I am trying to write a kernel module which is the combination of the usb driver and a network driver, now whenever the data is recieved by the usb driver it will be in struct urb, but the data that is required by the net driver is sk_buff, now how do i convert a urb to sk_buff, i found something similar is being done in the phonet protocol, but i couldnt understand, howexactly this is being done. Can someone explain this code.
Why can not use skb_queue of skbuff to enqueue and dequeue within qdisc in kernel programming? Also, I cannot find the source code of *enqueue of qdisc in LXR. Anyone understands qdisc and skbuff in kernel well?
i am writing a netfilter module for linux 2.6.34.6-47 / 2.6.35. while i could capture the packets on the incoming hook since the same came as a single packet in probably the allocated skbuff area by the stack, i found that packets going out of the machine are getting splitted into linear and non-linear area. skb->data gives the total length of packet as correct, but when i extract skb-> data to print it, it prints only ip and tcp header. Now to treat the data i need to extract it and then push it back on the route.
To clarify if my data is 3 bytes . the total length by passing pointers show as 55 bytes = ( 52 byte of header + 3 byte of data), but i can't access these 3 bytes by using skb->tail - skb->data. how to extract outgoing data for any further action and then put it back on route for further encapsulation by the L2 stack or whatever. will skb_linearize() or skb_linearize_cow() be of any use , if yes how and why?
Do I have the convert the int to a string using stringstream then convert the string to a char? or is there a more direct way?Also is there a way to tell the length of a int?
I want to load data into mysql database,I am having a xls file want to convert it into csv file to do it.I am running the script on apache server,was able to convert and I could see the output file,when I execute the php script in command line,but when I run it on the browser the file is not saved..??? .Whether something has to be configured on apache
I have the source code for the dll file, and I want to convert it to .so file.the dll file has declared some functions like this in the .c file declspec (dllexport) etc. I want to use this program in linux(open suse). How to do it? Is it through Wine? Then how to do it exactly.
I'm learning C and trying to write a program to convert gigabyte into byte. It will take 50% of the value given and then convert that value into byte. But the problem is the output goes into minus / negative value. Like, if I enter 22, I get output: -2147483648.
Code:
#include <stdio.h> #include <math.h> main (int argc, char* argv[]) {
I wrote a bash script a few months ago and now I want to convert it to a C program. However, i used awk a lot in my script, and I don't know what to use in place of awk. The awk calls are simple, like string splitting and math, but I don't know of any replacement for the string splitting function. Are there any C libraries that include some sort of string splitting function?
Im new to linux Iam pursuing bachelors in computer science engineering.... my final year project is to develop a "html to pdf converter using linux"... i have some basic knowledge of commands used in unix
1) Where can i get the basic idea about the existing converters... their pros and cons... .... programming...
2) Any kind of material or source where i can get basic idea of programming used for converting html pages that are linked into a single pdf..
I bet this is a Perl one-liner (or very simple python script).I have a tab separated files in which each row looks like:Unique_Eight_Character_Sequence [3 tabs] data1~moredata1~moredata1 [3 tabs] data2~ moredata2~ moredata2 ... dataN~.The output file should have each column converted into a row (with the unique character sequence copied in for the first column), and then each "~" replaced by a comma.
i was able to use XGetImage to get an image from desktop on my Linux, not the problem is that, can i use this output XImage and convert it to png? or even save this XImage to file and load it to XImage again later?
Can anyone please suggest me how can we convert a wide char data in linux which is of 32 bit to a 16bit data. I have a file which has 16bit binary data? Could any one please give me ideas.
I'm trying to migrate my company server to linux, but i have a program that is designed in access what is the best way to move access tables to a mysql database so that i can program it in PHP?
