cups/util.c

   1 /*
   2  * "$Id: util.c 7014 2007-10-10 21:57:43Z mike $"
   3  *
   4  *   Printing utilities for the Common UNIX Printing System (CUPS).
   5  *
   6  *   Copyright 2007-2008 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@
 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));
 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@
 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)\n",
 224                 http, name, title, num_options, options));
 225
 226  /*
 227   * Range check input...
 228   */
 229
 230   if (!name)
 231   {
 232     _cupsSetError(IPP_INTERNAL_ERROR, NULL);
 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, NULL);
 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@
 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, NULL);
 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@
 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   const char    *var;                   /* Environment variable */
 462   _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */
 463
 464
 465  /*
 466   * First see if the LPDEST or PRINTER environment variables are
 467   * set...  However, if PRINTER is set to "lp", ignore it to work
 468   * around a "feature" in most Linux distributions - the default
 469   * user login scripts set PRINTER to "lp"...
 470   */
 471
 472   if ((var = getenv("LPDEST")) != NULL)
 473     return (var);
 474   else if ((var = getenv("PRINTER")) != NULL && strcmp(var, "lp") != 0)
 475     return (var);
 476
 477  /*
 478   * Connect to the server as needed...
 479   */
 480
 481   if (!http)
 482     if ((http = _cupsConnect()) == NULL)
 483       return (NULL);
 484
 485  /*
 486   * Build a CUPS_GET_DEFAULT request, which requires the following
 487   * attributes:
 488   *
 489   *    attributes-charset
 490   *    attributes-natural-language
 491   */
 492
 493   request = ippNewRequest(CUPS_GET_DEFAULT);
 494
 495  /*
 496   * Do the request and get back a response...
 497   */
 498
 499   if ((response = cupsDoRequest(http, request, "/")) != NULL)
 500   {
 501     if ((attr = ippFindAttribute(response, "printer-name",
 502                                  IPP_TAG_NAME)) != NULL)
 503     {
 504       strlcpy(cg->def_printer, attr->values[0].string.text,
 505               sizeof(cg->def_printer));
 506       ippDelete(response);
 507       return (cg->def_printer);
 508     }
 509
 510     ippDelete(response);
 511   }
 512
 513   return (NULL);
 514 }
 515
 516
 517 /*
 518  * 'cupsGetJobs()' - Get the jobs from the default server.
 519  *
 520  * A "whichjobs" value of @code CUPS_WHICHJOBS_ALL@ returns all jobs regardless
 521  * of state, while @code CUPS_WHICHJOBS_ACTIVE@ returns jobs that are
 522  * pending, processing, or held and @code CUPS_WHICHJOBS_COMPLETED@ returns
 523  * jobs that are stopped, canceled, aborted, or completed.
 524  */
 525
 526 int                                     /* O - Number of jobs */
 527 cupsGetJobs(cups_job_t **jobs,          /* O - Job data */
 528             const char *name,           /* I - @code NULL@ = all destinations, otherwise show jobs for named destination */
 529             int        myjobs,          /* I - 0 = all users, 1 = mine */
 530             int        whichjobs)       /* I - @code CUPS_WHICHJOBS_ALL@, @code CUPS_WHICHJOBS_ACTIVE@, or @code CUPS_WHICHJOBS_COMPLETED@ */
 531 {
 532  /*
 533   * Return the jobs...
 534   */
 535
 536   return (cupsGetJobs2(CUPS_HTTP_DEFAULT, jobs, name, myjobs, whichjobs));
 537 }
 538
 539
 540
 541 /*
 542  * 'cupsGetJobs2()' - Get the jobs from the specified server.
 543  *
 544  * A "whichjobs" value of @code CUPS_WHICHJOBS_ALL@ returns all jobs regardless
 545  * of state, while @code CUPS_WHICHJOBS_ACTIVE@ returns jobs that are
 546  * pending, processing, or held and @code CUPS_WHICHJOBS_COMPLETED@ returns
 547  * jobs that are stopped, canceled, aborted, or completed.
 548  *
 549  * @since CUPS 1.1.21@
 550  */
 551
 552 int                                     /* O - Number of jobs */
 553 cupsGetJobs2(http_t     *http,          /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
 554              cups_job_t **jobs,         /* O - Job data */
 555              const char *name,          /* I - @code NULL@ = all destinations, otherwise show jobs for named destination */
 556              int        myjobs,         /* I - 0 = all users, 1 = mine */
 557              int        whichjobs)      /* I - @code CUPS_WHICHJOBS_ALL@, @code CUPS_WHICHJOBS_ACTIVE@, or @code CUPS_WHICHJOBS_COMPLETED@ */
 558 {
 559   int           n;                      /* Number of jobs */
 560   ipp_t         *request,               /* IPP Request */
 561                 *response;              /* IPP Response */
 562   ipp_attribute_t *attr;                /* Current attribute */
 563   cups_job_t    *temp;                  /* Temporary pointer */
 564   int           id,                     /* job-id */
 565                 priority,               /* job-priority */
 566                 size;                   /* job-k-octets */
 567   ipp_jstate_t  state;                  /* job-state */
 568   time_t        completed_time,         /* time-at-completed */
 569                 creation_time,          /* time-at-creation */
 570                 processing_time;        /* time-at-processing */
 571   const char    *dest,                  /* job-printer-uri */
 572                 *format,                /* document-format */
 573                 *title,                 /* job-name */
 574                 *user;                  /* job-originating-user-name */
 575   char          uri[HTTP_MAX_URI];      /* URI for jobs */
 576   _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */
 577   static const char * const attrs[] =   /* Requested attributes */
 578                 {
 579                   "job-id",
 580                   "job-priority",
 581                   "job-k-octets",
 582                   "job-state",
 583                   "time-at-completed",
 584                   "time-at-creation",
 585                   "time-at-processing",
 586                   "job-printer-uri",
 587                   "document-format",
 588                   "job-name",
 589                   "job-originating-user-name"
 590                 };
 591
 592
 593  /*
 594   * Range check input...
 595   */
 596
 597   if (!jobs)
 598   {
 599     _cupsSetError(IPP_INTERNAL_ERROR, NULL);
 600
 601     return (-1);
 602   }
 603
 604  /*
 605   * Get the right URI...
 606   */
 607
 608   if (name)
 609   {
 610     if (httpAssembleURIf(HTTP_URI_CODING_ALL, uri, sizeof(uri), "ipp", NULL,
 611                          "localhost", 0, "/printers/%s", name) != HTTP_URI_OK)
 612     {
 613       _cupsSetError(IPP_INTERNAL_ERROR, NULL);
 614
 615       return (-1);
 616     }
 617   }
 618   else
 619     strcpy(uri, "ipp://localhost/jobs");
 620
 621   if (!http)
 622     if ((http = _cupsConnect()) == NULL)
 623       return (-1);
 624
 625  /*
 626   * Build an IPP_GET_JOBS request, which requires the following
 627   * attributes:
 628   *
 629   *    attributes-charset
 630   *    attributes-natural-language
 631   *    printer-uri
 632   *    requesting-user-name
 633   *    which-jobs
 634   *    my-jobs
 635   *    requested-attributes
 636   */
 637
 638   request = ippNewRequest(IPP_GET_JOBS);
 639
 640   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
 641                "printer-uri", NULL, uri);
 642
 643   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
 644                "requesting-user-name", NULL, cupsUser());
 645
 646   if (myjobs)
 647     ippAddBoolean(request, IPP_TAG_OPERATION, "my-jobs", 1);
 648
 649   if (whichjobs == CUPS_WHICHJOBS_COMPLETED)
 650     ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
 651                  "which-jobs", NULL, "completed");
 652   else if (whichjobs == CUPS_WHICHJOBS_ALL)
 653     ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
 654                  "which-jobs", NULL, "all");
 655
 656   ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
 657                 "requested-attributes", sizeof(attrs) / sizeof(attrs[0]),
 658                 NULL, attrs);
 659
 660  /*
 661   * Do the request and get back a response...
 662   */
 663
 664   n     = 0;
 665   *jobs = NULL;
 666
 667   if ((response = cupsDoRequest(http, request, "/")) != NULL)
 668   {
 669     for (attr = response->attrs; attr; attr = attr->next)
 670     {
 671      /*
 672       * Skip leading attributes until we hit a job...
 673       */
 674
 675       while (attr && attr->group_tag != IPP_TAG_JOB)
 676         attr = attr->next;
 677
 678       if (!attr)
 679         break;
 680
 681      /*
 682       * Pull the needed attributes from this job...
 683       */
 684
 685       id              = 0;
 686       size            = 0;
 687       priority        = 50;
 688       state           = IPP_JOB_PENDING;
 689       user            = "unknown";
 690       dest            = NULL;
 691       format          = "application/octet-stream";
 692       title           = "untitled";
 693       creation_time   = 0;
 694       completed_time  = 0;
 695       processing_time = 0;
 696
 697       while (attr && attr->group_tag == IPP_TAG_JOB)
 698       {
 699         if (!strcmp(attr->name, "job-id") &&
 700             attr->value_tag == IPP_TAG_INTEGER)
 701           id = attr->values[0].integer;
 702         else if (!strcmp(attr->name, "job-state") &&
 703                  attr->value_tag == IPP_TAG_ENUM)
 704           state = (ipp_jstate_t)attr->values[0].integer;
 705         else if (!strcmp(attr->name, "job-priority") &&
 706                  attr->value_tag == IPP_TAG_INTEGER)
 707           priority = attr->values[0].integer;
 708         else if (!strcmp(attr->name, "job-k-octets") &&
 709                  attr->value_tag == IPP_TAG_INTEGER)
 710           size = attr->values[0].integer;
 711         else if (!strcmp(attr->name, "time-at-completed") &&
 712                  attr->value_tag == IPP_TAG_INTEGER)
 713           completed_time = attr->values[0].integer;
 714         else if (!strcmp(attr->name, "time-at-creation") &&
 715                  attr->value_tag == IPP_TAG_INTEGER)
 716           creation_time = attr->values[0].integer;
 717         else if (!strcmp(attr->name, "time-at-processing") &&
 718                  attr->value_tag == IPP_TAG_INTEGER)
 719           processing_time = attr->values[0].integer;
 720         else if (!strcmp(attr->name, "job-printer-uri") &&
 721                  attr->value_tag == IPP_TAG_URI)
 722         {
 723           if ((dest = strrchr(attr->values[0].string.text, '/')) != NULL)
 724             dest ++;
 725         }
 726         else if (!strcmp(attr->name, "job-originating-user-name") &&
 727                  attr->value_tag == IPP_TAG_NAME)
 728           user = attr->values[0].string.text;
 729         else if (!strcmp(attr->name, "document-format") &&
 730                  attr->value_tag == IPP_TAG_MIMETYPE)
 731           format = attr->values[0].string.text;
 732         else if (!strcmp(attr->name, "job-name") &&
 733                  (attr->value_tag == IPP_TAG_TEXT ||
 734                   attr->value_tag == IPP_TAG_NAME))
 735           title = attr->values[0].string.text;
 736
 737         attr = attr->next;
 738       }
 739
 740      /*
 741       * See if we have everything needed...
 742       */
 743
 744       if (!dest || !id)
 745       {
 746         if (!attr)
 747           break;
 748         else
 749           continue;
 750       }
 751
 752      /*
 753       * Allocate memory for the job...
 754       */
 755
 756       if (n == 0)
 757         temp = malloc(sizeof(cups_job_t));
 758       else
 759         temp = realloc(*jobs, sizeof(cups_job_t) * (n + 1));
 760
 761       if (!temp)
 762       {
 763        /*
 764         * Ran out of memory!
 765         */
 766
 767         _cupsSetError(IPP_INTERNAL_ERROR, strerror(errno));
 768
 769         cupsFreeJobs(n, *jobs);
 770         *jobs = NULL;
 771
 772         ippDelete(response);
 773
 774         return (-1);
 775       }
 776
 777       *jobs = temp;
 778       temp  += n;
 779       n ++;
 780
 781      /*
 782       * Copy the data over...
 783       */
 784
 785       temp->dest            = _cupsStrAlloc(dest);
 786       temp->user            = _cupsStrAlloc(user);
 787       temp->format          = _cupsStrAlloc(format);
 788       temp->title           = _cupsStrAlloc(title);
 789       temp->id              = id;
 790       temp->priority        = priority;
 791       temp->state           = state;
 792       temp->size            = size;
 793       temp->completed_time  = completed_time;
 794       temp->creation_time   = creation_time;
 795       temp->processing_time = processing_time;
 796
 797       if (!attr)
 798         break;
 799     }
 800
 801     ippDelete(response);
 802   }
 803
 804   if (n == 0 && cg->last_error >= IPP_BAD_REQUEST)
 805     return (-1);
 806   else
 807     return (n);
 808 }
 809
 810
 811 /*
 812  * 'cupsGetPPD()' - Get the PPD file for a printer on the default server.
 813  *
 814  * For classes, @code cupsGetPPD@ returns the PPD file for the first printer
 815  * in the class.
 816  *
 817  * The returned filename is stored in a static buffer and is overwritten with
 818  * each call to @code cupsGetPPD@ or @link cupsGetPPD2@.
 819  */
 820
 821 const char *                            /* O - Filename for PPD file */
 822 cupsGetPPD(const char *name)            /* I - Destination name */
 823 {
 824   _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */
 825   time_t        modtime = 0;            /* Modification time */
 826
 827
 828  /*
 829   * Return the PPD file...
 830   */
 831
 832   cg->ppd_filename[0] = '\0';
 833
 834   if (cupsGetPPD3(CUPS_HTTP_DEFAULT, name, &modtime, cg->ppd_filename,
 835                   sizeof(cg->ppd_filename)) == HTTP_OK)
 836     return (cg->ppd_filename);
 837   else
 838     return (NULL);
 839 }
 840
 841
 842 /*
 843  * 'cupsGetPPD2()' - Get the PPD file for a printer from the specified server.
 844  *
 845  * For classes, @code cupsGetPPD2@ returns the PPD file for the first printer
 846  * in the class.
 847  *
 848  * The returned filename is stored in a static buffer and is overwritten with
 849  * each call to @link cupsGetPPD@ or @code cupsGetPPD2@.
 850  *
 851  * @since CUPS 1.1.21@
 852  */
 853
 854 const char *                            /* O - Filename for PPD file */
 855 cupsGetPPD2(http_t     *http,           /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
 856             const char *name)           /* I - Destination name */
 857 {
 858   _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */
 859   time_t        modtime = 0;            /* Modification time */
 860
 861
 862   cg->ppd_filename[0] = '\0';
 863
 864   if (cupsGetPPD3(http, name, &modtime, cg->ppd_filename,
 865                   sizeof(cg->ppd_filename)) == HTTP_OK)
 866     return (cg->ppd_filename);
 867   else
 868     return (NULL);
 869 }
 870
 871
 872 /*
 873  * 'cupsGetPPD3()' - Get the PPD file for a printer on the specified
 874  *                   server if it has changed.
 875  *
 876  * The "modtime" parameter contains the modification time of any
 877  * locally-cached content and is updated with the time from the PPD file on
 878  * the server.
 879  *
 880  * The "buffer" parameter contains the local PPD filename.  If it contains
 881  * the empty string, a new temporary file is created, otherwise the existing
 882  * file will be overwritten as needed.
 883  *
 884  * On success, @code HTTP_OK@ is returned for a new PPD file and
 885  * @code HTTP_NOT_MODIFIED@ if the existing PPD file is up-to-date.  Any other
 886  * status is an error.
 887  *
 888  * For classes, @code cupsGetPPD3@ returns the PPD file for the first printer
 889  * in the class.
 890  *
 891  * @since CUPS 1.4@
 892  */
 893
 894 http_status_t                           /* O  - HTTP status */
 895 cupsGetPPD3(http_t     *http,           /* I  - HTTP connection or @code CUPS_HTTP_DEFAULT@ */
 896             const char *name,           /* I  - Destination name */
 897             time_t     *modtime,        /* IO - Modification time */
 898             char       *buffer,         /* I  - Filename buffer */
 899             size_t     bufsize)         /* I  - Size of filename buffer */
 900 {
 901   int           http_port;              /* Port number */
 902   char          http_hostname[HTTP_MAX_HOST];
 903                                         /* Hostname associated with connection */
 904   http_t        *http2;                 /* Alternate HTTP connection */
 905   int           fd;                     /* PPD file */
 906   char          localhost[HTTP_MAX_URI],/* Local hostname */
 907                 hostname[HTTP_MAX_URI], /* Hostname */
 908                 resource[HTTP_MAX_URI]; /* Resource name */
 909   int           port;                   /* Port number */
 910   http_status_t status;                 /* HTTP status from server */
 911   _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */
 912
 913
 914  /*
 915   * Range check input...
 916   */
 917
 918   DEBUG_printf(("cupsGetPPD3(http=%p, name=\"%s\", modtime=%p(%d), buffer=%p, "
 919                 "bufsize=%d)\n", http, name ? name : "(null)", modtime,
 920                 modtime ? *modtime : 0, buffer, (int)bufsize));
 921
 922   if (!name)
 923   {
 924     _cupsSetError(IPP_INTERNAL_ERROR, "No printer name!");
 925     return (HTTP_NOT_ACCEPTABLE);
 926   }
 927
 928   if (!modtime)
 929   {
 930     _cupsSetError(IPP_INTERNAL_ERROR, "No modification time!");
 931     return (HTTP_NOT_ACCEPTABLE);
 932   }
 933
 934   if (!buffer || bufsize <= 1)
 935   {
 936     _cupsSetError(IPP_INTERNAL_ERROR, "Bad filename buffer!");
 937     return (HTTP_NOT_ACCEPTABLE);
 938   }
 939
 940  /*
 941   * Try finding a printer URI for this printer...
 942   */
 943
 944   if (!http)
 945     http = _cupsConnect();
 946
 947   if (!cups_get_printer_uri(http, name, hostname, sizeof(hostname), &port,
 948                             resource, sizeof(resource), 0))
 949     return (HTTP_NOT_FOUND);
 950
 951   DEBUG_printf(("Printer hostname=\"%s\", port=%d\n", hostname, port));
 952
 953  /*
 954   * Remap local hostname to localhost...
 955   */
 956
 957   httpGetHostname(NULL, localhost, sizeof(localhost));
 958
 959   DEBUG_printf(("Local hostname=\"%s\"\n", localhost));
 960
 961   if (!strcasecmp(localhost, hostname))
 962     strcpy(hostname, "localhost");
 963
 964  /*
 965   * Get the hostname and port number we are connected to...
 966   */
 967
 968   httpGetHostname(http, http_hostname, sizeof(http_hostname));
 969
 970 #ifdef AF_INET6
 971   if (http->hostaddr->addr.sa_family == AF_INET6)
 972     http_port = ntohs(http->hostaddr->ipv6.sin6_port);
 973   else
 974 #endif /* AF_INET6 */
 975   if (http->hostaddr->addr.sa_family == AF_INET)
 976     http_port = ntohs(http->hostaddr->ipv4.sin_port);
 977   else
 978     http_port = ippPort();
 979
 980   DEBUG_printf(("Connection hostname=\"%s\", port=%d\n", http_hostname,
 981                 http_port));
 982
 983  /*
 984   * Reconnect to the correct server as needed...
 985   */
 986
 987   if (!strcasecmp(http_hostname, hostname) && port == http_port)
 988     http2 = http;
 989   else if ((http2 = httpConnectEncrypt(hostname, port,
 990                                        cupsEncryption())) == NULL)
 991   {
 992     DEBUG_puts("Unable to connect to server!");
 993
 994     return (HTTP_SERVICE_UNAVAILABLE);
 995   }
 996
 997  /*
 998   * Get a temp file...
 999   */
1000
1001   if (buffer[0])
1002     fd = open(buffer, O_CREAT | O_TRUNC | O_WRONLY, 0600);
1003   else
1004     fd = cupsTempFd(buffer, bufsize);
1005
1006   if (fd < 0)
1007   {
1008    /*
1009     * Can't open file; close the server connection and return NULL...
1010     */
1011
1012     _cupsSetError(IPP_INTERNAL_ERROR, strerror(errno));
1013
1014     if (http2 != http)
1015       httpClose(http2);
1016
1017     return (HTTP_SERVER_ERROR);
1018   }
1019
1020  /*
1021   * And send a request to the HTTP server...
1022   */
1023
1024   strlcat(resource, ".ppd", sizeof(resource));
1025
1026   if (*modtime > 0)
1027     httpSetField(http2, HTTP_FIELD_IF_MODIFIED_SINCE,
1028                  httpGetDateString(*modtime));
1029
1030   status = cupsGetFd(http2, resource, fd);
1031
1032   close(fd);
1033
1034  /*
1035   * See if we actually got the file or an error...
1036   */
1037
1038   if (status == HTTP_OK)
1039     *modtime = httpGetDateTime(httpGetField(http2, HTTP_FIELD_DATE));
1040   else if (status != HTTP_NOT_MODIFIED)
1041   {
1042     switch (status)
1043     {
1044       case HTTP_NOT_FOUND :
1045           _cupsSetError(IPP_NOT_FOUND, httpStatus(status));
1046           break;
1047
1048       case HTTP_UNAUTHORIZED :
1049           _cupsSetError(IPP_NOT_AUTHORIZED, httpStatus(status));
1050           break;
1051
1052       default :
1053           DEBUG_printf(("HTTP error %d mapped to IPP_SERVICE_UNAVAILABLE!\n",
1054                         status));
1055           _cupsSetError(IPP_SERVICE_UNAVAILABLE, httpStatus(status));
1056           break;
1057     }
1058
1059     unlink(cg->ppd_filename);
1060   }
1061
1062   if (http2 != http)
1063     httpClose(http2);
1064
1065  /*
1066   * Return the PPD file...
1067   */
1068
1069   return (status);
1070 }
1071
1072
1073 /*
1074  * 'cupsGetPrinters()' - Get a list of printers from the default server.
1075  *
1076  * This function is deprecated - use @link cupsGetDests@ instead.
1077  *
1078  * @deprecated@
1079  */
1080
1081 int                                     /* O - Number of printers */
1082 cupsGetPrinters(char ***printers)       /* O - Printers */
1083 {
1084   int           n;                      /* Number of printers */
1085   ipp_t         *request,               /* IPP Request */
1086                 *response;              /* IPP Response */
1087   ipp_attribute_t *attr;                /* Current attribute */
1088   char          **temp;                 /* Temporary pointer */
1089   http_t        *http;                  /* Connection to server */
1090
1091
1092  /*
1093   * Range check input...
1094   */
1095
1096   if (!printers)
1097   {
1098     _cupsSetError(IPP_INTERNAL_ERROR, NULL);
1099
1100     return (0);
1101   }
1102
1103   *printers = NULL;
1104
1105  /*
1106   * Try to connect to the server...
1107   */
1108
1109   if ((http = _cupsConnect()) == NULL)
1110     return (0);
1111
1112  /*
1113   * Build a CUPS_GET_PRINTERS request, which requires the following
1114   * attributes:
1115   *
1116   *    attributes-charset
1117   *    attributes-natural-language
1118   *    requested-attributes
1119   */
1120
1121   request = ippNewRequest(CUPS_GET_PRINTERS);
1122
1123   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
1124                "requested-attributes", NULL, "printer-name");
1125
1126   ippAddInteger(request, IPP_TAG_OPERATION, IPP_TAG_ENUM,
1127                 "printer-type", 0);
1128
1129   ippAddInteger(request, IPP_TAG_OPERATION, IPP_TAG_ENUM,
1130                 "printer-type-mask", CUPS_PRINTER_CLASS);
1131
1132  /*
1133   * Do the request and get back a response...
1134   */
1135
1136   n = 0;
1137
1138   if ((response = cupsDoRequest(http, request, "/")) != NULL)
1139   {
1140     for (attr = response->attrs; attr != NULL; attr = attr->next)
1141       if (attr->name != NULL &&
1142           strcasecmp(attr->name, "printer-name") == 0 &&
1143           attr->value_tag == IPP_TAG_NAME)
1144       {
1145         if (n == 0)
1146           temp = malloc(sizeof(char *));
1147         else
1148           temp = realloc(*printers, sizeof(char *) * (n + 1));
1149
1150         if (temp == NULL)
1151         {
1152          /*
1153           * Ran out of memory!
1154           */
1155
1156           while (n > 0)
1157           {
1158             n --;
1159             free((*printers)[n]);
1160           }
1161
1162           free(*printers);
1163           ippDelete(response);
1164           return (0);
1165         }
1166
1167         *printers = temp;
1168         temp[n]   = strdup(attr->values[0].string.text);
1169         n ++;
1170       }
1171
1172     ippDelete(response);
1173   }
1174
1175   return (n);
1176 }
1177
1178
1179 /*
1180  * 'cupsGetServerPPD()' - Get an available PPD file from the server.
1181  *
1182  * This function returns the named PPD file from the server.  The
1183  * list of available PPDs is provided by the IPP @code CUPS_GET_PPDS@
1184  * operation.
1185  *
1186  * You must remove (unlink) the PPD file when you are finished with
1187  * it. The PPD filename is stored in a static location that will be
1188  * overwritten on the next call to @link cupsGetPPD@, @link cupsGetPPD2@,
1189  * or @link cupsGetServerPPD@.
1190  *
1191  * @since CUPS 1.3@
1192  */
1193
1194 char *                                  /* O - Name of PPD file or @code NULL@ on error */
1195 cupsGetServerPPD(http_t     *http,      /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
1196                  const char *name)      /* I - Name of PPD file ("ppd-name") */
1197 {
1198   int                   fd;             /* PPD file descriptor */
1199   ipp_t                 *request;       /* IPP request */
1200   _cups_globals_t       *cg = _cupsGlobals();
1201                                         /* Pointer to library globals */
1202
1203
1204  /*
1205   * Range check input...
1206   */
1207
1208   if (!name)
1209   {
1210     _cupsSetError(IPP_INTERNAL_ERROR, "No PPD name!");
1211
1212     return (NULL);
1213   }
1214
1215   if (!http)
1216     if ((http = _cupsConnect()) == NULL)
1217       return (NULL);
1218
1219  /*
1220   * Get a temp file...
1221   */
1222
1223   if ((fd = cupsTempFd(cg->ppd_filename, sizeof(cg->ppd_filename))) < 0)
1224   {
1225    /*
1226     * Can't open file; close the server connection and return NULL...
1227     */
1228
1229     _cupsSetError(IPP_INTERNAL_ERROR, strerror(errno));
1230
1231     return (NULL);
1232   }
1233
1234  /*
1235   * Get the PPD file...
1236   */
1237
1238   request = ippNewRequest(CUPS_GET_PPD);
1239   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "ppd-name", NULL,
1240                name);
1241
1242   ippDelete(cupsDoIORequest(http, request, "/", -1, fd));
1243
1244   close(fd);
1245
1246   if (cupsLastError() != IPP_OK)
1247   {
1248     unlink(cg->ppd_filename);
1249     return (NULL);
1250   }
1251   else
1252     return (cg->ppd_filename);
1253 }
1254
1255
1256 /*
1257  * 'cupsLastError()' - Return the last IPP status code.
1258  */
1259
1260 ipp_status_t                            /* O - IPP status code from last request */
1261 cupsLastError(void)
1262 {
1263   return (_cupsGlobals()->last_error);
1264 }
1265
1266
1267 /*
1268  * 'cupsLastErrorString()' - Return the last IPP status-message.
1269  *
1270  * @since CUPS 1.2@
1271  */
1272
1273 const char *                            /* O - status-message text from last request */
1274 cupsLastErrorString(void)
1275 {
1276   return (_cupsGlobals()->last_status_message);
1277 }
1278
1279
1280 /*
1281  * 'cupsPrintFile()' - Print a file to a printer or class on the default server.
1282  */
1283
1284 int                                     /* O - Job ID or 0 on error */
1285 cupsPrintFile(const char    *name,      /* I - Destination name */
1286               const char    *filename,  /* I - File to print */
1287               const char    *title,     /* I - Title of job */
1288               int           num_options,/* I - Number of options */
1289               cups_option_t *options)   /* I - Options */
1290 {
1291   DEBUG_printf(("cupsPrintFile(name=\"%s\", filename=\"%s\", "
1292                 "title=\"%s\", num_options=%d, options=%p)\n",
1293                 name, filename, title, num_options, options));
1294
1295   return (cupsPrintFiles2(CUPS_HTTP_DEFAULT, name, 1, &filename, title,
1296                           num_options, options));
1297 }
1298
1299
1300 /*
1301  * 'cupsPrintFile2()' - Print a file to a printer or class on the specified
1302  *                      server.
1303  *
1304  * @since CUPS 1.1.21@
1305  */
1306
1307 int                                     /* O - Job ID or 0 on error */
1308 cupsPrintFile2(
1309     http_t        *http,                /* I - Connection to server */
1310     const char    *name,                /* I - Destination name */
1311     const char    *filename,            /* I - File to print */
1312     const char    *title,               /* I - Title of job */
1313     int           num_options,          /* I - Number of options */
1314     cups_option_t *options)             /* I - Options */
1315 {
1316   DEBUG_printf(("cupsPrintFile2(http=%p, name=\"%s\", filename=\"%s\", "
1317                 "title=\"%s\", num_options=%d, options=%p)\n",
1318                 http, name, filename, title, num_options, options));
1319
1320   return (cupsPrintFiles2(http, name, 1, &filename, title, num_options,
1321                           options));
1322 }
1323
1324
1325 /*
1326  * 'cupsPrintFiles()' - Print one or more files to a printer or class on the
1327  *                      default server.
1328  */
1329
1330 int                                     /* O - Job ID or 0 on error */
1331 cupsPrintFiles(
1332     const char    *name,                /* I - Destination name */
1333     int           num_files,            /* I - Number of files */
1334     const char    **files,              /* I - File(s) to print */
1335     const char    *title,               /* I - Title of job */
1336     int           num_options,          /* I - Number of options */
1337     cups_option_t *options)             /* I - Options */
1338 {
1339   DEBUG_printf(("cupsPrintFiles(name=\"%s\", num_files=%d, "
1340                 "files=%p, title=\"%s\", num_options=%d, options=%p)\n",
1341                 name, num_files, files, title, num_options, options));
1342
1343
1344  /*
1345   * Print the file(s)...
1346   */
1347
1348   return (cupsPrintFiles2(CUPS_HTTP_DEFAULT, name, num_files, files, title,
1349                           num_options, options));
1350 }
1351
1352
1353 /*
1354  * 'cupsPrintFiles2()' - Print one or more files to a printer or class on the
1355  *                       specified server.
1356  *
1357  * @since CUPS 1.1.21@
1358  */
1359
1360 int                                     /* O - Job ID or 0 on error */
1361 cupsPrintFiles2(
1362     http_t        *http,                /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
1363     const char    *name,                /* I - Destination name */
1364     int           num_files,            /* I - Number of files */
1365     const char    **files,              /* I - File(s) 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   int           i;                      /* Looping var */
1371   int           job_id;                 /* New job ID */
1372   const char    *docname;               /* Basename of current filename */
1373   const char    *format;                /* Document format */
1374   cups_file_t   *fp;                    /* Current file */
1375   char          buffer[8192];           /* Copy buffer */
1376   ssize_t       bytes;                  /* Bytes in buffer */
1377   http_status_t status;                 /* Status of write */
1378
1379
1380   DEBUG_printf(("cupsPrintFiles2(http=%p, name=\"%s\", num_files=%d, "
1381                 "files=%p, title=\"%s\", num_options=%d, options=%p)\n",
1382                 http, name, num_files, files, title, num_options, options));
1383
1384  /*
1385   * Range check input...
1386   */
1387
1388   if (!name || num_files < 1 || !files)
1389   {
1390     _cupsSetError(IPP_INTERNAL_ERROR, NULL);
1391
1392     return (0);
1393   }
1394
1395  /*
1396   * Create the print job...
1397   */
1398
1399   if ((job_id = cupsCreateJob(http, name, title, num_options, options)) == 0)
1400     return (0);
1401
1402  /*
1403   * Send each of the files...
1404   */
1405
1406   if (cupsGetOption("raw", num_options, options))
1407     format = CUPS_FORMAT_RAW;
1408   else if ((format = cupsGetOption("document-format", num_options,
1409                                    options)) == NULL)
1410     format = CUPS_FORMAT_AUTO;
1411
1412   for (i = 0; i < num_files; i ++)
1413   {
1414    /*
1415     * Start the next file...
1416     */
1417
1418     if ((docname = strrchr(files[i], '/')) != NULL)
1419       docname ++;
1420     else
1421       docname = files[i];
1422
1423     if ((fp = cupsFileOpen(files[i], "rb")) == NULL)
1424     {
1425      /*
1426       * Unable to open print file, cancel the job and return...
1427       */
1428
1429       cupsCancelJob2(http, name, job_id, 0);
1430       return (0);
1431     }
1432
1433     status = cupsStartDocument(http, name, job_id, docname, format,
1434                                i == (num_files - 1));
1435
1436     while (status == HTTP_CONTINUE &&
1437            (bytes = cupsFileRead(fp, buffer, sizeof(buffer))) > 0)
1438       status = cupsWriteRequestData(http, buffer, bytes);
1439
1440     cupsFileClose(fp);
1441
1442     if (status != HTTP_CONTINUE || cupsFinishDocument(http, name) != IPP_OK)
1443     {
1444      /*
1445       * Unable to queue, cancel the job and return...
1446       */
1447
1448       cupsCancelJob2(http, name, job_id, 0);
1449       return (0);
1450     }
1451   }
1452
1453   return (job_id);
1454 }
1455
1456
1457 /*
1458  * 'cupsStartDocument()' - Add a document to a job created with cupsCreateJob().
1459  *
1460  * Use @link cupsWriteRequestData@ to write data for the document and
1461  * @link cupsFinishDocument@ to finish the document and get the submission status.
1462  *
1463  * The MIME type constants @code CUPS_FORMAT_AUTO@, @code CUPS_FORMAT_PDF@,
1464  * @code CUPS_FORMAT_POSTSCRIPT@, @code CUPS_FORMAT_RAW@, and
1465  * @code CUPS_FORMAT_TEXT@ are provided for the "format" argument, although
1466  * any supported MIME type string can be supplied.
1467  *
1468  * @since CUPS 1.4@
1469  */
1470
1471 http_status_t                           /* O - HTTP status of request */
1472 cupsStartDocument(
1473     http_t     *http,                   /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
1474     const char *name,                   /* I - Destination name */
1475     int        job_id,                  /* I - Job ID from @link cupsCreateJob@ */
1476     const char *docname,                /* I - Name of document */
1477     const char *format,                 /* I - MIME type or @code CUPS_FORMAT_foo@ */
1478     int        last_document)           /* I - 1 for last document in job, 0 otherwise */
1479 {
1480   char          resource[1024],         /* Resource for destinatio */
1481                 printer_uri[1024];      /* Printer URI */
1482   ipp_t         *request;               /* Send-Document request */
1483   http_status_t status;                 /* HTTP status */
1484
1485
1486  /*
1487   * Create a Send-Document request...
1488   */
1489
1490   if ((request = ippNewRequest(IPP_SEND_DOCUMENT)) == NULL)
1491   {
1492     _cupsSetError(IPP_INTERNAL_ERROR, NULL);
1493     return (0);
1494   }
1495
1496   httpAssembleURIf(HTTP_URI_CODING_ALL, printer_uri, sizeof(printer_uri), "ipp",
1497                    NULL, "localhost", ippPort(), "/printers/%s", name);
1498   snprintf(resource, sizeof(resource), "/printers/%s", name);
1499
1500   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri",
1501                NULL, printer_uri);
1502   ippAddInteger(request, IPP_TAG_OPERATION, IPP_TAG_INTEGER, "job-id", job_id);
1503   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
1504                NULL, cupsUser());
1505   if (docname)
1506     ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "document-name",
1507                  NULL, docname);
1508   if (format)
1509     ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_MIMETYPE,
1510                  "document-format", NULL, format);
1511   ippAddBoolean(request, IPP_TAG_OPERATION, "last-document", last_document);
1512
1513  /*
1514   * Send and delete the request, then return the status...
1515   */
1516
1517   status = cupsSendRequest(http, request, resource, CUPS_LENGTH_VARIABLE);
1518
1519   ippDelete(request);
1520
1521   return (status);
1522 }
1523
1524
1525 /*
1526  * '_cupsConnect()' - Get the default server connection...
1527  */
1528
1529 http_t *                                /* O - HTTP connection */
1530 _cupsConnect(void)
1531 {
1532   _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */
1533
1534
1535  /*
1536   * See if we are connected to the same server...
1537   */
1538
1539   if (cg->http)
1540   {
1541     int port;                           /* Port for connection */
1542
1543
1544    /*
1545     * Get the port associated with the current connection...
1546     */
1547
1548 #ifdef AF_INET6
1549     if (cg->http->hostaddr->addr.sa_family == AF_INET6)
1550       port = ntohs(cg->http->hostaddr->ipv6.sin6_port);
1551     else
1552 #endif /* AF_INET6 */
1553     if (cg->http->hostaddr->addr.sa_family == AF_INET)
1554       port = ntohs(cg->http->hostaddr->ipv4.sin_port);
1555     else
1556       port = cg->ipp_port;
1557
1558    /*
1559     * Compare the connection hostname, port, and encryption settings to
1560     * the cached defaults; these were initialized the first time we
1561     * connected...
1562     */
1563
1564     if (strcmp(cg->http->hostname, cg->server) || cg->ipp_port != port ||
1565         (cg->http->encryption != cg->encryption &&
1566          cg->http->encryption == HTTP_ENCRYPT_NEVER))
1567     {
1568      /*
1569       * Need to close the current connection because something has changed...
1570       */
1571
1572       httpClose(cg->http);
1573       cg->http = NULL;
1574     }
1575   }
1576
1577  /*
1578   * (Re)connect as needed...
1579   */
1580
1581   if (!cg->http)
1582   {
1583     if ((cg->http = httpConnectEncrypt(cupsServer(), ippPort(),
1584                                        cupsEncryption())) == NULL)
1585       _cupsSetError(IPP_SERVICE_UNAVAILABLE,
1586                     errno ? strerror(errno) : "Unable to connect to host.");
1587   }
1588
1589  /*
1590   * Return the cached connection...
1591   */
1592
1593   return (cg->http);
1594 }
1595
1596
1597 /*
1598  * 'cups_get_printer_uri()' - Get the printer-uri-supported attribute for the first printer in a class.
1599  */
1600
1601 static int                              /* O - 1 on success, 0 on failure */
1602 cups_get_printer_uri(
1603     http_t     *http,                   /* I - Connection to server */
1604     const char *name,                   /* I - Name of printer or class */
1605     char       *host,                   /* I - Hostname buffer */
1606     int        hostsize,                /* I - Size of hostname buffer */
1607     int        *port,                   /* O - Port number */
1608     char       *resource,               /* I - Resource buffer */
1609     int        resourcesize,            /* I - Size of resource buffer */
1610     int        depth)                   /* I - Depth of query */
1611 {
1612   int           i;                      /* Looping var */
1613   int           http_port;              /* Port number */
1614   http_t        *http2;                 /* Alternate HTTP connection */
1615   ipp_t         *request,               /* IPP request */
1616                 *response;              /* IPP response */
1617   ipp_attribute_t *attr;                /* Current attribute */
1618   char          uri[HTTP_MAX_URI],      /* printer-uri attribute */
1619                 scheme[HTTP_MAX_URI],   /* Scheme name */
1620                 username[HTTP_MAX_URI], /* Username:password */
1621                 classname[255],         /* Temporary class name */
1622                 http_hostname[HTTP_MAX_HOST];
1623                                         /* Hostname associated with connection */
1624   static const char * const requested_attrs[] =
1625                 {                       /* Requested attributes */
1626                   "printer-uri-supported",
1627                   "printer-type",
1628                   "member-uris"
1629                 };
1630
1631
1632   DEBUG_printf(("cups_get_printer_uri(http=%p, name=\"%s\", host=%p, "
1633                 "hostsize=%d, resource=%p, resourcesize=%d, depth=%d)\n",
1634                 http, name ? name : "(null)", host, hostsize,
1635                 resource, resourcesize, depth));
1636
1637  /*
1638   * Setup the printer URI...
1639   */
1640
1641   if (httpAssembleURIf(HTTP_URI_CODING_ALL, uri, sizeof(uri), "ipp", NULL,
1642                        "localhost", 0, "/printers/%s", name) != HTTP_URI_OK)
1643   {
1644     _cupsSetError(IPP_INTERNAL_ERROR, "Unable to create printer-uri!");
1645
1646     *host     = '\0';
1647     *resource = '\0';
1648
1649     return (0);
1650   }
1651
1652   DEBUG_printf(("cups_get_printer_uri: printer-uri=\"%s\"\n", uri));
1653
1654  /*
1655   * Get the hostname and port number we are connected to...
1656   */
1657
1658   httpGetHostname(http, http_hostname, sizeof(http_hostname));
1659
1660 #ifdef AF_INET6
1661   if (http->hostaddr->addr.sa_family == AF_INET6)
1662     http_port = ntohs(http->hostaddr->ipv6.sin6_port);
1663   else
1664 #endif /* AF_INET6 */
1665   if (http->hostaddr->addr.sa_family == AF_INET)
1666     http_port = ntohs(http->hostaddr->ipv4.sin_port);
1667   else
1668     http_port = ippPort();
1669
1670  /*
1671   * Build an IPP_GET_PRINTER_ATTRIBUTES request, which requires the following
1672   * attributes:
1673   *
1674   *    attributes-charset
1675   *    attributes-natural-language
1676   *    printer-uri
1677   *    requested-attributes
1678   */
1679
1680   request = ippNewRequest(IPP_GET_PRINTER_ATTRIBUTES);
1681
1682   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri",
1683                NULL, uri);
1684
1685   ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
1686                 "requested-attributes",
1687                 sizeof(requested_attrs) / sizeof(requested_attrs[0]),
1688                 NULL, requested_attrs);
1689
1690  /*
1691   * Do the request and get back a response...
1692   */
1693
1694   if ((response = cupsDoRequest(http, request, "/")) != NULL)
1695   {
1696     if ((attr = ippFindAttribute(response, "member-uris", IPP_TAG_URI)) != NULL)
1697     {
1698      /*
1699       * Get the first actual printer name in the class...
1700       */
1701
1702       for (i = 0; i < attr->num_values; i ++)
1703       {
1704         httpSeparateURI(HTTP_URI_CODING_ALL, attr->values[i].string.text,
1705                         scheme, sizeof(scheme), username, sizeof(username),
1706                         host, hostsize, port, resource, resourcesize);
1707         if (!strncmp(resource, "/printers/", 10))
1708         {
1709          /*
1710           * Found a printer!
1711           */
1712
1713           ippDelete(response);
1714
1715           return (1);
1716         }
1717       }
1718
1719      /*
1720       * No printers in this class - try recursively looking for a printer,
1721       * but not more than 3 levels deep...
1722       */
1723
1724       if (depth < 3)
1725       {
1726         for (i = 0; i < attr->num_values; i ++)
1727         {
1728           httpSeparateURI(HTTP_URI_CODING_ALL, attr->values[i].string.text,
1729                           scheme, sizeof(scheme), username, sizeof(username),
1730                           host, hostsize, port, resource, resourcesize);
1731           if (!strncmp(resource, "/classes/", 9))
1732           {
1733            /*
1734             * Found a class!  Connect to the right server...
1735             */
1736
1737             if (!strcasecmp(http_hostname, host) && *port == http_port)
1738               http2 = http;
1739             else if ((http2 = httpConnectEncrypt(host, *port,
1740                                                  cupsEncryption())) == NULL)
1741             {
1742               DEBUG_puts("Unable to connect to server!");
1743
1744               continue;
1745             }
1746
1747            /*
1748             * Look up printers on that server...
1749             */
1750
1751             strlcpy(classname, resource + 9, sizeof(classname));
1752
1753             cups_get_printer_uri(http2, classname, host, hostsize, port,
1754                                  resource, resourcesize, depth + 1);
1755
1756            /*
1757             * Close the connection as needed...
1758             */
1759
1760             if (http2 != http)
1761               httpClose(http2);
1762
1763             if (*host)
1764               return (1);
1765           }
1766         }
1767       }
1768     }
1769     else if ((attr = ippFindAttribute(response, "printer-uri-supported",
1770                                       IPP_TAG_URI)) != NULL)
1771     {
1772       httpSeparateURI(HTTP_URI_CODING_ALL, attr->values[0].string.text,
1773                       scheme, sizeof(scheme), username, sizeof(username),
1774                       host, hostsize, port, resource, resourcesize);
1775       ippDelete(response);
1776
1777       return (1);
1778     }
1779
1780     ippDelete(response);
1781   }
1782
1783   if (cupsLastError() != IPP_NOT_FOUND)
1784     _cupsSetError(IPP_INTERNAL_ERROR, "No printer-uri found!");
1785
1786   *host     = '\0';
1787   *resource = '\0';
1788
1789   return (0);
1790 }
1791
1792
1793 /*
1794  * End of "$Id: util.c 7014 2007-10-10 21:57:43Z mike $".
1795  */