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Special Forums IP Networking Link two sockets to eachother Post 302254131 by Eckhardt on Monday 3rd of November 2008 05:52:27 PM
Old 11-03-2008
Question Link two sockets to eachother

Hi, I'm programming a system in C++ which will send messages from a server to an ip-camera (both are connected to the system). What it does now is take the message from the server-socket and puts it in the camera-socket.

The thing is, after that the camera is going to send a video stream which needs to go to the server. Unlike the server-messages, this is a continuous stream, so I can't really take messages out of the camera-socket and put them in the server-socket. What I would really want is to "connect" the camera-socket to the server-socket so that what 'comes out of the camera-socket' goes directly in the server-socket. Is there a nice way to do this? If not, does anyone have an idea how I could handle this?

I'm using TCP sockets and everything is HTTP based btw.

Thanks alot for any help!
 

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SS(8)							      System Manager's Manual							     SS(8)

NAME
ss - another utility to investigate sockets SYNOPSIS
ss [options] [ FILTER ] DESCRIPTION
ss is used to dump socket statistics. It allows showing information similar to netstat. It can display more TCP and state informations than other tools. OPTIONS
When no option is used ss displays a list of open non-listening TCP sockets that have established connection. -h, --help Show summary of options. -V, --version Output version information. -n, --numeric Do not try to resolve service names. -r, --resolve Try to resolve numeric address/ports. -a, --all Display both listening and non-listening (for TCP this means established connections) sockets. -l, --listening Display only listening sockets (these are omitted by default). -o, --options Show timer information. -e, --extended Show detailed socket information -m, --memory Show socket memory usage. -p, --processes Show process using socket. -i, --info Show internal TCP information. -s, --summary Print summary statistics. This option does not parse socket lists obtaining summary from various sources. It is useful when amount of sockets is so huge that parsing /proc/net/tcp is painful. -b, --bpf Show socket BPF filters (only administrators are allowed to get these information). -4, --ipv4 Display only IP version 4 sockets (alias for -f inet). -6, --ipv6 Display only IP version 6 sockets (alias for -f inet6). -0, --packet Display PACKET sockets (alias for -f link). -t, --tcp Display TCP sockets. -u, --udp Display UDP sockets. -d, --dccp Display DCCP sockets. -w, --raw Display RAW sockets. -x, --unix Display Unix domain sockets (alias for -f unix). -f FAMILY, --family=FAMILY Display sockets of type FAMILY. Currently the following families are supported: unix, inet, inet6, link, netlink. -A QUERY, --query=QUERY, --socket=QUERY List of socket tables to dump, separated by commas. The following identifiers are understood: all, inet, tcp, udp, raw, unix, packet, netlink, unix_dgram, unix_stream, packet_raw, packet_dgram. -D FILE, --diag=FILE Do not display anything, just dump raw information about TCP sockets to FILE after applying filters. If FILE is - stdout is used. -F FILE, --filter=FILE Read filter information from FILE. Each line of FILE is interpreted like single command line option. If FILE is - stdin is used. FILTER := [ state TCP-STATE ] [ EXPRESSION ] Please take a look at the official documentation (Debian package iproute-doc) for details regarding filters. USAGE EXAMPLES
ss -t -a Display all TCP sockets. ss -u -a Display all UDP sockets. ss -o state established '( dport = :ssh or sport = :ssh )' Display all established ssh connections. ss -x src /tmp/.X11-unix/* Find all local processes connected to X server. ss -o state fin-wait-1 '( sport = :http or sport = :https )' dst 193.233.7/24 List all the tcp sockets in state FIN-WAIT-1 for our apache to network 193.233.7/24 and look at their timers. SEE ALSO
ip(8), /usr/share/doc/iproute-doc-3.10.0/ss.ps (package iproute-doc) AUTHOR
ss was written by Alexey Kuznetosv, <kuznet@ms2.inr.ac.ru>. This manual page was written by Michael Prokop <mika@grml.org> for the Debian project (but may be used by others). SS(8)
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