Date: Mon, 8 Mar 1999 11:59:24 -0500 (EST) From: Alfred Perlstein <bright@cygnus.rush.net> To: CyberPsychotic <fygrave@tigerteam.net> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: SOCK_RAW on BSD Message-ID: <Pine.BSF.3.96.990308115737.1330F-100000@cygnus.rush.net> In-Reply-To: <Pine.GSO.4.05.9903081847190.9775-100000@kyrnet.kg>
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On Mon, 8 Mar 1999, CyberPsychotic wrote:
> Hello people,
> here I've been playing with RAW sockets on FreeBSD and got stumbled abit.
> Any ideas why code bellow does't seem to get anything passed by kernel.
> (I read manual pages and /sys/netinet/raw_ip.c but neither place mention any
> incompatibilies with other systems. This piece would work fine on Linux
> platforms).
If you are trying to capture packets you should look at 'bpf', if you
are trying to capture packets in a portable fashion, look at the library
'pcap'
-Alfred
man bpf
man pcap
>
>
> #include <stdio.h>
> #include <netdb.h>
> #include <sys/socket.h>
> #include <sys/types.h>
> #include <sys/socket.h>
> #include <netinet/in.h>
>
>
>
>
> void main(void) {
>
> char buf[10000];
> int s,rdln;
> s=socket(AF_INET, SOCK_RAW, IPPROTO_RAW);
> while(1)
> {
> rdln=read(s, buf, 9999);
> printf("got pack len: %i\n",rdln);
> }
> }
>
>
>
>
>
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