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You are right! sorry, it was a slip-up (I think it say in this way). I think I write upd_header *udp, but now I have checked the code and I have realised my error.<BR>
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thanks<BR><BR><BR>
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From: gianluca.varenni@cacetech.com<BR>To: winpcap-users@winpcap.org<BR>Subject: Re: [Winpcap-users] error compiling udp = (udp_header*)((u_char*)ip +ip_len); <BR>Date: Thu, 13 Mar 2008 15:30:11 -0700<BR><BR>
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<DIV><FONT face="Courier New">you declared udp in the wrong way. you probably wrote</FONT></DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New">...</FONT></DIV>
<DIV><FONT face="Courier New">udp_header udp;</FONT></DIV>
<DIV><FONT face="Courier New">...</FONT></DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New">while it should be</FONT></DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New">udp_header *udp;</FONT></DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New">BTW, the error message from the compiler tells you what you are doing wrong: you are converting a "udp_header*" (the right side of the assignment) to a "udp_header" type (left hand side of the assignment).</FONT></DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New">GV</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=essence_z@hotmail.com href="mailto:essence_z@hotmail.com">Ziara .</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=winpcap-users@winpcap.org href="mailto:winpcap-users@winpcap.org">winpcap</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, March 13, 2008 12:00 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [Winpcap-users] error compiling udp = (udp_header*)((u_char*)ip +ip_len); </DIV>
<DIV><BR></DIV>Hello, i'm compiling my application in builder c++ v6 and when I add:<BR> <BR>u_int ip_len = (ip->ver_ihl & 0xf) * 4; //Longitud de Ip header<BR>udp = (udp_header*)((u_char*)ip + ip_len);<BR> <BR>where ip_header *ip;<BR> <BR>I have a error in the line number two:<BR> <BR>cannot convert udp_header* to udp_header<BR> <BR>I don't know what happend. Someone know?<BR> <BR>thanks in advanced<BR><BR>
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