Getting Syslog working on OSX Monterey

[Peter J. Holzer]

On 2022-02-28 22:05:05 +0000, Barry Scott wrote:
> On 28 Feb 2022, at 21:41, Peter J. Holzer <hjp-python at hjp.at> wrote:
> > On 2022-02-27 22:16:54 +0000, Barry wrote:
> >> I have always assumed that if I want a logger syslog handler that I would have
> >> to implement it myself. So far I have code that uses syslog directly and have
> >> not written that code yet.
> > 
> > What do you mean by using syslog directly? The syslog(3) library
> > function also just sends messages to a "syslog listener" (more commonly
> > called a syslog daemon) - at least on any unix-like system I'm familiar
> > with (which doesn't include MacOS). It will, however, always use the
> > *local* syslog daemon - AFAIK there is no standard way to open a remote
> > connection (many syslog daemons can be configured to forward messages to
> > a remote server, however).
> 
> I'm re-reading the code to check on what I'm seeing. (Its been a long
> time since I last look deeply at this code).
> 
> You can write to /dev/log if you pass that to
> SysLogHandler(address='/dev/log'), but the default is to use a socket
> to talk to a network listener on localhost:514. There are no deamons
> listening on port 514 on my Fedora systems or mac OS.

If you are saying that SysLogHandler should use a system specific
default (e.g. "/dev/log" on Linux) instead of UDP port 514 everywhere, I
agree 99 % (the remaining 1 % is my contrarian alter ego arguing that
that's really the distribution maintainer's job since a Linux
distribution might use some other socket).

If you are saying it should use the libc syslog routines, I disagree for
at least two reasons: a) they are OS specific, b) you can't configure the
destination. So that would remove useful functionality.

In any case it seems strange to me that you want to rewrite it just to
avoid passing a single parameter to the constructor (or - more likely -
adding a single line to a config file).

> What you do not see used in the SyslogHandler() is the import syslog
> and hence its nor using openlog() etc from syslog API.

For good reasons. The C syslog API is missing important functionality.

        hp

-- 
   _  | Peter J. Holzer    | Story must make more sense than reality.
|_|_) |                    |
| |   | hjp at hjp.at         |    -- Charles Stross, "Creative writing
__/   | http://www.hjp.at/ |       challenge!"
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