filter/gziptoany.c

   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  * file is 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 }