Programming :: Create Commercial(closed Source) Softwares?
Mar 18, 2010
I'm asked to create a network tool in C and a GUI API in linux platform by my company. I'm aware of the GPL & GLPL licenses , but not clear whether I can create a proprietary commercial software with the tools & libraries available in Linux: My tool will be written in C and will be using the some network library functions in the Linux and some header files .(Their license is GPL) , also the GUI i'm planning to develop is using GTK and Glade / Anjuta, (GTK is based on GLPL license) , I will be using GCC compiler for C programs,
Please let me know whether it is possible to create a closed source-commercial software using the above tools/libraries, if not possible is there any workaround is there for creating commerical tools in linux Can I make some part of my code closed and some parts open? Also please let me know which is the best GUI building programming language/IDE that can be used with C programs in linux
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Oct 17, 2010
Does anyone knows good commercial or non-commercial antivirus software that runs on ubuntu 10.04 and that works with the samba v-scan module? I was thinking about Avast, but I'm not sure it works with samba v-scan. Also I'm not sure it is possible to install the avast server edition for linux on ubuntu 10.04.
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Dec 11, 2010
If i am installing softwares through rpm, i can later query to see which softwares are installed on my system (using rpm). But if i have installed any softwares from source (using tar, /.configure methodhow can i list those softwares to see which one are installed ?
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Jan 4, 2010
i am trying to generate a linux executable data (bin data) from my java source code.
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Nov 13, 2010
I would like to play .mp3 and .mpeg files with Red Hat Enterprise Linux 6 Client. Flash and Java must also be working. For Java, I have download the jre-6u22 and the jdk-6u22 and installed manually. How can I get automatically updates for them? For Flash, I have installed the i386 package and the .repo so the updates must working. So, I have
Code:
/etc/yum.repos.d/
adobe-linux-i386.repo
atrpms.repo
epel.repo
epel-testing.repo
mirrors-rpmforge
mirrors-rpmforge-extras
mirrors-rpmforge-testing
packagekit-media.repo
rpmforge.repo
rpmforge.repo.rpmnew
rpmforge-testing.repo.rpmsave
rpmfusion-free-updates.repo
rpmfusion-free-updates-testing.repo
rpmfusion-nonfree-updates.repo
rpmfusion-nonfree-updates-testing.repo
[URL] hasn't RHEL6 yet.
Enabled are only Adobe, RHEL Client v6 for 64-bit x86_64 and the RHEL 6Client - RPMforge -dag repositories. The others make problems with dependencys. RPM Fusion has no EL 6 repos, so I deactivate them. I have chosed to install the gstreamer plug-ins bad but haven't find them. Manually download from rpmfind or pbone results with wrong depencies...it's horrible.
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Oct 14, 2010
Installing the closed source java in Xubuntu 10.10.
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Oct 11, 2010
i need the closed source version of java plugin for ubuntu 10.10final for i can use pogo
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Jun 23, 2011
I am currently having an issue attempting to set up a dedicated server for source games (TF2, CS:S, L4D2). The required port (27015), along with most others, appears closed to the rest of the world and upon a port scan with DMZ hosting on (therefore no router interference between the internet and my computer) only a few ports are open (80, 139, 443, 445). My ISP does not block ports so therefore the only issue I can find is with my computer running Ubuntu 11.04. I have ensured that all traffic is allowed via iptables and I can't think of anything else that would have ports closed.
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Jun 28, 2011
Is there any open source virtual machine so i can study the source in order to create my own? i'm gonna write my own, so it doesNT matter if license does not allow further development of the code.
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Feb 17, 2011
I have found a weird behaviour on a linux application. A tty seems to get closed without calling close. The program is (very simplified) as follows:
Process 1:
configure_signals()
read_config_files()
create_threads()
wait(forever)
Thread 1:
fd=open(/dev/ttyXX)
usleep(a while)
config(fd)
I have spent quite a lot of time on this problem. It seems like the file is sometimes closed when reaching config(fd), but removing the usleep(a while) seems to remove the problem.
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Jul 27, 2010
Rather than get in hot (or even slightly-above-comfortable temperature) water for reviving a closed (ca. 2007) thread without moderator permission or acquaintance of the OP personally or by proxy, I'll post this alternate solution (approach?) along with one positive real-world example illustrating how mine is easier to write and is equally reliable, if not altogether better. The thread is here. Their solution:
Code:
if [ "$myfilesize" eq "0" ];then echo "$file: the file size is zero"; else echo "$file: the file size is NOT zero"; fi (and this hangs on the output of a stat -c %s command). "Hangs" is probably a most appropriate word. The two outputs, using two different stat options, the same file, and three marginally-different command-line syntaxes I just tried gave me these: First, using their approach, I got this:
Code:
tjsfa070929-094.jpg.error: the file size is NOT zero
Even though stat gave me this
Code:
>> stat -c %s $file
[Code]...
From where I sit, getting the file type string instead of an integer, which can be equally (if not often more) accurate, makes for an easier time of setting the conditional and, maybe only in terms of a few ticks, a faster script from start to finish. I think my method is better, and proven so to the limits of my knowledge and ability here in this OP.
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Aug 6, 2010
Reading some examples on net and copying some codes I was able to build a (frankstein) server that accept connection from one client and receive and send messages to it. The big problem that shows up is that I don't know when client disconnects from my server.
I've been looking for a solution, but no success. I'd read about SO_KEEPALIVE option (which could solve my problem), but I don't know how to use it (how to check the value of it).
I can't use ping because the server (machine) could be running, but not the client (software).
Anyone knows a good tutorial or how to (for beginners like me xD) of TcpIp sockets using c/c++ and how to detect when a client disconnect?
I don't know sockets very well.
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Sep 22, 2009
I am writing a program to read and write to devices over my serial port. My program will need to connect to up to four other machines at once. I can connect to machines successfully, it works well. However, after I connect and disconnect once, attempting to connect again will cause the FIRST serial connection will fail and all the ones after it will pass.
e.g.
Code:
fd[0]=connect("/dev/ttyS0");
fd[1]=connect("/dev/ttyS1");
fd[2]=connect("/dev/ttyS2");
fd[3]=connect("/dev/ttyS3");
code....
That works as long as it is executed only once in the program. The second time it is executed, fd[0] will die and fd[1-3] will work normally.I can't figure out why this happens, but I found a workaround by connecting to "/dev/null" before any real serial ports.What should I do?
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Mar 8, 2011
iam just trying to connect to server which accepts one client and server will read(blocking operation) infinitely, but After closing the client socket the server "read operation" is returning zero and "errno variable(in errno.h)" value is also zero. how can i detect whether a client socket is closed/active..?
client.c
Serv_Addr.sin_family = AF_INET;
Serv_Addr.sin_addr.s_addr = inet_addr("127.0.0.1");
Serv_Addr.sin_port = htons(26553);
if( 0 > connect (Serv_Fds,&Serv_Addr,sizeof(Serv_Addr)) )
{
perror("connect");
return 0;
[Code]....
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Sep 29, 2010
we have a multi threaded program on Linux where one thread is waiting on poll() system call with event set to POLLIN, & another thread has closed the same socket fd (which is passed to poll) , but the poll() did not return, is this the expected behavior? From man page of poll we found that the poll should return POLLNVAL if the socket fd is closed, is my understanding correct or is there any bug in the poll()?In Solaris we observed that the poll system call is returning with POLLNVAL if the socket is closed.
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May 30, 2011
I am working in Redhad linux, how to create Data source Name in Linux..
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Jun 7, 2011
Right now to install software from source I do a ./configure && make && make install which doesn't allow for easy uninstallation (some don't come with an 'uninstall' goal, and if they do you have to keep the source around). I'd like to learn how to create binary RPMs from source tar.gz files (one reason being that it makes for easier uninstallation). I tried the following but it complains with the following errors:
Code:
$ rpmbuild -ta mysource.tar.gz
error: Name field must be present in package: (main package)
error: Version field must be present in package: (main package)
error: Release field must be present in package: (main package)
error: Summary field must be present in package: (main package)
error: Group field must be present in package: (main package)
error: License field must be present in package: (main package)
Apparently that's what happens when there is no SPEC file in the tarball. But all the tars I've tried give this same error. Is there a simple way to create binary RPMs from source files - as an example, this source tar [URL].
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Jul 20, 2009
I am running openSUSE 11.1. I installed the Hypervisor and tools and booted into: 2.6.27.23-0.1-xen. I'm trying to install Ubuntu LTS 8.04.3 as a guest using the "Create a Virtual Machine" GUI/wizard. I specify "other" since no Debian-based distro is offered under "Type of Operating System". Under "Installation Source" for "Operating System Installation" I Add a Virtual Disk of "phy:/dev/sr0" using protocol "phy". It can obviously read the drive since it recognizes that it is 0.6 GB (the media contains a burned & bootable (from ISO) DVD - the files are extracted).
However, when I proceed I am thrown an Error:
"The installation source is unusable." with Details:
"0.6 GB CD-ROM or DVD (phy:/dev/sr0)"
Am I supposed to do something different?
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Feb 25, 2015
I have a project and would like to create a .deb package that brought on any computer with debian distribution installs it in your home user who is installing.I followed a guide and managed to create a deb package from my sources with FPM. But creates them with root permissions and tells me that I should create a script before installation to change the permissions.
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Feb 6, 2011
I know that Linux is open source but there must be ways of creating non-open source programs to be run on a Linux system? Does such a thing exist and/or have a name? Would any source code that has been compiled be unable to be read by anyone properly unless the soruce code was released?
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Aug 5, 2011
i just uppgraded to Centos 6. Linux 2.6.32-71.29.1.el6.i686 on i686. now im getting some troubble whit this file: wget [URL]... i create a downloads directory and download the source file and--
mkdir $HOME/downloads
cd $HOME/downloads
But when i try to build courier-authlib whit this comand: #sudo rpmbuild -ta courier-authlib-0.63.0.tar.bz2. I get this:
[code]...
what can be the reason?
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May 30, 2010
I am using liferay5.2 with tomcat 6. after installation of liferay5.2 i am unable to configure the datasource that points to the database mysql.without this liferay wont function. how to create a mail session in tomcat that points to the mail server. i am using fedora 6.
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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.
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Mar 23, 2011
How do I get Fedora 14 to read a commercial DVD?
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Jul 29, 2010
I am new to linux platform and my requirment is to write a makfile which can compile a tree for source file and create the output in separate directory .
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Jun 17, 2010
I want to take dvds that I have bought and put them on my droid phone. I have been using windows XP for this but my windows machine took a dive a few weeks ago and I am struggling getting it going and I am trying to make Linux work. On my dell laptop inspiron 6000 I am running Ubuntu 10.04 and I am loving it so far but I am jot able to get any of my commercial DVD to rip. I know that it has to do with the copyrights but is there a way for me to rip a DVD and then convert it. I have virtualbox on the system and I am not against using another OS. I have tried to install windows 98 and XP (2different disk) and I have not been able to get it. I have tried k9copy, acidrip, DVD::rip, kino and pitivi video editor and I have not been able to get any of them to work.
I have also tried several different DVDs. I am not an expert in any of these software's. I am even willing to by software if I have to. I have also tried to get my wintv pvr usb2 video capture device to work under Ubuntu but I am have tried several times over the past several years to get it work but the walkthrough I have been finding have not workedm. My system does not do what they say its supposed to or I don't understand the walkthroughs. I would be very happy if anyone could any of the above options working. I don't care which one. I would even consider paying some to log into my computer and get it setup if there is a person or company that does that with Ubuntu.
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Nov 12, 2010
is there commerical paid support for centos i know fedora is supported by redhat
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Nov 8, 2010
since I had to re-install Slackware 13.1 on my netbook and I have now build Clementine on it. I can hear webstreams on my main machine, also running Slackware 13.1 and Clementine 0.5.When I try to play a stream I get this error message in the console:Quote:Couldn't create gstreamer source element for <streamURL>
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Sep 13, 2010
I'm just looking for a good mpeg cutter for my Ubuntu laptop. I currently use video redo on my Windows PC but that is also my HTPC and is hooked up to the TV. I would prefer not to do it on the TV because of possible burn in issues and would love to be able to take the mpeg files recorded on the HTPC and cut them on the laptop but haven't found a really great application to do that.
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Dec 16, 2010
I am unable to play commercial DVDs on an Ubuntu laptop.I have a fairly new Lenovo 4151 laptop. It came with Windows 7 Premium but I have replaced that with Ubuntu 10.04 LTS Lucid. (Actually, a friend helped me do that.) I would like to play commercial DVD's on it.Movie Player says it need a plugin but is unable to find on on the web. "No packages with the requested plugins found." "The requested plugins are: DVD Source"
So I installed VLC Media Player and it won't play the DVD either. It presents me with a host of files, none of which it will play.I would like to stay with 10.04 if possible because I want to give this lap-top to my sister and I would like her to have an LTS distro, so she doesn't have to upgrade for a long time.My supposition is that I need to add a source for additional codecs and install them.I did search these forums (fora?) for codec, but didn't find anything appropriate. I'm not so familiar with this, so I may have missed something.
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