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/* -*- Mode: C; c-file-style: "bsd" -*-
* stream.h - internal definiton for the STREAM object
* Copyright (C) 2002, 2003 Timo Schulz
*
* This file is part of OpenCDK.
*
* OpenCDK is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* OpenCDK is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenCDK; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef CDK_STREAM_H
#define CDK_STREAM_H
enum {
fDUMMY = 0,
fARMOR = 1,
fCIPHER = 2,
fLITERAL = 3,
fCOMPRESS= 4,
fHASH = 5,
fTEXT = 6
};
typedef int (*filter_fnct_t) (void * opaque, int ctl, FILE * in, FILE * out);
struct stream_filter_s {
struct stream_filter_s * next;
filter_fnct_t fnct;
void * opaque;
FILE * tmp;
union {
armor_filter_t afx;
cipher_filter_t cfx;
literal_filter_t pfx;
compress_filter_t zfx;
text_filter_t tfx;
md_filter_t mfx;
} u;
struct {
unsigned enabled:1;
unsigned rdonly:1;
} flags;
unsigned type;
unsigned ctl;
};
struct cdk_stream_s {
struct stream_filter_s * filters;
int fmode;
int error;
size_t blkmode;
struct {
unsigned filtrated:1;
unsigned eof:1;
unsigned write:1;
unsigned temp:1;
unsigned reset:1;
unsigned no_filter:1;
unsigned compressed:3;
} flags;
struct {
unsigned char buf[8192];
unsigned on:1;
size_t size;
} cache;
char * fname;
FILE * fp;
};
#endif /* CDK_STREAM_H */
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