[lwip-users] [lwip] tcp_input() help

[ajay kapoor]

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Hi,

I am using the vc++ version of lwip stack. There seems to be problem with the 
below function in tcp_input().

//   pbuf_header(p, -(IPH_HL(iphdr) * 4/sizeof(s8_t)));

when i replace the - sign with * -1 it seems to work fine.

pbuf_header(p, (IPH_HL(iphdr) * 4/sizeof(u8_t))* -1);

is it ok to do that. 

also the tcp checksum function inet_chksum_pseudo() is failing.

any suggestions. please help

-Aj

 

 



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<P>Hi,</P>
<P>I am using the vc++ version of lwip stack. There seems to be problem with 
the below function in tcp_input().</P>
<P>//&nbsp;&nbsp; pbuf_header(p, -(IPH_HL(iphdr) * 4/sizeof(s8_t)));</P>
<P>when i replace the - sign with * -1 it seems to work fine.</P>
<P>pbuf_header(p, (IPH_HL(iphdr) * 4/sizeof(u8_t))* -1);</P>
<P>is it ok to do that. </P>
<P>also the tcp checksum function inet_chksum_pseudo() is failing.</P>
<P>any suggestions. please help</P>
<P>-Aj</P>
<P>&nbsp;</P>
<P>&nbsp;</P><p><br><hr size=1>Do you Yahoo!?<br>
New <a href="http://rd.yahoo.com/evt=1207/*http://sbc.yahoo.com/";>DSL Internet 
Access</a> from SBC & Yahoo!</a>
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