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69 lines
2.6 KiB
C
69 lines
2.6 KiB
C
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/*
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* Dropbear - a SSH2 server
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*
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* Copyright (c) 2002,2003 Matt Johnston
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE. */
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#ifndef _BUFFER_H_
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#define _BUFFER_H_
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#include "includes.h"
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struct buf {
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unsigned char * data;
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unsigned int len; /* the used size */
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unsigned int pos;
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unsigned int size; /* the memory size */
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};
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typedef struct buf buffer;
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buffer * buf_new(unsigned int size);
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void buf_resize(buffer *buf, unsigned int newsize);
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void buf_free(buffer* buf);
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void buf_burn(buffer* buf);
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buffer* buf_newcopy(buffer* buf);
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void buf_setlen(buffer* buf, unsigned int len);
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void buf_incrlen(buffer* buf, unsigned int incr);
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void buf_setpos(buffer* buf, unsigned int pos);
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void buf_incrpos(buffer* buf, int incr); /* -ve is ok, to go backwards */
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void buf_incrwritepos(buffer* buf, unsigned int incr);
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unsigned char buf_getbyte(buffer* buf);
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unsigned char buf_getbool(buffer* buf);
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void buf_putbyte(buffer* buf, unsigned char val);
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unsigned char* buf_getptr(buffer* buf, unsigned int len);
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unsigned char* buf_getwriteptr(buffer* buf, unsigned int len);
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unsigned char* buf_getstring(buffer* buf, unsigned int *retlen);
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buffer * buf_getstringbuf(buffer *buf);
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void buf_eatstring(buffer *buf);
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void buf_putint(buffer* buf, unsigned int val);
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void buf_putstring(buffer* buf, const unsigned char* str, unsigned int len);
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void buf_putbufstring(buffer *buf, const buffer* buf_str);
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void buf_putbytes(buffer *buf, const unsigned char *bytes, unsigned int len);
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void buf_putmpint(buffer* buf, mp_int * mp);
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int buf_getmpint(buffer* buf, mp_int* mp);
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unsigned int buf_getint(buffer* buf);
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#endif /* _BUFFER_H_ */
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