mirror of
git://git.gnupg.org/gnupg.git
synced 2024-12-23 10:29:58 +01:00
b725d8ec27
affected - but everything else and it seems that there is no backup of the BTS data is available :-(
142 lines
4.4 KiB
C
142 lines
4.4 KiB
C
/* filter.h
|
|
* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
|
|
*
|
|
* This file is part of GnuPG.
|
|
*
|
|
* GnuPG 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.
|
|
*
|
|
* GnuPG 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 this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
|
*/
|
|
#ifndef G10_FILTER_H
|
|
#define G10_FILTER_H
|
|
|
|
#include "types.h"
|
|
#include "cipher.h"
|
|
|
|
typedef struct {
|
|
MD_HANDLE md; /* catch all */
|
|
MD_HANDLE md2; /* if we want to calculate an alternate hash */
|
|
size_t maxbuf_size;
|
|
} md_filter_context_t;
|
|
|
|
typedef struct {
|
|
/* these fields may be initialized */
|
|
int what; /* what kind of armor headers to write */
|
|
int only_keyblocks; /* skip all headers but ".... key block" */
|
|
const char *hdrlines; /* write these headerlines */
|
|
|
|
/* these fileds must be initialized to zero */
|
|
int no_openpgp_data; /* output flag: "No valid OpenPGP data found" */
|
|
|
|
/* the following fields must be initialized to zero */
|
|
int inp_checked; /* set if the input has been checked */
|
|
int inp_bypass; /* set if the input is not armored */
|
|
int in_cleartext; /* clear text message */
|
|
int not_dash_escaped; /* clear text is not dash escaped */
|
|
int hashes; /* detected hash algorithms */
|
|
int faked; /* we are faking a literal data packet */
|
|
int truncated; /* number of truncated lines */
|
|
int qp_detected;
|
|
int pgp2mode;
|
|
|
|
byte *buffer; /* malloced buffer */
|
|
unsigned buffer_size; /* and size of this buffer */
|
|
unsigned buffer_len; /* used length of the buffer */
|
|
unsigned buffer_pos; /* read position */
|
|
|
|
byte radbuf[4];
|
|
int idx, idx2;
|
|
u32 crc;
|
|
|
|
int status; /* an internal state flag */
|
|
int cancel;
|
|
int any_data; /* any valid armored data seen */
|
|
int pending_lf; /* used together with faked */
|
|
} armor_filter_context_t;
|
|
|
|
struct unarmor_pump_s;
|
|
typedef struct unarmor_pump_s *UnarmorPump;
|
|
|
|
|
|
struct compress_filter_context_s {
|
|
int status;
|
|
void *opaque; /* (used for z_stream) */
|
|
byte *inbuf;
|
|
unsigned inbufsize;
|
|
byte *outbuf;
|
|
unsigned outbufsize;
|
|
int algo; /* compress algo */
|
|
int algo1hack;
|
|
void (*release)(struct compress_filter_context_s*);
|
|
};
|
|
typedef struct compress_filter_context_s compress_filter_context_t;
|
|
|
|
|
|
typedef struct {
|
|
DEK *dek;
|
|
u32 datalen;
|
|
CIPHER_HANDLE cipher_hd;
|
|
int header;
|
|
MD_HANDLE mdc_hash;
|
|
byte enchash[20];
|
|
int create_mdc; /* flag will be set by the cipher filter */
|
|
} cipher_filter_context_t;
|
|
|
|
|
|
|
|
typedef struct {
|
|
byte *buffer; /* malloced buffer */
|
|
unsigned buffer_size; /* and size of this buffer */
|
|
unsigned buffer_len; /* used length of the buffer */
|
|
unsigned buffer_pos; /* read position */
|
|
int truncated; /* number of truncated lines */
|
|
int not_dash_escaped;
|
|
int escape_from;
|
|
MD_HANDLE md;
|
|
int pending_lf;
|
|
int pending_esc;
|
|
} text_filter_context_t;
|
|
|
|
|
|
/* encrypt_filter_context_t defined in main.h */
|
|
|
|
/*-- mdfilter.c --*/
|
|
int md_filter( void *opaque, int control, IOBUF a, byte *buf, size_t *ret_len);
|
|
void free_md_filter_context( md_filter_context_t *mfx );
|
|
|
|
/*-- armor.c --*/
|
|
int use_armor_filter( IOBUF a );
|
|
int armor_filter( void *opaque, int control,
|
|
IOBUF chain, byte *buf, size_t *ret_len);
|
|
UnarmorPump unarmor_pump_new (void);
|
|
void unarmor_pump_release (UnarmorPump x);
|
|
int unarmor_pump (UnarmorPump x, int c);
|
|
|
|
/*-- compress.c --*/
|
|
int compress_filter( void *opaque, int control,
|
|
IOBUF chain, byte *buf, size_t *ret_len);
|
|
|
|
/*-- cipher.c --*/
|
|
int cipher_filter( void *opaque, int control,
|
|
IOBUF chain, byte *buf, size_t *ret_len);
|
|
|
|
/*-- textfilter.c --*/
|
|
int text_filter( void *opaque, int control,
|
|
IOBUF chain, byte *buf, size_t *ret_len);
|
|
int copy_clearsig_text( IOBUF out, IOBUF inp, MD_HANDLE md,
|
|
int escape_dash, int escape_from, int pgp2mode );
|
|
|
|
|
|
|
|
#endif /*G10_FILTER_H*/
|