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343<!--
1721caef 344 "$Id$"
896cc0e8 345
a1a2e89a 346 CUPS API header for CUPS.
896cc0e8 347
a1a2e89a 348 Copyright 2008-2011 by Apple Inc.
896cc0e8 349
350 These coded instructions, statements, and computer programs are the
351 property of Apple Inc. and are protected by Federal copyright
352 law. Distribution and use rights are outlined in the file "LICENSE.txt"
353 which should have been included with this file. If this file is
354 file is missing or damaged, see the license at "http://www.cups.org/".
355-->
356
abc7086c 357<h1 class='title'>CUPS API</h1>
358
896cc0e8 359<div class='summary'><table summary='General Information'>
360<thead>
361<tr>
362 <th>Header</th>
363 <th>cups/cups.h</th>
364</tr>
365</thead>
366<tbody>
367<tr>
368 <th>Library</th>
369 <td>-lcups</td>
370</tr>
371<tr>
372 <th>See Also</th>
373 <td>Programming: <a href='api-overview.html' target='_top'>Introduction to CUPS Programming</a><br>
374 Programming: <a href='api-array.html' target='_top'>Array API</a><br>
375 Programming: <a href='api-filedir.html' target='_top'>File and Directory APIs</a><br>
376 Programming: <a href='api-filter.html' target='_top'>Filter and Backend Programming</a><br>
377 Programming: <a href='api-httpipp.html' target='_top'>HTTP and IPP APIs</a><br>
378 Programming: <a href='api-ppd.html' target='_top'>PPD API</a><br>
379 Programming: <a href='api-raster.html' target='_top'>Raster API</a></td>
380</tr>
381</tbody>
382</table></div>
383<h2 class="title">Contents</h2>
384<ul class="contents">
896cc0e8 385<li><a href="#OVERVIEW">Overview</a><ul class="subcontents">
562234e1 386 <li><a href="#CLIENTS_AND_SERVERS">Clients and Servers</a></li>
387 <li><a href="#PRINTERS_AND_CLASSES">Printers and Classes</a></li>
388 <li><a href="#OPTIONS">Options</a></li>
389 <li><a href="#PRINT_JOBS">Print Jobs</a></li>
390 <li><a href="#ERROR_HANDLING">Error Handling</a></li>
391 <li><a href="#PASSWORDS_AND_AUTHENTICATION">Passwords and Authentication</a></li>
896cc0e8 392</ul></li>
393<li><a href="#FUNCTIONS">Functions</a><ul class="code">
562234e1 394 <li><a href="#appleGetPaperSize" title="Get the default paper size.">appleGetPaperSize</a></li>
395 <li><a href="#cupsAddDest" title="Add a destination to the list of destinations.">cupsAddDest</a></li>
396 <li><a href="#cupsAddOption" title="Add an option to an option array.">cupsAddOption</a></li>
397 <li><a href="#cupsAdminCreateWindowsPPD" title="Create the Windows PPD file for a printer.">cupsAdminCreateWindowsPPD</a></li>
398 <li><a href="#cupsAdminExportSamba" title="Export a printer to Samba.">cupsAdminExportSamba</a></li>
399 <li><a href="#cupsAdminGetServerSettings" title="Get settings from the server.">cupsAdminGetServerSettings</a></li>
400 <li><a href="#cupsAdminSetServerSettings" title="Set settings on the server.">cupsAdminSetServerSettings</a></li>
401 <li><a href="#cupsCancelJob" title="Cancel a print job on the default server.">cupsCancelJob</a></li>
402 <li><a href="#cupsCancelJob2" title="Cancel or purge a print job.">cupsCancelJob2</a></li>
403 <li><a href="#cupsCreateJob" title="Create an empty job for streaming.">cupsCreateJob</a></li>
404 <li><a href="#cupsEncryption" title="Get the current encryption settings.">cupsEncryption</a></li>
405 <li><a href="#cupsFinishDocument" title="Finish sending a document.">cupsFinishDocument</a></li>
406 <li><a href="#cupsFreeDests" title="Free the memory used by the list of destinations.">cupsFreeDests</a></li>
407 <li><a href="#cupsFreeJobs" title="Free memory used by job data.">cupsFreeJobs</a></li>
408 <li><a href="#cupsFreeOptions" title="Free all memory used by options.">cupsFreeOptions</a></li>
409 <li><a href="#cupsGetClasses" title="Get a list of printer classes from the default server.">cupsGetClasses</a></li>
410 <li><a href="#cupsGetDefault" title="Get the default printer or class for the default server.">cupsGetDefault</a></li>
411 <li><a href="#cupsGetDefault2" title="Get the default printer or class for the specified server.">cupsGetDefault2</a></li>
412 <li><a href="#cupsGetDest" title="Get the named destination from the list.">cupsGetDest</a></li>
413 <li><a href="#cupsGetDests" title="Get the list of destinations from the default server.">cupsGetDests</a></li>
414 <li><a href="#cupsGetDests2" title="Get the list of destinations from the specified server.">cupsGetDests2</a></li>
415 <li><a href="#cupsGetJobs" title="Get the jobs from the default server.">cupsGetJobs</a></li>
416 <li><a href="#cupsGetJobs2" title="Get the jobs from the specified server.">cupsGetJobs2</a></li>
417 <li><a href="#cupsGetNamedDest" title="Get options for the named destination.">cupsGetNamedDest</a></li>
418 <li><a href="#cupsGetOption" title="Get an option value.">cupsGetOption</a></li>
419 <li><a href="#cupsGetPPD" title="Get the PPD file for a printer on the default server.">cupsGetPPD</a></li>
420 <li><a href="#cupsGetPPD2" title="Get the PPD file for a printer from the specified server.">cupsGetPPD2</a></li>
421 <li><a href="#cupsGetPPD3" title="Get the PPD file for a printer on the specified
896cc0e8 422server if it has changed.">cupsGetPPD3</a></li>
562234e1 423 <li><a href="#cupsGetPassword" title="Get a password from the user.">cupsGetPassword</a></li>
424 <li><a href="#cupsGetPassword2" title="Get a password from the user using the advanced
fab532bb 425password callback.">cupsGetPassword2</a></li>
562234e1 426 <li><a href="#cupsGetPrinters" title="Get a list of printers from the default server.">cupsGetPrinters</a></li>
427 <li><a href="#cupsGetServerPPD" title="Get an available PPD file from the server.">cupsGetServerPPD</a></li>
428 <li><a href="#cupsLangDefault" title="Return the default language.">cupsLangDefault</a></li>
429 <li><a href="#cupsLangEncoding" title="Return the character encoding (us-ascii, etc.)
896cc0e8 430for the given language.">cupsLangEncoding</a></li>
562234e1 431 <li><a href="#cupsLangFlush" title="Flush all language data out of the cache.">cupsLangFlush</a></li>
432 <li><a href="#cupsLangFree" title="Free language data.">cupsLangFree</a></li>
433 <li><a href="#cupsLangGet" title="Get a language.">cupsLangGet</a></li>
434 <li><a href="#cupsNotifySubject" title="Return the subject for the given notification message.">cupsNotifySubject</a></li>
435 <li><a href="#cupsNotifyText" title="Return the text for the given notification message.">cupsNotifyText</a></li>
436 <li><a href="#cupsParseOptions" title="Parse options from a command-line argument.">cupsParseOptions</a></li>
437 <li><a href="#cupsPrintFile" title="Print a file to a printer or class on the default server.">cupsPrintFile</a></li>
438 <li><a href="#cupsPrintFile2" title="Print a file to a printer or class on the specified
896cc0e8 439server.">cupsPrintFile2</a></li>
562234e1 440 <li><a href="#cupsPrintFiles" title="Print one or more files to a printer or class on the
896cc0e8 441default server.">cupsPrintFiles</a></li>
562234e1 442 <li><a href="#cupsPrintFiles2" title="Print one or more files to a printer or class on the
896cc0e8 443specified server.">cupsPrintFiles2</a></li>
562234e1 444 <li><a href="#cupsRemoveDest" title="Remove a destination from the destination list.">cupsRemoveDest</a></li>
445 <li><a href="#cupsRemoveOption" title="Remove an option from an option array.">cupsRemoveOption</a></li>
446 <li><a href="#cupsServer" title="Return the hostname/address of the current server.">cupsServer</a></li>
447 <li><a href="#cupsSetClientCertCB" title="Set the client certificate callback.">cupsSetClientCertCB</a></li>
448 <li><a href="#cupsSetCredentials" title="Set the default credentials to be used for SSL/TLS
22ac733b 449connections.">cupsSetCredentials</a></li>
562234e1 450 <li><a href="#cupsSetDefaultDest" title="Set the default destination.">cupsSetDefaultDest</a></li>
451 <li><a href="#cupsSetDests" title="Save the list of destinations for the default server.">cupsSetDests</a></li>
452 <li><a href="#cupsSetDests2" title="Save the list of destinations for the specified server.">cupsSetDests2</a></li>
453 <li><a href="#cupsSetEncryption" title="Set the encryption preference.">cupsSetEncryption</a></li>
454 <li><a href="#cupsSetPasswordCB" title="Set the password callback for CUPS.">cupsSetPasswordCB</a></li>
455 <li><a href="#cupsSetPasswordCB2" title="Set the advanced password callback for CUPS.">cupsSetPasswordCB2</a></li>
456 <li><a href="#cupsSetServer" title="Set the default server name and port.">cupsSetServer</a></li>
457 <li><a href="#cupsSetServerCertCB" title="Set the server certificate callback.">cupsSetServerCertCB</a></li>
458 <li><a href="#cupsSetUser" title="Set the default user name.">cupsSetUser</a></li>
459 <li><a href="#cupsStartDocument" title="Add a document to a job created with cupsCreateJob().">cupsStartDocument</a></li>
460 <li><a href="#cupsTempFd" title="Creates a temporary file.">cupsTempFd</a></li>
461 <li><a href="#cupsTempFile" title="Generates a temporary filename.">cupsTempFile</a></li>
462 <li><a href="#cupsTempFile2" title="Creates a temporary CUPS file.">cupsTempFile2</a></li>
463 <li><a href="#cupsUser" title="Return the current user's name.">cupsUser</a></li>
a45b55c7 464</ul></li>
896cc0e8 465<li><a href="#TYPES">Data Types</a><ul class="code">
22ac733b 466 <li><a href="#cups_client_cert_cb_t" title="Client credentials callback ">cups_client_cert_cb_t</a></li>
896cc0e8 467 <li><a href="#cups_dest_t" title="Destination">cups_dest_t</a></li>
ed12a8ec 468 <li><a href="#cups_device_cb_t" title="Device callback ">cups_device_cb_t</a></li>
896cc0e8 469 <li><a href="#cups_job_t" title="Job">cups_job_t</a></li>
470 <li><a href="#cups_option_t" title="Printer Options">cups_option_t</a></li>
8eb1383e 471 <li><a href="#cups_password_cb2_t" title="New password callback ">cups_password_cb2_t</a></li>
896cc0e8 472 <li><a href="#cups_password_cb_t" title="Password callback">cups_password_cb_t</a></li>
473 <li><a href="#cups_ptype_t" title="Printer type/capability bits">cups_ptype_t</a></li>
22ac733b 474 <li><a href="#cups_server_cert_cb_t" title="Server credentials callback ">cups_server_cert_cb_t</a></li>
896cc0e8 475</ul></li>
476<li><a href="#STRUCTURES">Structures</a><ul class="code">
477 <li><a href="#cups_dest_s" title="Destination">cups_dest_s</a></li>
478 <li><a href="#cups_job_s" title="Job">cups_job_s</a></li>
479 <li><a href="#cups_option_s" title="Printer Options">cups_option_s</a></li>
480</ul></li>
72c79ac9 481<li><a href="#VARIABLES">Variables</a><ul class="code">
482 <li><a href="#CF_RETURNS_RETAINED" title="Get the Apple language identifier associated with a
483locale ID.">CF_RETURNS_RETAINED</a></li>
484</ul></li>
896cc0e8 485<li><a href="#ENUMERATIONS">Constants</a><ul class="code">
486 <li><a href="#cups_ptype_e" title="Printer type/capability bit constants">cups_ptype_e</a></li>
487</ul></li>
562234e1 488</ul>
896cc0e8 489<!--
1721caef 490 "$Id$"
896cc0e8 491
2637dd2e 492 API introduction for CUPS.
896cc0e8 493
2637dd2e 494 Copyright 2007-2011 by Apple Inc.
896cc0e8 495 Copyright 1997-2006 by Easy Software Products, all rights reserved.
496
497 These coded instructions, statements, and computer programs are the
498 property of Apple Inc. and are protected by Federal copyright
499 law. Distribution and use rights are outlined in the file "LICENSE.txt"
500 which should have been included with this file. If this file is
501 file is missing or damaged, see the license at "http://www.cups.org/".
502-->
503
504<h2 class='title'><a name='OVERVIEW'>Overview</a></h2>
505
506<p>The CUPS API provides the convenience functions needed to support
507applications, filters, printer drivers, and backends that need to interface
508with the CUPS scheduler.</p>
509
c73f649f 510<h3><a name='CLIENTS_AND_SERVERS'>Clients and Servers</a></h3>
511
512<p>CUPS is based on the Internet Printing Protocol ("IPP"), which allows
513clients (applications) to communicate with a server (the scheduler) to get a
514list of printers, send print jobs, and so forth. You identify which server
515you want to communicate with using a pointer to the opaque structure
516<code>http_t</code>. All of the examples in this document use the
517<code>CUPS_HTTP_DEFAULT</code> constant, referring to the default connection
518to the scheduler. The <a href='api-httpipp.html' target='_top'>HTTP and IPP
519APIs</a> document provides more information on server connections.</p>
520
896cc0e8 521<h3><a name='PRINTERS_AND_CLASSES'>Printers and Classes</a></h3>
522
523<p>Printers and classes (collections of printers) are accessed through
524the <a href="#cups_dest_t"><code>cups_dest_t</code></a> structure which
525includes the name (<code>name</code>), instance (<code>instance</code> -
c73f649f 526a way of selecting certain saved options/settings), and the options and
527attributes associated with that destination (<code>num_options</code> and
896cc0e8 528<code>options</code>). Destinations are created using the
529<a href="#cupsGetDests"><code>cupsGetDests</code></a> function and freed
530using the <a href='#cupsFreeDests'><code>cupsFreeDests</code></a> function.
531The <a href='#cupsGetDest'><code>cupsGetDest</code></a> function finds a
532specific destination for printing:</p>
533
534<pre class='example'>
535#include &lt;cups/cups.h&gt;
536
537<a href='#cups_dest_t'>cups_dest_t</a> *dests;
538int num_dests = <a href='#cupsGetDests'>cupsGetDests</a>(&amp;dests);
539<a href='#cups_dest_t'>cups_dest_t</a> *dest = <a href='#cupsGetDest'>cupsGetDest</a>("name", NULL, num_dests, dests);
540
2637dd2e 541/* do something with dest */
896cc0e8 542
543<a href='#cupsFreeDests'>cupsFreeDests</a>(num_dests, dests);
544</pre>
545
546<p>Passing <code>NULL</code> to
547<a href='#cupsGetDest'><code>cupsGetDest</code></a> for the destination name
548will return the default destination. Similarly, passing a <code>NULL</code>
549instance will return the default instance for that destination.</p>
550
551<div class='table'><table summary='Table 1: Printer Attributes' width='80%'>
552<caption>Table 1: <a name='TABLE1'>Printer Attributes</a></caption>
553<thead>
554<tr>
555 <th>Attribute Name</th>
556 <th>Description</th>
557</tr>
558</thead>
559<tbody>
560<tr>
561 <td>"auth-info-required"</td>
562 <td>The type of authentication required for printing to this
563 destination: "none", "username,password", "domain,username,password",
564 or "negotiate" (Kerberos)</td>
565</tr>
566<tr>
567 <td>"printer-info"</td>
568 <td>The human-readable description of the destination such as "My
569 Laser Printer".</td>
570</tr>
571<tr>
572 <td>"printer-is-accepting-jobs"</td>
fab532bb 573 <td>"true" if the destination is accepting new jobs, "false" if
574 not.</td>
896cc0e8 575</tr>
576<tr>
577 <td>"printer-is-shared"</td>
fab532bb 578 <td>"true" if the destination is being shared with other computers,
579 "false" if not.</td>
896cc0e8 580</tr>
581<tr>
582 <td>"printer-location"</td>
583 <td>The human-readable location of the destination such as "Lab 4".</td>
584</tr>
585<tr>
586 <td>"printer-make-and-model"</td>
587 <td>The human-readable make and model of the destination such as "HP
588 LaserJet 4000 Series".</td>
589</tr>
590<tr>
591 <td>"printer-state"</td>
592 <td>"3" if the destination is idle, "4" if the destination is printing
593 a job, and "5" if the destination is stopped.</td>
594</tr>
595<tr>
596 <td>"printer-state-change-time"</td>
597 <td>The UNIX time when the destination entered the current state.</td>
598</tr>
599<tr>
600 <td>"printer-state-reasons"</td>
601 <td>Additional comma-delimited state keywords for the destination
602 such as "media-tray-empty-error" and "toner-low-warning".</td>
603</tr>
604<tr>
605 <td>"printer-type"</td>
606 <td>The <a href='#cups_printer_t'><code>cups_printer_t</code></a>
607 value associated with the destination.</td>
608</tr>
609</tbody>
610</table></div>
611
612<h3><a name='OPTIONS'>Options</a></h3>
613
614<p>Options are stored in arrays of
615<a href='#cups_option_t'><code>cups_option_t</code></a> structures. Each
616option has a name (<code>name</code>) and value (<code>value</code>)
617associated with it. The <a href='#cups_dest_t'><code>cups_dest_t</code></a>
618<code>num_options</code> and <code>options</code> members contain the
619default options for a particular destination, along with several informational
620attributes about the destination as shown in <a href='#TABLE1'>Table 1</a>.
621The <a href='#cupsGetOption'><code>cupsGetOption</code></a> function gets
622the value for the named option. For example, the following code lists the
623available destinations and their human-readable descriptions:</p>
624
625<pre class='example'>
626#include &lt;cups/cups.h&gt;
627
628<a href='#cups_dest_t'>cups_dest_t</a> *dests;
629int num_dests = <a href='#cupsGetDests'>cupsGetDests</a>(&amp;dests);
630<a href='#cups_dest_t'>cups_dest_t</a> *dest;
631int i;
632const char *value;
633
634for (i = num_dests, dest = dests; i > 0; i --, dest ++)
635 if (dest->instance == NULL)
636 {
637 value = <a href='#cupsGetOption'>cupsGetOption</a>("printer-info", dest->num_options, dest->options);
638 printf("%s (%s)\n", dest->name, value ? value : "no description");
639 }
640
641<a href='#cupsFreeDests'>cupsFreeDests</a>(num_dests, dests);
642</pre>
643
644<p>You can create your own option arrays using the
645<a href='#cupsAddOption'><code>cupsAddOption</code></a> function, which
646adds a single named option to an array:</p>
647
648<pre class='example'>
649#include &lt;cups/cups.h&gt;
650
651int num_options = 0;
652<a href='#cups_option_t'>cups_option_t</a> *options = NULL;
653
654/* The returned num_options value is updated as needed */
655num_options = <a href='#cupsAddOption'>cupsAddOption</a>("first", "value", num_options, &amp;options);
656
657/* This adds a second option value */
658num_options = <a href='#cupsAddOption'>cupsAddOption</a>("second", "value", num_options, &amp;options);
659
660/* This replaces the first option we added */
661num_options = <a href='#cupsAddOption'>cupsAddOption</a>("first", "new value", num_options, &amp;options);
662</pre>
663
664<p>Use a <code>for</code> loop to copy the options from a destination:</p>
665
666<pre class='example'>
667#include &lt;cups/cups.h&gt;
668
669int i;
670int num_options = 0;
671<a href='#cups_option_t'>cups_option_t</a> *options = NULL;
672<a href='#cups_dest_t'>cups_dest_t</a> *dest;
673
674for (i = 0; i < dest->num_options; i ++)
c73f649f 675 num_options = <a href='#cupsAddOption'>cupsAddOption</a>(dest->options[i].name, dest->options[i].value,
676 num_options, &amp;options);
896cc0e8 677</pre>
678
679<p>Use the <a href='#cupsFreeOptions'><code>cupsFreeOptions</code></a>
680function to free the options array when you are done using it:</p>
681
682<pre class='example'>
683<a href='#cupsFreeOptions'>cupsFreeOptions</a>(num_options, options);
684</pre>
685
686<h3><a name='PRINT_JOBS'>Print Jobs</a></h3>
687
688<p>Print jobs are identified by a locally-unique job ID number from 1 to
6892<sup>31</sup>-1 and have options and one or more files for printing to a
690single destination. The <a href='#cupsPrintFile'><code>cupsPrintFile</code></a>
691function creates a new job with one file. The following code prints the CUPS
692test page file:</p>
693
694<pre class='example'>
695#include &lt;cups/cups.h&gt;
696
697<a href='#cups_dest_t'>cups_dest_t</a> *dest;
698int num_options;
699<a href='#cups_option_t'>cups_option_t</a> *options;
700int job_id;
701
702/* Print a single file */
c73f649f 703job_id = <a href='#cupsPrintFile'>cupsPrintFile</a>(dest->name, "/usr/share/cups/data/testprint.ps",
704 "Test Print", num_options, options);
896cc0e8 705</pre>
706
707<p>The <a href='#cupsPrintFiles'><code>cupsPrintFiles</code></a> function
708creates a job with multiple files. The files are provided in a
709<code>char *</code> array:</p>
710
711<pre class='example'>
712#include &lt;cups/cups.h&gt;
713
714<a href='#cups_dest_t'>cups_dest_t</a> *dest;
715int num_options;
716<a href='#cups_option_t'>cups_option_t</a> *options;
717int job_id;
718char *files[3] = { "file1.pdf", "file2.pdf", "file3.pdf" };
719
720/* Print three files */
721job_id = <a href='#cupsPrintFiles'>cupsPrintFiles</a>(dest->name, 3, files, "Test Print", num_options, options);
722</pre>
723
724<p>Finally, the <a href='#cupsCreateJob'><code>cupsCreateJob</code></a>
725function creates a new job with no files in it. Files are added using the
726<a href='#cupsStartDocument'><code>cupsStartDocument</code></a>,
727<a href='api-httpipp.html#cupsWriteRequestData'><code>cupsWriteRequestData</code></a>,
728and <a href='#cupsFinishDocument'><code>cupsFinishDocument</code></a> functions.
729The following example creates a job with 10 text files for printing:</p>
730
731<pre class='example'>
732#include &lt;cups/cups.h&gt;
733
734<a href='#cups_dest_t'>cups_dest_t</a> *dest;
735int num_options;
736<a href='#cups_option_t'>cups_option_t</a> *options;
737int job_id;
738int i;
739char buffer[1024];
740
741/* Create the job */
c73f649f 742job_id = <a href='#cupsCreateJob'>cupsCreateJob</a>(CUPS_HTTP_DEFAULT, dest->name, "10 Text Files",
743 num_options, options);
896cc0e8 744
745/* If the job is created, add 10 files */
746if (job_id > 0)
747{
748 for (i = 1; i &lt;= 10; i ++)
749 {
750 snprintf(buffer, sizeof(buffer), "file%d.txt", i);
751
c73f649f 752 <a href='#cupsStartDocument'>cupsStartDocument</a>(CUPS_HTTP_DEFAULT, dest->name, job_id, buffer,
753 CUPS_FORMAT_TEXT, i == 10);
896cc0e8 754
755 snprintf(buffer, sizeof(buffer),
756 "File %d\n"
757 "\n"
758 "One fish,\n"
759 "Two fish,\n
760 "Red fish,\n
761 "Blue fish\n", i);
762
763 /* cupsWriteRequestData can be called as many times as needed */
764 <a href='#cupsWriteRequestData'>cupsWriteRequestData</a>(CUPS_HTTP_DEFAULT, buffer, strlen(buffer));
765
766 <a href='#cupsFinishDocument'>cupsFinishDocument</a>(CUPS_HTTP_DEFAULT, dest->name);
767 }
768}
769</pre>
770
771<p>Once you have created a job, you can monitor its status using the
772<a href='#cupsGetJobs'><code>cupsGetJobs</code></a> function, which returns
773an array of <a href='#cups_job_t'><code>cups_job_t</code></a> structures.
774Each contains the job ID (<code>id</code>), destination name
775(<code>dest</code>), title (<code>title</code>), and other information
776associated with the job. The job array is freed using the
777<a href='#cupsFreeJobs'><code>cupsFreeJobs</code></a> function. The following
778example monitors a specific job ID, showing the current job state once every
7795 seconds until the job is completed:</p>
780
781<pre class='example'>
782#include &lt;cups/cups.h&gt;
783
784<a href='#cups_dest_t'>cups_dest_t</a> *dest;
785int job_id;
786int num_jobs;
787<a href='#cups_job_t'>cups_job_t</a> *jobs;
788int i;
789ipp_jstate_t job_state = IPP_JOB_PENDING;
790
791while (job_state &lt; IPP_JOB_STOPPED)
792{
793 /* Get my jobs (1) with any state (-1) */
794 num_jobs = <a href='#cupsGetJobs'>cupsGetJobs</a>(&amp;jobs, dest->name, 1, -1);
795
796 /* Loop to find my job */
797 job_state = IPP_JOB_COMPLETED;
798
799 for (i = 0; i &lt; num_jobs; i ++)
800 if (jobs[i].id == job_id)
801 {
802 job_state = jobs[i].state;
803 break;
804 }
805
806 /* Free the job array */
807 <a href='#cupsFreeJobs'>cupsFreeJobs</a>(num_jobs, jobs);
808
809 /* Show the current state */
810 switch (job_state)
811 {
812 case IPP_JOB_PENDING :
813 printf("Job %d is pending.\n", job_id);
814 break;
815 case IPP_JOB_HELD :
816 printf("Job %d is held.\n", job_id);
817 break;
818 case IPP_JOB_PROCESSING :
819 printf("Job %d is processing.\n", job_id);
820 break;
821 case IPP_JOB_STOPPED :
822 printf("Job %d is stopped.\n", job_id);
823 break;
824 case IPP_JOB_CANCELED :
825 printf("Job %d is canceled.\n", job_id);
826 break;
827 case IPP_JOB_ABORTED :
828 printf("Job %d is aborted.\n", job_id);
829 break;
830 case IPP_JOB_COMPLETED :
831 printf("Job %d is completed.\n", job_id);
832 break;
833 }
834
835 /* Sleep if the job is not finished */
836 if (job_state &lt; IPP_JOB_STOPPED)
837 sleep(5);
838}
839</pre>
840
841<p>To cancel a job, use the
842<a href='#cupsCancelJob'><code>cupsCancelJob</code></a> function with the
843job ID:</p>
844
c73f649f 845<pre class='example'>
896cc0e8 846#include &lt;cups/cups.h&gt;
847
848<a href='#cups_dest_t'>cups_dest_t</a> *dest;
849int job_id;
850
851<a href='#cupsCancelJob'>cupsCancelJob</a>(dest->name, job_id);
852</pre>
853
854<h3><a name='ERROR_HANDLING'>Error Handling</a></h3>
855
856<p>If any of the CUPS API printing functions returns an error, the reason for
857that error can be found by calling the
858<a href='#cupsLastError'><code>cupsLastError</code></a> and
859<a href='#cupsLastErrorString'><code>cupsLastErrorString</code></a> functions.
860<a href='#cupsLastError'><code>cupsLastError</code></a> returns the last IPP
861error code
862(<a href='api-httpipp.html#ipp_status_t'><code>ipp_status_t</code></a>)
863that was encountered, while
864<a href='#cupsLastErrorString'><code>cupsLastErrorString</code></a> returns
865a (localized) human-readable string that can be shown to the user. For example,
866if any of the job creation functions returns a job ID of 0, you can use
867<a href='#cupsLastErrorString'><code>cupsLastErrorString</code></a> to show
868the reason why the job could not be created:</p>
869
870<pre class='example'>
871#include &lt;cups/cups.h&gt;
872
873int job_id;
874
875if (job_id == 0)
876 puts(cupsLastErrorString());
877</pre>
878
879<h3><a name='PASSWORDS_AND_AUTHENTICATION'>Passwords and Authentication</a></h3>
880
881<p>CUPS supports authentication of any request, including submission of print
882jobs. The default mechanism for getting the username and password is to use the
883login user and a password from the console.</p>
884
885<p>To support other types of applications, in particular Graphical User
886Interfaces ("GUIs"), the CUPS API provides functions to set the default
887username and to register a callback function that returns a password string.</p>
888
889<p>The <a href="#cupsSetPasswordCB"><code>cupsSetPasswordCB</code></a>
890function is used to set a password callback in your program. Only one
891function can be used at any time.</p>
892
893<p>The <a href="#cupsSetUser"><code>cupsSetUser</code></a> function sets the
894current username for authentication. This function can be called by your
895password callback function to change the current username as needed.</p>
896
897<p>The following example shows a simple password callback that gets a
898username and password from the user:</p>
899
900<pre class='example'>
901#include &lt;cups/cups.h&gt;
902
903const char *
904my_password_cb(const char *prompt)
905{
906 char user[65];
907
908
909 puts(prompt);
910
911 /* Get a username from the user */
912 printf("Username: ");
913 if (fgets(user, sizeof(user), stdin) == NULL)
914 return (NULL);
915
916 /* Strip the newline from the string and set the user */
917 user[strlen(user) - 1] = '\0';
918
919 <a href='#cupsSetUser'>cupsSetUser</a>(user);
920
921 /* Use getpass() to ask for the password... */
922 return (getpass("Password: "));
923}
924
925<a href='#cupsSetPasswordCB'>cupsSetPasswordCB</a>(my_password_cb);
926</pre>
927
928<p>Similarly, a GUI could display the prompt string in a window with input
929fields for the username and password. The username should default to the
930string returned by the <a href="#cupsUser"><code>cupsUser</code></a>
931function.</p>
932<h2 class="title"><a name="FUNCTIONS">Functions</a></h2>
2a2a9245 933<h3 class="function"><a name="appleGetPaperSize">appleGetPaperSize</a></h3>
934<p class="description">Get the default paper size.</p>
935<p class="code">
936char *appleGetPaperSize (<br>
937&nbsp;&nbsp;&nbsp;&nbsp;char *name,<br>
938&nbsp;&nbsp;&nbsp;&nbsp;int namesize<br>
939);</p>
940<h4 class="parameters">Parameters</h4>
941<dl>
942<dt>name</dt>
943<dd class="description">Paper size name buffer</dd>
944<dt>namesize</dt>
945<dd class="description">Size of buffer</dd>
946</dl>
947<h4 class="returnvalue">Return Value</h4>
948<p class="description">Default paper size</p>
896cc0e8 949<h3 class="function"><a name="cupsAddDest">cupsAddDest</a></h3>
950<p class="description">Add a destination to the list of destinations.</p>
951<p class="code">
952int cupsAddDest (<br>
953&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
954&nbsp;&nbsp;&nbsp;&nbsp;const char *instance,<br>
955&nbsp;&nbsp;&nbsp;&nbsp;int num_dests,<br>
956&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_dest_t">cups_dest_t</a> **dests<br>
957);</p>
958<h4 class="parameters">Parameters</h4>
959<dl>
960<dt>name</dt>
961<dd class="description">Destination name</dd>
962<dt>instance</dt>
963<dd class="description">Instance name or <code>NULL</code> for none/primary</dd>
964<dt>num_dests</dt>
965<dd class="description">Number of destinations</dd>
966<dt>dests</dt>
967<dd class="description">Destinations</dd>
968</dl>
969<h4 class="returnvalue">Return Value</h4>
970<p class="description">New number of destinations</p>
971<h4 class="discussion">Discussion</h4>
972<p class="discussion">This function cannot be used to add a new class or printer queue,
973it only adds a new container of saved options for the named
974destination or instance.<br>
975<br>
976If the named destination already exists, the destination list is
977returned unchanged. Adding a new instance of a destination creates
978a copy of that destination's options.<br>
979<br>
980Use the <a href="#cupsSaveDests"><code>cupsSaveDests</code></a> function to save the updated list of
981destinations to the user's lpoptions file.</p>
982<h3 class="function"><a name="cupsAddOption">cupsAddOption</a></h3>
983<p class="description">Add an option to an option array.</p>
984<p class="code">
985int cupsAddOption (<br>
986&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
987&nbsp;&nbsp;&nbsp;&nbsp;const char *value,<br>
988&nbsp;&nbsp;&nbsp;&nbsp;int num_options,<br>
989&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_option_t">cups_option_t</a> **options<br>
990);</p>
991<h4 class="parameters">Parameters</h4>
992<dl>
993<dt>name</dt>
994<dd class="description">Name of option</dd>
995<dt>value</dt>
996<dd class="description">Value of option</dd>
997<dt>num_options</dt>
998<dd class="description">Number of options</dd>
999<dt>options</dt>
1000<dd class="description">Pointer to options</dd>
1001</dl>
1002<h4 class="returnvalue">Return Value</h4>
1003<p class="description">Number of options</p>
1004<h4 class="discussion">Discussion</h4>
1005<p class="discussion">New option arrays can be initialized simply by passing 0 for the
1006&quot;num_options&quot; parameter.</p>
373b3e5f 1007<h3 class="function"><span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span><a name="cupsAdminCreateWindowsPPD">cupsAdminCreateWindowsPPD</a></h3>
1008<p class="description">Create the Windows PPD file for a printer.</p>
1009<p class="code">
1010char *cupsAdminCreateWindowsPPD (<br>
1011&nbsp;&nbsp;&nbsp;&nbsp;http_t *http,<br>
1012&nbsp;&nbsp;&nbsp;&nbsp;const char *dest,<br>
1013&nbsp;&nbsp;&nbsp;&nbsp;char *buffer,<br>
1014&nbsp;&nbsp;&nbsp;&nbsp;int bufsize<br>
1015);</p>
1016<h4 class="parameters">Parameters</h4>
1017<dl>
1018<dt>http</dt>
1019<dd class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></dd>
1020<dt>dest</dt>
1021<dd class="description">Printer or class</dd>
1022<dt>buffer</dt>
1023<dd class="description">Filename buffer</dd>
1024<dt>bufsize</dt>
1025<dd class="description">Size of filename buffer</dd>
1026</dl>
1027<h4 class="returnvalue">Return Value</h4>
1028<p class="description">PPD file or NULL</p>
1029<h3 class="function"><span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span><a name="cupsAdminExportSamba">cupsAdminExportSamba</a></h3>
1030<p class="description">Export a printer to Samba.</p>
1031<p class="code">
1032int cupsAdminExportSamba (<br>
1033&nbsp;&nbsp;&nbsp;&nbsp;const char *dest,<br>
1034&nbsp;&nbsp;&nbsp;&nbsp;const char *ppd,<br>
1035&nbsp;&nbsp;&nbsp;&nbsp;const char *samba_server,<br>
1036&nbsp;&nbsp;&nbsp;&nbsp;const char *samba_user,<br>
1037&nbsp;&nbsp;&nbsp;&nbsp;const char *samba_password,<br>
1038&nbsp;&nbsp;&nbsp;&nbsp;FILE *logfile<br>
1039);</p>
1040<h4 class="parameters">Parameters</h4>
1041<dl>
1042<dt>dest</dt>
1043<dd class="description">Destination to export</dd>
1044<dt>ppd</dt>
1045<dd class="description">PPD file</dd>
1046<dt>samba_server</dt>
1047<dd class="description">Samba server</dd>
1048<dt>samba_user</dt>
1049<dd class="description">Samba username</dd>
1050<dt>samba_password</dt>
1051<dd class="description">Samba password</dd>
1052<dt>logfile</dt>
1053<dd class="description">Log file, if any</dd>
1054</dl>
1055<h4 class="returnvalue">Return Value</h4>
1056<p class="description">1 on success, 0 on failure</p>
1057<h3 class="function"><span class="info">&nbsp;CUPS 1.3/Mac OS X 10.5&nbsp;</span><a name="cupsAdminGetServerSettings">cupsAdminGetServerSettings</a></h3>
1058<p class="description">Get settings from the server.</p>
1059<p class="code">
1060int cupsAdminGetServerSettings (<br>
1061&nbsp;&nbsp;&nbsp;&nbsp;http_t *http,<br>
1062&nbsp;&nbsp;&nbsp;&nbsp;int *num_settings,<br>
1063&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_option_t">cups_option_t</a> **settings<br>
1064);</p>
1065<h4 class="parameters">Parameters</h4>
1066<dl>
1067<dt>http</dt>
1068<dd class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></dd>
1069<dt>num_settings</dt>
1070<dd class="description">Number of settings</dd>
1071<dt>settings</dt>
1072<dd class="description">Settings</dd>
1073</dl>
1074<h4 class="returnvalue">Return Value</h4>
1075<p class="description">1 on success, 0 on failure</p>
1076<h4 class="discussion">Discussion</h4>
1077<p class="discussion">The returned settings should be freed with cupsFreeOptions() when
1078you are done with them.
1079
1080</p>
1081<h3 class="function"><span class="info">&nbsp;CUPS 1.3/Mac OS X 10.5&nbsp;</span><a name="cupsAdminSetServerSettings">cupsAdminSetServerSettings</a></h3>
1082<p class="description">Set settings on the server.</p>
1083<p class="code">
1084int cupsAdminSetServerSettings (<br>
1085&nbsp;&nbsp;&nbsp;&nbsp;http_t *http,<br>
1086&nbsp;&nbsp;&nbsp;&nbsp;int num_settings,<br>
1087&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_option_t">cups_option_t</a> *settings<br>
1088);</p>
1089<h4 class="parameters">Parameters</h4>
1090<dl>
1091<dt>http</dt>
1092<dd class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></dd>
1093<dt>num_settings</dt>
1094<dd class="description">Number of settings</dd>
1095<dt>settings</dt>
1096<dd class="description">Settings</dd>
1097</dl>
1098<h4 class="returnvalue">Return Value</h4>
1099<p class="description">1 on success, 0 on failure</p>
896cc0e8 1100<h3 class="function"><a name="cupsCancelJob">cupsCancelJob</a></h3>
1101<p class="description">Cancel a print job on the default server.</p>
1102<p class="code">
1103int cupsCancelJob (<br>
1104&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
1105&nbsp;&nbsp;&nbsp;&nbsp;int job_id<br>
1106);</p>
1107<h4 class="parameters">Parameters</h4>
1108<dl>
1109<dt>name</dt>
1110<dd class="description">Name of printer or class</dd>
1111<dt>job_id</dt>
c73f649f 1112<dd class="description">Job ID, <code>CUPS_JOBID_CURRENT</code> for the current job, or <code>CUPS_JOBID_ALL</code> for all jobs</dd>
896cc0e8 1113</dl>
1114<h4 class="returnvalue">Return Value</h4>
1115<p class="description">1 on success, 0 on failure</p>
1116<h4 class="discussion">Discussion</h4>
1117<p class="discussion">Pass <code>CUPS_JOBID_ALL</code> to cancel all jobs or <code>CUPS_JOBID_CURRENT</code>
1118to cancel the current job on the named destination.<br>
1119<br>
1120Use the <a href="#cupsLastError"><code>cupsLastError</code></a> and <a href="#cupsLastErrorString"><code>cupsLastErrorString</code></a> functions to get
1121the cause of any failure.</p>
abc7086c 1122<h3 class="function"><span class="info">&nbsp;CUPS 1.4/Mac OS X 10.6&nbsp;</span><a name="cupsCancelJob2">cupsCancelJob2</a></h3>
896cc0e8 1123<p class="description">Cancel or purge a print job.</p>
1124<p class="code">
1125ipp_status_t cupsCancelJob2 (<br>
1126&nbsp;&nbsp;&nbsp;&nbsp;http_t *http,<br>
1127&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
1128&nbsp;&nbsp;&nbsp;&nbsp;int job_id,<br>
1129&nbsp;&nbsp;&nbsp;&nbsp;int purge<br>
1130);</p>
1131<h4 class="parameters">Parameters</h4>
1132<dl>
1133<dt>http</dt>
c73f649f 1134<dd class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></dd>
896cc0e8 1135<dt>name</dt>
1136<dd class="description">Name of printer or class</dd>
1137<dt>job_id</dt>
c73f649f 1138<dd class="description">Job ID, <code>CUPS_JOBID_CURRENT</code> for the current job, or <code>CUPS_JOBID_ALL</code> for all jobs</dd>
896cc0e8 1139<dt>purge</dt>
1140<dd class="description">1 to purge, 0 to cancel</dd>
1141</dl>
1142<h4 class="returnvalue">Return Value</h4>
1143<p class="description">IPP status</p>
1144<h4 class="discussion">Discussion</h4>
1145<p class="discussion">Canceled jobs remain in the job history while purged jobs are removed
1146from the job history.<br>
1147<br>
1148Pass <code>CUPS_JOBID_ALL</code> to cancel all jobs or <code>CUPS_JOBID_CURRENT</code>
1149to cancel the current job on the named destination.<br>
1150<br>
1151Use the <a href="#cupsLastError"><code>cupsLastError</code></a> and <a href="#cupsLastErrorString"><code>cupsLastErrorString</code></a> functions to get
1152the cause of any failure.
1153
1154</p>
abc7086c 1155<h3 class="function"><span class="info">&nbsp;CUPS 1.4/Mac OS X 10.6&nbsp;</span><a name="cupsCreateJob">cupsCreateJob</a></h3>
c73f649f 1156<p class="description">Create an empty job for streaming.</p>
896cc0e8 1157<p class="code">
1158int cupsCreateJob (<br>
1159&nbsp;&nbsp;&nbsp;&nbsp;http_t *http,<br>
1160&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
1161&nbsp;&nbsp;&nbsp;&nbsp;const char *title,<br>
1162&nbsp;&nbsp;&nbsp;&nbsp;int num_options,<br>
1163&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_option_t">cups_option_t</a> *options<br>
1164);</p>
1165<h4 class="parameters">Parameters</h4>
1166<dl>
1167<dt>http</dt>
c73f649f 1168<dd class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></dd>
896cc0e8 1169<dt>name</dt>
c73f649f 1170<dd class="description">Destination name</dd>
896cc0e8 1171<dt>title</dt>
1172<dd class="description">Title of job</dd>
1173<dt>num_options</dt>
1174<dd class="description">Number of options</dd>
1175<dt>options</dt>
1176<dd class="description">Options</dd>
1177</dl>
1178<h4 class="returnvalue">Return Value</h4>
1179<p class="description">Job ID or 0 on error</p>
1180<h4 class="discussion">Discussion</h4>
c73f649f 1181<p class="discussion">Use this function when you want to stream print data using the
1182<a href="#cupsStartDocument"><code>cupsStartDocument</code></a>, <a href="#cupsWriteRequestData"><code>cupsWriteRequestData</code></a>, and
1183<a href="#cupsFinishDocument"><code>cupsFinishDocument</code></a> functions. If you have one or more files to
1184print, use the <a href="#cupsPrintFile2"><code>cupsPrintFile2</code></a> or <a href="#cupsPrintFiles2"><code>cupsPrintFiles2</code></a> function
1185instead.
896cc0e8 1186
1187</p>
1188<h3 class="function"><a name="cupsEncryption">cupsEncryption</a></h3>
fab532bb 1189<p class="description">Get the current encryption settings.</p>
896cc0e8 1190<p class="code">
1191http_encryption_t cupsEncryption (void);</p>
1192<h4 class="returnvalue">Return Value</h4>
1193<p class="description">Encryption settings</p>
1194<h4 class="discussion">Discussion</h4>
1195<p class="discussion">The default encryption setting comes from the CUPS_ENCRYPTION
c73f649f 1196environment variable, then the ~/.cups/client.conf file, and finally the
896cc0e8 1197/etc/cups/client.conf file. If not set, the default is
fab532bb 1198<code>HTTP_ENCRYPT_IF_REQUESTED</code>.<br>
1199<br>
1200Note: The current encryption setting is tracked separately for each thread
1201in a program. Multi-threaded programs that override the setting via the
1202<a href="#cupsSetEncryption"><code>cupsSetEncryption</code></a> function need to do so in each thread for the same
1203setting to be used.</p>
abc7086c 1204<h3 class="function"><span class="info">&nbsp;CUPS 1.4/Mac OS X 10.6&nbsp;</span><a name="cupsFinishDocument">cupsFinishDocument</a></h3>
896cc0e8 1205<p class="description">Finish sending a document.</p>
1206<p class="code">
1207ipp_status_t cupsFinishDocument (<br>
1208&nbsp;&nbsp;&nbsp;&nbsp;http_t *http,<br>
1209&nbsp;&nbsp;&nbsp;&nbsp;const char *name<br>
1210);</p>
1211<h4 class="parameters">Parameters</h4>
1212<dl>
1213<dt>http</dt>
c73f649f 1214<dd class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></dd>
896cc0e8 1215<dt>name</dt>
c73f649f 1216<dd class="description">Destination name</dd>
896cc0e8 1217</dl>
1218<h4 class="returnvalue">Return Value</h4>
1219<p class="description">Status of document submission</p>
1220<h4 class="discussion">Discussion</h4>
1221<p class="discussion">The document must have been started using <a href="#cupsStartDocument"><code>cupsStartDocument</code></a>.
1222
1223</p>
1224<h3 class="function"><a name="cupsFreeDests">cupsFreeDests</a></h3>
1225<p class="description">Free the memory used by the list of destinations.</p>
1226<p class="code">
1227void cupsFreeDests (<br>
1228&nbsp;&nbsp;&nbsp;&nbsp;int num_dests,<br>
1229&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_dest_t">cups_dest_t</a> *dests<br>
1230);</p>
1231<h4 class="parameters">Parameters</h4>
1232<dl>
1233<dt>num_dests</dt>
1234<dd class="description">Number of destinations</dd>
1235<dt>dests</dt>
1236<dd class="description">Destinations</dd>
1237</dl>
1238<h3 class="function"><a name="cupsFreeJobs">cupsFreeJobs</a></h3>
1239<p class="description">Free memory used by job data.</p>
1240<p class="code">
1241void cupsFreeJobs (<br>
1242&nbsp;&nbsp;&nbsp;&nbsp;int num_jobs,<br>
1243&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_job_t">cups_job_t</a> *jobs<br>
1244);</p>
1245<h4 class="parameters">Parameters</h4>
1246<dl>
1247<dt>num_jobs</dt>
1248<dd class="description">Number of jobs</dd>
1249<dt>jobs</dt>
1250<dd class="description">Jobs</dd>
1251</dl>
1252<h3 class="function"><a name="cupsFreeOptions">cupsFreeOptions</a></h3>
1253<p class="description">Free all memory used by options.</p>
1254<p class="code">
1255void cupsFreeOptions (<br>
1256&nbsp;&nbsp;&nbsp;&nbsp;int num_options,<br>
1257&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_option_t">cups_option_t</a> *options<br>
1258);</p>
1259<h4 class="parameters">Parameters</h4>
1260<dl>
1261<dt>num_options</dt>
1262<dd class="description">Number of options</dd>
1263<dt>options</dt>
1264<dd class="description">Pointer to options</dd>
1265</dl>
1266<h3 class="function"><span class="info">&nbsp;DEPRECATED&nbsp;</span><a name="cupsGetClasses">cupsGetClasses</a></h3>
1267<p class="description">Get a list of printer classes from the default server.</p>
1268<p class="code">
1269int cupsGetClasses (<br>
1270&nbsp;&nbsp;&nbsp;&nbsp;char ***classes<br>
1271);</p>
1272<h4 class="parameters">Parameters</h4>
1273<dl>
1274<dt>classes</dt>
1275<dd class="description">Classes</dd>
1276</dl>
1277<h4 class="returnvalue">Return Value</h4>
1278<p class="description">Number of classes</p>
1279<h4 class="discussion">Discussion</h4>
1280<p class="discussion">This function is deprecated - use <a href="#cupsGetDests"><code>cupsGetDests</code></a> instead.
1281
1282</p>
1283<h3 class="function"><a name="cupsGetDefault">cupsGetDefault</a></h3>
1284<p class="description">Get the default printer or class for the default server.</p>
1285<p class="code">
1286const char *cupsGetDefault (void);</p>
1287<h4 class="returnvalue">Return Value</h4>
1288<p class="description">Default printer or <code>NULL</code></p>
1289<h4 class="discussion">Discussion</h4>
1290<p class="discussion">This function returns the default printer or class as defined by
1291the LPDEST or PRINTER environment variables. If these environment
1292variables are not set, the server default destination is returned.
1293Applications should use the <a href="#cupsGetDests"><code>cupsGetDests</code></a> and <a href="#cupsGetDest"><code>cupsGetDest</code></a>
1294functions to get the user-defined default printer, as this function does
1295not support the lpoptions-defined default printer.</p>
373b3e5f 1296<h3 class="function"><span class="info">&nbsp;CUPS 1.1.21/Mac OS X 10.4&nbsp;</span><a name="cupsGetDefault2">cupsGetDefault2</a></h3>
896cc0e8 1297<p class="description">Get the default printer or class for the specified server.</p>
1298<p class="code">
1299const char *cupsGetDefault2 (<br>
1300&nbsp;&nbsp;&nbsp;&nbsp;http_t *http<br>
1301);</p>
1302<h4 class="parameters">Parameters</h4>
1303<dl>
1304<dt>http</dt>
c73f649f 1305<dd class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></dd>
896cc0e8 1306</dl>
1307<h4 class="returnvalue">Return Value</h4>
1308<p class="description">Default printer or <code>NULL</code></p>
1309<h4 class="discussion">Discussion</h4>
1310<p class="discussion">This function returns the default printer or class as defined by
1311the LPDEST or PRINTER environment variables. If these environment
1312variables are not set, the server default destination is returned.
1313Applications should use the <a href="#cupsGetDests"><code>cupsGetDests</code></a> and <a href="#cupsGetDest"><code>cupsGetDest</code></a>
1314functions to get the user-defined default printer, as this function does
1315not support the lpoptions-defined default printer.
1316
1317</p>
1318<h3 class="function"><a name="cupsGetDest">cupsGetDest</a></h3>
1319<p class="description">Get the named destination from the list.</p>
1320<p class="code">
1321<a href="#cups_dest_t">cups_dest_t</a> *cupsGetDest (<br>
1322&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
1323&nbsp;&nbsp;&nbsp;&nbsp;const char *instance,<br>
1324&nbsp;&nbsp;&nbsp;&nbsp;int num_dests,<br>
1325&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_dest_t">cups_dest_t</a> *dests<br>
1326);</p>
1327<h4 class="parameters">Parameters</h4>
1328<dl>
1329<dt>name</dt>
1330<dd class="description">Destination name or <code>NULL</code> for the default destination</dd>
1331<dt>instance</dt>
1332<dd class="description">Instance name or <code>NULL</code></dd>
1333<dt>num_dests</dt>
1334<dd class="description">Number of destinations</dd>
1335<dt>dests</dt>
1336<dd class="description">Destinations</dd>
1337</dl>
1338<h4 class="returnvalue">Return Value</h4>
1339<p class="description">Destination pointer or <code>NULL</code></p>
1340<h4 class="discussion">Discussion</h4>
1341<p class="discussion">Use the <a href="#cupsGetDests"><code>cupsGetDests</code></a> or <a href="#cupsGetDests2"><code>cupsGetDests2</code></a> functions to get a
1342list of supported destinations for the current user.</p>
1343<h3 class="function"><a name="cupsGetDests">cupsGetDests</a></h3>
1344<p class="description">Get the list of destinations from the default server.</p>
1345<p class="code">
1346int cupsGetDests (<br>
1347&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_dest_t">cups_dest_t</a> **dests<br>
1348);</p>
1349<h4 class="parameters">Parameters</h4>
1350<dl>
1351<dt>dests</dt>
1352<dd class="description">Destinations</dd>
1353</dl>
1354<h4 class="returnvalue">Return Value</h4>
1355<p class="description">Number of destinations</p>
1356<h4 class="discussion">Discussion</h4>
1357<p class="discussion">Starting with CUPS 1.2, the returned list of destinations include the
1358printer-info, printer-is-accepting-jobs, printer-is-shared,
1359printer-make-and-model, printer-state, printer-state-change-time,
373b3e5f 1360printer-state-reasons, and printer-type attributes as options. CUPS 1.4
1361adds the marker-change-time, marker-colors, marker-high-levels,
1362marker-levels, marker-low-levels, marker-message, marker-names,
1363marker-types, and printer-commands attributes as well.<br>
896cc0e8 1364<br>
1365Use the <a href="#cupsFreeDests"><code>cupsFreeDests</code></a> function to free the destination list and
1366the <a href="#cupsGetDest"><code>cupsGetDest</code></a> function to find a particular destination.</p>
373b3e5f 1367<h3 class="function"><span class="info">&nbsp;CUPS 1.1.21/Mac OS X 10.4&nbsp;</span><a name="cupsGetDests2">cupsGetDests2</a></h3>
896cc0e8 1368<p class="description">Get the list of destinations from the specified server.</p>
1369<p class="code">
1370int cupsGetDests2 (<br>
1371&nbsp;&nbsp;&nbsp;&nbsp;http_t *http,<br>
1372&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_dest_t">cups_dest_t</a> **dests<br>
1373);</p>
1374<h4 class="parameters">Parameters</h4>
1375<dl>
1376<dt>http</dt>
c73f649f 1377<dd class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></dd>
896cc0e8 1378<dt>dests</dt>
1379<dd class="description">Destinations</dd>
1380</dl>
1381<h4 class="returnvalue">Return Value</h4>
1382<p class="description">Number of destinations</p>
1383<h4 class="discussion">Discussion</h4>
1384<p class="discussion">Starting with CUPS 1.2, the returned list of destinations include the
1385printer-info, printer-is-accepting-jobs, printer-is-shared,
1386printer-make-and-model, printer-state, printer-state-change-time,
373b3e5f 1387printer-state-reasons, and printer-type attributes as options. CUPS 1.4
1388adds the marker-change-time, marker-colors, marker-high-levels,
1389marker-levels, marker-low-levels, marker-message, marker-names,
1390marker-types, and printer-commands attributes as well.<br>
896cc0e8 1391<br>
1392Use the <a href="#cupsFreeDests"><code>cupsFreeDests</code></a> function to free the destination list and
1393the <a href="#cupsGetDest"><code>cupsGetDest</code></a> function to find a particular destination.
1394
896cc0e8 1395</p>
1396<h3 class="function"><a name="cupsGetJobs">cupsGetJobs</a></h3>
1397<p class="description">Get the jobs from the default server.</p>
1398<p class="code">
1399int cupsGetJobs (<br>
1400&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_job_t">cups_job_t</a> **jobs,<br>
1401&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
1402&nbsp;&nbsp;&nbsp;&nbsp;int myjobs,<br>
1403&nbsp;&nbsp;&nbsp;&nbsp;int whichjobs<br>
1404);</p>
1405<h4 class="parameters">Parameters</h4>
1406<dl>
1407<dt>jobs</dt>
1408<dd class="description">Job data</dd>
1409<dt>name</dt>
c73f649f 1410<dd class="description"><code>NULL</code> = all destinations, otherwise show jobs for named destination</dd>
896cc0e8 1411<dt>myjobs</dt>
1412<dd class="description">0 = all users, 1 = mine</dd>
1413<dt>whichjobs</dt>
1414<dd class="description"><code>CUPS_WHICHJOBS_ALL</code>, <code>CUPS_WHICHJOBS_ACTIVE</code>, or <code>CUPS_WHICHJOBS_COMPLETED</code></dd>
1415</dl>
1416<h4 class="returnvalue">Return Value</h4>
1417<p class="description">Number of jobs</p>
1418<h4 class="discussion">Discussion</h4>
1419<p class="discussion">A &quot;whichjobs&quot; value of <code>CUPS_WHICHJOBS_ALL</code> returns all jobs regardless
1420of state, while <code>CUPS_WHICHJOBS_ACTIVE</code> returns jobs that are
1421pending, processing, or held and <code>CUPS_WHICHJOBS_COMPLETED</code> returns
1422jobs that are stopped, canceled, aborted, or completed.</p>
373b3e5f 1423<h3 class="function"><span class="info">&nbsp;CUPS 1.1.21/Mac OS X 10.4&nbsp;</span><a name="cupsGetJobs2">cupsGetJobs2</a></h3>
896cc0e8 1424<p class="description">Get the jobs from the specified server.</p>
1425<p class="code">
1426int cupsGetJobs2 (<br>
1427&nbsp;&nbsp;&nbsp;&nbsp;http_t *http,<br>
1428&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_job_t">cups_job_t</a> **jobs,<br>
1429&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
1430&nbsp;&nbsp;&nbsp;&nbsp;int myjobs,<br>
1431&nbsp;&nbsp;&nbsp;&nbsp;int whichjobs<br>
1432);</p>
1433<h4 class="parameters">Parameters</h4>
1434<dl>
1435<dt>http</dt>
c73f649f 1436<dd class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></dd>
896cc0e8 1437<dt>jobs</dt>
1438<dd class="description">Job data</dd>
1439<dt>name</dt>
c73f649f 1440<dd class="description"><code>NULL</code> = all destinations, otherwise show jobs for named destination</dd>
896cc0e8 1441<dt>myjobs</dt>
1442<dd class="description">0 = all users, 1 = mine</dd>
1443<dt>whichjobs</dt>
1444<dd class="description"><code>CUPS_WHICHJOBS_ALL</code>, <code>CUPS_WHICHJOBS_ACTIVE</code>, or <code>CUPS_WHICHJOBS_COMPLETED</code></dd>
1445</dl>
1446<h4 class="returnvalue">Return Value</h4>
1447<p class="description">Number of jobs</p>
1448<h4 class="discussion">Discussion</h4>
1449<p class="discussion">A &quot;whichjobs&quot; value of <code>CUPS_WHICHJOBS_ALL</code> returns all jobs regardless
1450of state, while <code>CUPS_WHICHJOBS_ACTIVE</code> returns jobs that are
1451pending, processing, or held and <code>CUPS_WHICHJOBS_COMPLETED</code> returns
1452jobs that are stopped, canceled, aborted, or completed.
1453
1454</p>
abc7086c 1455<h3 class="function"><span class="info">&nbsp;CUPS 1.4/Mac OS X 10.6&nbsp;</span><a name="cupsGetNamedDest">cupsGetNamedDest</a></h3>
896cc0e8 1456<p class="description">Get options for the named destination.</p>
1457<p class="code">
1458<a href="#cups_dest_t">cups_dest_t</a> *cupsGetNamedDest (<br>
1459&nbsp;&nbsp;&nbsp;&nbsp;http_t *http,<br>
1460&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
1461&nbsp;&nbsp;&nbsp;&nbsp;const char *instance<br>
1462);</p>
1463<h4 class="parameters">Parameters</h4>
1464<dl>
1465<dt>http</dt>
c73f649f 1466<dd class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></dd>
896cc0e8 1467<dt>name</dt>
c73f649f 1468<dd class="description">Destination name or <code>NULL</code> for the default destination</dd>
896cc0e8 1469<dt>instance</dt>
1470<dd class="description">Instance name or <code>NULL</code></dd>
1471</dl>
1472<h4 class="returnvalue">Return Value</h4>
1473<p class="description">Destination or <code>NULL</code></p>
1474<h4 class="discussion">Discussion</h4>
1475<p class="discussion">This function is optimized for retrieving a single destination and should
1476be used instead of <a href="#cupsGetDests"><code>cupsGetDests</code></a> and <a href="#cupsGetDest"><code>cupsGetDest</code></a> when you either
1477know the name of the destination or want to print to the default destination.
1478If <code>NULL</code> is returned, the destination does not exist or there is no
1479default destination.<br>
1480<br>
1481If &quot;http&quot; is <code>CUPS_HTTP_DEFAULT</code>, the connection to the default print
1482server will be used.<br>
1483<br>
1484If &quot;name&quot; is <code>NULL</code>, the default printer for the current user will be
1485returned.<br>
1486<br>
1487The returned destination must be freed using <a href="#cupsFreeDests"><code>cupsFreeDests</code></a> with a
1488&quot;num_dests&quot; value of 1.
1489
1490</p>
1491<h3 class="function"><a name="cupsGetOption">cupsGetOption</a></h3>
1492<p class="description">Get an option value.</p>
1493<p class="code">
1494const char *cupsGetOption (<br>
1495&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
1496&nbsp;&nbsp;&nbsp;&nbsp;int num_options,<br>
1497&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_option_t">cups_option_t</a> *options<br>
1498);</p>
1499<h4 class="parameters">Parameters</h4>
1500<dl>
1501<dt>name</dt>
1502<dd class="description">Name of option</dd>
1503<dt>num_options</dt>
1504<dd class="description">Number of options</dd>
1505<dt>options</dt>
1506<dd class="description">Options</dd>
1507</dl>
1508<h4 class="returnvalue">Return Value</h4>
1509<p class="description">Option value or <code>NULL</code></p>
1510<h3 class="function"><a name="cupsGetPPD">cupsGetPPD</a></h3>
1511<p class="description">Get the PPD file for a printer on the default server.</p>
1512<p class="code">
1513const char *cupsGetPPD (<br>
1514&nbsp;&nbsp;&nbsp;&nbsp;const char *name<br>
1515);</p>
1516<h4 class="parameters">Parameters</h4>
1517<dl>
1518<dt>name</dt>
c73f649f 1519<dd class="description">Destination name</dd>
896cc0e8 1520</dl>
1521<h4 class="returnvalue">Return Value</h4>
1522<p class="description">Filename for PPD file</p>
1523<h4 class="discussion">Discussion</h4>
1524<p class="discussion">For classes, <code>cupsGetPPD</code> returns the PPD file for the first printer
c73f649f 1525in the class.<br>
1526<br>
1527The returned filename is stored in a static buffer and is overwritten with
6f7fcc0f 1528each call to <code>cupsGetPPD</code> or <a href="#cupsGetPPD2"><code>cupsGetPPD2</code></a>. The caller &quot;owns&quot; the
1529file that is created and must <code>unlink</code> the returned filename.</p>
373b3e5f 1530<h3 class="function"><span class="info">&nbsp;CUPS 1.1.21/Mac OS X 10.4&nbsp;</span><a name="cupsGetPPD2">cupsGetPPD2</a></h3>
896cc0e8 1531<p class="description">Get the PPD file for a printer from the specified server.</p>
1532<p class="code">
1533const char *cupsGetPPD2 (<br>
1534&nbsp;&nbsp;&nbsp;&nbsp;http_t *http,<br>
1535&nbsp;&nbsp;&nbsp;&nbsp;const char *name<br>
1536);</p>
1537<h4 class="parameters">Parameters</h4>
1538<dl>
1539<dt>http</dt>
c73f649f 1540<dd class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></dd>
896cc0e8 1541<dt>name</dt>
c73f649f 1542<dd class="description">Destination name</dd>
896cc0e8 1543</dl>
1544<h4 class="returnvalue">Return Value</h4>
1545<p class="description">Filename for PPD file</p>
1546<h4 class="discussion">Discussion</h4>
1547<p class="discussion">For classes, <code>cupsGetPPD2</code> returns the PPD file for the first printer
c73f649f 1548in the class.<br>
1549<br>
1550The returned filename is stored in a static buffer and is overwritten with
6f7fcc0f 1551each call to <a href="#cupsGetPPD"><code>cupsGetPPD</code></a> or <code>cupsGetPPD2</code>. The caller &quot;owns&quot; the
1552file that is created and must <code>unlink</code> the returned filename.
896cc0e8 1553
1554</p>
abc7086c 1555<h3 class="function"><span class="info">&nbsp;CUPS 1.4/Mac OS X 10.6&nbsp;</span><a name="cupsGetPPD3">cupsGetPPD3</a></h3>
896cc0e8 1556<p class="description">Get the PPD file for a printer on the specified
1557server if it has changed.</p>
1558<p class="code">
1559http_status_t cupsGetPPD3 (<br>
1560&nbsp;&nbsp;&nbsp;&nbsp;http_t *http,<br>
1561&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
1562&nbsp;&nbsp;&nbsp;&nbsp;time_t *modtime,<br>
1563&nbsp;&nbsp;&nbsp;&nbsp;char *buffer,<br>
1564&nbsp;&nbsp;&nbsp;&nbsp;size_t bufsize<br>
1565);</p>
1566<h4 class="parameters">Parameters</h4>
1567<dl>
1568<dt>http</dt>
1569<dd class="description">HTTP connection or <code>CUPS_HTTP_DEFAULT</code></dd>
1570<dt>name</dt>
c73f649f 1571<dd class="description">Destination name</dd>
896cc0e8 1572<dt>modtime</dt>
1573<dd class="description">Modification time</dd>
1574<dt>buffer</dt>
1575<dd class="description">Filename buffer</dd>
1576<dt>bufsize</dt>
1577<dd class="description">Size of filename buffer</dd>
1578</dl>
1579<h4 class="returnvalue">Return Value</h4>
1580<p class="description">HTTP status</p>
1581<h4 class="discussion">Discussion</h4>
1582<p class="discussion">The &quot;modtime&quot; parameter contains the modification time of any
1583locally-cached content and is updated with the time from the PPD file on
1584the server.<br>
1585<br>
1586The &quot;buffer&quot; parameter contains the local PPD filename. If it contains
1587the empty string, a new temporary file is created, otherwise the existing
6f7fcc0f 1588file will be overwritten as needed. The caller &quot;owns&quot; the file that is
1589created and must <code>unlink</code> the returned filename.<br>
896cc0e8 1590<br>
1591On success, <code>HTTP_OK</code> is returned for a new PPD file and
1592<code>HTTP_NOT_MODIFIED</code> if the existing PPD file is up-to-date. Any other
1593status is an error.<br>
1594<br>
1595For classes, <code>cupsGetPPD3</code> returns the PPD file for the first printer
c73f649f 1596in the class.
1597
1598</p>
896cc0e8 1599<h3 class="function"><a name="cupsGetPassword">cupsGetPassword</a></h3>
1600<p class="description">Get a password from the user.</p>
1601<p class="code">
1602const char *cupsGetPassword (<br>
1603&nbsp;&nbsp;&nbsp;&nbsp;const char *prompt<br>
1604);</p>
1605<h4 class="parameters">Parameters</h4>
1606<dl>
1607<dt>prompt</dt>
1608<dd class="description">Prompt string</dd>
1609</dl>
1610<h4 class="returnvalue">Return Value</h4>
1611<p class="description">Password</p>
1612<h4 class="discussion">Discussion</h4>
1613<p class="discussion">Uses the current password callback function. Returns <code>NULL</code> if the
fab532bb 1614user does not provide a password.<br>
1615<br>
1616Note: The current password callback function is tracked separately for each
1617thread in a program. Multi-threaded programs that override the setting via
1618the <a href="#cupsSetPasswordCB"><code>cupsSetPasswordCB</code></a> or <a href="#cupsSetPasswordCB2"><code>cupsSetPasswordCB2</code></a> functions need to
1619do so in each thread for the same function to be used.</p>
abc7086c 1620<h3 class="function"><span class="info">&nbsp;CUPS 1.4/Mac OS X 10.6&nbsp;</span><a name="cupsGetPassword2">cupsGetPassword2</a></h3>
8eb1383e 1621<p class="description">Get a password from the user using the advanced
fab532bb 1622password callback.</p>
8eb1383e 1623<p class="code">
1624const char *cupsGetPassword2 (<br>
1625&nbsp;&nbsp;&nbsp;&nbsp;const char *prompt,<br>
1626&nbsp;&nbsp;&nbsp;&nbsp;http_t *http,<br>
1627&nbsp;&nbsp;&nbsp;&nbsp;const char *method,<br>
1628&nbsp;&nbsp;&nbsp;&nbsp;const char *resource<br>
1629);</p>
1630<h4 class="parameters">Parameters</h4>
1631<dl>
1632<dt>prompt</dt>
1633<dd class="description">Prompt string</dd>
1634<dt>http</dt>
1635<dd class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></dd>
1636<dt>method</dt>
1637<dd class="description">Request method (&quot;GET&quot;, &quot;POST&quot;, &quot;PUT&quot;)</dd>
1638<dt>resource</dt>
1639<dd class="description">Resource path</dd>
1640</dl>
1641<h4 class="returnvalue">Return Value</h4>
1642<p class="description">Password</p>
1643<h4 class="discussion">Discussion</h4>
1644<p class="discussion">Uses the current password callback function. Returns <code>NULL</code> if the
fab532bb 1645user does not provide a password.<br>
1646<br>
1647Note: The current password callback function is tracked separately for each
1648thread in a program. Multi-threaded programs that override the setting via
1649the <a href="#cupsSetPasswordCB"><code>cupsSetPasswordCB</code></a> or <a href="#cupsSetPasswordCB2"><code>cupsSetPasswordCB2</code></a> functions need to
1650do so in each thread for the same function to be used.
8eb1383e 1651
1652</p>
896cc0e8 1653<h3 class="function"><span class="info">&nbsp;DEPRECATED&nbsp;</span><a name="cupsGetPrinters">cupsGetPrinters</a></h3>
1654<p class="description">Get a list of printers from the default server.</p>
1655<p class="code">
1656int cupsGetPrinters (<br>
1657&nbsp;&nbsp;&nbsp;&nbsp;char ***printers<br>
1658);</p>
1659<h4 class="parameters">Parameters</h4>
1660<dl>
1661<dt>printers</dt>
1662<dd class="description">Printers</dd>
1663</dl>
1664<h4 class="returnvalue">Return Value</h4>
1665<p class="description">Number of printers</p>
1666<h4 class="discussion">Discussion</h4>
1667<p class="discussion">This function is deprecated - use <a href="#cupsGetDests"><code>cupsGetDests</code></a> instead.
1668
1669</p>
373b3e5f 1670<h3 class="function"><span class="info">&nbsp;CUPS 1.3/Mac OS X 10.5&nbsp;</span><a name="cupsGetServerPPD">cupsGetServerPPD</a></h3>
896cc0e8 1671<p class="description">Get an available PPD file from the server.</p>
1672<p class="code">
1673char *cupsGetServerPPD (<br>
1674&nbsp;&nbsp;&nbsp;&nbsp;http_t *http,<br>
1675&nbsp;&nbsp;&nbsp;&nbsp;const char *name<br>
1676);</p>
1677<h4 class="parameters">Parameters</h4>
1678<dl>
1679<dt>http</dt>
c73f649f 1680<dd class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></dd>
896cc0e8 1681<dt>name</dt>
1682<dd class="description">Name of PPD file (&quot;ppd-name&quot;)</dd>
1683</dl>
1684<h4 class="returnvalue">Return Value</h4>
1685<p class="description">Name of PPD file or <code>NULL</code> on error</p>
1686<h4 class="discussion">Discussion</h4>
1687<p class="discussion">This function returns the named PPD file from the server. The
1688list of available PPDs is provided by the IPP <code>CUPS_GET_PPDS</code>
1689operation.<br>
1690<br>
1691You must remove (unlink) the PPD file when you are finished with
1692it. The PPD filename is stored in a static location that will be
1693overwritten on the next call to <a href="#cupsGetPPD"><code>cupsGetPPD</code></a>, <a href="#cupsGetPPD2"><code>cupsGetPPD2</code></a>,
1694or <a href="#cupsGetServerPPD"><code>cupsGetServerPPD</code></a>.
1695
1696</p>
1697<h3 class="function"><a name="cupsLangDefault">cupsLangDefault</a></h3>
1698<p class="description">Return the default language.</p>
1699<p class="code">
1700cups_lang_t *cupsLangDefault (void);</p>
1701<h4 class="returnvalue">Return Value</h4>
1702<p class="description">Language data</p>
1703<h3 class="function"><a name="cupsLangEncoding">cupsLangEncoding</a></h3>
1704<p class="description">Return the character encoding (us-ascii, etc.)
1705for the given language.</p>
1706<p class="code">
1707const char *cupsLangEncoding (<br>
1708&nbsp;&nbsp;&nbsp;&nbsp;cups_lang_t *lang<br>
1709);</p>
1710<h4 class="parameters">Parameters</h4>
1711<dl>
1712<dt>lang</dt>
1713<dd class="description">Language data</dd>
1714</dl>
1715<h4 class="returnvalue">Return Value</h4>
1716<p class="description">Character encoding</p>
1717<h3 class="function"><a name="cupsLangFlush">cupsLangFlush</a></h3>
1718<p class="description">Flush all language data out of the cache.</p>
1719<p class="code">
1720void cupsLangFlush (void);</p>
1721<h3 class="function"><a name="cupsLangFree">cupsLangFree</a></h3>
1722<p class="description">Free language data.</p>
1723<p class="code">
1724void cupsLangFree (<br>
1725&nbsp;&nbsp;&nbsp;&nbsp;cups_lang_t *lang<br>
1726);</p>
1727<h4 class="parameters">Parameters</h4>
1728<dl>
1729<dt>lang</dt>
1730<dd class="description">Language to free</dd>
1731</dl>
1732<h4 class="discussion">Discussion</h4>
1733<p class="discussion">This does not actually free anything; use <a href="#cupsLangFlush"><code>cupsLangFlush</code></a> for that.</p>
1734<h3 class="function"><a name="cupsLangGet">cupsLangGet</a></h3>
1735<p class="description">Get a language.</p>
1736<p class="code">
1737cups_lang_t *cupsLangGet (<br>
1738&nbsp;&nbsp;&nbsp;&nbsp;const char *language<br>
1739);</p>
1740<h4 class="parameters">Parameters</h4>
1741<dl>
1742<dt>language</dt>
1743<dd class="description">Language or locale</dd>
1744</dl>
1745<h4 class="returnvalue">Return Value</h4>
1746<p class="description">Language data</p>
373b3e5f 1747<h3 class="function"><span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span><a name="cupsNotifySubject">cupsNotifySubject</a></h3>
896cc0e8 1748<p class="description">Return the subject for the given notification message.</p>
1749<p class="code">
1750char *cupsNotifySubject (<br>
1751&nbsp;&nbsp;&nbsp;&nbsp;cups_lang_t *lang,<br>
1752&nbsp;&nbsp;&nbsp;&nbsp;ipp_t *event<br>
1753);</p>
1754<h4 class="parameters">Parameters</h4>
1755<dl>
1756<dt>lang</dt>
1757<dd class="description">Language data</dd>
1758<dt>event</dt>
1759<dd class="description">Event data</dd>
1760</dl>
1761<h4 class="returnvalue">Return Value</h4>
1762<p class="description">Subject string or <code>NULL</code></p>
1763<h4 class="discussion">Discussion</h4>
c73f649f 1764<p class="discussion">The returned string must be freed by the caller using <code>free</code>.
896cc0e8 1765
1766</p>
373b3e5f 1767<h3 class="function"><span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span><a name="cupsNotifyText">cupsNotifyText</a></h3>
896cc0e8 1768<p class="description">Return the text for the given notification message.</p>
1769<p class="code">
1770char *cupsNotifyText (<br>
1771&nbsp;&nbsp;&nbsp;&nbsp;cups_lang_t *lang,<br>
1772&nbsp;&nbsp;&nbsp;&nbsp;ipp_t *event<br>
1773);</p>
1774<h4 class="parameters">Parameters</h4>
1775<dl>
1776<dt>lang</dt>
1777<dd class="description">Language data</dd>
1778<dt>event</dt>
1779<dd class="description">Event data</dd>
1780</dl>
1781<h4 class="returnvalue">Return Value</h4>
1782<p class="description">Message text or <code>NULL</code></p>
1783<h4 class="discussion">Discussion</h4>
1784<p class="discussion">The returned string must be freed by the caller using <code>free</code>.
1785
1786</p>
1787<h3 class="function"><a name="cupsParseOptions">cupsParseOptions</a></h3>
1788<p class="description">Parse options from a command-line argument.</p>
1789<p class="code">
1790int cupsParseOptions (<br>
1791&nbsp;&nbsp;&nbsp;&nbsp;const char *arg,<br>
1792&nbsp;&nbsp;&nbsp;&nbsp;int num_options,<br>
1793&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_option_t">cups_option_t</a> **options<br>
1794);</p>
1795<h4 class="parameters">Parameters</h4>
1796<dl>
1797<dt>arg</dt>
1798<dd class="description">Argument to parse</dd>
1799<dt>num_options</dt>
1800<dd class="description">Number of options</dd>
1801<dt>options</dt>
1802<dd class="description">Options found</dd>
1803</dl>
1804<h4 class="returnvalue">Return Value</h4>
1805<p class="description">Number of options found</p>
1806<h4 class="discussion">Discussion</h4>
1807<p class="discussion">This function converts space-delimited name/value pairs according
1808to the PAPI text option ABNF specification. Collection values
1809(&quot;name={a=... b=... c=...}&quot;) are stored with the curley brackets
1810intact - use <code>cupsParseOptions</code> on the value to extract the
1811collection attributes.</p>
1812<h3 class="function"><a name="cupsPrintFile">cupsPrintFile</a></h3>
1813<p class="description">Print a file to a printer or class on the default server.</p>
1814<p class="code">
1815int cupsPrintFile (<br>
1816&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
1817&nbsp;&nbsp;&nbsp;&nbsp;const char *filename,<br>
1818&nbsp;&nbsp;&nbsp;&nbsp;const char *title,<br>
1819&nbsp;&nbsp;&nbsp;&nbsp;int num_options,<br>
1820&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_option_t">cups_option_t</a> *options<br>
1821);</p>
1822<h4 class="parameters">Parameters</h4>
1823<dl>
1824<dt>name</dt>
c73f649f 1825<dd class="description">Destination name</dd>
896cc0e8 1826<dt>filename</dt>
1827<dd class="description">File to print</dd>
1828<dt>title</dt>
1829<dd class="description">Title of job</dd>
1830<dt>num_options</dt>
1831<dd class="description">Number of options</dd>
1832<dt>options</dt>
1833<dd class="description">Options</dd>
1834</dl>
1835<h4 class="returnvalue">Return Value</h4>
1836<p class="description">Job ID or 0 on error</p>
373b3e5f 1837<h3 class="function"><span class="info">&nbsp;CUPS 1.1.21/Mac OS X 10.4&nbsp;</span><a name="cupsPrintFile2">cupsPrintFile2</a></h3>
896cc0e8 1838<p class="description">Print a file to a printer or class on the specified
1839server.</p>
1840<p class="code">
1841int cupsPrintFile2 (<br>
1842&nbsp;&nbsp;&nbsp;&nbsp;http_t *http,<br>
1843&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
1844&nbsp;&nbsp;&nbsp;&nbsp;const char *filename,<br>
1845&nbsp;&nbsp;&nbsp;&nbsp;const char *title,<br>
1846&nbsp;&nbsp;&nbsp;&nbsp;int num_options,<br>
1847&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_option_t">cups_option_t</a> *options<br>
1848);</p>
1849<h4 class="parameters">Parameters</h4>
1850<dl>
1851<dt>http</dt>
c73f649f 1852<dd class="description">Connection to server</dd>
896cc0e8 1853<dt>name</dt>
c73f649f 1854<dd class="description">Destination name</dd>
896cc0e8 1855<dt>filename</dt>
1856<dd class="description">File to print</dd>
1857<dt>title</dt>
1858<dd class="description">Title of job</dd>
1859<dt>num_options</dt>
1860<dd class="description">Number of options</dd>
1861<dt>options</dt>
1862<dd class="description">Options</dd>
1863</dl>
1864<h4 class="returnvalue">Return Value</h4>
1865<p class="description">Job ID or 0 on error</p>
1866<h3 class="function"><a name="cupsPrintFiles">cupsPrintFiles</a></h3>
1867<p class="description">Print one or more files to a printer or class on the
1868default server.</p>
1869<p class="code">
1870int cupsPrintFiles (<br>
1871&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
1872&nbsp;&nbsp;&nbsp;&nbsp;int num_files,<br>
1873&nbsp;&nbsp;&nbsp;&nbsp;const char **files,<br>
1874&nbsp;&nbsp;&nbsp;&nbsp;const char *title,<br>
1875&nbsp;&nbsp;&nbsp;&nbsp;int num_options,<br>
1876&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_option_t">cups_option_t</a> *options<br>
1877);</p>
1878<h4 class="parameters">Parameters</h4>
1879<dl>
1880<dt>name</dt>
c73f649f 1881<dd class="description">Destination name</dd>
896cc0e8 1882<dt>num_files</dt>
1883<dd class="description">Number of files</dd>
1884<dt>files</dt>
1885<dd class="description">File(s) to print</dd>
1886<dt>title</dt>
1887<dd class="description">Title of job</dd>
1888<dt>num_options</dt>
1889<dd class="description">Number of options</dd>
1890<dt>options</dt>
1891<dd class="description">Options</dd>
1892</dl>
1893<h4 class="returnvalue">Return Value</h4>
1894<p class="description">Job ID or 0 on error</p>
373b3e5f 1895<h3 class="function"><span class="info">&nbsp;CUPS 1.1.21/Mac OS X 10.4&nbsp;</span><a name="cupsPrintFiles2">cupsPrintFiles2</a></h3>
896cc0e8 1896<p class="description">Print one or more files to a printer or class on the
1897specified server.</p>
1898<p class="code">
1899int cupsPrintFiles2 (<br>
1900&nbsp;&nbsp;&nbsp;&nbsp;http_t *http,<br>
1901&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
1902&nbsp;&nbsp;&nbsp;&nbsp;int num_files,<br>
1903&nbsp;&nbsp;&nbsp;&nbsp;const char **files,<br>
1904&nbsp;&nbsp;&nbsp;&nbsp;const char *title,<br>
1905&nbsp;&nbsp;&nbsp;&nbsp;int num_options,<br>
1906&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_option_t">cups_option_t</a> *options<br>
1907);</p>
1908<h4 class="parameters">Parameters</h4>
1909<dl>
1910<dt>http</dt>
c73f649f 1911<dd class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></dd>
896cc0e8 1912<dt>name</dt>
c73f649f 1913<dd class="description">Destination name</dd>
896cc0e8 1914<dt>num_files</dt>
1915<dd class="description">Number of files</dd>
1916<dt>files</dt>
1917<dd class="description">File(s) to print</dd>
1918<dt>title</dt>
1919<dd class="description">Title of job</dd>
1920<dt>num_options</dt>
1921<dd class="description">Number of options</dd>
1922<dt>options</dt>
1923<dd class="description">Options</dd>
1924</dl>
1925<h4 class="returnvalue">Return Value</h4>
1926<p class="description">Job ID or 0 on error</p>
373b3e5f 1927<h3 class="function"><span class="info">&nbsp;CUPS 1.3/Mac OS X 10.5&nbsp;</span><a name="cupsRemoveDest">cupsRemoveDest</a></h3>
896cc0e8 1928<p class="description">Remove a destination from the destination list.</p>
1929<p class="code">
1930int cupsRemoveDest (<br>
1931&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
1932&nbsp;&nbsp;&nbsp;&nbsp;const char *instance,<br>
1933&nbsp;&nbsp;&nbsp;&nbsp;int num_dests,<br>
1934&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_dest_t">cups_dest_t</a> **dests<br>
1935);</p>
1936<h4 class="parameters">Parameters</h4>
1937<dl>
1938<dt>name</dt>
1939<dd class="description">Destination name</dd>
1940<dt>instance</dt>
1941<dd class="description">Instance name or <code>NULL</code></dd>
1942<dt>num_dests</dt>
1943<dd class="description">Number of destinations</dd>
1944<dt>dests</dt>
1945<dd class="description">Destinations</dd>
1946</dl>
1947<h4 class="returnvalue">Return Value</h4>
1948<p class="description">New number of destinations</p>
1949<h4 class="discussion">Discussion</h4>
1950<p class="discussion">Removing a destination/instance does not delete the class or printer
1951queue, merely the lpoptions for that destination/instance. Use the
1952<a href="#cupsSetDests"><code>cupsSetDests</code></a> or <a href="#cupsSetDests2"><code>cupsSetDests2</code></a> functions to save the new
1953options for the user.
1954
1955</p>
373b3e5f 1956<h3 class="function"><span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span><a name="cupsRemoveOption">cupsRemoveOption</a></h3>
896cc0e8 1957<p class="description">Remove an option from an option array.</p>
1958<p class="code">
1959int cupsRemoveOption (<br>
1960&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
1961&nbsp;&nbsp;&nbsp;&nbsp;int num_options,<br>
1962&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_option_t">cups_option_t</a> **options<br>
1963);</p>
1964<h4 class="parameters">Parameters</h4>
1965<dl>
1966<dt>name</dt>
1967<dd class="description">Option name</dd>
1968<dt>num_options</dt>
1969<dd class="description">Current number of options</dd>
1970<dt>options</dt>
1971<dd class="description">Options</dd>
1972</dl>
1973<h4 class="returnvalue">Return Value</h4>
1974<p class="description">New number of options</p>
1975<h3 class="function"><a name="cupsServer">cupsServer</a></h3>
fab532bb 1976<p class="description">Return the hostname/address of the current server.</p>
896cc0e8 1977<p class="code">
1978const char *cupsServer (void);</p>
1979<h4 class="returnvalue">Return Value</h4>
1980<p class="description">Server name</p>
1981<h4 class="discussion">Discussion</h4>
fab532bb 1982<p class="discussion">The default server comes from the CUPS_SERVER environment variable, then the
1983~/.cups/client.conf file, and finally the /etc/cups/client.conf file. If not
1984set, the default is the local system - either &quot;localhost&quot; or a domain socket
1985path.<br>
1986<br>
1987The returned value can be a fully-qualified hostname, a numeric IPv4 or IPv6
1988address, or a domain socket pathname.<br>
1989<br>
1990Note: The current server is tracked separately for each thread in a program.
1991Multi-threaded programs that override the server via the
1992<a href="#cupsSetServer"><code>cupsSetServer</code></a> function need to do so in each thread for the same
1993server to be used.</p>
a1a2e89a 1994<h3 class="function"><span class="info">&nbsp;CUPS 1.5/Mac OS X 10.7&nbsp;</span><a name="cupsSetClientCertCB">cupsSetClientCertCB</a></h3>
22ac733b 1995<p class="description">Set the client certificate callback.</p>
1996<p class="code">
1997void cupsSetClientCertCB (<br>
1998&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_client_cert_cb_t">cups_client_cert_cb_t</a> cb,<br>
1999&nbsp;&nbsp;&nbsp;&nbsp;void *user_data<br>
2000);</p>
2001<h4 class="parameters">Parameters</h4>
2002<dl>
2003<dt>cb</dt>
2004<dd class="description">Callback function</dd>
2005<dt>user_data</dt>
2006<dd class="description">User data pointer</dd>
2007</dl>
2008<h4 class="discussion">Discussion</h4>
2009<p class="discussion">Pass <code>NULL</code> to restore the default callback.<br>
2010<br>
2011Note: The current certificate callback is tracked separately for each thread
2012in a program. Multi-threaded programs that override the callback need to do
2013so in each thread for the same callback to be used.
2014
2015</p>
a1a2e89a 2016<h3 class="function"><span class="info">&nbsp;CUPS 1.5/Mac OS X 10.7&nbsp;</span><a name="cupsSetCredentials">cupsSetCredentials</a></h3>
22ac733b 2017<p class="description">Set the default credentials to be used for SSL/TLS
2018connections.</p>
2019<p class="code">
2020int cupsSetCredentials (<br>
2021&nbsp;&nbsp;&nbsp;&nbsp;cups_array_t *credentials<br>
2022);</p>
2023<h4 class="parameters">Parameters</h4>
2024<dl>
2025<dt>credentials</dt>
2026<dd class="description">Array of credentials</dd>
2027</dl>
2028<h4 class="returnvalue">Return Value</h4>
2029<p class="description">Status of call (0 = success)</p>
2030<h4 class="discussion">Discussion</h4>
2031<p class="discussion">Note: The default credentials are tracked separately for each thread in a
2032program. Multi-threaded programs that override the setting need to do so in
2033each thread for the same setting to be used.
2034
2035</p>
373b3e5f 2036<h3 class="function"><span class="info">&nbsp;CUPS 1.3/Mac OS X 10.5&nbsp;</span><a name="cupsSetDefaultDest">cupsSetDefaultDest</a></h3>
896cc0e8 2037<p class="description">Set the default destination.</p>
2038<p class="code">
2039void cupsSetDefaultDest (<br>
2040&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
2041&nbsp;&nbsp;&nbsp;&nbsp;const char *instance,<br>
2042&nbsp;&nbsp;&nbsp;&nbsp;int num_dests,<br>
2043&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_dest_t">cups_dest_t</a> *dests<br>
2044);</p>
2045<h4 class="parameters">Parameters</h4>
2046<dl>
2047<dt>name</dt>
2048<dd class="description">Destination name</dd>
2049<dt>instance</dt>
2050<dd class="description">Instance name or <code>NULL</code></dd>
2051<dt>num_dests</dt>
2052<dd class="description">Number of destinations</dd>
2053<dt>dests</dt>
2054<dd class="description">Destinations</dd>
2055</dl>
2056<h3 class="function"><a name="cupsSetDests">cupsSetDests</a></h3>
2057<p class="description">Save the list of destinations for the default server.</p>
2058<p class="code">
2059void cupsSetDests (<br>
2060&nbsp;&nbsp;&nbsp;&nbsp;int num_dests,<br>
2061&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_dest_t">cups_dest_t</a> *dests<br>
2062);</p>
2063<h4 class="parameters">Parameters</h4>
2064<dl>
2065<dt>num_dests</dt>
2066<dd class="description">Number of destinations</dd>
2067<dt>dests</dt>
2068<dd class="description">Destinations</dd>
2069</dl>
2070<h4 class="discussion">Discussion</h4>
2071<p class="discussion">This function saves the destinations to /etc/cups/lpoptions when run
2072as root and ~/.cups/lpoptions when run as a normal user.</p>
373b3e5f 2073<h3 class="function"><span class="info">&nbsp;CUPS 1.1.21/Mac OS X 10.4&nbsp;</span><a name="cupsSetDests2">cupsSetDests2</a></h3>
896cc0e8 2074<p class="description">Save the list of destinations for the specified server.</p>
2075<p class="code">
2076int cupsSetDests2 (<br>
2077&nbsp;&nbsp;&nbsp;&nbsp;http_t *http,<br>
2078&nbsp;&nbsp;&nbsp;&nbsp;int num_dests,<br>
2079&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_dest_t">cups_dest_t</a> *dests<br>
2080);</p>
2081<h4 class="parameters">Parameters</h4>
2082<dl>
2083<dt>http</dt>
c73f649f 2084<dd class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></dd>
896cc0e8 2085<dt>num_dests</dt>
2086<dd class="description">Number of destinations</dd>
2087<dt>dests</dt>
2088<dd class="description">Destinations</dd>
2089</dl>
2090<h4 class="returnvalue">Return Value</h4>
2091<p class="description">0 on success, -1 on error</p>
2092<h4 class="discussion">Discussion</h4>
2093<p class="discussion">This function saves the destinations to /etc/cups/lpoptions when run
2094as root and ~/.cups/lpoptions when run as a normal user.
2095
2096</p>
2097<h3 class="function"><a name="cupsSetEncryption">cupsSetEncryption</a></h3>
2098<p class="description">Set the encryption preference.</p>
2099<p class="code">
2100void cupsSetEncryption (<br>
2101&nbsp;&nbsp;&nbsp;&nbsp;http_encryption_t e<br>
2102);</p>
2103<h4 class="parameters">Parameters</h4>
2104<dl>
2105<dt>e</dt>
2106<dd class="description">New encryption preference</dd>
2107</dl>
fab532bb 2108<h4 class="discussion">Discussion</h4>
2109<p class="discussion">The default encryption setting comes from the CUPS_ENCRYPTION
2110environment variable, then the ~/.cups/client.conf file, and finally the
2111/etc/cups/client.conf file. If not set, the default is
2112<code>HTTP_ENCRYPT_IF_REQUESTED</code>.<br>
2113<br>
2114Note: The current encryption setting is tracked separately for each thread
2115in a program. Multi-threaded programs that override the setting need to do
2116so in each thread for the same setting to be used.</p>
896cc0e8 2117<h3 class="function"><a name="cupsSetPasswordCB">cupsSetPasswordCB</a></h3>
2118<p class="description">Set the password callback for CUPS.</p>
2119<p class="code">
2120void cupsSetPasswordCB (<br>
2121&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_password_cb_t">cups_password_cb_t</a> cb<br>
2122);</p>
2123<h4 class="parameters">Parameters</h4>
2124<dl>
2125<dt>cb</dt>
2126<dd class="description">Callback function</dd>
2127</dl>
2128<h4 class="discussion">Discussion</h4>
fab532bb 2129<p class="discussion">Pass <code>NULL</code> to restore the default (console) password callback, which
2130reads the password from the console. Programs should call either this
2131function or <a href="#cupsSetPasswordCB2"><code>cupsSetPasswordCB2</code></a>, as only one callback can be registered
2132by a program per thread.<br>
2133<br>
2134Note: The current password callback is tracked separately for each thread
2135in a program. Multi-threaded programs that override the callback need to do
2136so in each thread for the same callback to be used.</p>
abc7086c 2137<h3 class="function"><span class="info">&nbsp;CUPS 1.4/Mac OS X 10.6&nbsp;</span><a name="cupsSetPasswordCB2">cupsSetPasswordCB2</a></h3>
8eb1383e 2138<p class="description">Set the advanced password callback for CUPS.</p>
2139<p class="code">
2140void cupsSetPasswordCB2 (<br>
2141&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_password_cb2_t">cups_password_cb2_t</a> cb,<br>
2142&nbsp;&nbsp;&nbsp;&nbsp;void *user_data<br>
2143);</p>
2144<h4 class="parameters">Parameters</h4>
2145<dl>
2146<dt>cb</dt>
2147<dd class="description">Callback function</dd>
2148<dt>user_data</dt>
2149<dd class="description">User data pointer</dd>
2150</dl>
2151<h4 class="discussion">Discussion</h4>
fab532bb 2152<p class="discussion">Pass <code>NULL</code> to restore the default (console) password callback, which
2153reads the password from the console. Programs should call either this
2154function or <a href="#cupsSetPasswordCB2"><code>cupsSetPasswordCB2</code></a>, as only one callback can be registered
2155by a program per thread.<br>
2156<br>
2157Note: The current password callback is tracked separately for each thread
2158in a program. Multi-threaded programs that override the callback need to do
2159so in each thread for the same callback to be used.
8eb1383e 2160
2161</p>
896cc0e8 2162<h3 class="function"><a name="cupsSetServer">cupsSetServer</a></h3>
fab532bb 2163<p class="description">Set the default server name and port.</p>
896cc0e8 2164<p class="code">
2165void cupsSetServer (<br>
2166&nbsp;&nbsp;&nbsp;&nbsp;const char *server<br>
2167);</p>
2168<h4 class="parameters">Parameters</h4>
2169<dl>
2170<dt>server</dt>
2171<dd class="description">Server name</dd>
2172</dl>
2173<h4 class="discussion">Discussion</h4>
2174<p class="discussion">The &quot;server&quot; string can be a fully-qualified hostname, a numeric
fab532bb 2175IPv4 or IPv6 address, or a domain socket pathname. Hostnames and numeric IP
2176addresses can be optionally followed by a colon and port number to override
2177the default port 631, e.g. &quot;hostname:8631&quot;. Pass <code>NULL</code> to restore the
2178default server name and port.<br>
2179<br>
2180Note: The current server is tracked separately for each thread in a program.
2181Multi-threaded programs that override the server need to do so in each
2182thread for the same server to be used.</p>
a1a2e89a 2183<h3 class="function"><span class="info">&nbsp;CUPS 1.5/Mac OS X 10.7&nbsp;</span><a name="cupsSetServerCertCB">cupsSetServerCertCB</a></h3>
22ac733b 2184<p class="description">Set the server certificate callback.</p>
2185<p class="code">
2186void cupsSetServerCertCB (<br>
2187&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_server_cert_cb_t">cups_server_cert_cb_t</a> cb,<br>
2188&nbsp;&nbsp;&nbsp;&nbsp;void *user_data<br>
2189);</p>
2190<h4 class="parameters">Parameters</h4>
2191<dl>
2192<dt>cb</dt>
2193<dd class="description">Callback function</dd>
2194<dt>user_data</dt>
2195<dd class="description">User data pointer</dd>
2196</dl>
2197<h4 class="discussion">Discussion</h4>
2198<p class="discussion">Pass <code>NULL</code> to restore the default callback.<br>
2199<br>
2200Note: The current credentials callback is tracked separately for each thread
2201in a program. Multi-threaded programs that override the callback need to do
2202so in each thread for the same callback to be used.
2203
2204</p>
896cc0e8 2205<h3 class="function"><a name="cupsSetUser">cupsSetUser</a></h3>
2206<p class="description">Set the default user name.</p>
2207<p class="code">
2208void cupsSetUser (<br>
2209&nbsp;&nbsp;&nbsp;&nbsp;const char *user<br>
2210);</p>
2211<h4 class="parameters">Parameters</h4>
2212<dl>
2213<dt>user</dt>
2214<dd class="description">User name</dd>
2215</dl>
2216<h4 class="discussion">Discussion</h4>
fab532bb 2217<p class="discussion">Pass <code>NULL</code> to restore the default user name.<br>
2218<br>
2219Note: The current user name is tracked separately for each thread in a
2220program. Multi-threaded programs that override the user name need to do so
2221in each thread for the same user name to be used.</p>
abc7086c 2222<h3 class="function"><span class="info">&nbsp;CUPS 1.4/Mac OS X 10.6&nbsp;</span><a name="cupsStartDocument">cupsStartDocument</a></h3>
896cc0e8 2223<p class="description">Add a document to a job created with cupsCreateJob().</p>
2224<p class="code">
2225http_status_t cupsStartDocument (<br>
2226&nbsp;&nbsp;&nbsp;&nbsp;http_t *http,<br>
2227&nbsp;&nbsp;&nbsp;&nbsp;const char *name,<br>
2228&nbsp;&nbsp;&nbsp;&nbsp;int job_id,<br>
2229&nbsp;&nbsp;&nbsp;&nbsp;const char *docname,<br>
2230&nbsp;&nbsp;&nbsp;&nbsp;const char *format,<br>
2231&nbsp;&nbsp;&nbsp;&nbsp;int last_document<br>
2232);</p>
2233<h4 class="parameters">Parameters</h4>
2234<dl>
2235<dt>http</dt>
c73f649f 2236<dd class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></dd>
896cc0e8 2237<dt>name</dt>
c73f649f 2238<dd class="description">Destination name</dd>
896cc0e8 2239<dt>job_id</dt>
2240<dd class="description">Job ID from <a href="#cupsCreateJob"><code>cupsCreateJob</code></a></dd>
2241<dt>docname</dt>
2242<dd class="description">Name of document</dd>
2243<dt>format</dt>
2244<dd class="description">MIME type or <code>CUPS_FORMAT_foo</code></dd>
2245<dt>last_document</dt>
2246<dd class="description">1 for last document in job, 0 otherwise</dd>
2247</dl>
2248<h4 class="returnvalue">Return Value</h4>
2249<p class="description">HTTP status of request</p>
2250<h4 class="discussion">Discussion</h4>
2251<p class="discussion">Use <a href="#cupsWriteRequestData"><code>cupsWriteRequestData</code></a> to write data for the document and
2252<a href="#cupsFinishDocument"><code>cupsFinishDocument</code></a> to finish the document and get the submission status.<br>
2253<br>
2254The MIME type constants <code>CUPS_FORMAT_AUTO</code>, <code>CUPS_FORMAT_PDF</code>,
2255<code>CUPS_FORMAT_POSTSCRIPT</code>, <code>CUPS_FORMAT_RAW</code>, and
2256<code>CUPS_FORMAT_TEXT</code> are provided for the &quot;format&quot; argument, although
2257any supported MIME type string can be supplied.
2258
2259</p>
2260<h3 class="function"><a name="cupsTempFd">cupsTempFd</a></h3>
2261<p class="description">Creates a temporary file.</p>
2262<p class="code">
2263int cupsTempFd (<br>
2264&nbsp;&nbsp;&nbsp;&nbsp;char *filename,<br>
2265&nbsp;&nbsp;&nbsp;&nbsp;int len<br>
2266);</p>
2267<h4 class="parameters">Parameters</h4>
2268<dl>
2269<dt>filename</dt>
2270<dd class="description">Pointer to buffer</dd>
2271<dt>len</dt>
2272<dd class="description">Size of buffer</dd>
2273</dl>
2274<h4 class="returnvalue">Return Value</h4>
2275<p class="description">New file descriptor or -1 on error</p>
2276<h4 class="discussion">Discussion</h4>
2277<p class="discussion">The temporary filename is returned in the filename buffer.
2278The temporary file is opened for reading and writing.</p>
2279<h3 class="function"><span class="info">&nbsp;DEPRECATED&nbsp;</span><a name="cupsTempFile">cupsTempFile</a></h3>
2280<p class="description">Generates a temporary filename.</p>
2281<p class="code">
2282char *cupsTempFile (<br>
2283&nbsp;&nbsp;&nbsp;&nbsp;char *filename,<br>
2284&nbsp;&nbsp;&nbsp;&nbsp;int len<br>
2285);</p>
2286<h4 class="parameters">Parameters</h4>
2287<dl>
2288<dt>filename</dt>
2289<dd class="description">Pointer to buffer</dd>
2290<dt>len</dt>
2291<dd class="description">Size of buffer</dd>
2292</dl>
2293<h4 class="returnvalue">Return Value</h4>
c73f649f 2294<p class="description">Filename or <code>NULL</code> on error</p>
896cc0e8 2295<h4 class="discussion">Discussion</h4>
2296<p class="discussion">The temporary filename is returned in the filename buffer.
2297This function is deprecated - use <a href="#cupsTempFd"><code>cupsTempFd</code></a> or
2298<a href="#cupsTempFile2"><code>cupsTempFile2</code></a> instead.
2299
2300</p>
373b3e5f 2301<h3 class="function"><span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span><a name="cupsTempFile2">cupsTempFile2</a></h3>
896cc0e8 2302<p class="description">Creates a temporary CUPS file.</p>
2303<p class="code">
2304cups_file_t *cupsTempFile2 (<br>
2305&nbsp;&nbsp;&nbsp;&nbsp;char *filename,<br>
2306&nbsp;&nbsp;&nbsp;&nbsp;int len<br>
2307);</p>
2308<h4 class="parameters">Parameters</h4>
2309<dl>
2310<dt>filename</dt>
2311<dd class="description">Pointer to buffer</dd>
2312<dt>len</dt>
2313<dd class="description">Size of buffer</dd>
2314</dl>
2315<h4 class="returnvalue">Return Value</h4>
c73f649f 2316<p class="description">CUPS file or <code>NULL</code> on error</p>
896cc0e8 2317<h4 class="discussion">Discussion</h4>
2318<p class="discussion">The temporary filename is returned in the filename buffer.
2319The temporary file is opened for writing.
2320
2321</p>
2322<h3 class="function"><a name="cupsUser">cupsUser</a></h3>
2323<p class="description">Return the current user's name.</p>
2324<p class="code">
2325const char *cupsUser (void);</p>
2326<h4 class="returnvalue">Return Value</h4>
2327<p class="description">User name</p>
fab532bb 2328<h4 class="discussion">Discussion</h4>
2329<p class="discussion">Note: The current user name is tracked separately for each thread in a
2330program. Multi-threaded programs that override the user name with the
2331<a href="#cupsSetUser"><code>cupsSetUser</code></a> function need to do so in each thread for the same user
2332name to be used.</p>
896cc0e8 2333<h2 class="title"><a name="TYPES">Data Types</a></h2>
a1a2e89a 2334<h3 class="typedef"><span class="info">&nbsp;CUPS 1.5/Mac OS X 10.7&nbsp;</span><a name="cups_client_cert_cb_t">cups_client_cert_cb_t</a></h3>
22ac733b 2335<p class="description">Client credentials callback </p>
2336<p class="code">
2337typedef int (*cups_client_cert_cb_t)(http_t *http, void *tls, cups_array_t *distinguished_names, void *user_data);
2338</p>
896cc0e8 2339<h3 class="typedef"><a name="cups_dest_t">cups_dest_t</a></h3>
2340<p class="description">Destination</p>
2341<p class="code">
2342typedef struct <a href="#cups_dest_s">cups_dest_s</a> cups_dest_t;
2343</p>
abc7086c 2344<h3 class="typedef"><span class="info">&nbsp;CUPS 1.4/Mac OS X 10.6&nbsp;</span><a name="cups_device_cb_t">cups_device_cb_t</a></h3>
ed12a8ec 2345<p class="description">Device callback </p>
2346<p class="code">
50bcef02 2347typedef void (*cups_device_cb_t)(const char *device_class, const char *device_id, const char *device_info, const char *device_make_and_model, const char *device_uri, const char *device_location, void *user_data);
ed12a8ec 2348</p>
896cc0e8 2349<h3 class="typedef"><a name="cups_job_t">cups_job_t</a></h3>
2350<p class="description">Job</p>
2351<p class="code">
2352typedef struct <a href="#cups_job_s">cups_job_s</a> cups_job_t;
2353</p>
2354<h3 class="typedef"><a name="cups_option_t">cups_option_t</a></h3>
2355<p class="description">Printer Options</p>
2356<p class="code">
2357typedef struct <a href="#cups_option_s">cups_option_s</a> cups_option_t;
2358</p>
abc7086c 2359<h3 class="typedef"><span class="info">&nbsp;CUPS 1.4/Mac OS X 10.6&nbsp;</span><a name="cups_password_cb2_t">cups_password_cb2_t</a></h3>
8eb1383e 2360<p class="description">New password callback </p>
2361<p class="code">
2362typedef const char *(*cups_password_cb2_t)(const char *prompt, http_t *http, const char *method, const char *resource, void *user_data);
2363</p>
896cc0e8 2364<h3 class="typedef"><a name="cups_password_cb_t">cups_password_cb_t</a></h3>
2365<p class="description">Password callback</p>
2366<p class="code">
ed12a8ec 2367typedef const char *(*cups_password_cb_t)(const char *prompt);
896cc0e8 2368</p>
2369<h3 class="typedef"><a name="cups_ptype_t">cups_ptype_t</a></h3>
2370<p class="description">Printer type/capability bits</p>
2371<p class="code">
2372typedef unsigned cups_ptype_t;
2373</p>
a1a2e89a 2374<h3 class="typedef"><span class="info">&nbsp;CUPS 1.5/Mac OS X 10.7&nbsp;</span><a name="cups_server_cert_cb_t">cups_server_cert_cb_t</a></h3>
22ac733b 2375<p class="description">Server credentials callback </p>
2376<p class="code">
2377typedef int (*cups_server_cert_cb_t)(http_t *http, void *tls, cups_array_t *certs, void *user_data);
2378</p>
896cc0e8 2379<h2 class="title"><a name="STRUCTURES">Structures</a></h2>
2380<h3 class="struct"><a name="cups_dest_s">cups_dest_s</a></h3>
2381<p class="description">Destination</p>
2382<p class="code">struct cups_dest_s {<br>
2383&nbsp;&nbsp;&nbsp;&nbsp;char *name, *instance;<br>
2384&nbsp;&nbsp;&nbsp;&nbsp;int is_default;<br>
2385&nbsp;&nbsp;&nbsp;&nbsp;int num_options;<br>
2386&nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_option_t">cups_option_t</a> *options;<br>
2387};</p>
2388<h4 class="members">Members</h4>
2389<dl>
2390<dt>instance </dt>
2391<dd class="description">Local instance name or NULL</dd>
2392<dt>is_default </dt>
2393<dd class="description">Is this printer the default?</dd>
2394<dt>num_options </dt>
2395<dd class="description">Number of options</dd>
2396<dt>options </dt>
2397<dd class="description">Options</dd>
2398</dl>
2399<h3 class="struct"><a name="cups_job_s">cups_job_s</a></h3>
2400<p class="description">Job</p>
2401<p class="code">struct cups_job_s {<br>
2402&nbsp;&nbsp;&nbsp;&nbsp;time_t completed_time;<br>
2403&nbsp;&nbsp;&nbsp;&nbsp;time_t creation_time;<br>
2404&nbsp;&nbsp;&nbsp;&nbsp;char *dest;<br>
2405&nbsp;&nbsp;&nbsp;&nbsp;char *format;<br>
2406&nbsp;&nbsp;&nbsp;&nbsp;int id;<br>
2407&nbsp;&nbsp;&nbsp;&nbsp;int priority;<br>
2408&nbsp;&nbsp;&nbsp;&nbsp;time_t processing_time;<br>
2409&nbsp;&nbsp;&nbsp;&nbsp;int size;<br>
2410&nbsp;&nbsp;&nbsp;&nbsp;ipp_jstate_t state;<br>
2411&nbsp;&nbsp;&nbsp;&nbsp;char *title;<br>
2412&nbsp;&nbsp;&nbsp;&nbsp;char *user;<br>
2413};</p>
2414<h4 class="members">Members</h4>
2415<dl>
2416<dt>completed_time </dt>
2417<dd class="description">Time the job was completed</dd>
2418<dt>creation_time </dt>
2419<dd class="description">Time the job was created</dd>
2420<dt>dest </dt>
2421<dd class="description">Printer or class name</dd>
2422<dt>format </dt>
2423<dd class="description">Document format</dd>
2424<dt>id </dt>
2425<dd class="description">The job ID</dd>
2426<dt>priority </dt>
2427<dd class="description">Priority (1-100)</dd>
2428<dt>processing_time </dt>
2429<dd class="description">Time the job was processed</dd>
2430<dt>size </dt>
2431<dd class="description">Size in kilobytes</dd>
2432<dt>state </dt>
2433<dd class="description">Job state</dd>
2434<dt>title </dt>
2435<dd class="description">Title/job name</dd>
2436<dt>user </dt>
2437<dd class="description">User the submitted the job</dd>
2438</dl>
2439<h3 class="struct"><a name="cups_option_s">cups_option_s</a></h3>
2440<p class="description">Printer Options</p>
2441<p class="code">struct cups_option_s {<br>
2442&nbsp;&nbsp;&nbsp;&nbsp;char *name;<br>
2443&nbsp;&nbsp;&nbsp;&nbsp;char *value;<br>
2444};</p>
2445<h4 class="members">Members</h4>
2446<dl>
2447<dt>name </dt>
2448<dd class="description">Name of option</dd>
2449<dt>value </dt>
2450<dd class="description">Value of option</dd>
2451</dl>
72c79ac9 2452<h2 class="title"><a name="VARIABLES">Variables</a></h2>
2453<h3 class="variable"><a name="CF_RETURNS_RETAINED">CF_RETURNS_RETAINED</a></h3>
2454<p class="description">Get the Apple language identifier associated with a
2455locale ID.</p>
2456<p class="code">const char *locale) CF_RETURNS_RETAINED;</p>
896cc0e8 2457<h2 class="title"><a name="ENUMERATIONS">Constants</a></h2>
2458<h3 class="enumeration"><a name="cups_ptype_e">cups_ptype_e</a></h3>
2459<p class="description">Printer type/capability bit constants</p>
2460<h4 class="constants">Constants</h4>
2461<dl>
373b3e5f 2462<dt>CUPS_PRINTER_AUTHENTICATED <span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span></dt>
896cc0e8 2463<dd class="description">Printer requires authentication </dd>
2464<dt>CUPS_PRINTER_BIND </dt>
2465<dd class="description">Can bind output</dd>
2466<dt>CUPS_PRINTER_BW </dt>
2467<dd class="description">Can do B&amp;W printing</dd>
2468<dt>CUPS_PRINTER_CLASS </dt>
2469<dd class="description">Printer class</dd>
2470<dt>CUPS_PRINTER_COLLATE </dt>
2471<dd class="description">Can collage copies</dd>
2472<dt>CUPS_PRINTER_COLOR </dt>
2473<dd class="description">Can do color printing</dd>
373b3e5f 2474<dt>CUPS_PRINTER_COMMANDS <span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span></dt>
896cc0e8 2475<dd class="description">Printer supports maintenance commands </dd>
2476<dt>CUPS_PRINTER_COPIES </dt>
2477<dd class="description">Can do copies</dd>
2478<dt>CUPS_PRINTER_COVER </dt>
2479<dd class="description">Can cover output</dd>
2480<dt>CUPS_PRINTER_DEFAULT </dt>
2481<dd class="description">Default printer on network</dd>
373b3e5f 2482<dt>CUPS_PRINTER_DELETE <span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span></dt>
896cc0e8 2483<dd class="description">Delete printer </dd>
373b3e5f 2484<dt>CUPS_PRINTER_DISCOVERED <span class="info">&nbsp;CUPS 1.3/Mac OS X 10.5&nbsp;</span></dt>
896cc0e8 2485<dd class="description">Printer was automatically discovered and added </dd>
2486<dt>CUPS_PRINTER_DUPLEX </dt>
2487<dd class="description">Can do duplexing</dd>
2488<dt>CUPS_PRINTER_FAX </dt>
2489<dd class="description">Fax queue</dd>
2490<dt>CUPS_PRINTER_IMPLICIT </dt>
2491<dd class="description">Implicit class</dd>
2492<dt>CUPS_PRINTER_LARGE </dt>
2493<dd class="description">Can do D/E/A1/A0</dd>
2494<dt>CUPS_PRINTER_LOCAL </dt>
2495<dd class="description">Local printer or class</dd>
2496<dt>CUPS_PRINTER_MEDIUM </dt>
2497<dd class="description">Can do Tabloid/B/C/A3/A2</dd>
abc7086c 2498<dt>CUPS_PRINTER_MFP <span class="info">&nbsp;CUPS 1.4/Mac OS X 10.6&nbsp;</span></dt>
8eb1383e 2499<dd class="description">Printer with scanning capabilities </dd>
373b3e5f 2500<dt>CUPS_PRINTER_NOT_SHARED <span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span></dt>
896cc0e8 2501<dd class="description">Printer is not shared </dd>
2502<dt>CUPS_PRINTER_PUNCH </dt>
2503<dd class="description">Can punch output</dd>
2504<dt>CUPS_PRINTER_REJECTING </dt>
2505<dd class="description">Printer is rejecting jobs</dd>
2506<dt>CUPS_PRINTER_REMOTE </dt>
2507<dd class="description">Remote printer or class</dd>
abc7086c 2508<dt>CUPS_PRINTER_SCANNER <span class="info">&nbsp;CUPS 1.4/Mac OS X 10.6&nbsp;</span></dt>
8eb1383e 2509<dd class="description">Scanner-only device </dd>
896cc0e8 2510<dt>CUPS_PRINTER_SMALL </dt>
2511<dd class="description">Can do Letter/Legal/A4</dd>
2512<dt>CUPS_PRINTER_SORT </dt>
2513<dd class="description">Can sort output</dd>
2514<dt>CUPS_PRINTER_STAPLE </dt>
2515<dd class="description">Can staple output</dd>
2516<dt>CUPS_PRINTER_VARIABLE </dt>
2517<dd class="description">Can do variable sizes</dd>
2518</dl>
2519</div>
2520</body>
2521</html>