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   int                   i;              /* Looping var */
 289   cups_file_t           *fp;            /* classes.conf file */
 290   int                   linenum;        /* Current line number */
 291   char                  line[4096],     /* Line from file */
 292                         *value,         /* Pointer to value */
 293                         *valueptr;      /* Pointer into value */
 294   cupsd_printer_t       *p,             /* Current printer class */
 295                         *temp;          /* Temporary pointer to printer */
 296
 297
 298  /*
 299   * Open the classes.conf file...
 300   */
 301
 302   snprintf(line, sizeof(line), "%s/classes.conf", ServerRoot);
 303   if ((fp = cupsFileOpen(line, "r")) == NULL)
 304   {
 305     if (errno != ENOENT)
 306       cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to open %s - %s", line,
 307                       strerror(errno));
 308     return;
 309   }
 310
 311  /*
 312   * Read class configurations until we hit EOF...
 313   */
 314
 315   linenum = 0;
 316   p       = NULL;
 317
 318   while (cupsFileGetConf(fp, line, sizeof(line), &value, &linenum))
 319   {
 320    /*
 321     * Decode the directive...
 322     */
 323
 324     if (!strcasecmp(line, "<Class") ||
 325         !strcasecmp(line, "<DefaultClass"))
 326     {
 327      /*
 328       * <Class name> or <DefaultClass name>
 329       */
 330
 331       if (p == NULL && value)
 332       {
 333         cupsdLogMessage(CUPSD_LOG_DEBUG, "Loading class %s...", value);
 334
 335        /*
 336         * Since prior classes may have implicitly defined this class,
 337         * see if it already exists...
 338         */
 339
 340         if ((p = cupsdFindDest(value)) != NULL)
 341         {
 342           p->type = CUPS_PRINTER_CLASS;
 343           cupsdSetStringf(&p->uri, "ipp://%s:%d/classes/%s", ServerName,
 344                           LocalPort, value);
 345           cupsdSetString(&p->error_policy, "retry-job");
 346         }
 347         else
 348           p = cupsdAddClass(value);
 349
 350         p->accepting = 1;
 351         p->state     = IPP_PRINTER_IDLE;
 352
 353         if (!strcasecmp(line, "<DefaultClass"))
 354           DefaultPrinter = p;
 355       }
 356       else
 357         cupsdLogMessage(CUPSD_LOG_ERROR,
 358                         "Syntax error on line %d of classes.conf.", linenum);
 359     }
 360     else if (!strcasecmp(line, "</Class>"))
 361     {
 362       if (p != NULL)
 363       {
 364         cupsdSetPrinterAttrs(p);
 365         p = NULL;
 366       }
 367       else
 368         cupsdLogMessage(CUPSD_LOG_ERROR,
 369                         "Syntax error on line %d of classes.conf.", linenum);
 370     }
 371     else if (!p)
 372     {
 373       cupsdLogMessage(CUPSD_LOG_ERROR,
 374                       "Syntax error on line %d of classes.conf.", linenum);
 375     }
 376     else if (!strcasecmp(line, "AuthInfoRequired"))
 377     {
 378       if (!cupsdSetAuthInfoRequired(p, value, NULL))
 379         cupsdLogMessage(CUPSD_LOG_ERROR,
 380                         "Bad AuthInfoRequired on line %d of classes.conf.",
 381                         linenum);
 382     }
 383     else if (!strcasecmp(line, "Info"))
 384     {
 385       if (value)
 386         cupsdSetString(&p->info, value);
 387     }
 388     else if (!strcasecmp(line, "Location"))
 389     {
 390       if (value)
 391         cupsdSetString(&p->location, value);
 392     }
 393     else if (!strcasecmp(line, "Option") && value)
 394     {
 395      /*
 396       * Option name value
 397       */
 398
 399       for (valueptr = value; *valueptr && !isspace(*valueptr & 255); valueptr ++);
 400
 401       if (!*valueptr)
 402         cupsdLogMessage(CUPSD_LOG_ERROR,
 403                         "Syntax error on line %d of classes.conf.", linenum);
 404       else
 405       {
 406         for (; *valueptr && isspace(*valueptr & 255); *valueptr++ = '\0');
 407
 408         p->num_options = cupsAddOption(value, valueptr, p->num_options,
 409                                        &(p->options));
 410       }
 411     }
 412     else if (!strcasecmp(line, "Printer"))
 413     {
 414       if (!value)
 415       {
 416         cupsdLogMessage(CUPSD_LOG_ERROR,
 417                         "Syntax error on line %d of classes.conf.", linenum);
 418         continue;
 419       }
 420       else if ((temp = cupsdFindPrinter(value)) == NULL)
 421       {
 422         cupsdLogMessage(CUPSD_LOG_WARN,
 423                         "Unknown printer %s on line %d of classes.conf.",
 424                         value, linenum);
 425
 426        /*
 427         * Add the missing remote printer...
 428         */
 429
 430         if ((temp = cupsdAddPrinter(value)) != NULL)
 431         {
 432           cupsdSetString(&temp->make_model, "Remote Printer on unknown");
 433
 434           temp->state       = IPP_PRINTER_STOPPED;
 435           temp->type        |= CUPS_PRINTER_REMOTE;
 436           temp->browse_time = 2147483647;
 437
 438           cupsdSetString(&temp->location, "Location Unknown");
 439           cupsdSetString(&temp->info, "No Information Available");
 440           temp->hostname[0] = '\0';
 441
 442           cupsdSetPrinterAttrs(temp);
 443         }
 444       }
 445
 446       if (temp)
 447         cupsdAddPrinterToClass(p, temp);
 448     }
 449     else if (!strcasecmp(line, "State"))
 450     {
 451      /*
 452       * Set the initial queue state...
 453       */
 454
 455       if (!strcasecmp(value, "idle"))
 456         p->state = IPP_PRINTER_IDLE;
 457       else if (!strcasecmp(value, "stopped"))
 458       {
 459         p->state = IPP_PRINTER_STOPPED;
 460
 461         for (i = 0 ; i < p->num_reasons; i ++)
 462           if (!strcmp("paused", p->reasons[i]))
 463             break;
 464
 465         if (i >= p->num_reasons &&
 466             p->num_reasons < (int)(sizeof(p->reasons) / sizeof(p->reasons[0])))
 467         {
 468           p->reasons[p->num_reasons] = _cupsStrAlloc("paused");
 469           p->num_reasons ++;
 470         }
 471       }
 472       else
 473         cupsdLogMessage(CUPSD_LOG_ERROR,
 474                         "Syntax error on line %d of classes.conf.",
 475                         linenum);
 476     }
 477     else if (!strcasecmp(line, "StateMessage"))
 478     {
 479      /*
 480       * Set the initial queue state message...
 481       */
 482
 483       if (value)
 484         strlcpy(p->state_message, value, sizeof(p->state_message));
 485     }
 486     else if (!strcasecmp(line, "StateTime"))
 487     {
 488      /*
 489       * Set the state time...
 490       */
 491
 492       if (value)
 493         p->state_time = atoi(value);
 494     }
 495     else if (!strcasecmp(line, "Accepting"))
 496     {
 497      /*
 498       * Set the initial accepting state...
 499       */
 500
 501       if (value &&
 502           (!strcasecmp(value, "yes") ||
 503            !strcasecmp(value, "on") ||
 504            !strcasecmp(value, "true")))
 505         p->accepting = 1;
 506       else if (value &&
 507                (!strcasecmp(value, "no") ||
 508                 !strcasecmp(value, "off") ||
 509                 !strcasecmp(value, "false")))
 510         p->accepting = 0;
 511       else
 512         cupsdLogMessage(CUPSD_LOG_ERROR,
 513                         "Syntax error on line %d of classes.conf.",
 514                         linenum);
 515     }
 516     else if (!strcasecmp(line, "Shared"))
 517     {
 518      /*
 519       * Set the initial shared state...
 520       */
 521
 522       if (value &&
 523           (!strcasecmp(value, "yes") ||
 524            !strcasecmp(value, "on") ||
 525            !strcasecmp(value, "true")))
 526         p->shared = 1;
 527       else if (value &&
 528                (!strcasecmp(value, "no") ||
 529                 !strcasecmp(value, "off") ||
 530                 !strcasecmp(value, "false")))
 531         p->shared = 0;
 532       else
 533         cupsdLogMessage(CUPSD_LOG_ERROR,
 534                         "Syntax error on line %d of classes.conf.",
 535                         linenum);
 536     }
 537     else if (!strcasecmp(line, "JobSheets"))
 538     {
 539      /*
 540       * Set the initial job sheets...
 541       */
 542
 543       if (value)
 544       {
 545         for (valueptr = value;
 546              *valueptr && !isspace(*valueptr & 255);
 547              valueptr ++);
 548
 549         if (*valueptr)
 550           *valueptr++ = '\0';
 551
 552         cupsdSetString(&p->job_sheets[0], value);
 553
 554         while (isspace(*valueptr & 255))
 555           valueptr ++;
 556
 557         if (*valueptr)
 558         {
 559           for (value = valueptr;
 560                *valueptr && !isspace(*valueptr & 255);
 561                valueptr ++);
 562
 563           if (*valueptr)
 564             *valueptr = '\0';
 565
 566           cupsdSetString(&p->job_sheets[1], value);
 567         }
 568       }
 569       else
 570         cupsdLogMessage(CUPSD_LOG_ERROR,
 571                         "Syntax error on line %d of classes.conf.", linenum);
 572     }
 573     else if (!strcasecmp(line, "AllowUser"))
 574     {
 575       if (value)
 576       {
 577         p->deny_users = 0;
 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, "DenyUser"))
 585     {
 586       if (value)
 587       {
 588         p->deny_users = 1;
 589         cupsdAddPrinterUser(p, value);
 590       }
 591       else
 592         cupsdLogMessage(CUPSD_LOG_ERROR,
 593                         "Syntax error on line %d of classes.conf.", linenum);
 594     }
 595     else if (!strcasecmp(line, "QuotaPeriod"))
 596     {
 597       if (value)
 598         p->quota_period = atoi(value);
 599       else
 600         cupsdLogMessage(CUPSD_LOG_ERROR,
 601                         "Syntax error on line %d of classes.conf.", linenum);
 602     }
 603     else if (!strcasecmp(line, "PageLimit"))
 604     {
 605       if (value)
 606         p->page_limit = atoi(value);
 607       else
 608         cupsdLogMessage(CUPSD_LOG_ERROR,
 609                         "Syntax error on line %d of classes.conf.", linenum);
 610     }
 611     else if (!strcasecmp(line, "KLimit"))
 612     {
 613       if (value)
 614         p->k_limit = atoi(value);
 615       else
 616         cupsdLogMessage(CUPSD_LOG_ERROR,
 617                         "Syntax error on line %d of classes.conf.", linenum);
 618     }
 619     else if (!strcasecmp(line, "OpPolicy"))
 620     {
 621       if (value)
 622       {
 623         cupsd_policy_t *pol;            /* Policy */
 624
 625
 626         if ((pol = cupsdFindPolicy(value)) != NULL)
 627         {
 628           cupsdSetString(&p->op_policy, value);
 629           p->op_policy_ptr = pol;
 630         }
 631         else
 632           cupsdLogMessage(CUPSD_LOG_ERROR,
 633                           "Bad policy \"%s\" on line %d of classes.conf",
 634                           value, linenum);
 635       }
 636       else
 637         cupsdLogMessage(CUPSD_LOG_ERROR,
 638                         "Syntax error on line %d of classes.conf.", linenum);
 639     }
 640     else if (!strcasecmp(line, "ErrorPolicy"))
 641     {
 642       if (value)
 643       {
 644         if (strcmp(value, "retry-current-job") && strcmp(value, "retry-job"))
 645           cupsdLogMessage(CUPSD_LOG_WARN,
 646                           "ErrorPolicy %s ignored on line %d of classes.conf",
 647                           value, linenum);
 648       }
 649       else
 650         cupsdLogMessage(CUPSD_LOG_ERROR,
 651                         "Syntax error on line %d of classes.conf.", linenum);
 652     }
 653     else
 654     {
 655      /*
 656       * Something else we don't understand...
 657       */
 658
 659       cupsdLogMessage(CUPSD_LOG_ERROR,
 660                       "Unknown configuration directive %s on line %d of classes.conf.",
 661                       line, linenum);
 662     }
 663   }
 664
 665   cupsFileClose(fp);
 666 }
 667
 668
 669 /*
 670  * 'cupsdSaveAllClasses()' - Save classes to the classes.conf file.
 671  */
 672
 673 void
 674 cupsdSaveAllClasses(void)
 675 {
 676   cups_file_t           *fp;            /* classes.conf file */
 677   char                  temp[1024],     /* Temporary string */
 678                         backup[1024],   /* printers.conf.O file */
 679                         value[2048];    /* Value string */
 680   cupsd_printer_t       *pclass;        /* Current printer class */
 681   int                   i;              /* Looping var */
 682   time_t                curtime;        /* Current time */
 683   struct tm             *curdate;       /* Current date */
 684   cups_option_t         *option;        /* Current option */
 685
 686
 687  /*
 688   * Create the classes.conf file...
 689   */
 690
 691   snprintf(temp, sizeof(temp), "%s/classes.conf", ServerRoot);
 692   snprintf(backup, sizeof(backup), "%s/classes.conf.O", ServerRoot);
 693
 694   if (rename(temp, backup))
 695   {
 696     if (errno != ENOENT)
 697       cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to backup classes.conf - %s",
 698                       strerror(errno));
 699   }
 700
 701   if ((fp = cupsFileOpen(temp, "w")) == NULL)
 702   {
 703     cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to save classes.conf - %s",
 704                     strerror(errno));
 705
 706     if (rename(backup, temp))
 707       cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to restore classes.conf - %s",
 708                       strerror(errno));
 709     return;
 710   }
 711   else
 712     cupsdLogMessage(CUPSD_LOG_INFO, "Saving classes.conf...");
 713
 714  /*
 715   * Restrict access to the file...
 716   */
 717
 718   fchown(cupsFileNumber(fp), RunUser, Group);
 719   fchmod(cupsFileNumber(fp), 0600);
 720
 721  /*
 722   * Write a small header to the file...
 723   */
 724
 725   curtime = time(NULL);
 726   curdate = localtime(&curtime);
 727   strftime(temp, sizeof(temp) - 1, "%Y-%m-%d %H:%M", curdate);
 728
 729   cupsFilePuts(fp, "# Class configuration file for " CUPS_SVERSION "\n");
 730   cupsFilePrintf(fp, "# Written by cupsd on %s\n", temp);
 731
 732  /*
 733   * Write each local class known to the system...
 734   */
 735
 736   for (pclass = (cupsd_printer_t *)cupsArrayFirst(Printers);
 737        pclass;
 738        pclass = (cupsd_printer_t *)cupsArrayNext(Printers))
 739   {
 740    /*
 741     * Skip remote destinations and regular printers...
 742     */
 743
 744     if ((pclass->type & CUPS_PRINTER_REMOTE) ||
 745         (pclass->type & CUPS_PRINTER_IMPLICIT) ||
 746         !(pclass->type & CUPS_PRINTER_CLASS))
 747       continue;
 748
 749    /*
 750     * Write printers as needed...
 751     */
 752
 753     if (pclass == DefaultPrinter)
 754       cupsFilePrintf(fp, "<DefaultClass %s>\n", pclass->name);
 755     else
 756       cupsFilePrintf(fp, "<Class %s>\n", pclass->name);
 757
 758     if (pclass->num_auth_info_required > 0)
 759     {
 760       switch (pclass->num_auth_info_required)
 761       {
 762         case 1 :
 763             strlcpy(value, pclass->auth_info_required[0], sizeof(value));
 764             break;
 765
 766         case 2 :
 767             snprintf(value, sizeof(value), "%s,%s",
 768                      pclass->auth_info_required[0],
 769                      pclass->auth_info_required[1]);
 770             break;
 771
 772         case 3 :
 773         default :
 774             snprintf(value, sizeof(value), "%s,%s,%s",
 775                      pclass->auth_info_required[0],
 776                      pclass->auth_info_required[1],
 777                      pclass->auth_info_required[2]);
 778             break;
 779       }
 780
 781       cupsFilePutConf(fp, "AuthInfoRequired", value);
 782     }
 783
 784     if (pclass->info)
 785       cupsFilePutConf(fp, "Info", pclass->info);
 786
 787     if (pclass->location)
 788       cupsFilePutConf(fp, "Location", pclass->location);
 789
 790     if (pclass->state == IPP_PRINTER_STOPPED)
 791       cupsFilePuts(fp, "State Stopped\n");
 792     else
 793       cupsFilePuts(fp, "State Idle\n");
 794
 795     cupsFilePrintf(fp, "StateTime %d\n", (int)pclass->state_time);
 796
 797     if (pclass->accepting)
 798       cupsFilePuts(fp, "Accepting Yes\n");
 799     else
 800       cupsFilePuts(fp, "Accepting No\n");
 801
 802     if (pclass->shared)
 803       cupsFilePuts(fp, "Shared Yes\n");
 804     else
 805       cupsFilePuts(fp, "Shared No\n");
 806
 807     snprintf(value, sizeof(value), "%s %s", pclass->job_sheets[0],
 808              pclass->job_sheets[1]);
 809     cupsFilePutConf(fp, "JobSheets", value);
 810
 811     for (i = 0; i < pclass->num_printers; i ++)
 812       cupsFilePrintf(fp, "Printer %s\n", pclass->printers[i]->name);
 813
 814     cupsFilePrintf(fp, "QuotaPeriod %d\n", pclass->quota_period);
 815     cupsFilePrintf(fp, "PageLimit %d\n", pclass->page_limit);
 816     cupsFilePrintf(fp, "KLimit %d\n", pclass->k_limit);
 817
 818     for (i = 0; i < pclass->num_users; i ++)
 819       cupsFilePutConf(fp, pclass->deny_users ? "DenyUser" : "AllowUser",
 820                       pclass->users[i]);
 821
 822      if (pclass->op_policy)
 823       cupsFilePutConf(fp, "OpPolicy", pclass->op_policy);
 824     if (pclass->error_policy)
 825       cupsFilePutConf(fp, "ErrorPolicy", pclass->error_policy);
 826
 827     for (i = pclass->num_options, option = pclass->options;
 828          i > 0;
 829          i --, option ++)
 830     {
 831       snprintf(value, sizeof(value), "%s %s", option->name, option->value);
 832       cupsFilePutConf(fp, "Option", value);
 833     }
 834
 835     cupsFilePuts(fp, "</Class>\n");
 836   }
 837
 838   cupsFileClose(fp);
 839 }
 840
 841
 842 /*
 843  * 'cupsdUpdateImplicitClasses()' - Update the accepting state of implicit
 844  *                                  classes.
 845  */
 846
 847 void
 848 cupsdUpdateImplicitClasses(void)
 849 {
 850   int                   i;              /* Looping var */
 851   cupsd_printer_t       *pclass;        /* Current class */
 852   int                   accepting;      /* printer-is-accepting-jobs value */
 853
 854
 855   for (pclass = (cupsd_printer_t *)cupsArrayFirst(ImplicitPrinters);
 856        pclass;
 857        pclass = (cupsd_printer_t *)cupsArrayNext(ImplicitPrinters))
 858   {
 859    /*
 860     * Loop through the printers to come up with a composite state...
 861     */
 862
 863     for (i = 0, accepting = 0; i < pclass->num_printers; i ++)
 864       if ((accepting = pclass->printers[i]->accepting) != 0)
 865         break;
 866
 867     pclass->accepting = accepting;
 868   }
 869 }
 870
 871
 872 /*
 873  * End of "$Id: classes.c 7724 2008-07-14 06:06:06Z mike $".
 874  */