[Winpcap-users] error compiling udp = (udp_header*)((u_char*)ip +ip_len);

[Gianluca Varenni]

you declared udp in the wrong way. you probably wrote

...
udp_header udp;
...

while it should be

udp_header *udp;

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).

GV



  ----- Original Message ----- 
  From: Ziara . 
  To: winpcap 
  Sent: Thursday, March 13, 2008 12:00 PM
  Subject: [Winpcap-users] error compiling udp = (udp_header*)((u_char*)ip +ip_len); 


  Hello, i'm compiling my application in builder c++ v6 and when I add:
   
  u_int ip_len = (ip->ver_ihl & 0xf) * 4; //Longitud de Ip header
  udp = (udp_header*)((u_char*)ip + ip_len);
   
  where ip_header *ip;
   
  I have a error in the line number two:
   
  cannot convert udp_header*  to udp_header
   
  I don't know what happend. Someone know?
   
  thanks in advanced


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