Date: Fri, 24 Jan 2003 08:20:49 +0000 From: "soheil soheil" <soheil_hh@hotmail.com> To: freebsd-net@freebsd.org Subject: The socket sendto INVALID ARGUMENT ERROR returned Message-ID: <F1174y3Y9MErThctRDi0001213f@hotmail.com>
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Dear all
I wrote a code to send a tcp packet on a raw socket,
but the sendto function return some errors on argument
what can make this error occur ???
thanx
the code :
char datagram[4096];
.....
socket(s, SOCK_RAW, IPPROTO_TCP);
.....//filling the tcp/ip header
int one = 1;
const int *val = &one;
if (setsockopt(s, IPPROTO_IP, IP_HDRINCL, val, sizeof(one)) < 0)
printf("Warning: Cannot set HDRINCL!\n");
if(sendto(s,datagram, sizeof(struct tcphdr), 0,(struct sockaddr *)&sin,
sizeof(sin)) < 0)
perror("error on send");
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