annotate buffer.h @ 224:1dbd2473482f DROPBEAR_0.46

* ... and a bit more for the CHANGES
author Matt Johnston <matt@ucc.asn.au>
date Fri, 08 Jul 2005 19:20:10 +0000
parents 161557a9dde8
children c3f2ec71e3d4 76097ec1a29a
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1 /*
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2 * Dropbear - a SSH2 server
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3 *
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4 * Copyright (c) 2002,2003 Matt Johnston
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5 * All rights reserved.
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6 *
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7 * Permission is hereby granted, free of charge, to any person obtaining a copy
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8 * of this software and associated documentation files (the "Software"), to deal
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9 * in the Software without restriction, including without limitation the rights
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10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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11 * copies of the Software, and to permit persons to whom the Software is
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12 * furnished to do so, subject to the following conditions:
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13 *
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14 * The above copyright notice and this permission notice shall be included in
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15 * all copies or substantial portions of the Software.
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16 *
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17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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23 * SOFTWARE. */
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24
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25 #ifndef _BUFFER_H_
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26
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27 #define _BUFFER_H_
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28
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29 #include "includes.h"
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30
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31 struct buf {
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32
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33 unsigned char * data;
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34 unsigned int len; /* the used size */
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35 unsigned int pos;
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36 unsigned int size; /* the memory size */
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37
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38 };
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39
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40 typedef struct buf buffer;
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41
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42 buffer * buf_new(unsigned int size);
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43 void buf_resize(buffer *buf, unsigned int newsize);
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44 void buf_free(buffer* buf);
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45 void buf_burn(buffer* buf);
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46 buffer* buf_newcopy(buffer* buf);
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47 void buf_setlen(buffer* buf, unsigned int len);
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48 void buf_incrlen(buffer* buf, unsigned int incr);
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49 void buf_setpos(buffer* buf, unsigned int pos);
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50 void buf_incrpos(buffer* buf, int incr); /* -ve is ok, to go backwards */
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51 void buf_incrwritepos(buffer* buf, unsigned int incr);
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52 unsigned char buf_getbyte(buffer* buf);
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53 unsigned char buf_getbool(buffer* buf);
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54 void buf_putbyte(buffer* buf, unsigned char val);
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55 unsigned char* buf_getptr(buffer* buf, unsigned int len);
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56 unsigned char* buf_getwriteptr(buffer* buf, unsigned int len);
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57 unsigned char* buf_getstring(buffer* buf, unsigned int *retlen);
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58 void buf_eatstring(buffer *buf);
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59 void buf_putint(buffer* buf, unsigned int val);
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60 void buf_putstring(buffer* buf, const unsigned char* str, unsigned int len);
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61 void buf_putbytes(buffer *buf, const unsigned char *bytes, unsigned int len);
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62 void buf_putmpint(buffer* buf, mp_int * mp);
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63 int buf_getmpint(buffer* buf, mp_int* mp);
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64 unsigned int buf_getint(buffer* buf);
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65
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66 #endif /* _BUFFER_H_ */