[thirdparty/cups.git] / filter / gziptoany.c

/*
 * "$Id: gziptoany.c,v 1.1 2003/03/30 21:43:00 mike Exp $"
 *
 *   GZIP pre-filter for the Common UNIX Printing System (CUPS).
 *
 *   Copyright 1993-2003 by Easy Software Products.
 *
 *   These coded instructions, statements, and computer programs are the
 *   property of Easy Software Products and are protected by Federal
 *   copyright law.  Distribution and use rights are outlined in the file
 *   "LICENSE.txt" which should have been included with this file.  If this
 *   file is missing or damaged please contact Easy Software Products
 *   at:
 *
 *       Attn: CUPS Licensing Information
 *       Easy Software Products
 *       44141 Airport View Drive, Suite 204
 *       Hollywood, Maryland 20636-3111 USA
 *
 *       Voice: (301) 373-9603
 *       EMail: cups-info@cups.org
 *         WWW: http://www.cups.org
 *
 *   This file is subject to the Apple OS-Developed Software exception.
 *
 * Contents:
 *
 *   main() - Uncompress gzip'd files and send them to stdout...
 */

/*
 * Include necessary headers...
 */

#include <cups/string.h>
#include <errno.h>

#ifdef HAVE_LIBZ
#  include <zlib.h>
#endif /* HAVE_LIBZ */


/*
 * 'main()' - Uncompress gzip'd files and send them to stdout...
 */

int					/* O - Exit status */
main(int  argc,				/* I - Number of command-line arguments */
     char *argv[])			/* I - Command-line arguments */
{
#ifdef HAVE_LIBZ
  gzFile	fp;			/* GZIP'd file */
  char		buffer[8192];		/* Data buffer */
  int		bytes;			/* Number of bytes read/written */


 /*
  * Check command-line...
  */

  if (argc != 7)
  {
    fputs("ERROR: gziptoany job-id user title copies options file\n", stderr);
    return (1);
  }

 /*
  * Open the gzip file...
  */

  if ((fp = gzopen(argv[6], "rb")) == NULL)
  {
    fprintf(stderr, "ERROR: Unable to open GZIP file: %s\n", strerror(errno));
    return (1);
  }

 /*
  * Copy the gzip file to stdout...
  */

  setbuf(stdout, NULL);

  while ((bytes = gzread(fp, buffer, sizeof(buffer))) > 0)
    if (fwrite(buffer, 1, bytes, stdout) < bytes)
    {
      fprintf(stderr, "ERROR: Unable to write uncompressed document data: %s\n",
              strerror(ferror(stdout)));
      gzclose(fp);

      return (1);
    }

 /*
  * Close the file and return...
  */

  gzclose(fp);

  return (0);
#else
  fputs("INFO: Hint: recompile CUPS with ZLIB.\n", stderr);
  fputs("ERROR: GZIP compression support not compiled in!\n", stderr);
  return (1);
#endif /* HAVE_LIBZ */
}


/*
 * End of "$Id: gziptoany.c,v 1.1 2003/03/30 21:43:00 mike Exp $".
 */
Commit	Line	Data
2a5bf7e5	1	/*
	2	* "$Id: gziptoany.c,v 1.1 2003/03/30 21:43:00 mike Exp $"
	3	*
	4	* GZIP pre-filter for the Common UNIX Printing System (CUPS).
	5	*
	6	* Copyright 1993-2003 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 20636-3111 USA
	19	*
	20	* Voice: (301) 373-9603
	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() - Uncompress gzip'd files and send them to stdout...
	29	*/
	30
	31	/*
	32	* Include necessary headers...
	33	*/
	34
	35	#include <cups/string.h>
	36	#include <errno.h>
	37
	38	#ifdef HAVE_LIBZ
	39	# include <zlib.h>
	40	#endif /* HAVE_LIBZ */
	41
	42
	43	/*
	44	* 'main()' - Uncompress gzip'd files and send them to stdout...
	45	*/
	46
	47	int /* O - Exit status */
	48	main(int argc, /* I - Number of command-line arguments */
	49	char argv[]) / I - Command-line arguments */
	50	{
	51	#ifdef HAVE_LIBZ
	52	gzFile fp; /* GZIP'd file */
	53	char buffer[8192]; /* Data buffer */
	54	int bytes; /* Number of bytes read/written */
	55
	56
	57	/*
	58	* Check command-line...
	59	*/
	60
	61	if (argc != 7)
	62	{
	63	fputs("ERROR: gziptoany job-id user title copies options file\n", stderr);
	64	return (1);
65	}
66
67	/*
68	* Open the gzip file...
69	*/
70
71	if ((fp = gzopen(argv[6], "rb")) == NULL)
72	{
73	fprintf(stderr, "ERROR: Unable to open GZIP file: %s\n", strerror(errno));
74	return (1);
75	}
76
77	/*
78	* Copy the gzip file to stdout...
79	*/
80
81	setbuf(stdout, NULL);
82
83	while ((bytes = gzread(fp, buffer, sizeof(buffer))) > 0)
84	if (fwrite(buffer, 1, bytes, stdout) < bytes)
85	{
86	fprintf(stderr, "ERROR: Unable to write uncompressed document data: %s\n",
87	strerror(ferror(stdout)));
88	gzclose(fp);
89
90	return (1);
91	}
92
93	/*
94	* Close the file and return...
95	*/
96
97	gzclose(fp);
98
99	return (0);
100	#else
101	fputs("INFO: Hint: recompile CUPS with ZLIB.\n", stderr);
102	fputs("ERROR: GZIP compression support not compiled in!\n", stderr);
103	return (1);
104	#endif /* HAVE_LIBZ */
105	}
106
107
108	/*
109	* End of "$Id: gziptoany.c,v 1.1 2003/03/30 21:43:00 mike Exp $".
110	*/