/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2001-2002 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _LIBZONEINFO_H
#define _LIBZONEINFO_H

/*
 * WARNING:
 *
 * The interfaces defined in this header file are for Sun private use only.
 * The contents of this file are subject to change without notice for the
 * future releases.
 */

/*
 * Declarations for the functions in libzoneinfo
 */

#ifdef  __cplusplus
extern "C" {
#endif

#define _TZBUFLEN       128             /* timezone name buffer length */
#define _CCBUFLEN       32              /* country code buffer length */

#define _GMT_MAX        (12*60*60)      /* The maximum GMT offset */
#define _GMT_MIN        (-13*60*60)     /* The minimum GMT offset */

#define _VTZ_INSTALL    0               /* zoneinfo or POSIX offset-from-GMT */
#define _VTZ_ALL        1               /* zoneinfo or POSIX */
#define _VTZ_POSIX      2               /* POSIX timezone */
#define _VTZ_ZONEINFO   3               /* zoneinfo timezone */

struct tz_timezone {
        char tz_name[_TZBUFLEN];        /* timezone name */
        char tz_oname[_TZBUFLEN];
        char *tz_id_desc;               /* timezone description */
        char *tz_display_desc;          /* l10n timezone description */
        struct tz_coord {               /* coordinates */
                int lat_sign;
                unsigned int lat_degree;
                unsigned int lat_minute;
                unsigned int lat_second;
                int long_sign;
                unsigned int long_degree;
                unsigned int long_minute;
                unsigned int long_second;
        } tz_coord;
        struct tz_timezone *tz_next;    /* pointer to next element */
        void *tz_reserved;              /* reserved */
};

struct tz_continent {
        char ctnt_name[_TZBUFLEN];      /* continent name */
        char *ctnt_id_desc;             /* continent name (descriptive) */
        char *ctnt_display_desc;        /* localized continent name */
        struct tz_continent *ctnt_next; /* pointer to next element */
        void *ctnt_reserved;            /* reserved */
};

struct tz_country {
        char ctry_code[_CCBUFLEN];      /* country code */
        char *ctry_id_desc;             /* country name (descriptive) */
        char *ctry_display_desc;        /* localized country name */
        int  ctry_status;               /* private use */
        struct tz_country *ctry_next;   /* pointer to next element */
        void *ctry_reserved;            /* reserved */
};

extern int get_tz_continents(struct tz_continent **);
extern int get_tz_countries(struct tz_country **, struct tz_continent *);
extern int get_timezones_by_country(struct tz_timezone **, struct tz_country *);
extern int free_tz_continents(struct tz_continent *);
extern int free_tz_countries(struct tz_country *);
extern int free_timezones(struct tz_timezone *);
extern char *conv_gmt(int, int);
extern char *get_system_tz(char *);
extern int set_system_tz(char *, char *);
extern int isvalid_tz(char *, char *, int);

#ifdef  __cplusplus
}
#endif

#endif /* _LIBZONEINFO_H */