I develop an application with requires root privileges. I use Code:Blocks launched with sudo codeblocks command. The problem is that developing in root'ed Code::Blocks results in source files and CB configuration files being created with root owner. I thought I could use setuid on codeblocks executable but it is not allowed with GTK app...
We have a long standing bug in our production code. This is essentially a socket based daemon. It listens to a bunch of filedescriptors using select. Occasionally (once a day or so), select will return with EBADF. I have written code to search for the bad filedescriptor, that loops over each fd and calls select on it. These calls never...
I am using a new service to pull xml data from a server. The service provides two methods of logging in, one via a url query: http://<server>/login.asp?username=<User Name>&password=<Password> and the server returns a cookie valid for 7 days. This means instead of logging in for every query (and making my script less effici...
On some of our linux boxen compiling with gcc -std=c99 makes struct ip_mreq dissappear (included from netinet/in.h) Is there some other interface we are supposed to use ? ...
I tried to run a programme in background mode and foreground mode, while in background mode,it failed to run, but in foreground mode,it succeeded, so what's the difference between background and foreground mode that might cause this issue? ...
I am working on redhat 5.2 on a project which spans several disparate organizations. Each organization delivers libraries which have been compiled with various versions of g++. Currently, these versions include 4.1.1, 4.1.2 and 4.3.1. I am trying to link all the libraries together into an executable using 4.1.2. What, if any, problem...
I know this can be checked from /proc/PID directory, but don't know how to, can any one show me the way? ...
Need to search a directories with lots of sub-directories for a string inside files: I'm using: grep -c -r "string here" * How can I total count of finds? How can I output to file only those files with at least one instance? ...
especially the last two with '-' and '+' respectively, what does it mean on earth? [1] Done php start.php bots/admin32.bot.php [2] Done php start.php bots/admin36.bot.php [3] Done php start.php bots/admin10.bot.php [4] Done php start.php bots/admin11....
I've been writing a little program for fun that transfers files over TCP in C on Linux. The program reads a file from a socket and writes it to file (or vice versa). I originally used read/write and the program worked correctly, but then I learned about splice and wanted to give it a try. The code I wrote with splice works perfectly...
I have a database that encrypted with windows CAPICOM library with RC4. Following PHP script works fine on windows server. ... $oCapiCapi = new COM("CAPICOM.EncryptedData"); $oCapiCapi -> Algorithm = 1; $oCapiCapi -> Algorithm -> KeyLength = 3; $oCapiCapi -> SetSecret('OURveRYSecretKey'); ... $oCapiCapi -> Decrypt($orsd[1]); $...
I've just written a Makefile to build a shared library, similar to the following: libmystuff.so: CFLAGS+=-fPIC -shared libmystuff.so: libmystuff.o otherstuff.o $(CC) $(CFLAGS) -o $@ $^ I like to avoid doing explicit actions when this seems like a common operation, but it seems there's no implicit rule or other built-ins to standar...
I have a bunch of buffers (25 to 30 of them) in my application that are are fairly large (.5mb) and accessed simulataneousley. To make it even worse the data in them is generally only read once, and it is updated frequently (like 30 times per second). Sort of the perfect storm of non optimal cache use. Anyhow, it occurred to me that it ...
How can I randomize the lines in a file using a standard tools on Redhat Linux? I don't have the "shuf" command, so I am looking for something like a perl or awk one liner that accomplishes the same task. ...
I've been using (Ubuntu's) file-roller to compress a range of files, e.g. .gz, .zip, .rar, .tar.gz, etc. It's nice because it provides a simple, uniform interface to de-compressing files in particular folders. However, it's pretty slow, apparently because it pops open a GUI window to tell you its uncompressing the file. So I am wonderin...
What are the possible culprits for crashes during kernel init? I am running a kernel that has initramfs, the inittab is very basic rcS (as sysinit) and getty (respawn). While booting I don't get any error message, however the init gives me this message: S0 respawning too fast: disabled for 5 minutes, where S0 is actually the respawn::g...
What does the obj file ctr1.o does in gcc compilier ?Why does the linker link this obj file whenever an executable is generated? ...
Is the kernel stack for all process shared or there is a seperate kernel stack for each process? If it is seperate for each process where is this stack pointer stored? In task_struct ? ...
Is it possible to run a .net application on Linux environment? If yes then how? Will all the components of .net framework work properly on Linux ? ...
Hi everybody, I will have (maybe) to work soon on ARM platform hosting a linux distribution (I don't know which distribution ..). I know the project concerns video streaming, but I can't tell you more. Actually I only received the announe, and meet nobody yet. I've never worked on such platform. So the idea for me is to test before the...