Sayan Goswami say4n

## macOS Internals.md

      
              1 file
            
          
              86 forks
            
          
              4 comments
            
          
              1588 stars
            
          
                kconner
                / macOS Internals.md
            
            
              Last active
              April 22, 2024 21:28
            
              
                macOS Internals
              
          
    macOS Internals

Understand your Mac and iPhone more deeply by tracing the evolution of Mac OS X from prelease to Swift. John Siracusa delivers the details.
Starting Points

How to use this gist

You've got two main options:

  
## excuses.txt
Actually, that's a feature
Don't worry, that value is only wrong half of the time
Even though it doesn't work, how does it feel?
Everything looks fine my end
How is that possible?
I broke that deliberately to do some testing
I can have a look but there's a lot of if statements in that code!
I can't make that a priority right now
I can't test everything
I couldn't find any examples of how that can be done anywhere else in the project

## accessing-apple-screen-time-data.md

      
              1 file
            
          
              1 fork
            
          
              0 comments
            
          
              7 stars
            
          
                0xdevalias
                / accessing-apple-screen-time-data.md
            
            
              Last active
              April 9, 2024 01:19
            
              
                Some notes on accessing / exporting Apple's Screen Time data
              
          
    Accessing / Exporting Apple's Screen Time Data

Some notes on accessing / exporting Apple's Screen Time data
Table of Contents


knowledgeC.db SQLite CoreData Models / Tables
Unsorted
See Also


## irc.md

      
              1 file
            
          
              112 forks
            
          
              33 comments
            
          
              466 stars
            
          
                xero
                / irc.md
            
            
              Last active
              March 29, 2024 13:30
            
              
                irc cheat sheet
              
          
    IRC Reference

Not intended as a guide for newbies, more like a "cheat sheet" for the somewhat experienced IRC user, especially one who wields some power over a channel.
The Basics


/join #channel

Joins the specified channel.


/part #channel
Leaves the specified channel.


## killbutmakeitlooklikeanaccident.sh
#!/bin/bash

gdb -p "$1" -batch -ex 'set {short}$rip = 0x050f' -ex 'set $rax=231' -ex 'set $rdi=0' -ex 'cont'

## inherit_environment_variables_from_pid_1.md

      
              1 file
            
          
              4 forks
            
          
              2 comments
            
          
              21 stars
            
          
                milesrichardson
                / inherit_environment_variables_from_pid_1.md
            
            
              Created
              January 21, 2023 07:35
            
              
                inherit environment variables from PID 1
              
          
    You can inherit the environment variables from PID 1 by iterating over the list of null-terminated strings
in /proc/1/environ, parsing the first characters up to the first = as the variable name, setting the
remaining value as that variable, and exporting it.
The Code Snippet
This works with multiline environment variables, and environment variables with arbitrary values, like
strings, including = or JSON blobs.
Paste this in your current terminal session to inherit the environment variables from PID 1:

  
## sync-unmonitored.sh
#!/bin/bash
# Find existing files in download/complete that are not in movies or tvshows.

export DOWNLOAD_FOLDER=path/to/downloads

export MOVIES_FOLDER=path/to/movies
export TVSHOWS_FOLDER=path/to/tvshows

findExistingFile() {
  file=$(find $MOVIES_FOLDER/ $TVSHOWS_FOLDER/ -samefile "$1")

## partial_evaluation.md

      
              1 file
            
          
              3 forks
            
          
              2 comments
            
          
              25 stars
            
          
                tomykaira
                / partial_evaluation.md
            
            
              Created
              July 22, 2012 14:55
            
              
                Partial Evaluation, Futamura Projection And Their Applications
              
          
    Partial Evaluation, Futamura Projection And Their Applications

What Partial Evaluation Is?

Partial evaluation means to fix some variables in the given code
before execution.  With a traditional implementation of a compiler or
an interpreter, all variables are replaced with its value on each
evaluation of that variable.  This is because a variable can change at
any timing.  This is, however, not always true in actual applications.
Almost all of large applications has setting variables and data

  
## infosec-subscriptions.opml
<?xml version="1.0" encoding="UTF-8"?>

<opml version="1.0">
    <head>
        <title>Christophe subscriptions in feedly Cloud</title>
    </head>
    <body>
        <outline text="Security" title="Security">
            <outline type="rss" text="Schneier on Security" title="Schneier on Security" xmlUrl="http://www.schneier.com/blog/index.rdf" htmlUrl="https://www.schneier.com/blog/"/>
            <outline type="rss" text="Rhino Security Labs" title="Rhino Security Labs" xmlUrl="http://www.rhinosecuritylabs.com/blog/feed/" htmlUrl="https://rhinosecuritylabs.com"/>

## widevine.sh
#!/bin/bash -e
curl -O https://dl.google.com/chrome/mac/stable/GGRO/googlechrome.dmg
hdiutil attach googlechrome.dmg
SRC=/Volumes/Google\ Chrome/Google\ Chrome.app/Contents/Frameworks/Google\ Chrome\ Framework.framework/Libraries/WidevineCdm
DEST=/Applications/Chromium.app/Contents/Frameworks/Chromium\ Framework.framework/Libraries/
cp -R "$SRC" "$DEST"
hdiutil detach /Volumes/Google\ Chrome/
	Actually, that's a feature
	Don't worry, that value is only wrong half of the time
	Even though it doesn't work, how does it feel?
	Everything looks fine my end
	How is that possible?
	I broke that deliberately to do some testing
	I can have a look but there's a lot of if statements in that code!
	I can't make that a priority right now
	I can't test everything
	I couldn't find any examples of how that can be done anywhere else in the project
	#!/bin/bash

	gdb -p "$1" -batch -ex 'set {short}$rip = 0x050f' -ex 'set $rax=231' -ex 'set $rdi=0' -ex 'cont'
	#!/bin/bash
	# Find existing files in download/complete that are not in movies or tvshows.

	export DOWNLOAD_FOLDER=path/to/downloads

	export MOVIES_FOLDER=path/to/movies
	export TVSHOWS_FOLDER=path/to/tvshows

	findExistingFile() {
	file=$(find $MOVIES_FOLDER/ $TVSHOWS_FOLDER/ -samefile "$1")
	<?xml version="1.0" encoding="UTF-8"?>

	<opml version="1.0">
	<head>
	<title>Christophe subscriptions in feedly Cloud</title>
	</head>
	<body>
	<outline text="Security" title="Security">
	<outline type="rss" text="Schneier on Security" title="Schneier on Security" xmlUrl="http://www.schneier.com/blog/index.rdf" htmlUrl="https://www.schneier.com/blog/"/>
	<outline type="rss" text="Rhino Security Labs" title="Rhino Security Labs" xmlUrl="http://www.rhinosecuritylabs.com/blog/feed/" htmlUrl="https://rhinosecuritylabs.com"/>
	#!/bin/bash -e
	curl -O https://dl.google.com/chrome/mac/stable/GGRO/googlechrome.dmg
	hdiutil attach googlechrome.dmg
	SRC=/Volumes/Google\ Chrome/Google\ Chrome.app/Contents/Frameworks/Google\ Chrome\ Framework.framework/Libraries/WidevineCdm
	DEST=/Applications/Chromium.app/Contents/Frameworks/Chromium\ Framework.framework/Libraries/
	cp -R "$SRC" "$DEST"
	hdiutil detach /Volumes/Google\ Chrome/