> Greetings.
> 
> fgetln(3) reads a line from stdin (upto newline or EOF), and returns a
> pointer to this string, along with its length.  The string is not NUL
> terminated.

The history of fgetln / fgetline includes at least two libc shared
library major number bumps.  I don't recall, but I wouldn't be
surprised if one of the past versions NUL terminated the string.

	--jtc