;
- else
- errx(EXIT_FAILURE,
-_("more than one -y option specified"));
- break;
- case 'L':
- if (leapsec == NULL)
- leapsec = optarg;
- else
- errx(EXIT_FAILURE,
-_("more than one -L option specified"));
- break;
- case 'v':
- noise = TRUE;
- break;
- case 's':
- (void) printf("zic: -s ignored\n");
- break;
- }
- if (optind == argc - 1 && strcmp(argv[optind], "=") == 0)
- usage(stderr, EXIT_FAILURE); /* usage message by request */
- if (directory == NULL)
- directory = TZDIR;
- if (yitcommand == NULL)
- yitcommand = "yearistype";
-
- setboundaries();
-
- if (optind < argc && leapsec != NULL) {
- infile(leapsec);
- adjleap();
- }
-
- for (i = optind; i < argc; ++i)
- infile(argv[i]);
- if (errors)
- exit(EXIT_FAILURE);
- associate();
- for (i = 0; i < nzones; i = j) {
- /*
- ** Find the next non-continuation zone entry.
- */
- for (j = i + 1; j < nzones && zones[j].z_name == NULL; ++j)
- continue;
- outzone(&zones[i], j - i);
- }
- /*
- ** Make links.
- */
- 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);
- dolink(lcltime, TZDEFAULT);
- }
- if (psxrules != NULL) {
- eat("command line", 1);
- dolink(psxrules, TZDEFRULES);
- }
- return (errors == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
-}
-
-static void
-dolink(fromfield, tofield)
-const char * const fromfield;
-const char * const tofield;
-{
- register char * fromname;
- register char * toname;
-
- if (fromfield[0] == '/')
- fromname = ecpyalloc(fromfield);
- else {
- fromname = ecpyalloc(directory);
- fromname = ecatalloc(fromname, "/");
- fromname = ecatalloc(fromname, fromfield);
- }
- if (tofield[0] == '/')
- toname = ecpyalloc(tofield);
- else {
- toname = ecpyalloc(directory);
- toname = ecatalloc(toname, "/");
- toname = ecatalloc(toname, tofield);
- }
- /*
- ** We get to be careful here since
- ** there's a fair chance of root running us.
- */
- if (!itsdir(toname))
- (void) remove(toname);
- if (link(fromname, toname) != 0) {
- int result;
-
- if (mkdirs(toname) != 0)
- exit(EXIT_FAILURE);
-
- result = link(fromname, toname);
-#if HAVE_SYMLINK
- 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);
- }
-#endif /* HAVE_SYMLINK */
- if (result != 0) {
- err(EXIT_FAILURE, _("can't link from %s to %s"),
- fromname, toname);
- }
- }
- ifree(fromname);
- ifree(toname);
-}
-
-#define TIME_T_BITS_IN_FILE 64
-
-static void
-setboundaries (void)
-{
- 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
-itsdir(name)
-const char * const name;
-{
- register char * myname;
- register int accres;
-
- myname = ecpyalloc(name);
- myname = ecatalloc(myname, "/.");
- accres = access(myname, F_OK);
- ifree(myname);
- return accres == 0;
-}
-
-/*
-** Associate sets of rules with zones.
-*/
-
-/*
-** Sort by rule name.
-*/
-
-static int
-rcomp(cp1, cp2)
-const void * cp1;
-const void * cp2;
-{
- return strcmp(((const struct rule *) cp1)->r_name,
- ((const struct rule *) cp2)->r_name);
-}
-
-static void
-associate(void)
-{
- register struct zone * zp;
- register struct rule * rp;
- register int base, out;
- register int i, j;
-
- if (nrules != 0) {
- (void) qsort((void *) rules, (size_t) nrules,
- (size_t) sizeof *rules, rcomp);
- for (i = 0; i < nrules - 1; ++i) {
- if (strcmp(rules[i].r_name,
- rules[i + 1].r_name) != 0)
- continue;
- if (strcmp(rules[i].r_filename,
- rules[i + 1].r_filename) == 0)
- continue;
- eat(rules[i].r_filename, rules[i].r_linenum);
- warning(_("same rule name in multiple files"));
- eat(rules[i + 1].r_filename, rules[i + 1].r_linenum);
- warning(_("same rule name in multiple files"));
- for (j = i + 2; j < nrules; ++j) {
- if (strcmp(rules[i].r_name,
- rules[j].r_name) != 0)
- break;
- if (strcmp(rules[i].r_filename,
- rules[j].r_filename) == 0)
- continue;
- if (strcmp(rules[i + 1].r_filename,
- rules[j].r_filename) == 0)
- continue;
- break;
- }
- i = j - 1;
- }
- }
- for (i = 0; i < nzones; ++i) {
- zp = &zones[i];
- zp->z_rules = NULL;
- zp->z_nrules = 0;
- }
- for (base = 0; base < nrules; base = out) {
- rp = &rules[base];
- for (out = base + 1; out < nrules; ++out)
- if (strcmp(rp->r_name, rules[out].r_name) != 0)
- break;
- for (i = 0; i < nzones; ++i) {
- zp = &zones[i];
- if (strcmp(zp->z_rule, rp->r_name) != 0)
- continue;
- zp->z_rules = rp;
- zp->z_nrules = out - base;
- }
- }
- for (i = 0; i < nzones; ++i) {
- zp = &zones[i];
- if (zp->z_nrules == 0) {
- /*
- ** Maybe we have a local standard time offset.
- */
- eat(zp->z_filename, zp->z_linenum);
- zp->z_stdoff = gethms(zp->z_rule, _("unruly zone"),
- TRUE);
- /*
- ** Note, though, that if there's no rule,
- ** a '%s' in the format is a bad thing.
- */
- if (strchr(zp->z_format, '%') != 0)
- error(_("%s in ruleless zone"));
- }
- }
- if (errors)
- exit(EXIT_FAILURE);
-}
-
-static void
-infile(name)
-const char * name;
-{
- register FILE * fp;
- register char ** fields;
- register char * cp;
- register const struct lookup * lp;
- register int nfields;
- register int wantcont;
- register int num;
- char buf[BUFSIZ];
-
- if (strcmp(name, "-") == 0) {
- name = _("standard input");
- fp = stdin;
- } else if ((fp = fopen(name, "r")) == NULL)
- err(EXIT_FAILURE, _("can't open %s"), name);
- wantcont = FALSE;
- for (num = 1; ; ++num) {
- eat(name, num);
- if (fgets(buf, (int) sizeof buf, fp) != buf)
- break;
- cp = strchr(buf, '\n');
- if (cp == NULL) {
- error(_("line too long"));
- exit(EXIT_FAILURE);
- }
- *cp = '\0';
- fields = getfields(buf);
- nfields = 0;
- while (fields[nfields] != NULL) {
- static char nada;
-
- if (strcmp(fields[nfields], "-") == 0)
- fields[nfields] = &nada;
- ++nfields;
- }
- if (nfields == 0) {
- /* nothing to do */
- } else if (wantcont) {
- wantcont = inzcont(fields, nfields);
- } else {
- lp = byword(fields[0], line_codes);
- if (lp == NULL)
- error(_("input line of unknown type"));
- else switch ((int) (lp->l_value)) {
- case LC_RULE:
- inrule(fields, nfields);
- wantcont = FALSE;
- break;
- case LC_ZONE:
- wantcont = inzone(fields, nfields);
- break;
- case LC_LINK:
- inlink(fields, nfields);
- wantcont = FALSE;
- break;
- case LC_LEAP:
- if (name != leapsec)
- warnx(
-_("leap line in non leap seconds file %s"), name);
- else inleap(fields, nfields);
- wantcont = FALSE;
- break;
- default: /* "cannot happen" */
- errx(EXIT_FAILURE,
-_("panic: invalid l_value %d"), lp->l_value);
- }
- }
- ifree((char *) fields);
- }
- if (ferror(fp))
- errx(EXIT_FAILURE, _("error reading %s"), filename);
- if (fp != stdin && fclose(fp))
- err(EXIT_FAILURE, _("error closing %s"), filename);
- if (wantcont)
- error(_("expected continuation line not found"));
-}
-
-/*
-** Convert a string of one of the forms
-** h -h hh:mm -hh:mm hh:mm:ss -hh:mm:ss
-** into a number of seconds.
-** A null string maps to zero.
-** Call error with errstring and return zero on errors.
-*/
-
-static long
-gethms(string, errstring, signable)
-const char * string;
-const char * const errstring;
-const int signable;
-{
- long hh;
- int mm, ss, sign;
-
- if (string == NULL || *string == '\0')
- return 0;
- if (!signable)
- sign = 1;
- else if (*string == '-') {
- sign = -1;
- ++string;
- } else sign = 1;
- if (sscanf(string, scheck(string, "%ld"), &hh) == 1)
- mm = ss = 0;
- else if (sscanf(string, scheck(string, "%ld:%d"), &hh, &mm) == 2)
- ss = 0;
- else if (sscanf(string, scheck(string, "%ld:%d:%d"),
- &hh, &mm, &ss) != 3) {
- error(errstring);
- return 0;
- }
- if (hh < 0 ||
- mm < 0 || mm >= MINSPERHOUR ||
- ss < 0 || ss > SECSPERMIN) {
- error(errstring);
- return 0;
- }
- 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"));
- 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
-inrule(fields, nfields)
-register char ** const fields;
-const int nfields;
-{
- static struct rule r;
-
- if (nfields != RULE_FIELDS) {
- error(_("wrong number of fields on Rule line"));
- return;
- }
- if (*fields[RF_NAME] == '\0') {
- error(_("nameless rule"));
- return;
- }
- r.r_filename = filename;
- r.r_linenum = linenum;
- r.r_stdoff = gethms(fields[RF_STDOFF], _("invalid saved time"), TRUE);
- rulesub(&r, fields[RF_LOYEAR], fields[RF_HIYEAR], fields[RF_COMMAND],
- 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;
-}
-
-static int
-inzone(fields, nfields)
-register char ** const fields;
-const int nfields;
-{
- register int i;
- static char * buf;
-
- if (nfields < ZONE_MINFIELDS || nfields > ZONE_MAXFIELDS) {
- error(_("wrong number of fields on Zone line"));
- return FALSE;
- }
- if (strcmp(fields[ZF_NAME], TZDEFAULT) == 0 && lcltime != NULL) {
- buf = erealloc(buf, (int) (132 + strlen(TZDEFAULT)));
- (void) sprintf(buf,
-_("\"Zone %s\" line and -l option are mutually exclusive"),
- TZDEFAULT);
- error(buf);
- return FALSE;
- }
- if (strcmp(fields[ZF_NAME], TZDEFRULES) == 0 && psxrules != NULL) {
- buf = erealloc(buf, (int) (132 + strlen(TZDEFRULES)));
- (void) sprintf(buf,
-_("\"Zone %s\" line and -p option are mutually exclusive"),
- TZDEFRULES);
- error(buf);
- return FALSE;
- }
- for (i = 0; i < nzones; ++i)
- if (zones[i].z_name != NULL &&
- strcmp(zones[i].z_name, fields[ZF_NAME]) == 0) {
- buf = erealloc(buf, (int) (132 +
- strlen(fields[ZF_NAME]) +
- strlen(zones[i].z_filename)));
- (void) sprintf(buf,
-_("duplicate zone name %s (file \"%s\", line %d)"),
- fields[ZF_NAME],
- zones[i].z_filename,
- zones[i].z_linenum);
- error(buf);
- return FALSE;
- }
- return inzsub(fields, nfields, FALSE);
-}
-
-static int
-inzcont(fields, nfields)
-register char ** const fields;
-const int nfields;
-{
- if (nfields < ZONEC_MINFIELDS || nfields > ZONEC_MAXFIELDS) {
- error(_("wrong number of fields on Zone continuation line"));
- return FALSE;
- }
- return inzsub(fields, nfields, TRUE);
-}
-
-static int
-inzsub(fields, nfields, iscont)
-register char ** const fields;
-const int nfields;
-const int iscont;
-{
- register char * cp;
- static struct zone z;
- register int i_gmtoff, i_rule, i_format;
- register int i_untilyear, i_untilmonth;
- register int i_untilday, i_untiltime;
- register int hasuntil;
-
- if (iscont) {
- i_gmtoff = ZFC_GMTOFF;
- i_rule = ZFC_RULE;
- i_format = ZFC_FORMAT;
- i_untilyear = ZFC_TILYEAR;
- i_untilmonth = ZFC_TILMONTH;
- i_untilday = ZFC_TILDAY;
- i_untiltime = ZFC_TILTIME;
- z.z_name = NULL;
- } else {
- i_gmtoff = ZF_GMTOFF;
- i_rule = ZF_RULE;
- i_format = ZF_FORMAT;
- i_untilyear = ZF_TILYEAR;
- i_untilmonth = ZF_TILMONTH;
- i_untilday = ZF_TILDAY;
- i_untiltime = ZF_TILTIME;
- z.z_name = ecpyalloc(fields[ZF_NAME]);
- }
- z.z_filename = filename;
- z.z_linenum = linenum;
- z.z_gmtoff = gethms(fields[i_gmtoff], _("invalid UTC offset"), TRUE);
- if ((cp = strchr(fields[i_format], '%')) != 0) {
- if (*++cp != 's' || strchr(cp, '%') != 0) {
- error(_("invalid abbreviation format"));
- return FALSE;
- }
- }
- 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;
- z.z_untilrule.r_linenum = linenum;
- rulesub(&z.z_untilrule,
- fields[i_untilyear],
- "only",
- "",
- (nfields > i_untilmonth) ?
- fields[i_untilmonth] : "Jan",
- (nfields > i_untilday) ? fields[i_untilday] : "1",
- (nfields > i_untiltime) ? fields[i_untiltime] : "0");
- z.z_untiltime = rpytime(&z.z_untilrule,
- z.z_untilrule.r_loyear);
- if (iscont && nzones > 0 &&
- z.z_untiltime > min_time &&
- z.z_untiltime < max_time &&
- 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"
- ));
- return FALSE;
- }
- }
- zones = (struct zone *) (void *) erealloc((char *) zones,
- (int) ((nzones + 1) * sizeof *zones));
- zones[nzones++] = z;
- /*
- ** If there was an UNTIL field on this line,
- ** there's more information about the zone on the next line.
- */
- return hasuntil;
-}
-
-static void
-inleap(fields, nfields)
-register char ** const fields;
-const int nfields;
-{
- register const char * cp;
- register const struct lookup * lp;
- register int i, j;
- int year, month, day;
- long dayoff, tod;
- zic_t t;
-
- if (nfields != LEAP_FIELDS) {
- error(_("wrong number of fields on Leap line"));
- return;
- }
- dayoff = 0;
- cp = fields[LP_YEAR];
- if (sscanf(cp, scheck(cp, "%d"), &year) != 1) {
- /*
- ** 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) {
- i = len_years[isleap(j)];
- ++j;
- } else {
- --j;
- i = -len_years[isleap(j)];
- }
- dayoff = oadd(dayoff, eitol(i));
- }
- if ((lp = byword(fields[LP_MONTH], mon_names)) == NULL) {
- error(_("invalid month name"));
- return;
- }
- month = lp->l_value;
- j = TM_JANUARY;
- while (j != month) {
- i = len_months[isleap(year)][j];
- dayoff = oadd(dayoff, eitol(i));
- ++j;
- }
- cp = fields[LP_DAY];
- if (sscanf(cp, scheck(cp, "%d"), &day) != 1 ||
- day <= 0 || day > len_months[isleap(year)][month]) {
- error(_("invalid day of month"));
- return;
- }
- dayoff = oadd(dayoff, eitol(day - 1));
- if (dayoff < 0 && !TYPE_SIGNED(zic_t)) {
- error(_("time before zero"));
- return;
- }
- if (dayoff < min_time / SECSPERDAY) {
- error(_("time too small"));
- return;
- }
- if (dayoff > max_time / SECSPERDAY) {
- error(_("time too large"));
- return;
- }
- t = (zic_t) dayoff * SECSPERDAY;
- tod = gethms(fields[LP_TIME], _("invalid time of day"), FALSE);
- cp = fields[LP_CORR];
- {
- register int positive;
- int count;
-
- if (strcmp(cp, "") == 0) { /* infile() turns "-" into "" */
- positive = FALSE;
- count = 1;
- } else if (strcmp(cp, "--") == 0) {
- positive = FALSE;
- count = 2;
- } else if (strcmp(cp, "+") == 0) {
- positive = TRUE;
- count = 1;
- } else if (strcmp(cp, "++") == 0) {
- positive = TRUE;
- count = 2;
- } else {
- error(_("illegal CORRECTION field on Leap line"));
- return;
- }
- if ((lp = byword(fields[LP_ROLL], leap_types)) == NULL) {
- error(_(
- "illegal Rolling/Stationary field on Leap line"
- ));
- return;
- }
- leapadd(tadd(t, tod), positive, lp->l_value, count);
- }
-}
-
-static void
-inlink(fields, nfields)
-register char ** const fields;
-const int nfields;
-{
- struct link l;
-
- if (nfields != LINK_FIELDS) {
- error(_("wrong number of fields on Link line"));
- return;
- }
- if (*fields[LF_FROM] == '\0') {
- error(_("blank FROM field on Link line"));
- return;
- }
- if (*fields[LF_TO] == '\0') {
- error(_("blank TO field on Link line"));
- return;
- }
- l.l_filename = filename;
- l.l_linenum = linenum;
- l.l_from = ecpyalloc(fields[LF_FROM]);
- l.l_to = ecpyalloc(fields[LF_TO]);
- links = (struct link *) (void *) erealloc((char *) links,
- (int) ((nlinks + 1) * sizeof *links));
- links[nlinks++] = l;
-}
-
-static void
-rulesub(rp, loyearp, hiyearp, typep, monthp, dayp, timep)
-register struct rule * const rp;
-const char * const loyearp;
-const char * const hiyearp;
-const char * const typep;
-const char * const monthp;
-const char * const dayp;
-const char * const timep;
-{
- register const struct lookup * lp;
- register const char * cp;
- register char * dp;
- register char * ep;
-
- if ((lp = byword(monthp, mon_names)) == NULL) {
- error(_("invalid month name"));
- return;
- }
- rp->r_month = lp->l_value;
- rp->r_todisstd = FALSE;
- rp->r_todisgmt = FALSE;
- dp = ecpyalloc(timep);
- if (*dp != '\0') {
- ep = dp + strlen(dp) - 1;
- switch (lowerit(*ep)) {
- case 's': /* Standard */
- rp->r_todisstd = TRUE;
- rp->r_todisgmt = FALSE;
- *ep = '\0';
- break;
- case 'w': /* Wall */
- rp->r_todisstd = FALSE;
- rp->r_todisgmt = FALSE;
- *ep = '\0';
- break;
- case 'g': /* Greenwich */
- case 'u': /* Universal */
- case 'z': /* Zulu */
- rp->r_todisstd = TRUE;
- rp->r_todisgmt = TRUE;
- *ep = '\0';
- break;
- }
- }
- rp->r_tod = gethms(dp, _("invalid time of day"), FALSE);
- ifree(dp);
- /*
- ** Year work.
- */
- cp = loyearp;
- lp = byword(cp, begin_years);
- rp->r_lowasnum = lp == NULL;
- if (!rp->r_lowasnum) switch ((int) lp->l_value) {
- case YR_MINIMUM:
- rp->r_loyear = INT_MIN;
- break;
- case YR_MAXIMUM:
- rp->r_loyear = INT_MAX;
- break;
- default: /* "cannot happen" */
- errx(EXIT_FAILURE,
- _("panic: invalid l_value %d"), lp->l_value);
- } else if (sscanf(cp, scheck(cp, "%d"), &rp->r_loyear) != 1) {
- error(_("invalid starting year"));
- return;
- }
- cp = hiyearp;
- 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;
- case YR_MAXIMUM:
- rp->r_hiyear = INT_MAX;
- break;
- case YR_ONLY:
- rp->r_hiyear = rp->r_loyear;
- break;
- default: /* "cannot happen" */
- errx(EXIT_FAILURE,
- _("panic: invalid l_value %d"), lp->l_value);
- } else if (sscanf(cp, scheck(cp, "%d"), &rp->r_hiyear) != 1) {
- error(_("invalid ending year"));
- return;
- }
- if (rp->r_loyear > rp->r_hiyear) {
- error(_("starting year greater than ending year"));
- return;
- }
- if (*typep == '\0')
- rp->r_yrtype = NULL;
- else {
- if (rp->r_loyear == rp->r_hiyear) {
- error(_("typed single year"));
- return;
- }
- rp->r_yrtype = ecpyalloc(typep);
- }
- /*
- ** Day work.
- ** Accept things such as:
- ** 1
- ** last-Sunday
- ** Sun<=20
- ** Sun>=7
- */
- dp = ecpyalloc(dayp);
- if ((lp = byword(dp, lasts)) != NULL) {
- rp->r_dycode = DC_DOWLEQ;
- rp->r_wday = lp->l_value;
- rp->r_dayofmonth = len_months[1][rp->r_month];
- } else {
- if ((ep = strchr(dp, '<')) != 0)
- rp->r_dycode = DC_DOWLEQ;
- else if ((ep = strchr(dp, '>')) != 0)
- rp->r_dycode = DC_DOWGEQ;
- else {
- ep = dp;
- rp->r_dycode = DC_DOM;
- }
- if (rp->r_dycode != DC_DOM) {
- *ep++ = 0;
- if (*ep++ != '=') {
- error(_("invalid day of month"));
- ifree(dp);
- return;
- }
- if ((lp = byword(dp, wday_names)) == NULL) {
- error(_("invalid weekday name"));
- ifree(dp);
- return;
- }
- rp->r_wday = lp->l_value;
- }
- if (sscanf(ep, scheck(ep, "%d"), &rp->r_dayofmonth) != 1 ||
- rp->r_dayofmonth <= 0 ||
- (rp->r_dayofmonth > len_months[1][rp->r_month])) {
- error(_("invalid day of month"));
- ifree(dp);
- return;
- }
- }
- ifree(dp);
-}
-
-static void
-convert(val, buf)
-const long val;
-char * const buf;
-{
- register int i;
- 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;
-{
- char buf[4];
-
- convert(val, buf);
- (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)
-const void * avp;
-const void * bvp;
-{
- 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, string)
-const char * const name;
-const char * const string;
-{
- 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.
- */
- if (timecnt > 1)
- (void) qsort((void *) attypes, (size_t) timecnt,
- (size_t) sizeof *attypes, atcomp);
- /*
- ** Optimize.
- */
- {
- int fromi;
- int toi;
-
- toi = 0;
- fromi = 0;
- while (fromi < timecnt && attypes[fromi].at < min_time)
- ++fromi;
- if (isdsts[0] == 0)
- 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[toi - 1].type != attypes[fromi].type)
- attypes[toi++] = attypes[fromi];
- }
- timecnt = toi;
- }
- /*
- ** Transfer.
- */
- for (i = 0; i < timecnt; ++i) {
- 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);
-
- /*
- * Remove old file, if any, to snap links.
- */
- if (!itsdir(fullname) && remove(fullname) != 0 && errno != ENOENT)
- err(EXIT_FAILURE, _("can't remove %s"), fullname);
-
- if ((fp = fopen(fullname, "wb")) == NULL) {
- if (mkdirs(fullname) != 0)
- exit(EXIT_FAILURE);
- if ((fp = fopen(fullname, "wb")) == NULL)
- err(EXIT_FAILURE, _("can't create %s"), fullname);
- }
- 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;
- }
- 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);
- }
- 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))
- errx(EXIT_FAILURE, _("error writing %s"), fullname);
- if (chmod(fullname, mflag) < 0)
- err(EXIT_FAILURE, _("cannot change mode of %s to %03o"),
- fullname, (unsigned)mflag);
- if ((uflag != (uid_t)-1 || gflag != (gid_t)-1)
- && chown(fullname, uflag, gflag) < 0)
- err(EXIT_FAILURE, _("cannot change ownership of %s"),
- fullname);
-}
-
-static void
-doabbr(abbr, format, letters, isdst, doquotes)
-char * const abbr;
-const char * const format;
-const char * const letters;
-const int isdst;
-const int doquotes;
-{
- 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, 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 || zp->z_stdoff != 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;
- }
-}
-
-static void
-outzone(zpfirst, zonecount)
-const struct zone * const zpfirst;
-const int zonecount;
-{
- register const struct zone * zp;
- register struct rule * rp;
- register int i, j;
- register int usestart, useuntil;
- register zic_t starttime, untiltime;
- register long gmtoff;
- register long stdoff;
- register int year;
- register long startoff;
- register int startttisstd;
- register int startttisgmt;
- register int type;
- 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);
- /*
- ** Now. . .finally. . .generate some useful data!
- */
- timecnt = 0;
- typecnt = 0;
- charcnt = 0;
- /*
- ** 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.
- */
- stdoff = 0;
- zp = &zpfirst[i];
- usestart = i > 0 && (zp - 1)->z_untiltime > min_time;
- useuntil = i < (zonecount - 1);
- if (useuntil && zp->z_untiltime <= min_time)
- continue;
- gmtoff = zp->z_gmtoff;
- eat(zp->z_filename, zp->z_linenum);
- *startbuf = '\0';
- startoff = zp->z_gmtoff;
- if (zp->z_nrules == 0) {
- stdoff = zp->z_stdoff;
- doabbr(startbuf, zp->z_format,
- (char *) NULL, stdoff != 0, FALSE);
- type = addtype(oadd(zp->z_gmtoff, stdoff),
- startbuf, stdoff != 0, startttisstd,
- startttisgmt);
- if (usestart) {
- addtt(starttime, type);
- usestart = FALSE;
- } else if (stdoff != 0)
- addtt(min_time, type);
- } else for (year = min_year; year <= max_year; ++year) {
- if (useuntil && year > zp->z_untilrule.r_hiyear)
- break;
- /*
- ** Mark which rules to do in the current year.
- ** For those to do, calculate rpytime(rp, year);
- */
- for (j = 0; j < zp->z_nrules; ++j) {
- rp = &zp->z_rules[j];
- eats(zp->z_filename, zp->z_linenum,
- rp->r_filename, rp->r_linenum);
- rp->r_todo = year >= rp->r_loyear &&
- year <= rp->r_hiyear &&
- yearistype(year, rp->r_yrtype);
- if (rp->r_todo)
- rp->r_temp = rpytime(rp, year);
- }
- for ( ; ; ) {
- register int k;
- register zic_t jtime, ktime;
- register long offset;
-
- INITIALIZE(ktime);
- if (useuntil) {
- /*
- ** Turn untiltime into UTC
- ** assuming the current gmtoff and
- ** stdoff values.
- */
- untiltime = zp->z_untiltime;
- if (!zp->z_untilrule.r_todisgmt)
- untiltime = tadd(untiltime,
- -gmtoff);
- if (!zp->z_untilrule.r_todisstd)
- untiltime = tadd(untiltime,
- -stdoff);
- }
- /*
- ** Find the rule (of those to do, if any)
- ** that takes effect earliest in the year.
- */
- k = -1;
- for (j = 0; j < zp->z_nrules; ++j) {
- rp = &zp->z_rules[j];
- if (!rp->r_todo)
- continue;
- eats(zp->z_filename, zp->z_linenum,
- rp->r_filename, rp->r_linenum);
- offset = rp->r_todisgmt ? 0 : gmtoff;
- if (!rp->r_todisstd)
- offset = oadd(offset, stdoff);
- jtime = rp->r_temp;
- if (jtime == min_time ||
- jtime == max_time)
- continue;
- jtime = tadd(jtime, -offset);
- if (k < 0 || jtime < ktime) {
- k = j;
- ktime = jtime;
- }
- }
- if (k < 0)
- break; /* go on to next year */
- rp = &zp->z_rules[k];
- rp->r_todo = FALSE;
- if (useuntil && ktime >= untiltime)
- break;
- stdoff = rp->r_stdoff;
- if (usestart && ktime == starttime)
- usestart = FALSE;
- if (usestart) {
- if (ktime < starttime) {
- startoff = oadd(zp->z_gmtoff,
- stdoff);
- doabbr(startbuf, zp->z_format,
- rp->r_abbrvar,
- 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,
- FALSE);
- }
- }
- eats(zp->z_filename, zp->z_linenum,
- rp->r_filename, rp->r_linenum);
- doabbr(ab, zp->z_format, rp->r_abbrvar,
- rp->r_stdoff != 0, FALSE);
- offset = oadd(zp->z_gmtoff, rp->r_stdoff);
- type = addtype(offset, ab, rp->r_stdoff != 0,
- rp->r_todisstd, rp->r_todisgmt);
- addtt(ktime, type);
- }
- }
- if (usestart) {
- if (*startbuf == '\0' &&
- zp->z_format != NULL &&
- strchr(zp->z_format, '%') == NULL &&
- strchr(zp->z_format, '/') == NULL)
- (void) strcpy(startbuf, zp->z_format);
- eat(zp->z_filename, zp->z_linenum);
- if (*startbuf == '\0')
-error(_("can't determine time zone abbreviation to use just after until time"));
- else addtt(starttime,
- addtype(startoff, startbuf,
- startoff != zp->z_gmtoff,
- startttisstd,
- startttisgmt));
- }
- /*
- ** Now we may get to set starttime for the next zone line.
- */
- if (useuntil) {
- startttisstd = zp->z_untilrule.r_todisstd;
- startttisgmt = zp->z_untilrule.r_todisgmt;
- starttime = zp->z_untiltime;
- if (!startttisstd)
- starttime = tadd(starttime, -stdoff);
- if (!startttisgmt)
- starttime = tadd(starttime, -gmtoff);
- }
- }
- writezone(zpfirst->z_name, envvar);
- ifree(startbuf);
- ifree(ab);
- ifree(envvar);
-}
-
-static void
-addtt(starttime, type)
-const zic_t starttime;
-int type;
-{
- if (starttime <= min_time ||
- (timecnt == 1 && attypes[0].at < min_time)) {
- gmtoffs[0] = gmtoffs[type];
- isdsts[0] = isdsts[type];
- ttisstds[0] = ttisstds[type];
- ttisgmts[0] = ttisgmts[type];
- if (abbrinds[type] != 0)
- (void) strcpy(chars, &chars[abbrinds[type]]);
- abbrinds[0] = 0;
- charcnt = strlen(chars) + 1;
- typecnt = 1;
- timecnt = 0;
- type = 0;
- }
- if (timecnt >= TZ_MAX_TIMES) {
- error(_("too many transitions?!"));
- exit(EXIT_FAILURE);
- }
- attypes[timecnt].at = starttime;
- attypes[timecnt].type = type;
- ++timecnt;
-}
-
-static int
-addtype(gmtoff, abbr, isdst, ttisstd, ttisgmt)
-const long gmtoff;
-const char * const abbr;
-const int isdst;
-const int ttisstd;
-const int ttisgmt;
-{
- register int i, j;
-
- if (isdst != TRUE && isdst != FALSE) {
- error(_("internal error - addtype called with bad isdst"));
- exit(EXIT_FAILURE);
- }
- if (ttisstd != TRUE && ttisstd != FALSE) {
- error(_("internal error - addtype called with bad ttisstd"));
- exit(EXIT_FAILURE);
- }
- if (ttisgmt != TRUE && ttisgmt != FALSE) {
- error(_("internal error - addtype called with bad ttisgmt"));
- exit(EXIT_FAILURE);
- }
- /*
- ** See if there's already an entry for this zone type.
- ** If so, just return its index.
- */
- for (i = 0; i < typecnt; ++i) {
- if (gmtoff == gmtoffs[i] && isdst == isdsts[i] &&
- strcmp(abbr, &chars[abbrinds[i]]) == 0 &&
- ttisstd == ttisstds[i] &&
- ttisgmt == ttisgmts[i])
- return i;
- }
- /*
- ** There isn't one; add a new one, unless there are already too
- ** many.
- */
- if (typecnt >= TZ_MAX_TYPES) {
- error(_("too many local time types"));
- exit(EXIT_FAILURE);
- }
- if (! (-1L - 2147483647L <= gmtoff && gmtoff <= 2147483647L)) {
- error(_("UTC offset out of range"));
- exit(EXIT_FAILURE);
- }
- gmtoffs[i] = gmtoff;
- isdsts[i] = isdst;
- ttisstds[i] = ttisstd;
- ttisgmts[i] = ttisgmt;
-
- for (j = 0; j < charcnt; ++j)
- if (strcmp(&chars[j], abbr) == 0)
- break;
- if (j == charcnt)
- newabbr(abbr);
- abbrinds[i] = j;
- ++typecnt;
- return i;
-}
-
-static void
-leapadd(t, positive, rolling, count)
-const zic_t t;
-const int positive;
-const int rolling;
-int count;
-{
- register int i, j;
-
- if (leapcnt + (positive ? count : 1) > TZ_MAX_LEAPS) {
- error(_("too many leap seconds"));
- exit(EXIT_FAILURE);
- }
- for (i = 0; i < leapcnt; ++i)
- if (t <= trans[i]) {
- if (t == trans[i]) {
- error(_("repeated leap second moment"));
- exit(EXIT_FAILURE);
- }
- break;
- }
- do {
- for (j = leapcnt; j > i; --j) {
- trans[j] = trans[j - 1];
- corr[j] = corr[j - 1];
- roll[j] = roll[j - 1];
- }
- trans[i] = t;
- corr[i] = positive ? 1L : eitol(-count);
- roll[i] = rolling;
- ++leapcnt;
- } while (positive && --count != 0);
-}
-
-static void
-adjleap(void)
-{
- register int i;
- register long last = 0;
-
- /*
- ** propagate leap seconds forward
- */
- for (i = 0; i < leapcnt; ++i) {
- trans[i] = tadd(trans[i], last);
- last = corr[i] += last;
- }
-}
-
-static int
-yearistype(year, type)
-const int year;
-const char * const type;
-{
- static char * buf;
- int result;
-
- if (type == NULL || *type == '\0')
- return TRUE;
- buf = erealloc(buf, (int) (132 + strlen(yitcommand) + strlen(type)));
- (void) sprintf(buf, "%s %d %s", yitcommand, year, type);
- result = system(buf);
- if (WIFEXITED(result)) switch (WEXITSTATUS(result)) {
- case 0:
- return TRUE;
- case 1:
- return FALSE;
- }
- error(_("wild result from command execution"));
- warnx(_("command was '%s', result was %d"), buf, result);
- for ( ; ; )
- exit(EXIT_FAILURE);
-}
-
-static int
-lowerit(a)
-int a;
-{
- a = (unsigned char) a;
- return (isascii(a) && isupper(a)) ? tolower(a) : a;
-}
-
-static int
-ciequal(ap, bp) /* case-insensitive equality */
-register const char * ap;
-register const char * bp;
-{
- while (lowerit(*ap) == lowerit(*bp++))
- if (*ap++ == '\0')
- return TRUE;
- return FALSE;
-}
-
-static int
-itsabbr(abbr, word)
-register const char * abbr;
-register const char * word;
-{
- if (lowerit(*abbr) != lowerit(*word))
- return FALSE;
- ++word;
- while (*++abbr != '\0')
- do {
- if (*word == '\0')
- return FALSE;
- } while (lowerit(*word++) != lowerit(*abbr));
- return TRUE;
-}
-
-static const struct lookup *
-byword(word, table)
-register const char * const word;
-register const struct lookup * const table;
-{
- register const struct lookup * foundlp;
- register const struct lookup * lp;
-
- if (word == NULL || table == NULL)
- return NULL;
- /*
- ** Look for exact match.
- */
- for (lp = table; lp->l_word != NULL; ++lp)
- if (ciequal(word, lp->l_word))
- return lp;
- /*
- ** Look for inexact match.
- */
- foundlp = NULL;
- for (lp = table; lp->l_word != NULL; ++lp)
- if (itsabbr(word, lp->l_word)) {
- if (foundlp == NULL)
- foundlp = lp;
- else return NULL; /* multiple inexact matches */
- }
- return foundlp;
-}
-
-static char **
-getfields(cp)
-register char * cp;
-{
- register char * dp;
- register char ** array;
- register int nsubs;
-
- if (cp == NULL)
- return NULL;
- array = (char **) (void *)
- emalloc((int) ((strlen(cp) + 1) * sizeof *array));
- nsubs = 0;
- for ( ; ; ) {
- while (isascii((unsigned char) *cp) &&
- isspace((unsigned char) *cp))
- ++cp;
- if (*cp == '\0' || *cp == '#')
- break;
- array[nsubs++] = dp = cp;
- do {
- if ((*dp = *cp++) != '"')
- ++dp;
- else while ((*dp = *cp++) != '"')
- if (*dp != '\0')
- ++dp;
- else {
- error(_("odd number of quotation marks"));
- exit(EXIT_FAILURE);
- }
- } while (*cp != '\0' && *cp != '#' &&
- (!isascii(*cp) || !isspace((unsigned char) *cp)));
- if (isascii(*cp) && isspace((unsigned char) *cp))
- ++cp;
- *dp = '\0';
- }
- array[nsubs] = NULL;
- return array;
-}
-
-static long
-oadd(t1, t2)
-const long t1;
-const long t2;
-{
- register long t;
-
- t = t1 + t2;
- if ((t2 > 0 && t <= t1) || (t2 < 0 && t >= t1)) {
- error(_("time overflow"));
- exit(EXIT_FAILURE);
- }
- return t;
-}
-
-static zic_t
-tadd(t1, t2)
-const zic_t t1;
-const long t2;
-{
- register zic_t t;
-
- if (t1 == max_time && t2 > 0)
- return max_time;
- if (t1 == min_time && t2 < 0)
- return min_time;
- t = t1 + t2;
- if ((t2 > 0 && t <= t1) || (t2 < 0 && t >= t1)) {
- error(_("time overflow"));
- exit(EXIT_FAILURE);
- }
- return t;
-}
-
-/*
-** Given a rule, and a year, compute the date - in seconds since January 1,
-** 1970, 00:00 LOCAL time - in that year that the rule refers to.
-*/
-
-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 zic_t t;
-
- if (wantedy == INT_MIN)
- return min_time;
- if (wantedy == INT_MAX)
- return max_time;
- dayoff = 0;
- m = TM_JANUARY;
- y = EPOCH_YEAR;
- while (wantedy != y) {
- if (wantedy > y) {
- i = len_years[isleap(y)];
- ++y;
- } else {
- --y;
- i = -len_years[isleap(y)];
- }
- dayoff = oadd(dayoff, eitol(i));
- }
- while (m != rp->r_month) {
- i = len_months[isleap(y)][m];
- dayoff = oadd(dayoff, eitol(i));
- ++m;
- }
- i = rp->r_dayofmonth;
- if (m == TM_FEBRUARY && i == 29 && !isleap(y)) {
- if (rp->r_dycode == DC_DOWLEQ)
- --i;
- else {
- error(_("use of 2/29 in non leap-year"));
- exit(EXIT_FAILURE);
- }
- }
- --i;
- dayoff = oadd(dayoff, eitol(i));
- if (rp->r_dycode == DC_DOWGEQ || rp->r_dycode == DC_DOWLEQ) {
- register long wday;
-
-#define LDAYSPERWEEK ((long) DAYSPERWEEK)
- wday = eitol(EPOCH_WDAY);
- /*
- ** Don't trust mod of negative numbers.
- */
- if (dayoff >= 0)
- wday = (wday + dayoff) % LDAYSPERWEEK;
- else {
- wday -= ((-dayoff) % LDAYSPERWEEK);
- if (wday < 0)
- wday += LDAYSPERWEEK;
- }
- while (wday != eitol(rp->r_wday))
- if (rp->r_dycode == DC_DOWGEQ) {
- dayoff = oadd(dayoff, (long) 1);
- if (++wday >= LDAYSPERWEEK)
- wday = 0;
- ++i;
- } else {
- dayoff = oadd(dayoff, (long) -1);
- if (--wday < 0)
- wday = LDAYSPERWEEK - 1;
- --i;
- }
- 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"));
- }
- }
- if (dayoff < min_time / SECSPERDAY)
- return min_time;
- if (dayoff > max_time / SECSPERDAY)
- return max_time;
- t = (zic_t) dayoff * SECSPERDAY;
- return tadd(t, rp->r_tod);
-}
-
-static void
-newabbr(string)
-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"));
- exit(EXIT_FAILURE);
- }
- (void) strcpy(&chars[charcnt], string);
- charcnt += eitol(i);
-}
-
-static int
-mkdirs(argname)
-char * argname;
-{
- register char * name;
- register char * cp;
-
- if (argname == NULL || *argname == '\0' || Dflag)
- return 0;
- cp = name = ecpyalloc(argname);
- while ((cp = strchr(cp + 1, '/')) != 0) {
- *cp = '\0';
-#ifndef unix
- /*
- ** DOS drive specifier?
- */
- if (isalpha((unsigned char) name[0]) &&
- name[1] == ':' && name[2] == '\0') {
- *cp = '/';
- continue;
- }
-#endif /* !defined unix */
- if (!itsdir(name)) {
- /*
- ** It doesn't seem to exist, so we try to create it.
- ** Creation may fail because of the directory being
- ** created by some other multiprocessor, so we get
- ** to do extra checking.
- */
- if (mkdir(name, MKDIR_UMASK) != 0
- && (errno != EEXIST || !itsdir(name))) {
- warn(_("can't create directory %s"), name);
- ifree(name);
- return -1;
- }
- }
- *cp = '/';
- }
- ifree(name);
- return 0;
-}
-
-static long
-eitol(i)
-const int i;
-{
- long l;
-
- l = i;
- if ((i < 0 && l >= 0) || (i == 0 && l != 0) || (i > 0 && l <= 0))
- errx(EXIT_FAILURE, _("%d did not sign extend correctly"), i);
- return l;
-}
-
-#include <grp.h>
-#include <pwd.h>
-
-static void
-setgroup(flag, name)
- gid_t *flag;
- const char *name;
-{
- struct group *gr;
-
- if (*flag != (gid_t)-1)
- errx(EXIT_FAILURE, _("multiple -g flags specified"));
-
- gr = getgrnam(name);
- if (gr == 0) {
- char *ep;
- unsigned long ul;
-
- ul = strtoul(name, &ep, 10);
- if (ul == (unsigned long)(gid_t)ul && *ep == '\0') {
- *flag = ul;
- return;
- }
- errx(EXIT_FAILURE, _("group `%s' not found"), name);
- }
- *flag = gr->gr_gid;
-}
-
-static void
-setuser(flag, name)
- uid_t *flag;
- const char *name;
-{
- struct passwd *pw;
-
- if (*flag != (gid_t)-1)
- errx(EXIT_FAILURE, _("multiple -u flags specified"));
-
- pw = getpwnam(name);
- if (pw == 0) {
- char *ep;
- unsigned long ul;
-
- ul = strtoul(name, &ep, 10);
- if (ul == (unsigned long)(gid_t)ul && *ep == '\0') {
- *flag = ul;
- return;
- }
- errx(EXIT_FAILURE, _("user `%s' not found"), name);
- }
- *flag = pw->pw_uid;
-}
-
-/*
-** UNIX was a registered trademark of The Open Group in 2003.
-*/
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