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  * Licensed under Apache License v2.0.  See the file "LICENSE" for more information.
   8  */
   9
  10 /*
  11  * Include necessary headers...
  12  */
  13
  14 #include <cups/cups-private.h>
  15
  16
  17 /*
  18  * 'main()' - Copy (and uncompress) files to stdout.
  19  */
  20
  21 int                                     /* O - Exit status */
  22 main(int  argc,                         /* I - Number of command-line arguments */
  23      char *argv[])                      /* I - Command-line arguments */
  24 {
  25   cups_file_t   *fp;                    /* File */
  26   char          buffer[8192];           /* Data buffer */
  27   ssize_t       bytes;                  /* Number of bytes read/written */
  28   int           copies;                 /* Number of copies */
  29
  30
  31  /*
  32   * Check command-line...
  33   */
  34
  35   if (argc < 6 || argc > 7)
  36   {
  37     _cupsLangPrintf(stderr,
  38                     _("Usage: %s job-id user title copies options [file]"),
  39                     argv[0]);
  40     return (1);
  41   }
  42
  43  /*
  44   * Get the copy count; if we have no final content type, this is a
  45   * raw queue or raw print file, so we need to make copies...
  46   */
  47
  48   if (!getenv("FINAL_CONTENT_TYPE"))
  49     copies = atoi(argv[4]);
  50   else
  51     copies = 1;
  52
  53  /*
  54   * Open the file...
  55   */
  56
  57   if (argc == 6)
  58   {
  59     copies = 1;
  60     fp     = cupsFileStdin();
  61   }
  62   else if ((fp = cupsFileOpen(argv[6], "r")) == NULL)
  63   {
  64     fprintf(stderr, "DEBUG: Unable to open \"%s\".\n", argv[6]);
  65     _cupsLangPrintError("ERROR", _("Unable to open print file"));
  66     return (1);
  67   }
  68
  69  /*
  70   * Copy the file to stdout...
  71   */
  72
  73   while (copies > 0)
  74   {
  75     if (!getenv("FINAL_CONTENT_TYPE"))
  76       fputs("PAGE: 1 1\n", stderr);
  77
  78     cupsFileRewind(fp);
  79
  80     while ((bytes = cupsFileRead(fp, buffer, sizeof(buffer))) > 0)
  81       if (write(1, buffer, (size_t)bytes) < bytes)
  82       {
  83         _cupsLangPrintFilter(stderr, "ERROR",
  84                              _("Unable to write uncompressed print data: %s"),
  85                              strerror(errno));
  86         if (argc == 7)
  87           cupsFileClose(fp);
  88
  89         return (1);
  90       }
  91
  92     copies --;
  93   }
  94
  95  /*
  96   * Close the file and return...
  97   */
  98
  99   if (argc == 7)
 100     cupsFileClose(fp);
 101
 102   return (0);
 103 }