Mercurial > code
annotate buffer.h @ 21:ae4128d16c92
Improve security and FIXED size buffer
author | David Demelier <markand@malikania.fr> |
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date | Fri, 09 Sep 2011 17:32:53 +0200 |
parents | 9ee89108528b |
children | 5252fa9b5cb1 |
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1 /* |
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2 * buffer.h -- safe unlimited size string |
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3 * |
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4 * Copyright (c) 2011, David Demelier <markand@malikania.fr> |
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5 * |
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6 * Permission to use, copy, modify, and/or distribute this software for any |
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7 * purpose with or without fee is hereby granted, provided that the above |
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8 * copyright notice and this permission notice appear in all copies. |
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9 * |
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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17 */ |
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19 #ifndef _BUFFER_H_ |
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20 #define _BUFFER_H_ |
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21 |
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22 #define BUFFER_DEFAULT_BSIZE 512 |
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23 |
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24 #include <stdarg.h> |
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25 |
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26 struct buffer { |
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27 char *data; /* string buffer */ |
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28 size_t length; /* string's length */ |
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29 |
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30 #define BUFFER_FIXED 0x00000000 |
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31 #define BUFFER_AUTO 0x00000001 |
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32 int flags; /* buffer's flags (default AUTO) */ |
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34 /* Private should not be modified by user */ | |
35 size_t size; /* current size */ | |
36 size_t bsize; /* block size */ | |
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37 }; |
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38 |
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39 struct buffer *buffer_new(const char *, size_t, int); |
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40 #define buffer_new_auto(size) buffer_new(NULL, size, BUFFER_AUTO) |
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41 #define buffer_new_fixed(max) buffer_new(NULL, max, BUFFER_FIXED) |
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42 |
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43 int buffer_strcat(struct buffer *, const char *); |
1 | 44 int buffer_putc(struct buffer *buf, char); |
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45 int buffer_bcat(struct buffer *, const void *, size_t); |
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46 int buffer_vprintf(struct buffer *, const char *, va_list); |
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47 int buffer_printf(struct buffer *, const char *, ...); |
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48 int buffer_shrink(struct buffer *); |
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49 char *buffer_end(struct buffer *); |
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50 void buffer_clear(struct buffer *); |
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51 void buffer_free(struct buffer *); |
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52 |
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53 #endif /* _BUFFER_H_ */ |