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author | Vladislav Vaintroub <wlad@mariadb.com> | 2019-04-29 22:57:21 +0200 |
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committer | Vladislav Vaintroub <wlad@mariadb.com> | 2019-04-30 09:16:39 +0200 |
commit | a8793a2c02f805a4a1c4dbd1416b594169b77541 (patch) | |
tree | 066ee000d13ed8ee30c5372d75698dc005309425 /sql/mysqld.cc | |
parent | ba9f8776c2803ac6273499e5a0e069998a23c88b (diff) | |
download | mariadb-git-a8793a2c02f805a4a1c4dbd1416b594169b77541.tar.gz |
MDEV-19243 Fix timezone handling on Windows to report standard timezone names
Diffstat (limited to 'sql/mysqld.cc')
-rw-r--r-- | sql/mysqld.cc | 49 |
1 files changed, 36 insertions, 13 deletions
diff --git a/sql/mysqld.cc b/sql/mysqld.cc index 8d464ed75e6..cf76a6a4c5c 100644 --- a/sql/mysqld.cc +++ b/sql/mysqld.cc @@ -4009,6 +4009,39 @@ static int init_early_variables() return 0; } +#ifdef _WIN32 +static void get_win_tzname(char* buf, size_t size) +{ + static struct + { + const wchar_t* windows_name; + const char* tzdb_name; + } + tz_data[] = + { +#include "win_tzname_data.h" + {0,0} + }; + DYNAMIC_TIME_ZONE_INFORMATION tzinfo; + if (GetDynamicTimeZoneInformation(&tzinfo) == TIME_ZONE_ID_UNKNOWN) + { + strncpy(buf, "unknown", size); + return; + } + + for (size_t i= 0; tz_data[i].windows_name; i++) + { + if (wcscmp(tzinfo.TimeZoneKeyName, tz_data[i].windows_name) == 0) + { + strncpy(buf, tz_data[i].tzdb_name, size); + return; + } + } + wcstombs(buf, tzinfo.TimeZoneKeyName, size); + buf[size-1]= 0; + return; +} +#endif static int init_common_variables() { @@ -4053,23 +4086,13 @@ static int init_common_variables() if (ignore_db_dirs_init()) return 1; - -#ifdef HAVE_TZNAME +#ifdef _WIN32 + get_win_tzname(system_time_zone, sizeof(system_time_zone)); +#elif defined(HAVE_TZNAME) struct tm tm_tmp; localtime_r(&server_start_time,&tm_tmp); const char *tz_name= tzname[tm_tmp.tm_isdst != 0 ? 1 : 0]; -#ifdef _WIN32 - /* - Time zone name may be localized and contain non-ASCII characters, - Convert from ANSI encoding to UTF8. - */ - wchar_t wtz_name[sizeof(system_time_zone)]; - mbstowcs(wtz_name, tz_name, sizeof(system_time_zone)-1); - WideCharToMultiByte(CP_UTF8,0, wtz_name, -1, system_time_zone, - sizeof(system_time_zone) - 1, NULL, NULL); -#else strmake_buf(system_time_zone, tz_name); -#endif /* _WIN32 */ #endif /* HAVE_TZNAME */ /* |