/**
* Convert a IPv4 address to a string
*
* @note: String is 16 bytes including terminating null
*
* @param[out] buffer : Buffer which will recieve the IPv4 string
* @param[in] ipv4_address : IPv4 address to convert
*/
static void ipv4_to_string( char buffer[16], uint32_t ipv4_address )
{
uint8_t* ip = (uint8_t*)&ipv4_address;
unsigned_to_decimal_string(ip[0], &buffer[0], 3, 3);
buffer[3] = '.';
unsigned_to_decimal_string(ip[1], &buffer[4], 3, 3);
buffer[7] = '.';
unsigned_to_decimal_string(ip[2], &buffer[8], 3, 3);
buffer[11] = '.';
unsigned_to_decimal_string(ip[3], &buffer[12], 3, 3);
}
wiced_result_t wiced_time_get_iso8601_time(wiced_iso8601_time_t* iso8601_time)
{
wiced_utc_time_ms_t utc_time_ms;
uint32_t a;
uint16_t year;
uint8_t number_of_leap_years;
uint8_t month;
uint8_t day;
uint8_t hour;
uint8_t minute;
uint64_t second;
uint16_t sub_second;
wiced_bool_t is_a_leap_year;
wiced_time_get_utc_time_ms( &utc_time_ms );
second = utc_time_ms / 1000; /* Time is in milliseconds. Convert to seconds */
sub_second = (uint16_t) (( utc_time_ms % 1000 ) * 1000 ); /* Sub-second is in microseconds */
/* Calculate year */
year = (uint16_t)( 1970 + second / SECONDS_IN_365_DAY_YEAR );
number_of_leap_years = (uint8_t) (( year - 1968 - 1 ) / 4 );
second -= (uint64_t)( (uint64_t)( year - 1970 ) * SECONDS_IN_365_DAY_YEAR );
if ( second > ( number_of_leap_years * SECONDS_IN_A_DAY ) )
{
second -= (uint64_t) ( ( number_of_leap_years * SECONDS_IN_A_DAY ) );
}
else
{
second -= (uint64_t) ( ( number_of_leap_years * SECONDS_IN_A_DAY ) + SECONDS_IN_365_DAY_YEAR );
--year;
}
/* Remember if the current year is a leap year */
is_a_leap_year = ( ( year - 1968 ) % 4 == 0 ) ? WICED_TRUE : WICED_FALSE;
/* Calculate month */
month = 1;
for ( a = 0; a < 12; ++a )
{
uint32_t seconds_per_month = secondsPerMonth[a];
/* Compensate for leap year */
if ( ( a == 1 ) && is_a_leap_year )
{
seconds_per_month += SECONDS_IN_A_DAY;
}
if ( second > seconds_per_month )
{
second -= seconds_per_month;
month++;
}
else
{
break;
}
}
/* Calculate day */
day = (uint8_t) ( second / SECONDS_IN_A_DAY );
second -= (uint64_t) ( day * SECONDS_IN_A_DAY );
++day;
/* Calculate hour */
hour = (uint8_t) ( second / SECONDS_IN_A_HOUR );
second -= (uint64_t) ( hour * SECONDS_IN_A_HOUR );
/* Calculate minute */
minute = (uint8_t) ( second / SECONDS_IN_A_MINUTE );
second -= (uint64_t) ( minute * SECONDS_IN_A_MINUTE );
/* Write iso8601 time (Note terminating nulls get overwritten intentionally) */
unsigned_to_decimal_string( year, iso8601_time->year, 4, 4 );
unsigned_to_decimal_string( month, iso8601_time->month, 2, 2 );
unsigned_to_decimal_string( day, iso8601_time->day, 2, 2 );
unsigned_to_decimal_string( hour, iso8601_time->hour, 2, 2 );
unsigned_to_decimal_string( minute, iso8601_time->minute, 2, 2 );
unsigned_to_decimal_string( (uint8_t)second, iso8601_time->second, 2, 2 );
unsigned_to_decimal_string( sub_second, iso8601_time->sub_second, 6, 6 );
iso8601_time->T = 'T';
iso8601_time->Z = 'Z';
iso8601_time->colon1 = ':';
iso8601_time->colon2 = ':';
iso8601_time->dash1 = '-';
iso8601_time->dash2 = '-';
iso8601_time->decimal = '.';
return WICED_SUCCESS;
}
