static dc_status_t
hw_ostc_parser_get_datetime (dc_parser_t *abstract, dc_datetime_t *datetime)
{
hw_ostc_parser_t *parser = (hw_ostc_parser_t *) abstract;
const unsigned char *data = abstract->data;
unsigned int size = abstract->size;
// Cache the header data.
dc_status_t rc = hw_ostc_parser_cache (parser);
if (rc != DC_STATUS_SUCCESS)
return rc;
unsigned int version = parser->version;
const hw_ostc_layout_t *layout = parser->layout;
unsigned int divetime = 0;
if (version > 0x20) {
// Use the dive time stored in the extended header, rounded down towards
// the nearest minute, to match the value displayed by the ostc.
divetime = (array_uint16_le (data + layout->duration) / 60) * 60;
} else {
// Use the normal dive time (excluding the shallow parts of the dive).
divetime = array_uint16_le (data + layout->divetime) * 60 + data[layout->divetime + 2];
}
const unsigned char *p = data + layout->datetime;
dc_datetime_t dt;
if (version == 0x23) {
dt.year = p[0] + 2000;
dt.month = p[1];
dt.day = p[2];
} else {
dt.year = p[2] + 2000;
dt.month = p[0];
dt.day = p[1];
}
dt.hour = p[3];
dt.minute = p[4];
dt.second = 0;
dc_ticks_t ticks = dc_datetime_mktime (&dt);
if (ticks == (dc_ticks_t) -1)
return DC_STATUS_DATAFORMAT;
ticks -= divetime;
if (!dc_datetime_localtime (datetime, ticks))
return DC_STATUS_DATAFORMAT;
return DC_STATUS_SUCCESS;
}
static dc_status_t
reefnet_sensus_parser_get_datetime (dc_parser_t *abstract, dc_datetime_t *datetime)
{
reefnet_sensus_parser_t *parser = (reefnet_sensus_parser_t *) abstract;
if (abstract->size < 2 + 4)
return DC_STATUS_DATAFORMAT;
unsigned int timestamp = array_uint32_le (abstract->data + 2);
dc_ticks_t ticks = parser->systime - (parser->devtime - timestamp);
if (!dc_datetime_localtime (datetime, ticks))
return DC_STATUS_DATAFORMAT;
return DC_STATUS_SUCCESS;
}
