The server doesn't know how much data is being sent to it. Is the recv() call blocking or polling? If it's blocking, then you might be okay. If it's polling, you need to distinguish between "End of data" and "no more data YET".
Then there's
How does the received object (echoBuffer) know dataSize? Does the recv() call set that too? Or is it set to the maximum buffer size? In any case, it might be more (or less) than recvMsgSize, which would reflect the true number of bytes received.
Hello there chaps.
First of all, i'm no TCP/IP-wiz, so forgive me if this is a stupid question.
I've been messing around with filetransfer using sockets, and there is one thing that confuses me.
This is how it's set up:
A server app listens on a port for a client connection.
When it... (3 Replies)
If I do a netstat -a I can see all the sockets currently open, is there a way that I can tell which application is holding open these sockets ? (3 Replies)
I have what appears to be a unique socket problem, although admittedly my tcp/ip programming experience is relatively limited.
I have a AIX server process using TCP/IP berkely sockets, and a Windows (C#) process. The windows process takes input from a user and sends a message to the Unix... (1 Reply)
Hello
I try to send DHCP RENEW packets to the network and receive the responses. I broadcast the packet and I can see that it's successfully sent using Wireshark. But I have difficulties receiving the responses.I use packet sockets to catch the packets. I can see that there are responses to my... (0 Replies)
Hello,
I'm trying to write a small c application to test a tcp port. This works fine for the most part but the default timeout on the connect is very long. I have been reading many posts but and it looks like I need to set the socket to be non-blocking and poll for a result. I have been totally... (2 Replies)
Hello,
Our software is using a TCP socket (AF_INET, SOCK_STREAM) to communicate with an Ethernet device. When we send a message, the message object writes itself in full onto the socket's stream buffer before the software invokes send() from socket.h.
I'm still researching, but have 2... (1 Reply)
Hello all,
I have a requirement to read and write to a tcp socket from an HP-UX shell script. I see a /dev/tcp character device on my servers:
crw-rw-rw- 1 root root 72 0x00004f Mar 28 18:37 /dev/tcp
So I believe this is what I should use. The problem is that all the... (2 Replies)
I installed a fresh copy of Solaris 7 and present up my ip and domain for my web services but when I try to connect to it I get the following error;
TCPActiveOpen: connect failed tcp/192.168.1.148/7900: 146 (Connection refused).
the port is open in my router but I don't no were to add it in... (5 Replies)
I been looking for a good guide or some help on how to install and setup TCP-MUX protocol socket on my Solaris 7 servers.
Can anyone point me in right direction of help me ?
Thanks (5 Replies)
Hi
The clients connect to my server -using port 9130. But no client could connect to my server at this time. I've checked already and this is the result
netstat -Aan|grep -v 127.0.0.1|grep 9130|pg
f10006000abcb398 tcp4 10313 0 10.0.89.81.9130 10.158.70.24.1705 CLOSE_WAIT... (8 Replies)
Discussion started by: bobochacha29
8 Replies
LEARN ABOUT SUSE
tcp-env
tcp-env(1) General Commands Manual tcp-env(1)NAME
tcp-env - set up TCP-related environment variables
SYNOPSIS
tcp-env [ -rR ] [ -ttimeout ] program [ arg ... ]
DESCRIPTION
The input for tcp-env must be a TCP connection. tcp-env finds out information about that connection, puts the information into several
environment variables as described in tcp-environ(5), and runs program with the given arguments.
Usually tcp-env is run from inetd. It might instead be run from another server that already sets up the right environment variables; if
PROTO is set to TCP when tcp-env is invoked, tcp-env assumes that all the other variables are set up properly, and it does not check
whether the input is a TCP connection.
OPTIONS -r (Default.) Attempt to obtain TCPREMOTEINFO from the remote host.
-R Do not attempt to obtain TCPREMOTEINFO from the remote host.
-ttimeout
Give up on the TCPREMOTEINFO connection attempt after timeout seconds. Default: 30.
SEE ALSO tcp-environ(5), inetd(8)tcp-env(1)