scheduler/classes.c

   1 /*
   2  * "$Id: classes.c 7724 2008-07-14 06:06:06Z mike $"
   3  *
   4  *   Printer class routines for the Common UNIX Printing System (CUPS).
   5  *
   6  *   Copyright 2007-2009 by Apple Inc.
   7  *   Copyright 1997-2007 by Easy Software Products, all rights reserved.
   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  * Contents:
  16  *
  17  *   cupsdAddClass()                 - Add a class to the system.
  18  *   cupsdAddPrinterToClass()        - Add a printer to a class...
  19  *   cupsdDeletePrinterFromClass()   - Delete a printer from a class.
  20  *   cupsdDeletePrinterFromClasses() - Delete a printer from all classes.
  21  *   cupsdFindAvailablePrinter()     - Find an available printer in a class.
  22  *   cupsdFindClass()                - Find the named class.
  23  *   cupsdLoadAllClasses()           - Load classes from the classes.conf file.
  24  *   cupsdSaveAllClasses()           - Save classes to the classes.conf file.
  25  *   cupsdUpdateImplicitClasses()    - Update the accepting state of implicit
  26  *                                     classes.
  27  */
  28
  29 /*
  30  * Include necessary headers...
  31  */
  32
  33 #include "cupsd.h"
  34
  35
  36 /*
  37  * 'cupsdAddClass()' - Add a class to the system.
  38  */
  39
  40 cupsd_printer_t *                       /* O - New class */
  41 cupsdAddClass(const char *name)         /* I - Name of class */
  42 {
  43   cupsd_printer_t       *c;             /* New class */
  44
  45
  46  /*
  47   * Add the printer and set the type to "class"...
  48   */
  49
  50   if ((c = cupsdAddPrinter(name)) != NULL)
  51   {
  52    /*
  53     * Change from a printer to a class...
  54     */
  55
  56     c->type = CUPS_PRINTER_CLASS;
  57
  58     cupsdSetStringf(&c->uri, "ipp://%s:%d/classes/%s", ServerName, RemotePort,
  59                     name);
  60     cupsdSetString(&c->error_policy, "retry-current-job");
  61   }
  62
  63   return (c);
  64 }
  65
  66
  67 /*
  68  * 'cupsdAddPrinterToClass()' - Add a printer to a class...
  69  */
  70
  71 void
  72 cupsdAddPrinterToClass(
  73     cupsd_printer_t *c,                 /* I - Class to add to */
  74     cupsd_printer_t *p)                 /* I - Printer to add */
  75 {
  76   int                   i;              /* Looping var */
  77   cupsd_printer_t       **temp;         /* Pointer to printer array */
  78
  79
  80  /*
  81   * See if this printer is already a member of the class...
  82   */
  83
  84   for (i = 0; i < c->num_printers; i ++)
  85     if (c->printers[i] == p)
  86       return;
  87
  88  /*
  89   * Allocate memory as needed...
  90   */
  91
  92   if (c->num_printers == 0)
  93     temp = malloc(sizeof(cupsd_printer_t *));
  94   else
  95     temp = realloc(c->printers, sizeof(cupsd_printer_t *) * (c->num_printers + 1));
  96
  97   if (temp == NULL)
  98   {
  99     cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to add printer %s to class %s!",
 100                     p->name, c->name);
 101     return;
 102   }
 103
 104  /*
 105   * Add the printer to the end of the array and update the number of printers.
 106   */
 107
 108   c->printers = temp;
 109   temp        += c->num_printers;
 110   c->num_printers ++;
 111
 112   *temp = p;
 113 }
 114
 115
 116 /*
 117  * 'cupsdDeletePrinterFromClass()' - Delete a printer from a class.
 118  */
 119
 120 void
 121 cupsdDeletePrinterFromClass(
 122     cupsd_printer_t *c,                 /* I - Class to delete from */
 123     cupsd_printer_t *p)                 /* I - Printer to delete */
 124 {
 125   int   i;                              /* Looping var */
 126
 127
 128  /*
 129   * See if the printer is in the class...
 130   */
 131
 132   for (i = 0; i < c->num_printers; i ++)
 133     if (p == c->printers[i])
 134       break;
 135
 136  /*
 137   * If it is, remove it from the list...
 138   */
 139
 140   if (i < c->num_printers)
 141   {
 142    /*
 143     * Yes, remove the printer...
 144     */
 145
 146     c->num_printers --;
 147     if (i < c->num_printers)
 148       memmove(c->printers + i, c->printers + i + 1,
 149               (c->num_printers - i) * sizeof(cupsd_printer_t *));
 150   }
 151   else
 152     return;
 153
 154  /*
 155   * Update the IPP attributes (have to do this for member-names)...
 156   */
 157
 158   cupsdSetPrinterAttrs(c);
 159 }
 160
 161
 162 /*
 163  * 'cupsdDeletePrinterFromClasses()' - Delete a printer from all classes.
 164  */
 165
 166 void
 167 cupsdDeletePrinterFromClasses(
 168     cupsd_printer_t *p)                 /* I - Printer to delete */
 169 {
 170   cupsd_printer_t       *c;             /* Pointer to current class */
 171
 172
 173  /*
 174   * Loop through the printer/class list and remove the printer
 175   * from each class listed...
 176   */
 177
 178   for (c = (cupsd_printer_t *)cupsArrayFirst(Printers);
 179        c;
 180        c = (cupsd_printer_t *)cupsArrayNext(Printers))
 181     if (c->type & (CUPS_PRINTER_CLASS | CUPS_PRINTER_IMPLICIT))
 182       cupsdDeletePrinterFromClass(c, p);
 183
 184  /*
 185   * Then clean out any empty implicit classes...
 186   */
 187
 188   for (c = (cupsd_printer_t *)cupsArrayFirst(ImplicitPrinters);
 189        c;
 190        c = (cupsd_printer_t *)cupsArrayNext(ImplicitPrinters))
 191     if (c->num_printers == 0)
 192     {
 193       cupsdLogMessage(CUPSD_LOG_DEBUG, "Deleting implicit class \"%s\"...",
 194                       c->name);
 195       cupsdDeletePrinter(c, 0);
 196     }
 197 }
 198
 199
 200 /*
 201  * 'cupsdFindAvailablePrinter()' - Find an available printer in a class.
 202  */
 203
 204 cupsd_printer_t *                       /* O - Available printer or NULL */
 205 cupsdFindAvailablePrinter(
 206     const char *name)                   /* I - Class to check */
 207 {
 208   int                   i;              /* Looping var */
 209   cupsd_printer_t       *c;             /* Printer class */
 210
 211
 212  /*
 213   * Find the class...
 214   */
 215
 216   if ((c = cupsdFindClass(name)) == NULL)
 217   {
 218     cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to find class \"%s\"!", name);
 219     return (NULL);
 220   }
 221
 222   if (c->num_printers == 0)
 223     return (NULL);
 224
 225  /*
 226   * Make sure that the last printer is also a valid index into the printer
 227   * array.  If not, reset the last printer to 0...
 228   */
 229
 230   if (c->last_printer >= c->num_printers)
 231     c->last_printer = 0;
 232
 233  /*
 234   * Loop through the printers in the class and return the first idle
 235   * printer...  We keep track of the last printer that we used so that
 236   * a "round robin" type of scheduling is realized (otherwise the first
 237   * server might be saturated with print jobs...)
 238   *
 239   * Thanks to Joel Fredrikson for helping us get this right!
 240   */
 241
 242   for (i = c->last_printer + 1; ; i ++)
 243   {
 244     if (i >= c->num_printers)
 245       i = 0;
 246
 247     if (c->printers[i]->accepting &&
 248         (c->printers[i]->state == IPP_PRINTER_IDLE ||
 249          ((c->printers[i]->type & CUPS_PRINTER_REMOTE) && !c->printers[i]->job)))
 250     {
 251       c->last_printer = i;
 252       return (c->printers[i]);
 253     }
 254
 255     if (i == c->last_printer)
 256       break;
 257   }
 258
 259   return (NULL);
 260 }
 261
 262
 263 /*
 264  * 'cupsdFindClass()' - Find the named class.
 265  */
 266
 267 cupsd_printer_t *                       /* O - Matching class or NULL */
 268 cupsdFindClass(const char *name)        /* I - Name of class */
 269 {
 270   cupsd_printer_t       *c;             /* Current class/printer */
 271
 272
 273   if ((c = cupsdFindDest(name)) != NULL &&
 274       (c->type & (CUPS_PRINTER_CLASS | CUPS_PRINTER_IMPLICIT)))
 275     return (c);
 276   else
 277     return (NULL);
 278 }
 279
 280
 281 /*
 282  * 'cupsdLoadAllClasses()' - Load classes from the classes.conf file.
 283  */
 284
 285 void
 286 cupsdLoadAllClasses(void)
 287 {
 288   cups_file_t           *fp;            /* classes.conf file */
 289   int                   linenum;        /* Current line number */
 290   char                  line[4096],     /* Line from file */
 291                         *value,         /* Pointer to value */
 292                         *valueptr;      /* Pointer into value */
 293   cupsd_printer_t       *p,             /* Current printer class */
 294                         *temp;          /* Temporary pointer to printer */
 295
 296
 297  /*
 298   * Open the classes.conf file...
 299   */
 300
 301   snprintf(line, sizeof(line), "%s/classes.conf", ServerRoot);
 302   if ((fp = cupsFileOpen(line, "r")) == NULL)
 303   {
 304     if (errno != ENOENT)
 305       cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to open %s - %s", line,
 306                       strerror(errno));
 307     return;
 308   }
 309
 310  /*
 311   * Read class configurations until we hit EOF...
 312   */
 313
 314   linenum = 0;
 315   p       = NULL;
 316
 317   while (cupsFileGetConf(fp, line, sizeof(line), &value, &linenum))
 318   {
 319    /*
 320     * Decode the directive...
 321     */
 322
 323     if (!strcasecmp(line, "<Class") ||
 324         !strcasecmp(line, "<DefaultClass"))
 325     {
 326      /*
 327       * <Class name> or <DefaultClass name>
 328       */
 329
 330       if (p == NULL && value)
 331       {
 332         cupsdLogMessage(CUPSD_LOG_DEBUG, "Loading class %s...", value);
 333
 334        /*
 335         * Since prior classes may have implicitly defined this class,
 336         * see if it already exists...
 337         */
 338
 339         if ((p = cupsdFindDest(value)) != NULL)
 340         {
 341           p->type = CUPS_PRINTER_CLASS;
 342           cupsdSetStringf(&p->uri, "ipp://%s:%d/classes/%s", ServerName,
 343                           LocalPort, value);
 344           cupsdSetString(&p->error_policy, "retry-job");
 345         }
 346         else
 347           p = cupsdAddClass(value);
 348
 349         p->accepting = 1;
 350         p->state     = IPP_PRINTER_IDLE;
 351
 352         if (!strcasecmp(line, "<DefaultClass"))
 353           DefaultPrinter = p;
 354       }
 355       else
 356         cupsdLogMessage(CUPSD_LOG_ERROR,
 357                         "Syntax error on line %d of classes.conf.", linenum);
 358     }
 359     else if (!strcasecmp(line, "</Class>"))
 360     {
 361       if (p != NULL)
 362       {
 363         cupsdSetPrinterAttrs(p);
 364         p = NULL;
 365       }
 366       else
 367         cupsdLogMessage(CUPSD_LOG_ERROR,
 368                         "Syntax error on line %d of classes.conf.", linenum);
 369     }
 370     else if (!p)
 371     {
 372       cupsdLogMessage(CUPSD_LOG_ERROR,
 373                       "Syntax error on line %d of classes.conf.", linenum);
 374     }
 375     else if (!strcasecmp(line, "AuthInfoRequired"))
 376     {
 377       if (!cupsdSetAuthInfoRequired(p, value, NULL))
 378         cupsdLogMessage(CUPSD_LOG_ERROR,
 379                         "Bad AuthInfoRequired on line %d of classes.conf.",
 380                         linenum);
 381     }
 382     else if (!strcasecmp(line, "Info"))
 383     {
 384       if (value)
 385         cupsdSetString(&p->info, value);
 386     }
 387     else if (!strcasecmp(line, "Location"))
 388     {
 389       if (value)
 390         cupsdSetString(&p->location, value);
 391     }
 392     else if (!strcasecmp(line, "Option") && value)
 393     {
 394      /*
 395       * Option name value
 396       */
 397
 398       for (valueptr = value; *valueptr && !isspace(*valueptr & 255); valueptr ++);
 399
 400       if (!*valueptr)
 401         cupsdLogMessage(CUPSD_LOG_ERROR,
 402                         "Syntax error on line %d of classes.conf.", linenum);
 403       else
 404       {
 405         for (; *valueptr && isspace(*valueptr & 255); *valueptr++ = '\0');
 406
 407         p->num_options = cupsAddOption(value, valueptr, p->num_options,
 408                                        &(p->options));
 409       }
 410     }
 411     else if (!strcasecmp(line, "Printer"))
 412     {
 413       if (!value)
 414       {
 415         cupsdLogMessage(CUPSD_LOG_ERROR,
 416                         "Syntax error on line %d of classes.conf.", linenum);
 417         continue;
 418       }
 419       else if ((temp = cupsdFindPrinter(value)) == NULL)
 420       {
 421         cupsdLogMessage(CUPSD_LOG_WARN,
 422                         "Unknown printer %s on line %d of classes.conf.",
 423                         value, linenum);
 424
 425        /*
 426         * Add the missing remote printer...
 427         */
 428
 429         if ((temp = cupsdAddPrinter(value)) != NULL)
 430         {
 431           cupsdSetString(&temp->make_model, "Remote Printer on unknown");
 432
 433           temp->state       = IPP_PRINTER_STOPPED;
 434           temp->type        |= CUPS_PRINTER_REMOTE;
 435           temp->browse_time = 2147483647;
 436
 437           cupsdSetString(&temp->location, "Location Unknown");
 438           cupsdSetString(&temp->info, "No Information Available");
 439           temp->hostname[0] = '\0';
 440
 441           cupsdSetPrinterAttrs(temp);
 442         }
 443       }
 444
 445       if (temp)
 446         cupsdAddPrinterToClass(p, temp);
 447     }
 448     else if (!strcasecmp(line, "State"))
 449     {
 450      /*
 451       * Set the initial queue state...
 452       */
 453
 454       if (!strcasecmp(value, "idle"))
 455         p->state = IPP_PRINTER_IDLE;
 456       else if (!strcasecmp(value, "stopped"))
 457       {
 458         p->state = IPP_PRINTER_STOPPED;
 459         cupsdSetPrinterReasons(p, "+paused");
 460       }
 461       else
 462         cupsdLogMessage(CUPSD_LOG_ERROR,
 463                         "Syntax error on line %d of classes.conf.",
 464                         linenum);
 465     }
 466     else if (!strcasecmp(line, "StateMessage"))
 467     {
 468      /*
 469       * Set the initial queue state message...
 470       */
 471
 472       if (value)
 473         strlcpy(p->state_message, value, sizeof(p->state_message));
 474     }
 475     else if (!strcasecmp(line, "StateTime"))
 476     {
 477      /*
 478       * Set the state time...
 479       */
 480
 481       if (value)
 482         p->state_time = atoi(value);
 483     }
 484     else if (!strcasecmp(line, "Accepting"))
 485     {
 486      /*
 487       * Set the initial accepting state...
 488       */
 489
 490       if (value &&
 491           (!strcasecmp(value, "yes") ||
 492            !strcasecmp(value, "on") ||
 493            !strcasecmp(value, "true")))
 494         p->accepting = 1;
 495       else if (value &&
 496                (!strcasecmp(value, "no") ||
 497                 !strcasecmp(value, "off") ||
 498                 !strcasecmp(value, "false")))
 499         p->accepting = 0;
 500       else
 501         cupsdLogMessage(CUPSD_LOG_ERROR,
 502                         "Syntax error on line %d of classes.conf.",
 503                         linenum);
 504     }
 505     else if (!strcasecmp(line, "Shared"))
 506     {
 507      /*
 508       * Set the initial shared state...
 509       */
 510
 511       if (value &&
 512           (!strcasecmp(value, "yes") ||
 513            !strcasecmp(value, "on") ||
 514            !strcasecmp(value, "true")))
 515         p->shared = 1;
 516       else if (value &&
 517                (!strcasecmp(value, "no") ||
 518                 !strcasecmp(value, "off") ||
 519                 !strcasecmp(value, "false")))
 520         p->shared = 0;
 521       else
 522         cupsdLogMessage(CUPSD_LOG_ERROR,
 523                         "Syntax error on line %d of classes.conf.",
 524                         linenum);
 525     }
 526     else if (!strcasecmp(line, "JobSheets"))
 527     {
 528      /*
 529       * Set the initial job sheets...
 530       */
 531
 532       if (value)
 533       {
 534         for (valueptr = value;
 535              *valueptr && !isspace(*valueptr & 255);
 536              valueptr ++);
 537
 538         if (*valueptr)
 539           *valueptr++ = '\0';
 540
 541         cupsdSetString(&p->job_sheets[0], value);
 542
 543         while (isspace(*valueptr & 255))
 544           valueptr ++;
 545
 546         if (*valueptr)
 547         {
 548           for (value = valueptr;
 549                *valueptr && !isspace(*valueptr & 255);
 550                valueptr ++);
 551
 552           if (*valueptr)
 553             *valueptr = '\0';
 554
 555           cupsdSetString(&p->job_sheets[1], value);
 556         }
 557       }
 558       else
 559         cupsdLogMessage(CUPSD_LOG_ERROR,
 560                         "Syntax error on line %d of classes.conf.", linenum);
 561     }
 562     else if (!strcasecmp(line, "AllowUser"))
 563     {
 564       if (value)
 565       {
 566         p->deny_users = 0;
 567         cupsdAddPrinterUser(p, value);
 568       }
 569       else
 570         cupsdLogMessage(CUPSD_LOG_ERROR,
 571                         "Syntax error on line %d of classes.conf.", linenum);
 572     }
 573     else if (!strcasecmp(line, "DenyUser"))
 574     {
 575       if (value)
 576       {
 577         p->deny_users = 1;
 578         cupsdAddPrinterUser(p, value);
 579       }
 580       else
 581         cupsdLogMessage(CUPSD_LOG_ERROR,
 582                         "Syntax error on line %d of classes.conf.", linenum);
 583     }
 584     else if (!strcasecmp(line, "QuotaPeriod"))
 585     {
 586       if (value)
 587         p->quota_period = atoi(value);
 588       else
 589         cupsdLogMessage(CUPSD_LOG_ERROR,
 590                         "Syntax error on line %d of classes.conf.", linenum);
 591     }
 592     else if (!strcasecmp(line, "PageLimit"))
 593     {
 594       if (value)
 595         p->page_limit = atoi(value);
 596       else
 597         cupsdLogMessage(CUPSD_LOG_ERROR,
 598                         "Syntax error on line %d of classes.conf.", linenum);
 599     }
 600     else if (!strcasecmp(line, "KLimit"))
 601     {
 602       if (value)
 603         p->k_limit = atoi(value);
 604       else
 605         cupsdLogMessage(CUPSD_LOG_ERROR,
 606                         "Syntax error on line %d of classes.conf.", linenum);
 607     }
 608     else if (!strcasecmp(line, "OpPolicy"))
 609     {
 610       if (value)
 611       {
 612         cupsd_policy_t *pol;            /* Policy */
 613
 614
 615         if ((pol = cupsdFindPolicy(value)) != NULL)
 616         {
 617           cupsdSetString(&p->op_policy, value);
 618           p->op_policy_ptr = pol;
 619         }
 620         else
 621           cupsdLogMessage(CUPSD_LOG_ERROR,
 622                           "Bad policy \"%s\" on line %d of classes.conf",
 623                           value, linenum);
 624       }
 625       else
 626         cupsdLogMessage(CUPSD_LOG_ERROR,
 627                         "Syntax error on line %d of classes.conf.", linenum);
 628     }
 629     else if (!strcasecmp(line, "ErrorPolicy"))
 630     {
 631       if (value)
 632       {
 633         if (strcmp(value, "retry-current-job") && strcmp(value, "retry-job"))
 634           cupsdLogMessage(CUPSD_LOG_WARN,
 635                           "ErrorPolicy %s ignored on line %d of classes.conf",
 636                           value, linenum);
 637       }
 638       else
 639         cupsdLogMessage(CUPSD_LOG_ERROR,
 640                         "Syntax error on line %d of classes.conf.", linenum);
 641     }
 642     else
 643     {
 644      /*
 645       * Something else we don't understand...
 646       */
 647
 648       cupsdLogMessage(CUPSD_LOG_ERROR,
 649                       "Unknown configuration directive %s on line %d of classes.conf.",
 650                       line, linenum);
 651     }
 652   }
 653
 654   cupsFileClose(fp);
 655 }
 656
 657
 658 /*
 659  * 'cupsdSaveAllClasses()' - Save classes to the classes.conf file.
 660  */
 661
 662 void
 663 cupsdSaveAllClasses(void)
 664 {
 665   cups_file_t           *fp;            /* classes.conf file */
 666   char                  temp[1024],     /* Temporary string */
 667                         backup[1024],   /* printers.conf.O file */
 668                         value[2048];    /* Value string */
 669   cupsd_printer_t       *pclass;        /* Current printer class */
 670   int                   i;              /* Looping var */
 671   time_t                curtime;        /* Current time */
 672   struct tm             *curdate;       /* Current date */
 673   cups_option_t         *option;        /* Current option */
 674
 675
 676  /*
 677   * Create the classes.conf file...
 678   */
 679
 680   snprintf(temp, sizeof(temp), "%s/classes.conf", ServerRoot);
 681   snprintf(backup, sizeof(backup), "%s/classes.conf.O", ServerRoot);
 682
 683   if (rename(temp, backup))
 684   {
 685     if (errno != ENOENT)
 686       cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to backup classes.conf - %s",
 687                       strerror(errno));
 688   }
 689
 690   if ((fp = cupsFileOpen(temp, "w")) == NULL)
 691   {
 692     cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to save classes.conf - %s",
 693                     strerror(errno));
 694
 695     if (rename(backup, temp))
 696       cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to restore classes.conf - %s",
 697                       strerror(errno));
 698     return;
 699   }
 700   else
 701     cupsdLogMessage(CUPSD_LOG_INFO, "Saving classes.conf...");
 702
 703  /*
 704   * Restrict access to the file...
 705   */
 706
 707   fchown(cupsFileNumber(fp), RunUser, Group);
 708   fchmod(cupsFileNumber(fp), 0600);
 709
 710  /*
 711   * Write a small header to the file...
 712   */
 713
 714   curtime = time(NULL);
 715   curdate = localtime(&curtime);
 716   strftime(temp, sizeof(temp) - 1, "%Y-%m-%d %H:%M", curdate);
 717
 718   cupsFilePuts(fp, "# Class configuration file for " CUPS_SVERSION "\n");
 719   cupsFilePrintf(fp, "# Written by cupsd on %s\n", temp);
 720
 721  /*
 722   * Write each local class known to the system...
 723   */
 724
 725   for (pclass = (cupsd_printer_t *)cupsArrayFirst(Printers);
 726        pclass;
 727        pclass = (cupsd_printer_t *)cupsArrayNext(Printers))
 728   {
 729    /*
 730     * Skip remote destinations and regular printers...
 731     */
 732
 733     if ((pclass->type & CUPS_PRINTER_REMOTE) ||
 734         (pclass->type & CUPS_PRINTER_IMPLICIT) ||
 735         !(pclass->type & CUPS_PRINTER_CLASS))
 736       continue;
 737
 738    /*
 739     * Write printers as needed...
 740     */
 741
 742     if (pclass == DefaultPrinter)
 743       cupsFilePrintf(fp, "<DefaultClass %s>\n", pclass->name);
 744     else
 745       cupsFilePrintf(fp, "<Class %s>\n", pclass->name);
 746
 747     if (pclass->num_auth_info_required > 0)
 748     {
 749       switch (pclass->num_auth_info_required)
 750       {
 751         case 1 :
 752             strlcpy(value, pclass->auth_info_required[0], sizeof(value));
 753             break;
 754
 755         case 2 :
 756             snprintf(value, sizeof(value), "%s,%s",
 757                      pclass->auth_info_required[0],
 758                      pclass->auth_info_required[1]);
 759             break;
 760
 761         case 3 :
 762         default :
 763             snprintf(value, sizeof(value), "%s,%s,%s",
 764                      pclass->auth_info_required[0],
 765                      pclass->auth_info_required[1],
 766                      pclass->auth_info_required[2]);
 767             break;
 768       }
 769
 770       cupsFilePutConf(fp, "AuthInfoRequired", value);
 771     }
 772
 773     if (pclass->info)
 774       cupsFilePutConf(fp, "Info", pclass->info);
 775
 776     if (pclass->location)
 777       cupsFilePutConf(fp, "Location", pclass->location);
 778
 779     if (pclass->state == IPP_PRINTER_STOPPED)
 780       cupsFilePuts(fp, "State Stopped\n");
 781     else
 782       cupsFilePuts(fp, "State Idle\n");
 783
 784     cupsFilePrintf(fp, "StateTime %d\n", (int)pclass->state_time);
 785
 786     if (pclass->accepting)
 787       cupsFilePuts(fp, "Accepting Yes\n");
 788     else
 789       cupsFilePuts(fp, "Accepting No\n");
 790
 791     if (pclass->shared)
 792       cupsFilePuts(fp, "Shared Yes\n");
 793     else
 794       cupsFilePuts(fp, "Shared No\n");
 795
 796     snprintf(value, sizeof(value), "%s %s", pclass->job_sheets[0],
 797              pclass->job_sheets[1]);
 798     cupsFilePutConf(fp, "JobSheets", value);
 799
 800     for (i = 0; i < pclass->num_printers; i ++)
 801       cupsFilePrintf(fp, "Printer %s\n", pclass->printers[i]->name);
 802
 803     cupsFilePrintf(fp, "QuotaPeriod %d\n", pclass->quota_period);
 804     cupsFilePrintf(fp, "PageLimit %d\n", pclass->page_limit);
 805     cupsFilePrintf(fp, "KLimit %d\n", pclass->k_limit);
 806
 807     for (i = 0; i < pclass->num_users; i ++)
 808       cupsFilePutConf(fp, pclass->deny_users ? "DenyUser" : "AllowUser",
 809                       pclass->users[i]);
 810
 811      if (pclass->op_policy)
 812       cupsFilePutConf(fp, "OpPolicy", pclass->op_policy);
 813     if (pclass->error_policy)
 814       cupsFilePutConf(fp, "ErrorPolicy", pclass->error_policy);
 815
 816     for (i = pclass->num_options, option = pclass->options;
 817          i > 0;
 818          i --, option ++)
 819     {
 820       snprintf(value, sizeof(value), "%s %s", option->name, option->value);
 821       cupsFilePutConf(fp, "Option", value);
 822     }
 823
 824     cupsFilePuts(fp, "</Class>\n");
 825   }
 826
 827   cupsFileClose(fp);
 828 }
 829
 830
 831 /*
 832  * 'cupsdUpdateImplicitClasses()' - Update the accepting state of implicit
 833  *                                  classes.
 834  */
 835
 836 void
 837 cupsdUpdateImplicitClasses(void)
 838 {
 839   int                   i;              /* Looping var */
 840   cupsd_printer_t       *pclass;        /* Current class */
 841   int                   accepting;      /* printer-is-accepting-jobs value */
 842
 843
 844   for (pclass = (cupsd_printer_t *)cupsArrayFirst(ImplicitPrinters);
 845        pclass;
 846        pclass = (cupsd_printer_t *)cupsArrayNext(ImplicitPrinters))
 847   {
 848    /*
 849     * Loop through the printers to come up with a composite state...
 850     */
 851
 852     for (i = 0, accepting = 0; i < pclass->num_printers; i ++)
 853       if ((accepting = pclass->printers[i]->accepting) != 0)
 854         break;
 855
 856     pclass->accepting = accepting;
 857   }
 858 }
 859
 860
 861 /*
 862  * End of "$Id: classes.c 7724 2008-07-14 06:06:06Z mike $".
 863  */