static SigV4Status_t validateDateTime()

in source/sigv4.c [771:842]
56 lines of code
10 McCabe index (conditional complexity)

static SigV4Status_t validateDateTime( const SigV4DateTime_t * pDateElements )
{
    SigV4Status_t returnStatus = SigV4Success;
    const int32_t daysPerMonth[] = MONTH_DAYS;

    assert( pDateElements != NULL );

    if( pDateElements->tm_year < YEAR_MIN )
    {
        LogError( ( "Invalid 'year' value parsed from date string. "
                    "Expected an integer %ld or greater, received: %ld",
                    ( long int ) YEAR_MIN,
                    ( long int ) pDateElements->tm_year ) );
        returnStatus = SigV4ISOFormattingError;
    }

    if( ( pDateElements->tm_mon < 1 ) || ( pDateElements->tm_mon > 12 ) )
    {
        LogError( ( "Invalid 'month' value parsed from date string. "
                    "Expected an integer between 1 and 12, received: %ld",
                    ( long int ) pDateElements->tm_mon ) );
        returnStatus = SigV4ISOFormattingError;
    }

    /* Ensure that the day of the month is valid for the relevant month. */
    if( ( returnStatus != SigV4ISOFormattingError ) &&
        ( ( pDateElements->tm_mday < 1 ) ||
          ( pDateElements->tm_mday > daysPerMonth[ pDateElements->tm_mon - 1 ] ) ) )
    {
        /* Check if the date is a valid leap year day. */
        returnStatus = checkLeap( pDateElements );

        if( returnStatus == SigV4ISOFormattingError )
        {
            LogError( ( "Invalid 'day' value parsed from date string. "
                        "Expected an integer between 1 and %ld, received: %ld",
                        ( long int ) daysPerMonth[ pDateElements->tm_mon - 1 ],
                        ( long int ) pDateElements->tm_mday ) );
        }
    }

    /* SigV4DateTime_t values are asserted to be non-negative before they are
     * assigned in function addToDate(). Therefore, we only verify logical upper
     * bounds for the following values. */
    if( pDateElements->tm_hour > 23 )
    {
        LogError( ( "Invalid 'hour' value parsed from date string. "
                    "Expected an integer between 0 and 23, received: %ld",
                    ( long int ) pDateElements->tm_hour ) );
        returnStatus = SigV4ISOFormattingError;
    }

    if( pDateElements->tm_min > 59 )
    {
        LogError( ( "Invalid 'minute' value parsed from date string. "
                    "Expected an integer between 0 and 59, received: %ld",
                    ( long int ) pDateElements->tm_min ) );
        returnStatus = SigV4ISOFormattingError;
    }

    /* An upper limit of 60 accounts for the occasional leap second UTC
     * adjustment. */
    if( pDateElements->tm_sec > 60 )
    {
        LogError( ( "Invalid 'second' value parsed from date string. "
                    "Expected an integer between 0 and 60, received: %ld",
                    ( long int ) pDateElements->tm_sec ) );
        returnStatus = SigV4ISOFormattingError;
    }

    return returnStatus;
}