/*
 * Option encoding routines for CUPS.
 *
 * Copyright 2007-2016 by Apple Inc.
 * Copyright 1997-2007 by Easy Software Products.
 *
 * These coded instructions, statements, and computer programs are the
 * property of Apple Inc. and are protected by Federal copyright
 * law.  Distribution and use rights are outlined in the file "LICENSE.txt"
 * which should have been included with this file.  If this file is
 * missing or damaged, see the license at "http://www.cups.org/".
 *
 * This file is subject to the Apple OS-Developed Software exception.
 */

/*
 * Include necessary headers...
 */

#include "cups-private.h"


/*
 * Local list of option names, the value tags they should use, and the list of
 * supported operations...
 *
 * **** THIS LIST MUST BE SORTED BY ATTRIBUTE NAME ****
 */

static const ipp_op_t ipp_job_creation[] =
{
  IPP_OP_PRINT_JOB,
  IPP_OP_PRINT_URI,
  IPP_OP_VALIDATE_JOB,
  IPP_OP_CREATE_JOB,
  IPP_OP_HOLD_JOB,
  IPP_OP_SET_JOB_ATTRIBUTES,
  IPP_OP_CUPS_NONE
};

static const ipp_op_t ipp_doc_creation[] =
{
  IPP_OP_PRINT_JOB,
  IPP_OP_PRINT_URI,
  IPP_OP_SEND_DOCUMENT,
  IPP_OP_SEND_URI,
  IPP_OP_SET_JOB_ATTRIBUTES,
  IPP_OP_SET_DOCUMENT_ATTRIBUTES,
  IPP_OP_CUPS_NONE
};

static const ipp_op_t ipp_sub_creation[] =
{
  IPP_OP_PRINT_JOB,
  IPP_OP_PRINT_URI,
  IPP_OP_CREATE_JOB,
  IPP_OP_CREATE_PRINTER_SUBSCRIPTIONS,
  IPP_OP_CREATE_JOB_SUBSCRIPTIONS,
  IPP_OP_CUPS_NONE
};

static const ipp_op_t ipp_all_print[] =
{
  IPP_OP_PRINT_JOB,
  IPP_OP_PRINT_URI,
  IPP_OP_VALIDATE_JOB,
  IPP_OP_CREATE_JOB,
  IPP_OP_SEND_DOCUMENT,
  IPP_OP_SEND_URI,
  IPP_OP_CUPS_NONE
};

static const ipp_op_t ipp_set_printer[] =
{
  IPP_OP_SET_PRINTER_ATTRIBUTES,
  IPP_OP_CUPS_ADD_MODIFY_PRINTER,
  IPP_OP_CUPS_ADD_MODIFY_CLASS,
  IPP_OP_CUPS_NONE
};

static const ipp_op_t cups_schemes[] =
{
  IPP_OP_CUPS_GET_DEVICES,
  IPP_OP_CUPS_GET_PPDS,
  IPP_OP_CUPS_NONE
};

static const ipp_op_t cups_get_ppds[] =
{
  IPP_OP_CUPS_GET_PPDS,
  IPP_OP_CUPS_NONE
};

static const ipp_op_t cups_ppd_name[] =
{
  IPP_OP_CUPS_ADD_MODIFY_PRINTER,
  IPP_OP_CUPS_GET_PPD,
  IPP_OP_CUPS_NONE
};

static const _ipp_option_t ipp_options[] =
{
  { 1, "auth-info",		IPP_TAG_TEXT,		IPP_TAG_JOB },
  { 1, "auth-info-default",	IPP_TAG_TEXT,		IPP_TAG_PRINTER },
  { 1, "auth-info-required",	IPP_TAG_KEYWORD,	IPP_TAG_PRINTER },
  { 0, "blackplot",		IPP_TAG_BOOLEAN,	IPP_TAG_JOB },
  { 0, "blackplot-default",	IPP_TAG_BOOLEAN,	IPP_TAG_PRINTER },
  { 0, "brightness",		IPP_TAG_INTEGER,	IPP_TAG_JOB },
  { 0, "brightness-default",	IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 0, "columns",		IPP_TAG_INTEGER,	IPP_TAG_JOB },
  { 0, "columns-default",	IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 0, "compression",		IPP_TAG_KEYWORD,	IPP_TAG_OPERATION,
							IPP_TAG_ZERO,
							ipp_doc_creation },
  { 0, "copies",		IPP_TAG_INTEGER,	IPP_TAG_JOB,
							IPP_TAG_DOCUMENT },
  { 0, "copies-default",	IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 0, "date-time-at-completed",IPP_TAG_DATE,		IPP_TAG_ZERO }, /* never send as option */
  { 0, "date-time-at-creation",	IPP_TAG_DATE,		IPP_TAG_ZERO }, /* never send as option */
  { 0, "date-time-at-processing",IPP_TAG_DATE,		IPP_TAG_ZERO }, /* never send as option */
  { 0, "device-uri",		IPP_TAG_URI,		IPP_TAG_PRINTER },
  { 1, "document-copies",	IPP_TAG_RANGE,		IPP_TAG_JOB,
							IPP_TAG_DOCUMENT,
							ipp_doc_creation },
  { 0, "document-format",	IPP_TAG_MIMETYPE,	IPP_TAG_OPERATION,
							IPP_TAG_ZERO,
							ipp_doc_creation },
  { 0, "document-format-default", IPP_TAG_MIMETYPE,	IPP_TAG_PRINTER },
  { 1, "document-numbers",	IPP_TAG_RANGE,		IPP_TAG_JOB,
							IPP_TAG_DOCUMENT,
							ipp_all_print },
  { 1, "exclude-schemes",	IPP_TAG_NAME,		IPP_TAG_OPERATION,
							IPP_TAG_ZERO,
							cups_schemes },
  { 1, "finishings",		IPP_TAG_ENUM,		IPP_TAG_JOB,
							IPP_TAG_DOCUMENT },
  { 1, "finishings-default",	IPP_TAG_ENUM,		IPP_TAG_PRINTER },
  { 0, "fit-to-page",		IPP_TAG_BOOLEAN,	IPP_TAG_JOB,
							IPP_TAG_DOCUMENT },
  { 0, "fit-to-page-default",	IPP_TAG_BOOLEAN,	IPP_TAG_PRINTER },
  { 0, "fitplot",		IPP_TAG_BOOLEAN,	IPP_TAG_JOB },
  { 0, "fitplot-default",	IPP_TAG_BOOLEAN,	IPP_TAG_PRINTER },
  { 0, "gamma",			IPP_TAG_INTEGER,	IPP_TAG_JOB },
  { 0, "gamma-default",		IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 0, "hue",			IPP_TAG_INTEGER,	IPP_TAG_JOB },
  { 0, "hue-default",		IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 1, "include-schemes",	IPP_TAG_NAME,		IPP_TAG_OPERATION,
							IPP_TAG_ZERO,
							cups_schemes },
  { 0, "job-account-id",        IPP_TAG_NAME,           IPP_TAG_JOB },
  { 0, "job-account-id-default",IPP_TAG_NAME,           IPP_TAG_PRINTER },
  { 0, "job-accounting-user-id", IPP_TAG_NAME,          IPP_TAG_JOB },
  { 0, "job-accounting-user-id-default", IPP_TAG_NAME,  IPP_TAG_PRINTER },
  { 0, "job-authorization-uri",	IPP_TAG_URI,		IPP_TAG_OPERATION },
  { 0, "job-cancel-after",	IPP_TAG_INTEGER,	IPP_TAG_JOB },
  { 0, "job-cancel-after-default", IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 0, "job-hold-until",	IPP_TAG_KEYWORD,	IPP_TAG_JOB },
  { 0, "job-id",		IPP_TAG_INTEGER,	IPP_TAG_ZERO }, /* never send as option */
  { 0, "job-impressions",	IPP_TAG_INTEGER,	IPP_TAG_ZERO }, /* never send as option */
  { 0, "job-impressions-completed", IPP_TAG_INTEGER,	IPP_TAG_ZERO }, /* never send as option */
  { 0, "job-k-limit",		IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 0, "job-k-octets",		IPP_TAG_INTEGER,	IPP_TAG_ZERO }, /* never send as option */
  { 0, "job-k-octets-completed",IPP_TAG_INTEGER,	IPP_TAG_ZERO }, /* never send as option */
  { 0, "job-media-sheets",	IPP_TAG_INTEGER,	IPP_TAG_ZERO }, /* never send as option */
  { 0, "job-media-sheets-completed", IPP_TAG_INTEGER,	IPP_TAG_ZERO }, /* never send as option */
  { 0, "job-page-limit",	IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 0, "job-password",          IPP_TAG_STRING,         IPP_TAG_OPERATION,
							IPP_TAG_ZERO,
							ipp_job_creation },
  { 0, "job-password-encryption", IPP_TAG_KEYWORD,      IPP_TAG_OPERATION,
							IPP_TAG_ZERO,
							ipp_job_creation },
  { 0, "job-priority",		IPP_TAG_INTEGER,	IPP_TAG_JOB },
  { 0, "job-quota-period",	IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 1, "job-sheets",		IPP_TAG_NAME,		IPP_TAG_JOB },
  { 1, "job-sheets-default",	IPP_TAG_NAME,		IPP_TAG_PRINTER },
  { 0, "job-state",		IPP_TAG_ENUM,		IPP_TAG_ZERO }, /* never send as option */
  { 0, "job-state-message",	IPP_TAG_TEXT,		IPP_TAG_ZERO }, /* never send as option */
  { 0, "job-state-reasons",	IPP_TAG_KEYWORD,	IPP_TAG_ZERO }, /* never send as option */
  { 0, "job-uuid",		IPP_TAG_URI,		IPP_TAG_JOB },
  { 0, "landscape",		IPP_TAG_BOOLEAN,	IPP_TAG_JOB },
  { 1, "marker-change-time",	IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 1, "marker-colors",		IPP_TAG_NAME,		IPP_TAG_PRINTER },
  { 1, "marker-high-levels",	IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 1, "marker-levels",		IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 1, "marker-low-levels",	IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 0, "marker-message",	IPP_TAG_TEXT,		IPP_TAG_PRINTER },
  { 1, "marker-names",		IPP_TAG_NAME,		IPP_TAG_PRINTER },
  { 1, "marker-types",		IPP_TAG_KEYWORD,	IPP_TAG_PRINTER },
  { 1, "media",			IPP_TAG_KEYWORD,	IPP_TAG_JOB,
							IPP_TAG_DOCUMENT },
  { 0, "media-col",		IPP_TAG_BEGIN_COLLECTION, IPP_TAG_JOB,
							IPP_TAG_DOCUMENT },
  { 0, "media-col-default",	IPP_TAG_BEGIN_COLLECTION, IPP_TAG_PRINTER },
  { 0, "media-color",		IPP_TAG_KEYWORD,	IPP_TAG_JOB,
							IPP_TAG_DOCUMENT },
  { 1, "media-default",		IPP_TAG_KEYWORD,	IPP_TAG_PRINTER },
  { 0, "media-key",		IPP_TAG_KEYWORD,	IPP_TAG_JOB,
							IPP_TAG_DOCUMENT },
  { 0, "media-size",		IPP_TAG_BEGIN_COLLECTION, IPP_TAG_JOB,
							IPP_TAG_DOCUMENT },
  { 0, "media-type",		IPP_TAG_KEYWORD,	IPP_TAG_JOB,
							IPP_TAG_DOCUMENT },
  { 0, "mirror",		IPP_TAG_BOOLEAN,	IPP_TAG_JOB },
  { 0, "mirror-default",	IPP_TAG_BOOLEAN,	IPP_TAG_PRINTER },
  { 0, "natural-scaling",	IPP_TAG_INTEGER,	IPP_TAG_JOB },
  { 0, "natural-scaling-default", IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 0, "notify-charset",	IPP_TAG_CHARSET,	IPP_TAG_SUBSCRIPTION },
  { 1, "notify-events",		IPP_TAG_KEYWORD,	IPP_TAG_SUBSCRIPTION },
  { 1, "notify-events-default",	IPP_TAG_KEYWORD,	IPP_TAG_PRINTER },
  { 0, "notify-lease-duration",	IPP_TAG_INTEGER,	IPP_TAG_SUBSCRIPTION },
  { 0, "notify-lease-duration-default", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
  { 0, "notify-natural-language", IPP_TAG_LANGUAGE,	IPP_TAG_SUBSCRIPTION },
  { 0, "notify-pull-method",	IPP_TAG_KEYWORD,	IPP_TAG_SUBSCRIPTION },
  { 0, "notify-recipient-uri",	IPP_TAG_URI,		IPP_TAG_SUBSCRIPTION },
  { 0, "notify-time-interval",	IPP_TAG_INTEGER,	IPP_TAG_SUBSCRIPTION },
  { 0, "notify-user-data",	IPP_TAG_STRING,		IPP_TAG_SUBSCRIPTION },
  { 0, "number-up",		IPP_TAG_INTEGER,	IPP_TAG_JOB,
							IPP_TAG_DOCUMENT },
  { 0, "number-up-default",	IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 0, "orientation-requested",	IPP_TAG_ENUM,		IPP_TAG_JOB,
							IPP_TAG_DOCUMENT },
  { 0, "orientation-requested-default", IPP_TAG_ENUM,	IPP_TAG_PRINTER },
  { 1, "overrides",		IPP_TAG_BEGIN_COLLECTION, IPP_TAG_JOB,
							IPP_TAG_DOCUMENT },
  { 0, "page-bottom",		IPP_TAG_INTEGER,	IPP_TAG_JOB },
  { 0, "page-bottom-default",	IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 0, "page-left",		IPP_TAG_INTEGER,	IPP_TAG_JOB },
  { 0, "page-left-default",	IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 1, "page-ranges",		IPP_TAG_RANGE,		IPP_TAG_JOB,
							IPP_TAG_DOCUMENT },
  { 1, "page-ranges-default",	IPP_TAG_RANGE,		IPP_TAG_PRINTER },
  { 0, "page-right",		IPP_TAG_INTEGER,	IPP_TAG_JOB },
  { 0, "page-right-default",	IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 0, "page-top",		IPP_TAG_INTEGER,	IPP_TAG_JOB },
  { 0, "page-top-default",	IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 1, "pages",			IPP_TAG_RANGE,		IPP_TAG_JOB,
							IPP_TAG_DOCUMENT },
  { 0, "penwidth",		IPP_TAG_INTEGER,	IPP_TAG_JOB },
  { 0, "penwidth-default",	IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 0, "port-monitor",		IPP_TAG_NAME,		IPP_TAG_PRINTER },
  { 0, "ppd-device-id",		IPP_TAG_TEXT,		IPP_TAG_OPERATION,
							IPP_TAG_ZERO,
							cups_get_ppds },
  { 0, "ppd-make",		IPP_TAG_TEXT,		IPP_TAG_OPERATION,
							IPP_TAG_ZERO,
							cups_get_ppds },
  { 0, "ppd-make-and-model",	IPP_TAG_TEXT,		IPP_TAG_OPERATION,
							IPP_TAG_ZERO,
							cups_get_ppds },
  { 0, "ppd-model-number",	IPP_TAG_INTEGER,	IPP_TAG_OPERATION,
							IPP_TAG_ZERO,
							cups_get_ppds },
  { 0, "ppd-name",		IPP_TAG_NAME,		IPP_TAG_OPERATION,
							IPP_TAG_ZERO,
							cups_ppd_name },
  { 0, "ppd-natural-language",	IPP_TAG_LANGUAGE,	IPP_TAG_OPERATION,
							IPP_TAG_ZERO,
							cups_get_ppds },
  { 0, "ppd-product",		IPP_TAG_TEXT,		IPP_TAG_OPERATION,
							IPP_TAG_ZERO,
							cups_get_ppds },
  { 0, "ppd-psversion",		IPP_TAG_TEXT,		IPP_TAG_OPERATION,
							IPP_TAG_ZERO,
							cups_get_ppds },
  { 0, "ppd-type",		IPP_TAG_KEYWORD,	IPP_TAG_OPERATION,
							IPP_TAG_ZERO,
							cups_get_ppds },
  { 0, "ppi",			IPP_TAG_INTEGER,	IPP_TAG_JOB },
  { 0, "ppi-default",		IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 0, "prettyprint",		IPP_TAG_BOOLEAN,	IPP_TAG_JOB },
  { 0, "prettyprint-default",	IPP_TAG_BOOLEAN,	IPP_TAG_PRINTER },
  { 0, "print-quality",		IPP_TAG_ENUM,		IPP_TAG_JOB,
							IPP_TAG_DOCUMENT },
  { 0, "print-quality-default",	IPP_TAG_ENUM,		IPP_TAG_PRINTER },
  { 1, "printer-commands",	IPP_TAG_KEYWORD,	IPP_TAG_PRINTER },
  { 0, "printer-error-policy",	IPP_TAG_NAME,		IPP_TAG_PRINTER },
  { 0, "printer-geo-location",	IPP_TAG_URI,		IPP_TAG_PRINTER },
  { 0, "printer-info",		IPP_TAG_TEXT,		IPP_TAG_PRINTER },
  { 0, "printer-is-accepting-jobs", IPP_TAG_BOOLEAN,	IPP_TAG_PRINTER },
  { 0, "printer-is-shared",	IPP_TAG_BOOLEAN,	IPP_TAG_PRINTER },
  { 0, "printer-is-temporary",	IPP_TAG_BOOLEAN,	IPP_TAG_PRINTER },
  { 0, "printer-location",	IPP_TAG_TEXT,		IPP_TAG_PRINTER },
  { 0, "printer-make-and-model", IPP_TAG_TEXT,		IPP_TAG_PRINTER },
  { 0, "printer-more-info",	IPP_TAG_URI,		IPP_TAG_PRINTER },
  { 0, "printer-op-policy",	IPP_TAG_NAME,		IPP_TAG_PRINTER },
  { 0, "printer-resolution",	IPP_TAG_RESOLUTION,	IPP_TAG_JOB,
							IPP_TAG_DOCUMENT },
  { 0, "printer-state",		IPP_TAG_ENUM,		IPP_TAG_PRINTER },
  { 0, "printer-state-change-time", IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 1, "printer-state-reasons",	IPP_TAG_KEYWORD,	IPP_TAG_PRINTER },
  { 0, "printer-type",		IPP_TAG_ENUM,		IPP_TAG_PRINTER },
  { 0, "printer-uri",		IPP_TAG_URI,		IPP_TAG_OPERATION },
  { 1, "printer-uri-supported",	IPP_TAG_URI,		IPP_TAG_PRINTER },
  { 0, "queued-job-count",	IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 0, "raw",			IPP_TAG_MIMETYPE,	IPP_TAG_OPERATION },
  { 1, "requested-attributes",	IPP_TAG_NAME,		IPP_TAG_OPERATION },
  { 1, "requesting-user-name-allowed", IPP_TAG_NAME,	IPP_TAG_PRINTER },
  { 1, "requesting-user-name-denied", IPP_TAG_NAME,	IPP_TAG_PRINTER },
  { 0, "resolution",		IPP_TAG_RESOLUTION,	IPP_TAG_JOB },
  { 0, "resolution-default",	IPP_TAG_RESOLUTION,	IPP_TAG_PRINTER },
  { 0, "saturation",		IPP_TAG_INTEGER,	IPP_TAG_JOB },
  { 0, "saturation-default",	IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 0, "scaling",		IPP_TAG_INTEGER,	IPP_TAG_JOB },
  { 0, "scaling-default",	IPP_TAG_INTEGER,	IPP_TAG_PRINTER },
  { 0, "sides",			IPP_TAG_KEYWORD,	IPP_TAG_JOB,
							IPP_TAG_DOCUMENT },
  { 0, "sides-default",		IPP_TAG_KEYWORD,	IPP_TAG_PRINTER },
  { 0, "time-at-completed",	IPP_TAG_INTEGER,	IPP_TAG_ZERO }, /* never send as option */
  { 0, "time-at-creation",	IPP_TAG_INTEGER,	IPP_TAG_ZERO }, /* never send as option */
  { 0, "time-at-processing",	IPP_TAG_INTEGER,	IPP_TAG_ZERO }, /* never send as option */
  { 0, "wrap",			IPP_TAG_BOOLEAN,	IPP_TAG_JOB },
  { 0, "wrap-default",		IPP_TAG_BOOLEAN,	IPP_TAG_PRINTER },
  { 0, "x-dimension",		IPP_TAG_INTEGER,	IPP_TAG_JOB,
							IPP_TAG_DOCUMENT },
  { 0, "y-dimension",		IPP_TAG_INTEGER,	IPP_TAG_JOB,
							IPP_TAG_DOCUMENT }
};


/*
 * Local functions...
 */

static int	compare_ipp_options(_ipp_option_t *a, _ipp_option_t *b);


/*
 * 'cupsEncodeOptions()' - Encode printer options into IPP attributes.
 *
 * This function adds operation, job, and then subscription attributes,
 * in that order. Use the cupsEncodeOptions2() function to add attributes
 * for a single group.
 */

void
cupsEncodeOptions(ipp_t         *ipp,		/* I - Request to add to */
        	  int           num_options,	/* I - Number of options */
		  cups_option_t *options)	/* I - Options */
{
  DEBUG_printf(("cupsEncodeOptions(%p, %d, %p)", (void *)ipp, num_options, (void *)options));

 /*
  * Add the options in the proper groups & order...
  */

  cupsEncodeOptions2(ipp, num_options, options, IPP_TAG_OPERATION);
  cupsEncodeOptions2(ipp, num_options, options, IPP_TAG_JOB);
  cupsEncodeOptions2(ipp, num_options, options, IPP_TAG_SUBSCRIPTION);
}


/*
 * 'cupsEncodeOptions2()' - Encode printer options into IPP attributes for a group.
 *
 * This function only adds attributes for a single group. Call this
 * function multiple times for each group, or use cupsEncodeOptions()
 * to add the standard groups.
 *
 * @since CUPS 1.2/macOS 10.5@
 */

void
cupsEncodeOptions2(
    ipp_t         *ipp,			/* I - Request to add to */
    int           num_options,		/* I - Number of options */
    cups_option_t *options,		/* I - Options */
    ipp_tag_t     group_tag)		/* I - Group to encode */
{
  int			i, j;		/* Looping vars */
  int			count;		/* Number of values */
  char			*s,		/* Pointer into option value */
			*val,		/* Pointer to option value */
			*copy,		/* Copy of option value */
			*sep,		/* Option separator */
			quote;		/* Quote character */
  ipp_attribute_t	*attr;		/* IPP attribute */
  ipp_tag_t		value_tag;	/* IPP value tag */
  cups_option_t		*option;	/* Current option */
  ipp_t			*collection;	/* Collection value */
  int			num_cols;	/* Number of collection values */
  cups_option_t		*cols;		/* Collection values */
  ipp_op_t		op;		/* Operation for this request */
  const ipp_op_t	*ops;		/* List of allowed operations */


  DEBUG_printf(("cupsEncodeOptions2(ipp=%p(%s), num_options=%d, options=%p, group_tag=%x)", (void *)ipp, ipp ? ippOpString(ippGetOperation(ipp)) : "", num_options, (void *)options, group_tag));

 /*
  * Range check input...
  */

  if (!ipp || num_options < 1 || !options)
    return;

 /*
  * Do special handling for the document-format/raw options...
  */

  op = ippGetOperation(ipp);

  if (group_tag == IPP_TAG_OPERATION &&
      (op == IPP_OP_PRINT_JOB || op == IPP_OP_PRINT_URI ||
       op == IPP_OP_SEND_DOCUMENT || op == IPP_OP_SEND_URI))
  {
   /*
    * Handle the document format stuff first...
    */

    if ((val = (char *)cupsGetOption("document-format", num_options,
                                     options)) != NULL)
      ippAddString(ipp, IPP_TAG_OPERATION, IPP_TAG_MIMETYPE, "document-format",
        	   NULL, val);
    else if (cupsGetOption("raw", num_options, options))
      ippAddString(ipp, IPP_TAG_OPERATION, IPP_TAG_MIMETYPE, "document-format",
        	   NULL, "application/vnd.cups-raw");
    else
      ippAddString(ipp, IPP_TAG_OPERATION, IPP_TAG_MIMETYPE, "document-format",
        	   NULL, "application/octet-stream");
  }

 /*
  * Then loop through the options...
  */

  for (i = num_options, option = options; i > 0; i --, option ++)
  {
    _ipp_option_t	*match;		/* Matching attribute */


   /*
    * Skip document format options that are handled above...
    */

    if (!_cups_strcasecmp(option->name, "raw") ||
        !_cups_strcasecmp(option->name, "document-format") ||
	!option->name[0])
      continue;

   /*
    * Figure out the proper value and group tags for this option...
    */

    if ((match = _ippFindOption(option->name)) != NULL)
    {
      if (match->group_tag != group_tag && match->alt_group_tag != group_tag)
        continue;

      value_tag = match->value_tag;

      if (match->operations)
        ops = match->operations;
      else if (group_tag == IPP_TAG_JOB)
        ops = ipp_job_creation;
      else if (group_tag == IPP_TAG_DOCUMENT)
        ops = ipp_doc_creation;
      else if (group_tag == IPP_TAG_SUBSCRIPTION)
        ops = ipp_sub_creation;
      else if (group_tag == IPP_TAG_PRINTER)
        ops = ipp_set_printer;
      else
      {
	DEBUG_printf(("2cupsEncodeOptions2: Skipping \"%s\".", option->name));
        continue;
      }
    }
    else
    {
      int	namelen;		/* Length of name */


      namelen = (int)strlen(option->name);

      if (namelen < 10 ||
          (strcmp(option->name + namelen - 8, "-default") &&
           strcmp(option->name + namelen - 10, "-supported")))
      {
	if (group_tag != IPP_TAG_JOB && group_tag != IPP_TAG_DOCUMENT)
	{
	  DEBUG_printf(("2cupsEncodeOptions2: Skipping \"%s\".", option->name));
          continue;
        }
      }
      else if (group_tag != IPP_TAG_PRINTER)
      {
	DEBUG_printf(("2cupsEncodeOptions2: Skipping \"%s\".", option->name));
        continue;
      }

      if (group_tag == IPP_TAG_JOB)
        ops = ipp_job_creation;
      else if (group_tag == IPP_TAG_DOCUMENT)
        ops = ipp_doc_creation;
      else
        ops = ipp_set_printer;

      if (!_cups_strcasecmp(option->value, "true") ||
          !_cups_strcasecmp(option->value, "false"))
	value_tag = IPP_TAG_BOOLEAN;
      else
	value_tag = IPP_TAG_NAME;
    }

   /*
    * Verify that we send this attribute for this operation...
    */

    while (*ops != IPP_OP_CUPS_NONE)
      if (op == *ops)
        break;
      else
        ops ++;

    if (*ops == IPP_OP_CUPS_NONE && op != IPP_OP_CUPS_NONE)
    {
      DEBUG_printf(("2cupsEncodeOptions2: Skipping \"%s\".", option->name));
      continue;
    }

   /*
    * Count the number of values...
    */

    if (match && match->multivalue)
    {
      for (count = 1, sep = option->value, quote = 0; *sep; sep ++)
      {
	if (*sep == quote)
	  quote = 0;
	else if (!quote && (*sep == '\'' || *sep == '\"'))
	{
	 /*
	  * Skip quoted option value...
	  */

	  quote = *sep++;
	}
	else if (*sep == ',' && !quote)
	  count ++;
	else if (*sep == '\\' && sep[1])
	  sep += 2;
      }
    }
    else
      count = 1;

    DEBUG_printf(("2cupsEncodeOptions2: option=\"%s\", value=\"%s\", count=%d", option->name, option->value, count));

   /*
    * Allocate memory for the attribute values...
    */

    if ((attr = ippAddStrings(ipp, group_tag, value_tag, option->name, count,
                              NULL, NULL)) == NULL)
    {
     /*
      * Ran out of memory!
      */

      DEBUG_puts("1cupsEncodeOptions2: Ran out of memory for attributes!");
      return;
    }

    if (count > 1)
    {
     /*
      * Make a copy of the value we can fiddle with...
      */

      if ((copy = strdup(option->value)) == NULL)
      {
       /*
	* Ran out of memory!
	*/

	DEBUG_puts("1cupsEncodeOptions2: Ran out of memory for value copy!");
	ippDeleteAttribute(ipp, attr);
	return;
      }

      val = copy;
    }
    else
    {
     /*
      * Since we have a single value, use the value directly...
      */

      val  = option->value;
      copy = NULL;
    }

   /*
    * Scan the value string for values...
    */

    for (j = 0, sep = val; j < count; val = sep, j ++)
    {
     /*
      * Find the end of this value and mark it if needed...
      */

      if (count > 1)
      {
	for (quote = 0; *sep; sep ++)
	{
	  if (*sep == quote)
	  {
	   /*
	    * Finish quoted value...
	    */

	    quote = 0;
	  }
	  else if (!quote && (*sep == '\'' || *sep == '\"'))
	  {
	   /*
	    * Handle quoted option value...
	    */

	    quote = *sep;
	  }
	  else if (*sep == ',' && count > 1)
	    break;
	  else if (*sep == '\\' && sep[1])
	  {
	   /*
	    * Skip quoted character...
	    */

	    memmove(sep, sep + 1, strlen(sep));
	    sep ++;
	  }
	}

	if (*sep == ',')
	  *sep++ = '\0';
      }

     /*
      * Copy the option value(s) over as needed by the type...
      */

      switch (attr->value_tag)
      {
	case IPP_TAG_INTEGER :
	case IPP_TAG_ENUM :
	   /*
	    * Integer/enumeration value...
	    */

            attr->values[j].integer = (int)strtol(val, &s, 10);

            DEBUG_printf(("2cupsEncodeOptions2: Added integer option value "
	                  "%d...", attr->values[j].integer));
            break;

	case IPP_TAG_BOOLEAN :
	    if (!_cups_strcasecmp(val, "true") ||
	        !_cups_strcasecmp(val, "on") ||
	        !_cups_strcasecmp(val, "yes"))
	    {
	     /*
	      * Boolean value - true...
	      */

	      attr->values[j].boolean = 1;

              DEBUG_puts("2cupsEncodeOptions2: Added boolean true value...");
	    }
	    else
	    {
	     /*
	      * Boolean value - false...
	      */

	      attr->values[j].boolean = 0;

              DEBUG_puts("2cupsEncodeOptions2: Added boolean false value...");
	    }
            break;

	case IPP_TAG_RANGE :
	   /*
	    * Range...
	    */

            if (*val == '-')
	    {
	      attr->values[j].range.lower = 1;
	      s = val;
	    }
	    else
	      attr->values[j].range.lower = (int)strtol(val, &s, 10);

	    if (*s == '-')
	    {
	      if (s[1])
		attr->values[j].range.upper = (int)strtol(s + 1, NULL, 10);
	      else
		attr->values[j].range.upper = 2147483647;
            }
	    else
	      attr->values[j].range.upper = attr->values[j].range.lower;

	    DEBUG_printf(("2cupsEncodeOptions2: Added range option value "
	                  "%d-%d...", attr->values[j].range.lower,
			  attr->values[j].range.upper));
            break;

	case IPP_TAG_RESOLUTION :
	   /*
	    * Resolution...
	    */

	    attr->values[j].resolution.xres = (int)strtol(val, &s, 10);

	    if (*s == 'x')
	      attr->values[j].resolution.yres = (int)strtol(s + 1, &s, 10);
	    else
	      attr->values[j].resolution.yres = attr->values[j].resolution.xres;

	    if (!_cups_strcasecmp(s, "dpc") ||
	        !_cups_strcasecmp(s, "dpcm"))
              attr->values[j].resolution.units = IPP_RES_PER_CM;
            else
              attr->values[j].resolution.units = IPP_RES_PER_INCH;

	    DEBUG_printf(("2cupsEncodeOptions2: Added resolution option value "
	                  "%s...", val));
            break;

	case IPP_TAG_STRING :
           /*
	    * octet-string
	    */

            attr->values[j].unknown.length = (int)strlen(val);
	    attr->values[j].unknown.data   = strdup(val);

            DEBUG_printf(("2cupsEncodeOptions2: Added octet-string value "
	                  "\"%s\"...", (char *)attr->values[j].unknown.data));
            break;

        case IPP_TAG_BEGIN_COLLECTION :
	   /*
	    * Collection value
	    */

	    num_cols   = cupsParseOptions(val, 0, &cols);
	    if ((collection = ippNew()) == NULL)
	    {
	      cupsFreeOptions(num_cols, cols);

	      if (copy)
	        free(copy);

	      ippDeleteAttribute(ipp, attr);
	      return;
            }

	    attr->values[j].collection = collection;
	    cupsEncodeOptions2(collection, num_cols, cols, IPP_TAG_JOB);
            cupsFreeOptions(num_cols, cols);
	    break;

	default :
	    if ((attr->values[j].string.text = _cupsStrAlloc(val)) == NULL)
	    {
	     /*
	      * Ran out of memory!
	      */

	      DEBUG_puts("1cupsEncodeOptions2: Ran out of memory for string!");

	      if (copy)
	        free(copy);

	      ippDeleteAttribute(ipp, attr);
	      return;
	    }

	    DEBUG_printf(("2cupsEncodeOptions2: Added string value \"%s\"...",
	                  val));
            break;
      }
    }

    if (copy)
      free(copy);
  }
}


#ifdef DEBUG
/*
 * '_ippCheckOptions()' - Validate that the option array is sorted properly.
 */

const char *				/* O - First out-of-order option or NULL */
_ippCheckOptions(void)
{
  int	i;				/* Looping var */


  for (i = 0; i < (int)(sizeof(ipp_options) / sizeof(ipp_options[0]) - 1); i ++)
    if (strcmp(ipp_options[i].name, ipp_options[i + 1].name) >= 0)
      return (ipp_options[i + 1].name);

  return (NULL);
}
#endif /* DEBUG */


/*
 * '_ippFindOption()' - Find the attribute information for an option.
 */

_ipp_option_t *				/* O - Attribute information */
_ippFindOption(const char *name)	/* I - Option/attribute name */
{
  _ipp_option_t	key;			/* Search key */


 /*
  * Lookup the proper value and group tags for this option...
  */

  key.name = name;

  return ((_ipp_option_t *)bsearch(&key, ipp_options,
                                   sizeof(ipp_options) / sizeof(ipp_options[0]),
				   sizeof(ipp_options[0]),
				   (int (*)(const void *, const void *))
				       compare_ipp_options));
}


/*
 * 'compare_ipp_options()' - Compare two IPP options.
 */

static int				/* O - Result of comparison */
compare_ipp_options(_ipp_option_t *a,	/* I - First option */
                    _ipp_option_t *b)	/* I - Second option */
{
  return (strcmp(a->name, b->name));
}