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      1 /*
      2  * GZIP/raw pre-filter for CUPS.
      3  *
      4  * Copyright 2007-2015 by Apple Inc.
      5  * Copyright 1993-2007 by Easy Software Products.
      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  * This file is subject to the Apple OS-Developed Software exception.
     14  */
     15 
     16 /*
     17  * Include necessary headers...
     18  */
     19 
     20 #include <cups/cups-private.h>
     21 
     22 
     23 /*
     24  * 'main()' - Copy (and uncompress) files to stdout.
     25  */
     26 
     27 int					/* O - Exit status */
     28 main(int  argc,				/* I - Number of command-line arguments */
     29      char *argv[])			/* I - Command-line arguments */
     30 {
     31   cups_file_t	*fp;			/* File */
     32   char		buffer[8192];		/* Data buffer */
     33   ssize_t	bytes;			/* Number of bytes read/written */
     34   int		copies;			/* Number of copies */
     35 
     36 
     37  /*
     38   * Check command-line...
     39   */
     40 
     41   if (argc < 6 || argc > 7)
     42   {
     43     _cupsLangPrintf(stderr,
     44                     _("Usage: %s job-id user title copies options [file]"),
     45                     argv[0]);
     46     return (1);
     47   }
     48 
     49  /*
     50   * Get the copy count; if we have no final content type, this is a
     51   * raw queue or raw print file, so we need to make copies...
     52   */
     53 
     54   if (!getenv("FINAL_CONTENT_TYPE"))
     55     copies = atoi(argv[4]);
     56   else
     57     copies = 1;
     58 
     59  /*
     60   * Open the file...
     61   */
     62 
     63   if (argc == 6)
     64   {
     65     copies = 1;
     66     fp     = cupsFileStdin();
     67   }
     68   else if ((fp = cupsFileOpen(argv[6], "r")) == NULL)
     69   {
     70     fprintf(stderr, "DEBUG: Unable to open \"%s\".\n", argv[6]);
     71     _cupsLangPrintError("ERROR", _("Unable to open print file"));
     72     return (1);
     73   }
     74 
     75  /*
     76   * Copy the file to stdout...
     77   */
     78 
     79   while (copies > 0)
     80   {
     81     if (!getenv("FINAL_CONTENT_TYPE"))
     82       fputs("PAGE: 1 1\n", stderr);
     83 
     84     cupsFileRewind(fp);
     85 
     86     while ((bytes = cupsFileRead(fp, buffer, sizeof(buffer))) > 0)
     87       if (write(1, buffer, (size_t)bytes) < bytes)
     88       {
     89 	_cupsLangPrintFilter(stderr, "ERROR",
     90 			     _("Unable to write uncompressed print data: %s"),
     91 			     strerror(errno));
     92         if (argc == 7)
     93 	  cupsFileClose(fp);
     94 
     95 	return (1);
     96       }
     97 
     98     copies --;
     99   }
    100 
    101  /*
    102   * Close the file and return...
    103   */
    104 
    105   if (argc == 7)
    106     cupsFileClose(fp);
    107 
    108   return (0);
    109 }
    110