Now that syslogd(8) supports SSL shutdown when the TLS connection
terminates, do SSL shutdown in the test client. This will detect
SSL handshake errors also with TLS 1.3 if the CA of the client
certificate is invalid.
test races reported by anton@; debugged with Carsten Arzig

In the sendsyslog-dropped test the client has to write a log message
before syslogd is running. To fix a race in regress, delay the
syslogd startup until the message has been written. For debugging
add the process class to all die messages.

Syslogd's debug and error messages have changed a bit, adapt test.

Test syslogd logging to a tty which belongs to a user. This is
done with a utmp entry for a pty fake login. All messages are read
from the pty and written into a log file.

Add tests for syslogd TLS accept and receive encrypted messages.

In the sendsyslog-dropped test the client has to write a log message
before syslogd is running. To fix a race in regress, delay the
syslogd startup until the message has been written. For debugging
add the process class to all die messages.

Syslogd's debug and error messages have changed a bit, adapt test.

Test syslogd logging to a tty which belongs to a user. This is
done with a utmp entry for a pty fake login. All messages are read
from the pty and written into a log file.

Add tests for syslogd TLS accept and receive encrypted messages.

Syslogd's debug and error messages have changed a bit, adapt test.

Test syslogd logging to a tty which belongs to a user. This is
done with a utmp entry for a pty fake login. All messages are read
from the pty and written into a log file.

Add tests for syslogd TLS accept and receive encrypted messages.