I have recently been looking into the glibc resolver code.It started out like any other troubleshooting effort, just trying to get a good foothold and identify where things could go wrong and how to ensure they went right. Once I got in the code… it was a real “took the red pill” sort of moment. […]
I spent some time working backwards from the ASCII values of “Hello, world!”, creating a mathematic relationship between the characters and then obfuscating the pattern of those characters. Add a little bit of nasty looking Perl and you are left with a very ugly variation of the “Hello world” program: #!/usr/bin/perlmy ($a,$b,$c,$d,$x,$z) = qw(100 3 […]
Some shell scripting languages read scripts as they are interpreted. I wrote this script as an experiment in looping without a loop. This functioned on an older version of ksh on HP-UX, but I haven’t been able to find a newer version of a shell that this still works on.# This script returns 0 through […]
Wow… so far, off to a bad start.We’ll call this a place-holder for now… ELF, ld & shared object fun LD_LIBRARY_PATH Most developers have encountered LD_LIBRARY_PATH either in testing shared libraries used in their project or in development of their own code. It is used to instruct the runtime linker to search for libraries in […]
