cups/util.c

   1 /*
   2  * "$Id: util.c 7850 2008-08-20 00:07:25Z mike $"
   3  *
   4  *   Printing utilities for the Common UNIX Printing System (CUPS).
   5  *
   6  *   Copyright 2007-2009 by Apple Inc.
   7  *   Copyright 1997-2006 by Easy Software Products.
   8  *
   9  *   These coded instructions, statements, and computer programs are the
  10  *   property of Apple Inc. and are protected by Federal copyright
  11  *   law.  Distribution and use rights are outlined in the file "LICENSE.txt"
  12  *   which should have been included with this file.  If this file is
  13  *   file is missing or damaged, see the license at "http://www.cups.org/".
  14  *
  15  *   This file is subject to the Apple OS-Developed Software exception.
  16  *
  17  * Contents:
  18  *
  19  *   cupsCancelJob()        - Cancel a print job on the default server.
  20  *   cupsCancelJob2()       - Cancel or purge a print job.
  21  *   cupsCreateJob()        - Create an empty job.
  22  *   cupsFinishDocument()   - Finish sending a document.
  23  *   cupsFreeJobs()         - Free memory used by job data.
  24  *   cupsGetClasses()       - Get a list of printer classes from the default
  25  *                            server.
  26  *   cupsGetDefault()       - Get the default printer or class for the default
  27  *                            server.
  28  *   cupsGetDefault2()      - Get the default printer or class for the specified
  29  *                            server.
  30  *   cupsGetJobs()          - Get the jobs from the default server.
  31  *   cupsGetJobs2()         - Get the jobs from the specified server.
  32  *   cupsGetPPD()           - Get the PPD file for a printer on the default
  33  *                            server.
  34  *   cupsGetPPD2()          - Get the PPD file for a printer from the specified
  35  *                            server.
  36  *   cupsGetPPD3()          - Get the PPD file for a printer on the specified
  37  *                            server if it has changed.
  38  *   cupsGetPrinters()      - Get a list of printers from the default server.
  39  *   cupsGetServerPPD()     - Get an available PPD file from the server.
  40  *   cupsLastError()        - Return the last IPP status code.
  41  *   cupsLastErrorString()  - Return the last IPP status-message.
  42  *   cupsPrintFile()        - Print a file to a printer or class on the default
  43  *                            server.
  44  *   cupsPrintFile2()       - Print a file to a printer or class on the
  45  *                            specified server.
  46  *   cupsPrintFiles()       - Print one or more files to a printer or class on
  47  *                            the default server.
  48  *   cupsPrintFiles2()      - Print one or more files to a printer or class on
  49  *                            the specified server.
  50  *   cupsStartDocument()    - Add a document to a job created with
  51  *                            cupsCreateJob().
  52  *   _cupsConnect()         - Get the default server connection...
  53  *   cups_get_printer_uri() - Get the printer-uri-supported attribute for the
  54  *                            first printer in a class.
  55  */
  56
  57 /*
  58  * Include necessary headers...
  59  */
  60
  61 #include "globals.h"
  62 #include "debug.h"
  63 #include <stdlib.h>
  64 #include <errno.h>
  65 #include <fcntl.h>
  66 #include <sys/stat.h>
  67 #if defined(WIN32) || defined(__EMX__)
  68 #  include <io.h>
  69 #else
  70 #  include <unistd.h>
  71 #endif /* WIN32 || __EMX__ */
  72
  73
  74 /*
  75  * Local functions...
  76  */
  77
  78 static int      cups_get_printer_uri(http_t *http, const char *name,
  79                                      char *host, int hostsize, int *port,
  80                                      char *resource, int resourcesize,
  81                                      int depth);
  82
  83
  84 /*
  85  * 'cupsCancelJob()' - Cancel a print job on the default server.
  86  *
  87  * Pass @code CUPS_JOBID_ALL@ to cancel all jobs or @code CUPS_JOBID_CURRENT@
  88  * to cancel the current job on the named destination.
  89  *
  90  * Use the @link cupsLastError@ and @link cupsLastErrorString@ functions to get
  91  * the cause of any failure.
  92  */
  93
  94 int                                     /* O - 1 on success, 0 on failure */
  95 cupsCancelJob(const char *name,         /* I - Name of printer or class */
  96               int        job_id)        /* I - Job ID, @code CUPS_JOBID_CURRENT@ for the current job, or @code CUPS_JOBID_ALL@ for all jobs */
  97 {
  98   return (cupsCancelJob2(CUPS_HTTP_DEFAULT, name, job_id, 0)
  99               < IPP_REDIRECTION_OTHER_SITE);
 100 }
 101
 102
 103 /*
 104  * 'cupsCancelJob2()' - Cancel or purge a print job.
 105  *
 106  * Canceled jobs remain in the job history while purged jobs are removed
 107  * from the job history.
 108  *
 109  * Pass @code CUPS_JOBID_ALL@ to cancel all jobs or @code CUPS_JOBID_CURRENT@
 110  * to cancel the current job on the named destination.
 111  *
 112  * Use the @link cupsLastError@ and @link cupsLastErrorString@ functions to get
 113  * the cause of any failure.
 114  *
 115  * @since CUPS 1.4/Mac OS X 10.6@
 116  */
 117
 118 ipp_status_t                            /* O - IPP status */
 119 cupsCancelJob2(http_t     *http,        /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
 120                const char *name,        /* I - Name of printer or class */
 121                int        job_id,       /* I - Job ID, @code CUPS_JOBID_CURRENT@ for the current job, or @code CUPS_JOBID_ALL@ for all jobs */
 122                int        purge)        /* I - 1 to purge, 0 to cancel */
 123 {
 124   char          uri[HTTP_MAX_URI];      /* Job/printer URI */
 125   ipp_t         *request;               /* IPP request */
 126
 127
 128  /*
 129   * Range check input...
 130   */
 131
 132   if (job_id < -1 || (!name && job_id == 0))
 133   {
 134     _cupsSetError(IPP_INTERNAL_ERROR, strerror(EINVAL), 0);
 135     return (0);
 136   }
 137
 138  /*
 139   * Connect to the default server as needed...
 140   */
 141
 142   if (!http)
 143     if ((http = _cupsConnect()) == NULL)
 144       return (IPP_SERVICE_UNAVAILABLE);
 145
 146  /*
 147   * Build an IPP_CANCEL_JOB or IPP_PURGE_JOBS request, which requires the following
 148   * attributes:
 149   *
 150   *    attributes-charset
 151   *    attributes-natural-language
 152   *    job-uri or printer-uri + job-id
 153   *    requesting-user-name
 154   *    [purge-job] or [purge-jobs]
 155   */
 156
 157   request = ippNewRequest(job_id < 0 ? IPP_PURGE_JOBS : IPP_CANCEL_JOB);
 158
 159   if (name)
 160   {
 161     httpAssembleURIf(HTTP_URI_CODING_ALL, uri, sizeof(uri), "ipp", NULL,
 162                      "localhost", ippPort(), "/printers/%s", name);
 163
 164     ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL,
 165                  uri);
 166     ippAddInteger(request, IPP_TAG_OPERATION, IPP_TAG_INTEGER, "job-id",
 167                   job_id);
 168   }
 169   else if (job_id > 0)
 170   {
 171     snprintf(uri, sizeof(uri), "ipp://localhost/jobs/%d", job_id);
 172
 173     ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
 174   }
 175
 176   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
 177                NULL, cupsUser());
 178
 179   if (purge && job_id >= 0)
 180     ippAddBoolean(request, IPP_TAG_OPERATION, "purge-job", 1);
 181   else if (!purge && job_id < 0)
 182     ippAddBoolean(request, IPP_TAG_OPERATION, "purge-jobs", 0);
 183
 184  /*
 185   * Do the request...
 186   */
 187
 188   ippDelete(cupsDoRequest(http, request, "/jobs/"));
 189
 190   return (cupsLastError());
 191 }
 192
 193
 194 /*
 195  * 'cupsCreateJob()' - Create an empty job for streaming.
 196  *
 197  * Use this function when you want to stream print data using the
 198  * @link cupsStartDocument@, @link cupsWriteRequestData@, and
 199  * @link cupsFinishDocument@ functions.  If you have one or more files to
 200  * print, use the @link cupsPrintFile2@ or @link cupsPrintFiles2@ function
 201  * instead.
 202  *
 203  * @since CUPS 1.4/Mac OS X 10.6@
 204  */
 205
 206 int                                     /* O - Job ID or 0 on error */
 207 cupsCreateJob(
 208     http_t        *http,                /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
 209     const char    *name,                /* I - Destination name */
 210     const char    *title,               /* I - Title of job */
 211     int           num_options,          /* I - Number of options */
 212     cups_option_t *options)             /* I - Options */
 213 {
 214   char          printer_uri[1024],      /* Printer URI */
 215                 resource[1024];         /* Printer resource */
 216   ipp_t         *request,               /* Create-Job request */
 217                 *response;              /* Create-Job response */
 218   ipp_attribute_t *attr;                /* job-id attribute */
 219   int           job_id = 0;             /* job-id value */
 220
 221
 222   DEBUG_printf(("cupsCreateJob(http=%p, name=\"%s\", title=\"%s\", "
 223                 "num_options=%d, options=%p)",
 224                 http, name, title, num_options, options));
 225
 226  /*
 227   * Range check input...
 228   */
 229
 230   if (!name)
 231   {
 232     _cupsSetError(IPP_INTERNAL_ERROR, strerror(EINVAL), 0);
 233     return (0);
 234   }
 235
 236  /*
 237   * Build a Create-Job request...
 238   */
 239
 240   if ((request = ippNewRequest(IPP_CREATE_JOB)) == NULL)
 241   {
 242     _cupsSetError(IPP_INTERNAL_ERROR, strerror(ENOMEM), 0);
 243     return (0);
 244   }
 245
 246   httpAssembleURIf(HTTP_URI_CODING_ALL, printer_uri, sizeof(printer_uri), "ipp",
 247                    NULL, "localhost", ippPort(), "/printers/%s", name);
 248   snprintf(resource, sizeof(resource), "/printers/%s", name);
 249
 250   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri",
 251                NULL, printer_uri);
 252   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
 253                NULL, cupsUser());
 254   if (title)
 255     ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "job-name", NULL,
 256                  title);
 257   cupsEncodeOptions(request, num_options, options);
 258
 259  /*
 260   * Send the request and get the job-id...
 261   */
 262
 263   response = cupsDoRequest(http, request, resource);
 264
 265   if ((attr = ippFindAttribute(response, "job-id", IPP_TAG_INTEGER)) != NULL)
 266     job_id = attr->values[0].integer;
 267
 268   ippDelete(response);
 269
 270  /*
 271   * Return it...
 272   */
 273
 274   return (job_id);
 275 }
 276
 277
 278 /*
 279  * 'cupsFinishDocument()' - Finish sending a document.
 280  *
 281  * The document must have been started using @link cupsStartDocument@.
 282  *
 283  * @since CUPS 1.4/Mac OS X 10.6@
 284  */
 285
 286 ipp_status_t                            /* O - Status of document submission */
 287 cupsFinishDocument(http_t     *http,    /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
 288                    const char *name)    /* I - Destination name */
 289 {
 290   char  resource[1024];                 /* Printer resource */
 291
 292
 293   snprintf(resource, sizeof(resource), "/printers/%s", name);
 294
 295   ippDelete(cupsGetResponse(http, resource));
 296
 297   return (cupsLastError());
 298 }
 299
 300
 301 /*
 302  * 'cupsFreeJobs()' - Free memory used by job data.
 303  */
 304
 305 void
 306 cupsFreeJobs(int        num_jobs,       /* I - Number of jobs */
 307              cups_job_t *jobs)          /* I - Jobs */
 308 {
 309   int           i;                      /* Looping var */
 310   cups_job_t    *job;                   /* Current job */
 311
 312
 313   if (num_jobs <= 0 || !jobs)
 314     return;
 315
 316   for (i = num_jobs, job = jobs; i > 0; i --, job ++)
 317   {
 318     _cupsStrFree(job->dest);
 319     _cupsStrFree(job->user);
 320     _cupsStrFree(job->format);
 321     _cupsStrFree(job->title);
 322   }
 323
 324   free(jobs);
 325 }
 326
 327
 328 /*
 329  * 'cupsGetClasses()' - Get a list of printer classes from the default server.
 330  *
 331  * This function is deprecated - use @link cupsGetDests@ instead.
 332  *
 333  * @deprecated@
 334  */
 335
 336 int                                     /* O - Number of classes */
 337 cupsGetClasses(char ***classes)         /* O - Classes */
 338 {
 339   int           n;                      /* Number of classes */
 340   ipp_t         *request,               /* IPP Request */
 341                 *response;              /* IPP Response */
 342   ipp_attribute_t *attr;                /* Current attribute */
 343   char          **temp;                 /* Temporary pointer */
 344   http_t        *http;                  /* Connection to server */
 345
 346
 347   if (!classes)
 348   {
 349     _cupsSetError(IPP_INTERNAL_ERROR, strerror(EINVAL), 0);
 350
 351     return (0);
 352   }
 353
 354   *classes = NULL;
 355
 356   if ((http = _cupsConnect()) == NULL)
 357     return (0);
 358
 359  /*
 360   * Build a CUPS_GET_CLASSES request, which requires the following
 361   * attributes:
 362   *
 363   *    attributes-charset
 364   *    attributes-natural-language
 365   *    requested-attributes
 366   */
 367
 368   request = ippNewRequest(CUPS_GET_CLASSES);
 369
 370   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
 371                "requested-attributes", NULL, "printer-name");
 372
 373  /*
 374   * Do the request and get back a response...
 375   */
 376
 377   n = 0;
 378
 379   if ((response = cupsDoRequest(http, request, "/")) != NULL)
 380   {
 381     for (attr = response->attrs; attr != NULL; attr = attr->next)
 382       if (attr->name != NULL &&
 383           strcasecmp(attr->name, "printer-name") == 0 &&
 384           attr->value_tag == IPP_TAG_NAME)
 385       {
 386         if (n == 0)
 387           temp = malloc(sizeof(char *));
 388         else
 389           temp = realloc(*classes, sizeof(char *) * (n + 1));
 390
 391         if (temp == NULL)
 392         {
 393          /*
 394           * Ran out of memory!
 395           */
 396
 397           while (n > 0)
 398           {
 399             n --;
 400             free((*classes)[n]);
 401           }
 402
 403           free(*classes);
 404           ippDelete(response);
 405           return (0);
 406         }
 407
 408         *classes = temp;
 409         temp[n]  = strdup(attr->values[0].string.text);
 410         n ++;
 411       }
 412
 413     ippDelete(response);
 414   }
 415
 416   return (n);
 417 }
 418
 419
 420 /*
 421  * 'cupsGetDefault()' - Get the default printer or class for the default server.
 422  *
 423  * This function returns the default printer or class as defined by
 424  * the LPDEST or PRINTER environment variables. If these environment
 425  * variables are not set, the server default destination is returned.
 426  * Applications should use the @link cupsGetDests@ and @link cupsGetDest@
 427  * functions to get the user-defined default printer, as this function does
 428  * not support the lpoptions-defined default printer.
 429  */
 430
 431 const char *                            /* O - Default printer or @code NULL@ */
 432 cupsGetDefault(void)
 433 {
 434  /*
 435   * Return the default printer...
 436   */
 437
 438   return (cupsGetDefault2(CUPS_HTTP_DEFAULT));
 439 }
 440
 441
 442 /*
 443  * 'cupsGetDefault2()' - Get the default printer or class for the specified server.
 444  *
 445  * This function returns the default printer or class as defined by
 446  * the LPDEST or PRINTER environment variables. If these environment
 447  * variables are not set, the server default destination is returned.
 448  * Applications should use the @link cupsGetDests@ and @link cupsGetDest@
 449  * functions to get the user-defined default printer, as this function does
 450  * not support the lpoptions-defined default printer.
 451  *
 452  * @since CUPS 1.1.21/Mac OS X 10.4@
 453  */
 454
 455 const char *                            /* O - Default printer or @code NULL@ */
 456 cupsGetDefault2(http_t *http)           /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
 457 {
 458   ipp_t         *request,               /* IPP Request */
 459                 *response;              /* IPP Response */
 460   ipp_attribute_t *attr;                /* Current attribute */
 461   _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */
 462
 463
 464  /*
 465   * See if we have a user default printer set...
 466   */
 467
 468   if (_cupsUserDefault(cg->def_printer, sizeof(cg->def_printer)))
 469     return (cg->def_printer);
 470
 471  /*
 472   * Connect to the server as needed...
 473   */
 474
 475   if (!http)
 476     if ((http = _cupsConnect()) == NULL)
 477       return (NULL);
 478
 479  /*
 480   * Build a CUPS_GET_DEFAULT request, which requires the following
 481   * attributes:
 482   *
 483   *    attributes-charset
 484   *    attributes-natural-language
 485   */
 486
 487   request = ippNewRequest(CUPS_GET_DEFAULT);
 488
 489  /*
 490   * Do the request and get back a response...
 491   */
 492
 493   if ((response = cupsDoRequest(http, request, "/")) != NULL)
 494   {
 495     if ((attr = ippFindAttribute(response, "printer-name",
 496                                  IPP_TAG_NAME)) != NULL)
 497     {
 498       strlcpy(cg->def_printer, attr->values[0].string.text,
 499               sizeof(cg->def_printer));
 500       ippDelete(response);
 501       return (cg->def_printer);
 502     }
 503
 504     ippDelete(response);
 505   }
 506
 507   return (NULL);
 508 }
 509
 510
 511 /*
 512  * 'cupsGetJobs()' - Get the jobs from the default server.
 513  *
 514  * A "whichjobs" value of @code CUPS_WHICHJOBS_ALL@ returns all jobs regardless
 515  * of state, while @code CUPS_WHICHJOBS_ACTIVE@ returns jobs that are
 516  * pending, processing, or held and @code CUPS_WHICHJOBS_COMPLETED@ returns
 517  * jobs that are stopped, canceled, aborted, or completed.
 518  */
 519
 520 int                                     /* O - Number of jobs */
 521 cupsGetJobs(cups_job_t **jobs,          /* O - Job data */
 522             const char *name,           /* I - @code NULL@ = all destinations, otherwise show jobs for named destination */
 523             int        myjobs,          /* I - 0 = all users, 1 = mine */
 524             int        whichjobs)       /* I - @code CUPS_WHICHJOBS_ALL@, @code CUPS_WHICHJOBS_ACTIVE@, or @code CUPS_WHICHJOBS_COMPLETED@ */
 525 {
 526  /*
 527   * Return the jobs...
 528   */
 529
 530   return (cupsGetJobs2(CUPS_HTTP_DEFAULT, jobs, name, myjobs, whichjobs));
 531 }
 532
 533
 534
 535 /*
 536  * 'cupsGetJobs2()' - Get the jobs from the specified server.
 537  *
 538  * A "whichjobs" value of @code CUPS_WHICHJOBS_ALL@ returns all jobs regardless
 539  * of state, while @code CUPS_WHICHJOBS_ACTIVE@ returns jobs that are
 540  * pending, processing, or held and @code CUPS_WHICHJOBS_COMPLETED@ returns
 541  * jobs that are stopped, canceled, aborted, or completed.
 542  *
 543  * @since CUPS 1.1.21/Mac OS X 10.4@
 544  */
 545
 546 int                                     /* O - Number of jobs */
 547 cupsGetJobs2(http_t     *http,          /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
 548              cups_job_t **jobs,         /* O - Job data */
 549              const char *name,          /* I - @code NULL@ = all destinations, otherwise show jobs for named destination */
 550              int        myjobs,         /* I - 0 = all users, 1 = mine */
 551              int        whichjobs)      /* I - @code CUPS_WHICHJOBS_ALL@, @code CUPS_WHICHJOBS_ACTIVE@, or @code CUPS_WHICHJOBS_COMPLETED@ */
 552 {
 553   int           n;                      /* Number of jobs */
 554   ipp_t         *request,               /* IPP Request */
 555                 *response;              /* IPP Response */
 556   ipp_attribute_t *attr;                /* Current attribute */
 557   cups_job_t    *temp;                  /* Temporary pointer */
 558   int           id,                     /* job-id */
 559                 priority,               /* job-priority */
 560                 size;                   /* job-k-octets */
 561   ipp_jstate_t  state;                  /* job-state */
 562   time_t        completed_time,         /* time-at-completed */
 563                 creation_time,          /* time-at-creation */
 564                 processing_time;        /* time-at-processing */
 565   const char    *dest,                  /* job-printer-uri */
 566                 *format,                /* document-format */
 567                 *title,                 /* job-name */
 568                 *user;                  /* job-originating-user-name */
 569   char          uri[HTTP_MAX_URI];      /* URI for jobs */
 570   _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */
 571   static const char * const attrs[] =   /* Requested attributes */
 572                 {
 573                   "job-id",
 574                   "job-priority",
 575                   "job-k-octets",
 576                   "job-state",
 577                   "time-at-completed",
 578                   "time-at-creation",
 579                   "time-at-processing",
 580                   "job-printer-uri",
 581                   "document-format",
 582                   "job-name",
 583                   "job-originating-user-name"
 584                 };
 585
 586
 587  /*
 588   * Range check input...
 589   */
 590
 591   if (!jobs)
 592   {
 593     _cupsSetError(IPP_INTERNAL_ERROR, strerror(EINVAL), 0);
 594
 595     return (-1);
 596   }
 597
 598  /*
 599   * Get the right URI...
 600   */
 601
 602   if (name)
 603   {
 604     if (httpAssembleURIf(HTTP_URI_CODING_ALL, uri, sizeof(uri), "ipp", NULL,
 605                          "localhost", 0, "/printers/%s", name) != HTTP_URI_OK)
 606     {
 607       _cupsSetError(IPP_INTERNAL_ERROR, _("Unable to create printer-uri!"), 1);
 608
 609       return (-1);
 610     }
 611   }
 612   else
 613     strcpy(uri, "ipp://localhost/");
 614
 615   if (!http)
 616     if ((http = _cupsConnect()) == NULL)
 617       return (-1);
 618
 619  /*
 620   * Build an IPP_GET_JOBS request, which requires the following
 621   * attributes:
 622   *
 623   *    attributes-charset
 624   *    attributes-natural-language
 625   *    printer-uri
 626   *    requesting-user-name
 627   *    which-jobs
 628   *    my-jobs
 629   *    requested-attributes
 630   */
 631
 632   request = ippNewRequest(IPP_GET_JOBS);
 633
 634   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
 635                "printer-uri", NULL, uri);
 636
 637   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
 638                "requesting-user-name", NULL, cupsUser());
 639
 640   if (myjobs)
 641     ippAddBoolean(request, IPP_TAG_OPERATION, "my-jobs", 1);
 642
 643   if (whichjobs == CUPS_WHICHJOBS_COMPLETED)
 644     ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
 645                  "which-jobs", NULL, "completed");
 646   else if (whichjobs == CUPS_WHICHJOBS_ALL)
 647     ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
 648                  "which-jobs", NULL, "all");
 649
 650   ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
 651                 "requested-attributes", sizeof(attrs) / sizeof(attrs[0]),
 652                 NULL, attrs);
 653
 654  /*
 655   * Do the request and get back a response...
 656   */
 657
 658   n     = 0;
 659   *jobs = NULL;
 660
 661   if ((response = cupsDoRequest(http, request, "/")) != NULL)
 662   {
 663     for (attr = response->attrs; attr; attr = attr->next)
 664     {
 665      /*
 666       * Skip leading attributes until we hit a job...
 667       */
 668
 669       while (attr && attr->group_tag != IPP_TAG_JOB)
 670         attr = attr->next;
 671
 672       if (!attr)
 673         break;
 674
 675      /*
 676       * Pull the needed attributes from this job...
 677       */
 678
 679       id              = 0;
 680       size            = 0;
 681       priority        = 50;
 682       state           = IPP_JOB_PENDING;
 683       user            = "unknown";
 684       dest            = NULL;
 685       format          = "application/octet-stream";
 686       title           = "untitled";
 687       creation_time   = 0;
 688       completed_time  = 0;
 689       processing_time = 0;
 690
 691       while (attr && attr->group_tag == IPP_TAG_JOB)
 692       {
 693         if (!strcmp(attr->name, "job-id") &&
 694             attr->value_tag == IPP_TAG_INTEGER)
 695           id = attr->values[0].integer;
 696         else if (!strcmp(attr->name, "job-state") &&
 697                  attr->value_tag == IPP_TAG_ENUM)
 698           state = (ipp_jstate_t)attr->values[0].integer;
 699         else if (!strcmp(attr->name, "job-priority") &&
 700                  attr->value_tag == IPP_TAG_INTEGER)
 701           priority = attr->values[0].integer;
 702         else if (!strcmp(attr->name, "job-k-octets") &&
 703                  attr->value_tag == IPP_TAG_INTEGER)
 704           size = attr->values[0].integer;
 705         else if (!strcmp(attr->name, "time-at-completed") &&
 706                  attr->value_tag == IPP_TAG_INTEGER)
 707           completed_time = attr->values[0].integer;
 708         else if (!strcmp(attr->name, "time-at-creation") &&
 709                  attr->value_tag == IPP_TAG_INTEGER)
 710           creation_time = attr->values[0].integer;
 711         else if (!strcmp(attr->name, "time-at-processing") &&
 712                  attr->value_tag == IPP_TAG_INTEGER)
 713           processing_time = attr->values[0].integer;
 714         else if (!strcmp(attr->name, "job-printer-uri") &&
 715                  attr->value_tag == IPP_TAG_URI)
 716         {
 717           if ((dest = strrchr(attr->values[0].string.text, '/')) != NULL)
 718             dest ++;
 719         }
 720         else if (!strcmp(attr->name, "job-originating-user-name") &&
 721                  attr->value_tag == IPP_TAG_NAME)
 722           user = attr->values[0].string.text;
 723         else if (!strcmp(attr->name, "document-format") &&
 724                  attr->value_tag == IPP_TAG_MIMETYPE)
 725           format = attr->values[0].string.text;
 726         else if (!strcmp(attr->name, "job-name") &&
 727                  (attr->value_tag == IPP_TAG_TEXT ||
 728                   attr->value_tag == IPP_TAG_NAME))
 729           title = attr->values[0].string.text;
 730
 731         attr = attr->next;
 732       }
 733
 734      /*
 735       * See if we have everything needed...
 736       */
 737
 738       if (!dest || !id)
 739       {
 740         if (!attr)
 741           break;
 742         else
 743           continue;
 744       }
 745
 746      /*
 747       * Allocate memory for the job...
 748       */
 749
 750       if (n == 0)
 751         temp = malloc(sizeof(cups_job_t));
 752       else
 753         temp = realloc(*jobs, sizeof(cups_job_t) * (n + 1));
 754
 755       if (!temp)
 756       {
 757        /*
 758         * Ran out of memory!
 759         */
 760
 761         _cupsSetError(IPP_INTERNAL_ERROR, NULL, 0);
 762
 763         cupsFreeJobs(n, *jobs);
 764         *jobs = NULL;
 765
 766         ippDelete(response);
 767
 768         return (-1);
 769       }
 770
 771       *jobs = temp;
 772       temp  += n;
 773       n ++;
 774
 775      /*
 776       * Copy the data over...
 777       */
 778
 779       temp->dest            = _cupsStrAlloc(dest);
 780       temp->user            = _cupsStrAlloc(user);
 781       temp->format          = _cupsStrAlloc(format);
 782       temp->title           = _cupsStrAlloc(title);
 783       temp->id              = id;
 784       temp->priority        = priority;
 785       temp->state           = state;
 786       temp->size            = size;
 787       temp->completed_time  = completed_time;
 788       temp->creation_time   = creation_time;
 789       temp->processing_time = processing_time;
 790
 791       if (!attr)
 792         break;
 793     }
 794
 795     ippDelete(response);
 796   }
 797
 798   if (n == 0 && cg->last_error >= IPP_BAD_REQUEST)
 799     return (-1);
 800   else
 801     return (n);
 802 }
 803
 804
 805 /*
 806  * 'cupsGetPPD()' - Get the PPD file for a printer on the default server.
 807  *
 808  * For classes, @code cupsGetPPD@ returns the PPD file for the first printer
 809  * in the class.
 810  *
 811  * The returned filename is stored in a static buffer and is overwritten with
 812  * each call to @code cupsGetPPD@ or @link cupsGetPPD2@.
 813  */
 814
 815 const char *                            /* O - Filename for PPD file */
 816 cupsGetPPD(const char *name)            /* I - Destination name */
 817 {
 818   _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */
 819   time_t        modtime = 0;            /* Modification time */
 820
 821
 822  /*
 823   * Return the PPD file...
 824   */
 825
 826   cg->ppd_filename[0] = '\0';
 827
 828   if (cupsGetPPD3(CUPS_HTTP_DEFAULT, name, &modtime, cg->ppd_filename,
 829                   sizeof(cg->ppd_filename)) == HTTP_OK)
 830     return (cg->ppd_filename);
 831   else
 832     return (NULL);
 833 }
 834
 835
 836 /*
 837  * 'cupsGetPPD2()' - Get the PPD file for a printer from the specified server.
 838  *
 839  * For classes, @code cupsGetPPD2@ returns the PPD file for the first printer
 840  * in the class.
 841  *
 842  * The returned filename is stored in a static buffer and is overwritten with
 843  * each call to @link cupsGetPPD@ or @code cupsGetPPD2@.
 844  *
 845  * @since CUPS 1.1.21/Mac OS X 10.4@
 846  */
 847
 848 const char *                            /* O - Filename for PPD file */
 849 cupsGetPPD2(http_t     *http,           /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
 850             const char *name)           /* I - Destination name */
 851 {
 852   _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */
 853   time_t        modtime = 0;            /* Modification time */
 854
 855
 856   cg->ppd_filename[0] = '\0';
 857
 858   if (cupsGetPPD3(http, name, &modtime, cg->ppd_filename,
 859                   sizeof(cg->ppd_filename)) == HTTP_OK)
 860     return (cg->ppd_filename);
 861   else
 862     return (NULL);
 863 }
 864
 865
 866 /*
 867  * 'cupsGetPPD3()' - Get the PPD file for a printer on the specified
 868  *                   server if it has changed.
 869  *
 870  * The "modtime" parameter contains the modification time of any
 871  * locally-cached content and is updated with the time from the PPD file on
 872  * the server.
 873  *
 874  * The "buffer" parameter contains the local PPD filename.  If it contains
 875  * the empty string, a new temporary file is created, otherwise the existing
 876  * file will be overwritten as needed.
 877  *
 878  * On success, @code HTTP_OK@ is returned for a new PPD file and
 879  * @code HTTP_NOT_MODIFIED@ if the existing PPD file is up-to-date.  Any other
 880  * status is an error.
 881  *
 882  * For classes, @code cupsGetPPD3@ returns the PPD file for the first printer
 883  * in the class.
 884  *
 885  * @since CUPS 1.4/Mac OS X 10.6@
 886  */
 887
 888 http_status_t                           /* O  - HTTP status */
 889 cupsGetPPD3(http_t     *http,           /* I  - HTTP connection or @code CUPS_HTTP_DEFAULT@ */
 890             const char *name,           /* I  - Destination name */
 891             time_t     *modtime,        /* IO - Modification time */
 892             char       *buffer,         /* I  - Filename buffer */
 893             size_t     bufsize)         /* I  - Size of filename buffer */
 894 {
 895   int           http_port;              /* Port number */
 896   char          http_hostname[HTTP_MAX_HOST];
 897                                         /* Hostname associated with connection */
 898   http_t        *http2;                 /* Alternate HTTP connection */
 899   int           fd;                     /* PPD file */
 900   char          localhost[HTTP_MAX_URI],/* Local hostname */
 901                 hostname[HTTP_MAX_URI], /* Hostname */
 902                 resource[HTTP_MAX_URI]; /* Resource name */
 903   int           port;                   /* Port number */
 904   http_status_t status;                 /* HTTP status from server */
 905   _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */
 906
 907
 908  /*
 909   * Range check input...
 910   */
 911
 912   DEBUG_printf(("cupsGetPPD3(http=%p, name=\"%s\", modtime=%p(%d), buffer=%p, "
 913                 "bufsize=%d)", http, name, modtime,
 914                 modtime ? (int)*modtime : 0, buffer, (int)bufsize));
 915
 916   if (!name)
 917   {
 918     _cupsSetError(IPP_INTERNAL_ERROR, _("No printer name!"), 1);
 919     return (HTTP_NOT_ACCEPTABLE);
 920   }
 921
 922   if (!modtime)
 923   {
 924     _cupsSetError(IPP_INTERNAL_ERROR, _("No modification time!"), 1);
 925     return (HTTP_NOT_ACCEPTABLE);
 926   }
 927
 928   if (!buffer || bufsize <= 1)
 929   {
 930     _cupsSetError(IPP_INTERNAL_ERROR, _("Bad filename buffer!"), 1);
 931     return (HTTP_NOT_ACCEPTABLE);
 932   }
 933
 934 #ifndef WIN32
 935  /*
 936   * See if the PPD file is available locally...
 937   */
 938
 939   if (!cg->servername[0])
 940     cupsServer();
 941
 942   if (!strcasecmp(cg->servername, "localhost"))
 943   {
 944     char        ppdname[1024];          /* PPD filename */
 945     struct stat ppdinfo;                /* PPD file information */
 946
 947
 948     snprintf(ppdname, sizeof(ppdname), "%s/ppd/%s.ppd", cg->cups_serverroot,
 949              name);
 950     if (!stat(ppdname, &ppdinfo))
 951     {
 952      /*
 953       * OK, the file exists, use it!
 954       */
 955
 956       if (buffer[0])
 957       {
 958         unlink(buffer);
 959
 960         if (symlink(ppdname, buffer) && errno != EEXIST)
 961         {
 962           _cupsSetError(IPP_INTERNAL_ERROR, NULL, 0);
 963
 964           return (HTTP_SERVER_ERROR);
 965         }
 966       }
 967       else
 968       {
 969         int             tries;          /* Number of tries */
 970         const char      *tmpdir;        /* TMPDIR environment variable */
 971         struct timeval  curtime;        /* Current time */
 972
 973        /*
 974         * Previously we put root temporary files in the default CUPS temporary
 975         * directory under /var/spool/cups.  However, since the scheduler cleans
 976         * out temporary files there and runs independently of the user apps, we
 977         * don't want to use it unless specifically told to by cupsd.
 978         */
 979
 980         if ((tmpdir = getenv("TMPDIR")) == NULL)
 981 #  ifdef __APPLE__
 982           tmpdir = "/private/tmp";      /* /tmp is a symlink to /private/tmp */
 983 #  else
 984           tmpdir = "/tmp";
 985 #  endif /* __APPLE__ */
 986
 987        /*
 988         * Make the temporary name using the specified directory...
 989         */
 990
 991         tries = 0;
 992
 993         do
 994         {
 995          /*
 996           * Get the current time of day...
 997           */
 998
 999           gettimeofday(&curtime, NULL);
1000
1001          /*
1002           * Format a string using the hex time values...
1003           */
1004
1005           snprintf(buffer, bufsize, "%s/%08lx%05lx", tmpdir,
1006                    (unsigned long)curtime.tv_sec,
1007                    (unsigned long)curtime.tv_usec);
1008
1009          /*
1010           * Try to make a symlink...
1011           */
1012
1013           if (!symlink(ppdname, buffer))
1014             break;
1015
1016           tries ++;
1017         }
1018         while (tries < 1000);
1019
1020         if (tries >= 1000)
1021         {
1022           _cupsSetError(IPP_INTERNAL_ERROR, NULL, 0);
1023
1024           return (HTTP_SERVER_ERROR);
1025         }
1026       }
1027
1028       if (*modtime >= ppdinfo.st_mtime)
1029         return (HTTP_NOT_MODIFIED);
1030       else
1031       {
1032         *modtime = ppdinfo.st_mtime;
1033         return (HTTP_OK);
1034       }
1035     }
1036   }
1037 #endif /* !WIN32 */
1038
1039  /*
1040   * Try finding a printer URI for this printer...
1041   */
1042
1043   if (!http)
1044     if ((http = _cupsConnect()) == NULL)
1045       return (HTTP_SERVICE_UNAVAILABLE);
1046
1047   if (!cups_get_printer_uri(http, name, hostname, sizeof(hostname), &port,
1048                             resource, sizeof(resource), 0))
1049     return (HTTP_NOT_FOUND);
1050
1051   DEBUG_printf(("2cupsGetPPD3: Printer hostname=\"%s\", port=%d", hostname,
1052                 port));
1053
1054  /*
1055   * Remap local hostname to localhost...
1056   */
1057
1058   httpGetHostname(NULL, localhost, sizeof(localhost));
1059
1060   DEBUG_printf(("2cupsGetPPD3: Local hostname=\"%s\"", localhost));
1061
1062   if (!strcasecmp(localhost, hostname))
1063     strcpy(hostname, "localhost");
1064
1065  /*
1066   * Get the hostname and port number we are connected to...
1067   */
1068
1069   httpGetHostname(http, http_hostname, sizeof(http_hostname));
1070   http_port = _httpAddrPort(http->hostaddr);
1071
1072   DEBUG_printf(("2cupsGetPPD3: Connection hostname=\"%s\", port=%d",
1073                 http_hostname, http_port));
1074
1075  /*
1076   * Reconnect to the correct server as needed...
1077   */
1078
1079   if (!strcasecmp(http_hostname, hostname) && port == http_port)
1080     http2 = http;
1081   else if ((http2 = httpConnectEncrypt(hostname, port,
1082                                        cupsEncryption())) == NULL)
1083   {
1084     DEBUG_puts("1cupsGetPPD3: Unable to connect to server!");
1085
1086     return (HTTP_SERVICE_UNAVAILABLE);
1087   }
1088
1089  /*
1090   * Get a temp file...
1091   */
1092
1093   if (buffer[0])
1094     fd = open(buffer, O_CREAT | O_TRUNC | O_WRONLY, 0600);
1095   else
1096     fd = cupsTempFd(buffer, bufsize);
1097
1098   if (fd < 0)
1099   {
1100    /*
1101     * Can't open file; close the server connection and return NULL...
1102     */
1103
1104     _cupsSetError(IPP_INTERNAL_ERROR, NULL, 0);
1105
1106     if (http2 != http)
1107       httpClose(http2);
1108
1109     return (HTTP_SERVER_ERROR);
1110   }
1111
1112  /*
1113   * And send a request to the HTTP server...
1114   */
1115
1116   strlcat(resource, ".ppd", sizeof(resource));
1117
1118   if (*modtime > 0)
1119     httpSetField(http2, HTTP_FIELD_IF_MODIFIED_SINCE,
1120                  httpGetDateString(*modtime));
1121
1122   status = cupsGetFd(http2, resource, fd);
1123
1124   close(fd);
1125
1126  /*
1127   * See if we actually got the file or an error...
1128   */
1129
1130   if (status == HTTP_OK)
1131     *modtime = httpGetDateTime(httpGetField(http2, HTTP_FIELD_DATE));
1132   else if (status != HTTP_NOT_MODIFIED)
1133   {
1134     _cupsSetHTTPError(status);
1135
1136     unlink(cg->ppd_filename);
1137   }
1138
1139   if (http2 != http)
1140     httpClose(http2);
1141
1142  /*
1143   * Return the PPD file...
1144   */
1145
1146   DEBUG_printf(("1cupsGetPPD3: Returning status %d", status));
1147
1148   return (status);
1149 }
1150
1151
1152 /*
1153  * 'cupsGetPrinters()' - Get a list of printers from the default server.
1154  *
1155  * This function is deprecated - use @link cupsGetDests@ instead.
1156  *
1157  * @deprecated@
1158  */
1159
1160 int                                     /* O - Number of printers */
1161 cupsGetPrinters(char ***printers)       /* O - Printers */
1162 {
1163   int           n;                      /* Number of printers */
1164   ipp_t         *request,               /* IPP Request */
1165                 *response;              /* IPP Response */
1166   ipp_attribute_t *attr;                /* Current attribute */
1167   char          **temp;                 /* Temporary pointer */
1168   http_t        *http;                  /* Connection to server */
1169
1170
1171  /*
1172   * Range check input...
1173   */
1174
1175   if (!printers)
1176   {
1177     _cupsSetError(IPP_INTERNAL_ERROR, strerror(EINVAL), 0);
1178
1179     return (0);
1180   }
1181
1182   *printers = NULL;
1183
1184  /*
1185   * Try to connect to the server...
1186   */
1187
1188   if ((http = _cupsConnect()) == NULL)
1189     return (0);
1190
1191  /*
1192   * Build a CUPS_GET_PRINTERS request, which requires the following
1193   * attributes:
1194   *
1195   *    attributes-charset
1196   *    attributes-natural-language
1197   *    requested-attributes
1198   */
1199
1200   request = ippNewRequest(CUPS_GET_PRINTERS);
1201
1202   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
1203                "requested-attributes", NULL, "printer-name");
1204
1205   ippAddInteger(request, IPP_TAG_OPERATION, IPP_TAG_ENUM,
1206                 "printer-type", 0);
1207
1208   ippAddInteger(request, IPP_TAG_OPERATION, IPP_TAG_ENUM,
1209                 "printer-type-mask", CUPS_PRINTER_CLASS);
1210
1211  /*
1212   * Do the request and get back a response...
1213   */
1214
1215   n = 0;
1216
1217   if ((response = cupsDoRequest(http, request, "/")) != NULL)
1218   {
1219     for (attr = response->attrs; attr != NULL; attr = attr->next)
1220       if (attr->name != NULL &&
1221           strcasecmp(attr->name, "printer-name") == 0 &&
1222           attr->value_tag == IPP_TAG_NAME)
1223       {
1224         if (n == 0)
1225           temp = malloc(sizeof(char *));
1226         else
1227           temp = realloc(*printers, sizeof(char *) * (n + 1));
1228
1229         if (temp == NULL)
1230         {
1231          /*
1232           * Ran out of memory!
1233           */
1234
1235           while (n > 0)
1236           {
1237             n --;
1238             free((*printers)[n]);
1239           }
1240
1241           free(*printers);
1242           ippDelete(response);
1243           return (0);
1244         }
1245
1246         *printers = temp;
1247         temp[n]   = strdup(attr->values[0].string.text);
1248         n ++;
1249       }
1250
1251     ippDelete(response);
1252   }
1253
1254   return (n);
1255 }
1256
1257
1258 /*
1259  * 'cupsGetServerPPD()' - Get an available PPD file from the server.
1260  *
1261  * This function returns the named PPD file from the server.  The
1262  * list of available PPDs is provided by the IPP @code CUPS_GET_PPDS@
1263  * operation.
1264  *
1265  * You must remove (unlink) the PPD file when you are finished with
1266  * it. The PPD filename is stored in a static location that will be
1267  * overwritten on the next call to @link cupsGetPPD@, @link cupsGetPPD2@,
1268  * or @link cupsGetServerPPD@.
1269  *
1270  * @since CUPS 1.3/Mac OS X 10.5@
1271  */
1272
1273 char *                                  /* O - Name of PPD file or @code NULL@ on error */
1274 cupsGetServerPPD(http_t     *http,      /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
1275                  const char *name)      /* I - Name of PPD file ("ppd-name") */
1276 {
1277   int                   fd;             /* PPD file descriptor */
1278   ipp_t                 *request;       /* IPP request */
1279   _cups_globals_t       *cg = _cupsGlobals();
1280                                         /* Pointer to library globals */
1281
1282
1283  /*
1284   * Range check input...
1285   */
1286
1287   if (!name)
1288   {
1289     _cupsSetError(IPP_INTERNAL_ERROR, _("No PPD name!"), 1);
1290
1291     return (NULL);
1292   }
1293
1294   if (!http)
1295     if ((http = _cupsConnect()) == NULL)
1296       return (NULL);
1297
1298  /*
1299   * Get a temp file...
1300   */
1301
1302   if ((fd = cupsTempFd(cg->ppd_filename, sizeof(cg->ppd_filename))) < 0)
1303   {
1304    /*
1305     * Can't open file; close the server connection and return NULL...
1306     */
1307
1308     _cupsSetError(IPP_INTERNAL_ERROR, NULL, 0);
1309
1310     return (NULL);
1311   }
1312
1313  /*
1314   * Get the PPD file...
1315   */
1316
1317   request = ippNewRequest(CUPS_GET_PPD);
1318   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "ppd-name", NULL,
1319                name);
1320
1321   ippDelete(cupsDoIORequest(http, request, "/", -1, fd));
1322
1323   close(fd);
1324
1325   if (cupsLastError() != IPP_OK)
1326   {
1327     unlink(cg->ppd_filename);
1328     return (NULL);
1329   }
1330   else
1331     return (cg->ppd_filename);
1332 }
1333
1334
1335 /*
1336  * 'cupsLastError()' - Return the last IPP status code.
1337  */
1338
1339 ipp_status_t                            /* O - IPP status code from last request */
1340 cupsLastError(void)
1341 {
1342   return (_cupsGlobals()->last_error);
1343 }
1344
1345
1346 /*
1347  * 'cupsLastErrorString()' - Return the last IPP status-message.
1348  *
1349  * @since CUPS 1.2/Mac OS X 10.5@
1350  */
1351
1352 const char *                            /* O - status-message text from last request */
1353 cupsLastErrorString(void)
1354 {
1355   return (_cupsGlobals()->last_status_message);
1356 }
1357
1358
1359 /*
1360  * 'cupsPrintFile()' - Print a file to a printer or class on the default server.
1361  */
1362
1363 int                                     /* O - Job ID or 0 on error */
1364 cupsPrintFile(const char    *name,      /* I - Destination name */
1365               const char    *filename,  /* I - File to print */
1366               const char    *title,     /* I - Title of job */
1367               int           num_options,/* I - Number of options */
1368               cups_option_t *options)   /* I - Options */
1369 {
1370   DEBUG_printf(("cupsPrintFile(name=\"%s\", filename=\"%s\", "
1371                 "title=\"%s\", num_options=%d, options=%p)",
1372                 name, filename, title, num_options, options));
1373
1374   return (cupsPrintFiles2(CUPS_HTTP_DEFAULT, name, 1, &filename, title,
1375                           num_options, options));
1376 }
1377
1378
1379 /*
1380  * 'cupsPrintFile2()' - Print a file to a printer or class on the specified
1381  *                      server.
1382  *
1383  * @since CUPS 1.1.21/Mac OS X 10.4@
1384  */
1385
1386 int                                     /* O - Job ID or 0 on error */
1387 cupsPrintFile2(
1388     http_t        *http,                /* I - Connection to server */
1389     const char    *name,                /* I - Destination name */
1390     const char    *filename,            /* I - File to print */
1391     const char    *title,               /* I - Title of job */
1392     int           num_options,          /* I - Number of options */
1393     cups_option_t *options)             /* I - Options */
1394 {
1395   DEBUG_printf(("cupsPrintFile2(http=%p, name=\"%s\", filename=\"%s\", "
1396                 "title=\"%s\", num_options=%d, options=%p)",
1397                 http, name, filename, title, num_options, options));
1398
1399   return (cupsPrintFiles2(http, name, 1, &filename, title, num_options,
1400                           options));
1401 }
1402
1403
1404 /*
1405  * 'cupsPrintFiles()' - Print one or more files to a printer or class on the
1406  *                      default server.
1407  */
1408
1409 int                                     /* O - Job ID or 0 on error */
1410 cupsPrintFiles(
1411     const char    *name,                /* I - Destination name */
1412     int           num_files,            /* I - Number of files */
1413     const char    **files,              /* I - File(s) to print */
1414     const char    *title,               /* I - Title of job */
1415     int           num_options,          /* I - Number of options */
1416     cups_option_t *options)             /* I - Options */
1417 {
1418   DEBUG_printf(("cupsPrintFiles(name=\"%s\", num_files=%d, "
1419                 "files=%p, title=\"%s\", num_options=%d, options=%p)",
1420                 name, num_files, files, title, num_options, options));
1421
1422  /*
1423   * Print the file(s)...
1424   */
1425
1426   return (cupsPrintFiles2(CUPS_HTTP_DEFAULT, name, num_files, files, title,
1427                           num_options, options));
1428 }
1429
1430
1431 /*
1432  * 'cupsPrintFiles2()' - Print one or more files to a printer or class on the
1433  *                       specified server.
1434  *
1435  * @since CUPS 1.1.21/Mac OS X 10.4@
1436  */
1437
1438 int                                     /* O - Job ID or 0 on error */
1439 cupsPrintFiles2(
1440     http_t        *http,                /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
1441     const char    *name,                /* I - Destination name */
1442     int           num_files,            /* I - Number of files */
1443     const char    **files,              /* I - File(s) to print */
1444     const char    *title,               /* I - Title of job */
1445     int           num_options,          /* I - Number of options */
1446     cups_option_t *options)             /* I - Options */
1447 {
1448   int           i;                      /* Looping var */
1449   int           job_id;                 /* New job ID */
1450   const char    *docname;               /* Basename of current filename */
1451   const char    *format;                /* Document format */
1452   cups_file_t   *fp;                    /* Current file */
1453   char          buffer[8192];           /* Copy buffer */
1454   ssize_t       bytes;                  /* Bytes in buffer */
1455   http_status_t status;                 /* Status of write */
1456
1457
1458   DEBUG_printf(("cupsPrintFiles2(http=%p, name=\"%s\", num_files=%d, "
1459                 "files=%p, title=\"%s\", num_options=%d, options=%p)",
1460                 http, name, num_files, files, title, num_options, options));
1461
1462  /*
1463   * Range check input...
1464   */
1465
1466   if (!name || num_files < 1 || !files)
1467   {
1468     _cupsSetError(IPP_INTERNAL_ERROR, strerror(EINVAL), 0);
1469
1470     return (0);
1471   }
1472
1473  /*
1474   * Create the print job...
1475   */
1476
1477   if ((job_id = cupsCreateJob(http, name, title, num_options, options)) == 0)
1478     return (0);
1479
1480  /*
1481   * Send each of the files...
1482   */
1483
1484   if (cupsGetOption("raw", num_options, options))
1485     format = CUPS_FORMAT_RAW;
1486   else if ((format = cupsGetOption("document-format", num_options,
1487                                    options)) == NULL)
1488     format = CUPS_FORMAT_AUTO;
1489
1490   for (i = 0; i < num_files; i ++)
1491   {
1492    /*
1493     * Start the next file...
1494     */
1495
1496     if ((docname = strrchr(files[i], '/')) != NULL)
1497       docname ++;
1498     else
1499       docname = files[i];
1500
1501     if ((fp = cupsFileOpen(files[i], "rb")) == NULL)
1502     {
1503      /*
1504       * Unable to open print file, cancel the job and return...
1505       */
1506
1507       cupsCancelJob2(http, name, job_id, 0);
1508       return (0);
1509     }
1510
1511     status = cupsStartDocument(http, name, job_id, docname, format,
1512                                i == (num_files - 1));
1513
1514     while (status == HTTP_CONTINUE &&
1515            (bytes = cupsFileRead(fp, buffer, sizeof(buffer))) > 0)
1516       status = cupsWriteRequestData(http, buffer, bytes);
1517
1518     cupsFileClose(fp);
1519
1520     if (status != HTTP_CONTINUE || cupsFinishDocument(http, name) != IPP_OK)
1521     {
1522      /*
1523       * Unable to queue, cancel the job and return...
1524       */
1525
1526       cupsCancelJob2(http, name, job_id, 0);
1527       return (0);
1528     }
1529   }
1530
1531   return (job_id);
1532 }
1533
1534
1535 /*
1536  * 'cupsStartDocument()' - Add a document to a job created with cupsCreateJob().
1537  *
1538  * Use @link cupsWriteRequestData@ to write data for the document and
1539  * @link cupsFinishDocument@ to finish the document and get the submission status.
1540  *
1541  * The MIME type constants @code CUPS_FORMAT_AUTO@, @code CUPS_FORMAT_PDF@,
1542  * @code CUPS_FORMAT_POSTSCRIPT@, @code CUPS_FORMAT_RAW@, and
1543  * @code CUPS_FORMAT_TEXT@ are provided for the "format" argument, although
1544  * any supported MIME type string can be supplied.
1545  *
1546  * @since CUPS 1.4/Mac OS X 10.6@
1547  */
1548
1549 http_status_t                           /* O - HTTP status of request */
1550 cupsStartDocument(
1551     http_t     *http,                   /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
1552     const char *name,                   /* I - Destination name */
1553     int        job_id,                  /* I - Job ID from @link cupsCreateJob@ */
1554     const char *docname,                /* I - Name of document */
1555     const char *format,                 /* I - MIME type or @code CUPS_FORMAT_foo@ */
1556     int        last_document)           /* I - 1 for last document in job, 0 otherwise */
1557 {
1558   char          resource[1024],         /* Resource for destinatio */
1559                 printer_uri[1024];      /* Printer URI */
1560   ipp_t         *request;               /* Send-Document request */
1561   http_status_t status;                 /* HTTP status */
1562
1563
1564  /*
1565   * Create a Send-Document request...
1566   */
1567
1568   if ((request = ippNewRequest(IPP_SEND_DOCUMENT)) == NULL)
1569   {
1570     _cupsSetError(IPP_INTERNAL_ERROR, strerror(ENOMEM), 0);
1571     return (0);
1572   }
1573
1574   httpAssembleURIf(HTTP_URI_CODING_ALL, printer_uri, sizeof(printer_uri), "ipp",
1575                    NULL, "localhost", ippPort(), "/printers/%s", name);
1576   snprintf(resource, sizeof(resource), "/printers/%s", name);
1577
1578   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri",
1579                NULL, printer_uri);
1580   ippAddInteger(request, IPP_TAG_OPERATION, IPP_TAG_INTEGER, "job-id", job_id);
1581   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
1582                NULL, cupsUser());
1583   if (docname)
1584     ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "document-name",
1585                  NULL, docname);
1586   if (format)
1587     ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_MIMETYPE,
1588                  "document-format", NULL, format);
1589   ippAddBoolean(request, IPP_TAG_OPERATION, "last-document", last_document);
1590
1591  /*
1592   * Send and delete the request, then return the status...
1593   */
1594
1595   status = cupsSendRequest(http, request, resource, CUPS_LENGTH_VARIABLE);
1596
1597   ippDelete(request);
1598
1599   return (status);
1600 }
1601
1602
1603 /*
1604  * '_cupsConnect()' - Get the default server connection...
1605  */
1606
1607 http_t *                                /* O - HTTP connection */
1608 _cupsConnect(void)
1609 {
1610   _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */
1611
1612
1613  /*
1614   * See if we are connected to the same server...
1615   */
1616
1617   if (cg->http)
1618   {
1619    /*
1620     * Compare the connection hostname, port, and encryption settings to
1621     * the cached defaults; these were initialized the first time we
1622     * connected...
1623     */
1624
1625     if (strcmp(cg->http->hostname, cg->server) ||
1626         cg->ipp_port != _httpAddrPort(cg->http->hostaddr) ||
1627         (cg->http->encryption != cg->encryption &&
1628          cg->http->encryption == HTTP_ENCRYPT_NEVER))
1629     {
1630      /*
1631       * Need to close the current connection because something has changed...
1632       */
1633
1634       httpClose(cg->http);
1635       cg->http = NULL;
1636     }
1637   }
1638
1639  /*
1640   * (Re)connect as needed...
1641   */
1642
1643   if (!cg->http)
1644   {
1645     if ((cg->http = httpConnectEncrypt(cupsServer(), ippPort(),
1646                                        cupsEncryption())) == NULL)
1647     {
1648       if (errno)
1649         _cupsSetError(IPP_SERVICE_UNAVAILABLE, NULL, 0);
1650       else
1651         _cupsSetError(IPP_SERVICE_UNAVAILABLE,
1652                       _("Unable to connect to host."), 1);
1653     }
1654   }
1655
1656  /*
1657   * Return the cached connection...
1658   */
1659
1660   return (cg->http);
1661 }
1662
1663
1664 /*
1665  * 'cups_get_printer_uri()' - Get the printer-uri-supported attribute for the
1666  *                            first printer in a class.
1667  */
1668
1669 static int                              /* O - 1 on success, 0 on failure */
1670 cups_get_printer_uri(
1671     http_t     *http,                   /* I - Connection to server */
1672     const char *name,                   /* I - Name of printer or class */
1673     char       *host,                   /* I - Hostname buffer */
1674     int        hostsize,                /* I - Size of hostname buffer */
1675     int        *port,                   /* O - Port number */
1676     char       *resource,               /* I - Resource buffer */
1677     int        resourcesize,            /* I - Size of resource buffer */
1678     int        depth)                   /* I - Depth of query */
1679 {
1680   int           i;                      /* Looping var */
1681   int           http_port;              /* Port number */
1682   http_t        *http2;                 /* Alternate HTTP connection */
1683   ipp_t         *request,               /* IPP request */
1684                 *response;              /* IPP response */
1685   ipp_attribute_t *attr;                /* Current attribute */
1686   char          uri[HTTP_MAX_URI],      /* printer-uri attribute */
1687                 scheme[HTTP_MAX_URI],   /* Scheme name */
1688                 username[HTTP_MAX_URI], /* Username:password */
1689                 classname[255],         /* Temporary class name */
1690                 http_hostname[HTTP_MAX_HOST];
1691                                         /* Hostname associated with connection */
1692   static const char * const requested_attrs[] =
1693                 {                       /* Requested attributes */
1694                   "member-uris",
1695                   "printer-uri-supported",
1696                   "printer-type"
1697                 };
1698
1699
1700   DEBUG_printf(("7cups_get_printer_uri(http=%p, name=\"%s\", host=%p, "
1701                 "hostsize=%d, resource=%p, resourcesize=%d, depth=%d)",
1702                 http, name, host, hostsize, resource, resourcesize, depth));
1703
1704  /*
1705   * Setup the printer URI...
1706   */
1707
1708   if (httpAssembleURIf(HTTP_URI_CODING_ALL, uri, sizeof(uri), "ipp", NULL,
1709                        "localhost", 0, "/printers/%s", name) != HTTP_URI_OK)
1710   {
1711     _cupsSetError(IPP_INTERNAL_ERROR, _("Unable to create printer-uri!"), 1);
1712
1713     *host     = '\0';
1714     *resource = '\0';
1715
1716     return (0);
1717   }
1718
1719   DEBUG_printf(("9cups_get_printer_uri: printer-uri=\"%s\"", uri));
1720
1721  /*
1722   * Get the hostname and port number we are connected to...
1723   */
1724
1725   httpGetHostname(http, http_hostname, sizeof(http_hostname));
1726   http_port = _httpAddrPort(http->hostaddr);
1727
1728  /*
1729   * Build an IPP_GET_PRINTER_ATTRIBUTES request, which requires the following
1730   * attributes:
1731   *
1732   *    attributes-charset
1733   *    attributes-natural-language
1734   *    printer-uri
1735   *    requested-attributes
1736   */
1737
1738   request = ippNewRequest(IPP_GET_PRINTER_ATTRIBUTES);
1739
1740   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri",
1741                NULL, uri);
1742
1743   ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
1744                 "requested-attributes",
1745                 sizeof(requested_attrs) / sizeof(requested_attrs[0]),
1746                 NULL, requested_attrs);
1747
1748  /*
1749   * Do the request and get back a response...
1750   */
1751
1752   if ((response = cupsDoRequest(http, request, "/")) != NULL)
1753   {
1754     if ((attr = ippFindAttribute(response, "member-uris", IPP_TAG_URI)) != NULL)
1755     {
1756      /*
1757       * Get the first actual printer name in the class...
1758       */
1759
1760       for (i = 0; i < attr->num_values; i ++)
1761       {
1762         httpSeparateURI(HTTP_URI_CODING_ALL, attr->values[i].string.text,
1763                         scheme, sizeof(scheme), username, sizeof(username),
1764                         host, hostsize, port, resource, resourcesize);
1765         if (!strncmp(resource, "/printers/", 10))
1766         {
1767          /*
1768           * Found a printer!
1769           */
1770
1771           ippDelete(response);
1772
1773           return (1);
1774         }
1775       }
1776
1777      /*
1778       * No printers in this class - try recursively looking for a printer,
1779       * but not more than 3 levels deep...
1780       */
1781
1782       if (depth < 3)
1783       {
1784         for (i = 0; i < attr->num_values; i ++)
1785         {
1786           httpSeparateURI(HTTP_URI_CODING_ALL, attr->values[i].string.text,
1787                           scheme, sizeof(scheme), username, sizeof(username),
1788                           host, hostsize, port, resource, resourcesize);
1789           if (!strncmp(resource, "/classes/", 9))
1790           {
1791            /*
1792             * Found a class!  Connect to the right server...
1793             */
1794
1795             if (!strcasecmp(http_hostname, host) && *port == http_port)
1796               http2 = http;
1797             else if ((http2 = httpConnectEncrypt(host, *port,
1798                                                  cupsEncryption())) == NULL)
1799             {
1800               DEBUG_puts("8cups_get_printer_uri: Unable to connect to server!");
1801
1802               continue;
1803             }
1804
1805            /*
1806             * Look up printers on that server...
1807             */
1808
1809             strlcpy(classname, resource + 9, sizeof(classname));
1810
1811             cups_get_printer_uri(http2, classname, host, hostsize, port,
1812                                  resource, resourcesize, depth + 1);
1813
1814            /*
1815             * Close the connection as needed...
1816             */
1817
1818             if (http2 != http)
1819               httpClose(http2);
1820
1821             if (*host)
1822               return (1);
1823           }
1824         }
1825       }
1826     }
1827     else if ((attr = ippFindAttribute(response, "printer-uri-supported",
1828                                       IPP_TAG_URI)) != NULL)
1829     {
1830       httpSeparateURI(HTTP_URI_CODING_ALL,
1831                       _httpResolveURI(attr->values[0].string.text, uri,
1832                                       sizeof(uri), 0),
1833                       scheme, sizeof(scheme), username, sizeof(username),
1834                       host, hostsize, port, resource, resourcesize);
1835       ippDelete(response);
1836
1837       if (!strncmp(resource, "/classes/", 9))
1838       {
1839         _cupsSetError(IPP_INTERNAL_ERROR,
1840                       _("No printer-uri found for class!"), 1);
1841
1842         *host     = '\0';
1843         *resource = '\0';
1844
1845         return (0);
1846       }
1847
1848       return (1);
1849     }
1850
1851     ippDelete(response);
1852   }
1853
1854   if (cupsLastError() != IPP_NOT_FOUND)
1855     _cupsSetError(IPP_INTERNAL_ERROR, _("No printer-uri found!"), 1);
1856
1857   *host     = '\0';
1858   *resource = '\0';
1859
1860   return (0);
1861 }
1862
1863
1864 /*
1865  * End of "$Id: util.c 7850 2008-08-20 00:07:25Z mike $".
1866  */