mirror of git://git.gnupg.org/gnupg.git
80 lines
2.0 KiB
C
80 lines
2.0 KiB
C
/* filter.h
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* Copyright (c) 1997 by Werner Koch (dd9jn)
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*
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* This file is part of G10.
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*
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* G10 is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* G10 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifndef G10_FILTER_H
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#define G10_FILTER_H
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#include "cipher.h"
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typedef struct {
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MD5HANDLE md5; /* if !NULL create md5 */
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RMDHANDLE rmd160; /* if !NULL create rmd160 */
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size_t maxbuf_size;
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} md_filter_context_t;
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typedef struct {
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int status;
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int what;
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byte radbuf[4];
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int idx, idx2;
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u32 crc;
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int inp_checked; /* set if inp has been checked */
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int inp_bypass; /* set if the input is not armored */
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int inp_eof;
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} armor_filter_context_t;
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typedef struct {
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int status;
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void *opaque; /* (used for z_stream) */
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byte *inbuf;
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unsigned inbufsize;
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byte *outbuf;
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unsigned outbufsize;
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} compress_filter_context_t;
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typedef struct {
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DEK *dek;
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u32 datalen;
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BLOWFISH_context *bf_ctx;
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int header;
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} cipher_filter_context_t;
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/*-- mdfilter.c --*/
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int md_filter( void *opaque, int control, IOBUF a, byte *buf, size_t *ret_len);
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/*-- armor.c --*/
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int armor_filter( void *opaque, int control,
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IOBUF chain, byte *buf, size_t *ret_len);
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/*-- compress.c --*/
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int compress_filter( void *opaque, int control,
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IOBUF chain, byte *buf, size_t *ret_len);
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/*-- cipher.c --*/
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int cipher_filter( void *opaque, int control,
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IOBUF chain, byte *buf, size_t *ret_len);
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#endif /*G10_FILTER_H*/
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