| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8" /> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0" /> | |
| <title>Browser Info</title> | |
| </head> | |
| <body> | |
| <h1>Browser Info</h1> | |
| <div id="info"></div> |
| #include <stdbool.h> | |
| #include <stdint.h> | |
| #define ASYNC(id_t) \ | |
| static id_t ASYNC__=0; switch (ASYNC__) case 0: while(1) | |
| #define YIELD() \ | |
| do { ASYNC__=(__COUNTER__+2)/2; return; case (__COUNTER__+1)/2: ASYNC__=0; } while(0) |
| /* | |
| Simpler interface to dirname() because dirname() has drawbacks: | |
| - may modify the argument | |
| - may return a pointer to static memory which gets | |
| overwritten in subsequent calls | |
| This function never modifies the argument and returns a pointer | |
| to freshly allocated memory. |
This tutorial describes how to install TLS to a mail server consisting of Postfix and/or Dovecot by using Let's Encrypt certificates with automatic renewing and firewall management.
The system used for this tutorial was:
$ lsb_release -idrc
Distributor ID: Ubuntu