server/fd.c: Prevent using uninitialized pointers

[Vitaliy Margolen]

James McKenzie wrote:
> [code]
> 
> int a = 0;
> char b = NULL;
> bool c = TRUE;
> 
> [/code]
> 
> Without this, we cannot assume anything.

Static variables are different. They are always initialized to 0. In your
example you show regular variables only. Their initial value is not defined.

Vitaliy.