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annotate buffer.h @ 1122:aaf576b27a10

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Merge pull request #13 from gazoo74/fix-warnings Fix warnings
author Matt Johnston <matt@ucc.asn.au>
date Thu, 04 Jun 2015 23:08:50 +0800
parents 16584026a1f0
children 06d52bcb8094
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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 DROPBEAR_BUFFER_H_
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27 #define DROPBEAR_BUFFER_H_
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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 /* don't manipulate data member outside of buffer.c - it
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33 is a pointer into the malloc holding buffer itself */
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34 unsigned char * data;
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35 unsigned int len; /* the used size */
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36 unsigned int pos;
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37 unsigned int size; /* the memory size */
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39 };
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40
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41 typedef struct buf buffer;
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42
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43 buffer * buf_new(unsigned int size);
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44 /* Possibly returns a new buffer*, like realloc() */
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45 buffer * buf_resize(buffer *buf, unsigned int newsize);
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46 void buf_free(buffer* buf);
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47 void buf_burn(buffer* buf);
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48 buffer* buf_newcopy(buffer* buf);
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49 void buf_setlen(buffer* buf, unsigned int len);
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50 void buf_incrlen(buffer* buf, unsigned int incr);
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51 void buf_setpos(buffer* buf, unsigned int pos);
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52 void buf_incrpos(buffer* buf, int incr); /* -ve is ok, to go backwards */
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53 void buf_incrwritepos(buffer* buf, unsigned int incr);
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54 unsigned char buf_getbyte(buffer* buf);
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55 unsigned char buf_getbool(buffer* buf);
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56 void buf_putbyte(buffer* buf, unsigned char val);
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57 unsigned char* buf_getptr(buffer* buf, unsigned int len);
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58 unsigned char* buf_getwriteptr(buffer* buf, unsigned int len);
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59 char* buf_getstring(buffer* buf, unsigned int *retlen);
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60 buffer * buf_getstringbuf(buffer *buf);
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61 void buf_eatstring(buffer *buf);
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62 void buf_putint(buffer* buf, unsigned int val);
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63 void buf_putstring(buffer* buf, const char* str, unsigned int len);
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64 void buf_putbufstring(buffer *buf, const buffer* buf_str);
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65 void buf_putbytes(buffer *buf, const unsigned char *bytes, unsigned int len);
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66 void buf_putmpint(buffer* buf, mp_int * mp);
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67 int buf_getmpint(buffer* buf, mp_int* mp);
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68 unsigned int buf_getint(buffer* buf);
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70 #endif /* DROPBEAR_BUFFER_H_ */