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1 | package Sys::Syslog; |
2 | require 5.000; | |
3 | require Exporter; | |
4 | require DynaLoader; | |
5 | use Carp; | |
6 | ||
7 | @ISA = qw(Exporter DynaLoader); | |
8 | @EXPORT = qw(openlog closelog setlogmask syslog); | |
9 | @EXPORT_OK = qw(setlogsock); | |
10 | $VERSION = '0.03'; | |
11 | ||
12 | # it would be nice to try stream/unix first, since that will be | |
13 | # most efficient. However streams are dodgy - see _syslog_send_stream | |
14 | #my @connectMethods = ( 'stream', 'unix', 'tcp', 'udp' ); | |
15 | my @connectMethods = ( 'tcp', 'udp', 'unix', 'stream', 'console' ); | |
16 | if ($^O =~ /^(freebsd|linux)$/) { | |
17 | @connectMethods = grep { $_ ne 'udp' } @connectMethods; | |
18 | } | |
19 | my @defaultMethods = @connectMethods; | |
20 | my $syslog_path = undef; | |
21 | my $transmit_ok = 0; | |
22 | my $current_proto = undef; | |
23 | my $failed = undef; | |
24 | my $fail_time = undef; | |
25 | ||
26 | use Socket; | |
27 | use Sys::Hostname; | |
28 | ||
29 | # adapted from syslog.pl | |
30 | # | |
31 | # Tom Christiansen <tchrist@convex.com> | |
32 | # modified to use sockets by Larry Wall <lwall@jpl-devvax.jpl.nasa.gov> | |
33 | # NOTE: openlog now takes three arguments, just like openlog(3) | |
34 | # Modified to add UNIX domain sockets by Sean Robinson <robinson_s@sc.maricopa.edu> | |
35 | # with support from Tim Bunce <Tim.Bunce@ig.co.uk> and the perl5-porters mailing list | |
36 | # Modified to use an XS backend instead of syslog.ph by Tom Hughes <tom@compton.nu> | |
37 | ||
38 | =head1 NAME | |
39 | ||
40 | Sys::Syslog, openlog, closelog, setlogmask, syslog - Perl interface to the UNIX syslog(3) calls | |
41 | ||
42 | =head1 SYNOPSIS | |
43 | ||
44 | use Sys::Syslog; # all except setlogsock, or: | |
45 | use Sys::Syslog qw(:DEFAULT setlogsock); # default set, plus setlogsock | |
46 | ||
47 | setlogsock $sock_type; | |
48 | openlog $ident, $logopt, $facility; | |
49 | syslog $priority, $format, @args; | |
50 | $oldmask = setlogmask $mask_priority; | |
51 | closelog; | |
52 | ||
53 | =head1 DESCRIPTION | |
54 | ||
55 | Sys::Syslog is an interface to the UNIX C<syslog(3)> program. | |
56 | Call C<syslog()> with a string priority and a list of C<printf()> args | |
57 | just like C<syslog(3)>. | |
58 | ||
59 | Syslog provides the functions: | |
60 | ||
61 | =over 4 | |
62 | ||
63 | =item openlog $ident, $logopt, $facility | |
64 | ||
65 | I<$ident> is prepended to every message. I<$logopt> contains zero or | |
66 | more of the words I<pid>, I<ndelay>, I<nowait>. The cons option is | |
67 | ignored, since the failover mechanism will drop down to the console | |
68 | automatically if all other media fail. I<$facility> specifies the | |
69 | part of the system | |
70 | ||
71 | =item syslog $priority, $format, @args | |
72 | ||
73 | If I<$priority> permits, logs I<($format, @args)> | |
74 | printed as by C<printf(3V)>, with the addition that I<%m> | |
75 | is replaced with C<"$!"> (the latest error message). | |
76 | ||
77 | =item setlogmask $mask_priority | |
78 | ||
79 | Sets log mask I<$mask_priority> and returns the old mask. | |
80 | ||
81 | =item setlogsock $sock_type [$stream_location] (added in 5.004_02) | |
82 | ||
83 | Sets the socket type to be used for the next call to | |
84 | C<openlog()> or C<syslog()> and returns TRUE on success, | |
85 | undef on failure. | |
86 | ||
87 | A value of 'unix' will connect to the UNIX domain socket returned by | |
88 | the C<_PATH_LOG> macro (if your system defines it) in F<syslog.ph>. A | |
89 | value of 'stream' will connect to the stream indicated by the pathname | |
90 | provided as the optional second parameter. A value of 'inet' will | |
91 | connect to an INET socket (either tcp or udp, tried in that order) | |
92 | returned by getservbyname(). 'tcp' and 'udp' can also be given as | |
93 | values. The value 'console' will send messages directly to the | |
94 | console, as for the 'cons' option in the logopts in openlog(). | |
95 | ||
96 | A reference to an array can also be passed as the first parameter. | |
97 | When this calling method is used, the array should contain a list of | |
98 | sock_types which are attempted in order. | |
99 | ||
100 | The default is to try tcp, udp, unix, stream, console. | |
101 | ||
102 | Giving an invalid value for sock_type will croak. | |
103 | ||
104 | =item closelog | |
105 | ||
106 | Closes the log file. | |
107 | ||
108 | =back | |
109 | ||
110 | Note that C<openlog> now takes three arguments, just like C<openlog(3)>. | |
111 | ||
112 | =head1 EXAMPLES | |
113 | ||
114 | openlog($program, 'cons,pid', 'user'); | |
115 | syslog('info', 'this is another test'); | |
116 | syslog('mail|warning', 'this is a better test: %d', time); | |
117 | closelog(); | |
118 | ||
119 | syslog('debug', 'this is the last test'); | |
120 | ||
121 | setlogsock('unix'); | |
122 | openlog("$program $$", 'ndelay', 'user'); | |
123 | syslog('notice', 'fooprogram: this is really done'); | |
124 | ||
125 | setlogsock('inet'); | |
126 | $! = 55; | |
127 | syslog('info', 'problem was %m'); # %m == $! in syslog(3) | |
128 | ||
129 | =head1 SEE ALSO | |
130 | ||
131 | L<syslog(3)> | |
132 | ||
133 | =head1 AUTHOR | |
134 | ||
135 | Tom Christiansen E<lt>F<tchrist@perl.com>E<gt> and Larry Wall | |
136 | E<lt>F<larry@wall.org>E<gt>. | |
137 | ||
138 | UNIX domain sockets added by Sean Robinson | |
139 | E<lt>F<robinson_s@sc.maricopa.edu>E<gt> with support from Tim Bunce | |
140 | E<lt>F<Tim.Bunce@ig.co.uk>E<gt> and the perl5-porters mailing list. | |
141 | ||
142 | Dependency on F<syslog.ph> replaced with XS code by Tom Hughes | |
143 | E<lt>F<tom@compton.nu>E<gt>. | |
144 | ||
145 | Code for constant()s regenerated by Nicholas Clark E<lt>F<nick@ccl4.org>E<gt>. | |
146 | ||
147 | Failover to different communication modes by Nick Williams | |
148 | E<lt>F<Nick.Williams@morganstanley.com>E<gt>. | |
149 | ||
150 | =cut | |
151 | ||
152 | sub AUTOLOAD { | |
153 | # This AUTOLOAD is used to 'autoload' constants from the constant() | |
154 | # XS function. | |
155 | ||
156 | my $constname; | |
157 | our $AUTOLOAD; | |
158 | ($constname = $AUTOLOAD) =~ s/.*:://; | |
159 | croak "&Sys::Syslog::constant not defined" if $constname eq 'constant'; | |
160 | my ($error, $val) = constant($constname); | |
161 | if ($error) { | |
162 | croak $error; | |
163 | } | |
164 | *$AUTOLOAD = sub { $val }; | |
165 | goto &$AUTOLOAD; | |
166 | } | |
167 | ||
168 | bootstrap Sys::Syslog $VERSION; | |
169 | ||
170 | $maskpri = &LOG_UPTO(&LOG_DEBUG); | |
171 | ||
172 | sub openlog { | |
173 | ($ident, $logopt, $facility) = @_; # package vars | |
174 | $lo_pid = $logopt =~ /\bpid\b/; | |
175 | $lo_ndelay = $logopt =~ /\bndelay\b/; | |
176 | $lo_nowait = $logopt =~ /\bnowait\b/; | |
177 | return 1 unless $lo_ndelay; | |
178 | &connect; | |
179 | } | |
180 | ||
181 | sub closelog { | |
182 | $facility = $ident = ''; | |
183 | &disconnect; | |
184 | } | |
185 | ||
186 | sub setlogmask { | |
187 | local($oldmask) = $maskpri; | |
188 | $maskpri = shift; | |
189 | $oldmask; | |
190 | } | |
191 | ||
192 | sub setlogsock { | |
193 | local($setsock) = shift; | |
194 | $syslog_path = shift; | |
195 | &disconnect if $connected; | |
196 | $transmit_ok = 0; | |
197 | @fallbackMethods = (); | |
198 | @connectMethods = @defaultMethods; | |
199 | if (ref $setsock eq 'ARRAY') { | |
200 | @connectMethods = @$setsock; | |
201 | } elsif (lc($setsock) eq 'stream') { | |
202 | $syslog_path = '/dev/log' unless($syslog_path); | |
203 | if (!-w $syslog_path) { | |
204 | carp "stream passed to setlogsock, but $syslog_path is not writable"; | |
205 | return undef; | |
206 | } else { | |
207 | @connectMethods = ( 'stream' ); | |
208 | } | |
209 | } elsif (lc($setsock) eq 'unix') { | |
210 | if (length _PATH_LOG() && !defined $syslog_path) { | |
211 | $syslog_path = _PATH_LOG(); | |
212 | @connectMethods = ( 'unix' ); | |
213 | } else { | |
214 | carp 'unix passed to setlogsock, but path not available'; | |
215 | return undef; | |
216 | } | |
217 | } elsif (lc($setsock) eq 'tcp') { | |
218 | if (getservbyname('syslog', 'tcp') || getservbyname('syslogng', 'tcp')) { | |
219 | @connectMethods = ( 'tcp' ); | |
220 | } else { | |
221 | carp "tcp passed to setlogsock, but tcp service unavailable"; | |
222 | return undef; | |
223 | } | |
224 | } elsif (lc($setsock) eq 'udp') { | |
225 | if (getservbyname('syslog', 'udp')) { | |
226 | @connectMethods = ( 'udp' ); | |
227 | } else { | |
228 | carp "udp passed to setlogsock, but udp service unavailable"; | |
229 | return undef; | |
230 | } | |
231 | } elsif (lc($setsock) eq 'inet') { | |
232 | @connectMethods = ( 'tcp', 'udp' ); | |
233 | } elsif (lc($setsock) eq 'console') { | |
234 | @connectMethods = ( 'console' ); | |
235 | } else { | |
236 | carp "Invalid argument passed to setlogsock; must be 'stream', 'unix', 'tcp', 'udp' or 'inet'"; | |
237 | } | |
238 | return 1; | |
239 | } | |
240 | ||
241 | sub syslog { | |
242 | local($priority) = shift; | |
243 | local($mask) = shift; | |
244 | local($message, $whoami); | |
245 | local(@words, $num, $numpri, $numfac, $sum); | |
246 | local($facility) = $facility; # may need to change temporarily. | |
247 | ||
248 | croak "syslog: expected both priority and mask" unless $mask && $priority; | |
249 | ||
250 | @words = split(/\W+/, $priority, 2);# Allow "level" or "level|facility". | |
251 | undef $numpri; | |
252 | undef $numfac; | |
253 | foreach (@words) { | |
254 | $num = &xlate($_); # Translate word to number. | |
255 | if (/^kern$/ || $num < 0) { | |
256 | croak "syslog: invalid level/facility: $_"; | |
257 | } | |
258 | elsif ($num <= &LOG_PRIMASK) { | |
259 | croak "syslog: too many levels given: $_" if defined($numpri); | |
260 | $numpri = $num; | |
261 | return 0 unless &LOG_MASK($numpri) & $maskpri; | |
262 | } | |
263 | else { | |
264 | croak "syslog: too many facilities given: $_" if defined($numfac); | |
265 | $facility = $_; | |
266 | $numfac = $num; | |
267 | } | |
268 | } | |
269 | ||
270 | croak "syslog: level must be given" unless defined($numpri); | |
271 | ||
272 | if (!defined($numfac)) { # Facility not specified in this call. | |
273 | $facility = 'user' unless $facility; | |
274 | $numfac = &xlate($facility); | |
275 | } | |
276 | ||
277 | &connect unless $connected; | |
278 | ||
279 | $whoami = $ident; | |
280 | ||
281 | if (!$whoami && $mask =~ /^(\S.*?):\s?(.*)/) { | |
282 | $whoami = $1; | |
283 | $mask = $2; | |
284 | } | |
285 | ||
286 | unless ($whoami) { | |
287 | ($whoami = getlogin) || | |
288 | ($whoami = getpwuid($<)) || | |
289 | ($whoami = 'syslog'); | |
290 | } | |
291 | ||
292 | $whoami .= "[$$]" if $lo_pid; | |
293 | ||
294 | $mask =~ s/%m/$!/g; | |
295 | $mask .= "\n" unless $mask =~ /\n$/; | |
296 | $message = sprintf ($mask, @_); | |
297 | ||
298 | $sum = $numpri + $numfac; | |
299 | my $buf = "<$sum>$whoami: $message\0"; | |
300 | ||
301 | # it's possible that we'll get an error from sending | |
302 | # (e.g. if method is UDP and there is no UDP listener, | |
303 | # then we'll get ECONNREFUSED on the send). So what we | |
304 | # want to do at this point is to fallback onto a different | |
305 | # connection method. | |
306 | while (scalar @fallbackMethods || $syslog_send) { | |
307 | if ($failed && (time - $fail_time) > 60) { | |
308 | # it's been a while... maybe things have been fixed | |
309 | @fallbackMethods = (); | |
310 | disconnect(); | |
311 | $transmit_ok = 0; # make it look like a fresh attempt | |
312 | &connect; | |
313 | } | |
314 | if ($connected && !connection_ok()) { | |
315 | # Something was OK, but has now broken. Remember coz we'll | |
316 | # want to go back to what used to be OK. | |
317 | $failed = $current_proto unless $failed; | |
318 | $fail_time = time; | |
319 | disconnect(); | |
320 | } | |
321 | &connect unless $connected; | |
322 | $failed = undef if ($current_proto && $failed && $current_proto eq $failed); | |
323 | if ($syslog_send) { | |
324 | if (&{$syslog_send}($buf)) { | |
325 | $transmit_ok++; | |
326 | return 1; | |
327 | } | |
328 | # typically doesn't happen, since errors are rare from write(). | |
329 | disconnect(); | |
330 | } | |
331 | } | |
332 | # could not send, could not fallback onto a working | |
333 | # connection method. Lose. | |
334 | return 0; | |
335 | } | |
336 | ||
337 | sub _syslog_send_console { | |
338 | my ($buf) = @_; | |
339 | chop($buf); # delete the NUL from the end | |
340 | # The console print is a method which could block | |
341 | # so we do it in a child process and always return success | |
342 | # to the caller. | |
343 | if (my $pid = fork) { | |
344 | if ($lo_nowait) { | |
345 | return 1; | |
346 | } else { | |
347 | if (waitpid($pid, 0) >= 0) { | |
348 | return ($? >> 8); | |
349 | } else { | |
350 | # it's possible that the caller has other | |
351 | # plans for SIGCHLD, so let's not interfere | |
352 | return 1; | |
353 | } | |
354 | } | |
355 | } else { | |
356 | if (open(CONS, ">/dev/console")) { | |
357 | my $ret = print CONS $buf . "\r"; | |
358 | exit ($ret) if defined $pid; | |
359 | close CONS; | |
360 | } | |
361 | exit if defined $pid; | |
362 | } | |
363 | } | |
364 | ||
365 | sub _syslog_send_stream { | |
366 | my ($buf) = @_; | |
367 | # XXX: this only works if the OS stream implementation makes a write | |
368 | # look like a putmsg() with simple header. For instance it works on | |
369 | # Solaris 8 but not Solaris 7. | |
370 | # To be correct, it should use a STREAMS API, but perl doesn't have one. | |
371 | return syswrite(SYSLOG, $buf, length($buf)); | |
372 | } | |
373 | sub _syslog_send_socket { | |
374 | my ($buf) = @_; | |
375 | return syswrite(SYSLOG, $buf, length($buf)); | |
376 | #return send(SYSLOG, $buf, 0); | |
377 | } | |
378 | ||
379 | sub xlate { | |
380 | local($name) = @_; | |
381 | $name = uc $name; | |
382 | $name = "LOG_$name" unless $name =~ /^LOG_/; | |
383 | $name = "Sys::Syslog::$name"; | |
384 | # Can't have just eval { &$name } || -1 because some LOG_XXX may be zero. | |
385 | my $value = eval { &$name }; | |
386 | defined $value ? $value : -1; | |
387 | } | |
388 | ||
389 | sub connect { | |
390 | @fallbackMethods = @connectMethods unless (scalar @fallbackMethods); | |
391 | if ($transmit_ok && $current_proto) { | |
392 | # Retry what we were on, because it's worked in the past. | |
393 | unshift(@fallbackMethods, $current_proto); | |
394 | } | |
395 | $connected = 0; | |
396 | my @errs = (); | |
397 | my $proto = undef; | |
398 | while ($proto = shift(@fallbackMethods)) { | |
399 | my $fn = "connect_$proto"; | |
400 | $connected = &$fn(\@errs) unless (!defined &$fn); | |
401 | last if ($connected); | |
402 | } | |
403 | ||
404 | $transmit_ok = 0; | |
405 | if ($connected) { | |
406 | $current_proto = $proto; | |
407 | local($old) = select(SYSLOG); $| = 1; select($old); | |
408 | } else { | |
409 | @fallbackMethods = (); | |
410 | foreach my $err (@errs) { | |
411 | carp $err; | |
412 | } | |
413 | croak "no connection to syslog available"; | |
414 | } | |
415 | } | |
416 | ||
417 | sub connect_tcp { | |
418 | my ($errs) = @_; | |
419 | unless ($host) { | |
420 | require Sys::Hostname; | |
421 | my($host_uniq) = Sys::Hostname::hostname(); | |
422 | ($host) = $host_uniq =~ /([A-Za-z0-9_.-]+)/; # allow FQDN (inc _) | |
423 | } | |
424 | my $tcp = getprotobyname('tcp'); | |
425 | if (!defined $tcp) { | |
426 | push(@{$errs}, "getprotobyname failed for tcp"); | |
427 | return 0; | |
428 | } | |
429 | my $syslog = getservbyname('syslog','tcp'); | |
430 | $syslog = getservbyname('syslogng','tcp') unless (defined $syslog); | |
431 | if (!defined $syslog) { | |
432 | push(@{$errs}, "getservbyname failed for tcp"); | |
433 | return 0; | |
434 | } | |
435 | ||
436 | my $this = sockaddr_in($syslog, INADDR_ANY); | |
437 | my $that = sockaddr_in($syslog, inet_aton($host)); | |
438 | if (!$that) { | |
439 | push(@{$errs}, "can't lookup $host"); | |
440 | return 0; | |
441 | } | |
442 | if (!socket(SYSLOG,AF_INET,SOCK_STREAM,$tcp)) { | |
443 | push(@{$errs}, "tcp socket: $!"); | |
444 | return 0; | |
445 | } | |
446 | setsockopt(SYSLOG, SOL_SOCKET, SO_KEEPALIVE, 1); | |
447 | setsockopt(SYSLOG, IPPROTO_TCP, TCP_NODELAY, 1); | |
448 | if (!CORE::connect(SYSLOG,$that)) { | |
449 | push(@{$errs}, "tcp connect: $!"); | |
450 | return 0; | |
451 | } | |
452 | $syslog_send = \&_syslog_send_socket; | |
453 | return 1; | |
454 | } | |
455 | ||
456 | sub connect_udp { | |
457 | my ($errs) = @_; | |
458 | unless ($host) { | |
459 | require Sys::Hostname; | |
460 | my($host_uniq) = Sys::Hostname::hostname(); | |
461 | ($host) = $host_uniq =~ /([A-Za-z0-9_.-]+)/; # allow FQDN (inc _) | |
462 | } | |
463 | my $udp = getprotobyname('udp'); | |
464 | if (!defined $udp) { | |
465 | push(@{$errs}, "getprotobyname failed for udp"); | |
466 | return 0; | |
467 | } | |
468 | my $syslog = getservbyname('syslog','udp'); | |
469 | if (!defined $syslog) { | |
470 | push(@{$errs}, "getservbyname failed for udp"); | |
471 | return 0; | |
472 | } | |
473 | my $this = sockaddr_in($syslog, INADDR_ANY); | |
474 | my $that = sockaddr_in($syslog, inet_aton($host)); | |
475 | if (!$that) { | |
476 | push(@{$errs}, "can't lookup $host"); | |
477 | return 0; | |
478 | } | |
479 | if (!socket(SYSLOG,AF_INET,SOCK_DGRAM,$udp)) { | |
480 | push(@{$errs}, "udp socket: $!"); | |
481 | return 0; | |
482 | } | |
483 | if (!CORE::connect(SYSLOG,$that)) { | |
484 | push(@{$errs}, "udp connect: $!"); | |
485 | return 0; | |
486 | } | |
487 | # We want to check that the UDP connect worked. However the only | |
488 | # way to do that is to send a message and see if an ICMP is returned | |
489 | _syslog_send_socket(""); | |
490 | if (!connection_ok()) { | |
491 | push(@{$errs}, "udp connect: nobody listening"); | |
492 | return 0; | |
493 | } | |
494 | $syslog_send = \&_syslog_send_socket; | |
495 | return 1; | |
496 | } | |
497 | ||
498 | sub connect_stream { | |
499 | my ($errs) = @_; | |
500 | # might want syslog_path to be variable based on syslog.h (if only | |
501 | # it were in there!) | |
502 | $syslog_path = '/dev/conslog'; | |
503 | if (!-w $syslog_path) { | |
504 | push(@{$errs}, "stream $syslog_path is not writable"); | |
505 | return 0; | |
506 | } | |
507 | if (!open(SYSLOG, ">" . $syslog_path)) { | |
508 | push(@{$errs}, "stream can't open $syslog_path: $!"); | |
509 | return 0; | |
510 | } | |
511 | $syslog_send = \&_syslog_send_stream; | |
512 | return 1; | |
513 | } | |
514 | ||
515 | sub connect_unix { | |
516 | my ($errs) = @_; | |
517 | if (length _PATH_LOG()) { | |
518 | $syslog_path = _PATH_LOG(); | |
519 | } else { | |
520 | push(@{$errs}, "_PATH_LOG not available in syslog.h"); | |
521 | return 0; | |
522 | } | |
523 | my $that = sockaddr_un($syslog_path); | |
524 | if (!$that) { | |
525 | push(@{$errs}, "can't locate $syslog_path"); | |
526 | return 0; | |
527 | } | |
528 | if (!socket(SYSLOG,AF_UNIX,SOCK_STREAM,0)) { | |
529 | push(@{$errs}, "unix stream socket: $!"); | |
530 | return 0; | |
531 | } | |
532 | if (!CORE::connect(SYSLOG,$that)) { | |
533 | if (!socket(SYSLOG,AF_UNIX,SOCK_DGRAM,0)) { | |
534 | push(@{$errs}, "unix dgram socket: $!"); | |
535 | return 0; | |
536 | } | |
537 | if (!CORE::connect(SYSLOG,$that)) { | |
538 | push(@{$errs}, "unix dgram connect: $!"); | |
539 | return 0; | |
540 | } | |
541 | } | |
542 | $syslog_send = \&_syslog_send_socket; | |
543 | return 1; | |
544 | } | |
545 | ||
546 | sub connect_console { | |
547 | my ($errs) = @_; | |
548 | if (!-w '/dev/console') { | |
549 | push(@{$errs}, "console is not writable"); | |
550 | return 0; | |
551 | } | |
552 | $syslog_send = \&_syslog_send_console; | |
553 | return 1; | |
554 | } | |
555 | ||
556 | # to test if the connection is still good, we need to check if any | |
557 | # errors are present on the connection. The errors will not be raised | |
558 | # by a write. Instead, sockets are made readable and the next read | |
559 | # would cause the error to be returned. Unfortunately the syslog | |
560 | # 'protocol' never provides anything for us to read. But with | |
561 | # judicious use of select(), we can see if it would be readable... | |
562 | sub connection_ok { | |
563 | return 1 if (defined $current_proto && $current_proto eq 'console'); | |
564 | my $rin = ''; | |
565 | vec($rin, fileno(SYSLOG), 1) = 1; | |
566 | my $ret = select $rin, undef, $rin, 0; | |
567 | return ($ret ? 0 : 1); | |
568 | } | |
569 | ||
570 | sub disconnect { | |
571 | close SYSLOG; | |
572 | $connected = 0; | |
573 | $syslog_send = undef; | |
574 | } | |
575 | ||
576 | 1; |