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1 /*
2  * PPD code emission routines for CUPS.
3  *
4  * Copyright 2007-2019 by Apple Inc.
5  * Copyright 1997-2007 by Easy Software Products, all rights reserved.
6  *
7  * Licensed under Apache License v2.0.  See the file "LICENSE" for more
8  * information.
9  *
10  * PostScript is a trademark of Adobe Systems, Inc.
11  */
12 
13 /*
14  * Include necessary headers...
15  */
16 
17 #include "cups-private.h"
18 #include "debug-internal.h"
19 #include "ppd.h"
20 #if defined(_WIN32) || defined(__EMX__)
21 #  include <io.h>
22 #else
23 #  include <unistd.h>
24 #endif /* _WIN32 || __EMX__ */
25 
26 
27 /*
28  * Local functions...
29  */
30 
31 static int	ppd_compare_cparams(ppd_cparam_t *a, ppd_cparam_t *b);
32 static void	ppd_handle_media(ppd_file_t *ppd);
33 
34 
35 /*
36  * Local globals...
37  */
38 
39 static const char ppd_custom_code[] =
40 		"pop pop pop\n"
41 		"<</PageSize[5 -2 roll]/ImagingBBox null>>setpagedevice\n";
42 
43 
44 /*
45  * 'ppdCollect()' - Collect all marked options that reside in the specified
46  *                  section.
47  *
48  * The choices array should be freed using @code free@ when you are
49  * finished with it.
50  */
51 
52 int					/* O - Number of options marked */
ppdCollect(ppd_file_t * ppd,ppd_section_t section,ppd_choice_t *** choices)53 ppdCollect(ppd_file_t    *ppd,		/* I - PPD file data */
54            ppd_section_t section,	/* I - Section to collect */
55            ppd_choice_t  ***choices)	/* O - Pointers to choices */
56 {
57   return (ppdCollect2(ppd, section, 0.0, choices));
58 }
59 
60 
61 /*
62  * 'ppdCollect2()' - Collect all marked options that reside in the
63  *                   specified section and minimum order.
64  *
65  * The choices array should be freed using @code free@ when you are
66  * finished with it.
67  *
68  * @since CUPS 1.2/macOS 10.5@
69  */
70 
71 int					/* O - Number of options marked */
ppdCollect2(ppd_file_t * ppd,ppd_section_t section,float min_order,ppd_choice_t *** choices)72 ppdCollect2(ppd_file_t    *ppd,		/* I - PPD file data */
73             ppd_section_t section,	/* I - Section to collect */
74 	    float         min_order,	/* I - Minimum OrderDependency value */
75             ppd_choice_t  ***choices)	/* O - Pointers to choices */
76 {
77   ppd_choice_t	*c;			/* Current choice */
78   ppd_section_t	csection;		/* Current section */
79   float		corder;			/* Current OrderDependency value */
80   int		count;			/* Number of choices collected */
81   ppd_choice_t	**collect;		/* Collected choices */
82   float		*orders;		/* Collected order values */
83 
84 
85   DEBUG_printf(("ppdCollect2(ppd=%p, section=%d, min_order=%f, choices=%p)",
86                 ppd, section, min_order, choices));
87 
88   if (!ppd || !choices)
89   {
90     if (choices)
91       *choices = NULL;
92 
93     return (0);
94   }
95 
96  /*
97   * Allocate memory for up to N selected choices...
98   */
99 
100   count = 0;
101   if ((collect = calloc(sizeof(ppd_choice_t *),
102                         (size_t)cupsArrayCount(ppd->marked))) == NULL)
103   {
104     *choices = NULL;
105     return (0);
106   }
107 
108   if ((orders = calloc(sizeof(float), (size_t)cupsArrayCount(ppd->marked))) == NULL)
109   {
110     *choices = NULL;
111     free(collect);
112     return (0);
113   }
114 
115  /*
116   * Loop through all options and add choices as needed...
117   */
118 
119   for (c = (ppd_choice_t *)cupsArrayFirst(ppd->marked);
120        c;
121        c = (ppd_choice_t *)cupsArrayNext(ppd->marked))
122   {
123     csection = c->option->section;
124     corder   = c->option->order;
125 
126     if (!strcmp(c->choice, "Custom"))
127     {
128       ppd_attr_t	*attr;		/* NonUIOrderDependency value */
129       float		aorder;		/* Order value */
130       char		asection[17],	/* Section name */
131 			amain[PPD_MAX_NAME + 1],
132 			aoption[PPD_MAX_NAME];
133 					/* *CustomFoo and True */
134 
135 
136       for (attr = ppdFindAttr(ppd, "NonUIOrderDependency", NULL);
137            attr;
138 	   attr = ppdFindNextAttr(ppd, "NonUIOrderDependency", NULL))
139         if (attr->value &&
140 	    sscanf(attr->value, "%f%16s%41s%40s", &aorder, asection, amain,
141 	           aoption) == 4 &&
142 	    !strncmp(amain, "*Custom", 7) &&
143 	    !strcmp(amain + 7, c->option->keyword) && !strcmp(aoption, "True"))
144 	{
145 	 /*
146 	  * Use this NonUIOrderDependency...
147 	  */
148 
149           corder = aorder;
150 
151 	  if (!strcmp(asection, "DocumentSetup"))
152 	    csection = PPD_ORDER_DOCUMENT;
153 	  else if (!strcmp(asection, "ExitServer"))
154 	    csection = PPD_ORDER_EXIT;
155 	  else if (!strcmp(asection, "JCLSetup"))
156 	    csection = PPD_ORDER_JCL;
157 	  else if (!strcmp(asection, "PageSetup"))
158 	    csection = PPD_ORDER_PAGE;
159 	  else if (!strcmp(asection, "Prolog"))
160 	    csection = PPD_ORDER_PROLOG;
161 	  else
162 	    csection = PPD_ORDER_ANY;
163 
164 	  break;
165 	}
166     }
167 
168     if (csection == section && corder >= min_order)
169     {
170       collect[count] = c;
171       orders[count]  = corder;
172       count ++;
173     }
174   }
175 
176  /*
177   * If we have more than 1 marked choice, sort them...
178   */
179 
180   if (count > 1)
181   {
182     int i, j;				/* Looping vars */
183 
184     for (i = 0; i < (count - 1); i ++)
185       for (j = i + 1; j < count; j ++)
186         if (orders[i] > orders[j])
187 	{
188 	  c          = collect[i];
189 	  corder     = orders[i];
190 	  collect[i] = collect[j];
191 	  orders[i]  = orders[j];
192 	  collect[j] = c;
193 	  orders[j]  = corder;
194 	}
195   }
196 
197   free(orders);
198 
199   DEBUG_printf(("2ppdCollect2: %d marked choices...", count));
200 
201  /*
202   * Return the array and number of choices; if 0, free the array since
203   * it isn't needed.
204   */
205 
206   if (count > 0)
207   {
208     *choices = collect;
209     return (count);
210   }
211   else
212   {
213     *choices = NULL;
214     free(collect);
215     return (0);
216   }
217 }
218 
219 
220 /*
221  * 'ppdEmit()' - Emit code for marked options to a file.
222  */
223 
224 int					/* O - 0 on success, -1 on failure */
ppdEmit(ppd_file_t * ppd,FILE * fp,ppd_section_t section)225 ppdEmit(ppd_file_t    *ppd,		/* I - PPD file record */
226         FILE          *fp,		/* I - File to write to */
227         ppd_section_t section)		/* I - Section to write */
228 {
229   return (ppdEmitAfterOrder(ppd, fp, section, 0, 0.0));
230 }
231 
232 
233 /*
234  * 'ppdEmitAfterOrder()' - Emit a subset of the code for marked options to a file.
235  *
236  * When "limit" is non-zero, this function only emits options whose
237  * OrderDependency value is greater than or equal to "min_order".
238  *
239  * When "limit" is zero, this function is identical to ppdEmit().
240  *
241  * @since CUPS 1.2/macOS 10.5@
242  */
243 
244 int					/* O - 0 on success, -1 on failure */
ppdEmitAfterOrder(ppd_file_t * ppd,FILE * fp,ppd_section_t section,int limit,float min_order)245 ppdEmitAfterOrder(
246     ppd_file_t    *ppd,			/* I - PPD file record */
247     FILE          *fp,			/* I - File to write to */
248     ppd_section_t section,		/* I - Section to write */
249     int		  limit,		/* I - Non-zero to use min_order */
250     float         min_order)		/* I - Lowest OrderDependency */
251 {
252   char	*buffer;			/* Option code */
253   int	status;				/* Return status */
254 
255 
256  /*
257   * Range check input...
258   */
259 
260   if (!ppd || !fp)
261     return (-1);
262 
263  /*
264   * Get the string...
265   */
266 
267   buffer = ppdEmitString(ppd, section, limit ? min_order : 0.0f);
268 
269  /*
270   * Write it as needed and return...
271   */
272 
273   if (buffer)
274   {
275     status = fputs(buffer, fp) < 0 ? -1 : 0;
276 
277     free(buffer);
278   }
279   else
280     status = 0;
281 
282   return (status);
283 }
284 
285 
286 /*
287  * 'ppdEmitFd()' - Emit code for marked options to a file.
288  */
289 
290 int					/* O - 0 on success, -1 on failure */
ppdEmitFd(ppd_file_t * ppd,int fd,ppd_section_t section)291 ppdEmitFd(ppd_file_t    *ppd,		/* I - PPD file record */
292           int           fd,		/* I - File to write to */
293           ppd_section_t section)	/* I - Section to write */
294 {
295   char		*buffer,		/* Option code */
296 		*bufptr;		/* Pointer into code */
297   size_t	buflength;		/* Length of option code */
298   ssize_t	bytes;			/* Bytes written */
299   int		status;			/* Return status */
300 
301 
302  /*
303   * Range check input...
304   */
305 
306   if (!ppd || fd < 0)
307     return (-1);
308 
309  /*
310   * Get the string...
311   */
312 
313   buffer = ppdEmitString(ppd, section, 0.0);
314 
315  /*
316   * Write it as needed and return...
317   */
318 
319   if (buffer)
320   {
321     buflength = strlen(buffer);
322     bufptr    = buffer;
323     bytes     = 0;
324 
325     while (buflength > 0)
326     {
327 #ifdef _WIN32
328       if ((bytes = (ssize_t)write(fd, bufptr, (unsigned)buflength)) < 0)
329 #else
330       if ((bytes = write(fd, bufptr, buflength)) < 0)
331 #endif /* _WIN32 */
332       {
333         if (errno == EAGAIN || errno == EINTR)
334 	  continue;
335 
336 	break;
337       }
338 
339       buflength -= (size_t)bytes;
340       bufptr    += bytes;
341     }
342 
343     status = bytes < 0 ? -1 : 0;
344 
345     free(buffer);
346   }
347   else
348     status = 0;
349 
350   return (status);
351 }
352 
353 
354 /*
355  * 'ppdEmitJCL()' - Emit code for JCL options to a file.
356  */
357 
358 int					/* O - 0 on success, -1 on failure */
ppdEmitJCL(ppd_file_t * ppd,FILE * fp,int job_id,const char * user,const char * title)359 ppdEmitJCL(ppd_file_t *ppd,		/* I - PPD file record */
360            FILE       *fp,		/* I - File to write to */
361            int        job_id,		/* I - Job ID */
362 	   const char *user,		/* I - Username */
363 	   const char *title)		/* I - Title */
364 {
365   char		*ptr;			/* Pointer into JCL string */
366   char		temp[65],		/* Local title string */
367 		displaymsg[33];		/* Local display string */
368 
369 
370  /*
371   * Range check the input...
372   */
373 
374   if (!ppd || !ppd->jcl_begin || !ppd->jcl_ps)
375     return (0);
376 
377  /*
378   * See if the printer supports HP PJL...
379   */
380 
381   if (!strncmp(ppd->jcl_begin, "\033%-12345X@", 10))
382   {
383    /*
384     * This printer uses HP PJL commands for output; filter the output
385     * so that we only have a single "@PJL JOB" command in the header...
386     *
387     * To avoid bugs in the PJL implementation of certain vendors' products
388     * (Xerox in particular), we add a dummy "@PJL" command at the beginning
389     * of the PJL commands to initialize PJL processing.
390     */
391 
392     ppd_attr_t	*charset;		/* PJL charset */
393     ppd_attr_t	*display;		/* PJL display command */
394 
395 
396     if ((charset = ppdFindAttr(ppd, "cupsPJLCharset", NULL)) != NULL)
397     {
398       if (!charset->value || _cups_strcasecmp(charset->value, "UTF-8"))
399         charset = NULL;
400     }
401 
402     if ((display = ppdFindAttr(ppd, "cupsPJLDisplay", NULL)) != NULL)
403     {
404       if (!display->value)
405         display = NULL;
406     }
407 
408     fputs("\033%-12345X@PJL\n", fp);
409     for (ptr = ppd->jcl_begin + 9; *ptr;)
410       if (!strncmp(ptr, "@PJL JOB", 8))
411       {
412        /*
413         * Skip job command...
414 	*/
415 
416         for (;*ptr; ptr ++)
417 	  if (*ptr == '\n')
418 	    break;
419 
420 	if (*ptr)
421 	  ptr ++;
422       }
423       else
424       {
425        /*
426         * Copy line...
427 	*/
428 
429         for (;*ptr; ptr ++)
430 	{
431 	  putc(*ptr, fp);
432 	  if (*ptr == '\n')
433 	    break;
434 	}
435 
436 	if (*ptr)
437 	  ptr ++;
438       }
439 
440    /*
441     * Clean up the job title...
442     */
443 
444     if (!title)
445       title = "Unknown";
446 
447     if ((ptr = strrchr(title, '/')) != NULL)
448     {
449      /*
450       * Only show basename of file path...
451       */
452 
453       title = ptr + 1;
454     }
455 
456     if (!strncmp(title, "smbprn.", 7))
457     {
458      /*
459       * Skip leading smbprn.######## from Samba jobs...
460       */
461 
462       for (title += 7; *title && isdigit(*title & 255); title ++);
463       while (_cups_isspace(*title))
464         title ++;
465 
466       if ((ptr = strstr(title, " - ")) != NULL)
467       {
468        /*
469 	* Skip application name in "Some Application - Title of job"...
470 	*/
471 
472 	title = ptr + 3;
473       }
474     }
475 
476    /*
477     * Replace double quotes with single quotes and UTF-8 characters with
478     * question marks so that the title does not cause a PJL syntax error.
479     */
480 
481     strlcpy(temp, title, sizeof(temp));
482 
483     for (ptr = temp; *ptr; ptr ++)
484       if (*ptr == '\"')
485         *ptr = '\'';
486       else if (!charset && (*ptr & 128))
487         *ptr = '?';
488 
489    /*
490     * CUPS STR #3125: Long PJL JOB NAME causes problems with some printers
491     *
492     * Generate the display message, truncating at 32 characters + nul to avoid
493     * issues with some printer's PJL implementations...
494     */
495 
496     if (!user)
497       user = "anonymous";
498 
499     snprintf(displaymsg, sizeof(displaymsg), "%d %s %s", job_id, user, temp);
500 
501    /*
502     * Send PJL JOB and PJL RDYMSG commands before we enter PostScript mode...
503     */
504 
505     if (display && strcmp(display->value, "job"))
506       fprintf(fp, "@PJL JOB NAME = \"%s\"\n", temp);
507     else if (display && !strcmp(display->value, "rdymsg"))
508       fprintf(fp, "@PJL RDYMSG DISPLAY = \"%s\"\n", displaymsg);
509     else
510       fprintf(fp, "@PJL JOB NAME = \"%s\" DISPLAY = \"%s\"\n", temp,
511 	      displaymsg);
512 
513    /*
514     * Replace double quotes with single quotes and UTF-8 characters with
515     * question marks so that the user does not cause a PJL syntax error.
516     */
517 
518     strlcpy(temp, user, sizeof(temp));
519 
520     for (ptr = temp; *ptr; ptr ++)
521       if (*ptr == '\"')
522         *ptr = '\'';
523       else if (!charset && (*ptr & 128))
524         *ptr = '?';
525 
526     fprintf(fp, "@PJL SET USERNAME = \"%s\"\n", temp);
527   }
528   else
529     fputs(ppd->jcl_begin, fp);
530 
531   ppdEmit(ppd, fp, PPD_ORDER_JCL);
532   fputs(ppd->jcl_ps, fp);
533 
534   return (0);
535 }
536 
537 
538 /*
539  * 'ppdEmitJCLEnd()' - Emit JCLEnd code to a file.
540  *
541  * @since CUPS 1.2/macOS 10.5@
542  */
543 
544 int					/* O - 0 on success, -1 on failure */
ppdEmitJCLEnd(ppd_file_t * ppd,FILE * fp)545 ppdEmitJCLEnd(ppd_file_t *ppd,		/* I - PPD file record */
546               FILE       *fp)		/* I - File to write to */
547 {
548  /*
549   * Range check the input...
550   */
551 
552   if (!ppd)
553     return (0);
554 
555   if (!ppd->jcl_end)
556   {
557     if (ppd->num_filters == 0)
558       putc(0x04, fp);
559 
560     return (0);
561   }
562 
563  /*
564   * See if the printer supports HP PJL...
565   */
566 
567   if (!strncmp(ppd->jcl_end, "\033%-12345X@", 10))
568   {
569    /*
570     * This printer uses HP PJL commands for output; filter the output
571     * so that we only have a single "@PJL JOB" command in the header...
572     *
573     * To avoid bugs in the PJL implementation of certain vendors' products
574     * (Xerox in particular), we add a dummy "@PJL" command at the beginning
575     * of the PJL commands to initialize PJL processing.
576     */
577 
578     fputs("\033%-12345X@PJL\n", fp);
579     fputs("@PJL RDYMSG DISPLAY = \"\"\n", fp);
580     fputs(ppd->jcl_end + 9, fp);
581   }
582   else
583     fputs(ppd->jcl_end, fp);
584 
585   return (0);
586 }
587 
588 
589 /*
590  * 'ppdEmitString()' - Get a string containing the code for marked options.
591  *
592  * When "min_order" is greater than zero, this function only includes options
593  * whose OrderDependency value is greater than or equal to "min_order".
594  * Otherwise, all options in the specified section are included in the
595  * returned string.
596  *
597  * The return string is allocated on the heap and should be freed using
598  * @code free@ when you are done with it.
599  *
600  * @since CUPS 1.2/macOS 10.5@
601  */
602 
603 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)604 ppdEmitString(ppd_file_t    *ppd,	/* I - PPD file record */
605               ppd_section_t section,	/* I - Section to write */
606 	      float         min_order)	/* I - Lowest OrderDependency */
607 {
608   int		i, j,			/* Looping vars */
609 		count;			/* Number of choices */
610   ppd_choice_t	**choices;		/* Choices */
611   ppd_size_t	*size;			/* Custom page size */
612   ppd_coption_t	*coption;		/* Custom option */
613   ppd_cparam_t	*cparam;		/* Custom parameter */
614   size_t	bufsize;		/* Size of string buffer needed */
615   char		*buffer,		/* String buffer */
616 		*bufptr,		/* Pointer into buffer */
617 		*bufend;		/* End of buffer */
618   struct lconv	*loc;			/* Locale data */
619 
620 
621   DEBUG_printf(("ppdEmitString(ppd=%p, section=%d, min_order=%f)",
622                 ppd, section, min_order));
623 
624  /*
625   * Range check input...
626   */
627 
628   if (!ppd)
629     return (NULL);
630 
631  /*
632   * Use PageSize or PageRegion as required...
633   */
634 
635   ppd_handle_media(ppd);
636 
637  /*
638   * Collect the options we need to emit...
639   */
640 
641   if ((count = ppdCollect2(ppd, section, min_order, &choices)) == 0)
642     return (NULL);
643 
644  /*
645   * Count the number of bytes that are required to hold all of the
646   * option code...
647   */
648 
649   for (i = 0, bufsize = 1; i < count; i ++)
650   {
651     if (section == PPD_ORDER_JCL)
652     {
653       if (!_cups_strcasecmp(choices[i]->choice, "Custom") &&
654 	  (coption = ppdFindCustomOption(ppd, choices[i]->option->keyword))
655 	      != NULL)
656       {
657        /*
658         * Add space to account for custom parameter substitution...
659 	*/
660 
661         for (cparam = (ppd_cparam_t *)cupsArrayFirst(coption->params);
662 	     cparam;
663 	     cparam = (ppd_cparam_t *)cupsArrayNext(coption->params))
664 	{
665           switch (cparam->type)
666 	  {
667 	    case PPD_CUSTOM_UNKNOWN :
668 	        break;
669 
670 	    case PPD_CUSTOM_CURVE :
671 	    case PPD_CUSTOM_INVCURVE :
672 	    case PPD_CUSTOM_POINTS :
673 	    case PPD_CUSTOM_REAL :
674 	    case PPD_CUSTOM_INT :
675 	        bufsize += 10;
676 	        break;
677 
678 	    case PPD_CUSTOM_PASSCODE :
679 	    case PPD_CUSTOM_PASSWORD :
680 	    case PPD_CUSTOM_STRING :
681 	        if (cparam->current.custom_string)
682 		  bufsize += strlen(cparam->current.custom_string);
683 	        break;
684           }
685 	}
686       }
687     }
688     else if (section != PPD_ORDER_EXIT)
689     {
690       bufsize += 3;			/* [{\n */
691 
692       if ((!_cups_strcasecmp(choices[i]->option->keyword, "PageSize") ||
693            !_cups_strcasecmp(choices[i]->option->keyword, "PageRegion")) &&
694           !_cups_strcasecmp(choices[i]->choice, "Custom"))
695       {
696         DEBUG_puts("2ppdEmitString: Custom size set!");
697 
698         bufsize += 37;			/* %%BeginFeature: *CustomPageSize True\n */
699         bufsize += 50;			/* Five 9-digit numbers + newline */
700       }
701       else if (!_cups_strcasecmp(choices[i]->choice, "Custom") &&
702                (coption = ppdFindCustomOption(ppd,
703 	                                      choices[i]->option->keyword))
704 	           != NULL)
705       {
706         bufsize += 23 + strlen(choices[i]->option->keyword) + 6;
707 					/* %%BeginFeature: *Customkeyword True\n */
708 
709 
710         for (cparam = (ppd_cparam_t *)cupsArrayFirst(coption->params);
711 	     cparam;
712 	     cparam = (ppd_cparam_t *)cupsArrayNext(coption->params))
713 	{
714           switch (cparam->type)
715 	  {
716 	    case PPD_CUSTOM_UNKNOWN :
717 	        break;
718 
719 	    case PPD_CUSTOM_CURVE :
720 	    case PPD_CUSTOM_INVCURVE :
721 	    case PPD_CUSTOM_POINTS :
722 	    case PPD_CUSTOM_REAL :
723 	    case PPD_CUSTOM_INT :
724 	        bufsize += 10;
725 	        break;
726 
727 	    case PPD_CUSTOM_PASSCODE :
728 	    case PPD_CUSTOM_PASSWORD :
729 	    case PPD_CUSTOM_STRING :
730 		bufsize += 3;
731 	        if (cparam->current.custom_string)
732 		  bufsize += 4 * strlen(cparam->current.custom_string);
733 	        break;
734           }
735 	}
736       }
737       else
738         bufsize += 17 + strlen(choices[i]->option->keyword) + 1 +
739 	           strlen(choices[i]->choice) + 1;
740 					/* %%BeginFeature: *keyword choice\n */
741 
742       bufsize += 13;			/* %%EndFeature\n */
743       bufsize += 22;			/* } stopped cleartomark\n */
744     }
745 
746     if (choices[i]->code)
747       bufsize += strlen(choices[i]->code) + 1;
748     else
749       bufsize += strlen(ppd_custom_code);
750   }
751 
752  /*
753   * Allocate memory...
754   */
755 
756   DEBUG_printf(("2ppdEmitString: Allocating %d bytes for string...",
757                 (int)bufsize));
758 
759   if ((buffer = calloc(1, bufsize)) == NULL)
760   {
761     free(choices);
762     return (NULL);
763   }
764 
765   bufend = buffer + bufsize - 1;
766   loc    = localeconv();
767 
768  /*
769   * Copy the option code to the buffer...
770   */
771 
772   for (i = 0, bufptr = buffer; i < count; i ++, bufptr += strlen(bufptr))
773     if (section == PPD_ORDER_JCL)
774     {
775       if (!_cups_strcasecmp(choices[i]->choice, "Custom") &&
776 	  choices[i]->code &&
777           (coption = ppdFindCustomOption(ppd, choices[i]->option->keyword))
778 	      != NULL)
779       {
780        /*
781         * Handle substitutions in custom JCL options...
782 	*/
783 
784 	char	*cptr;			/* Pointer into code */
785 	int	pnum;			/* Parameter number */
786 
787 
788         for (cptr = choices[i]->code; *cptr && bufptr < bufend;)
789 	{
790 	  if (*cptr == '\\')
791 	  {
792 	    cptr ++;
793 
794 	    if (isdigit(*cptr & 255))
795 	    {
796 	     /*
797 	      * Substitute parameter...
798 	      */
799 
800               pnum = *cptr++ - '0';
801 	      while (isdigit(*cptr & 255))
802 	        pnum = pnum * 10 + *cptr++ - '0';
803 
804               for (cparam = (ppd_cparam_t *)cupsArrayFirst(coption->params);
805 	           cparam;
806 		   cparam = (ppd_cparam_t *)cupsArrayNext(coption->params))
807 		if (cparam->order == pnum)
808 		  break;
809 
810               if (cparam)
811 	      {
812 	        switch (cparam->type)
813 		{
814 		  case PPD_CUSTOM_UNKNOWN :
815 		      break;
816 
817 		  case PPD_CUSTOM_CURVE :
818 		  case PPD_CUSTOM_INVCURVE :
819 		  case PPD_CUSTOM_POINTS :
820 		  case PPD_CUSTOM_REAL :
821 		      bufptr = _cupsStrFormatd(bufptr, bufend,
822 					       cparam->current.custom_real,
823 					       loc);
824 		      break;
825 
826 		  case PPD_CUSTOM_INT :
827 		      snprintf(bufptr, (size_t)(bufend - bufptr), "%d", cparam->current.custom_int);
828 		      bufptr += strlen(bufptr);
829 		      break;
830 
831 		  case PPD_CUSTOM_PASSCODE :
832 		  case PPD_CUSTOM_PASSWORD :
833 		  case PPD_CUSTOM_STRING :
834 		      if (cparam->current.custom_string)
835 		      {
836 			strlcpy(bufptr, cparam->current.custom_string, (size_t)(bufend - bufptr));
837 			bufptr += strlen(bufptr);
838 		      }
839 		      break;
840 		}
841 	      }
842 	    }
843 	    else if (*cptr)
844 	      *bufptr++ = *cptr++;
845 	  }
846 	  else
847 	    *bufptr++ = *cptr++;
848 	}
849       }
850       else if (choices[i]->code)
851       {
852        /*
853         * Otherwise just copy the option code directly...
854 	*/
855 
856         strlcpy(bufptr, choices[i]->code, (size_t)(bufend - bufptr + 1));
857         bufptr += strlen(bufptr);
858       }
859     }
860     else if (section != PPD_ORDER_EXIT)
861     {
862      /*
863       * Add wrapper commands to prevent printer errors for unsupported
864       * options...
865       */
866 
867       strlcpy(bufptr, "[{\n", (size_t)(bufend - bufptr + 1));
868       bufptr += 3;
869 
870      /*
871       * Send DSC comments with option...
872       */
873 
874       DEBUG_printf(("2ppdEmitString: Adding code for %s=%s...",
875 		    choices[i]->option->keyword, choices[i]->choice));
876 
877       if ((!_cups_strcasecmp(choices[i]->option->keyword, "PageSize") ||
878            !_cups_strcasecmp(choices[i]->option->keyword, "PageRegion")) &&
879           !_cups_strcasecmp(choices[i]->choice, "Custom"))
880       {
881        /*
882         * Variable size; write out standard size options, using the
883 	* parameter positions defined in the PPD file...
884 	*/
885 
886         ppd_attr_t	*attr;		/* PPD attribute */
887 	int		pos,		/* Position of custom value */
888 			orientation;	/* Orientation to use */
889 	float		values[5];	/* Values for custom command */
890 
891 
892         strlcpy(bufptr, "%%BeginFeature: *CustomPageSize True\n", (size_t)(bufend - bufptr + 1));
893         bufptr += 37;
894 
895         size = ppdPageSize(ppd, "Custom");
896 
897         memset(values, 0, sizeof(values));
898 
899 	if ((attr = ppdFindAttr(ppd, "ParamCustomPageSize", "Width")) != NULL)
900 	{
901 	  pos = atoi(attr->value) - 1;
902 
903           if (pos < 0 || pos > 4)
904 	    pos = 0;
905 	}
906 	else
907 	  pos = 0;
908 
909 	values[pos] = size->width;
910 
911 	if ((attr = ppdFindAttr(ppd, "ParamCustomPageSize", "Height")) != NULL)
912 	{
913 	  pos = atoi(attr->value) - 1;
914 
915           if (pos < 0 || pos > 4)
916 	    pos = 1;
917 	}
918 	else
919 	  pos = 1;
920 
921 	values[pos] = size->length;
922 
923        /*
924         * According to the Adobe PPD specification, an orientation of 1
925 	* will produce a print that comes out upside-down with the X
926 	* axis perpendicular to the direction of feed, which is exactly
927 	* what we want to be consistent with non-PS printers.
928 	*
929 	* We could also use an orientation of 3 to produce output that
930 	* comes out rightside-up (this is the default for many large format
931 	* printer PPDs), however for consistency we will stick with the
932 	* value 1.
933 	*
934 	* If we wanted to get fancy, we could use orientations of 0 or
935 	* 2 and swap the width and length, however we don't want to get
936 	* fancy, we just want it to work consistently.
937 	*
938 	* The orientation value is range limited by the Orientation
939 	* parameter definition, so certain non-PS printer drivers that
940 	* only support an Orientation of 0 will get the value 0 as
941 	* expected.
942 	*/
943 
944         orientation = 1;
945 
946 	if ((attr = ppdFindAttr(ppd, "ParamCustomPageSize",
947 	                        "Orientation")) != NULL)
948 	{
949 	  int min_orient, max_orient;	/* Minimum and maximum orientations */
950 
951 
952           if (sscanf(attr->value, "%d%*s%d%d", &pos, &min_orient,
953 	             &max_orient) != 3)
954 	    pos = 4;
955 	  else
956 	  {
957 	    pos --;
958 
959             if (pos < 0 || pos > 4)
960 	      pos = 4;
961 
962             if (orientation > max_orient)
963 	      orientation = max_orient;
964 	    else if (orientation < min_orient)
965 	      orientation = min_orient;
966 	  }
967 	}
968 	else
969 	  pos = 4;
970 
971 	values[pos] = (float)orientation;
972 
973         for (pos = 0; pos < 5; pos ++)
974 	{
975 	  bufptr    = _cupsStrFormatd(bufptr, bufend, values[pos], loc);
976 	  *bufptr++ = '\n';
977         }
978 
979 	if (!choices[i]->code)
980 	{
981 	 /*
982 	  * This can happen with certain buggy PPD files that don't include
983 	  * a CustomPageSize command sequence...  We just use a generic
984 	  * Level 2 command sequence...
985 	  */
986 
987 	  strlcpy(bufptr, ppd_custom_code, (size_t)(bufend - bufptr + 1));
988           bufptr += strlen(bufptr);
989 	}
990       }
991       else if (!_cups_strcasecmp(choices[i]->choice, "Custom") &&
992                (coption = ppdFindCustomOption(ppd, choices[i]->option->keyword))
993 	           != NULL)
994       {
995        /*
996         * Custom option...
997 	*/
998 
999         const char	*s;		/* Pointer into string value */
1000         cups_array_t	*params;	/* Parameters in the correct output order */
1001 
1002 
1003         params = cupsArrayNew((cups_array_func_t)ppd_compare_cparams, NULL);
1004 
1005         for (cparam = (ppd_cparam_t *)cupsArrayFirst(coption->params);
1006 	     cparam;
1007 	     cparam = (ppd_cparam_t *)cupsArrayNext(coption->params))
1008           cupsArrayAdd(params, cparam);
1009 
1010         snprintf(bufptr, (size_t)(bufend - bufptr + 1), "%%%%BeginFeature: *Custom%s True\n", coption->keyword);
1011         bufptr += strlen(bufptr);
1012 
1013         for (cparam = (ppd_cparam_t *)cupsArrayFirst(params);
1014 	     cparam;
1015 	     cparam = (ppd_cparam_t *)cupsArrayNext(params))
1016 	{
1017           switch (cparam->type)
1018 	  {
1019 	    case PPD_CUSTOM_UNKNOWN :
1020 	        break;
1021 
1022 	    case PPD_CUSTOM_CURVE :
1023 	    case PPD_CUSTOM_INVCURVE :
1024 	    case PPD_CUSTOM_POINTS :
1025 	    case PPD_CUSTOM_REAL :
1026 	        bufptr    = _cupsStrFormatd(bufptr, bufend,
1027 		                            cparam->current.custom_real, loc);
1028                 *bufptr++ = '\n';
1029 	        break;
1030 
1031 	    case PPD_CUSTOM_INT :
1032 	        snprintf(bufptr, (size_t)(bufend - bufptr + 1), "%d\n", cparam->current.custom_int);
1033 		bufptr += strlen(bufptr);
1034 	        break;
1035 
1036 	    case PPD_CUSTOM_PASSCODE :
1037 	    case PPD_CUSTOM_PASSWORD :
1038 	    case PPD_CUSTOM_STRING :
1039 	        *bufptr++ = '(';
1040 
1041 		if (cparam->current.custom_string)
1042 		{
1043 		  for (s = cparam->current.custom_string; *s; s ++)
1044 		  {
1045 		    if (*s < ' ' || *s == '(' || *s == ')' || *s >= 127)
1046 		    {
1047 		      snprintf(bufptr, (size_t)(bufend - bufptr + 1), "\\%03o", *s & 255);
1048 		      bufptr += strlen(bufptr);
1049 		    }
1050 		    else
1051 		      *bufptr++ = *s;
1052 		  }
1053 		}
1054 
1055 	        *bufptr++ = ')';
1056 		*bufptr++ = '\n';
1057 	        break;
1058           }
1059 	}
1060 
1061 	cupsArrayDelete(params);
1062       }
1063       else
1064       {
1065         snprintf(bufptr, (size_t)(bufend - bufptr + 1), "%%%%BeginFeature: *%s %s\n", choices[i]->option->keyword, choices[i]->choice);
1066 	bufptr += strlen(bufptr);
1067       }
1068 
1069       if (choices[i]->code && choices[i]->code[0])
1070       {
1071         j = (int)strlen(choices[i]->code);
1072 	memcpy(bufptr, choices[i]->code, (size_t)j);
1073 	bufptr += j;
1074 
1075 	if (choices[i]->code[j - 1] != '\n')
1076 	  *bufptr++ = '\n';
1077       }
1078 
1079       strlcpy(bufptr, "%%EndFeature\n"
1080 		      "} stopped cleartomark\n", (size_t)(bufend - bufptr + 1));
1081       bufptr += strlen(bufptr);
1082 
1083       DEBUG_printf(("2ppdEmitString: Offset in string is %d...",
1084                     (int)(bufptr - buffer)));
1085     }
1086     else if (choices[i]->code)
1087     {
1088       strlcpy(bufptr, choices[i]->code, (size_t)(bufend - bufptr + 1));
1089       bufptr += strlen(bufptr);
1090     }
1091 
1092  /*
1093   * Nul-terminate, free, and return...
1094   */
1095 
1096   *bufptr = '\0';
1097 
1098   free(choices);
1099 
1100   return (buffer);
1101 }
1102 
1103 
1104 /*
1105  * 'ppd_compare_cparams()' - Compare the order of two custom parameters.
1106  */
1107 
1108 static int				/* O - Result of comparison */
ppd_compare_cparams(ppd_cparam_t * a,ppd_cparam_t * b)1109 ppd_compare_cparams(ppd_cparam_t *a,	/* I - First parameter */
1110                     ppd_cparam_t *b)	/* I - Second parameter */
1111 {
1112   return (a->order - b->order);
1113 }
1114 
1115 
1116 /*
1117  * 'ppd_handle_media()' - Handle media selection...
1118  */
1119 
1120 static void
ppd_handle_media(ppd_file_t * ppd)1121 ppd_handle_media(ppd_file_t *ppd)	/* I - PPD file */
1122 {
1123   ppd_choice_t	*manual_feed,		/* ManualFeed choice, if any */
1124 		*input_slot;		/* InputSlot choice, if any */
1125   ppd_size_t	*size;			/* Current media size */
1126   ppd_attr_t	*rpr;			/* RequiresPageRegion value */
1127 
1128 
1129  /*
1130   * This function determines what page size code to use, if any, for the
1131   * current media size, InputSlot, and ManualFeed selections.
1132   *
1133   * We use the PageSize code if:
1134   *
1135   * 1. A custom media size is selected.
1136   * 2. ManualFeed and InputSlot are not selected (or do not exist).
1137   * 3. ManualFeed is selected but is False and InputSlot is not selected or
1138   *    the selection has no code - the latter check done to support "auto" or
1139   *    "printer default" InputSlot options.
1140   *
1141   * We use the PageRegion code if:
1142   *
1143   * 4. RequiresPageRegion does not exist and the PPD contains cupsFilter
1144   *    keywords, indicating this is a CUPS-based driver.
1145   * 5. RequiresPageRegion exists for the selected InputSlot (or "All" for any
1146   *    InputSlot or ManualFeed selection) and is True.
1147   *
1148   * If none of the 5 conditions are true, no page size code is used and we
1149   * unmark any existing PageSize or PageRegion choices.
1150   */
1151 
1152   if ((size = ppdPageSize(ppd, NULL)) == NULL)
1153     return;
1154 
1155   manual_feed = ppdFindMarkedChoice(ppd, "ManualFeed");
1156   input_slot  = ppdFindMarkedChoice(ppd, "InputSlot");
1157 
1158   if (input_slot != NULL)
1159     rpr = ppdFindAttr(ppd, "RequiresPageRegion", input_slot->choice);
1160   else
1161     rpr = NULL;
1162 
1163   if (!rpr)
1164     rpr = ppdFindAttr(ppd, "RequiresPageRegion", "All");
1165 
1166   if (!_cups_strcasecmp(size->name, "Custom") ||
1167       (!manual_feed && !input_slot) ||
1168       (manual_feed && !_cups_strcasecmp(manual_feed->choice, "False") &&
1169        (!input_slot || (input_slot->code && !input_slot->code[0]))) ||
1170       (!rpr && ppd->num_filters > 0))
1171   {
1172    /*
1173     * Use PageSize code...
1174     */
1175 
1176     ppdMarkOption(ppd, "PageSize", size->name);
1177   }
1178   else if (rpr && rpr->value && !_cups_strcasecmp(rpr->value, "True"))
1179   {
1180    /*
1181     * Use PageRegion code...
1182     */
1183 
1184     ppdMarkOption(ppd, "PageRegion", size->name);
1185   }
1186   else
1187   {
1188    /*
1189     * Do not use PageSize or PageRegion code...
1190     */
1191 
1192     ppd_choice_t	*page;		/* PageSize/Region choice, if any */
1193 
1194     if ((page = ppdFindMarkedChoice(ppd, "PageSize")) != NULL)
1195     {
1196      /*
1197       * Unmark PageSize...
1198       */
1199 
1200       page->marked = 0;
1201       cupsArrayRemove(ppd->marked, page);
1202     }
1203 
1204     if ((page = ppdFindMarkedChoice(ppd, "PageRegion")) != NULL)
1205     {
1206      /*
1207       * Unmark PageRegion...
1208       */
1209 
1210       page->marked = 0;
1211       cupsArrayRemove(ppd->marked, page);
1212     }
1213   }
1214 }
1215