From 51a74b47995cfe24ef190b7e254f768eb92735f5 Mon Sep 17 00:00:00 2001 From: Matt Johnston Date: Thu, 26 Aug 2004 13:16:40 +0000 Subject: - added circular buffering for channels - added stderr support for the client - cleaned up a bunch of "unused" warnings, duplicated header definitions - added exit-status support for the client --HG-- extra : convert_revision : 5bdf806d8b440c87f7235414662f4189195618f4 --- circbuffer.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 circbuffer.h (limited to 'circbuffer.h') diff --git a/circbuffer.h b/circbuffer.h new file mode 100644 index 0000000..21c5134 --- /dev/null +++ b/circbuffer.h @@ -0,0 +1,50 @@ +/* + * 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 _CIRCBUFFER_H_ +#define _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_readlen(circbuffer *cbuf); /* max linear read len */ +unsigned int cbuf_writelen(circbuffer *cbuf); /* max linear write len */ + +unsigned char* cbuf_readptr(circbuffer *cbuf, unsigned int len); +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 -- cgit v1.2.3