Ah c'mon at least try a bit harder. '''password''' is defined as:

   char password[LINE_MAX];

So that's preventing a buffer overflow and is perfectly fine.

LINE_MAX is a POSIX thing: http://pubs.opengroup.org/onlinepubs/009695399/basedefs/limi...

There's no one putting a silly limit on password length there.

I worked that out in 2 mins flat. Bear in mind I haven't even looked at the systemd source code before.

Edit: you know I've actually read some of that code and it's pretty nice.