wait for logger after fatal() With -f, when the main process exits after a fatal() (usually) the shell prompt is printed before the logger message. This adds a small poll to wait for the logger process to exit.

fatal: send log to logger

send priority to the logger process

lower log priority for fatal errors from CRIT to ERR found by Anna, thanks!

print the datetime when logging to stderr

move all sandbox-related code to sandbox.c while there, add capsicum for the logger process

refactoring: imsg everywhere use imsg to handle ALL kinds of IPC in gmid. This simplifies and shorten the code, and makes everything more uniform too.

fix out-of-bounds access obviously msg[datalen] is an off-by-one

move log_init & vars to gmid.c, retain logger_main in log.c this is to let the regression suite compile

move vhost_should_log call to server.c log.o is linked to some regress/ stuff. Calling from there a vhost_* function means that we should link the regress/stuff to server.o too (and that would pull in other stuff...). Moving the call is easier, and also probably better.

add `log on/off' to enable/disable logs per-location

don't directly include sys/queue.h

tests and compat for imsg

moving logging to its own process

fix various compilation errors Include gmid.h as first header in every file, as it then includes config.h (that defines _GNU_SOURCE for instance). Fix also a warning about unsigned vs signed const char pointers in openssl.