rework the daemon to do fork+exec It uses the 'common' proc.c from various OpenBSD-daemons. gmid grew organically bit by bit and it was also the first place where I tried to implement privsep. It wasn't done very well, in fact the parent process (that retains root privileges) just fork()s a generation of servers, all sharing *exactly* the same address space. No good! Now, we fork() and re-exec() ourselves, so that each process has a fresh address space. Some features (require client ca for example) are temporarly disabled, will be fixed in subsequent commits. The "ge" program is also temporarly disabled as it needs tweaks to do privsep too.

regress: use -P with an absolute path

absolutify the path to the pid file

add missing include of gmid.h

use fatal() in code used in the daemon

fix asprintf failure check

switch to the more usual log.c

use memchr instead of rolling a custom one

rename log.[ch] to logger.[ch]

predeclare struct client

rename PROC_MAX to PREFORK_MAX

nitpick: fix snprintf check

adjust comments

move config-related code to config.c reuse it in ge too.

call setlocale()