* This file is in the public domain, so clarified as of
* 2006-07-17 by Arthur David Olson.
*
* IDENTIFICATION
* src/common/timezone/zic.cpp
*/
#include "postgres_fe.h"
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#endif
#include <limits.h>
#include <locale.h>
extern int optind;
extern char* optarg;
#include "private.h"
#include "pgtz.h"
#include "tzfile.h"
#define ZIC_VERSION '2'
typedef int64 zic_t;
#ifndef ZIC_MAX_ABBR_LEN_WO_WARN
#define ZIC_MAX_ABBR_LEN_WO_WARN 6
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifndef WIN32
#ifdef S_IRUSR
#define MKDIR_UMASK (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH)
#else
#define MKDIR_UMASK 0755
#endif
#endif
static char elsieid[] = "@(#)zic.c 8.20";
* 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
#define end(cp) (strchr((cp), '\0'))
#define UTC_OFFSET_MAX_NUM 2147483647L
struct rule {
const char* r_filename;
int r_linenum;
const char* r_name;
int r_loyear;
int r_hiyear;
const char* r_yrtype;
int r_lowasnum;
int r_hiwasnum;
int r_month;
int r_dycode;
int r_dayofmonth;
int r_wday;
long r_tod;
int r_todisstd;
int r_todisgmt;
long r_stdoff;
const char* r_abbrvar;
int r_todo;
zic_t r_temp;
};
* r_dycode r_dayofmonth r_wday
*/
#define DC_DOM 0
#define DC_DOWGEQ 1
#define DC_DOWLEQ 2
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;
};
extern int link(const char* fromname, const char* toname);
static void addtt(const pg_time_t starttime, int type);
static int addtype(long gmtoff, const char* abbr, int isdst, int ttisstd, int ttisgmt);
static void leapadd(const pg_time_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 dolink(const char* fromfile, const char* tofile);
static void doabbr(char* abbr, int abbr_size, 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(const char** fields, int nfields);
static void inlink(const char** fields, int nfields);
static void inrule(const 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 itsabbr(const char* abbr, const char* word);
static int itsdir(const char* name);
static int lowerit(int c);
static char* memcheck(const char* tocheck);
static int mkdirs(const 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 int rcomp(const void* leftp, const void* rightp);
static pg_time_t rpytime(const struct rule* rp, int wantedy);
static void rulesub(struct rule* rp, const char* loyearp, const char* hiyearp, const char* typep, const char* monthp,
const char* dayp, const char* timep);
static void setboundaries(void);
static pg_time_t tadd(const pg_time_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 int noise;
static const char* rfilename;
static int rlinenum;
static const char* progname;
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;
static struct zone* zones;
static int nzones;
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(const char* ptr)
{
if (ptr == NULL) {
const char* e = gs_strerror(errno);
(void)fprintf(stderr, _("%s: Memory exhausted: %s\n"), progname, e);
exit(EXIT_FAILURE);
}
return (char*)ptr;
}
#define emalloc(size) memcheck(imalloc(size))
#define erealloc(ptr, size) memcheck((char*)irealloc((ptr), (size)))
#define ecpyalloc(ptr) memcheck(icpyalloc(ptr))
#define ecatalloc(oldp, newp) memcheck(icatalloc((oldp), (newp)))
* Error handling.
*/
static void eats(const char* name, int num, const char* rname, int rnum)
{
filename = name;
linenum = num;
rfilename = rname;
rlinenum = rnum;
}
static void eat(const char* name, int num)
{
eats(name, num, (char*)NULL, -1);
}
static void error(const char* 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(const char* string)
{
char* cp = NULL;
cp = ecpyalloc(_("warning: "));
cp = ecatalloc(cp, string);
error(cp);
ifree(cp);
cp = NULL;
--errors;
}
static void usage(FILE* stream, int status)
{
(void)fprintf(stream,
_("%s: usage is %s \
[ --version ] [ --help ] [ -v ] [ -l localtime ] [ -p posixrules ] \\\n\
\t[ -d directory ] [ -L leapseconds ] [ -y yearistype ] [ filename ... ]\n\
\n\
Report bugs to tz@elsie.nci.nih.gov.\n"),
progname,
progname);
exit(status);
}
static const char* psxrules;
static const char* lcltime;
static const char* directory;
static const char* leapsec;
static const char* yitcommand;
int main(int argc, char* argv[])
{
int i;
int j;
int c;
#ifndef WIN32
(void)umask(umask(S_IWGRP | S_IWOTH) | (S_IWGRP | S_IWOTH));
#endif
progname = argv[0];
if (TYPE_BIT(zic_t) < 64) {
(void)fprintf(stderr, "%s: %s\n", progname, _("wild compilation-time specification of zic_t"));
exit(EXIT_FAILURE);
}
for (i = 1; i < argc; ++i) {
if (strcmp(argv[i], "--version") == 0) {
(void)printf("%s\n", elsieid);
exit(EXIT_SUCCESS);
} else if (strcmp(argv[i], "--help") == 0) {
usage(stdout, EXIT_SUCCESS);
}
}
while ((c = getopt(argc, argv, "d:l:p:L:vsy:")) != EOF && c != -1) {
switch (c) {
default:
usage(stderr, EXIT_FAILURE);
case 'd':
if (directory == NULL) {
directory = optarg;
} else {
(void)fprintf(stderr, _("%s: More than one -d option specified\n"), progname);
exit(EXIT_FAILURE);
}
break;
case 'l':
if (lcltime == NULL) {
lcltime = optarg;
} else {
(void)fprintf(stderr, _("%s: More than one -l option specified\n"), progname);
exit(EXIT_FAILURE);
}
break;
case 'p':
if (psxrules == NULL) {
psxrules = optarg;
} else {
(void)fprintf(stderr, _("%s: More than one -p option specified\n"), progname);
exit(EXIT_FAILURE);
}
break;
case 'y':
if (yitcommand == NULL) {
yitcommand = optarg;
} else {
(void)fprintf(stderr, _("%s: More than one -y option specified\n"), progname);
exit(EXIT_FAILURE);
}
break;
case 'L':
if (leapsec == NULL) {
leapsec = optarg;
} else {
(void)fprintf(stderr, _("%s: More than one -L option specified\n"), progname);
exit(EXIT_FAILURE);
}
break;
case 'v':
noise = TRUE;
break;
case 's':
(void)printf("%s: -s ignored\n", progname);
break;
}
}
if (optind == argc - 1 && strcmp(argv[optind], "=") == 0) {
usage(stderr, EXIT_FAILURE);
}
if (directory == NULL) {
directory = "data";
}
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(const char* fromfield, const char* tofield)
{
char* fromname = NULL;
char* toname = NULL;
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);
#ifdef HAVE_SYMLINK
if (result != 0 && access(fromname, F_OK) == 0 && !itsdir(fromname)) {
const char* s = tofield;
char* symlinkcontents = NULL;
while ((s = strchr(s + 1, '/')) != NULL) {
symlinkcontents = ecatalloc(symlinkcontents, "../");
}
symlinkcontents = ecatalloc(symlinkcontents, fromfield);
result = symlink(symlinkcontents, toname);
if (result == 0) {
warning(_("hard link failed, symbolic link used"));
}
ifree(symlinkcontents);
symlinkcontents = NULL;
}
#endif
if (result != 0) {
const char* e = gs_strerror(errno);
(void)fprintf(stderr, _("%s: Cannot link from %s to %s: %s\n"), progname, fromname, toname, e);
exit(EXIT_FAILURE);
}
}
ifree(fromname);
ifree(toname);
fromname = NULL;
toname = NULL;
}
#define TIME_T_BITS_IN_FILE 64
static void setboundaries(void)
{
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(const char* name)
{
char* myname = NULL;
int accres;
myname = ecpyalloc(name);
myname = ecatalloc(myname, "/.");
accres = access(myname, F_OK);
ifree(myname);
myname = NULL;
return accres == 0;
}
* Associate sets of rules with zones.
*/
* Sort by rule name.
*/
static int rcomp(const void* cp1, const void* cp2)
{
return strcmp(((const struct rule*)cp1)->r_name, ((const struct rule*)cp2)->r_name);
}
static void associate(void)
{
struct zone* zp = NULL;
struct rule* rp = NULL;
int base, out;
int i, j;
if (nrules != 0) {
(void)qsort((void*)rules, (size_t)(unsigned int)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, '%') != NULL) {
error(_("percent signs in ruleless zone"));
}
}
}
if (errors) {
exit(EXIT_FAILURE);
}
}
static void infile(const char* name)
{
FILE* fp = NULL;
char** fields;
char* cp = NULL;
const struct lookup* lp = NULL;
int nfields;
int wantcont;
int num;
char buf[BUFSIZ];
if (strcmp(name, "-") == 0) {
name = _("standard input");
fp = stdin;
} else if ((fp = fopen(name, "r")) == NULL) {
const char* e = gs_strerror(errno);
(void)fprintf(stderr, _("%s: Cannot open %s: %s\n"), progname, name, e);
exit(EXIT_FAILURE);
}
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) {
} 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((const char**)fields, nfields);
wantcont = FALSE;
break;
case LC_ZONE:
wantcont = inzone(fields, nfields);
break;
case LC_LINK:
inlink((const char**)fields, nfields);
wantcont = FALSE;
break;
case LC_LEAP:
if (name != leapsec) {
(void)fprintf(stderr, _("%s: Leap line in non leap seconds file %s\n"), progname, name);
} else {
inleap((const char**)fields, nfields);
}
wantcont = FALSE;
break;
default:
(void)fprintf(stderr, _("%s: panic: Invalid l_value %d\n"), progname, lp->l_value);
exit(EXIT_FAILURE);
}
}
}
ifree((char*)fields);
}
if (ferror(fp)) {
(void)fprintf(stderr, _("%s: Error reading %s\n"), progname, filename);
exit(EXIT_FAILURE);
}
if (fp != stdin && fclose(fp)) {
const char* e = gs_strerror(errno);
(void)fprintf(stderr, _("%s: Error closing %s: %s\n"), progname, filename, e);
exit(EXIT_FAILURE);
}
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(const char* string, const char* errstring, 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_s(string, scheck(string, "%ld"), &hh) == 1)
mm = ss = 0;
else if (sscanf_s(string, scheck(string, "%ld:%d"), &hh, &mm) == 2)
ss = 0;
else if (sscanf_s(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(const char** fields, 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 ((size_t)(unsigned int)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(char** fields, int nfields)
{
int i;
static THR_LOCAL char* buf = NULL;
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(char** fields, 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(char** fields, int nfields, int iscont)
{
char* cp = NULL;
static struct zone z;
int i_gmtoff, i_rule, i_format;
int i_untilyear, i_untilmonth;
int i_untilday, i_untiltime;
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], '%')) != NULL) {
if (*++cp != 's' || strchr(cp, '%') != NULL) {
error(_("invalid abbreviation format"));
return FALSE;
}
}
z.z_rule = ecpyalloc(fields[i_rule]);
z.z_format = ecpyalloc(fields[i_format]);
if ((size_t)(unsigned int)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(const char** fields, int nfields)
{
const char* cp = NULL;
const struct lookup* lp = NULL;
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_s(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_s(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 < 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];
{
int positive;
int count;
if (strcmp(cp, "") == 0) {
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(const char** fields, 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(struct rule* rp, const char* loyearp, const char* hiyearp, const char* typep, const char* monthp,
const char* dayp, const char* timep)
{
const struct lookup* lp = NULL;
const char* cp = NULL;
char* dp = NULL;
char* ep = NULL;
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':
rp->r_todisstd = TRUE;
rp->r_todisgmt = FALSE;
*ep = '\0';
break;
case 'w':
rp->r_todisstd = FALSE;
rp->r_todisgmt = FALSE;
*ep = '\0';
break;
case 'g':
case 'u':
case 'z':
rp->r_todisstd = TRUE;
rp->r_todisgmt = TRUE;
*ep = '\0';
break;
default:
break;
}
}
rp->r_tod = gethms(dp, _("invalid time of day"), FALSE);
ifree(dp);
dp = NULL;
* 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:
(void)fprintf(stderr, _("%s: panic: Invalid l_value %d\n"), progname, lp->l_value);
exit(EXIT_FAILURE);
}
} else if (sscanf_s(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:
(void)fprintf(stderr, _("%s: panic: Invalid l_value %d\n"), progname, lp->l_value);
exit(EXIT_FAILURE);
}
} else if (sscanf_s(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, '<')) != NULL) {
rp->r_dycode = DC_DOWLEQ;
} else if ((ep = strchr(dp, '>')) != NULL) {
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);
dp = NULL;
return;
}
if ((lp = byword(dp, wday_names)) == NULL) {
error(_("invalid weekday name"));
ifree(dp);
dp = NULL;
return;
}
rp->r_wday = lp->l_value;
}
if (sscanf_s(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);
dp = NULL;
return;
}
}
ifree(dp);
dp = NULL;
}
static void convert(long val, char* buf)
{
int i;
int shift;
for (i = 0, shift = 24; i < 4; ++i, shift -= 8) {
buf[i] = val >> shift;
}
}
static void convert64(zic_t val, char* buf)
{
int i;
int shift;
for (i = 0, shift = 56; i < 8; ++i, shift -= 8) {
buf[i] = val >> shift;
}
}
static void puttzcode(long val, FILE* fp)
{
char buf[4];
convert(val, buf);
(void)fwrite((void*)buf, (size_t)sizeof buf, (size_t)1, fp);
}
static void puttzcode64(zic_t val, FILE* fp)
{
char buf[8];
convert64(val, buf);
(void)fwrite((void*)buf, (size_t)sizeof buf, (size_t)1, fp);
}
static int atcomp(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(zic_t x)
{
return x == ((zic_t)((int32)x));
}
static void writezone(const char* name, const char* string)
{
FILE* fp = NULL;
int i, j;
int leapcnt32, leapi32;
int timecnt32, timei32;
int pass;
static char* fullname = NULL;
static const struct tzhead tzh0 = {{0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}};
static struct tzhead tzh;
zic_t ats[TZ_MAX_TIMES];
unsigned char types[TZ_MAX_TIMES];
int rc = 0;
* Sort.
*/
if (timecnt > 1) {
(void)qsort((void*)attypes, (size_t)(unsigned int)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;
}
}
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));
rc = sprintf_s(fullname, (strlen(directory) + 1 + strlen(name) + 1), "%s/%s", directory, name);
securec_check_ss_c(rc, "", "");
* Remove old file, if any, to snap links.
*/
if (!itsdir(fullname) && remove(fullname) != 0 && errno != ENOENT) {
const char* e = gs_strerror(errno);
(void)fprintf(stderr, _("%s: Cannot remove %s: %s\n"), progname, fullname, e);
exit(EXIT_FAILURE);
}
if ((fp = fopen(fullname, "wb")) == NULL) {
if (mkdirs(fullname) != 0) {
(void)exit(EXIT_FAILURE);
}
if ((fp = fopen(fullname, "wb")) == NULL) {
const char* e = gs_strerror(errno);
(void)fprintf(stderr, _("%s: Cannot create %s: %s\n"), progname, fullname, e);
exit(EXIT_FAILURE);
}
}
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; (size_t)(unsigned int)i < sizeof(indmap) / sizeof(indmap[0]); ++i) {
indmap[i] = -1;
}
thischarcnt = 0;
for (i = 0; i < typecnt; ++i) {
register char* thisabbr = NULL;
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) {
int ret = strcpy_s(&thischars[(int)thischarcnt], TZ_MAX_CHARS - (int)thischarcnt, thisabbr);
securec_check_c(ret, "\0", "\0");
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;
int rc = strncpy_s(tzh.tzh_magic, sizeof(tzh.tzh_magic), TZ_MAGIC, sizeof tzh.tzh_magic);
securec_check_c(rc, "", "");
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)(unsigned int)thischarcnt, fp);
}
for (i = thisleapi; i < thisleaplim; ++i) {
register zic_t todo;
if (roll[i]) {
if (timecnt == 0 || trans[i] < ats[0]) {
j = 0;
while (isdsts[j]) {
if (++j >= typecnt) {
j = 0;
break;
}
}
} else {
j = 1;
while (j < timecnt && trans[i] >= ats[j]) {
++j;
}
j = types[j - 1];
}
todo = tadd(trans[i], -gmtoffs[j]);
} else {
todo = trans[i];
}
if (pass == 1) {
puttzcode((long)todo, fp);
} else {
puttzcode64(todo, fp);
}
puttzcode(corr[i], fp);
}
for (i = 0; i < typecnt; ++i) {
if (writetype[i]) {
(void)putc(ttisstds[i], fp);
}
}
for (i = 0; i < typecnt; ++i) {
if (writetype[i]) {
(void)putc(ttisgmts[i], fp);
}
}
}
(void)fprintf(fp, "\n%s\n", string);
if (ferror(fp) || fclose(fp)) {
(void)fprintf(stderr, _("%s: Error writing %s\n"), progname, fullname);
exit(EXIT_FAILURE);
}
}
static bool checkIndex(int idx, int bound, bool exit_on_failure = true)
{
if ((idx >= 0) && (idx < bound)) {
return true;
}
if (exit_on_failure) {
(void)fprintf(stderr, _("%s:ERROR index %d out of array bounds %d\n"), progname, idx, bound);
exit(EXIT_FAILURE);
}
return false;
}
static void doabbr(char* abbr, int abbr_size, const char* format, const char* letters, int isdst, int doquotes)
{
char* cp = NULL;
char* slashp = NULL;
int len;
errno_t rc;
slashp = (char*)strchr(format, '/');
if (slashp == NULL) {
if (letters == NULL) {
rc = strcpy_s(abbr, strlen(format) + 1, format);
securec_check_c(rc, "\0", "\0");
} else {
rc = sprintf_s(abbr, strlen(format) + strlen(letters) + 2, format, letters);
securec_check_ss_c(rc, "", "");
}
} else if (isdst) {
rc = strcpy_s(abbr, strlen(slashp + 1) + 1, slashp + 1);
securec_check_c(rc, "\0", "\0");
} else {
if (slashp > format) {
rc = strncpy_s(abbr, strlen(format) + sizeof(unsigned long int) + 1, format, (unsigned)(slashp - format));
securec_check_c(rc, "\0", "\0");
}
if (checkIndex(slashp - format, abbr_size)) {
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;
}
if (checkIndex(len + 2, abbr_size)) {
abbr[len + 2] = '\0';
}
if (checkIndex(len + 1, abbr_size)) {
abbr[len + 1] = '>';
}
checkIndex(len, abbr_size);
for (; len > 0; --len) {
abbr[len] = abbr[len - 1];
}
abbr[0] = '<';
}
static void updateminmax(int x)
{
if (min_year > x) {
min_year = x;
}
if (max_year < x) {
max_year = x;
}
}
static int stringoffset(char* result, long offset)
{
int hours;
int minutes;
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(char* result, const struct rule* rp, long dstoff, long gmtoff)
{
long tod;
result = end(result);
if (rp->r_dycode == DC_DOM) {
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 {
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;
}
(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(char* result, int result_size, const struct zone* zpfirst, int zonecount)
{
const struct zone* zp = NULL;
struct rule* rp = NULL;
struct rule* stdrp = NULL;
struct rule* dstrp = NULL;
int i;
const char* abbrvar = NULL;
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;
}
* 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, result_size, zp->z_format, abbrvar, FALSE, TRUE);
if (stringoffset(end(result), -zp->z_gmtoff) != 0) {
result[0] = '\0';
return;
}
if (dstrp == NULL) {
return;
}
* About size compute:
*
* H e l l o \0
* 0 1 2 3 4 5 6 7 8 9
* ^result=0
* ^end=5
* total size = 10
* size left = size - (end - result) = 10 - (5 -0) = 5
*/
doabbr(end(result), result_size - (end(result) - 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(const struct zone* zpfirst, int zonecount)
{
const struct zone* zp = NULL;
struct rule* rp = NULL;
int i, j;
int usestart, useuntil;
zic_t starttime = 0;
zic_t untiltime = 0;
long gmtoff;
long stdoff;
int year;
long startoff;
int startttisstd;
int startttisgmt;
int type;
char* startbuf = NULL;
char* ab = NULL;
char* envvar = NULL;
int rc = 0;
const int max_abbr_len = 2 + max_format_len + max_abbrvar_len;
const int max_envvar_len = 2 * max_abbr_len + 5 * 9;
const int startbuf_size = max_abbr_len + 1;
const int envvar_size = max_envvar_len + 1;
startbuf = emalloc(startbuf_size);
ab = emalloc(startbuf_size);
envvar = emalloc(envvar_size);
* 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 + (int)(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, envvar_size, zpfirst, zonecount);
if (noise && envvar[0] == '\0') {
char* wp = NULL;
wp = ecpyalloc(_("no POSIX environment variable for zone"));
wp = ecatalloc(wp, " ");
wp = ecatalloc(wp, zpfirst->z_name);
warning(wp);
ifree(wp);
wp = NULL;
}
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, startbuf_size, 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 (;;) {
int k;
zic_t jtime;
zic_t ktime = 0;
long offset;
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;
}
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, startbuf_size, zp->z_format, rp->r_abbrvar, rp->r_stdoff != 0, FALSE);
continue;
}
if (*startbuf == '\0' && startoff == oadd(zp->z_gmtoff, stdoff)) {
doabbr(startbuf, startbuf_size, 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, startbuf_size, 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) {
rc = strcpy_s(startbuf, startbuf_size, zp->z_format);
securec_check_c(rc, "", "");
}
eat(zp->z_filename, zp->z_linenum);
if (*startbuf == '\0') {
error(_("cannot 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);
startbuf = NULL;
ab = NULL;
envvar = NULL;
}
static void addtt(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(long gmtoff, const char* abbr, int isdst, int ttisstd, int ttisgmt)
{
int i;
int 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 (!(-UTC_OFFSET_MAX_NUM - 1L <= gmtoff && gmtoff <= UTC_OFFSET_MAX_NUM)) {
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(const zic_t t, int positive, int rolling, int count)
{
int i;
int 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)
{
int i;
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(int year, const char* type)
{
static THR_LOCAL 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 = gs_system_security(buf);
if (WIFEXITED(result)) {
switch (WEXITSTATUS(result)) {
case 0:
return TRUE;
case 1:
return FALSE;
default:
break;
}
}
error(_("Wild result from command execution"));
(void)fprintf(stderr, _("%s: command was '%s', result was %d\n"), progname, buf, result);
for (;;) {
exit(EXIT_FAILURE);
}
}
static int lowerit(int a)
{
a = (unsigned char)a;
return (isascii(a) && isupper(a)) ? tolower(a) : a;
}
static int ciequal(const char* ap, const char* bp)
{
while (lowerit(*ap) == lowerit(*bp++)) {
if (*ap++ == '\0') {
return TRUE;
}
}
return FALSE;
}
static int itsabbr(const char* abbr, 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(const char* word, const struct lookup* table)
{
const struct lookup* foundlp = NULL;
const struct lookup* lp = NULL;
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;
}
}
}
return foundlp;
}
static char** getfields(char* cp)
{
char* dp = NULL;
char** array;
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(1);
}
}
}
} 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(long t1, long t2)
{
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(const zic_t t1, long t2)
{
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(const struct rule* rp, int wantedy)
{
int y, m, i;
long dayoff;
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) {
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(const char* string)
{
int i;
if (strcmp(string, GRANDPARENTED) != 0) {
const char* cp = NULL;
char* wp = NULL;
* 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 != 0 && 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);
wp = NULL;
}
}
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(const char* argname)
{
char* name = NULL;
char* cp = NULL;
if (argname == NULL || *argname == '\0') {
return 0;
}
cp = name = ecpyalloc(argname);
while ((cp = strchr(cp + 1, '/')) != NULL) {
*cp = '\0';
#ifdef WIN32
* DOS drive specifier?
*/
if (isalpha((unsigned char)name[0]) && name[1] == ':' && name[2] == '\0') {
*cp = '/';
continue;
}
#endif
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) {
const char* e = gs_strerror(errno);
if (errno != EEXIST || !itsdir(name)) {
(void)fprintf(stderr, _("%s: Cannot create directory %s: %s\n"), progname, name, e);
ifree(name);
name = NULL;
cp = NULL;
return -1;
}
}
}
*cp = '/';
}
ifree(name);
name = NULL;
return 0;
}
static long eitol(int i)
{
long l;
l = i;
if ((i < 0 && l >= 0) || (i == 0 && l != 0) || (i > 0 && l <= 0)) {
(void)fprintf(stderr, _("%s: %d did not sign extend correctly\n"), progname, i);
exit(EXIT_FAILURE);
}
return l;
}
* UNIX was a registered trademark of The Open Group in 2003.
*/
#ifdef WIN32
* To run on win32
*/
int link(const char* oldpath, const char* newpath)
{
if (!CopyFile(oldpath, newpath, FALSE)) {
return -1;
}
return 0;
}
#endif
* This allows zic to compile by just returning a dummy value.
* localtime.c references it, but no one uses it from zic.
*/
int pg_open_tzfile(const char* name, char* canonname)
{
return -1;
}