cups/encode.c

   1 /*
   2  * "$Id: encode.c 6649 2007-07-11 21:46:42Z mike $"
   3  *
   4  *   Option encoding routines for the Common UNIX Printing System (CUPS).
   5  *
   6  *   Copyright 2007-2008 by Apple Inc.
   7  *   Copyright 1997-2007 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  *   cupsEncodeOptions()   - Encode printer options into IPP attributes.
  20  *   cupsEncodeOptions2()  - Encode printer options into IPP attributes for
  21  *                           a group.
  22  *   _ippFindOption()      - Find the attribute information for an option.
  23  *   compare_ipp_options() - Compare two IPP options.
  24  */
  25
  26 /*
  27  * Include necessary headers...
  28  */
  29
  30 #include "cups.h"
  31 #include "ipp-private.h"
  32 #include <stdlib.h>
  33 #include <ctype.h>
  34 #include "string.h"
  35 #include "debug.h"
  36
  37
  38 /*
  39  * Local list of option names and the value tags they should use...
  40  *
  41  * **** THIS LIST MUST BE SORTED ****
  42  */
  43
  44 static const _ipp_option_t ipp_options[] =
  45 {
  46   { 1, "auth-info",             IPP_TAG_TEXT,           IPP_TAG_JOB },
  47   { 1, "auth-info-required",    IPP_TAG_KEYWORD,        IPP_TAG_PRINTER },
  48   { 0, "blackplot",             IPP_TAG_BOOLEAN,        IPP_TAG_JOB },
  49   { 0, "blackplot-default",     IPP_TAG_BOOLEAN,        IPP_TAG_PRINTER },
  50   { 0, "brightness",            IPP_TAG_INTEGER,        IPP_TAG_JOB },
  51   { 0, "brightness-default",    IPP_TAG_INTEGER,        IPP_TAG_PRINTER },
  52   { 0, "columns",               IPP_TAG_INTEGER,        IPP_TAG_JOB },
  53   { 0, "columns-default",       IPP_TAG_INTEGER,        IPP_TAG_PRINTER },
  54   { 0, "copies",                IPP_TAG_INTEGER,        IPP_TAG_JOB },
  55   { 0, "copies-default",        IPP_TAG_INTEGER,        IPP_TAG_PRINTER },
  56   { 0, "document-format",       IPP_TAG_MIMETYPE,       IPP_TAG_OPERATION },
  57   { 0, "document-format-default", IPP_TAG_MIMETYPE,     IPP_TAG_PRINTER },
  58   { 1, "finishings",            IPP_TAG_ENUM,           IPP_TAG_JOB },
  59   { 1, "finishings-default",    IPP_TAG_ENUM,           IPP_TAG_PRINTER },
  60   { 0, "fitplot",               IPP_TAG_BOOLEAN,        IPP_TAG_JOB },
  61   { 0, "fitplot-default",       IPP_TAG_BOOLEAN,        IPP_TAG_PRINTER },
  62   { 0, "gamma",                 IPP_TAG_INTEGER,        IPP_TAG_JOB },
  63   { 0, "gamma-default",         IPP_TAG_INTEGER,        IPP_TAG_PRINTER },
  64   { 0, "hue",                   IPP_TAG_INTEGER,        IPP_TAG_JOB },
  65   { 0, "hue-default",           IPP_TAG_INTEGER,        IPP_TAG_PRINTER },
  66   { 0, "job-k-limit",           IPP_TAG_INTEGER,        IPP_TAG_JOB },
  67   { 0, "job-page-limit",        IPP_TAG_INTEGER,        IPP_TAG_JOB },
  68   { 0, "job-priority",          IPP_TAG_INTEGER,        IPP_TAG_JOB },
  69   { 0, "job-quota-period",      IPP_TAG_INTEGER,        IPP_TAG_JOB },
  70   { 1, "job-sheets",            IPP_TAG_NAME,           IPP_TAG_JOB },
  71   { 1, "job-sheets-default",    IPP_TAG_NAME,           IPP_TAG_PRINTER },
  72   { 0, "job-uuid",              IPP_TAG_URI,            IPP_TAG_JOB },
  73   { 0, "landscape",             IPP_TAG_BOOLEAN,        IPP_TAG_JOB },
  74   { 1, "media",                 IPP_TAG_KEYWORD,        IPP_TAG_JOB },
  75   { 0, "mirror",                IPP_TAG_BOOLEAN,        IPP_TAG_JOB },
  76   { 0, "mirror-default",        IPP_TAG_BOOLEAN,        IPP_TAG_PRINTER },
  77   { 0, "natural-scaling",       IPP_TAG_INTEGER,        IPP_TAG_JOB },
  78   { 0, "natural-scaling-default", IPP_TAG_INTEGER,      IPP_TAG_PRINTER },
  79   { 0, "notify-charset",        IPP_TAG_CHARSET,        IPP_TAG_SUBSCRIPTION },
  80   { 1, "notify-events",         IPP_TAG_KEYWORD,        IPP_TAG_SUBSCRIPTION },
  81   { 1, "notify-events-default", IPP_TAG_KEYWORD,        IPP_TAG_PRINTER },
  82   { 0, "notify-lease-duration", IPP_TAG_INTEGER,        IPP_TAG_SUBSCRIPTION },
  83   { 0, "notify-lease-duration-default", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
  84   { 0, "notify-natural-language", IPP_TAG_LANGUAGE,     IPP_TAG_SUBSCRIPTION },
  85   { 0, "notify-pull-method",    IPP_TAG_KEYWORD,        IPP_TAG_SUBSCRIPTION },
  86   { 0, "notify-recipient-uri",  IPP_TAG_URI,            IPP_TAG_SUBSCRIPTION },
  87   { 0, "notify-time-interval",  IPP_TAG_INTEGER,        IPP_TAG_SUBSCRIPTION },
  88   { 0, "notify-user-data",      IPP_TAG_STRING,         IPP_TAG_SUBSCRIPTION },
  89   { 0, "number-up",             IPP_TAG_INTEGER,        IPP_TAG_JOB },
  90   { 0, "number-up-default",     IPP_TAG_INTEGER,        IPP_TAG_PRINTER },
  91   { 0, "orientation-requested", IPP_TAG_ENUM,           IPP_TAG_JOB },
  92   { 0, "orientation-requested-default", IPP_TAG_ENUM,   IPP_TAG_PRINTER },
  93   { 0, "page-bottom",           IPP_TAG_INTEGER,        IPP_TAG_JOB },
  94   { 0, "page-bottom-default",   IPP_TAG_INTEGER,        IPP_TAG_PRINTER },
  95   { 0, "page-left",             IPP_TAG_INTEGER,        IPP_TAG_JOB },
  96   { 0, "page-left-default",     IPP_TAG_INTEGER,        IPP_TAG_PRINTER },
  97   { 1, "page-ranges",           IPP_TAG_RANGE,          IPP_TAG_JOB },
  98   { 1, "page-ranges-default",   IPP_TAG_RANGE,          IPP_TAG_PRINTER },
  99   { 0, "page-right",            IPP_TAG_INTEGER,        IPP_TAG_JOB },
 100   { 0, "page-right-default",    IPP_TAG_INTEGER,        IPP_TAG_PRINTER },
 101   { 0, "page-top",              IPP_TAG_INTEGER,        IPP_TAG_JOB },
 102   { 0, "page-top-default",      IPP_TAG_INTEGER,        IPP_TAG_PRINTER },
 103   { 0, "penwidth",              IPP_TAG_INTEGER,        IPP_TAG_JOB },
 104   { 0, "penwidth-default",      IPP_TAG_INTEGER,        IPP_TAG_PRINTER },
 105   { 0, "port-monitor",          IPP_TAG_NAME,           IPP_TAG_PRINTER },
 106   { 0, "ppi",                   IPP_TAG_INTEGER,        IPP_TAG_JOB },
 107   { 0, "ppi-default",           IPP_TAG_INTEGER,        IPP_TAG_PRINTER },
 108   { 0, "prettyprint",           IPP_TAG_BOOLEAN,        IPP_TAG_JOB },
 109   { 0, "prettyprint-default",   IPP_TAG_BOOLEAN,        IPP_TAG_PRINTER },
 110   { 0, "print-quality",         IPP_TAG_ENUM,           IPP_TAG_JOB },
 111   { 0, "print-quality-default", IPP_TAG_ENUM,           IPP_TAG_PRINTER },
 112   { 0, "printer-error-policy",  IPP_TAG_NAME,           IPP_TAG_PRINTER },
 113   { 0, "printer-info",          IPP_TAG_TEXT,           IPP_TAG_PRINTER },
 114   { 0, "printer-is-accepting-jobs", IPP_TAG_BOOLEAN,    IPP_TAG_PRINTER },
 115   { 0, "printer-is-shared",     IPP_TAG_BOOLEAN,        IPP_TAG_PRINTER },
 116   { 0, "printer-location",      IPP_TAG_TEXT,           IPP_TAG_PRINTER },
 117   { 0, "printer-make-and-model", IPP_TAG_TEXT,          IPP_TAG_PRINTER },
 118   { 0, "printer-more-info",     IPP_TAG_URI,            IPP_TAG_PRINTER },
 119   { 0, "printer-op-policy",     IPP_TAG_NAME,           IPP_TAG_PRINTER },
 120   { 0, "printer-resolution",    IPP_TAG_RESOLUTION,     IPP_TAG_JOB },
 121   { 0, "printer-state",         IPP_TAG_ENUM,           IPP_TAG_PRINTER },
 122   { 0, "printer-state-change-time", IPP_TAG_INTEGER,    IPP_TAG_PRINTER },
 123   { 1, "printer-state-reasons", IPP_TAG_KEYWORD,        IPP_TAG_PRINTER },
 124   { 0, "printer-type",          IPP_TAG_ENUM,           IPP_TAG_PRINTER },
 125   { 0, "printer-uri",           IPP_TAG_URI,            IPP_TAG_OPERATION },
 126   { 0, "queued-job-count",      IPP_TAG_INTEGER,        IPP_TAG_PRINTER },
 127   { 0, "raw",                   IPP_TAG_MIMETYPE,       IPP_TAG_OPERATION },
 128   { 1, "requesting-user-name-allowed", IPP_TAG_NAME,    IPP_TAG_PRINTER },
 129   { 1, "requesting-user-name-denied", IPP_TAG_NAME,     IPP_TAG_PRINTER },
 130   { 0, "resolution",            IPP_TAG_RESOLUTION,     IPP_TAG_JOB },
 131   { 0, "resolution-default",    IPP_TAG_RESOLUTION,     IPP_TAG_PRINTER },
 132   { 0, "saturation",            IPP_TAG_INTEGER,        IPP_TAG_JOB },
 133   { 0, "saturation-default",    IPP_TAG_INTEGER,        IPP_TAG_PRINTER },
 134   { 0, "scaling",               IPP_TAG_INTEGER,        IPP_TAG_JOB },
 135   { 0, "scaling-default",       IPP_TAG_INTEGER,        IPP_TAG_PRINTER },
 136   { 0, "sides",                 IPP_TAG_KEYWORD,        IPP_TAG_JOB },
 137   { 0, "sides-default",         IPP_TAG_KEYWORD,        IPP_TAG_PRINTER },
 138   { 0, "wrap",                  IPP_TAG_BOOLEAN,        IPP_TAG_JOB },
 139   { 0, "wrap-default",          IPP_TAG_BOOLEAN,        IPP_TAG_PRINTER }
 140 };
 141
 142
 143 /*
 144  * Local functions...
 145  */
 146
 147 static int      compare_ipp_options(_ipp_option_t *a, _ipp_option_t *b);
 148
 149
 150 /*
 151  * 'cupsEncodeOptions()' - Encode printer options into IPP attributes.
 152  *
 153  * This function adds operation, job, and then subscription attributes,
 154  * in that order. Use the cupsEncodeOptions2() function to add attributes
 155  * for a single group.
 156  */
 157
 158 void
 159 cupsEncodeOptions(ipp_t         *ipp,           /* I - Request to add to */
 160                   int           num_options,    /* I - Number of options */
 161                   cups_option_t *options)       /* I - Options */
 162 {
 163   DEBUG_printf(("cupsEncodeOptions(%p, %d, %p)\n", ipp, num_options, options));
 164
 165  /*
 166   * Add the options in the proper groups & order...
 167   */
 168
 169   cupsEncodeOptions2(ipp, num_options, options, IPP_TAG_OPERATION);
 170   cupsEncodeOptions2(ipp, num_options, options, IPP_TAG_JOB);
 171   cupsEncodeOptions2(ipp, num_options, options, IPP_TAG_SUBSCRIPTION);
 172 }
 173
 174
 175 /*
 176  * 'cupsEncodeOptions2()' - Encode printer options into IPP attributes for a group.
 177  *
 178  * This function only adds attributes for a single group. Call this
 179  * function multiple times for each group, or use cupsEncodeOptions()
 180  * to add the standard groups.
 181  *
 182  * @since CUPS 1.2@
 183  */
 184
 185 void
 186 cupsEncodeOptions2(
 187     ipp_t         *ipp,                 /* I - Request to add to */
 188     int           num_options,          /* I - Number of options */
 189     cups_option_t *options,             /* I - Options */
 190     ipp_tag_t     group_tag)            /* I - Group to encode */
 191 {
 192   int           i, j;                   /* Looping vars */
 193   int           count;                  /* Number of values */
 194   char          *s,                     /* Pointer into option value */
 195                 *val,                   /* Pointer to option value */
 196                 *copy,                  /* Copy of option value */
 197                 *sep,                   /* Option separator */
 198                 quote;                  /* Quote character */
 199   ipp_attribute_t *attr;                /* IPP attribute */
 200   ipp_tag_t     value_tag;              /* IPP value tag */
 201   cups_option_t *option;                /* Current option */
 202
 203
 204   DEBUG_printf(("cupsEncodeOptions2(ipp=%p, num_options=%d, options=%p, "
 205                 "group_tag=%x)\n", ipp, num_options, options, group_tag));
 206
 207  /*
 208   * Range check input...
 209   */
 210
 211   if (!ipp || num_options < 1 || !options)
 212     return;
 213
 214  /*
 215   * Do special handling for the document-format/raw options...
 216   */
 217
 218   if (group_tag == IPP_TAG_OPERATION)
 219   {
 220    /*
 221     * Handle the document format stuff first...
 222     */
 223
 224     if ((val = (char *)cupsGetOption("document-format", num_options, options)) != NULL)
 225       ippAddString(ipp, IPP_TAG_OPERATION, IPP_TAG_MIMETYPE, "document-format",
 226                    NULL, val);
 227     else if (cupsGetOption("raw", num_options, options))
 228       ippAddString(ipp, IPP_TAG_OPERATION, IPP_TAG_MIMETYPE, "document-format",
 229                    NULL, "application/vnd.cups-raw");
 230     else
 231       ippAddString(ipp, IPP_TAG_OPERATION, IPP_TAG_MIMETYPE, "document-format",
 232                    NULL, "application/octet-stream");
 233   }
 234
 235  /*
 236   * Then loop through the options...
 237   */
 238
 239   for (i = num_options, option = options; i > 0; i --, option ++)
 240   {
 241     _ipp_option_t       *match;         /* Matching attribute */
 242
 243
 244    /*
 245     * Skip document format options that are handled above...
 246     */
 247
 248     if (!strcasecmp(option->name, "raw") ||
 249         !strcasecmp(option->name, "document-format") ||
 250         !option->name[0])
 251       continue;
 252
 253    /*
 254     * Figure out the proper value and group tags for this option...
 255     */
 256
 257     if ((match = _ippFindOption(option->name)) != NULL)
 258     {
 259       if (match->group_tag != group_tag)
 260         continue;
 261
 262       value_tag = match->value_tag;
 263     }
 264     else
 265     {
 266       int       namelen;                /* Length of name */
 267
 268
 269       namelen = (int)strlen(option->name);
 270
 271       if (namelen < 9 || strcmp(option->name + namelen - 8, "-default"))
 272       {
 273         if (group_tag != IPP_TAG_JOB)
 274           continue;
 275       }
 276       else if (group_tag != IPP_TAG_PRINTER)
 277         continue;
 278
 279       if (!strcasecmp(option->value, "true") ||
 280           !strcasecmp(option->value, "false"))
 281         value_tag = IPP_TAG_BOOLEAN;
 282       else
 283         value_tag = IPP_TAG_NAME;
 284     }
 285
 286    /*
 287     * Count the number of values...
 288     */
 289
 290     if (match && match->multivalue)
 291     {
 292       for (count = 1, sep = option->value, quote = 0; *sep; sep ++)
 293       {
 294         if (*sep == quote)
 295           quote = 0;
 296         else if (!quote && (*sep == '\'' || *sep == '\"'))
 297         {
 298          /*
 299           * Skip quoted option value...
 300           */
 301
 302           quote = *sep++;
 303         }
 304         else if (*sep == ',' && !quote)
 305           count ++;
 306         else if (*sep == '\\' && sep[1])
 307           sep ++;
 308       }
 309     }
 310     else
 311       count = 1;
 312
 313     DEBUG_printf(("cupsEncodeOptions2: option = \'%s\', count = %d\n",
 314                   option->name, count));
 315
 316    /*
 317     * Allocate memory for the attribute values...
 318     */
 319
 320     if ((attr = _ippAddAttr(ipp, count)) == NULL)
 321     {
 322      /*
 323       * Ran out of memory!
 324       */
 325
 326       DEBUG_puts("cupsEncodeOptions2: Ran out of memory for attributes!");
 327       return;
 328     }
 329
 330    /*
 331     * Now figure out what type of value we have...
 332     */
 333
 334     attr->group_tag = group_tag;
 335     attr->value_tag = value_tag;
 336
 337    /*
 338     * Copy the name over...
 339     */
 340
 341     if ((attr->name = _cupsStrAlloc(option->name)) == NULL)
 342     {
 343      /*
 344       * Ran out of memory!
 345       */
 346
 347       DEBUG_puts("cupsEncodeOptions2: Ran out of memory for name!");
 348       return;
 349     }
 350
 351     if (count > 1)
 352     {
 353      /*
 354       * Make a copy of the value we can fiddle with...
 355       */
 356
 357       if ((copy = strdup(option->value)) == NULL)
 358       {
 359        /*
 360         * Ran out of memory!
 361         */
 362
 363         DEBUG_puts("cupsEncodeOptions2: Ran out of memory for value copy!");
 364         return;
 365       }
 366
 367       val = copy;
 368     }
 369     else
 370     {
 371      /*
 372       * Since we have a single value, use the value directly...
 373       */
 374
 375       val  = option->value;
 376       copy = NULL;
 377     }
 378
 379    /*
 380     * Scan the value string for values...
 381     */
 382
 383     for (j = 0, sep = val; j < count; val = sep, j ++)
 384     {
 385      /*
 386       * Find the end of this value and mark it if needed...
 387       */
 388
 389       if (count > 1)
 390       {
 391         for (quote = 0; *sep; sep ++)
 392         {
 393           if (*sep == quote)
 394           {
 395            /*
 396             * Finish quoted value...
 397             */
 398
 399             quote = 0;
 400           }
 401           else if (!quote && (*sep == '\'' || *sep == '\"'))
 402           {
 403            /*
 404             * Handle quoted option value...
 405             */
 406
 407             quote = *sep;
 408           }
 409           else if (*sep == ',' && count > 1)
 410             break;
 411           else if (*sep == '\\' && sep[1])
 412           {
 413            /*
 414             * Skip quoted character...
 415             */
 416
 417             sep ++;
 418           }
 419         }
 420
 421         if (*sep == ',')
 422           *sep++ = '\0';
 423       }
 424
 425      /*
 426       * Copy the option value(s) over as needed by the type...
 427       */
 428
 429       switch (attr->value_tag)
 430       {
 431         case IPP_TAG_INTEGER :
 432         case IPP_TAG_ENUM :
 433            /*
 434             * Integer/enumeration value...
 435             */
 436
 437             attr->values[j].integer = strtol(val, &s, 10);
 438
 439             DEBUG_printf(("cupsEncodeOptions2: Added integer option value %d...\n",
 440                           attr->values[j].integer));
 441             break;
 442
 443         case IPP_TAG_BOOLEAN :
 444             if (!strcasecmp(val, "true") ||
 445                 !strcasecmp(val, "on") ||
 446                 !strcasecmp(val, "yes"))
 447             {
 448              /*
 449               * Boolean value - true...
 450               */
 451
 452               attr->values[j].boolean = 1;
 453
 454               DEBUG_puts("cupsEncodeOptions2: Added boolean true value...");
 455             }
 456             else
 457             {
 458              /*
 459               * Boolean value - false...
 460               */
 461
 462               attr->values[j].boolean = 0;
 463
 464               DEBUG_puts("cupsEncodeOptions2: Added boolean false value...");
 465             }
 466             break;
 467
 468         case IPP_TAG_RANGE :
 469            /*
 470             * Range...
 471             */
 472
 473             if (*val == '-')
 474             {
 475               attr->values[j].range.lower = 1;
 476               s = val;
 477             }
 478             else
 479               attr->values[j].range.lower = strtol(val, &s, 10);
 480
 481             if (*s == '-')
 482             {
 483               if (s[1])
 484                 attr->values[j].range.upper = strtol(s + 1, NULL, 10);
 485               else
 486                 attr->values[j].range.upper = 2147483647;
 487             }
 488             else
 489               attr->values[j].range.upper = attr->values[j].range.lower;
 490
 491             DEBUG_printf(("cupsEncodeOptions2: Added range option value %d-%d...\n",
 492                           attr->values[j].range.lower,
 493                           attr->values[j].range.upper));
 494             break;
 495
 496         case IPP_TAG_RESOLUTION :
 497            /*
 498             * Resolution...
 499             */
 500
 501             attr->values[j].resolution.xres = strtol(val, &s, 10);
 502
 503             if (*s == 'x')
 504               attr->values[j].resolution.yres = strtol(s + 1, &s, 10);
 505             else
 506               attr->values[j].resolution.yres = attr->values[j].resolution.xres;
 507
 508             if (!strcasecmp(s, "dpc"))
 509               attr->values[j].resolution.units = IPP_RES_PER_CM;
 510             else
 511               attr->values[j].resolution.units = IPP_RES_PER_INCH;
 512
 513             DEBUG_printf(("cupsEncodeOptions2: Added resolution option value %s...\n",
 514                           val));
 515             break;
 516
 517         case IPP_TAG_STRING :
 518            /*
 519             * octet-string
 520             */
 521
 522             attr->values[j].unknown.length = (int)strlen(val);
 523             attr->values[j].unknown.data   = strdup(val);
 524
 525             DEBUG_printf(("cupsEncodeOptions2: Added octet-string value \"%s\"...\n",
 526                           attr->values[j].unknown.data));
 527             break;
 528
 529         default :
 530             if ((attr->values[j].string.text = _cupsStrAlloc(val)) == NULL)
 531             {
 532              /*
 533               * Ran out of memory!
 534               */
 535
 536               DEBUG_puts("cupsEncodeOptions2: Ran out of memory for string!");
 537               return;
 538             }
 539
 540             DEBUG_printf(("cupsEncodeOptions2: Added string value \"%s\"...\n",
 541                           val));
 542             break;
 543       }
 544     }
 545
 546     if (copy)
 547       free(copy);
 548   }
 549 }
 550
 551
 552 /*
 553  * '_ippFindOption()' - Find the attribute information for an option.
 554  */
 555
 556 _ipp_option_t *                         /* O - Attribute information */
 557 _ippFindOption(const char *name)        /* I - Option/attribute name */
 558 {
 559   _ipp_option_t key;                    /* Search key */
 560
 561
 562  /*
 563   * Lookup the proper value and group tags for this option...
 564   */
 565
 566   key.name = name;
 567
 568   return ((_ipp_option_t *)bsearch(&key, ipp_options,
 569                                    sizeof(ipp_options) / sizeof(ipp_options[0]),
 570                                    sizeof(ipp_options[0]),
 571                                    (int (*)(const void *, const void *))
 572                                        compare_ipp_options));
 573 }
 574
 575
 576 /*
 577  * 'compare_ipp_options()' - Compare two IPP options.
 578  */
 579
 580 static int                              /* O - Result of comparison */
 581 compare_ipp_options(_ipp_option_t *a,   /* I - First option */
 582                     _ipp_option_t *b)   /* I - Second option */
 583 {
 584   return (strcmp(a->name, b->name));
 585 }
 586
 587
 588 /*
 589  * End of "$Id: encode.c 6649 2007-07-11 21:46:42Z mike $".
 590  */