11-12-2002
Big and Little Endian
We are developing an application using TLI for network communication.The Server Code is developed in Sun and client in SCO unix. When we route data from Client to Server we encrypt the data using DES algotithm utility.The problem we are facing that Sun uses Big Endian methodology to store data in memory while SCO uses Little Endian and so does Windows NT. Cause of this,the data received from the Client generates garbage when decrypted in the Server in Sun using DES algorithm.I would like to receive answers for two questions.
1)By using TLI for communications does it anyway hamper data in network communications with respect to Operating System using Big Endian when data is transfered from an Operating System which uses Little Endian and vice versa.How do we overcome this.
2)What type of algorithm should be followed such that we can be independent of Client/Sever been developed on any flavour of Unix OS overriding the Big/Little Endian methodology for data representation.
Any help is always welcome.
8 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi all
I know AIX is big-endian machine.But does it read bytes in normal way from LSB.
Does it happen in some machine that at multi-byte integer level it is Little-endian and while reading a single byte it is Big-Endian.
This is urgent
Thanks in advance. (3 Replies)
Discussion started by: Shobhit
3 Replies
2. UNIX for Dummies Questions & Answers
1 . Thanks everyone who read the post first.
2 . I have a log file which size is 143M , I can not use vi open it .I can not use xedit open it too.
How to view it ?
If I want to view 200-300 ,how can I implement it
3 . Thanks (3 Replies)
Discussion started by: chenhao_no1
3 Replies
3. UNIX for Advanced & Expert Users
Hi everybody,
I met this week a problem.
For now, we used TRU64 system based on alpha. Now, we're installing UP-UX systems (on Itanium). And we have problem with our files. Indeed, we use file with COMP-3, COMP-5 data. These files are used on both platforms. (we use also TXT files which... (1 Reply)
Discussion started by: bigmike59270
1 Replies
4. UNIX for Dummies Questions & Answers
Dear Friends,
I have one question in my mind. That question is
"how to detect whether the system is little endiean or big endian"
Processing the bit position is the difference between this endians.
But I could not understand how to find the pariticular sytem works... (3 Replies)
Discussion started by: Nirmal Babu
3 Replies
5. UNIX and Linux Applications
Hi,
We are trying to migrate an oracle database from Sun Solaris (SunOS 5.9 Generic_118558-28 sun4u sparc SUNW,Ultra-60) to Linux 2.6.18-53.1.19.el5 #1 SMP Tue Apr 22 03:01:10 EDT 2008 x86_64 x86_64 x86_64 GNU/Linux which is basically a Big Endian to Little Endian conversion.
We shutdown... (3 Replies)
Discussion started by: luft
3 Replies
6. Solaris
hi folks, in the sparc v9 manul , it says it is possible to access the memory data in little-endian mode, but there is only privilaged instruction that could set the PSTATE ( the cle bit ) regist. if I'm in the user mode , is it possible for me to access the data in little-endian mode? (10 Replies)
Discussion started by: zerocool_08
10 Replies
7. UNIX for Dummies Questions & Answers
I have a 5000 line config.log file with several "maybe" errors. Any reccomendations on finding solvable problems? (2 Replies)
Discussion started by: NeedLotsofHelp
2 Replies
8. UNIX and Linux Applications
Hi
Endian firewall free version if we do compare pfsense
For a LAN network with active user 1000
Which do you recommend
Share (0 Replies)
Discussion started by: mnnn
0 Replies
LEARN ABOUT DEBIAN
net::smtp::server::relay
Server::Relay(3pm) User Contributed Perl Documentation Server::Relay(3pm)
NAME
Net::SMTP::Server::Relay - A simple relay module for Net::SMTP::Server.
SYNOPSIS
use Carp;
use Net::SMTP::Server;
use Net::SMTP::Server::Client;
use Net::SMTP::Server::Relay;
$server = new Net::SMTP::Server('localhost', 25) ||
croak("Unable to handle client connection: $!
");
while($conn = $server->accept()) {
# We can perform all sorts of checks here for spammers, ACLs,
# and other useful stuff to check on a connection.
# Handle the client's connection and spawn off a new parser.
# This can/should be a fork() or a new thread,
# but for simplicity...
my $client = new Net::SMTP::Server::Client($conn) ||
croak("Unable to handle client connection: $!
");
# Process the client. This command will block until
# the connecting client completes the SMTP transaction.
$client->process || next;
# In this simple server, we're just relaying everything
# to a server. If a real server were implemented, you
# could save email to a file, or perform various other
# actions on it here.
my $relay = new Net::SMTP::Server::Relay($client->{FROM},
$client->{TO},
$client->{MSG});
}
DESCRIPTION
The Net::SMTP::Server::Relay module implements simple SMTP relaying for use with the Net::SMTP::Server module. All this module does is to
take a given message and iterate through the list of recipients, doing DNS lookups for the associated MX record and delivering the
messages. This module makes extensive use of the plethora of other modules already implemented for Perl (specifically the DNS and
Net::SMTP modules in this case), and should give but a glimpse of the potential for extending the Net::SMTP::Server's functionality to
provide a full-featured SMTP server, native to Perl.
The above example illustrates the use of the Net::SMTP::Server::Relay modules -- you simply have to instantiate the module, passing along
the sender, recipients, and message. More formally:
$relay = new Net::SMTP::Server::Relay($from, @to, $msg);
Where $from is the sender, @to is an array containing the list of recipients, and $msg is the message to relay.
AUTHOR AND COPYRIGHT Net::SMTP::Server / SMTP::Server is Copyright(C) 1999, MacGyver (aka Habeeb J. Dihu) <macgyver@tos.net>. ALL RIGHTS
RESERVED.
You may distribute this package under the terms of either the GNU General Public License or the Artistic License, as specified in the Perl
README file.
SEE ALSO
Net::SMTP::Server::Server, Net::SMTP::Server::Client
perl v5.10.1 1999-12-28 Server::Relay(3pm)