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Let's hack
foxtrot_charlie
s3gm3nt4ti0nf4ult
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Let's hack
IT Security ninja, doing pentests and security research.
Script to get SharePoint Version and release date remotely
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This is a living document. Everything in this document is made in good
faith of being accurate, but like I just said; we don't yet know everything
about what's going on.
Update: I've disabled comments as of 2025-01-26 to avoid everyone having notifications for something a year on if someone wants to suggest a correction. Folks are free to email to suggest corrections still, of course.
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What is the Strict Aliasing Rule and Why do we care?
(OR Type Punning, Undefined Behavior and Alignment, Oh My!)
What is strict aliasing? First we will describe what is aliasing and then we can learn what being strict about it means.
In C and C++ aliasing has to do with what expression types we are allowed to access stored values through. In both C and C++ the standard specifies which expression types are allowed to alias which types. The compiler and optimizer are allowed to assume we follow the aliasing rules strictly, hence the term strict aliasing rule. If we attempt to access a value using a type not allowed it is classified as undefined behavior(UB). Once we have undefined behavior all bets are off, the results of our program are no longer reliable.
Unfortunately with strict aliasing violations, we will often obtain the results we expect, leaving the possibility the a future version of a compiler with a new optimization will break code we th
FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.
How to emulate a Raspberry Pi (Raspbian Jessie) on Mac OSX (El Capitan)
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This is a python script to generate client OpenVPN configuration files. This is based mostly on the easyrsa script and is much simpler to understand.
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