Date: Thu, 6 Dec 2001 17:07:51 +0200 From: Giorgos Keramidas <charon@labs.gr> To: "Sergey V. Artjushkin" <skiv@caravan.ru> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: get client ip from accept(2) ? Message-ID: <20011206150750.GI13203@hades.hell.gr> In-Reply-To: <3C052091.70205@caravan.ru> References: <3C052091.70205@caravan.ru>
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On 2001-11-28 20:36:17, Sergey V. Artjushkin wrote:
> Hello
>
> Colleagues, I have some question about accept(2) functions.
> I have wrote the following programm:
>
> -------------------------------
> /* set up the listening tcp socket*/
> if ( (l_fd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
> { log_error("socket (tcp) error"); exit(0); }
> memset(&l_servaddr,0,sizeof(l_servaddr));
> l_servaddr.sin_family = AF_INET;
> l_servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
> l_servaddr.sin_port = htons(c_tcpport);
>
> if ( bind(l_fd,(struct sockaddr *) &l_servaddr, sizeof(l_servaddr)) < 0)
> { log_error ("bind TCP error"); exit(0); }
>
> if ( listen(l_fd, 32) < 0)
> { log_error("listen error"); exit(0); }
>
> if ( (l_connfd = accept(l_fd,(struct sockaddr *) l_cliaddr, &l_addrlen)) > < 0)
> { log_error("accept error"); exit(0); }
> ----------------------------------------
Unless I have missed something, in your program (this is far from a
complete source fragment, no types of variables are shown), you should
be able to use `l_cliaddr.sin_addr.s_addr' to get the IP address of the
client in network byte-order after your accept() call finishes.
-giorgos
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