I'm working on my homework to write a chatroom program. Different users can be on-line at the same and talk to each other.
I found that each time I invoked the accept function. A new socket was created. I don't how can I receive message from the client who is already on-line and send it to others.... (0 Replies)
I am going to purchase Unix Network Programming by Stevens. The only question I have is which edition to buy. The older (early 90's) edition, or the newer (late 90's) edition. I know conventional thinking would point to the latest ( and greatest?), but I wanted to get some feedback from the forum.... (3 Replies)
Good day everyone,
Please help if you are interested in.
I need to do a chat client-server program.
Does anyone know where I can get references or sample programs?
Thank you very much for your time
Eric (2 Replies)
I want to develop a hybrid IM application which will consist of a chat and an offline messaging (BBS) part.
Server must support
Multiple connection (concurrent)
Arguments should not be hard coded (code will be checked at different machines)
No input at the command line
Must run in the... (3 Replies)
Hi!
I am working on fedora..
trying to execute BSD4.4 client-server program which includes "unp.h" header file...
While executing make command, I got error like,
" expected " , " , " ; ",or ")" in connect_nonb file...ERROR 1 "
I tried to change mode of makefile but I can't get... (4 Replies)
I have written a client-server program which does some data from a file in server to the client. In this I don't want the client to wait indefinitely if server is not running. For this I am using SELECT system call, in this system call we can specify timings as an argument, which tells the client... (2 Replies)
Hi,
I have to start doing network programming in C/Unix but I have windows installed.
Could someone please guide me how to set up the environment best suited for the networking programming?
Regards
Vinayak (1 Reply)
I have started reading the book Unix Network Programming, Volume 1: The Sockets Networking API. I downloaded all the source code and the readme says I must make the files.
zuro@zuro:~/book/unpv12e$ cd lib
zuro@zuro:~/book/unpv12e/lib$ make
gcc -g -O2 -D_REENTRANT -Wall -c -o... (5 Replies)
I have started reading the book Unix Network Programming, Volume 1: The Sockets Networking API. I downloaded all the source code and performed all the steps present in README file.Now when i compile my first program it give the following error.
sainandan@nandan:~/unpv13e/intro$ ./daytimetcpcli... (1 Reply)
Discussion started by: bsainandan
1 Replies
LEARN ABOUT OSF1
spray
spray(8) System Manager's Manual spray(8)NAME
spray - Spray packets
SYNOPSIS
/usr/sbin/spray [-c count] [-d delay] [-l length] [-t nettype] host
OPTIONS
Specifies how many packets to send. The default value of count is the number of packets required to make the total stream size 100000
bytes. Specifies how many microseconds to pause between sending each packet. The default is 0. The length parameter is the numbers of
bytes in the Ethernet packet that holds the RPC call message. Since the data is encoded using XDR, and XDR only deals with 32 bit quanti-
ties, not all values of length are possible, and spray rounds up to the nearest possible value. When length is greater than 1514, then the
RPC call can no longer be encapsulated in one Ethernet packet, so the length field no longer has a simple correspondence to Ethernet packet
size. The default value of length is 86 bytes (the size of the RPC and UDP headers). Specify class of transports. Defaults to netpath.
See rpc(3) for a description of supported classes.
DESCRIPTION
The spray command uses RPC to send a one-way stream of packets to the specified host and reports how many were received, as well as the
transfer rate. The host argument can be either a name or an Internet address.
A remote host only responds if it is running the sprayd daemon, which is normally started up from inetd(8).
The spray command is not useful as a networking benchmark. The spray command can report a large number of packets dropped when the drops
were caused by spray sending packets faster than they can be buffered locally (before the packets get to the network medium).
SEE ALSO
Routines: rpc(3)spray(8)