filter/gziptoany.c

   1 /*
   2  * "$Id: gziptoany.c 6378 2007-03-21 07:18:18Z mike $"
   3  *
   4  *   GZIP/raw pre-filter for the Common UNIX Printing System (CUPS).
   5  *
   6  *   Copyright 1993-2007 by Easy Software Products.
   7  *
   8  *   These coded instructions, statements, and computer programs are the
   9  *   property of Easy Software Products and are protected by Federal
  10  *   copyright law.  Distribution and use rights are outlined in the file
  11  *   "LICENSE.txt" which should have been included with this file.  If this
  12  *   file is missing or damaged please contact Easy Software Products
  13  *   at:
  14  *
  15  *       Attn: CUPS Licensing Information
  16  *       Easy Software Products
  17  *       44141 Airport View Drive, Suite 204
  18  *       Hollywood, Maryland 20636 USA
  19  *
  20  *       Voice: (301) 373-9600
  21  *       EMail: cups-info@cups.org
  22  *         WWW: http://www.cups.org
  23  *
  24  *   This file is subject to the Apple OS-Developed Software exception.
  25  *
  26  * Contents:
  27  *
  28  *   main() - Copy (and uncompress) files to stdout.
  29  */
  30
  31 /*
  32  * Include necessary headers...
  33  */
  34
  35 #include <cups/file.h>
  36 #include <cups/string.h>
  37 #include <stdlib.h>
  38 #include <errno.h>
  39
  40
  41 /*
  42  * 'main()' - Copy (and uncompress) files to stdout.
  43  */
  44
  45 int                                     /* O - Exit status */
  46 main(int  argc,                         /* I - Number of command-line arguments */
  47      char *argv[])                      /* I - Command-line arguments */
  48 {
  49   cups_file_t   *fp;                    /* File */
  50   char          buffer[8192];           /* Data buffer */
  51   int           bytes;                  /* Number of bytes read/written */
  52   int           copies;                 /* Number of copies */
  53
  54
  55  /*
  56   * Check command-line...
  57   */
  58
  59   if (argc != 7)
  60   {
  61     fputs("ERROR: gziptoany job-id user title copies options file\n", stderr);
  62     return (1);
  63   }
  64
  65  /*
  66   * Get the copy count; if we have no final content type, this is a
  67   * raw queue or raw print file, so we need to make copies...
  68   */
  69
  70   if (!getenv("FINAL_CONTENT_TYPE"))
  71     copies = atoi(argv[4]);
  72   else
  73     copies = 1;
  74
  75  /*
  76   * Open the file...
  77   */
  78
  79   if ((fp = cupsFileOpen(argv[6], "r")) == NULL)
  80   {
  81     fprintf(stderr, "ERROR: Unable to open file \"%s\": %s\n", argv[6],
  82             strerror(errno));
  83     return (1);
  84   }
  85
  86  /*
  87   * Copy the file to stdout...
  88   */
  89
  90   setbuf(stdout, NULL);
  91
  92   while (copies > 0)
  93   {
  94     cupsFileRewind(fp);
  95
  96     while ((bytes = cupsFileRead(fp, buffer, sizeof(buffer))) > 0)
  97       if (fwrite(buffer, 1, bytes, stdout) < bytes)
  98       {
  99         fprintf(stderr,
 100                 "ERROR: Unable to write uncompressed document data: %s\n",
 101                 strerror(ferror(stdout)));
 102         cupsFileClose(fp);
 103
 104         return (1);
 105       }
 106
 107     copies --;
 108   }
 109
 110  /*
 111   * Close the file and return...
 112   */
 113
 114   cupsFileClose(fp);
 115
 116   return (0);
 117 }
 118
 119
 120 /*
 121  * End of "$Id: gziptoany.c 6378 2007-03-21 07:18:18Z mike $".
 122  */