tcpdump mailing list archives
Re: pcap_loop
From: khaled <kor.khaled () gmail com>
Date: Tue, 3 Jun 2008 14:56:16 +0200
thank you but exist an other methode? who uses C 2008/6/3 Michael Krüger <mickrulist () voipfuture com>:
Am Dienstag, 3. Juni 2008 10:13:49 schrieb m. kh:HI how to use a the last argument of pcap_loop ? in my program i use : u_char *user; user="the message "; pcap_loop(handle, -1, (pcap_handler) callback ,user);but not succe ,help me give me example ?Well this is very useful if you use C++ class instances. In that case you are able to pass the class instance pointer to the method, so that a specific class instance is called by the pcap_loop method. CMyConsumer consumer; ... pcap_loop(handle, -1, (pcap_handler) callback , &consumer); ... The consumer class needs to have a static member like processData... which does take the packet data as well as the user parameter: ... // this is within the pcap_handler method CMyConsumer::processData(user /*which is the user data*/, pcap_t* data /*which is the packet data*/ ... The static processData method can now invoke a instance private method of the class to process the data: void CMyConsumer::processData(void* instance, pcap_t* data) { ((CMyConsumer* )instance)->processInternal(data); ... } Regards, Michael - This is the tcpdump-workers list. Visit https://cod.sandelman.ca/ to unsubscribe.
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Current thread:
- pcap_loop m. kh (Jun 03)
- Re: pcap_loop Michael Krüger (Jun 03)
- Re: pcap_loop khaled (Jun 03)
- Re: pcap_loop Guy Harris (Jun 03)
- Re: pcap_loop khaled (Jun 03)
- Re: pcap_loop Eloy Paris (Jun 03)
- Re: pcap_loop Michael Krüger (Jun 03)