Sayan Goswami say4n

## macOS Internals.md

      
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                kconner
                / macOS Internals.md
            
            
              Last active
              April 19, 2024 20:06
            
              
                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:

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

      
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                0xdevalias
                / accessing-apple-screen-time-data.md
            
            
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              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


## inherit_environment_variables_from_pid_1.md

      
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                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")

## killbutmakeitlooklikeanaccident.sh
#!/bin/bash

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

## tcpdump.txt
# My ISP-provided fiber optical modem broadcasts a line of a poem every ten seconds. Here's the tcpdump of the complete poem.
# The optical modem is made by Shanghai Nokia-Bell Co.,Ltd and its model number is G-140W-UD. It's provided by my ISP, China Unicom in Shenzhen.

$ tcpdump -i vlan10 ether proto 0x8300
15:59:00.720301 00:00:00:00:00:12 (oui Ethernet) > Broadcast, ethertype Unknown (0x8300), length 72:
	0x0000:  0000 0000 e4ea 8386 d93c 5468 6520 6461  .........<The.da
	0x0010:  7920 4920 6c6f 7374 206d 7920 7665 7279  y.I.lost.my.very
	0x0020:  2066 6972 7374 2074 6f6f 7468 2c00 0000  .first.tooth,...
	0x0030:  0000 0000 0000 0000 0000                 ..........
15:59:10.740778 00:00:00:00:00:12 (oui Ethernet) > Broadcast, ethertype Unknown (0x8300), length 72:

## 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/

## 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"/>

## 1_drawable_ic_hash_io16.xml
<?xml version="1.0" encoding="utf-8"?>
<!--
  Copyright 2016 Google Inc.

  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

## .tarsnaprc
### Recommended options
humanize-numbers

# Tarsnap cache directory
cachedir /usr/local/tarsnap-cache

# Tarsnap key file
keyfile ~/.tarsnap/tarsnap.key

# Don't archive files which have the nodump flag set
	#!/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")
	#!/bin/bash

	gdb -p "$1" -batch -ex 'set {short}$rip = 0x050f' -ex 'set $rax=231' -ex 'set $rdi=0' -ex 'cont'
	# My ISP-provided fiber optical modem broadcasts a line of a poem every ten seconds. Here's the tcpdump of the complete poem.
	# The optical modem is made by Shanghai Nokia-Bell Co.,Ltd and its model number is G-140W-UD. It's provided by my ISP, China Unicom in Shenzhen.

	$ tcpdump -i vlan10 ether proto 0x8300
	15:59:00.720301 00:00:00:00:00:12 (oui Ethernet) > Broadcast, ethertype Unknown (0x8300), length 72:
	0x0000: 0000 0000 e4ea 8386 d93c 5468 6520 6461 .........<The.da
	0x0010: 7920 4920 6c6f 7374 206d 7920 7665 7279 y.I.lost.my.very
	0x0020: 2066 6972 7374 2074 6f6f 7468 2c00 0000 .first.tooth,...
	0x0030: 0000 0000 0000 0000 0000 ..........
	15:59:10.740778 00:00:00:00:00:12 (oui Ethernet) > Broadcast, ethertype Unknown (0x8300), length 72:
	#!/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/
	<?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"/>
	<?xml version="1.0" encoding="utf-8"?>
	<!--
	Copyright 2016 Google Inc.

	Licensed under the Apache License, Version 2.0 (the "License");
	you may not use this file except in compliance with the License.
	You may obtain a copy of the License at

	http://www.apache.org/licenses/LICENSE-2.0
	### Recommended options
	humanize-numbers

	# Tarsnap cache directory
	cachedir /usr/local/tarsnap-cache

	# Tarsnap key file
	keyfile ~/.tarsnap/tarsnap.key

	# Don't archive files which have the nodump flag set