2229 lines
51 KiB
C
2229 lines
51 KiB
C
#ifndef lint
|
|
#ifndef NOID
|
|
static char elsieid[] = "@(#)zic.c 7.96";
|
|
#endif /* !defined NOID */
|
|
#endif /* !defined lint */
|
|
|
|
#ifndef lint
|
|
static const char rcsid[] =
|
|
"$Id: zic.c,v 1.9 1999/01/21 21:09:56 wollman Exp $";
|
|
#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>
|
|
|
|
/*
|
|
** 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
|
|
|
|
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_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) */
|
|
time_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;
|
|
time_t z_untiltime;
|
|
};
|
|
|
|
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,
|
|
const char * loyearp, const char * hiyearp,
|
|
const char * typep, const char * monthp,
|
|
const char * dayp, const char * timep));
|
|
static void setboundaries P((void));
|
|
static void setgroup P((gid_t *flag, const char *name));
|
|
static void setuser P((uid_t *flag, const char *name));
|
|
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) */
|
|
|
|
static int charcnt;
|
|
static int errors;
|
|
static const char * filename;
|
|
static int leapcnt;
|
|
static int linenum;
|
|
static time_t max_time;
|
|
static int max_year;
|
|
static int max_year_representable;
|
|
static time_t min_time;
|
|
static int min_year;
|
|
static int min_year_representable;
|
|
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 P((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 {
|
|
time_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 time_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.
|
|
*/
|
|
|
|
#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;
|
|
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 P((void))
|
|
{
|
|
(void) fprintf(stderr, "%s\n%s\n",
|
|
_("usage: zic [-s] [-v] [-l localtime] [-p posixrules] [-d directory]"),
|
|
_(" [-L leapseconds] [-y yearistype] [filename ... ]"));
|
|
(void) exit(EXIT_FAILURE);
|
|
}
|
|
|
|
static const char * psxrules;
|
|
static const char * lcltime;
|
|
static const char * directory;
|
|
static const char * leapsec;
|
|
static const char * yitcommand;
|
|
static int sflag = FALSE;
|
|
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 - 0
|
|
(void) setlocale(LC_MESSAGES, "");
|
|
#ifdef TZ_DOMAINDIR
|
|
(void) bindtextdomain(TZ_DOMAIN, TZ_DOMAINDIR);
|
|
#endif /* defined TEXTDOMAINDIR */
|
|
(void) textdomain(TZ_DOMAIN);
|
|
#endif /* HAVE_GETTEXT - 0 */
|
|
while ((c = getopt(argc, argv, "Dd:g:l:m:p:L:u:vsy:")) != -1)
|
|
switch (c) {
|
|
default:
|
|
usage();
|
|
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);
|
|
getmode(set, mflag);
|
|
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':
|
|
sflag = TRUE;
|
|
break;
|
|
}
|
|
if (optind == argc - 1 && strcmp(argv[optind], "=") == 0)
|
|
usage(); /* 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)
|
|
(void) 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)
|
|
dolink(links[i].l_from, links[i].l_to);
|
|
if (lcltime != NULL)
|
|
dolink(lcltime, TZDEFAULT);
|
|
if (psxrules != NULL)
|
|
dolink(psxrules, TZDEFRULES);
|
|
return (errors == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}
|
|
|
|
static void
|
|
dolink(fromfile, tofile)
|
|
const char * const fromfile;
|
|
const char * const tofile;
|
|
{
|
|
register char * fromname;
|
|
register char * toname;
|
|
|
|
if (fromfile[0] == '/')
|
|
fromname = ecpyalloc(fromfile);
|
|
else {
|
|
fromname = ecpyalloc(directory);
|
|
fromname = ecatalloc(fromname, "/");
|
|
fromname = ecatalloc(fromname, fromfile);
|
|
}
|
|
if (tofile[0] == '/')
|
|
toname = ecpyalloc(tofile);
|
|
else {
|
|
toname = ecpyalloc(directory);
|
|
toname = ecatalloc(toname, "/");
|
|
toname = ecatalloc(toname, tofile);
|
|
}
|
|
/*
|
|
** 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)
|
|
(void) exit(EXIT_FAILURE);
|
|
result = link(fromname, toname);
|
|
#if (HAVE_SYMLINK - 0)
|
|
if (result != 0) {
|
|
result = symlink(fromname, toname);
|
|
if (result == 0)
|
|
warning(_("hard link failed, symbolic link used"));
|
|
}
|
|
#endif
|
|
if (result != 0) {
|
|
err(EXIT_FAILURE, _("can't link from %s to %s"),
|
|
fromname, toname);
|
|
}
|
|
}
|
|
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)
|
|
|
|
static void
|
|
setboundaries P((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;
|
|
}
|
|
|
|
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 P((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)
|
|
(void) 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"));
|
|
(void) 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;
|
|
{
|
|
int hh, 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, "%d"), &hh) == 1)
|
|
mm = ss = 0;
|
|
else if (sscanf(string, scheck(string, "%d:%d"), &hh, &mm) == 2)
|
|
ss = 0;
|
|
else if (sscanf(string, scheck(string, "%d:%d:%d"),
|
|
&hh, &mm, &ss) != 3) {
|
|
error(errstring);
|
|
return 0;
|
|
}
|
|
if ((hh < 0 || hh >= HOURSPERDAY ||
|
|
mm < 0 || mm >= MINSPERHOUR ||
|
|
ss < 0 || ss > SECSPERMIN) &&
|
|
!(hh == HOURSPERDAY && mm == 0 && ss == 0)) {
|
|
error(errstring);
|
|
return 0;
|
|
}
|
|
return eitol(sign) *
|
|
(eitol(hh * MINSPERHOUR + 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]);
|
|
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]);
|
|
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;
|
|
time_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;
|
|
}
|
|
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(time_t)) {
|
|
error(_("time before zero"));
|
|
return;
|
|
}
|
|
t = (time_t) dayoff * SECSPERDAY;
|
|
/*
|
|
** Cheap overflow check.
|
|
*/
|
|
if (t / SECSPERDAY != dayoff) {
|
|
error(_("time overflow"));
|
|
return;
|
|
}
|
|
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);
|
|
if (lp != NULL) 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;
|
|
} 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) {
|
|
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;
|
|
} 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"));
|
|
}
|
|
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);
|
|
}
|
|
if (rp->r_loyear < min_year && rp->r_loyear > 0)
|
|
min_year = rp->r_loyear;
|
|
/*
|
|
** 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 long shift;
|
|
|
|
for (i = 0, shift = 24; i < 4; ++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 int
|
|
atcomp(avp, bvp)
|
|
void * avp;
|
|
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;
|
|
}
|
|
|
|
static void
|
|
writezone(name)
|
|
const char * const name;
|
|
{
|
|
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];
|
|
|
|
/*
|
|
** 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;
|
|
}
|
|
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)
|
|
(void) exit(EXIT_FAILURE);
|
|
if ((fp = fopen(fullname, "wb")) == NULL)
|
|
err(EXIT_FAILURE, _("can't create %s"), fullname);
|
|
}
|
|
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;
|
|
}
|
|
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];
|
|
}
|
|
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 (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)
|
|
char * const abbr;
|
|
const char * const format;
|
|
const char * const letters;
|
|
const int isdst;
|
|
{
|
|
if (strchr(format, '/') == 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';
|
|
}
|
|
}
|
|
|
|
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 time_t starttime, untiltime;
|
|
register long gmtoff;
|
|
register long stdoff;
|
|
register int year;
|
|
register long startoff;
|
|
register int startttisstd;
|
|
register int startttisgmt;
|
|
register int type;
|
|
char startbuf[BUFSIZ];
|
|
|
|
INITIALIZE(untiltime);
|
|
INITIALIZE(starttime);
|
|
/*
|
|
** Now. . .finally. . .generate some useful data!
|
|
*/
|
|
timecnt = 0;
|
|
typecnt = 0;
|
|
charcnt = 0;
|
|
/*
|
|
** A guess that may well be corrected later.
|
|
*/
|
|
stdoff = 0;
|
|
/*
|
|
** Thanks to Earl Chew (earl@dnd.icp.nec.com.au)
|
|
** for noting the need to unconditionally initialize startttisstd.
|
|
*/
|
|
startttisstd = FALSE;
|
|
startttisgmt = FALSE;
|
|
for (i = 0; i < zonecount; ++i) {
|
|
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);
|
|
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 time_t jtime, ktime;
|
|
register long offset;
|
|
char buf[BUFSIZ];
|
|
|
|
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);
|
|
continue;
|
|
}
|
|
if (*startbuf == '\0' &&
|
|
startoff == oadd(zp->z_gmtoff,
|
|
stdoff)) {
|
|
doabbr(startbuf, zp->z_format,
|
|
rp->r_abbrvar,
|
|
rp->r_stdoff != 0);
|
|
}
|
|
}
|
|
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);
|
|
offset = oadd(zp->z_gmtoff, rp->r_stdoff);
|
|
type = addtype(offset, buf, 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);
|
|
}
|
|
|
|
static void
|
|
addtt(starttime, type)
|
|
const time_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?!"));
|
|
(void) 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"));
|
|
(void) exit(EXIT_FAILURE);
|
|
}
|
|
if (ttisstd != TRUE && ttisstd != FALSE) {
|
|
error(_("internal error - addtype called with bad ttisstd"));
|
|
(void) exit(EXIT_FAILURE);
|
|
}
|
|
if (ttisgmt != TRUE && ttisgmt != FALSE) {
|
|
error(_("internal error - addtype called with bad ttisgmt"));
|
|
(void) 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"));
|
|
(void) 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 time_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"));
|
|
(void) 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);
|
|
}
|
|
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 P((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 (result == 0)
|
|
return TRUE;
|
|
if (result == (1 << 8))
|
|
return FALSE;
|
|
error(_("wild result from command execution"));
|
|
warnx(_("command was '%s', result was %d"), buf, result);
|
|
for ( ; ; )
|
|
(void) 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(*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"));
|
|
} 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"));
|
|
(void) exit(EXIT_FAILURE);
|
|
}
|
|
return t;
|
|
}
|
|
|
|
static time_t
|
|
tadd(t1, t2)
|
|
const time_t t1;
|
|
const long t2;
|
|
{
|
|
register time_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"));
|
|
(void) 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 time_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;
|
|
|
|
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"));
|
|
(void) 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]) {
|
|
error(_("no day in month matches rule"));
|
|
(void) exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
if (dayoff < 0 && !TYPE_SIGNED(time_t))
|
|
return min_time;
|
|
t = (time_t) dayoff * SECSPERDAY;
|
|
/*
|
|
** Cheap overflow check.
|
|
*/
|
|
if (t / SECSPERDAY != dayoff)
|
|
return (dayoff > 0) ? max_time : min_time;
|
|
return tadd(t, rp->r_tod);
|
|
}
|
|
|
|
static void
|
|
newabbr(string)
|
|
const char * const string;
|
|
{
|
|
register int i;
|
|
|
|
i = strlen(string) + 1;
|
|
if (charcnt + i > TZ_MAX_CHARS) {
|
|
error(_("too many, or too long, time zone abbreviations"));
|
|
(void) exit(EXIT_FAILURE);
|
|
}
|
|
(void) strcpy(&chars[charcnt], string);
|
|
charcnt += eitol(i);
|
|
}
|
|
|
|
static int
|
|
mkdirs(argname)
|
|
char * const 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, (S_IRUSR | S_IWUSR | S_IXUSR
|
|
| S_IRGRP | S_IXGRP | S_IROTH
|
|
| S_IXOTH)) != 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 UNIX System Laboratories in 1993.
|
|
*/
|