The Zune Bug
Here's the offending code for Zune bug that's been causing the mysterious hangs. Can you find it without looking at the solution?
//------------------------------------------------------------------------------
//
// Function: ConvertDays
//
// Local helper function that split total days since Jan 1, ORIGINYEAR into
// year, month and day
//
// Parameters:
//
// Returns:
// Returns TRUE if successful, otherwise returns FALSE.
//
//------------------------------------------------------------------------------
BOOL ConvertDays(UINT32 days, SYSTEMTIME* lpTime)
{
int dayofweek, month, year;
UINT8 *month_tab; //Calculate current day of the week
dayofweek = GetDayOfWeek(days); year = ORIGINYEAR; while (days > 365)
{
if (IsLeapYear(year))
{
if (days > 366)
{
days -= 366;
year += 1;
}
}
else
{
days -= 365;
year += 1;
}
}
// Determine whether it is a leap year
month_tab = (UINT8 *)((IsLeapYear(year))? monthtable_leap : monthtable); for (month=0; month< 12; month++)
{
if (days < = month_tab[month])
break;
days -= month_tab[month];
} month += 1; lpTime- >wDay = days;
lpTime- >wDayOfWeek = dayofweek;
lpTime- >wMonth = month;
lpTime- >wYear = year; return TRUE;
}