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      1 /*
      2  * PPD constraint test program for CUPS.
      3  *
      4  * Copyright 2008-2012 by Apple Inc.
      5  *
      6  * These coded instructions, statements, and computer programs are the
      7  * property of Apple Inc. and are protected by Federal copyright
      8  * law.  Distribution and use rights are outlined in the file "LICENSE.txt"
      9  * which should have been included with this file.  If this file is
     10  * missing or damaged, see the license at "http://www.cups.org/".
     11  *
     12  * This file is subject to the Apple OS-Developed Software exception.
     13  */
     14 
     15 /*
     16  * Include necessary headers...
     17  */
     18 
     19 #include "cups.h"
     20 #include "ppd.h"
     21 #include "string-private.h"
     22 
     23 
     24 /*
     25  * 'main()' - Main entry.
     26  */
     27 
     28 int					/* O - Exit status */
     29 main(int  argc,				/* I - Number of command-line arguments */
     30      char *argv[])			/* I - Command-line arguments */
     31 {
     32   int		i;			/* Looping var */
     33   ppd_file_t	*ppd;			/* PPD file loaded from disk */
     34   char		line[256],		/* Input buffer */
     35 		*ptr,			/* Pointer into buffer */
     36 		*optr,			/* Pointer to first option name */
     37 		*cptr;			/* Pointer to first choice */
     38   int		num_options;		/* Number of options */
     39   cups_option_t	*options;		/* Options */
     40   char		*option,		/* Current option */
     41 		*choice;		/* Current choice */
     42 
     43 
     44   if (argc != 2)
     45   {
     46     puts("Usage: testconflicts filename.ppd");
     47     return (1);
     48   }
     49 
     50   if ((ppd = ppdOpenFile(argv[1])) == NULL)
     51   {
     52     ppd_status_t	err;		/* Last error in file */
     53     int			linenum;	/* Line number in file */
     54 
     55     err = ppdLastError(&linenum);
     56 
     57     printf("Unable to open PPD file \"%s\": %s on line %d\n", argv[1],
     58            ppdErrorString(err), linenum);
     59     return (1);
     60   }
     61 
     62   ppdMarkDefaults(ppd);
     63 
     64   option = NULL;
     65   choice = NULL;
     66 
     67   for (;;)
     68   {
     69     num_options = 0;
     70     options     = NULL;
     71 
     72     if (!cupsResolveConflicts(ppd, option, choice, &num_options, &options))
     73       puts("Unable to resolve conflicts!");
     74     else if ((!option && num_options > 0) || (option && num_options > 1))
     75     {
     76       fputs("Resolved conflicts with the following options:\n   ", stdout);
     77       for (i = 0; i < num_options; i ++)
     78         if (!option || _cups_strcasecmp(option, options[i].name))
     79 	  printf(" %s=%s", options[i].name, options[i].value);
     80       putchar('\n');
     81 
     82       cupsFreeOptions(num_options, options);
     83     }
     84 
     85     if (option)
     86     {
     87       free(option);
     88       option = NULL;
     89     }
     90 
     91     if (choice)
     92     {
     93       free(choice);
     94       choice = NULL;
     95     }
     96 
     97     printf("\nNew Option(s): ");
     98     fflush(stdout);
     99     if (!fgets(line, sizeof(line), stdin) || line[0] == '\n')
    100       break;
    101 
    102     for (ptr = line; isspace(*ptr & 255); ptr ++);
    103     for (optr = ptr; *ptr && *ptr != '='; ptr ++);
    104     if (!*ptr)
    105       break;
    106     for (*ptr++ = '\0', cptr = ptr; *ptr && !isspace(*ptr & 255); ptr ++);
    107     if (!*ptr)
    108       break;
    109     *ptr++ = '\0';
    110 
    111     option      = strdup(optr);
    112     choice      = strdup(cptr);
    113     num_options = cupsParseOptions(ptr, 0, &options);
    114 
    115     ppdMarkOption(ppd, option, choice);
    116     if (cupsMarkOptions(ppd, num_options, options))
    117       puts("Options Conflict!");
    118     cupsFreeOptions(num_options, options);
    119   }
    120 
    121   if (option)
    122     free(option);
    123   if (choice)
    124     free(choice);
    125 
    126   return (0);
    127 }
    128