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1 /*
2  * PPD code emission routines for CUPS.
3  *
4  * Copyright 2007-2015 by Apple Inc.
5  * Copyright 1997-2007 by Easy Software Products, all rights reserved.
6  *
7  * These coded instructions, statements, and computer programs are the
8  * property of Apple Inc. and are protected by Federal copyright
9  * law.  Distribution and use rights are outlined in the file "LICENSE.txt"
10  * which should have been included with this file.  If this file is
11  * missing or damaged, see the license at "http://www.cups.org/".
12  *
13  * PostScript is a trademark of Adobe Systems, Inc.
14  *
15  * This file is subject to the Apple OS-Developed Software exception.
16  */
17 
18 /*
19  * Include necessary headers...
20  */
21 
22 #include "cups-private.h"
23 #include "ppd.h"
24 #if defined(_WIN32) || defined(__EMX__)
25 #  include <io.h>
26 #else
27 #  include <unistd.h>
28 #endif /* _WIN32 || __EMX__ */
29 
30 
31 /*
32  * Local functions...
33  */
34 
35 static int	ppd_compare_cparams(ppd_cparam_t *a, ppd_cparam_t *b);
36 static void	ppd_handle_media(ppd_file_t *ppd);
37 
38 
39 /*
40  * Local globals...
41  */
42 
43 static const char ppd_custom_code[] =
44 		"pop pop pop\n"
45 		"<</PageSize[5 -2 roll]/ImagingBBox null>>setpagedevice\n";
46 
47 
48 /*
49  * 'ppdCollect()' - Collect all marked options that reside in the specified
50  *                  section.
51  *
52  * The choices array should be freed using @code free@ when you are
53  * finished with it.
54  */
55 
56 int					/* O - Number of options marked */
ppdCollect(ppd_file_t * ppd,ppd_section_t section,ppd_choice_t *** choices)57 ppdCollect(ppd_file_t    *ppd,		/* I - PPD file data */
58            ppd_section_t section,	/* I - Section to collect */
59            ppd_choice_t  ***choices)	/* O - Pointers to choices */
60 {
61   return (ppdCollect2(ppd, section, 0.0, choices));
62 }
63 
64 
65 /*
66  * 'ppdCollect2()' - Collect all marked options that reside in the
67  *                   specified section and minimum order.
68  *
69  * The choices array should be freed using @code free@ when you are
70  * finished with it.
71  *
72  * @since CUPS 1.2/macOS 10.5@
73  */
74 
75 int					/* O - Number of options marked */
ppdCollect2(ppd_file_t * ppd,ppd_section_t section,float min_order,ppd_choice_t *** choices)76 ppdCollect2(ppd_file_t    *ppd,		/* I - PPD file data */
77             ppd_section_t section,	/* I - Section to collect */
78 	    float         min_order,	/* I - Minimum OrderDependency value */
79             ppd_choice_t  ***choices)	/* O - Pointers to choices */
80 {
81   ppd_choice_t	*c;			/* Current choice */
82   ppd_section_t	csection;		/* Current section */
83   float		corder;			/* Current OrderDependency value */
84   int		count;			/* Number of choices collected */
85   ppd_choice_t	**collect;		/* Collected choices */
86   float		*orders;		/* Collected order values */
87 
88 
89   DEBUG_printf(("ppdCollect2(ppd=%p, section=%d, min_order=%f, choices=%p)",
90                 ppd, section, min_order, choices));
91 
92   if (!ppd || !choices)
93   {
94     if (choices)
95       *choices = NULL;
96 
97     return (0);
98   }
99 
100  /*
101   * Allocate memory for up to N selected choices...
102   */
103 
104   count = 0;
105   if ((collect = calloc(sizeof(ppd_choice_t *),
106                         (size_t)cupsArrayCount(ppd->marked))) == NULL)
107   {
108     *choices = NULL;
109     return (0);
110   }
111 
112   if ((orders = calloc(sizeof(float), (size_t)cupsArrayCount(ppd->marked))) == NULL)
113   {
114     *choices = NULL;
115     free(collect);
116     return (0);
117   }
118 
119  /*
120   * Loop through all options and add choices as needed...
121   */
122 
123   for (c = (ppd_choice_t *)cupsArrayFirst(ppd->marked);
124        c;
125        c = (ppd_choice_t *)cupsArrayNext(ppd->marked))
126   {
127     csection = c->option->section;
128     corder   = c->option->order;
129 
130     if (!strcmp(c->choice, "Custom"))
131     {
132       ppd_attr_t	*attr;		/* NonUIOrderDependency value */
133       float		aorder;		/* Order value */
134       char		asection[17],	/* Section name */
135 			amain[PPD_MAX_NAME + 1],
136 			aoption[PPD_MAX_NAME];
137 					/* *CustomFoo and True */
138 
139 
140       for (attr = ppdFindAttr(ppd, "NonUIOrderDependency", NULL);
141            attr;
142 	   attr = ppdFindNextAttr(ppd, "NonUIOrderDependency", NULL))
143         if (attr->value &&
144 	    sscanf(attr->value, "%f%16s%41s%40s", &aorder, asection, amain,
145 	           aoption) == 4 &&
146 	    !strncmp(amain, "*Custom", 7) &&
147 	    !strcmp(amain + 7, c->option->keyword) && !strcmp(aoption, "True"))
148 	{
149 	 /*
150 	  * Use this NonUIOrderDependency...
151 	  */
152 
153           corder = aorder;
154 
155 	  if (!strcmp(asection, "DocumentSetup"))
156 	    csection = PPD_ORDER_DOCUMENT;
157 	  else if (!strcmp(asection, "ExitServer"))
158 	    csection = PPD_ORDER_EXIT;
159 	  else if (!strcmp(asection, "JCLSetup"))
160 	    csection = PPD_ORDER_JCL;
161 	  else if (!strcmp(asection, "PageSetup"))
162 	    csection = PPD_ORDER_PAGE;
163 	  else if (!strcmp(asection, "Prolog"))
164 	    csection = PPD_ORDER_PROLOG;
165 	  else
166 	    csection = PPD_ORDER_ANY;
167 
168 	  break;
169 	}
170     }
171 
172     if (csection == section && corder >= min_order)
173     {
174       collect[count] = c;
175       orders[count]  = corder;
176       count ++;
177     }
178   }
179 
180  /*
181   * If we have more than 1 marked choice, sort them...
182   */
183 
184   if (count > 1)
185   {
186     int i, j;				/* Looping vars */
187 
188     for (i = 0; i < (count - 1); i ++)
189       for (j = i + 1; j < count; j ++)
190         if (orders[i] > orders[j])
191 	{
192 	  c          = collect[i];
193 	  corder     = orders[i];
194 	  collect[i] = collect[j];
195 	  orders[i]  = orders[j];
196 	  collect[j] = c;
197 	  orders[j]  = corder;
198 	}
199   }
200 
201   free(orders);
202 
203   DEBUG_printf(("2ppdCollect2: %d marked choices...", count));
204 
205  /*
206   * Return the array and number of choices; if 0, free the array since
207   * it isn't needed.
208   */
209 
210   if (count > 0)
211   {
212     *choices = collect;
213     return (count);
214   }
215   else
216   {
217     *choices = NULL;
218     free(collect);
219     return (0);
220   }
221 }
222 
223 
224 /*
225  * 'ppdEmit()' - Emit code for marked options to a file.
226  */
227 
228 int					/* O - 0 on success, -1 on failure */
ppdEmit(ppd_file_t * ppd,FILE * fp,ppd_section_t section)229 ppdEmit(ppd_file_t    *ppd,		/* I - PPD file record */
230         FILE          *fp,		/* I - File to write to */
231         ppd_section_t section)		/* I - Section to write */
232 {
233   return (ppdEmitAfterOrder(ppd, fp, section, 0, 0.0));
234 }
235 
236 
237 /*
238  * 'ppdEmitAfterOrder()' - Emit a subset of the code for marked options to a file.
239  *
240  * When "limit" is non-zero, this function only emits options whose
241  * OrderDependency value is greater than or equal to "min_order".
242  *
243  * When "limit" is zero, this function is identical to ppdEmit().
244  *
245  * @since CUPS 1.2/macOS 10.5@
246  */
247 
248 int					/* O - 0 on success, -1 on failure */
ppdEmitAfterOrder(ppd_file_t * ppd,FILE * fp,ppd_section_t section,int limit,float min_order)249 ppdEmitAfterOrder(
250     ppd_file_t    *ppd,			/* I - PPD file record */
251     FILE          *fp,			/* I - File to write to */
252     ppd_section_t section,		/* I - Section to write */
253     int		  limit,		/* I - Non-zero to use min_order */
254     float         min_order)		/* I - Lowest OrderDependency */
255 {
256   char	*buffer;			/* Option code */
257   int	status;				/* Return status */
258 
259 
260  /*
261   * Range check input...
262   */
263 
264   if (!ppd || !fp)
265     return (-1);
266 
267  /*
268   * Get the string...
269   */
270 
271   buffer = ppdEmitString(ppd, section, limit ? min_order : 0.0f);
272 
273  /*
274   * Write it as needed and return...
275   */
276 
277   if (buffer)
278   {
279     status = fputs(buffer, fp) < 0 ? -1 : 0;
280 
281     free(buffer);
282   }
283   else
284     status = 0;
285 
286   return (status);
287 }
288 
289 
290 /*
291  * 'ppdEmitFd()' - Emit code for marked options to a file.
292  */
293 
294 int					/* O - 0 on success, -1 on failure */
ppdEmitFd(ppd_file_t * ppd,int fd,ppd_section_t section)295 ppdEmitFd(ppd_file_t    *ppd,		/* I - PPD file record */
296           int           fd,		/* I - File to write to */
297           ppd_section_t section)	/* I - Section to write */
298 {
299   char		*buffer,		/* Option code */
300 		*bufptr;		/* Pointer into code */
301   size_t	buflength;		/* Length of option code */
302   ssize_t	bytes;			/* Bytes written */
303   int		status;			/* Return status */
304 
305 
306  /*
307   * Range check input...
308   */
309 
310   if (!ppd || fd < 0)
311     return (-1);
312 
313  /*
314   * Get the string...
315   */
316 
317   buffer = ppdEmitString(ppd, section, 0.0);
318 
319  /*
320   * Write it as needed and return...
321   */
322 
323   if (buffer)
324   {
325     buflength = strlen(buffer);
326     bufptr    = buffer;
327     bytes     = 0;
328 
329     while (buflength > 0)
330     {
331 #ifdef _WIN32
332       if ((bytes = (ssize_t)write(fd, bufptr, (unsigned)buflength)) < 0)
333 #else
334       if ((bytes = write(fd, bufptr, buflength)) < 0)
335 #endif /* _WIN32 */
336       {
337         if (errno == EAGAIN || errno == EINTR)
338 	  continue;
339 
340 	break;
341       }
342 
343       buflength -= (size_t)bytes;
344       bufptr    += bytes;
345     }
346 
347     status = bytes < 0 ? -1 : 0;
348 
349     free(buffer);
350   }
351   else
352     status = 0;
353 
354   return (status);
355 }
356 
357 
358 /*
359  * 'ppdEmitJCL()' - Emit code for JCL options to a file.
360  */
361 
362 int					/* O - 0 on success, -1 on failure */
ppdEmitJCL(ppd_file_t * ppd,FILE * fp,int job_id,const char * user,const char * title)363 ppdEmitJCL(ppd_file_t *ppd,		/* I - PPD file record */
364            FILE       *fp,		/* I - File to write to */
365            int        job_id,		/* I - Job ID */
366 	   const char *user,		/* I - Username */
367 	   const char *title)		/* I - Title */
368 {
369   char		*ptr;			/* Pointer into JCL string */
370   char		temp[65],		/* Local title string */
371 		displaymsg[33];		/* Local display string */
372 
373 
374  /*
375   * Range check the input...
376   */
377 
378   if (!ppd || !ppd->jcl_begin || !ppd->jcl_ps)
379     return (0);
380 
381  /*
382   * See if the printer supports HP PJL...
383   */
384 
385   if (!strncmp(ppd->jcl_begin, "\033%-12345X@", 10))
386   {
387    /*
388     * This printer uses HP PJL commands for output; filter the output
389     * so that we only have a single "@PJL JOB" command in the header...
390     *
391     * To avoid bugs in the PJL implementation of certain vendors' products
392     * (Xerox in particular), we add a dummy "@PJL" command at the beginning
393     * of the PJL commands to initialize PJL processing.
394     */
395 
396     ppd_attr_t	*charset;		/* PJL charset */
397     ppd_attr_t	*display;		/* PJL display command */
398 
399 
400     if ((charset = ppdFindAttr(ppd, "cupsPJLCharset", NULL)) != NULL)
401     {
402       if (!charset->value || _cups_strcasecmp(charset->value, "UTF-8"))
403         charset = NULL;
404     }
405 
406     if ((display = ppdFindAttr(ppd, "cupsPJLDisplay", NULL)) != NULL)
407     {
408       if (!display->value)
409         display = NULL;
410     }
411 
412     fputs("\033%-12345X@PJL\n", fp);
413     for (ptr = ppd->jcl_begin + 9; *ptr;)
414       if (!strncmp(ptr, "@PJL JOB", 8))
415       {
416        /*
417         * Skip job command...
418 	*/
419 
420         for (;*ptr; ptr ++)
421 	  if (*ptr == '\n')
422 	    break;
423 
424 	if (*ptr)
425 	  ptr ++;
426       }
427       else
428       {
429        /*
430         * Copy line...
431 	*/
432 
433         for (;*ptr; ptr ++)
434 	{
435 	  putc(*ptr, fp);
436 	  if (*ptr == '\n')
437 	    break;
438 	}
439 
440 	if (*ptr)
441 	  ptr ++;
442       }
443 
444    /*
445     * Clean up the job title...
446     */
447 
448     if ((ptr = strrchr(title, '/')) != NULL)
449     {
450      /*
451       * Only show basename of file path...
452       */
453 
454       title = ptr + 1;
455     }
456 
457     if (!strncmp(title, "smbprn.", 7))
458     {
459      /*
460       * Skip leading smbprn.######## from Samba jobs...
461       */
462 
463       for (title += 7; *title && isdigit(*title & 255); title ++);
464       while (_cups_isspace(*title))
465         title ++;
466 
467       if ((ptr = strstr(title, " - ")) != NULL)
468       {
469        /*
470 	* Skip application name in "Some Application - Title of job"...
471 	*/
472 
473 	title = ptr + 3;
474       }
475     }
476 
477    /*
478     * Replace double quotes with single quotes and UTF-8 characters with
479     * question marks so that the title does not cause a PJL syntax error.
480     */
481 
482     strlcpy(temp, title, sizeof(temp));
483 
484     for (ptr = temp; *ptr; ptr ++)
485       if (*ptr == '\"')
486         *ptr = '\'';
487       else if (!charset && (*ptr & 128))
488         *ptr = '?';
489 
490    /*
491     * CUPS STR #3125: Long PJL JOB NAME causes problems with some printers
492     *
493     * Generate the display message, truncating at 32 characters + nul to avoid
494     * issues with some printer's PJL implementations...
495     */
496 
497     snprintf(displaymsg, sizeof(displaymsg), "%d %s %s", job_id, user, temp);
498 
499    /*
500     * Send PJL JOB and PJL RDYMSG commands before we enter PostScript mode...
501     */
502 
503     if (display && strcmp(display->value, "job"))
504       fprintf(fp, "@PJL JOB NAME = \"%s\"\n", temp);
505     else if (display && !strcmp(display->value, "rdymsg"))
506       fprintf(fp, "@PJL RDYMSG DISPLAY = \"%s\"\n", displaymsg);
507     else
508       fprintf(fp, "@PJL JOB NAME = \"%s\" DISPLAY = \"%s\"\n", temp,
509 	      displaymsg);
510 
511    /*
512     * Replace double quotes with single quotes and UTF-8 characters with
513     * question marks so that the user does not cause a PJL syntax error.
514     */
515 
516     strlcpy(temp, user, sizeof(temp));
517 
518     for (ptr = temp; *ptr; ptr ++)
519       if (*ptr == '\"')
520         *ptr = '\'';
521       else if (!charset && (*ptr & 128))
522         *ptr = '?';
523 
524     fprintf(fp, "@PJL SET USERNAME = \"%s\"\n", temp);
525   }
526   else
527     fputs(ppd->jcl_begin, fp);
528 
529   ppdEmit(ppd, fp, PPD_ORDER_JCL);
530   fputs(ppd->jcl_ps, fp);
531 
532   return (0);
533 }
534 
535 
536 /*
537  * 'ppdEmitJCLEnd()' - Emit JCLEnd code to a file.
538  *
539  * @since CUPS 1.2/macOS 10.5@
540  */
541 
542 int					/* O - 0 on success, -1 on failure */
ppdEmitJCLEnd(ppd_file_t * ppd,FILE * fp)543 ppdEmitJCLEnd(ppd_file_t *ppd,		/* I - PPD file record */
544               FILE       *fp)		/* I - File to write to */
545 {
546  /*
547   * Range check the input...
548   */
549 
550   if (!ppd)
551     return (0);
552 
553   if (!ppd->jcl_end)
554   {
555     if (ppd->num_filters == 0)
556       putc(0x04, fp);
557 
558     return (0);
559   }
560 
561  /*
562   * See if the printer supports HP PJL...
563   */
564 
565   if (!strncmp(ppd->jcl_end, "\033%-12345X@", 10))
566   {
567    /*
568     * This printer uses HP PJL commands for output; filter the output
569     * so that we only have a single "@PJL JOB" command in the header...
570     *
571     * To avoid bugs in the PJL implementation of certain vendors' products
572     * (Xerox in particular), we add a dummy "@PJL" command at the beginning
573     * of the PJL commands to initialize PJL processing.
574     */
575 
576     fputs("\033%-12345X@PJL\n", fp);
577     fputs("@PJL RDYMSG DISPLAY = \"\"\n", fp);
578     fputs(ppd->jcl_end + 9, fp);
579   }
580   else
581     fputs(ppd->jcl_end, fp);
582 
583   return (0);
584 }
585 
586 
587 /*
588  * 'ppdEmitString()' - Get a string containing the code for marked options.
589  *
590  * When "min_order" is greater than zero, this function only includes options
591  * whose OrderDependency value is greater than or equal to "min_order".
592  * Otherwise, all options in the specified section are included in the
593  * returned string.
594  *
595  * The return string is allocated on the heap and should be freed using
596  * @code free@ when you are done with it.
597  *
598  * @since CUPS 1.2/macOS 10.5@
599  */
600 
601 char *					/* O - String containing option code or @code NULL@ if there is no option code */
ppdEmitString(ppd_file_t * ppd,ppd_section_t section,float min_order)602 ppdEmitString(ppd_file_t    *ppd,	/* I - PPD file record */
603               ppd_section_t section,	/* I - Section to write */
604 	      float         min_order)	/* I - Lowest OrderDependency */
605 {
606   int		i, j,			/* Looping vars */
607 		count;			/* Number of choices */
608   ppd_choice_t	**choices;		/* Choices */
609   ppd_size_t	*size;			/* Custom page size */
610   ppd_coption_t	*coption;		/* Custom option */
611   ppd_cparam_t	*cparam;		/* Custom parameter */
612   size_t	bufsize;		/* Size of string buffer needed */
613   char		*buffer,		/* String buffer */
614 		*bufptr,		/* Pointer into buffer */
615 		*bufend;		/* End of buffer */
616   struct lconv	*loc;			/* Locale data */
617 
618 
619   DEBUG_printf(("ppdEmitString(ppd=%p, section=%d, min_order=%f)",
620                 ppd, section, min_order));
621 
622  /*
623   * Range check input...
624   */
625 
626   if (!ppd)
627     return (NULL);
628 
629  /*
630   * Use PageSize or PageRegion as required...
631   */
632 
633   ppd_handle_media(ppd);
634 
635  /*
636   * Collect the options we need to emit...
637   */
638 
639   if ((count = ppdCollect2(ppd, section, min_order, &choices)) == 0)
640     return (NULL);
641 
642  /*
643   * Count the number of bytes that are required to hold all of the
644   * option code...
645   */
646 
647   for (i = 0, bufsize = 1; i < count; i ++)
648   {
649     if (section == PPD_ORDER_JCL)
650     {
651       if (!_cups_strcasecmp(choices[i]->choice, "Custom") &&
652 	  (coption = ppdFindCustomOption(ppd, choices[i]->option->keyword))
653 	      != NULL)
654       {
655        /*
656         * Add space to account for custom parameter substitution...
657 	*/
658 
659         for (cparam = (ppd_cparam_t *)cupsArrayFirst(coption->params);
660 	     cparam;
661 	     cparam = (ppd_cparam_t *)cupsArrayNext(coption->params))
662 	{
663           switch (cparam->type)
664 	  {
665 	    case PPD_CUSTOM_CURVE :
666 	    case PPD_CUSTOM_INVCURVE :
667 	    case PPD_CUSTOM_POINTS :
668 	    case PPD_CUSTOM_REAL :
669 	    case PPD_CUSTOM_INT :
670 	        bufsize += 10;
671 	        break;
672 
673 	    case PPD_CUSTOM_PASSCODE :
674 	    case PPD_CUSTOM_PASSWORD :
675 	    case PPD_CUSTOM_STRING :
676 	        if (cparam->current.custom_string)
677 		  bufsize += strlen(cparam->current.custom_string);
678 	        break;
679           }
680 	}
681       }
682     }
683     else if (section != PPD_ORDER_EXIT)
684     {
685       bufsize += 3;			/* [{\n */
686 
687       if ((!_cups_strcasecmp(choices[i]->option->keyword, "PageSize") ||
688            !_cups_strcasecmp(choices[i]->option->keyword, "PageRegion")) &&
689           !_cups_strcasecmp(choices[i]->choice, "Custom"))
690       {
691         DEBUG_puts("2ppdEmitString: Custom size set!");
692 
693         bufsize += 37;			/* %%BeginFeature: *CustomPageSize True\n */
694         bufsize += 50;			/* Five 9-digit numbers + newline */
695       }
696       else if (!_cups_strcasecmp(choices[i]->choice, "Custom") &&
697                (coption = ppdFindCustomOption(ppd,
698 	                                      choices[i]->option->keyword))
699 	           != NULL)
700       {
701         bufsize += 23 + strlen(choices[i]->option->keyword) + 6;
702 					/* %%BeginFeature: *Customkeyword True\n */
703 
704 
705         for (cparam = (ppd_cparam_t *)cupsArrayFirst(coption->params);
706 	     cparam;
707 	     cparam = (ppd_cparam_t *)cupsArrayNext(coption->params))
708 	{
709           switch (cparam->type)
710 	  {
711 	    case PPD_CUSTOM_CURVE :
712 	    case PPD_CUSTOM_INVCURVE :
713 	    case PPD_CUSTOM_POINTS :
714 	    case PPD_CUSTOM_REAL :
715 	    case PPD_CUSTOM_INT :
716 	        bufsize += 10;
717 	        break;
718 
719 	    case PPD_CUSTOM_PASSCODE :
720 	    case PPD_CUSTOM_PASSWORD :
721 	    case PPD_CUSTOM_STRING :
722 		bufsize += 3;
723 	        if (cparam->current.custom_string)
724 		  bufsize += 4 * strlen(cparam->current.custom_string);
725 	        break;
726           }
727 	}
728       }
729       else
730         bufsize += 17 + strlen(choices[i]->option->keyword) + 1 +
731 	           strlen(choices[i]->choice) + 1;
732 					/* %%BeginFeature: *keyword choice\n */
733 
734       bufsize += 13;			/* %%EndFeature\n */
735       bufsize += 22;			/* } stopped cleartomark\n */
736     }
737 
738     if (choices[i]->code)
739       bufsize += strlen(choices[i]->code) + 1;
740     else
741       bufsize += strlen(ppd_custom_code);
742   }
743 
744  /*
745   * Allocate memory...
746   */
747 
748   DEBUG_printf(("2ppdEmitString: Allocating %d bytes for string...",
749                 (int)bufsize));
750 
751   if ((buffer = calloc(1, bufsize)) == NULL)
752   {
753     free(choices);
754     return (NULL);
755   }
756 
757   bufend = buffer + bufsize - 1;
758   loc    = localeconv();
759 
760  /*
761   * Copy the option code to the buffer...
762   */
763 
764   for (i = 0, bufptr = buffer; i < count; i ++, bufptr += strlen(bufptr))
765     if (section == PPD_ORDER_JCL)
766     {
767       if (!_cups_strcasecmp(choices[i]->choice, "Custom") &&
768 	  choices[i]->code &&
769           (coption = ppdFindCustomOption(ppd, choices[i]->option->keyword))
770 	      != NULL)
771       {
772        /*
773         * Handle substitutions in custom JCL options...
774 	*/
775 
776 	char	*cptr;			/* Pointer into code */
777 	int	pnum;			/* Parameter number */
778 
779 
780         for (cptr = choices[i]->code; *cptr && bufptr < bufend;)
781 	{
782 	  if (*cptr == '\\')
783 	  {
784 	    cptr ++;
785 
786 	    if (isdigit(*cptr & 255))
787 	    {
788 	     /*
789 	      * Substitute parameter...
790 	      */
791 
792               pnum = *cptr++ - '0';
793 	      while (isdigit(*cptr & 255))
794 	        pnum = pnum * 10 + *cptr++ - '0';
795 
796               for (cparam = (ppd_cparam_t *)cupsArrayFirst(coption->params);
797 	           cparam;
798 		   cparam = (ppd_cparam_t *)cupsArrayNext(coption->params))
799 		if (cparam->order == pnum)
800 		  break;
801 
802               if (cparam)
803 	      {
804 	        switch (cparam->type)
805 		{
806 		  case PPD_CUSTOM_CURVE :
807 		  case PPD_CUSTOM_INVCURVE :
808 		  case PPD_CUSTOM_POINTS :
809 		  case PPD_CUSTOM_REAL :
810 		      bufptr = _cupsStrFormatd(bufptr, bufend,
811 					       cparam->current.custom_real,
812 					       loc);
813 		      break;
814 
815 		  case PPD_CUSTOM_INT :
816 		      snprintf(bufptr, (size_t)(bufend - bufptr), "%d", cparam->current.custom_int);
817 		      bufptr += strlen(bufptr);
818 		      break;
819 
820 		  case PPD_CUSTOM_PASSCODE :
821 		  case PPD_CUSTOM_PASSWORD :
822 		  case PPD_CUSTOM_STRING :
823 		      if (cparam->current.custom_string)
824 		      {
825 			strlcpy(bufptr, cparam->current.custom_string, (size_t)(bufend - bufptr));
826 			bufptr += strlen(bufptr);
827 		      }
828 		      break;
829 		}
830 	      }
831 	    }
832 	    else if (*cptr)
833 	      *bufptr++ = *cptr++;
834 	  }
835 	  else
836 	    *bufptr++ = *cptr++;
837 	}
838       }
839       else
840       {
841        /*
842         * Otherwise just copy the option code directly...
843 	*/
844 
845         strlcpy(bufptr, choices[i]->code, (size_t)(bufend - bufptr + 1));
846         bufptr += strlen(bufptr);
847       }
848     }
849     else if (section != PPD_ORDER_EXIT)
850     {
851      /*
852       * Add wrapper commands to prevent printer errors for unsupported
853       * options...
854       */
855 
856       strlcpy(bufptr, "[{\n", (size_t)(bufend - bufptr + 1));
857       bufptr += 3;
858 
859      /*
860       * Send DSC comments with option...
861       */
862 
863       DEBUG_printf(("2ppdEmitString: Adding code for %s=%s...",
864 		    choices[i]->option->keyword, choices[i]->choice));
865 
866       if ((!_cups_strcasecmp(choices[i]->option->keyword, "PageSize") ||
867            !_cups_strcasecmp(choices[i]->option->keyword, "PageRegion")) &&
868           !_cups_strcasecmp(choices[i]->choice, "Custom"))
869       {
870        /*
871         * Variable size; write out standard size options, using the
872 	* parameter positions defined in the PPD file...
873 	*/
874 
875         ppd_attr_t	*attr;		/* PPD attribute */
876 	int		pos,		/* Position of custom value */
877 			orientation;	/* Orientation to use */
878 	float		values[5];	/* Values for custom command */
879 
880 
881         strlcpy(bufptr, "%%BeginFeature: *CustomPageSize True\n", (size_t)(bufend - bufptr + 1));
882         bufptr += 37;
883 
884         size = ppdPageSize(ppd, "Custom");
885 
886         memset(values, 0, sizeof(values));
887 
888 	if ((attr = ppdFindAttr(ppd, "ParamCustomPageSize", "Width")) != NULL)
889 	{
890 	  pos = atoi(attr->value) - 1;
891 
892           if (pos < 0 || pos > 4)
893 	    pos = 0;
894 	}
895 	else
896 	  pos = 0;
897 
898 	values[pos] = size->width;
899 
900 	if ((attr = ppdFindAttr(ppd, "ParamCustomPageSize", "Height")) != NULL)
901 	{
902 	  pos = atoi(attr->value) - 1;
903 
904           if (pos < 0 || pos > 4)
905 	    pos = 1;
906 	}
907 	else
908 	  pos = 1;
909 
910 	values[pos] = size->length;
911 
912        /*
913         * According to the Adobe PPD specification, an orientation of 1
914 	* will produce a print that comes out upside-down with the X
915 	* axis perpendicular to the direction of feed, which is exactly
916 	* what we want to be consistent with non-PS printers.
917 	*
918 	* We could also use an orientation of 3 to produce output that
919 	* comes out rightside-up (this is the default for many large format
920 	* printer PPDs), however for consistency we will stick with the
921 	* value 1.
922 	*
923 	* If we wanted to get fancy, we could use orientations of 0 or
924 	* 2 and swap the width and length, however we don't want to get
925 	* fancy, we just want it to work consistently.
926 	*
927 	* The orientation value is range limited by the Orientation
928 	* parameter definition, so certain non-PS printer drivers that
929 	* only support an Orientation of 0 will get the value 0 as
930 	* expected.
931 	*/
932 
933         orientation = 1;
934 
935 	if ((attr = ppdFindAttr(ppd, "ParamCustomPageSize",
936 	                        "Orientation")) != NULL)
937 	{
938 	  int min_orient, max_orient;	/* Minimum and maximum orientations */
939 
940 
941           if (sscanf(attr->value, "%d%*s%d%d", &pos, &min_orient,
942 	             &max_orient) != 3)
943 	    pos = 4;
944 	  else
945 	  {
946 	    pos --;
947 
948             if (pos < 0 || pos > 4)
949 	      pos = 4;
950 
951             if (orientation > max_orient)
952 	      orientation = max_orient;
953 	    else if (orientation < min_orient)
954 	      orientation = min_orient;
955 	  }
956 	}
957 	else
958 	  pos = 4;
959 
960 	values[pos] = (float)orientation;
961 
962         for (pos = 0; pos < 5; pos ++)
963 	{
964 	  bufptr    = _cupsStrFormatd(bufptr, bufend, values[pos], loc);
965 	  *bufptr++ = '\n';
966         }
967 
968 	if (!choices[i]->code)
969 	{
970 	 /*
971 	  * This can happen with certain buggy PPD files that don't include
972 	  * a CustomPageSize command sequence...  We just use a generic
973 	  * Level 2 command sequence...
974 	  */
975 
976 	  strlcpy(bufptr, ppd_custom_code, (size_t)(bufend - bufptr + 1));
977           bufptr += strlen(bufptr);
978 	}
979       }
980       else if (!_cups_strcasecmp(choices[i]->choice, "Custom") &&
981                (coption = ppdFindCustomOption(ppd, choices[i]->option->keyword))
982 	           != NULL)
983       {
984        /*
985         * Custom option...
986 	*/
987 
988         const char	*s;		/* Pointer into string value */
989         cups_array_t	*params;	/* Parameters in the correct output order */
990 
991 
992         params = cupsArrayNew((cups_array_func_t)ppd_compare_cparams, NULL);
993 
994         for (cparam = (ppd_cparam_t *)cupsArrayFirst(coption->params);
995 	     cparam;
996 	     cparam = (ppd_cparam_t *)cupsArrayNext(coption->params))
997           cupsArrayAdd(params, cparam);
998 
999         snprintf(bufptr, (size_t)(bufend - bufptr + 1), "%%%%BeginFeature: *Custom%s True\n", coption->keyword);
1000         bufptr += strlen(bufptr);
1001 
1002         for (cparam = (ppd_cparam_t *)cupsArrayFirst(params);
1003 	     cparam;
1004 	     cparam = (ppd_cparam_t *)cupsArrayNext(params))
1005 	{
1006           switch (cparam->type)
1007 	  {
1008 	    case PPD_CUSTOM_CURVE :
1009 	    case PPD_CUSTOM_INVCURVE :
1010 	    case PPD_CUSTOM_POINTS :
1011 	    case PPD_CUSTOM_REAL :
1012 	        bufptr    = _cupsStrFormatd(bufptr, bufend,
1013 		                            cparam->current.custom_real, loc);
1014                 *bufptr++ = '\n';
1015 	        break;
1016 
1017 	    case PPD_CUSTOM_INT :
1018 	        snprintf(bufptr, (size_t)(bufend - bufptr + 1), "%d\n", cparam->current.custom_int);
1019 		bufptr += strlen(bufptr);
1020 	        break;
1021 
1022 	    case PPD_CUSTOM_PASSCODE :
1023 	    case PPD_CUSTOM_PASSWORD :
1024 	    case PPD_CUSTOM_STRING :
1025 	        *bufptr++ = '(';
1026 
1027 		if (cparam->current.custom_string)
1028 		{
1029 		  for (s = cparam->current.custom_string; *s; s ++)
1030 		  {
1031 		    if (*s < ' ' || *s == '(' || *s == ')' || *s >= 127)
1032 		    {
1033 		      snprintf(bufptr, (size_t)(bufend - bufptr + 1), "\\%03o", *s & 255);
1034 		      bufptr += strlen(bufptr);
1035 		    }
1036 		    else
1037 		      *bufptr++ = *s;
1038 		  }
1039 		}
1040 
1041 	        *bufptr++ = ')';
1042 		*bufptr++ = '\n';
1043 	        break;
1044           }
1045 	}
1046 
1047 	cupsArrayDelete(params);
1048       }
1049       else
1050       {
1051         snprintf(bufptr, (size_t)(bufend - bufptr + 1), "%%%%BeginFeature: *%s %s\n", choices[i]->option->keyword, choices[i]->choice);
1052 	bufptr += strlen(bufptr);
1053       }
1054 
1055       if (choices[i]->code && choices[i]->code[0])
1056       {
1057         j = (int)strlen(choices[i]->code);
1058 	memcpy(bufptr, choices[i]->code, (size_t)j);
1059 	bufptr += j;
1060 
1061 	if (choices[i]->code[j - 1] != '\n')
1062 	  *bufptr++ = '\n';
1063       }
1064 
1065       strlcpy(bufptr, "%%EndFeature\n"
1066 		      "} stopped cleartomark\n", (size_t)(bufend - bufptr + 1));
1067       bufptr += strlen(bufptr);
1068 
1069       DEBUG_printf(("2ppdEmitString: Offset in string is %d...",
1070                     (int)(bufptr - buffer)));
1071     }
1072     else
1073     {
1074       strlcpy(bufptr, choices[i]->code, (size_t)(bufend - bufptr + 1));
1075       bufptr += strlen(bufptr);
1076     }
1077 
1078  /*
1079   * Nul-terminate, free, and return...
1080   */
1081 
1082   *bufptr = '\0';
1083 
1084   free(choices);
1085 
1086   return (buffer);
1087 }
1088 
1089 
1090 /*
1091  * 'ppd_compare_cparams()' - Compare the order of two custom parameters.
1092  */
1093 
1094 static int				/* O - Result of comparison */
ppd_compare_cparams(ppd_cparam_t * a,ppd_cparam_t * b)1095 ppd_compare_cparams(ppd_cparam_t *a,	/* I - First parameter */
1096                     ppd_cparam_t *b)	/* I - Second parameter */
1097 {
1098   return (a->order - b->order);
1099 }
1100 
1101 
1102 /*
1103  * 'ppd_handle_media()' - Handle media selection...
1104  */
1105 
1106 static void
ppd_handle_media(ppd_file_t * ppd)1107 ppd_handle_media(ppd_file_t *ppd)	/* I - PPD file */
1108 {
1109   ppd_choice_t	*manual_feed,		/* ManualFeed choice, if any */
1110 		*input_slot;		/* InputSlot choice, if any */
1111   ppd_size_t	*size;			/* Current media size */
1112   ppd_attr_t	*rpr;			/* RequiresPageRegion value */
1113 
1114 
1115  /*
1116   * This function determines what page size code to use, if any, for the
1117   * current media size, InputSlot, and ManualFeed selections.
1118   *
1119   * We use the PageSize code if:
1120   *
1121   * 1. A custom media size is selected.
1122   * 2. ManualFeed and InputSlot are not selected (or do not exist).
1123   * 3. ManualFeed is selected but is False and InputSlot is not selected or
1124   *    the selection has no code - the latter check done to support "auto" or
1125   *    "printer default" InputSlot options.
1126   *
1127   * We use the PageRegion code if:
1128   *
1129   * 4. RequiresPageRegion does not exist and the PPD contains cupsFilter
1130   *    keywords, indicating this is a CUPS-based driver.
1131   * 5. RequiresPageRegion exists for the selected InputSlot (or "All" for any
1132   *    InputSlot or ManualFeed selection) and is True.
1133   *
1134   * If none of the 5 conditions are true, no page size code is used and we
1135   * unmark any existing PageSize or PageRegion choices.
1136   */
1137 
1138   if ((size = ppdPageSize(ppd, NULL)) == NULL)
1139     return;
1140 
1141   manual_feed = ppdFindMarkedChoice(ppd, "ManualFeed");
1142   input_slot  = ppdFindMarkedChoice(ppd, "InputSlot");
1143 
1144   if (input_slot != NULL)
1145     rpr = ppdFindAttr(ppd, "RequiresPageRegion", input_slot->choice);
1146   else
1147     rpr = NULL;
1148 
1149   if (!rpr)
1150     rpr = ppdFindAttr(ppd, "RequiresPageRegion", "All");
1151 
1152   if (!_cups_strcasecmp(size->name, "Custom") ||
1153       (!manual_feed && !input_slot) ||
1154       (manual_feed && !_cups_strcasecmp(manual_feed->choice, "False") &&
1155        (!input_slot || (input_slot->code && !input_slot->code[0]))) ||
1156       (!rpr && ppd->num_filters > 0))
1157   {
1158    /*
1159     * Use PageSize code...
1160     */
1161 
1162     ppdMarkOption(ppd, "PageSize", size->name);
1163   }
1164   else if (rpr && rpr->value && !_cups_strcasecmp(rpr->value, "True"))
1165   {
1166    /*
1167     * Use PageRegion code...
1168     */
1169 
1170     ppdMarkOption(ppd, "PageRegion", size->name);
1171   }
1172   else
1173   {
1174    /*
1175     * Do not use PageSize or PageRegion code...
1176     */
1177 
1178     ppd_choice_t	*page;		/* PageSize/Region choice, if any */
1179 
1180     if ((page = ppdFindMarkedChoice(ppd, "PageSize")) != NULL)
1181     {
1182      /*
1183       * Unmark PageSize...
1184       */
1185 
1186       page->marked = 0;
1187       cupsArrayRemove(ppd->marked, page);
1188     }
1189 
1190     if ((page = ppdFindMarkedChoice(ppd, "PageRegion")) != NULL)
1191     {
1192      /*
1193       * Unmark PageRegion...
1194       */
1195 
1196       page->marked = 0;
1197       cupsArrayRemove(ppd->marked, page);
1198     }
1199   }
1200 }
1201