timelib_tzinfo *timelib_parse_tzfile(char *timezone, const timelib_tzdb *tzdb)
{
const unsigned char *tzf;
timelib_tzinfo *tmp;
int version;
if (seek_to_tz_position(&tzf, timezone, tzdb)) {
tmp = timelib_tzinfo_ctor(timezone);
version = read_preamble(&tzf, tmp);
read_header(&tzf, tmp);
read_transistions(&tzf, tmp);
read_types(&tzf, tmp);
if (version == 2) {
skip_64bit_preamble(&tzf, tmp);
read_64bit_header(&tzf, tmp);
skip_64bit_transistions(&tzf, tmp);
skip_64bit_types(&tzf, tmp);
skip_posix_string(&tzf, tmp);
}
read_location(&tzf, tmp);
} else {
tmp = NULL;
}
return tmp;
}
timelib_tzinfo *timelib_parse_tzfile(char *timezone, const timelib_tzdb *tzdb)
{
const unsigned char *tzf;
char *memmap = NULL;
size_t maplen;
timelib_tzinfo *tmp;
if (seek_to_tz_position(&tzf, timezone, &memmap, &maplen, tzdb)) {
tmp = timelib_tzinfo_ctor(timezone);
read_preamble(&tzf, tmp);
read_header(&tzf, tmp);
read_transistions(&tzf, tmp);
read_types(&tzf, tmp);
#ifdef HAVE_SYSTEM_TZDATA
if (memmap) {
const struct location_info *li;
/* TZif-style - grok the location info from the system database,
* if possible. */
if ((li = find_zone_info(system_location_table, timezone)) != NULL) {
tmp->location.comments = strdup(li->comment);
strncpy(tmp->location.country_code, li->code, 2);
tmp->location.longitude = li->longitude;
tmp->location.latitude = li->latitude;
tmp->bc = 1;
}
else {
strcpy(tmp->location.country_code, "??");
tmp->bc = 0;
tmp->location.comments = strdup("");
}
/* Now done with the mmap segment - discard it. */
munmap(memmap, maplen);
} else
#endif
{
/* PHP-style - use the embedded info. */
read_location(&tzf, tmp);
}
} else {
tmp = NULL;
}
return tmp;
}
timelib_tzinfo *timelib_parse_tzfile(char *timezone, const timelib_tzdb *tzdb)
{
const unsigned char *tzf;
timelib_tzinfo *tmp;
if (seek_to_tz_position(&tzf, timezone, tzdb)) {
tmp = timelib_tzinfo_ctor(timezone);
read_header((char**) &tzf, tmp);
read_transistions((char**) &tzf, tmp);
read_types((char**) &tzf, tmp);
} else {
tmp = NULL;
}
return tmp;
}
int timelib_timezone_id_is_valid(char *timezone, const timelib_tzdb *tzdb)
{
const unsigned char *tzf;
return (seek_to_tz_position(&tzf, timezone, tzdb));
}