Mercurial > dropbear
view circbuffer.h @ 1397:18c0b0e450ff
Fix configure options using AC_ARG_ENABLE
Configure options to disable some features, which are checked using
AC_ARG_ENABLE can be invoked with --enable-<option> as well.
The current configure script always generates a #define for such options
even though the --enable-<option> case should not generate a #define.
Fix this by properly checking if the feature should be enabled, in which
case no #define is being generated.
Signed-off-by: Stefan Hauser <[email protected]>
author | Stefan Hauser <stefan@shauser.net> |
---|---|
date | Wed, 27 Jul 2016 19:38:56 +0200 |
parents | acf444bcb115 |
children | 06d52bcb8094 |
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/* * Dropbear SSH * * Copyright (c) 2002-2004 Matt Johnston * All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef DROPBEAR_CIRCBUFFER_H_ #define DROPBEAR_CIRCBUFFER_H_ struct circbuf { unsigned int size; unsigned int readpos; unsigned int writepos; unsigned int used; unsigned char* data; }; typedef struct circbuf circbuffer; circbuffer * cbuf_new(unsigned int size); void cbuf_free(circbuffer * cbuf); unsigned int cbuf_getused(circbuffer * cbuf); /* how much data stored */ unsigned int cbuf_getavail(circbuffer * cbuf); /* how much we can write */ unsigned int cbuf_writelen(circbuffer *cbuf); /* max linear write len */ /* returns pointers to the two portions of the circular buffer that can be read */ void cbuf_readptrs(circbuffer *cbuf, unsigned char **p1, unsigned int *len1, unsigned char **p2, unsigned int *len2); unsigned char* cbuf_writeptr(circbuffer *cbuf, unsigned int len); void cbuf_incrwrite(circbuffer *cbuf, unsigned int len); void cbuf_incrread(circbuffer *cbuf, unsigned int len); #endif