Commit | Line | Data |
a0d0e21e |
1 | package Sys::Syslog; |
8168e71f |
2 | use strict; |
89c3c464 |
3 | use warnings::register; |
8168e71f |
4 | use Carp; |
6e4ef777 |
5 | use POSIX qw(strftime setlocale LC_TIME); |
6 | use Socket ':all'; |
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7 | require 5.006; |
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8 | require Exporter; |
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9 | |
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10 | { no strict 'vars'; |
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11 | $VERSION = '0.17'; |
89c3c464 |
12 | @ISA = qw(Exporter); |
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13 | |
89c3c464 |
14 | %EXPORT_TAGS = ( |
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15 | standard => [qw(openlog syslog closelog setlogmask)], |
16 | extended => [qw(setlogsock)], |
17 | macros => [ |
18 | # levels |
19 | qw( |
20 | LOG_ALERT LOG_CRIT LOG_DEBUG LOG_EMERG LOG_ERR |
21 | LOG_INFO LOG_NOTICE LOG_WARNING |
22 | ), |
23 | |
24 | # facilities |
25 | qw( |
26 | LOG_AUTH LOG_AUTHPRIV LOG_CRON LOG_DAEMON LOG_FTP |
27 | LOG_INSTALL LOG_KERN LOG_LAUNCHD LOG_LFMT LOG_LOCAL0 |
28 | LOG_LOCAL1 LOG_LOCAL2 LOG_LOCAL3 LOG_LOCAL4 LOG_LOCAL5 |
29 | LOG_LOCAL6 LOG_LOCAL7 LOG_LPR LOG_MAIL LOG_NETINFO |
30 | LOG_NEWS LOG_RAS LOG_REMOTEAUTH LOG_SYSLOG LOG_USER LOG_UUCP |
31 | ), |
32 | |
33 | # options |
34 | qw( |
35 | LOG_CONS LOG_PID LOG_NDELAY LOG_NOWAIT LOG_ODELAY LOG_PERROR |
36 | ), |
37 | |
38 | # others macros |
39 | qw( |
40 | LOG_FACMASK LOG_NFACILITIES LOG_PRIMASK |
41 | LOG_MASK LOG_UPTO |
42 | ), |
43 | ], |
89c3c464 |
44 | ); |
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45 | |
89c3c464 |
46 | @EXPORT = ( |
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47 | @{$EXPORT_TAGS{standard}}, |
89c3c464 |
48 | ); |
942974c1 |
49 | |
89c3c464 |
50 | @EXPORT_OK = ( |
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51 | @{$EXPORT_TAGS{extended}}, |
52 | @{$EXPORT_TAGS{macros}}, |
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53 | ); |
54 | |
55 | eval { |
56 | require XSLoader; |
57 | XSLoader::load('Sys::Syslog', $VERSION); |
58 | 1 |
59 | } or do { |
60 | require DynaLoader; |
61 | push @ISA, 'DynaLoader'; |
62 | bootstrap Sys::Syslog $VERSION; |
63 | }; |
64 | } |
65 | |
66 | |
67 | # |
68 | # Public variables |
69 | # |
70 | our $host; # host to send syslog messages to |
71 | |
72 | # |
73 | # Global variables |
74 | # |
75 | my $connected = 0; # flag to indicate if we're connected or not |
76 | my $syslog_send; # coderef of the function used to send messages |
77 | my $syslog_path = undef; # syslog path for "stream" and "unix" mechanisms |
78 | my $transmit_ok = 0; # flag to indicate if the last message was transmited |
79 | my $current_proto = undef; # current mechanism used to transmit messages |
80 | my $ident = ''; # identifiant prepended to each message |
81 | my $facility = ''; # current facility |
82 | my $maskpri = LOG_UPTO(&LOG_DEBUG); # current log mask |
83 | |
84 | my %options = ( |
85 | ndelay => 0, |
86 | nofatal => 0, |
87 | nowait => 0, |
88 | pid => 0, |
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89 | ); |
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90 | |
23642f4b |
91 | # it would be nice to try stream/unix first, since that will be |
92 | # most efficient. However streams are dodgy - see _syslog_send_stream |
8edeb3ad |
93 | my @connectMethods = qw(native tcp udp unix stream console); |
dbfdd438 |
94 | if ($^O =~ /^(freebsd|linux)$/) { |
95 | @connectMethods = grep { $_ ne 'udp' } @connectMethods; |
96 | } |
23642f4b |
97 | my @defaultMethods = @connectMethods; |
89c3c464 |
98 | my @fallbackMethods = (); |
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99 | |
89c3c464 |
100 | # coderef for a nicer handling of errors |
101 | my $err_sub = $options{nofatal} ? \&warnings::warnif : \&croak; |
5be1dfc7 |
102 | |
5be1dfc7 |
103 | |
89c3c464 |
104 | sub AUTOLOAD { |
105 | # This AUTOLOAD is used to 'autoload' constants from the constant() |
106 | # XS function. |
107 | no strict 'vars'; |
108 | my $constname; |
109 | ($constname = $AUTOLOAD) =~ s/.*:://; |
110 | croak "Sys::Syslog::constant() not defined" if $constname eq 'constant'; |
111 | my ($error, $val) = constant($constname); |
112 | croak $error if $error; |
113 | no strict 'refs'; |
114 | *$AUTOLOAD = sub { $val }; |
115 | goto &$AUTOLOAD; |
116 | } |
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117 | |
5be1dfc7 |
118 | |
89c3c464 |
119 | sub openlog { |
120 | ($ident, my $logopt, $facility) = @_; |
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121 | |
89c3c464 |
122 | for my $opt (split /\b/, $logopt) { |
123 | $options{$opt} = 1 if exists $options{$opt} |
124 | } |
5be1dfc7 |
125 | |
89c3c464 |
126 | $err_sub = $options{nofatal} ? \&warnings::warnif : \&croak; |
127 | return 1 unless $options{ndelay}; |
128 | connect_log(); |
129 | } |
5be1dfc7 |
130 | |
89c3c464 |
131 | sub closelog { |
132 | $facility = $ident = ''; |
133 | disconnect_log(); |
134 | } |
8168e71f |
135 | |
89c3c464 |
136 | sub setlogmask { |
137 | my $oldmask = $maskpri; |
138 | $maskpri = shift unless $_[0] == 0; |
139 | $oldmask; |
140 | } |
8168e71f |
141 | |
89c3c464 |
142 | sub setlogsock { |
143 | my $setsock = shift; |
144 | $syslog_path = shift; |
145 | disconnect_log() if $connected; |
146 | $transmit_ok = 0; |
147 | @fallbackMethods = (); |
148 | @connectMethods = @defaultMethods; |
942974c1 |
149 | |
89c3c464 |
150 | if (ref $setsock eq 'ARRAY') { |
151 | @connectMethods = @$setsock; |
942974c1 |
152 | |
89c3c464 |
153 | } elsif (lc $setsock eq 'stream') { |
154 | unless (defined $syslog_path) { |
155 | my @try = qw(/dev/log /dev/conslog); |
156 | if (length &_PATH_LOG) { # Undefined _PATH_LOG is "". |
157 | unshift @try, &_PATH_LOG; |
158 | } |
159 | for my $try (@try) { |
160 | if (-w $try) { |
161 | $syslog_path = $try; |
162 | last; |
163 | } |
164 | } |
165 | warnings::warnif "stream passed to setlogsock, but could not find any device" |
166 | unless defined $syslog_path |
167 | } |
168 | unless (-w $syslog_path) { |
169 | warnings::warnif "stream passed to setlogsock, but $syslog_path is not writable"; |
170 | return undef; |
171 | } else { |
172 | @connectMethods = ( 'stream' ); |
173 | } |
942974c1 |
174 | |
89c3c464 |
175 | } elsif (lc $setsock eq 'unix') { |
8edeb3ad |
176 | if (length _PATH_LOG() || (defined $syslog_path && -w $syslog_path)) { |
177 | $syslog_path = _PATH_LOG() unless defined $syslog_path; |
89c3c464 |
178 | @connectMethods = ( 'unix' ); |
179 | } else { |
180 | warnings::warnif 'unix passed to setlogsock, but path not available'; |
181 | return undef; |
182 | } |
8168e71f |
183 | |
89c3c464 |
184 | } elsif (lc $setsock eq 'native') { |
185 | @connectMethods = ( 'native' ); |
8168e71f |
186 | |
89c3c464 |
187 | } elsif (lc $setsock eq 'tcp') { |
188 | if (getservbyname('syslog', 'tcp') || getservbyname('syslogng', 'tcp')) { |
189 | @connectMethods = ( 'tcp' ); |
190 | } else { |
191 | warnings::warnif "tcp passed to setlogsock, but tcp service unavailable"; |
192 | return undef; |
193 | } |
942974c1 |
194 | |
89c3c464 |
195 | } elsif (lc $setsock eq 'udp') { |
196 | if (getservbyname('syslog', 'udp')) { |
197 | @connectMethods = ( 'udp' ); |
198 | } else { |
199 | warnings::warnif "udp passed to setlogsock, but udp service unavailable"; |
200 | return undef; |
201 | } |
942974c1 |
202 | |
89c3c464 |
203 | } elsif (lc $setsock eq 'inet') { |
204 | @connectMethods = ( 'tcp', 'udp' ); |
942974c1 |
205 | |
89c3c464 |
206 | } elsif (lc $setsock eq 'console') { |
207 | @connectMethods = ( 'console' ); |
942974c1 |
208 | |
89c3c464 |
209 | } else { |
210 | croak "Invalid argument passed to setlogsock; must be 'stream', 'unix', 'native', 'tcp', 'udp' or 'inet'" |
211 | } |
942974c1 |
212 | |
89c3c464 |
213 | return 1; |
214 | } |
942974c1 |
215 | |
89c3c464 |
216 | sub syslog { |
217 | my $priority = shift; |
218 | my $mask = shift; |
219 | my ($message, $buf); |
220 | my (@words, $num, $numpri, $numfac, $sum); |
221 | my $failed = undef; |
222 | my $fail_time = undef; |
8edeb3ad |
223 | my $error = $!; |
8168e71f |
224 | |
89c3c464 |
225 | my $facility = $facility; # may need to change temporarily. |
8168e71f |
226 | |
89c3c464 |
227 | croak "syslog: expecting argument \$priority" unless defined $priority; |
228 | croak "syslog: expecting argument \$format" unless defined $mask; |
5be1dfc7 |
229 | |
8edeb3ad |
230 | @words = split(/\W+/, $priority, 2); # Allow "level" or "level|facility". |
89c3c464 |
231 | undef $numpri; |
232 | undef $numfac; |
5be1dfc7 |
233 | |
89c3c464 |
234 | foreach (@words) { |
8edeb3ad |
235 | $num = xlate($_); # Translate word to number. |
89c3c464 |
236 | if ($num < 0) { |
237 | croak "syslog: invalid level/facility: $_" |
238 | } |
239 | elsif ($num <= &LOG_PRIMASK) { |
240 | croak "syslog: too many levels given: $_" if defined $numpri; |
241 | $numpri = $num; |
242 | return 0 unless LOG_MASK($numpri) & $maskpri; |
243 | } |
244 | else { |
245 | croak "syslog: too many facilities given: $_" if defined $numfac; |
246 | $facility = $_; |
247 | $numfac = $num; |
248 | } |
249 | } |
5be1dfc7 |
250 | |
89c3c464 |
251 | croak "syslog: level must be given" unless defined $numpri; |
942974c1 |
252 | |
89c3c464 |
253 | if (not defined $numfac) { # Facility not specified in this call. |
254 | $facility = 'user' unless $facility; |
255 | $numfac = xlate($facility); |
256 | } |
3d256c0f |
257 | |
89c3c464 |
258 | connect_log() unless $connected; |
8168e71f |
259 | |
89c3c464 |
260 | if ($mask =~ /%m/) { |
89c3c464 |
261 | # escape percent signs if sprintf will be called |
8edeb3ad |
262 | $error =~ s/%/%%/g if @_; |
89c3c464 |
263 | # replace %m with $err, if preceded by an even number of percent signs |
8edeb3ad |
264 | $mask =~ s/(?<!%)((?:%%)*)%m/$1$error/g; |
89c3c464 |
265 | } |
5be1dfc7 |
266 | |
89c3c464 |
267 | $mask .= "\n" unless $mask =~ /\n$/; |
268 | $message = @_ ? sprintf($mask, @_) : $mask; |
942974c1 |
269 | |
89c3c464 |
270 | if($current_proto eq 'native') { |
271 | $buf = $message; |
942974c1 |
272 | |
89c3c464 |
273 | } else { |
274 | my $whoami = $ident; |
942974c1 |
275 | |
89c3c464 |
276 | if (!$whoami && $mask =~ /^(\S.*?):\s?(.*)/) { |
277 | $whoami = $1; |
278 | $mask = $2; |
279 | } |
942974c1 |
280 | |
89c3c464 |
281 | unless ($whoami) { |
282 | $whoami = getlogin() || getpwuid($<) || 'syslog'; |
283 | } |
942974c1 |
284 | |
89c3c464 |
285 | $whoami .= "[$$]" if $options{pid}; |
942974c1 |
286 | |
89c3c464 |
287 | $sum = $numpri + $numfac; |
288 | my $oldlocale = setlocale(LC_TIME); |
289 | setlocale(LC_TIME, 'C'); |
290 | my $timestamp = strftime "%b %e %T", localtime; |
291 | setlocale(LC_TIME, $oldlocale); |
292 | $buf = "<$sum>$timestamp $whoami: $message\0"; |
293 | } |
942974c1 |
294 | |
89c3c464 |
295 | # it's possible that we'll get an error from sending |
296 | # (e.g. if method is UDP and there is no UDP listener, |
297 | # then we'll get ECONNREFUSED on the send). So what we |
298 | # want to do at this point is to fallback onto a different |
299 | # connection method. |
300 | while (scalar @fallbackMethods || $syslog_send) { |
301 | if ($failed && (time - $fail_time) > 60) { |
302 | # it's been a while... maybe things have been fixed |
303 | @fallbackMethods = (); |
304 | disconnect_log(); |
305 | $transmit_ok = 0; # make it look like a fresh attempt |
306 | connect_log(); |
307 | } |
942974c1 |
308 | |
89c3c464 |
309 | if ($connected && !connection_ok()) { |
310 | # Something was OK, but has now broken. Remember coz we'll |
311 | # want to go back to what used to be OK. |
312 | $failed = $current_proto unless $failed; |
313 | $fail_time = time; |
314 | disconnect_log(); |
315 | } |
942974c1 |
316 | |
89c3c464 |
317 | connect_log() unless $connected; |
318 | $failed = undef if ($current_proto && $failed && $current_proto eq $failed); |
942974c1 |
319 | |
89c3c464 |
320 | if ($syslog_send) { |
321 | if ($syslog_send->($buf, $numpri)) { |
322 | $transmit_ok++; |
323 | return 1; |
324 | } |
325 | # typically doesn't happen, since errors are rare from write(). |
326 | disconnect_log(); |
327 | } |
328 | } |
329 | # could not send, could not fallback onto a working |
330 | # connection method. Lose. |
331 | return 0; |
332 | } |
942974c1 |
333 | |
89c3c464 |
334 | sub _syslog_send_console { |
335 | my ($buf) = @_; |
336 | chop($buf); # delete the NUL from the end |
337 | # The console print is a method which could block |
338 | # so we do it in a child process and always return success |
339 | # to the caller. |
340 | if (my $pid = fork) { |
942974c1 |
341 | |
89c3c464 |
342 | if ($options{nowait}) { |
343 | return 1; |
344 | } else { |
345 | if (waitpid($pid, 0) >= 0) { |
346 | return ($? >> 8); |
347 | } else { |
348 | # it's possible that the caller has other |
349 | # plans for SIGCHLD, so let's not interfere |
350 | return 1; |
351 | } |
352 | } |
353 | } else { |
354 | if (open(CONS, ">/dev/console")) { |
355 | my $ret = print CONS $buf . "\r"; # XXX: should this be \x0A ? |
356 | exit $ret if defined $pid; |
357 | close CONS; |
358 | } |
359 | exit if defined $pid; |
360 | } |
361 | } |
942974c1 |
362 | |
89c3c464 |
363 | sub _syslog_send_stream { |
364 | my ($buf) = @_; |
365 | # XXX: this only works if the OS stream implementation makes a write |
366 | # look like a putmsg() with simple header. For instance it works on |
367 | # Solaris 8 but not Solaris 7. |
368 | # To be correct, it should use a STREAMS API, but perl doesn't have one. |
369 | return syswrite(SYSLOG, $buf, length($buf)); |
370 | } |
942974c1 |
371 | |
89c3c464 |
372 | sub _syslog_send_socket { |
373 | my ($buf) = @_; |
374 | return syswrite(SYSLOG, $buf, length($buf)); |
375 | #return send(SYSLOG, $buf, 0); |
376 | } |
942974c1 |
377 | |
89c3c464 |
378 | sub _syslog_send_native { |
379 | my ($buf, $numpri) = @_; |
380 | eval { syslog_xs($numpri, $buf) }; |
381 | return $@ ? 0 : 1; |
382 | } |
ce43db9b |
383 | |
5be1dfc7 |
384 | |
89c3c464 |
385 | # xlate() |
386 | # ----- |
387 | # private function to translate names to numeric values |
388 | # |
389 | sub xlate { |
390 | my($name) = @_; |
391 | return $name+0 if $name =~ /^\s*\d+\s*$/; |
392 | $name = uc $name; |
393 | $name = "LOG_$name" unless $name =~ /^LOG_/; |
394 | $name = "Sys::Syslog::$name"; |
395 | # Can't have just eval { &$name } || -1 because some LOG_XXX may be zero. |
396 | my $value = eval { no strict 'refs'; &$name }; |
397 | defined $value ? $value : -1; |
398 | } |
5be1dfc7 |
399 | |
942974c1 |
400 | |
89c3c464 |
401 | # connect_log() |
402 | # ----------- |
403 | # This function acts as a kind of front-end: it tries to connect to |
404 | # a syslog service using the selected methods, trying each one in the |
405 | # selected order. |
406 | # |
407 | sub connect_log { |
408 | @fallbackMethods = @connectMethods unless scalar @fallbackMethods; |
409 | if ($transmit_ok && $current_proto) { |
410 | # Retry what we were on, because it has worked in the past. |
411 | unshift(@fallbackMethods, $current_proto); |
412 | } |
413 | $connected = 0; |
414 | my @errs = (); |
415 | my $proto = undef; |
416 | while ($proto = shift @fallbackMethods) { |
417 | no strict 'refs'; |
418 | my $fn = "connect_$proto"; |
419 | $connected = &$fn(\@errs) if defined &$fn; |
420 | last if $connected; |
421 | } |
3d256c0f |
422 | |
89c3c464 |
423 | $transmit_ok = 0; |
424 | if ($connected) { |
425 | $current_proto = $proto; |
426 | my($old) = select(SYSLOG); $| = 1; select($old); |
427 | } else { |
428 | @fallbackMethods = (); |
429 | $err_sub->(join "\n\t- ", "no connection to syslog available", @errs); |
430 | return undef; |
431 | } |
432 | } |
942974c1 |
433 | |
89c3c464 |
434 | sub connect_tcp { |
435 | my ($errs) = @_; |
4b035b3d |
436 | |
89c3c464 |
437 | my $tcp = getprotobyname('tcp'); |
438 | if (!defined $tcp) { |
439 | push @$errs, "getprotobyname failed for tcp"; |
440 | return 0; |
441 | } |
4b035b3d |
442 | |
443 | my $syslog = getservbyname('syslog', 'tcp'); |
444 | $syslog = getservbyname('syslogng', 'tcp') unless defined $syslog; |
89c3c464 |
445 | if (!defined $syslog) { |
446 | push @$errs, "getservbyname failed for syslog/tcp and syslogng/tcp"; |
447 | return 0; |
448 | } |
942974c1 |
449 | |
4b035b3d |
450 | my $addr; |
89c3c464 |
451 | if (defined $host) { |
4b035b3d |
452 | $addr = inet_aton($host); |
453 | if (!$addr) { |
89c3c464 |
454 | push @$errs, "can't lookup $host"; |
455 | return 0; |
456 | } |
457 | } else { |
4b035b3d |
458 | $addr = INADDR_LOOPBACK; |
89c3c464 |
459 | } |
4b035b3d |
460 | $addr = sockaddr_in($syslog, $addr); |
942974c1 |
461 | |
89c3c464 |
462 | if (!socket(SYSLOG, AF_INET, SOCK_STREAM, $tcp)) { |
463 | push @$errs, "tcp socket: $!"; |
464 | return 0; |
465 | } |
466 | setsockopt(SYSLOG, SOL_SOCKET, SO_KEEPALIVE, 1); |
467 | setsockopt(SYSLOG, &IPPROTO_TCP, &TCP_NODELAY, 1); |
4b035b3d |
468 | if (!connect(SYSLOG, $addr)) { |
89c3c464 |
469 | push @$errs, "tcp connect: $!"; |
470 | return 0; |
471 | } |
4b035b3d |
472 | |
89c3c464 |
473 | $syslog_send = \&_syslog_send_socket; |
4b035b3d |
474 | |
89c3c464 |
475 | return 1; |
476 | } |
942974c1 |
477 | |
89c3c464 |
478 | sub connect_udp { |
479 | my ($errs) = @_; |
4b035b3d |
480 | |
89c3c464 |
481 | my $udp = getprotobyname('udp'); |
482 | if (!defined $udp) { |
483 | push @$errs, "getprotobyname failed for udp"; |
484 | return 0; |
485 | } |
4b035b3d |
486 | |
487 | my $syslog = getservbyname('syslog', 'udp'); |
89c3c464 |
488 | if (!defined $syslog) { |
489 | push @$errs, "getservbyname failed for syslog/udp"; |
490 | return 0; |
491 | } |
4b035b3d |
492 | |
493 | my $addr; |
89c3c464 |
494 | if (defined $host) { |
4b035b3d |
495 | $addr = inet_aton($host); |
496 | if (!$addr) { |
89c3c464 |
497 | push @$errs, "can't lookup $host"; |
498 | return 0; |
499 | } |
500 | } else { |
4b035b3d |
501 | $addr = INADDR_LOOPBACK; |
89c3c464 |
502 | } |
4b035b3d |
503 | $addr = sockaddr_in($syslog, $addr); |
942974c1 |
504 | |
89c3c464 |
505 | if (!socket(SYSLOG, AF_INET, SOCK_DGRAM, $udp)) { |
506 | push @$errs, "udp socket: $!"; |
507 | return 0; |
508 | } |
4b035b3d |
509 | if (!connect(SYSLOG, $addr)) { |
89c3c464 |
510 | push @$errs, "udp connect: $!"; |
511 | return 0; |
512 | } |
4b035b3d |
513 | |
89c3c464 |
514 | # We want to check that the UDP connect worked. However the only |
515 | # way to do that is to send a message and see if an ICMP is returned |
516 | _syslog_send_socket(""); |
517 | if (!connection_ok()) { |
518 | push @$errs, "udp connect: nobody listening"; |
519 | return 0; |
520 | } |
4b035b3d |
521 | |
89c3c464 |
522 | $syslog_send = \&_syslog_send_socket; |
4b035b3d |
523 | |
89c3c464 |
524 | return 1; |
525 | } |
9903e4c8 |
526 | |
89c3c464 |
527 | sub connect_stream { |
528 | my ($errs) = @_; |
529 | # might want syslog_path to be variable based on syslog.h (if only |
530 | # it were in there!) |
8edeb3ad |
531 | $syslog_path = '/dev/conslog' unless defined $syslog_path; |
89c3c464 |
532 | if (!-w $syslog_path) { |
533 | push @$errs, "stream $syslog_path is not writable"; |
534 | return 0; |
535 | } |
536 | if (!open(SYSLOG, ">" . $syslog_path)) { |
537 | push @$errs, "stream can't open $syslog_path: $!"; |
538 | return 0; |
539 | } |
540 | $syslog_send = \&_syslog_send_stream; |
541 | return 1; |
542 | } |
942974c1 |
543 | |
89c3c464 |
544 | sub connect_unix { |
545 | my ($errs) = @_; |
4b035b3d |
546 | |
547 | $syslog_path ||= _PATH_LOG() if length _PATH_LOG(); |
548 | |
549 | if (not defined $syslog_path) { |
550 | push @$errs, "_PATH_LOG not available in syslog.h and no user-supplied socket path"; |
89c3c464 |
551 | return 0; |
552 | } |
4b035b3d |
553 | |
89c3c464 |
554 | if (! -S $syslog_path) { |
555 | push @$errs, "$syslog_path is not a socket"; |
556 | return 0; |
557 | } |
4b035b3d |
558 | |
559 | my $addr = sockaddr_un($syslog_path); |
560 | if (!$addr) { |
89c3c464 |
561 | push @$errs, "can't locate $syslog_path"; |
562 | return 0; |
563 | } |
4b035b3d |
564 | if (!socket(SYSLOG, AF_UNIX, SOCK_STREAM, 0)) { |
89c3c464 |
565 | push @$errs, "unix stream socket: $!"; |
566 | return 0; |
567 | } |
4b035b3d |
568 | if (!connect(SYSLOG, $addr)) { |
569 | if (!socket(SYSLOG, AF_UNIX, SOCK_DGRAM, 0)) { |
89c3c464 |
570 | push @$errs, "unix dgram socket: $!"; |
571 | return 0; |
572 | } |
4b035b3d |
573 | if (!connect(SYSLOG, $addr)) { |
89c3c464 |
574 | push @$errs, "unix dgram connect: $!"; |
575 | return 0; |
576 | } |
577 | } |
4b035b3d |
578 | |
89c3c464 |
579 | $syslog_send = \&_syslog_send_socket; |
4b035b3d |
580 | |
89c3c464 |
581 | return 1; |
582 | } |
942974c1 |
583 | |
89c3c464 |
584 | sub connect_native { |
585 | my ($errs) = @_; |
586 | my $logopt = 0; |
5be1dfc7 |
587 | |
89c3c464 |
588 | # reconstruct the numeric equivalent of the options |
589 | for my $opt (keys %options) { |
590 | $logopt += xlate($opt) if $options{$opt} |
591 | } |
942974c1 |
592 | |
89c3c464 |
593 | eval { openlog_xs($ident, $logopt, xlate($facility)) }; |
594 | if ($@) { |
595 | push @$errs, $@; |
596 | return 0; |
597 | } |
942974c1 |
598 | |
89c3c464 |
599 | $syslog_send = \&_syslog_send_native; |
942974c1 |
600 | |
89c3c464 |
601 | return 1; |
602 | } |
6e4ef777 |
603 | |
89c3c464 |
604 | sub connect_console { |
605 | my ($errs) = @_; |
606 | if (!-w '/dev/console') { |
607 | push @$errs, "console is not writable"; |
608 | return 0; |
609 | } |
610 | $syslog_send = \&_syslog_send_console; |
611 | return 1; |
612 | } |
6e4ef777 |
613 | |
89c3c464 |
614 | # to test if the connection is still good, we need to check if any |
615 | # errors are present on the connection. The errors will not be raised |
616 | # by a write. Instead, sockets are made readable and the next read |
617 | # would cause the error to be returned. Unfortunately the syslog |
618 | # 'protocol' never provides anything for us to read. But with |
619 | # judicious use of select(), we can see if it would be readable... |
620 | sub connection_ok { |
621 | return 1 if defined $current_proto and ( |
622 | $current_proto eq 'native' or $current_proto eq 'console' |
623 | ); |
624 | my $rin = ''; |
625 | vec($rin, fileno(SYSLOG), 1) = 1; |
626 | my $ret = select $rin, undef, $rin, 0; |
627 | return ($ret ? 0 : 1); |
628 | } |
942974c1 |
629 | |
89c3c464 |
630 | sub disconnect_log { |
631 | $connected = 0; |
632 | $syslog_send = undef; |
942974c1 |
633 | |
89c3c464 |
634 | if($current_proto eq 'native') { |
635 | eval { close_xs() }; |
636 | return 1; |
637 | } |
6e4ef777 |
638 | |
89c3c464 |
639 | return close SYSLOG; |
640 | } |
6e4ef777 |
641 | |
89c3c464 |
642 | 1; |
942974c1 |
643 | |
89c3c464 |
644 | __END__ |
5be1dfc7 |
645 | |
89c3c464 |
646 | =head1 NAME |
8168e71f |
647 | |
89c3c464 |
648 | Sys::Syslog - Perl interface to the UNIX syslog(3) calls |
3ffabb8c |
649 | |
89c3c464 |
650 | =head1 VERSION |
3ffabb8c |
651 | |
4b035b3d |
652 | Version 0.17 |
23642f4b |
653 | |
89c3c464 |
654 | =head1 SYNOPSIS |
cb63fe9d |
655 | |
89c3c464 |
656 | use Sys::Syslog; # all except setlogsock(), or: |
657 | use Sys::Syslog qw(:DEFAULT setlogsock); # default set, plus setlogsock() |
658 | use Sys::Syslog qw(:standard :macros); # standard functions, plus macros |
23642f4b |
659 | |
89c3c464 |
660 | setlogsock $sock_type; |
661 | openlog $ident, $logopt, $facility; # don't forget this |
662 | syslog $priority, $format, @args; |
663 | $oldmask = setlogmask $mask_priority; |
664 | closelog; |
cb63fe9d |
665 | |
942974c1 |
666 | |
89c3c464 |
667 | =head1 DESCRIPTION |
5be1dfc7 |
668 | |
89c3c464 |
669 | C<Sys::Syslog> is an interface to the UNIX C<syslog(3)> program. |
670 | Call C<syslog()> with a string priority and a list of C<printf()> args |
671 | just like C<syslog(3)>. |
5be1dfc7 |
672 | |
5be1dfc7 |
673 | |
89c3c464 |
674 | =head1 EXPORTS |
5be1dfc7 |
675 | |
89c3c464 |
676 | C<Sys::Syslog> exports the following C<Exporter> tags: |
5be1dfc7 |
677 | |
89c3c464 |
678 | =over 4 |
679 | |
680 | =item * |
681 | |
682 | C<:standard> exports the standard C<syslog(3)> functions: |
683 | |
684 | openlog closelog setlogmask syslog |
685 | |
686 | =item * |
687 | |
688 | C<:extended> exports the Perl specific functions for C<syslog(3)>: |
689 | |
690 | setlogsock |
691 | |
692 | =item * |
693 | |
694 | C<:macros> exports the symbols corresponding to most of your C<syslog(3)> |
695 | macros and the C<LOG_UPTO()> and C<LOG_MASK()> functions. |
696 | See L<"CONSTANTS"> for the supported constants and their meaning. |
697 | |
698 | =back |
699 | |
700 | By default, C<Sys::Syslog> exports the symbols from the C<:standard> tag. |
701 | |
702 | |
703 | =head1 FUNCTIONS |
704 | |
705 | =over 4 |
706 | |
707 | =item B<openlog($ident, $logopt, $facility)> |
708 | |
709 | Opens the syslog. |
710 | C<$ident> is prepended to every message. C<$logopt> contains zero or |
711 | more of the options detailed below. C<$facility> specifies the part |
712 | of the system to report about, for example C<LOG_USER> or C<LOG_LOCAL0>: |
713 | see L<"Facilities"> for a list of well-known facilities, and your |
714 | C<syslog(3)> documentation for the facilities available in your system. |
715 | Check L<"SEE ALSO"> for useful links. Facility can be given as a string |
716 | or a numeric macro. |
717 | |
718 | This function will croak if it can't connect to the syslog daemon. |
719 | |
720 | Note that C<openlog()> now takes three arguments, just like C<openlog(3)>. |
721 | |
722 | B<You should use C<openlog()> before calling C<syslog()>.> |
723 | |
724 | B<Options> |
725 | |
726 | =over 4 |
727 | |
728 | =item * |
729 | |
730 | C<cons> - This option is ignored, since the failover mechanism will drop |
731 | down to the console automatically if all other media fail. |
732 | |
733 | =item * |
734 | |
735 | C<ndelay> - Open the connection immediately (normally, the connection is |
736 | opened when the first message is logged). |
737 | |
738 | =item * |
739 | |
740 | C<nofatal> - When set to true, C<openlog()> and C<syslog()> will only |
741 | emit warnings instead of dying if the connection to the syslog can't |
742 | be established. |
743 | |
744 | =item * |
745 | |
746 | C<nowait> - Don't wait for child processes that may have been created |
747 | while logging the message. (The GNU C library does not create a child |
748 | process, so this option has no effect on Linux.) |
749 | |
750 | =item * |
751 | |
752 | C<pid> - Include PID with each message. |
753 | |
754 | =back |
755 | |
756 | B<Examples> |
757 | |
758 | Open the syslog with options C<ndelay> and C<pid>, and with facility C<LOCAL0>: |
759 | |
760 | openlog($name, "ndelay,pid", "local0"); |
761 | |
762 | Same thing, but this time using the macro corresponding to C<LOCAL0>: |
763 | |
764 | openlog($name, "ndelay,pid", LOG_LOCAL0); |
765 | |
766 | |
767 | =item B<syslog($priority, $message)> |
768 | |
769 | =item B<syslog($priority, $format, @args)> |
770 | |
771 | If C<$priority> permits, logs C<$message> or C<sprintf($format, @args)> |
772 | with the addition that C<%m> in $message or C<$format> is replaced with |
773 | C<"$!"> (the latest error message). |
774 | |
775 | C<$priority> can specify a level, or a level and a facility. Levels and |
776 | facilities can be given as strings or as macros. |
777 | |
778 | If you didn't use C<openlog()> before using C<syslog()>, C<syslog()> will |
779 | try to guess the C<$ident> by extracting the shortest prefix of |
780 | C<$format> that ends in a C<":">. |
781 | |
782 | B<Examples> |
783 | |
784 | syslog("info", $message); # informational level |
785 | syslog(LOG_INFO, $message); # informational level |
786 | |
787 | syslog("info|local0", $message); # information level, Local0 facility |
788 | syslog(LOG_INFO|LOG_LOCAL0, $message); # information level, Local0 facility |
789 | |
790 | =over 4 |
791 | |
792 | =item B<Note> |
793 | |
794 | C<Sys::Syslog> version v0.07 and older passed the C<$message> as the |
795 | formatting string to C<sprintf()> even when no formatting arguments |
796 | were provided. If the code calling C<syslog()> might execute with |
797 | older versions of this module, make sure to call the function as |
798 | C<syslog($priority, "%s", $message)> instead of C<syslog($priority, |
799 | $message)>. This protects against hostile formatting sequences that |
800 | might show up if $message contains tainted data. |
801 | |
802 | =back |
803 | |
804 | |
805 | =item B<setlogmask($mask_priority)> |
806 | |
807 | Sets the log mask for the current process to C<$mask_priority> and |
808 | returns the old mask. If the mask argument is 0, the current log mask |
809 | is not modified. See L<"Levels"> for the list of available levels. |
810 | You can use the C<LOG_UPTO()> function to allow all levels up to a |
811 | given priority (but it only accept the numeric macros as arguments). |
812 | |
813 | B<Examples> |
814 | |
815 | Only log errors: |
816 | |
817 | setlogmask( LOG_MASK(LOG_ERR) ); |
818 | |
819 | Log everything except informational messages: |
820 | |
821 | setlogmask( ~(LOG_MASK(LOG_INFO)) ); |
822 | |
823 | Log critical messages, errors and warnings: |
824 | |
825 | setlogmask( LOG_MASK(LOG_CRIT) | LOG_MASK(LOG_ERR) | LOG_MASK(LOG_WARNING) ); |
826 | |
827 | Log all messages up to debug: |
828 | |
829 | setlogmask( LOG_UPTO(LOG_DEBUG) ); |
830 | |
831 | |
832 | =item B<setlogsock($sock_type)> |
833 | |
834 | =item B<setlogsock($sock_type, $stream_location)> (added in 5.004_02) |
835 | |
836 | Sets the socket type to be used for the next call to |
837 | C<openlog()> or C<syslog()> and returns true on success, |
4b035b3d |
838 | C<undef> on failure. The available mechanisms are: |
839 | |
840 | =over |
841 | |
842 | =item * |
843 | |
844 | C<"native"> - use the native C functions from your C<syslog(3)> library. |
845 | |
846 | =item * |
847 | |
848 | C<"tcp"> - connect to a TCP socket, on the C<syslog/tcp> or C<syslogng/tcp> |
849 | service. |
850 | |
851 | =item * |
852 | |
853 | C<"udp"> - connect to a UDP socket, on the C<syslog/udp> service. |
854 | |
855 | =item * |
856 | |
857 | C<"inet"> - connect to an INET socket, either TCP or UDP, tried in that order. |
858 | |
859 | =item * |
860 | |
861 | C<"unix"> - connect to a UNIX domain socket (in some systems a character |
862 | special device). The name of that socket is the second parameter or, if |
863 | you omit the second parameter, the value returned by the C<_PATH_LOG> macro |
864 | (if your system defines it), or F</dev/log> or F</dev/conslog>, whatever is |
865 | writable. |
866 | |
867 | =item * |
868 | |
869 | C<"stream"> - connect to the stream indicated by the pathname provided as |
870 | the optional second parameter, or, if omitted, to F</dev/conslog>. |
871 | For example Solaris and IRIX system may prefer C<"stream"> instead of C<"unix">. |
872 | |
873 | =item * |
874 | |
875 | C<"console"> - send messages directly to the console, as for the C<"cons"> |
876 | option of C<openlog()>. |
877 | |
878 | =back |
89c3c464 |
879 | |
880 | A reference to an array can also be passed as the first parameter. |
881 | When this calling method is used, the array should contain a list of |
4b035b3d |
882 | mechanisms which are attempted in order. |
89c3c464 |
883 | |
4b035b3d |
884 | The default is to try C<native>, C<tcp>, C<udp>, C<unix>, C<stream>, C<console>. |
89c3c464 |
885 | |
886 | Giving an invalid value for C<$sock_type> will croak. |
887 | |
4b035b3d |
888 | B<Examples> |
889 | |
890 | Select the UDP socket mechanism: |
891 | |
892 | setlogsock("udp"); |
893 | |
894 | Select the native, UDP socket then UNIX domain socket mechanisms: |
895 | |
896 | setlogsock(["native", "udp", "unix"]); |
897 | |
89c3c464 |
898 | |
899 | =item B<closelog()> |
900 | |
4b035b3d |
901 | Closes the log file and returns true on success. |
89c3c464 |
902 | |
903 | =back |
904 | |
905 | |
906 | =head1 EXAMPLES |
907 | |
908 | openlog($program, 'cons,pid', 'user'); |
909 | syslog('info', '%s', 'this is another test'); |
910 | syslog('mail|warning', 'this is a better test: %d', time); |
911 | closelog(); |
5be1dfc7 |
912 | |
913 | syslog('debug', 'this is the last test'); |
cb63fe9d |
914 | |
915 | setlogsock('unix'); |
5be1dfc7 |
916 | openlog("$program $$", 'ndelay', 'user'); |
917 | syslog('notice', 'fooprogram: this is really done'); |
918 | |
cb63fe9d |
919 | setlogsock('inet'); |
5be1dfc7 |
920 | $! = 55; |
6e4ef777 |
921 | syslog('info', 'problem was %m'); # %m == $! in syslog(3) |
922 | |
923 | Log to UDP port on C<$remotehost> instead of logging locally: |
5be1dfc7 |
924 | |
476b65d9 |
925 | setlogsock('udp'); |
926 | $Sys::Syslog::host = $remotehost; |
927 | openlog($program, 'ndelay', 'user'); |
928 | syslog('info', 'something happened over here'); |
929 | |
8168e71f |
930 | |
931 | =head1 CONSTANTS |
932 | |
933 | =head2 Facilities |
934 | |
935 | =over 4 |
936 | |
937 | =item * |
938 | |
939 | C<LOG_AUTH> - security/authorization messages |
940 | |
941 | =item * |
942 | |
943 | C<LOG_AUTHPRIV> - security/authorization messages (private) |
944 | |
945 | =item * |
946 | |
4b035b3d |
947 | C<LOG_CRON> - clock daemons (B<cron> and B<at>) |
8168e71f |
948 | |
949 | =item * |
950 | |
951 | C<LOG_DAEMON> - system daemons without separate facility value |
952 | |
953 | =item * |
954 | |
4b035b3d |
955 | C<LOG_FTP> - FTP daemon |
8168e71f |
956 | |
957 | =item * |
958 | |
959 | C<LOG_KERN> - kernel messages |
960 | |
961 | =item * |
962 | |
4b035b3d |
963 | C<LOG_INSTALL> - installer subsystem |
964 | |
965 | =item * |
966 | |
967 | C<LOG_LAUNCHD> - launchd - general bootstrap daemon (Mac OS X) |
968 | |
969 | =item * |
970 | |
8168e71f |
971 | C<LOG_LOCAL0> through C<LOG_LOCAL7> - reserved for local use |
972 | |
973 | =item * |
974 | |
975 | C<LOG_LPR> - line printer subsystem |
976 | |
977 | =item * |
978 | |
979 | C<LOG_MAIL> - mail subsystem |
980 | |
981 | =item * |
982 | |
4b035b3d |
983 | C<LOG_NETINFO> - NetInfo subsystem (Mac OS X) |
984 | |
985 | =item * |
986 | |
8168e71f |
987 | C<LOG_NEWS> - USENET news subsystem |
988 | |
989 | =item * |
990 | |
4b035b3d |
991 | C<LOG_RAS> - Remote Access Service (VPN / PPP) (Mac OS X) |
992 | |
993 | =item * |
994 | |
995 | C<LOG_REMOTEAUTH> - remote authentication/authorization (Mac OS X) |
996 | |
997 | =item * |
998 | |
8168e71f |
999 | C<LOG_SYSLOG> - messages generated internally by B<syslogd> |
1000 | |
1001 | =item * |
1002 | |
1003 | C<LOG_USER> (default) - generic user-level messages |
1004 | |
1005 | =item * |
1006 | |
1007 | C<LOG_UUCP> - UUCP subsystem |
1008 | |
1009 | =back |
1010 | |
1011 | |
1012 | =head2 Levels |
1013 | |
1014 | =over 4 |
1015 | |
1016 | =item * |
1017 | |
1018 | C<LOG_EMERG> - system is unusable |
1019 | |
1020 | =item * |
1021 | |
1022 | C<LOG_ALERT> - action must be taken immediately |
1023 | |
1024 | =item * |
1025 | |
1026 | C<LOG_CRIT> - critical conditions |
1027 | |
1028 | =item * |
1029 | |
942974c1 |
1030 | C<LOG_ERR> - error conditions |
8168e71f |
1031 | |
1032 | =item * |
1033 | |
1034 | C<LOG_WARNING> - warning conditions |
1035 | |
1036 | =item * |
1037 | |
1038 | C<LOG_NOTICE> - normal, but significant, condition |
1039 | |
1040 | =item * |
1041 | |
1042 | C<LOG_INFO> - informational message |
1043 | |
1044 | =item * |
1045 | |
1046 | C<LOG_DEBUG> - debug-level message |
1047 | |
1048 | =back |
1049 | |
1050 | |
1051 | =head1 DIAGNOSTICS |
1052 | |
1053 | =over 4 |
1054 | |
1055 | =item Invalid argument passed to setlogsock |
1056 | |
1057 | B<(F)> You gave C<setlogsock()> an invalid value for C<$sock_type>. |
1058 | |
1059 | =item no connection to syslog available |
1060 | |
1061 | B<(F)> C<syslog()> failed to connect to the specified socket. |
1062 | |
1063 | =item stream passed to setlogsock, but %s is not writable |
1064 | |
942974c1 |
1065 | B<(W)> You asked C<setlogsock()> to use a stream socket, but the given |
8168e71f |
1066 | path is not writable. |
1067 | |
1068 | =item stream passed to setlogsock, but could not find any device |
1069 | |
942974c1 |
1070 | B<(W)> You asked C<setlogsock()> to use a stream socket, but didn't |
8168e71f |
1071 | provide a path, and C<Sys::Syslog> was unable to find an appropriate one. |
1072 | |
1073 | =item tcp passed to setlogsock, but tcp service unavailable |
1074 | |
942974c1 |
1075 | B<(W)> You asked C<setlogsock()> to use a TCP socket, but the service |
8168e71f |
1076 | is not available on the system. |
1077 | |
1078 | =item syslog: expecting argument %s |
1079 | |
1080 | B<(F)> You forgot to give C<syslog()> the indicated argument. |
1081 | |
1082 | =item syslog: invalid level/facility: %s |
1083 | |
6e4ef777 |
1084 | B<(F)> You specified an invalid level or facility. |
8168e71f |
1085 | |
1086 | =item syslog: too many levels given: %s |
1087 | |
1088 | B<(F)> You specified too many levels. |
1089 | |
1090 | =item syslog: too many facilities given: %s |
1091 | |
1092 | B<(F)> You specified too many facilities. |
1093 | |
1094 | =item syslog: level must be given |
1095 | |
1096 | B<(F)> You forgot to specify a level. |
1097 | |
1098 | =item udp passed to setlogsock, but udp service unavailable |
1099 | |
942974c1 |
1100 | B<(W)> You asked C<setlogsock()> to use a UDP socket, but the service |
8168e71f |
1101 | is not available on the system. |
1102 | |
1103 | =item unix passed to setlogsock, but path not available |
1104 | |
942974c1 |
1105 | B<(W)> You asked C<setlogsock()> to use a UNIX socket, but C<Sys::Syslog> |
8168e71f |
1106 | was unable to find an appropriate an appropriate device. |
1107 | |
1108 | =back |
1109 | |
1110 | |
5be1dfc7 |
1111 | =head1 SEE ALSO |
1112 | |
1113 | L<syslog(3)> |
1114 | |
6e4ef777 |
1115 | SUSv3 issue 6, IEEE Std 1003.1, 2004 edition, |
1116 | L<http://www.opengroup.org/onlinepubs/000095399/basedefs/syslog.h.html> |
1117 | |
1118 | GNU C Library documentation on syslog, |
1119 | L<http://www.gnu.org/software/libc/manual/html_node/Syslog.html> |
1120 | |
1121 | Solaris 10 documentation on syslog, |
1122 | L<http://docs.sun.com/app/docs/doc/816-5168/6mbb3hruo?a=view> |
1123 | |
1124 | AIX 5L 5.3 documentation on syslog, |
1125 | L<http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp?topic=/com.ibm.aix.doc/libs/basetrf2/syslog.htm> |
1126 | |
1127 | HP-UX 11i documentation on syslog, |
1128 | L<http://docs.hp.com/en/B9106-90010/syslog.3C.html> |
1129 | |
1130 | Tru64 5.1 documentation on syslog, |
1131 | L<http://h30097.www3.hp.com/docs/base_doc/DOCUMENTATION/V51_HTML/MAN/MAN3/0193____.HTM> |
1132 | |
1133 | Stratus VOS 15.1, |
1134 | L<http://stratadoc.stratus.com/vos/15.1.1/r502-01/wwhelp/wwhimpl/js/html/wwhelp.htm?context=r502-01&file=ch5r502-01bi.html> |
1135 | |
1136 | I<RFC 3164 - The BSD syslog Protocol>, L<http://www.faqs.org/rfcs/rfc3164.html> |
1137 | -- Please note that this is an informational RFC, and therefore does not |
1138 | specify a standard of any kind. |
1139 | |
1140 | I<RFC 3195 - Reliable Delivery for syslog>, L<http://www.faqs.org/rfcs/rfc3195.html> |
1141 | |
04f98b29 |
1142 | I<Syslogging with Perl>, L<http://lexington.pm.org/meetings/022001.html> |
1143 | |
8168e71f |
1144 | |
6e4ef777 |
1145 | =head1 AUTHORS |
5be1dfc7 |
1146 | |
150b260b |
1147 | Tom Christiansen E<lt>F<tchrist@perl.com>E<gt> and Larry Wall |
1148 | E<lt>F<larry@wall.org>E<gt>. |
1149 | |
1150 | UNIX domain sockets added by Sean Robinson |
23642f4b |
1151 | E<lt>F<robinson_s@sc.maricopa.edu>E<gt> with support from Tim Bunce |
8168e71f |
1152 | E<lt>F<Tim.Bunce@ig.co.uk>E<gt> and the C<perl5-porters> mailing list. |
150b260b |
1153 | |
1154 | Dependency on F<syslog.ph> replaced with XS code by Tom Hughes |
1155 | E<lt>F<tom@compton.nu>E<gt>. |
5be1dfc7 |
1156 | |
8168e71f |
1157 | Code for C<constant()>s regenerated by Nicholas Clark E<lt>F<nick@ccl4.org>E<gt>. |
23642f4b |
1158 | |
1159 | Failover to different communication modes by Nick Williams |
1160 | E<lt>F<Nick.Williams@morganstanley.com>E<gt>. |
b903fcff |
1161 | |
89c3c464 |
1162 | XS code for using native C functions borrowed from C<L<Unix::Syslog>>, |
1163 | written by Marcus Harnisch E<lt>F<marcus.harnisch@gmx.net>E<gt>. |
1164 | |
8168e71f |
1165 | Extracted from core distribution for publishing on the CPAN by |
1166 | SE<eacute>bastien Aperghis-Tramoni E<lt>sebastien@aperghis.netE<gt>. |
1167 | |
1168 | |
1169 | =head1 BUGS |
1170 | |
1171 | Please report any bugs or feature requests to |
1172 | C<bug-sys-syslog at rt.cpan.org>, or through the web interface at |
1173 | L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Sys-Syslog>. |
1174 | I will be notified, and then you'll automatically be notified of progress on |
1175 | your bug as I make changes. |
1176 | |
1177 | |
1178 | =head1 SUPPORT |
1179 | |
1180 | You can find documentation for this module with the perldoc command. |
1181 | |
1182 | perldoc Sys::Syslog |
1183 | |
1184 | You can also look for information at: |
1185 | |
1186 | =over 4 |
1187 | |
1188 | =item * AnnoCPAN: Annotated CPAN documentation |
1189 | |
1190 | L<http://annocpan.org/dist/Sys-Syslog> |
1191 | |
1192 | =item * CPAN Ratings |
1193 | |
1194 | L<http://cpanratings.perl.org/d/Sys-Syslog> |
1195 | |
1196 | =item * RT: CPAN's request tracker |
1197 | |
1198 | L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Sys-Syslog> |
1199 | |
1200 | =item * Search CPAN |
1201 | |
6e4ef777 |
1202 | L<http://search.cpan.org/dist/Sys-Syslog/> |
1203 | |
1204 | =item * Kobes' CPAN Search |
1205 | |
1206 | L<http://cpan.uwinnipeg.ca/dist/Sys-Syslog> |
1207 | |
1208 | =item * Perl Documentation |
1209 | |
1210 | L<http://perldoc.perl.org/Sys/Syslog.html> |
8168e71f |
1211 | |
1212 | =back |
1213 | |
1214 | |
1215 | =head1 LICENSE |
1216 | |
1217 | This program is free software; you can redistribute it and/or modify it |
1218 | under the same terms as Perl itself. |
1219 | |
5be1dfc7 |
1220 | =cut |