filter/gziptoany.c

   1 /*
   2  * "$Id: gziptoany.c 6649 2007-07-11 21:46:42Z mike $"
   3  *
   4  *   GZIP/raw pre-filter for the Common UNIX Printing System (CUPS).
   5  *
   6  *   Copyright 2007 by Apple Inc.
   7  *   Copyright 1993-2007 by Easy Software Products.
   8  *
   9  *   These coded instructions, statements, and computer programs are the
  10  *   property of Apple Inc. and are protected by Federal copyright
  11  *   law.  Distribution and use rights are outlined in the file "LICENSE.txt"
  12  *   which should have been included with this file.  If this file is
  13  *   file is missing or damaged, see the license at "http://www.cups.org/".
  14  *
  15  *   This file is subject to the Apple OS-Developed Software exception.
  16  *
  17  * Contents:
  18  *
  19  *   main() - Copy (and uncompress) files to stdout.
  20  */
  21
  22 /*
  23  * Include necessary headers...
  24  */
  25
  26 #include <cups/file.h>
  27 #include <cups/string.h>
  28 #include <cups/i18n.h>
  29 #include <stdlib.h>
  30 #include <errno.h>
  31
  32
  33 /*
  34  * 'main()' - Copy (and uncompress) files to stdout.
  35  */
  36
  37 int                                     /* O - Exit status */
  38 main(int  argc,                         /* I - Number of command-line arguments */
  39      char *argv[])                      /* I - Command-line arguments */
  40 {
  41   cups_file_t   *fp;                    /* File */
  42   char          buffer[8192];           /* Data buffer */
  43   int           bytes;                  /* Number of bytes read/written */
  44   int           copies;                 /* Number of copies */
  45
  46
  47  /*
  48   * Check command-line...
  49   */
  50
  51   if (argc != 7)
  52   {
  53     fprintf(stderr, _("Usage: %s job-id user title copies options file\n"),
  54             argv[0]);
  55     return (1);
  56   }
  57
  58  /*
  59   * Get the copy count; if we have no final content type, this is a
  60   * raw queue or raw print file, so we need to make copies...
  61   */
  62
  63   if (!getenv("FINAL_CONTENT_TYPE"))
  64     copies = atoi(argv[4]);
  65   else
  66     copies = 1;
  67
  68  /*
  69   * Open the file...
  70   */
  71
  72   if ((fp = cupsFileOpen(argv[6], "r")) == NULL)
  73   {
  74     fprintf(stderr, _("ERROR: Unable to open file \"%s\": %s\n"), argv[6],
  75             strerror(errno));
  76     return (1);
  77   }
  78
  79  /*
  80   * Copy the file to stdout...
  81   */
  82
  83   setbuf(stdout, NULL);
  84
  85   while (copies > 0)
  86   {
  87     if (!getenv("FINAL_CONTENT_TYPE"))
  88       fputs("PAGE: 1 1\n", stderr);
  89
  90     cupsFileRewind(fp);
  91
  92     while ((bytes = cupsFileRead(fp, buffer, sizeof(buffer))) > 0)
  93       if (fwrite(buffer, 1, bytes, stdout) < bytes)
  94       {
  95         fprintf(stderr,
  96                 _("ERROR: Unable to write uncompressed document data: %s\n"),
  97                 strerror(ferror(stdout)));
  98         cupsFileClose(fp);
  99
 100         return (1);
 101       }
 102
 103     copies --;
 104   }
 105
 106  /*
 107   * Close the file and return...
 108   */
 109
 110   cupsFileClose(fp);
 111
 112   return (0);
 113 }
 114
 115
 116 /*
 117  * End of "$Id: gziptoany.c 6649 2007-07-11 21:46:42Z mike $".
 118  */