I recently found, that I can make Linux system calls from .NET relatively easy. For example, to see if I need sudo I just make a signature like this: Neat. So much easier and faster than everything else, right? This is the simplest possible system call, other use strings and structures. After some digging in …
Tag: libc
How to print the content of a text file to STDOUT in Linux Assembly Language using c library functions?
First I tried opening a file with fopen function and print content of the file using fprint function but it was just printing a bunch of symbols to the terminal. After a while I realized that it does not take pointer to a stream as argument and above mentioned behaviour was expected. It was printing the actua…
Installing libc6 2.33 on debian
I would like to install libc6 2.33 onto a debian docker container for security patch reasons. I can see here that it has been released, and also it is noted here that 2.33 is available. Is there any easy way to get this installed onto a debian docker container? Is there a hard way to get this installed onto a
Linux: Moved `/lib/x86_64-linux-gnu/ld-2.28.so` and now SSH is dead [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. This question does not appear to be about programming within the scope defined in the help center. Closed 2 years ago. Improve this question The problem is basically already in the title: Because I wasn’…
Why does loading the libc shared library have “‘LibraryLoader’ object is not callable” error?
From https://en.wikipedia.org/wiki/Foreign_function_interface the ctypes module can load C functions from shared libraries/DLLs on-the-fly and translate simple data types automatically between Python and C semantics as follows: On Lubuntu 18.04 I was wondering why loading the libc shared library has “&#…
Putty: Network Error: Software caused connection abort
I have RHEL 6.8 Machine installed in a VM. I moved one file libc.so.6 from /lib64/ to /lib64/backup/. Since then I am not able to connect to that machine through Putty or WinSCP. Both the tools give the same error. Software caused connection abort. As I haven’t created this VM, I don’t have permis…
gdb core dump can not see any symbols after “sudo apt-get install libc6-dbg”
I am trying to debug a program in Ubuntu 12.04(x86_64) LTS with core dump file. At the beginning, the “bt” command is ok, just like below I want to see the symbol in libc.so.6 , so I install libc6-dbg using but after install I get all the thing wrong , showing in the below: I try to remvoe lib6c-d…
version `GLIBC_2.11′ not found while using gcc
I have problem using gcc/g++ after I changed the machine I use, I installed gcc-4.9.2 in my previous machine, when I moved to the new machine, I copied gcc folder to the new machine. When I try to use I get this error : I have already checked this question : `GLIBC_2.11′ not found If it says right, the …
Is malloc/free a syscall or a library routine provided by libc?
If malloc/free is implemented as a library routine in libc, then is it implemented on top of the sbrk syscall or the mmap syscall, or something else? And to be general, does the function declared in sys/syscall.h contains ALL the system calls in the target machine? Answer malloc and free are standard C librar…