/* Copyright (C) 2007-2008 The Android Open Source Project
**
** This software is licensed under the terms of the GNU General Public
** License version 2, as published by the Free Software Foundation, and
** may be copied, distributed, and modified under those terms.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
*/
#include "android/utils/debug.h"
#include "android/utils/timezone.h"
#include "android/utils/bufprint.h"
#include "android/android.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "qemu-common.h"
#define DEBUG 1
#if 1
# define D_ACTIVE VERBOSE_CHECK(timezone)
#else
# define D_ACTIVE DEBUG
#endif
#if DEBUG
# define D(...) do { if (D_ACTIVE) fprintf(stderr, __VA_ARGS__); } while (0)
#else
# define D(...) ((void)0)
#endif
static const char* get_zoneinfo_timezone( void ); /* forward */
static char android_timezone0[256];
static const char* android_timezone;
static int android_timezone_init;
static int
check_timezone_is_zoneinfo(const char* tz)
{
const char* slash1 = NULL, *slash2 = NULL;
if (tz == NULL)
return 0;
/* the name must be of the form Area/Location or Area/Location/SubLocation */
slash1 = strchr( tz, '/' );
if (slash1 == NULL || slash1[1] == 0)
return 0;
slash2 = strchr( slash1+1, '/');
if (slash2 != NULL) {
if (slash2[1] == 0 || strchr(slash2+1, '/') != NULL)
return 0;
}
return 1;
}
int
timezone_set( const char* tzname )
{
int len;
if ( !check_timezone_is_zoneinfo(tzname) )
return -1;
len = strlen(tzname);
if (len > sizeof(android_timezone0)-1)
return -1;
strcpy( android_timezone0, tzname );
android_timezone = android_timezone0;
android_timezone_init = 1;
return 0;
}
char*
bufprint_zoneinfo_timezone( char* p, char* end )
{
const char* tz = get_zoneinfo_timezone();
if (tz == NULL || !check_timezone_is_zoneinfo(tz))
return bufprint(p, end, "Unknown/Unknown");
else
return bufprint(p, end, "%s", tz);
}
/* on OS X, the timezone directory is always /usr/share/zoneinfo
* this makes things easy.
*/
#if defined(__APPLE__)
#include <unistd.h>
#include <limits.h>
#define LOCALTIME_FILE "/etc/localtime"
#define ZONEINFO_DIR "/usr/share/zoneinfo/"
static const char*
get_zoneinfo_timezone( void )
{
if (!android_timezone_init) {
const char* tz = getenv("TZ");
char buff[PATH_MAX+1];
android_timezone_init = 1;
if (tz == NULL) {
int len = readlink(LOCALTIME_FILE, buff, sizeof(buff));
if (len < 0) {
dprint( "### WARNING: Could not read %s, something is very wrong on your system",
LOCALTIME_FILE);
return NULL;
}
buff[len] = 0;
D("%s: %s points to %s\n", __FUNCTION__, LOCALTIME_FILE, buff);
if ( memcmp(buff, ZONEINFO_DIR, sizeof(ZONEINFO_DIR)-1) ) {
dprint( "### WARNING: %s does not point to %s, can't determine zoneinfo timezone name",
LOCALTIME_FILE, ZONEINFO_DIR );
return NULL;
}
tz = buff + sizeof(ZONEINFO_DIR)-1;
if ( !check_timezone_is_zoneinfo(tz) ) {
dprint( "### WARNING: %s does not point to zoneinfo-compatible timezone name\n", LOCALTIME_FILE );
return NULL;
}
}
snprintf(android_timezone0, sizeof(android_timezone0), "%s", tz );
android_timezone = android_timezone0;
}
D( "found timezone %s", android_timezone );
return android_timezone;
}
#endif /* __APPLE__ */
/* on Linux, with glibc2, the zoneinfo directory can be changed with TZDIR environment variable
* but should be /usr/share/zoneinfo by default. /etc/localtime is not guaranteed to exist on
* all platforms, so if it doesn't, try $TZDIR/localtime, then /usr/share/zoneinfo/locatime
* ugly, isn't it ?
*
* besides, modern Linux distribution don't make /etc/localtime a symlink but a straight copy of
* the original timezone file. the only way to know which zoneinfo name to retrieve is to compare
* it with all files in $TZDIR (at least those that match Area/Location or Area/Location/SubLocation
*/
#if defined(__linux__) || defined (__FreeBSD__)
#include <unistd.h>
#include <limits.h>
#include <sys/stat.h>
#include <dirent.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#define ZONEINFO_DIR "/usr/share/zoneinfo/"
#define LOCALTIME_FILE1 "/etc/localtime"
typedef struct {
const char* localtime;
struct stat localtime_st;
char* path_end;
char* path_root;
char path[ PATH_MAX ];
} ScanDataRec;
static int
compare_timezone_to_localtime( ScanDataRec* scan,
const char* path )
{
struct stat st;
int fd1, fd2, result = 0;
D( "%s: comparing %s:", __FUNCTION__, path );
if ( stat( path, &st ) < 0 ) {
D( " can't stat: %s\n", strerror(errno) );
return 0;
}
if ( st.st_size != scan->localtime_st.st_size ) {
D( " size mistmatch (%zd != %zd)\n", (size_t)st.st_size, (size_t)scan->localtime_st.st_size );
return 0;
}
fd1 = open( scan->localtime, O_RDONLY );
if (fd1 < 0) {
D(" can't open %s: %s\n", scan->localtime, strerror(errno) );
return 0;
}
fd2 = open( path, O_RDONLY );
if (fd2 < 0) {
D(" can't open %s: %s\n", path, strerror(errno) );
close(fd1);
return 0;
}
do {
off_t nn;
for (nn = 0; nn < st.st_size; nn++) {
char temp[2];
int ret;
do { ret = read(fd1, &temp[0], 1); } while (ret < 0 && errno == EINTR);
if (ret < 0) break;
do { ret = read(fd2, &temp[1], 1); } while (ret < 0 && errno == EINTR);
if (ret < 0) break;
if (temp[0] != temp[1])
break;
}
result = (nn == st.st_size);
} while (0);
D( result ? " MATCH\n" : "no match\n" );
close(fd2);
close(fd1);
return result;
}
static const char*
scan_timezone_dir( ScanDataRec* scan,
char* top,
int depth )
{
DIR* d = opendir( scan->path );
const char* result = NULL;
D( "%s: entering '%s\n", __FUNCTION__, scan->path );
if (d != NULL) {
struct dirent* ent;
while ((ent = readdir(d)) != NULL) {
struct stat ent_st;
char* p = top;
if (ent->d_name[0] == '.') /* avoid hidden and special files */
continue;
p = bufprint( p, scan->path_end, "/%s", ent->d_name );
if (p >= scan->path_end)
continue;
//D( "%s: scanning '%s'\n", __FUNCTION__, scan->path );
if ( stat( scan->path, &ent_st ) < 0 )
continue;
if ( S_ISDIR(ent_st.st_mode) && depth < 2 )
{
//D( "%s: directory '%s'\n", __FUNCTION__, scan->path );
result = scan_timezone_dir( scan, p, depth + 1 );
if (result != NULL)
break;
}
else if ( S_ISREG(ent_st.st_mode) && (depth >= 1 && depth <= 2) )
{
char* name = scan->path_root + 1;
if ( check_timezone_is_zoneinfo( name ) )
{
if (compare_timezone_to_localtime( scan, scan->path ))
{
result = strdup( name );
D( "%s: found '%s'\n", __FUNCTION__, result );
break;
}
}
else
{
//D( "%s: ignoring '%s'\n", __FUNCTION__, scan->path );
}
}
}
closedir(d);
}
return result;
}
static const char*
get_zoneinfo_timezone( void )
{
if (!android_timezone_init)
{
const char* tz = getenv( "TZ" );
android_timezone_init = 1;
if ( tz != NULL && !check_timezone_is_zoneinfo(tz) ) {
D( "%s: ignoring non zoneinfo formatted TZ environment variable: '%s'\n",
__FUNCTION__, tz );
tz = NULL;
}
if (tz == NULL) {
char* tzdir = NULL;
int tzdirlen = 0;
char* localtime = NULL;
int len;
char temp[ PATH_MAX ];
/* determine the correct timezone directory */
{
const char* env = getenv("TZDIR");
const char* zoneinfo_dir = ZONEINFO_DIR;
if (env == NULL)
env = zoneinfo_dir;
if ( access( env, R_OK ) != 0 ) {
if ( env == zoneinfo_dir ) {
fprintf( stderr,
"### WARNING: could not find %s directory. unable to determine host timezone\n", env );
} else {
D( "%s: TZDIR does not point to valid directory, using %s instead\n",
__FUNCTION__, zoneinfo_dir );
env = zoneinfo_dir;
}
return NULL;
}
tzdir = strdup(env);
}
/* remove trailing slash, if any */
len = strlen(tzdir);
if (len > 0 && tzdir[len-1] == '/') {
tzdir[len-1] = 0;
len -= 1;
}
tzdirlen = len;
D( "%s: found timezone dir as %s\n", __FUNCTION__, tzdir );
/* try to find the localtime file */
localtime = LOCALTIME_FILE1;
if ( access( localtime, R_OK ) != 0 ) {
char *p = temp, *end = p + sizeof(temp);
p = bufprint( p, end, "%s/%s", tzdir, "localtime" );
if (p >= end || access( temp, R_OK ) != 0 ) {
fprintf( stderr, "### WARNING: could not find %s or %s. unable to determine host timezone\n",
LOCALTIME_FILE1, temp );
goto Exit;
}
localtime = temp;
}
localtime = strdup(localtime);
D( "%s: found localtime file as %s\n", __FUNCTION__, localtime );
#if 1
/* if the localtime file is a link, make a quick check */
len = readlink( localtime, temp, sizeof(temp)-1 );
if (len >= 0 && len > tzdirlen + 2) {
temp[len] = 0;
/* verify that the link points to tzdir/<something> where <something> is a valid zoneinfo name */
if ( !memcmp( temp, tzdir, tzdirlen ) && temp[tzdirlen] == '/' ) {
if ( check_timezone_is_zoneinfo( temp + tzdirlen + 1 ) ) {
/* we have it ! */
tz = temp + tzdirlen + 1;
D( "%s: found zoneinfo timezone %s from %s symlink\n", __FUNCTION__, tz, localtime );
goto Exit;
}
D( "%s: %s link points to non-zoneinfo filename %s, comparing contents\n",
__FUNCTION__, localtime, temp );
}
}
#endif
/* otherwise, parse all files under tzdir and see if we have something that looks like it */
{
ScanDataRec scan[1];
if ( stat( localtime, &scan->localtime_st ) < 0 ) {
fprintf( stderr, "### WARNING: can't access '%s', unable to determine host timezone\n",
localtime );
goto Exit;
}
scan->localtime = localtime;
scan->path_end = scan->path + sizeof(scan->path);
scan->path_root = bufprint( scan->path, scan->path_end, "%s", tzdir );
tz = scan_timezone_dir( scan, scan->path_root, 0 );
}
Exit:
if (tzdir)
free(tzdir);
if (localtime)
free(localtime);
if (tz == NULL)
return NULL;
snprintf(android_timezone0, sizeof(android_timezone0), "%s", tz);
android_timezone = android_timezone0;
}
D( "found timezone %s\n", android_timezone );
}
return android_timezone;
}
#endif /* __linux__ */
/* on Windows, we need to translate the Windows timezone into a ZoneInfo one */
#ifdef _WIN32
#include <time.h>
typedef struct {
const char* win_name;
const char* zoneinfo_name;
} Win32Timezone;
/* table generated from http://unicode.org/cldr/data/diff/supplemental/windows_tzid.html */
static const Win32Timezone _win32_timezones[] = {
{ "AUS Central Standard Time" , "Australia/Darwin" },
{ "AUS Eastern Standard Time" , "Australia/Sydney" },
{ "Acre Standard Time" , "America/Rio_Branco" },
{ "Afghanistan Standard Time" , "Asia/Kabul" },
{ "Africa_Central Standard Time" , "Africa/Kigali" },
{ "Africa_Eastern Standard Time" , "Africa/Kampala" },
{ "Africa_FarWestern Standard Time" , "Africa/El_Aaiun" },
{ "Africa_Southern Standard Time" , "Africa/Johannesburg" },
{ "Africa_Western Standard Time" , "Africa/Niamey" },
{ "Aktyubinsk Standard Time" , "Asia/Aqtobe" },
{ "Alaska Standard Time" , "America/Juneau" },
{ "Alaska_Hawaii Standard Time" , "America/Anchorage" },
{ "Alaskan Standard Time" , "America/Anchorage" },
{ "Almaty Standard Time" , "Asia/Almaty" },
{ "Amazon Standard Time" , "America/Manaus" },
{ "America_Central Standard Time" , "America/Winnipeg" },
{ "America_Eastern Standard Time" , "America/Panama" },
{ "America_Mountain Standard Time" , "America/Edmonton" },
{ "America_Pacific Standard Time" , "America/Vancouver" },
{ "Anadyr Standard Time" , "Asia/Anadyr" },
{ "Aqtau Standard Time" , "Asia/Aqtau" },
{ "Aqtobe Standard Time" , "Asia/Aqtobe" },
{ "Arab Standard Time" , "Asia/Riyadh" },
{ "Arabian Standard Time" , "Asia/Bahrain" },
{ "Arabic Standard Time" , "Asia/Baghdad" },
{ "Argentina Standard Time" , "America/Buenos_Aires" },
{ "Argentina_Western Standard Time" , "America/Mendoza" },
{ "Armenia Standard Time" , "Asia/Yerevan" },
{ "Ashkhabad Standard Time" , "Asia/Ashgabat" },
{ "Atlantic Standard Time" , "America/Curacao" },
{ "Australia_Central Standard Time" , "Australia/Adelaide" },
{ "Australia_CentralWestern Standard Time", "Australia/Eucla" },
{ "Australia_Eastern Standard Time" , "Australia/Sydney" },
{ "Australia_Western Standard Time" , "Australia/Perth" },
{ "Azerbaijan Standard Time" , "Asia/Baku" },
{ "Azores Standard Time" , "Atlantic/Azores" },
{ "Baku Standard Time" , "Asia/Baku" },
{ "Bangladesh Standard Time" , "Asia/Dhaka" },
{ "Bering Standard Time" , "America/Adak" },
{ "Bhutan Standard Time" , "Asia/Thimphu" },
{ "Bolivia Standard Time" , "America/La_Paz" },
{ "Borneo Standard Time" , "Asia/Kuching" },
{ "Brasilia Standard Time" , "America/Sao_Paulo" },
{ "British Standard Time" , "Europe/London" },
{ "Brunei Standard Time" , "Asia/Brunei" },
{ "Canada Central Standard Time" , "America/Regina" },
{ "Cape Verde Standard Time" , "Atlantic/Cape_Verde" },
{ "Cape_Verde Standard Time" , "Atlantic/Cape_Verde" },
{ "Caucasus Standard Time" , "Asia/Yerevan" },
{ "Cen. Australia Standard Time" , "Australia/Adelaide" },
{ "Central Standard Time" , "America/Chicago" },
{ "Central America Standard Time" , "America/Guatemala" },
{ "Central Asia Standard Time" , "Asia/Dhaka" },
{ "Central Brazilian Standard Time" , "America/Manaus" },
{ "Central Europe Standard Time" , "Europe/Prague" },
{ "Central European Standard Time" , "Europe/Warsaw" },
{ "Central Pacific Standard Time" , "Pacific/Guadalcanal" },
{ "Central Standard Time (Mexico)" , "America/Mexico_City" },
{ "Chamorro Standard Time" , "Pacific/Guam" },
{ "Changbai Standard Time" , "Asia/Harbin" },
{ "Chatham Standard Time" , "Pacific/Chatham" },
{ "Chile Standard Time" , "America/Santiago" },
{ "China Standard Time" , "Asia/Taipei" },
{ "Choibalsan Standard Time" , "Asia/Choibalsan" },
{ "Christmas Standard Time" , "Indian/Christmas" },
{ "Cocos Standard Time" , "Indian/Cocos" },
{ "Colombia Standard Time" , "America/Bogota" },
{ "Cook Standard Time" , "Pacific/Rarotonga" },
{ "Cuba Standard Time" , "America/Havana" },
{ "Dacca Standard Time" , "Asia/Dhaka" },
{ "Dateline Standard Time" , "Pacific/Kwajalein" },
{ "Davis Standard Time" , "Antarctica/Davis" },
{ "Dominican Standard Time" , "America/Santo_Domingo" },
{ "DumontDUrville Standard Time" , "Antarctica/DumontDUrville" },
{ "Dushanbe Standard Time" , "Asia/Dushanbe" },
{ "Dutch_Guiana Standard Time" , "America/Paramaribo" },
{ "E. Africa Standard Time" , "Africa/Nairobi" },
{ "E. Australia Standard Time" , "Australia/Brisbane" },
{ "E. Europe Standard Time" , "Europe/Minsk" },
{ "E. South America Standard Time" , "America/Sao_Paulo" },
{ "East_Timor Standard Time" , "Asia/Dili" },
{ "Easter Standard Time" , "Pacific/Easter" },
{ "Eastern Standard Time" , "America/New_York" },
{ "Ecuador Standard Time" , "America/Guayaquil" },
{ "Egypt Standard Time" , "Africa/Cairo" },
{ "Ekaterinburg Standard Time" , "Asia/Yekaterinburg" },
{ "Europe_Central Standard Time" , "Europe/Oslo" },
{ "Europe_Eastern Standard Time" , "Europe/Vilnius" },
{ "Europe_Western Standard Time" , "Atlantic/Canary" },
{ "FLE Standard Time" , "Europe/Helsinki" },
{ "Falkland Standard Time" , "Atlantic/Stanley" },
{ "Fiji Standard Time" , "Pacific/Fiji" },
{ "French_Guiana Standard Time" , "America/Cayenne" },
{ "French_Southern Standard Time" , "Indian/Kerguelen" },
{ "Frunze Standard Time" , "Asia/Bishkek" },
{ "GMT Standard Time" , "Europe/Dublin" },
{ "GTB Standard Time" , "Europe/Istanbul" },
{ "Galapagos Standard Time" , "Pacific/Galapagos" },
{ "Gambier Standard Time" , "Pacific/Gambier" },
{ "Georgia Standard Time" , "Asia/Tbilisi" },
{ "Georgian Standard Time" , "Asia/Tbilisi" },
{ "Gilbert_Islands Standard Time" , "Pacific/Tarawa" },
{ "Goose_Bay Standard Time" , "America/Goose_Bay" },
{ "Greenland Standard Time" , "America/Godthab" },
{ "Greenland_Central Standard Time" , "America/Scoresbysund" },
{ "Greenland_Eastern Standard Time" , "America/Scoresbysund" },
{ "Greenland_Western Standard Time" , "America/Godthab" },
{ "Greenwich Standard Time" , "Africa/Casablanca" },
{ "Guam Standard Time" , "Pacific/Guam" },
{ "Gulf Standard Time" , "Asia/Muscat" },
{ "Guyana Standard Time" , "America/Guyana" },
{ "Hawaii_Aleutian Standard Time" , "Pacific/Honolulu" },
{ "Hawaiian Standard Time" , "Pacific/Honolulu" },
{ "Hong_Kong Standard Time" , "Asia/Hong_Kong" },
{ "Hovd Standard Time" , "Asia/Hovd" },
{ "India Standard Time" , "Asia/Calcutta" },
{ "Indian_Ocean Standard Time" , "Indian/Chagos" },
{ "Indochina Standard Time" , "Asia/Vientiane" },
{ "Indonesia_Central Standard Time" , "Asia/Makassar" },
{ "Indonesia_Eastern Standard Time" , "Asia/Jayapura" },
{ "Indonesia_Western Standard Time" , "Asia/Jakarta" },
{ "Iran Standard Time" , "Asia/Tehran" },
{ "Irish Standard Time" , "Europe/Dublin" },
{ "Irkutsk Standard Time" , "Asia/Irkutsk" },
{ "Israel Standard Time" , "Asia/Jerusalem" },
{ "Japan Standard Time" , "Asia/Tokyo" },
{ "Jordan Standard Time" , "Asia/Amman" },
{ "Kamchatka Standard Time" , "Asia/Kamchatka" },
{ "Karachi Standard Time" , "Asia/Karachi" },
{ "Kashgar Standard Time" , "Asia/Kashgar" },
{ "Kazakhstan_Eastern Standard Time" , "Asia/Almaty" },
{ "Kazakhstan_Western Standard Time" , "Asia/Aqtobe" },
{ "Kizilorda Standard Time" , "Asia/Qyzylorda" },
{ "Korea Standard Time" , "Asia/Seoul" },
{ "Kosrae Standard Time" , "Pacific/Kosrae" },
{ "Krasnoyarsk Standard Time" , "Asia/Krasnoyarsk" },
{ "Kuybyshev Standard Time" , "Europe/Samara" },
{ "Kwajalein Standard Time" , "Pacific/Kwajalein" },
{ "Kyrgystan Standard Time" , "Asia/Bishkek" },
{ "Lanka Standard Time" , "Asia/Colombo" },
{ "Liberia Standard Time" , "Africa/Monrovia" },
{ "Line_Islands Standard Time" , "Pacific/Kiritimati" },
{ "Long_Shu Standard Time" , "Asia/Chongqing" },
{ "Lord_Howe Standard Time" , "Australia/Lord_Howe" },
{ "Macau Standard Time" , "Asia/Macau" },
{ "Magadan Standard Time" , "Asia/Magadan" },
{ "Malaya Standard Time" , "Asia/Kuala_Lumpur" },
{ "Malaysia Standard Time" , "Asia/Kuching" },
{ "Maldives Standard Time" , "Indian/Maldives" },
{ "Marquesas Standard Time" , "Pacific/Marquesas" },
{ "Marshall_Islands Standard Time" , "Pacific/Majuro" },
{ "Mauritius Standard Time" , "Indian/Mauritius" },
{ "Mawson Standard Time" , "Antarctica/Mawson" },
{ "Mexico Standard Time" , "America/Mexico_City" },
{ "Mexico Standard Time 2 Standard Time" , "America/Chihuahua" },
{ "Mid-Atlantic Standard Time" , "America/Noronha" },
{ "Middle East Standard Time" , "Asia/Beirut" },
{ "Mongolia Standard Time" , "Asia/Ulaanbaatar" },
{ "Montevideo Standard Time" , "America/Montevideo" },
{ "Moscow Standard Time" , "Europe/Moscow" },
{ "Mountain Standard Time" , "America/Denver" },
{ "Mountain Standard Time (Mexico)" , "America/Chihuahua" },
{ "Myanmar Standard Time" , "Asia/Rangoon" },
{ "N. Central Asia Standard Time" , "Asia/Novosibirsk" },
{ "Namibia Standard Time" , "Africa/Windhoek" },
{ "Nauru Standard Time" , "Pacific/Nauru" },
{ "Nepal Standard Time" , "Asia/Katmandu" },
{ "New Zealand Standard Time" , "Pacific/Auckland" },
{ "New_Caledonia Standard Time" , "Pacific/Noumea" },
{ "New_Zealand Standard Time" , "Pacific/Auckland" },
{ "Newfoundland Standard Time" , "America/St_Johns" },
{ "Niue Standard Time" , "Pacific/Niue" },
{ "Norfolk Standard Time" , "Pacific/Norfolk" },
{ "Noronha Standard Time" , "America/Noronha" },
{ "North Asia Standard Time" , "Asia/Krasnoyarsk" },
{ "North Asia East Standard Time" , "Asia/Ulaanbaatar" },
{ "North_Mariana Standard Time" , "Pacific/Saipan" },
{ "Novosibirsk Standard Time" , "Asia/Novosibirsk" },
{ "Omsk Standard Time" , "Asia/Omsk" },
{ "Oral Standard Time" , "Asia/Oral" },
{ "Pacific Standard Time" , "America/Los_Angeles" },
{ "Pacific SA Standard Time" , "America/Santiago" },
{ "Pacific Standard Time (Mexico)" , "America/Tijuana" },
{ "Pakistan Standard Time" , "Asia/Karachi" },
{ "Palau Standard Time" , "Pacific/Palau" },
{ "Papua_New_Guinea Standard Time" , "Pacific/Port_Moresby" },
{ "Paraguay Standard Time" , "America/Asuncion" },
{ "Peru Standard Time" , "America/Lima" },
{ "Philippines Standard Time" , "Asia/Manila" },
{ "Phoenix_Islands Standard Time" , "Pacific/Enderbury" },
{ "Pierre_Miquelon Standard Time" , "America/Miquelon" },
{ "Pitcairn Standard Time" , "Pacific/Pitcairn" },
{ "Ponape Standard Time" , "Pacific/Ponape" },
{ "Qyzylorda Standard Time" , "Asia/Qyzylorda" },
{ "Reunion Standard Time" , "Indian/Reunion" },
{ "Romance Standard Time" , "Europe/Paris" },
{ "Rothera Standard Time" , "Antarctica/Rothera" },
{ "Russian Standard Time" , "Europe/Moscow" },
{ "SA Eastern Standard Time" , "America/Buenos_Aires" },
{ "SA Pacific Standard Time" , "America/Bogota" },
{ "SA Western Standard Time" , "America/Caracas" },
{ "SE Asia Standard Time" , "Asia/Bangkok" },
{ "Sakhalin Standard Time" , "Asia/Sakhalin" },
{ "Samara Standard Time" , "Europe/Samara" },
{ "Samarkand Standard Time" , "Asia/Samarkand" },
{ "Samoa Standard Time" , "Pacific/Apia" },
{ "Seychelles Standard Time" , "Indian/Mahe" },
{ "Shevchenko Standard Time" , "Asia/Aqtau" },
{ "Singapore Standard Time" , "Asia/Singapore" },
{ "Solomon Standard Time" , "Pacific/Guadalcanal" },
{ "South Africa Standard Time" , "Africa/Johannesburg" },
{ "South_Georgia Standard Time" , "Atlantic/South_Georgia" },
{ "Sri Lanka Standard Time" , "Asia/Colombo" },
{ "Suriname Standard Time" , "America/Paramaribo" },
{ "Sverdlovsk Standard Time" , "Asia/Yekaterinburg" },
{ "Syowa Standard Time" , "Antarctica/Syowa" },
{ "Tahiti Standard Time" , "Pacific/Tahiti" },
{ "Taipei Standard Time" , "Asia/Taipei" },
{ "Tajikistan Standard Time" , "Asia/Dushanbe" },
{ "Tashkent Standard Time" , "Asia/Tashkent" },
{ "Tasmania Standard Time" , "Australia/Hobart" },
{ "Tbilisi Standard Time" , "Asia/Tbilisi" },
{ "Tokelau Standard Time" , "Pacific/Fakaofo" },
{ "Tokyo Standard Time" , "Asia/Tokyo" },
{ "Tonga Standard Time" , "Pacific/Tongatapu" },
{ "Truk Standard Time" , "Pacific/Truk" },
{ "Turkey Standard Time" , "Europe/Istanbul" },
{ "Turkmenistan Standard Time" , "Asia/Ashgabat" },
{ "Tuvalu Standard Time" , "Pacific/Funafuti" },
{ "US Eastern Standard Time" , "America/Indianapolis" },
{ "US Mountain Standard Time" , "America/Phoenix" },
{ "Uralsk Standard Time" , "Asia/Oral" },
{ "Uruguay Standard Time" , "America/Montevideo" },
{ "Urumqi Standard Time" , "Asia/Urumqi" },
{ "Uzbekistan Standard Time" , "Asia/Tashkent" },
{ "Vanuatu Standard Time" , "Pacific/Efate" },
{ "Venezuela Standard Time" , "America/Caracas" },
{ "Vladivostok Standard Time" , "Asia/Vladivostok" },
{ "Volgograd Standard Time" , "Europe/Volgograd" },
{ "Vostok Standard Time" , "Antarctica/Vostok" },
{ "W. Australia Standard Time" , "Australia/Perth" },
{ "W. Central Africa Standard Time" , "Africa/Lagos" },
{ "W. Europe Standard Time" , "Europe/Berlin" },
{ "Wake Standard Time" , "Pacific/Wake" },
{ "Wallis Standard Time" , "Pacific/Wallis" },
{ "West Asia Standard Time" , "Asia/Karachi" },
{ "West Pacific Standard Time" , "Pacific/Guam" },
{ "Yakutsk Standard Time" , "Asia/Yakutsk" },
{ "Yekaterinburg Standard Time" , "Asia/Yekaterinburg" },
{ "Yerevan Standard Time" , "Asia/Yerevan" },
{ "Yukon Standard Time" , "America/Yakutat" },
{ NULL, NULL }
};
static const char*
get_zoneinfo_timezone( void )
{
if (!android_timezone_init)
{
char tzname[128];
time_t t = time(NULL);
struct tm* tm = localtime(&t);
const Win32Timezone* win32tz = _win32_timezones;
android_timezone_init = 1;
if (!tm) {
D("%s: could not determine current date/time\n", __FUNCTION__);
return NULL;
}
memset(tzname, 0, sizeof(tzname));
strftime(tzname, sizeof(tzname) - 1, "%Z", tm);
for (win32tz = _win32_timezones; win32tz->win_name != NULL; win32tz++)
if ( !strcmp(win32tz->win_name, tzname) ) {
android_timezone = win32tz->zoneinfo_name;
goto Exit;
}
#if 0 /* TODO */
/* we didn't find it, this may come from localized versions of Windows. we're going to explore the registry,
* as the code in Postgresql does...
*/
#endif
D( "%s: could not determine current timezone\n", __FUNCTION__ );
return NULL;
}
Exit:
D( "emulator: found timezone %s\n", android_timezone );
return android_timezone;
}
#endif /* _WIN32 */