05-09-2002
8 More Discussions You Might Find Interesting
1. Programming
Hi there, a newbie as far as compiling c.
I have a problem, I've ported a fairly simple perl socket program over to c.
I compiled it as follows
cc simplesocket.c -lsocket -lnsl
compiles great, no errors.
When I launch it from the command line, it works great!!!!
However, if I... (5 Replies)
Discussion started by: googling2000
5 Replies
2. UNIX for Advanced & Expert Users
Hi,
I was porting ipv4 application to ipv6; i was done with TCP transports. Now i am facing problem with SCTp transport at runtime.
To test SCTP transport I am using following server and client socket programs. Server program runs fine, but client program fails giving Invalid Arguments for... (0 Replies)
Discussion started by: chandrutiptur
0 Replies
3. Programming
Hi all,
On the server side, one socket is used for listening, the others are used for communicating with the client.
My question is: if i want to set option for socket, which socket should be set on?
If either can be set, what's the different?
Again, what's the different if set option... (1 Reply)
Discussion started by: blademan100
1 Replies
4. Programming
Why does this socket function only read the first 1440 chars of the stream. Why not the whole stream ? I checked it with gdm and valgrind and everything seems correct...
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>
#include... (3 Replies)
Discussion started by: cyler
3 Replies
5. Programming
Dear Experts,
i am compiling my code in suse 4.1 which is compiling fine,
but at runtime it is showing me for socket programming error no 88
as i searched in errno.h it is telling me socket operation on non socket,
what is the meaning of this , how to deal with this error , please... (1 Reply)
Discussion started by: vin_pll
1 Replies
6. Solaris
Hi everyone,
Question for gurus:
Is there a way for us to determine the options used by a socket?
I basically want to know if SO_KEEPALIVE is enabled on a socket to know if the tcp_keepalive_abort_interval parameter will be used by that connection.
Was I clear enough? :confused:
... (0 Replies)
Discussion started by: plmachiavel
0 Replies
7. IP Networking
I need clarification on whether it is okay to set socket options on a listening socket
simultaneously when it is being used in an accept() call?
Following is the scenario:-
-- Task 1 - is executing in a loop - polling a listen socket, lets call it 'fd', (whose file descriptor is global)... (2 Replies)
Discussion started by: jake24
2 Replies
8. Ubuntu
Hello Everyone,
First of all, I highly appreciate all Linux forum members and whole Linux community. http://forums.linuxmint.com/images/smilies/icon_wink.gif. I wish you the best for all of you !
I will try to be short and concise: I am using Linux Mint 10 for 2 months on 2 ws, and all went... (3 Replies)
Discussion started by: cdt
3 Replies
IP(4P) IP(4P)
NAME
ip - Internet Protocol
SYNOPSIS
#include <sys/socket.h>
#include <netinet/in.h>
s = socket(AF_INET, SOCK_RAW, proto);
DESCRIPTION
IP is the transport layer protocol used by the Internet protocol family. Options may be set at the IP level when using higher-level proto-
cols that are based on IP (such as TCP and UDP). It may also be accessed through a "raw socket" when developing new protocols, or special
purpose applications.
A single generic option is supported at the IP level, IP_OPTIONS, that may be used to provide IP options to be transmitted in the IP header
of each outgoing packet. Options are set with setsockopt(2) and examined with getsockopt(2). The format of IP options to be sent is that
specified by the IP protocol specification, with one exception: the list of addresses for Source Route options must include the first-hop
gateway at the beginning of the list of gateways. The first-hop gateway address will be extracted from the option list and the size
adjusted accordingly before use. IP options may be used with any socket type in the Internet family.
Raw IP sockets are connectionless, and are normally used with the sendto and recvfrom calls, though the connect(2) call may also be used to
fix the destination for future packets (in which case the read(2) or recv(2) and write(2) or send(2) system calls may be used).
If proto is 0, the default protocol IPPROTO_RAW is used for outgoing packets, and only incoming packets destined for that protocol are
received. If proto is non-zero, that protocol number will be used on outgoing packets and to filter incoming packets.
Outgoing packets automatically have an IP header prepended to them (based on the destination address and the protocol number the socket is
created with). Incoming packets are received with IP header and options intact.
DIAGNOSTICS
A socket operation may fail with one of the following errors returned:
[EISCONN] when trying to establish a connection on a socket which already has one, or when trying to send a datagram with the destina-
tion address specified and the socket is already connected;
[ENOTCONN] when trying to send a datagram, but no destination address is specified, and the socket hasn't been connected;
[ENOBUFS] when the system runs out of memory for an internal data structure;
[EADDRNOTAVAIL]
when an attempt is made to create a socket with a network address for which no network interface exists.
The following errors specific to IP may occur when setting or getting IP options:
[EINVAL] An unknown socket option name was given.
[EINVAL] The IP option field was improperly formed; an option field was shorter than the minimum value or longer than the option buf-
fer provided.
SEE ALSO
getsockopt(2), send(2), recv(2), intro(4N), icmp(4P), inet(4F)
4.2 Berkeley Distribution May 16, 1986 IP(4P)