How to Get Fired Using Switch Statements and Statement Expressions
An orchard of batshit insane things done using the switch C keyword. For example, co-routines:
#include#define coroutine_begin() static int state=0; switch(state) { case 0: #define coroutine_return(x) { state=__LINE__; return x; case __LINE__:; } #define coroutine_finish() } int get_next(void) { static int i = 0; coroutine_begin(); while (1){ coroutine_return(++i); coroutine_return(100); } coroutine_finish(); } int main(void){ printf("i is %d\n", get_next()); /* Prints 'i is 1' */ printf("i is %d\n", get_next()); /* Prints 'i is 100' */ printf("i is %d\n", get_next()); /* Prints 'i is 2' */ printf("i is %d\n", get_next()); /* Prints 'i is 100' */ return 0; }
https://blog.robertelder.org/switch-statements-statement-expressions/
Color blindness
An interesting article by Rob Pike on moderate deuteranopia:
The most common variety of color blindness is called red-green color blindness, or deuteranopia, and it affects about 6% of human males.
https://commandcenter.blogspot.com/2020/09/color-blindness-is-inaccurate-term.html
How to properly manage ssh keys for server access
Summary: By using certificates, revoked certificate lists and certificate roles.
https://www.paepper.com/blog/posts/how-to-properly-manage-ssh-keys-for-server-access/
When you browse Instagram and find former Australian Prime Minister Tony Abbott's passport number
A very funny story about why you shouldn't post a photo of your flight boarding pass to Instagram and how website security is crap:
The Website Obesity Crisis
[...]text-based websites should not exceed in size the major works of Russian literature.
[...]If you open [a] tweet in a browser, you'll see the page is 900 KB big.
That's almost 100 KB more than the full text of The Master and Margarita, Bulgakov’s funny and enigmatic novel about the Devil visiting Moscow with his retinue (complete with a giant cat!) during the Great Purge of 1937, intercut with an odd vision of the life of Pontius Pilate, Jesus Christ, and the devoted but unreliable apostle Matthew.
For a single tweet.
Inside a £30 record player
Even on a tangentially relevant article, somebody had to say it:
Vinyl is not a great format for high-fidelity audio. The constant rotational velocity design means that the sound quality gets progressively worse towards the centre of the record. [...]
Anyone who says vinyl is better than a CD is a muppet.
Retrieve WLAN PSK via nmcli
Did you know you can get the cleartext PSK of the Wireless LAN you're connected to by using nmcli 🤯?