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1 /*
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2 * $Id: gt_utils.h,v 1.8 2004/04/17 06:05:54 hipnod Exp $
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3 *
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4 * Copyright (C) 2001-2003 giFT project (gift.sourceforge.net)
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5 *
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6 * This program is free software; you can redistribute it and/or modify it
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7 * under the terms of the GNU General Public License as published by the
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8 * Free Software Foundation; either version 2, or (at your option) any
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9 * later version.
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10 *
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11 * This program is distributed in the hope that it will be useful, but
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12 * WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * General Public License for more details.
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15 */
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16
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17 #ifndef GIFT_GT_UTILS_H_
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18 #define GIFT_GT_UTILS_H_
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19
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20 /*****************************************************************************/
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21
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22 /* define to set data structures to a predefined value after freeing */
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23 /* #define POISON_FREE 1 */
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24
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25 /*****************************************************************************/
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26
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27 typedef struct gt_zlib_stream
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28 {
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29 void *streamptr;
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30
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31 enum
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32 {
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33 ZSTREAM_NONE = 0x00,
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34 ZSTREAM_INFLATE = 0x01,
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35 ZSTREAM_DEFLATE = 0x02,
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36 } type;
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37
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38 char *data;
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39 char *start, *end;
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40 char *pos;
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41 } ZlibStream;
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42
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43 /*****************************************************************************/
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44
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45 char *make_str (char *pseudo_str, int len);
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46
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47 int peer_addr (int fd, in_addr_t *r_ip, in_port_t *r_port);
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48
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49 void fprint_hex (FILE *f, char *buf, int len);
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50
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51 /*****************************************************************************/
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52
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53 ZlibStream *zlib_stream_open (size_t max);
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54 void zlib_stream_close (ZlibStream *stream);
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55 int zlib_stream_inflate (ZlibStream *stream, char *data, size_t size);
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56 int zlib_stream_write (ZlibStream *stream, char *data, size_t size);
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57
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58 /* returns the amount of data read */
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59 int zlib_stream_read (ZlibStream *stream, char **r_data);
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60
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61 /*****************************************************************************/
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62
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63 #ifdef POISON_FREE
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64 #define poisoned_free(ptr, chr) \
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65 do { \
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66 memset ((ptr), (chr), sizeof (*(ptr))); \
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67 free ((ptr)); \
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68 } while (0)
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69 #else /* POISON_FREE */
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70 #define poisoned_free(ptr, chr) \
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71 free ((ptr))
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72 #endif /* POISON_FREE */
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73
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74 /*****************************************************************************/
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75
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76 #endif /* GIFT_GT_UTILS_H_ */
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