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ea7b8fa240
Origin commit data
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Branch: ni/coolstream
Commit: 2f3737bbc6
Author: GetAway <get-away@t-online.de>
Date: 2022-11-15 (Tue, 15 Nov 2022)
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No further description and justification available within origin commit message!
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This commit was generated by Migit
58 lines
2.5 KiB
C
58 lines
2.5 KiB
C
/** tzif-display.h http://libhdate.sourceforge.net
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*
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* Copyright: 2012 (c) Boruch Baum <zdump@gmx.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _TZIF_DISPLAY_H_
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#define _TZIF_DISPLAY_H_
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#include <stdio.h> /// For printf, fopen, fclose, FILE
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#include <stdlib.h> /// For malloc, free
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#include <error.h> /// For error
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#include <errno.h> /// For errno
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#include <string.h> /// for memset, memcpy, memmem
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#include <sys/stat.h> /// for stat
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#include <locale.h> /// for setlocale
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#include <time.h> /// for ctime_r, tzset
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/***************************************************
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* definition of a tzfile header
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***************************************************/
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#define HEADER_LEN 44
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typedef struct {
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char magicnumber[6]; // = TZif2 or TZif\0
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// char reserved[15]; // nulls
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long unsigned ttisgmtcnt; // number of UTC/local indicators stored in the file.
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long unsigned ttisstdcnt; // number of standard/wall indicators stored in the file.
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long unsigned leapcnt; // number of leap seconds for which data is stored in the file.
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long unsigned timecnt; // number of "transition times" for which data is stored in the file.
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long unsigned typecnt; // number of "local time types" for which data is stored in the file (must not be zero).
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long unsigned charcnt; // number of characters of "timezone abbreviation strings" stored in the file.
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} timezonefileheader;
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#define TZIF1_FIELD_SIZE 4
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#define TZIF2_FIELD_SIZE 8
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long parse_tz_long( const char *sourceptr, const int field_size);
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int read_tz_header( timezonefileheader *header, const char *temp_buffer);
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char *tzif2_handle( timezonefileheader *tzh, const char *tzfile_buffer_ptr, size_t buffer_size );
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char *display_tzfile_data( const timezonefileheader tzh,
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const char* tzfile_buffer_ptr,
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const int field_size /// 4bytes for tzif1, 8bytes for tzif2
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);
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const char *get_tzif_rule(const char *filename);
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#endif
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