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Fix UTI_DoubleToInt32 to check for overflow

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Miroslav Lichvar
2013-06-05 13:05:54 +02:00
parent 2ceb3c89ca
commit 8eb7ce8581
1 changed files with 6 additions and 0 deletions
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6
util.c
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@@ -479,9 +479,15 @@ UTI_Int32ToDouble(NTP_int32 x)
/* ================================================== */
#define MAX_NTP_INT32 (4294967295.0 / 65536.0)
NTP_int32
UTI_DoubleToInt32(double x)
{
if (x > MAX_NTP_INT32)
x = MAX_NTP_INT32;
else if (x < 0)
x = 0.0;
return htonl((NTP_int32)(0.5 + 65536.0 * x));
}