Sponsored Content
Full Discussion: Basic question about sockets
Special Forums IP Networking Basic question about sockets Post 302736737 by mzimmers on Tuesday 27th of November 2012 11:35:19 PM
Old 11-28-2012
Basic question about sockets

Hi -

I've written an app that, among other things, accepts a telnet connection (made via the "telnet" command from a terminal) and converses with it. I'd like to make this work so that only one client at a time can connect. Currently, when a second user tries to connect, the incoming messages get mixed up and lots of unpredictable results ensue.

Can someone point me in the right direction on how to lock out any subsequent connection attempts when someone already has a connection?

Thanks.

Oh, this is running SMX, not UNIX, but it has a very UNIX-like socket programming interface.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

basic question

I have some basic doubts. Can someone clarify in this forum? 1)if then eval ' tset -s -Q -m ':?hp' ' else eval ' tset -s -Q ' what does it exactly mean in .profile? 2) what are 'nobody' and 'noaccess' usernames in /etc/passwd file. ... (3 Replies)
Discussion started by: asutoshch
3 Replies

2. UNIX for Dummies Questions & Answers

basic question

hey...when i type who...what does "pts" field mean??? eg pts 0 etc (1 Reply)
Discussion started by: urwannabefriend
1 Replies

3. Programming

sockets question

I'm new to sockets programming and I have a few questions: Is the a maximum limit that you can use for the send and receive buffers via a call to setsockopt()? Does it differ on different OSs? If it does, how do I find out the max limit? What is the advantage to setting the buffers to be... (1 Reply)
Discussion started by: jalburger
1 Replies

4. Programming

sockets question again

I apologize if this seems like a repeat post, but I never got a clear answer (this isn't a criticism, it's possible I'm not being clear enough)....I'm attempting to enlarge the socket buffers for a udg socket, but it seems that no matter how large I attempt to set the buffer with setsockopt( ) ... (3 Replies)
Discussion started by: jalburger
3 Replies

5. UNIX for Dummies Questions & Answers

Very Basic Question

How to know if my AIX 5.2 is running at 64bits? THANKS (5 Replies)
Discussion started by: GermanSkull
5 Replies

6. UNIX for Dummies Questions & Answers

Really basic question....

Hello all. Let me start off by saying I know a little more then it seems by me asking this question... here goes I have an old 486 box and I want to start messing around with unix. I've been taking classes for 3 or 4 years in c programming in unix, so I am used to the commands and such, but I... (1 Reply)
Discussion started by: robherms
1 Replies

7. HP-UX

Basic OS question

Could someone tell me the command to find out the OS version which will give 12 character not the 9 characters(which is usually machine id). uname -i gives machine id and uname -a is more comprehensive way to look. Thanks! (4 Replies)
Discussion started by: catwomen
4 Replies

8. Shell Programming and Scripting

basic question

hi, I have a basic question,, i am in a directory called /intas/OCU_3.9.1/sbin ocuut1@france>mv itsa_tcs itsa_tcs_old mv: itsa_tcs_old: rename: Permission denied i am logging as the owner of the file. when i am doing this i am getting the above error of permission denied. I know... (3 Replies)
Discussion started by: namishtiwari
3 Replies

9. Shell Programming and Scripting

basic nc question

i'm doing this in one terminal: nc -lu 7402 and it appears to start listening properly, then in another i do this: echo "hello" | nc -u localhost 7402 and nothing happens on the listening terminal - what am i doing wrong? thanks. (7 Replies)
Discussion started by: peterworth
7 Replies

10. Programming

Sockets select() question

Hello everyone. I have a question regarding select() function. Imagine i had passed a fd_set* as the readfds parameter. Can i add some fd to the fd_set, using FD_SET, while the thread is blocked in the select call(obviously from another thread), and will that select call monitor those fd, even if... (2 Replies)
Discussion started by: adadon
2 Replies
dbus-cleanup-sockets(1) 				      General Commands Manual					   dbus-cleanup-sockets(1)

NAME
dbus-cleanup-sockets - clean up leftover sockets in a directory SYNOPSIS
dbus-cleanup-sockets [DIRECTORY] DESCRIPTION
The dbus-cleanup-sockets command cleans up unused D-Bus connection sockets. See http://www.freedesktop.org/software/dbus/ for more informa- tion about the big picture. If given no arguments, dbus-cleanup-sockets cleans up sockets in the standard default socket directory for the per-user-login-session mes- sage bus; this is usually /tmp. Optionally, you can pass a different directory on the command line. On Linux, this program is essentially useless, because D-Bus defaults to using "abstract sockets" that exist only in memory and don't have a corresponding file in /tmp. On most other flavors of UNIX, it's possible for the socket files to leak when programs using D-Bus exit abnormally or without closing their D-Bus connections. Thus, it might be interesting to run dbus-cleanup-sockets in a cron job to mop up any leaked sockets. Or you can just ignore the leaked sockets, they aren't really hurting anything, other than cluttering the output of "ls /tmp" AUTHOR
dbus-cleanup-sockets was adapted by Havoc Pennington from linc-cleanup-sockets written by Michael Meeks. BUGS
Please send bug reports to the D-Bus mailing list or bug tracker, see http://www.freedesktop.org/software/dbus/ dbus-cleanup-sockets(1)
All times are GMT -4. The time now is 01:52 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy