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      1 /*
      2 **********************************************************************
      3 * Copyright (c) 2003-2010, International Business Machines
      4 * Corporation and others.  All Rights Reserved.
      5 **********************************************************************
      6 * Author: Alan Liu
      7 * Created: July 10 2003
      8 * Since: ICU 2.8
      9 **********************************************************************
     10 */
     11 
     12 #ifndef _TZ2ICU_H_
     13 #define _TZ2ICU_H_
     14 
     15 /* We have modified the zoneinfo binary format (we write raw offset
     16  * and DST offset separately instead of their sum) so we notate the
     17  * file with a distinct signature.  This prevents someone from trying
     18  * to use our output files as normal zoneinfo files, and also prevents
     19  * someone from trying to use normal zoneinfo files for ICU.  We also
     20  * use the first byte of the reserved section as a version integer, to
     21  * be incremented each time the data format changes.
     22  */
     23 
     24 #define TZ_ICU_MAGIC "TZic" /* cf. TZ_MAGIC = "TZif" */
     25 
     26 typedef unsigned char ICUZoneinfoVersion;
     27 
     28 #define TZ_ICU_VERSION ((ICUZoneinfoVersion) 1)
     29 
     30 /* File into which we will write supplemental ICU data.  This allows
     31  * zic to communicate final zone data to tz2icu. */
     32 #define ICU_ZONE_FILE "icu_zone.txt"
     33 
     34 /* File containing legacy aliases.  Read by tz2icu. */
     35 #define ICU_TZ_ALIAS  "tz.alias"
     36 
     37 /* Output resource name.  This determines both the file name and the
     38  * resource name within the file.  That is, the output will be to the
     39  * file ICU_TZ_RESOURCE ".txt" and the resource within it will be
     40  * ICU_TZ_RESOURCE. */
     41 #define ICU_TZ_RESOURCE_OLD "zoneinfo"
     42 #define ICU_TZ_RESOURCE "zoneinfo64"
     43 
     44 #endif
     45