ws2_32: Add support and tests for WSARecvMsg and IP_PKTINFO.
r.kalbermatter at hccnet.nl
Thu Oct 14 04:16:02 CDT 2010
On Tue, Oct 13, 2010 at 16:30 PM, Erich Hoover <ehoover at mines.edu> wrote:
>> + int newsize = (int)*maxsize;
>> + /* Make sure there is at least enough room for this entry */
>> + newsize -= sizeof(WSACMSGHDR) + CMSG_ALIGN(len);
>> + if (newsize < 0)
>> + return 0;
>> + *maxsize = (ULONG)newsize;
>> Just declare it as a ULONG/size_t so you don't have to cast.
>I can obviously change this around a little bit, but the reason for this
conversion is that as a >ULONG the "if (newsize < 0)" comparison is not
going to work.
Then following code would work better:
ULONG newsize = sizeof(WSACMSGHDR) + CMSG_ALIGN(len);
/* Make sure there is at least enough room for this entry */
if (newsize > *maxsize)
/* else */
*maxsize -= newsize;
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