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1 | # Net::Cmd.pm $Id: //depot/libnet/Net/Cmd.pm#28 $ |
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2 | # |
3 | # Copyright (c) 1995-1997 Graham Barr <gbarr@pobox.com>. All rights reserved. |
4 | # This program is free software; you can redistribute it and/or |
5 | # modify it under the same terms as Perl itself. |
6 | |
7 | package Net::Cmd; |
8 | |
9 | require 5.001; |
10 | require Exporter; |
11 | |
12 | use strict; |
13 | use vars qw(@ISA @EXPORT $VERSION); |
14 | use Carp; |
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15 | use Symbol 'gensym'; |
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16 | |
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17 | BEGIN { |
18 | if ($^O eq 'os390') { |
19 | require Convert::EBCDIC; |
20 | # Convert::EBCDIC->import; |
21 | } |
22 | } |
23 | |
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24 | $VERSION = "2.21"; |
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25 | @ISA = qw(Exporter); |
26 | @EXPORT = qw(CMD_INFO CMD_OK CMD_MORE CMD_REJECT CMD_ERROR CMD_PENDING); |
27 | |
28 | sub CMD_INFO { 1 } |
29 | sub CMD_OK { 2 } |
30 | sub CMD_MORE { 3 } |
31 | sub CMD_REJECT { 4 } |
32 | sub CMD_ERROR { 5 } |
33 | sub CMD_PENDING { 0 } |
34 | |
35 | my %debug = (); |
36 | |
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37 | my $tr = $^O eq 'os390' ? Convert::EBCDIC->new() : undef; |
38 | |
39 | sub toebcdic |
40 | { |
41 | my $cmd = shift; |
42 | |
43 | unless (exists ${*$cmd}{'net_cmd_asciipeer'}) |
44 | { |
45 | my $string = $_[0]; |
46 | my $ebcdicstr = $tr->toebcdic($string); |
47 | ${*$cmd}{'net_cmd_asciipeer'} = $string !~ /^\d+/ && $ebcdicstr =~ /^\d+/; |
48 | } |
49 | |
50 | ${*$cmd}{'net_cmd_asciipeer'} |
51 | ? $tr->toebcdic($_[0]) |
52 | : $_[0]; |
53 | } |
54 | |
55 | sub toascii |
56 | { |
57 | my $cmd = shift; |
58 | ${*$cmd}{'net_cmd_asciipeer'} |
59 | ? $tr->toascii($_[0]) |
60 | : $_[0]; |
61 | } |
62 | |
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63 | sub _print_isa |
64 | { |
65 | no strict qw(refs); |
66 | |
67 | my $pkg = shift; |
68 | my $cmd = $pkg; |
69 | |
70 | $debug{$pkg} ||= 0; |
71 | |
72 | my %done = (); |
73 | my @do = ($pkg); |
74 | my %spc = ( $pkg , ""); |
75 | |
76 | print STDERR "\n"; |
77 | while ($pkg = shift @do) |
78 | { |
79 | next if defined $done{$pkg}; |
80 | |
81 | $done{$pkg} = 1; |
82 | |
83 | my $v = defined ${"${pkg}::VERSION"} |
84 | ? "(" . ${"${pkg}::VERSION"} . ")" |
85 | : ""; |
86 | |
87 | my $spc = $spc{$pkg}; |
88 | print STDERR "$cmd: ${spc}${pkg}${v}\n"; |
89 | |
90 | if(@{"${pkg}::ISA"}) |
91 | { |
92 | @spc{@{"${pkg}::ISA"}} = (" " . $spc{$pkg}) x @{"${pkg}::ISA"}; |
93 | unshift(@do, @{"${pkg}::ISA"}); |
94 | } |
95 | } |
96 | |
97 | print STDERR "\n"; |
98 | } |
99 | |
100 | sub debug |
101 | { |
102 | @_ == 1 or @_ == 2 or croak 'usage: $obj->debug([LEVEL])'; |
103 | |
104 | my($cmd,$level) = @_; |
105 | my $pkg = ref($cmd) || $cmd; |
106 | my $oldval = 0; |
107 | |
108 | if(ref($cmd)) |
109 | { |
110 | $oldval = ${*$cmd}{'net_cmd_debug'} || 0; |
111 | } |
112 | else |
113 | { |
114 | $oldval = $debug{$pkg} || 0; |
115 | } |
116 | |
117 | return $oldval |
118 | unless @_ == 2; |
119 | |
120 | $level = $debug{$pkg} || 0 |
121 | unless defined $level; |
122 | |
123 | _print_isa($pkg) |
124 | if($level && !exists $debug{$pkg}); |
125 | |
126 | if(ref($cmd)) |
127 | { |
128 | ${*$cmd}{'net_cmd_debug'} = $level; |
129 | } |
130 | else |
131 | { |
132 | $debug{$pkg} = $level; |
133 | } |
134 | |
135 | $oldval; |
136 | } |
137 | |
138 | sub message |
139 | { |
140 | @_ == 1 or croak 'usage: $obj->message()'; |
141 | |
142 | my $cmd = shift; |
143 | |
144 | wantarray ? @{${*$cmd}{'net_cmd_resp'}} |
145 | : join("", @{${*$cmd}{'net_cmd_resp'}}); |
146 | } |
147 | |
148 | sub debug_text { $_[2] } |
149 | |
150 | sub debug_print |
151 | { |
152 | my($cmd,$out,$text) = @_; |
153 | print STDERR $cmd,($out ? '>>> ' : '<<< '), $cmd->debug_text($out,$text); |
154 | } |
155 | |
156 | sub code |
157 | { |
158 | @_ == 1 or croak 'usage: $obj->code()'; |
159 | |
160 | my $cmd = shift; |
161 | |
162 | ${*$cmd}{'net_cmd_code'} = "000" |
163 | unless exists ${*$cmd}{'net_cmd_code'}; |
164 | |
165 | ${*$cmd}{'net_cmd_code'}; |
166 | } |
167 | |
168 | sub status |
169 | { |
170 | @_ == 1 or croak 'usage: $obj->status()'; |
171 | |
172 | my $cmd = shift; |
173 | |
174 | substr(${*$cmd}{'net_cmd_code'},0,1); |
175 | } |
176 | |
177 | sub set_status |
178 | { |
179 | @_ == 3 or croak 'usage: $obj->set_status(CODE, MESSAGE)'; |
180 | |
181 | my $cmd = shift; |
182 | my($code,$resp) = @_; |
183 | |
184 | $resp = [ $resp ] |
185 | unless ref($resp); |
186 | |
187 | (${*$cmd}{'net_cmd_code'},${*$cmd}{'net_cmd_resp'}) = ($code, $resp); |
188 | |
189 | 1; |
190 | } |
191 | |
192 | sub command |
193 | { |
194 | my $cmd = shift; |
195 | |
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196 | unless (defined fileno($cmd)) |
197 | { |
198 | $cmd->set_status("599", "Connection closed"); |
199 | return $cmd; |
200 | } |
201 | |
202 | |
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203 | $cmd->dataend() |
204 | if(exists ${*$cmd}{'net_cmd_lastch'}); |
205 | |
206 | if (scalar(@_)) |
207 | { |
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208 | local $SIG{PIPE} = 'IGNORE' unless $^O eq 'MacOS'; |
209 | |
210 | my $str = join(" ", map { /\n/ ? do { my $n = $_; $n =~ tr/\n/ /; $n } : $_; } @_); |
211 | $str = $cmd->toascii($str) if $tr; |
212 | $str .= "\015\012"; |
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213 | |
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214 | my $len = length $str; |
215 | my $swlen; |
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216 | |
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217 | $cmd->close |
218 | unless (defined($swlen = syswrite($cmd,$str,$len)) && $swlen == $len); |
219 | |
220 | $cmd->debug_print(1,$str) |
221 | if($cmd->debug); |
222 | |
223 | ${*$cmd}{'net_cmd_resp'} = []; # the response |
224 | ${*$cmd}{'net_cmd_code'} = "000"; # Made this one up :-) |
225 | } |
226 | |
227 | $cmd; |
228 | } |
229 | |
230 | sub ok |
231 | { |
232 | @_ == 1 or croak 'usage: $obj->ok()'; |
233 | |
234 | my $code = $_[0]->code; |
235 | 0 < $code && $code < 400; |
236 | } |
237 | |
238 | sub unsupported |
239 | { |
240 | my $cmd = shift; |
241 | |
242 | ${*$cmd}{'net_cmd_resp'} = [ 'Unsupported command' ]; |
243 | ${*$cmd}{'net_cmd_code'} = 580; |
244 | 0; |
245 | } |
246 | |
247 | sub getline |
248 | { |
249 | my $cmd = shift; |
250 | |
251 | ${*$cmd}{'net_cmd_lines'} ||= []; |
252 | |
253 | return shift @{${*$cmd}{'net_cmd_lines'}} |
254 | if scalar(@{${*$cmd}{'net_cmd_lines'}}); |
255 | |
256 | my $partial = defined(${*$cmd}{'net_cmd_partial'}) |
257 | ? ${*$cmd}{'net_cmd_partial'} : ""; |
258 | my $fd = fileno($cmd); |
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259 | |
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260 | return undef |
261 | unless defined $fd; |
262 | |
263 | my $rin = ""; |
264 | vec($rin,$fd,1) = 1; |
265 | |
266 | my $buf; |
267 | |
268 | until(scalar(@{${*$cmd}{'net_cmd_lines'}})) |
269 | { |
270 | my $timeout = $cmd->timeout || undef; |
271 | my $rout; |
272 | if (select($rout=$rin, undef, undef, $timeout)) |
273 | { |
274 | unless (sysread($cmd, $buf="", 1024)) |
275 | { |
276 | carp(ref($cmd) . ": Unexpected EOF on command channel") |
277 | if $cmd->debug; |
278 | $cmd->close; |
279 | return undef; |
280 | } |
281 | |
282 | substr($buf,0,0) = $partial; ## prepend from last sysread |
283 | |
284 | my @buf = split(/\015?\012/, $buf, -1); ## break into lines |
285 | |
286 | $partial = pop @buf; |
287 | |
288 | push(@{${*$cmd}{'net_cmd_lines'}}, map { "$_\n" } @buf); |
289 | |
290 | } |
291 | else |
292 | { |
293 | carp("$cmd: Timeout") if($cmd->debug); |
294 | return undef; |
295 | } |
296 | } |
297 | |
298 | ${*$cmd}{'net_cmd_partial'} = $partial; |
299 | |
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300 | if ($tr) |
301 | { |
302 | foreach my $ln (@{${*$cmd}{'net_cmd_lines'}}) |
303 | { |
304 | $ln = $cmd->toebcdic($ln); |
305 | } |
306 | } |
307 | |
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308 | shift @{${*$cmd}{'net_cmd_lines'}}; |
309 | } |
310 | |
311 | sub ungetline |
312 | { |
313 | my($cmd,$str) = @_; |
314 | |
315 | ${*$cmd}{'net_cmd_lines'} ||= []; |
316 | unshift(@{${*$cmd}{'net_cmd_lines'}}, $str); |
317 | } |
318 | |
319 | sub parse_response |
320 | { |
321 | return () |
322 | unless $_[1] =~ s/^(\d\d\d)(.?)//o; |
323 | ($1, $2 eq "-"); |
324 | } |
325 | |
326 | sub response |
327 | { |
328 | my $cmd = shift; |
329 | my($code,$more) = (undef) x 2; |
330 | |
331 | ${*$cmd}{'net_cmd_resp'} ||= []; |
332 | |
333 | while(1) |
334 | { |
335 | my $str = $cmd->getline(); |
336 | |
337 | return CMD_ERROR |
338 | unless defined($str); |
339 | |
340 | $cmd->debug_print(0,$str) |
341 | if ($cmd->debug); |
342 | |
343 | ($code,$more) = $cmd->parse_response($str); |
344 | unless(defined $code) |
345 | { |
346 | $cmd->ungetline($str); |
347 | last; |
348 | } |
349 | |
350 | ${*$cmd}{'net_cmd_code'} = $code; |
351 | |
352 | push(@{${*$cmd}{'net_cmd_resp'}},$str); |
353 | |
354 | last unless($more); |
355 | } |
356 | |
357 | substr($code,0,1); |
358 | } |
359 | |
360 | sub read_until_dot |
361 | { |
362 | my $cmd = shift; |
363 | my $fh = shift; |
364 | my $arr = []; |
365 | |
366 | while(1) |
367 | { |
368 | my $str = $cmd->getline() or return undef; |
369 | |
370 | $cmd->debug_print(0,$str) |
371 | if ($cmd->debug & 4); |
372 | |
373 | last if($str =~ /^\.\r?\n/o); |
374 | |
375 | $str =~ s/^\.\././o; |
376 | |
377 | if (defined $fh) |
378 | { |
379 | print $fh $str; |
380 | } |
381 | else |
382 | { |
383 | push(@$arr,$str); |
384 | } |
385 | } |
386 | |
387 | $arr; |
388 | } |
389 | |
390 | sub datasend |
391 | { |
392 | my $cmd = shift; |
393 | my $arr = @_ == 1 && ref($_[0]) ? $_[0] : \@_; |
394 | my $line = join("" ,@$arr); |
395 | |
396 | return 0 unless defined(fileno($cmd)); |
397 | |
398 | return 1 |
399 | unless length($line); |
400 | |
401 | if($cmd->debug) |
402 | { |
403 | my $b = "$cmd>>> "; |
404 | print STDERR $b,join("\n$b",split(/\n/,$line)),"\n"; |
405 | } |
406 | |
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407 | # Translate LF => CRLF, but not if the LF is |
408 | # already preceeded by a CR |
409 | $line =~ s/\G()\n|([^\r\n])\n/$+\015\012/sgo; |
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410 | |
411 | ${*$cmd}{'net_cmd_lastch'} ||= " "; |
412 | $line = ${*$cmd}{'net_cmd_lastch'} . $line; |
413 | |
414 | $line =~ s/(\012\.)/$1./sog; |
415 | |
416 | ${*$cmd}{'net_cmd_lastch'} = substr($line,-1,1); |
417 | |
418 | my $len = length($line) - 1; |
419 | my $offset = 1; |
420 | my $win = ""; |
421 | vec($win,fileno($cmd),1) = 1; |
422 | my $timeout = $cmd->timeout || undef; |
423 | |
424 | while($len) |
425 | { |
426 | my $wout; |
427 | if (select(undef,$wout=$win, undef, $timeout) > 0) |
428 | { |
429 | my $w = syswrite($cmd, $line, $len, $offset); |
430 | unless (defined($w)) |
431 | { |
432 | carp("$cmd: $!") if $cmd->debug; |
433 | return undef; |
434 | } |
435 | $len -= $w; |
436 | $offset += $w; |
437 | } |
438 | else |
439 | { |
440 | carp("$cmd: Timeout") if($cmd->debug); |
441 | return undef; |
442 | } |
443 | } |
444 | |
445 | 1; |
446 | } |
447 | |
448 | sub dataend |
449 | { |
450 | my $cmd = shift; |
451 | |
452 | return 0 unless defined(fileno($cmd)); |
453 | |
454 | return 1 |
455 | unless(exists ${*$cmd}{'net_cmd_lastch'}); |
456 | |
457 | if(${*$cmd}{'net_cmd_lastch'} eq "\015") |
458 | { |
459 | syswrite($cmd,"\012",1); |
460 | print STDERR "\n" |
461 | if($cmd->debug); |
462 | } |
463 | elsif(${*$cmd}{'net_cmd_lastch'} ne "\012") |
464 | { |
465 | syswrite($cmd,"\015\012",2); |
466 | print STDERR "\n" |
467 | if($cmd->debug); |
468 | } |
469 | |
470 | print STDERR "$cmd>>> .\n" |
471 | if($cmd->debug); |
472 | |
473 | syswrite($cmd,".\015\012",3); |
474 | |
475 | delete ${*$cmd}{'net_cmd_lastch'}; |
476 | |
477 | $cmd->response() == CMD_OK; |
478 | } |
479 | |
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480 | # read and write to tied filehandle |
481 | sub tied_fh { |
482 | my $cmd = shift; |
483 | ${*$cmd}{'net_cmd_readbuf'} = ''; |
484 | my $fh = gensym(); |
485 | tie *$fh,ref($cmd),$cmd; |
486 | return $fh; |
487 | } |
488 | |
489 | # tie to myself |
490 | sub TIEHANDLE { |
491 | my $class = shift; |
492 | my $cmd = shift; |
493 | return $cmd; |
494 | } |
495 | |
496 | # Tied filehandle read. Reads requested data length, returning |
497 | # end-of-file when the dot is encountered. |
498 | sub READ { |
499 | my $cmd = shift; |
500 | my (undef,$len,$offset) = @_; |
501 | return unless exists ${*$cmd}{'net_cmd_readbuf'}; |
502 | my $done = 0; |
503 | while (!$done and length(${*$cmd}{'net_cmd_readbuf'}) < $len) { |
504 | ${*$cmd}{'net_cmd_readbuf'} .= $cmd->getline() or return; |
505 | $done++ if ${*$cmd}{'net_cmd_readbuf'} =~ s/^\.\r?\n\Z//m; |
506 | } |
507 | |
508 | $_[0] = ''; |
509 | substr($_[0],$offset+0) = substr(${*$cmd}{'net_cmd_readbuf'},0,$len); |
510 | substr(${*$cmd}{'net_cmd_readbuf'},0,$len) = ''; |
511 | delete ${*$cmd}{'net_cmd_readbuf'} if $done; |
512 | |
513 | return length $_[0]; |
514 | } |
515 | |
516 | sub READLINE { |
517 | my $cmd = shift; |
518 | # in this context, we use the presence of readbuf to |
519 | # indicate that we have not yet reached the eof |
520 | return unless exists ${*$cmd}{'net_cmd_readbuf'}; |
521 | my $line = $cmd->getline; |
522 | return if $line =~ /^\.\r?\n/; |
523 | $line; |
524 | } |
525 | |
526 | sub PRINT { |
527 | my $cmd = shift; |
528 | my ($buf,$len,$offset) = @_; |
529 | $len ||= length ($buf); |
530 | $offset += 0; |
531 | return unless $cmd->datasend(substr($buf,$offset,$len)); |
532 | ${*$cmd}{'net_cmd_sending'}++; # flag that we should call dataend() |
533 | return $len; |
534 | } |
535 | |
536 | sub CLOSE { |
537 | my $cmd = shift; |
538 | my $r = exists(${*$cmd}{'net_cmd_sending'}) ? $cmd->dataend : 1; |
539 | delete ${*$cmd}{'net_cmd_readbuf'}; |
540 | delete ${*$cmd}{'net_cmd_sending'}; |
541 | $r; |
542 | } |
543 | |
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544 | 1; |
545 | |
546 | __END__ |
547 | |
548 | |
549 | =head1 NAME |
550 | |
551 | Net::Cmd - Network Command class (as used by FTP, SMTP etc) |
552 | |
553 | =head1 SYNOPSIS |
554 | |
555 | use Net::Cmd; |
686337f3 |
556 | |
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557 | @ISA = qw(Net::Cmd); |
558 | |
559 | =head1 DESCRIPTION |
560 | |
561 | C<Net::Cmd> is a collection of methods that can be inherited by a sub class |
562 | of C<IO::Handle>. These methods implement the functionality required for a |
563 | command based protocol, for example FTP and SMTP. |
564 | |
565 | =head1 USER METHODS |
566 | |
567 | These methods provide a user interface to the C<Net::Cmd> object. |
568 | |
569 | =over 4 |
570 | |
571 | =item debug ( VALUE ) |
572 | |
573 | Set the level of debug information for this object. If C<VALUE> is not given |
574 | then the current state is returned. Otherwise the state is changed to |
575 | C<VALUE> and the previous state returned. |
576 | |
510179aa |
577 | Different packages |
578 | may implement different levels of debug but a non-zero value results in |
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579 | copies of all commands and responses also being sent to STDERR. |
580 | |
581 | If C<VALUE> is C<undef> then the debug level will be set to the default |
582 | debug level for the class. |
583 | |
584 | This method can also be called as a I<static> method to set/get the default |
585 | debug level for a given class. |
586 | |
587 | =item message () |
588 | |
589 | Returns the text message returned from the last command |
590 | |
591 | =item code () |
592 | |
593 | Returns the 3-digit code from the last command. If a command is pending |
594 | then the value 0 is returned |
595 | |
596 | =item ok () |
597 | |
598 | Returns non-zero if the last code value was greater than zero and |
599 | less than 400. This holds true for most command servers. Servers |
600 | where this does not hold may override this method. |
601 | |
602 | =item status () |
603 | |
604 | Returns the most significant digit of the current status code. If a command |
605 | is pending then C<CMD_PENDING> is returned. |
606 | |
607 | =item datasend ( DATA ) |
608 | |
609 | Send data to the remote server, converting LF to CRLF. Any line starting |
610 | with a '.' will be prefixed with another '.'. |
611 | C<DATA> may be an array or a reference to an array. |
612 | |
613 | =item dataend () |
614 | |
615 | End the sending of data to the remote server. This is done by ensuring that |
616 | the data already sent ends with CRLF then sending '.CRLF' to end the |
617 | transmission. Once this data has been sent C<dataend> calls C<response> and |
618 | returns true if C<response> returns CMD_OK. |
619 | |
620 | =back |
621 | |
622 | =head1 CLASS METHODS |
623 | |
624 | These methods are not intended to be called by the user, but used or |
625 | over-ridden by a sub-class of C<Net::Cmd> |
626 | |
627 | =over 4 |
628 | |
629 | =item debug_print ( DIR, TEXT ) |
630 | |
631 | Print debugging information. C<DIR> denotes the direction I<true> being |
632 | data being sent to the server. Calls C<debug_text> before printing to |
633 | STDERR. |
634 | |
635 | =item debug_text ( TEXT ) |
636 | |
637 | This method is called to print debugging information. TEXT is |
638 | the text being sent. The method should return the text to be printed |
639 | |
640 | This is primarily meant for the use of modules such as FTP where passwords |
641 | are sent, but we do not want to display them in the debugging information. |
642 | |
643 | =item command ( CMD [, ARGS, ... ]) |
644 | |
645 | Send a command to the command server. All arguments a first joined with |
646 | a space character and CRLF is appended, this string is then sent to the |
647 | command server. |
648 | |
649 | Returns undef upon failure |
650 | |
651 | =item unsupported () |
652 | |
653 | Sets the status code to 580 and the response text to 'Unsupported command'. |
654 | Returns zero. |
655 | |
656 | =item response () |
657 | |
658 | Obtain a response from the server. Upon success the most significant digit |
659 | of the status code is returned. Upon failure, timeout etc., I<undef> is |
660 | returned. |
661 | |
662 | =item parse_response ( TEXT ) |
663 | |
664 | This method is called by C<response> as a method with one argument. It should |
665 | return an array of 2 values, the 3-digit status code and a flag which is true |
666 | when this is part of a multi-line response and this line is not the list. |
667 | |
668 | =item getline () |
669 | |
670 | Retrieve one line, delimited by CRLF, from the remote server. Returns I<undef> |
671 | upon failure. |
672 | |
673 | B<NOTE>: If you do use this method for any reason, please remember to add |
674 | some C<debug_print> calls into your method. |
675 | |
676 | =item ungetline ( TEXT ) |
677 | |
678 | Unget a line of text from the server. |
679 | |
680 | =item read_until_dot () |
681 | |
682 | Read data from the remote server until a line consisting of a single '.'. |
683 | Any lines starting with '..' will have one of the '.'s removed. |
684 | |
685 | Returns a reference to a list containing the lines, or I<undef> upon failure. |
686 | |
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687 | =item tied_fh () |
688 | |
689 | Returns a filehandle tied to the Net::Cmd object. After issuing a |
690 | command, you may read from this filehandle using read() or <>. The |
691 | filehandle will return EOF when the final dot is encountered. |
692 | Similarly, you may write to the filehandle in order to send data to |
693 | the server after issuing a commmand that expects data to be written. |
694 | |
695 | See the Net::POP3 and Net::SMTP modules for examples of this. |
696 | |
406c51ee |
697 | =back |
698 | |
699 | =head1 EXPORTS |
700 | |
701 | C<Net::Cmd> exports six subroutines, five of these, C<CMD_INFO>, C<CMD_OK>, |
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702 | C<CMD_MORE>, C<CMD_REJECT> and C<CMD_ERROR>, correspond to possible results |
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703 | of C<response> and C<status>. The sixth is C<CMD_PENDING>. |
704 | |
705 | =head1 AUTHOR |
706 | |
707 | Graham Barr <gbarr@pobox.com> |
708 | |
709 | =head1 COPYRIGHT |
710 | |
711 | Copyright (c) 1995-1997 Graham Barr. All rights reserved. |
712 | This program is free software; you can redistribute it and/or modify |
713 | it under the same terms as Perl itself. |
714 | |
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715 | =for html <hr> |
716 | |
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717 | I<$Id: //depot/libnet/Net/Cmd.pm#28 $> |
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718 | |
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719 | =cut |