Programming :: General Implementation SIP Client Software Using C' Language?
Sep 15, 2010
I am new to this forum and to Networking as well. I have chosen to implement:
1) SIP Client using C' language
2) Platform: Windows
3)Its going to be on command line
my problem is that I need some reference like books, material or website where I can learn how to write the code from scratch or port the code according to my requirements. My implementation should serve the purpose like two SIP clients should communicate with each other for exchange of Audio data.
View 4 Replies
ADVERTISEMENT
Dec 7, 2010
I'm looking for linear hashing implementation in C language. PS: I have to implement this on Ubuntu 10.04 Linux on 64 bit machine.
View 2 Replies
View Related
May 6, 2011
I need to build an https client in 'C' language on linux platfrom and my app is a multithreaded one...in each thread it need to send a seperate https request to the same server..and receive response.... I used openssl library for this, i am able to send request to server. but when i am trying to read the socket (using SSL_Read) it's closing connection(returning 0 with error code 29).
View 3 Replies
View Related
Mar 17, 2010
My problem is to get postfix working with a smarthost, to send mails from home with dynamic IP, and which needs authentication. I did exactly the same with Slackware 12.2 (postfix 2.6.2) and it worked. Now I tried to do with 2.6.2 (actual running version is 2.7.0 with the same problem) on Slackware 13 64bit. Following error message occurs around every minute in the maillog:
[code]...
View 2 Replies
View Related
Aug 2, 2010
Can I know the implemention of RSA(Encryption and decryption) algorithm in C / C++.
View 1 Replies
View Related
Apr 27, 2011
I have a copy of the MD5 algorithm and I'm taking a look at the source. It's pretty interesting but there are a few things that I'm curious about and I was wondering if anyone a bit more intuitive than I could help me out.The function declarations in the MD5 files are a bit unfamiliar to me. There is a macro used called PROTO_LIST, which I'm still not sure as to what this thing is doing exactly, but it's littered everywhere throughout the source.The signature here isn't too unfamiliar to me with the exception of the position of the PROTO_LIST macro. So here is a function with an unnamed argument of type MD5_CTX*.To me, this resembles an initializer list found in C++ with constructors but I certainly don't think that is the case here. So my questions about this are (1) how is this legal code in C and (2) what functionality has the PROTO_LIST macro provided for the function?
View 3 Replies
View Related
Apr 6, 2011
I've implemented a program URL... which reads digital IF data from a radio receiver through a named pipe, measures power levels, and sends the result to stdout. The program is interactive; there is a thread that reads from stdin to watch for commands, a thread that constantly either reads data from the named pipe or throws data away, and an array of processing threads. The program uses GTK+extra to plot the signals. The IF data stream bandwidth exists at the limits of today's technology (is very very fast).
Problem Statement:The program works fine with a few bugs. I've learned since I've made it that using global state variables to coordinate threads isn't a good way of doing it. I also only had knowledge of mutexes and polled the state variable instead of using other methods.My reimplementation will use the following:
- One "Stdin Command Monitoring" thread
- One "Get data from named pipe" thread
- One post-processor thread
- N Processing threads
All threads are alive during the life of main()There are N buffers. Data will come in from the named pipe, and the "Get data" thread will write the data to an "available" buffer. When the buffer is full it will be marked as "full". There will be N processing threads, one for each buffer. When a processing threads' buffer is full, it will process the buffer and save the result to a final buffer. At the end of a number of averages, the post-processor thread will perform a final process on the final buffer and send the results to stdout.
View 2 Replies
View Related
Feb 3, 2010
From this thread I've decided to try add a feature of removing local port forwardings in ssh.Here are some very ugly and not-yet working hacks what I made so far:
* Patch for channels.c
* Patch for channels.h
* Patch for clientloop.c
I was clearly expecting this to work without any troubles-everything seem to be logically correct, but I made a programming mistake somewhere: don't know where, maybe you will point me to this?Many sites say there is a WAY AROUND with -D param(starting socks proxy as a tunnel-generator), added since 5.2, but I don't need that way around. I need a way through. I use exact ports for exact services and if I want to change it runtime I'd like to have ability to do so.If you have other ideas or points instead of coding this, please share them here & here(original question).
View 2 Replies
View Related
Apr 14, 2010
i recently got a french msi wind U100x running on linux suse enterprise 10 sp1. (i am french and wanted a light netbook with french keyboard)i am totally new to linux and i believe that msi wind is not helping.because i am more used to english for settings, i set the main language to english, but it seems that it automatically reconfigures my keyboard mapping to english as well, so that azerty becomes qwerty.i reset it back to french, so now my keyboard is french, but so is the system.is there a way to differentiate keyboard from main user setting language?
View 3 Replies
View Related
Feb 5, 2011
not able to solve an error when i try to do a wireless scenario in ns2.
num_nodes is set 3
warning: Please use -channel as shown in tcl/ex/wireless-mitf.tcl
INITIALIZE THE LIST xListHead
View 2 Replies
View Related
Oct 20, 2010
I am trying to understand the implementation of iptables and netfilters. Any good links or docs.
View 1 Replies
View Related
Mar 7, 2010
Groovy is an object-oriented programming language for the Java platform. I do not have experience in Java, only perl and shell scripts. Recently I have been asked to maintain a software written in groovy (also to make enhancements). So can I learn groovy without knowing java language. or isit I have to learn java before venturing into groovy.
View 1 Replies
View Related
Feb 25, 2010
I need to optimize the implementation of DSR algo using NS-2. Now i need to identify the first of all "the parameters which i can change and which are effective in optimization point of view." I want to get into the c++ code as well as header files which are used to implement DSR algo.
View 4 Replies
View Related
Aug 11, 2011
I am trying to find a leach protocol implementation for ns2.34 but all links available are dealing with ns2.27 Are the instructions valid for ns2.34?
View 4 Replies
View Related
Dec 19, 2008
I am unable to find a description of alsa's programing language, this sort of stuff:
[Code]...
I need to know what, for example, 'ttable' means and what is its syntax. This seems to be a state secret.
View 2 Replies
View Related
Mar 27, 2010
I wonder why arrays in the C programming language are pointers to the first element of the array, not the first element of the array itself?
View 14 Replies
View Related
Mar 9, 2011
I am writing a TCP server in C, and the server listens to incoming client connections and accepts them. It then creates a thread to handle the client. The clients are expected to only receive data from my server and not send any data. So if I use a select() call with a recv(), I believe that the recv() will just block forever since there will not be any data coming from the client. If I use a non-blocking recv(), then this will just return a 0 which tells me nothing because the client is not expected to send any data. I am not sure if I have misunderstood some socket concepts, but I need a solution to detect when the client has disconnected so that I can close the socket and stop sending data to the client. As I understand it, simple ACKs etc are not captured by the recv(), and only data sent by the client will cause recv() to return a non-zero value, so I am not sure how to know when the client has disconnected.
View 7 Replies
View Related
Mar 19, 2010
Subject of my school work:"Web interface for managing firewall and band on the access server (Linux)"I have a big problem because I do not know how to safely implement the change in the system and show the logs on the Web page.Unfortunately, the number of solutions for today is enormous and it is increasingly difficult to me to decide on the right.They are:
1. Launching a web server with root privileges (the default mode of miniserv'a Webmin)
2. CGI scripts on apache SUID (mode webmin on "foreign" server)
3. suPHP or suexec
4. Cron implements changes to the root
5. Daemon in C "periodically" implement changes in the configuration files created by PHP
6. Daemon in C to implement the changes requested in the configuration files created by PHP
7.Use SSH in PHP and after logging into the root of execution of commands in the configuration files created by PHP (the root password in the DB)
8.Use SSH in PHP and after logging into the root of execution of commands in the configuration files created by PHP (the root password, enter manually)
9. Like the above so that the use of sudo and user rights only to the necessary shell commands
10. Add the user apache in the /etc/sudoers can perform all the necessary applications shell commands
11. Seize the opportunity to command: shell_exec ( `sudo php-f / home /example/script.php`), and /etc/sudoers
View 1 Replies
View Related
Mar 13, 2009
Is there any framework available for network programming in c language just like POCO in c++.
View 1 Replies
View Related
Aug 1, 2011
My network diagram is internet<---->dansguardian proxy(centos5)<--->my network i have blocked facebook for my network but now i want to give only 2 ips to get its access & i do not want to enter these ip in exceptioniplist as if i doo so then they will be able to access all the sites that i have blocked. and if i am giving this entry [URL] in bannedsite list it is also not working.....
View 1 Replies
View Related
May 28, 2010
tell me some sites for learning programing language Because i feel confusing for learning C programing language now I got so many questions by my studing and i want to solve them by myself too.
View 14 Replies
View Related
Jul 1, 2010
I am new in client server programming and i have written code for single server to single client communicating one port(3490). but i have no idea how my single server will be communicate with different client on different port.how this will be happen ?
Any idea to understand the logic or send any good link or any piece of code in c , i searched on net but all help was mostly for java progamming.
View 1 Replies
View Related
Jun 30, 2010
My name is Simon and I have recently moved Ubuntu 10.04 from Windows XP. I am a programmer with a few years under my belt using a range of languages but primarily Microsoft Visual Foxpro. This program was very useful as it allowed me to access tables stored on my system and create programs to manipulate data in a wide variety of ways. Programs could be hobbled together, refined then placed in a menu system.I have been looking at a range of packages to use that would (a) allow me the same interactive experience, (b) allow me access to xbase tables (especially as most of the packages and business clients I have use this format), and can be used to create a GUI program. Ideally the package could create programs that can run relatively easily on Linux and Windows. Why, you might ask? Well unfortunately I have not been able to ditch foxpro, it is kind of unique in its abilities. Consequently I am using XP in VirtualBox to do some of my analysis and report production. I also still run Windows on my slate computer, which is used in the field to collect data.I have investigated Python/Jython, Java, Bash, and a number of others (e.g things that interact with PostSQL, MySQL, etc) but happily admit that I am overwhelmed with alternatives. That said, none quite match my relatively simple requirements stated above. The biggest problem is the lack of interactive data manipulation -- e.g. type an SQL statement and have the result appear immediately, that sort of stuff.
I need a language with strong data access, manipulation and reporting capabilities. I have sizable tables/databases containing millions of records and at present most queries take only a seconds using Visual Foxpro. Most of my investigations push me to the MySQL and similar data repositories, but all have their own format. Essentially I need to import all my data into their system before a language can access the data (note that there are copyright issues preventing this in some situations) - aren't there any programs that can access dbase or foxpro tables directly?The programming language also needs to be relatively mature. I don't want to spend all my time defining window sizes and button locations. Editors/Wizards that help design a GUI interface is preferable. It is imperative the language also has strong string, number, array and table access capabilities. Code should also be intuitive and easy to read. A lot of the languages I have reviewed are not intuitive. To me, functions in the format substr(string, start, lengthsegment) is logical and easy to follow. Things like Str = ${str//search/replace/} are not.
I suppose while I am listing preferences, an interpreter like eclipse would be desirable to help maintain code and format it as you go. Some sort of intelligent feedback as you construct a code snippet showing you what alternatives are available would also be valuable.At present I am leaning towards Python with Eclipse as the program manager, but as stated this setup does not really provide an interactive experience and does not appear to naturally interact with dbase. It appears this option would require considerable setup to get working.Java + Eclipse has been suggested before, especially as it takes away the need to worry about operating systems, but most of the packages I have used based on this language are restricted by library development by Sun Microsystems. The file chooser is a classic example - a known bug has been registered for this library for 5+ years and the problem has not been fixed.
View 9 Replies
View Related
Jan 21, 2011
I am looking for a specific forum for the R programming language.
Some thing like the LQ is for linux, that will be nice.
Or something like the cplusplus is for c/c++.
View 2 Replies
View Related
Jul 23, 2009
I want to know which is the best scripting language right now and what you guys think its going to be the best or most used in the future, that is, in about 5-10 years. Take into account system administration and applications. This are the languages i had in mind, add more if you think other scripting languages are better or worth considering.
View 14 Replies
View Related
Jun 6, 2010
I use Eclipse 3.5 from Ubuntu 9.10 repository.Please, how to use Eclipse to programming with C++ language?
View 5 Replies
View Related
Mar 14, 2011
How to install IO in 64-bit Ubuntu MM? There doesn't seem to be a package for it in the repos and it doesn't like compiling on a 64-bit system. I have used various internet tutorials but most don't work on AMD64.
View 2 Replies
View Related
Apr 7, 2011
How to create a database using c language it includes structures, pointers, arrays and switch..
View 4 Replies
View Related
Aug 1, 2010
In the code segment below is a for loop I am having some considerable difficulty with. It just keeps iterating endlessly and totally ignores the 70 times limit specified. I can't ever remember having this problem before and am absolutely Clueless.
Code:
for ( x = 0; x < 70; x++ )
{
fputs ("CSN00", target);
fprintf (target, "%d", userid);
[Code].....
View 14 Replies
View Related
Jul 28, 2009
We have to (re)write a bunch of scripts to download files from remote ftp servers, where we won't know the names beforehand; move the files to an archive folder on the FTP server; copy the files to the correct servers on our LAN; and log the file information in Oracle.Our current scripts are for a windows product called ScriptFTP that provides a nice little language. It does everything except the logging, but we're wanting to get rid of Windows.
I have recently been given the job of maintaining the code, and I'm looking for a good language for simple, robust ftp scripts that will work on Linux. We have some customers with remarkably unreliable FTP servers. If necessary, I can write another program to handle the logging to Oracle. I'm usually a C++ developer, so a similar syntax is a bonus. I also want to be able to hand this over to an entry-level programmer later.
So far, I'm intrigued by PHP, but I've hardly had a chance to look at it for any scripting. I like the idea of being able to loop through the files individually and even be able to skip over anything that looks like it's currently being written (either based on the file name or date/time). I've thought about writing something in C++ that would take a simple config file instead of a full blown script. However, I don't want the maintenance, unless someone writes a quality FTP library that is inexpensive (hopefully free) for commercial use.
View 10 Replies
View Related
