paulo@0: /*
paulo@0:  * $Id: gt_utils.h,v 1.8 2004/04/17 06:05:54 hipnod Exp $
paulo@0:  *
paulo@0:  * Copyright (C) 2001-2003 giFT project (gift.sourceforge.net)
paulo@0:  *
paulo@0:  * This program is free software; you can redistribute it and/or modify it
paulo@0:  * under the terms of the GNU General Public License as published by the
paulo@0:  * Free Software Foundation; either version 2, or (at your option) any
paulo@0:  * later version.
paulo@0:  *
paulo@0:  * This program is distributed in the hope that it will be useful, but
paulo@0:  * WITHOUT ANY WARRANTY; without even the implied warranty of
paulo@0:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
paulo@0:  * General Public License for more details.
paulo@0:  */
paulo@0: 
paulo@0: #ifndef GIFT_GT_UTILS_H_
paulo@0: #define GIFT_GT_UTILS_H_
paulo@0: 
paulo@0: /*****************************************************************************/
paulo@0: 
paulo@0: /* define to set data structures to a predefined value after freeing */
paulo@0: /* #define POISON_FREE	1 */
paulo@0: 
paulo@0: /*****************************************************************************/
paulo@0: 
paulo@0: typedef struct gt_zlib_stream
paulo@0: {
paulo@0: 	void          *streamptr;
paulo@0: 
paulo@0: 	enum
paulo@0: 	{
paulo@0: 		ZSTREAM_NONE    = 0x00,
paulo@0: 		ZSTREAM_INFLATE = 0x01,
paulo@0: 		ZSTREAM_DEFLATE = 0x02,
paulo@0: 	} type;
paulo@0: 
paulo@0: 	char *data;
paulo@0: 	char *start, *end;
paulo@0: 	char *pos;
paulo@0: } ZlibStream;
paulo@0: 
paulo@0: /*****************************************************************************/
paulo@0: 
paulo@0: char   *make_str   (char *pseudo_str, int len);
paulo@0: 
paulo@0: int     peer_addr  (int fd, in_addr_t *r_ip, in_port_t *r_port);
paulo@0: 
paulo@0: void    fprint_hex (FILE *f, char *buf, int len);
paulo@0: 
paulo@0: /*****************************************************************************/
paulo@0: 
paulo@0: ZlibStream *zlib_stream_open    (size_t max);
paulo@0: void        zlib_stream_close   (ZlibStream *stream);
paulo@0: int         zlib_stream_inflate (ZlibStream *stream, char *data, size_t size);
paulo@0: int         zlib_stream_write   (ZlibStream *stream, char *data, size_t size);
paulo@0: 
paulo@0: /* returns the amount of data read */
paulo@0: int         zlib_stream_read    (ZlibStream *stream, char **r_data);
paulo@0: 
paulo@0: /*****************************************************************************/
paulo@0: 
paulo@0: #ifdef POISON_FREE
paulo@0: #define poisoned_free(ptr, chr) \
paulo@0: do { \
paulo@0: 	memset ((ptr), (chr), sizeof (*(ptr))); \
paulo@0: 	free ((ptr)); \
paulo@0: } while (0)
paulo@0: #else /* POISON_FREE */
paulo@0: #define poisoned_free(ptr, chr) \
paulo@0: 	free ((ptr))
paulo@0: #endif /* POISON_FREE */
paulo@0: 
paulo@0: /*****************************************************************************/
paulo@0: 
paulo@0: #endif /* GIFT_GT_UTILS_H_ */