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c0c2c58054
to libgcrypt functions, using shared error codes from libgpg-error, replacing the old functions we used to have in ../util by those in ../jnlib and ../common, renaming the malloc functions and a couple of types. Note, that not all changes are listed below becuause they are too similar and done at far too many places. As of today the code builds using the current libgcrypt from CVS but it is very unlikely that it actually works.
156 lines
4.9 KiB
C
156 lines
4.9 KiB
C
/* filter.h
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* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG 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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* GnuPG 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 "types.h"
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#include "cipher.h"
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#include "iobuf.h"
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typedef struct {
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MD_HANDLE md; /* catch all */
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MD_HANDLE md2; /* if we want to calculate an alternate hash */
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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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/* these fields may be initialized */
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int what; /* what kind of armor headers to write */
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int only_keyblocks; /* skip all headers but ".... key block" */
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const char *hdrlines; /* write these headerlines */
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/* these fileds must be initialized to zero */
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int no_openpgp_data; /* output flag: "No valid OpenPGP data found" */
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/* the following fields must be initialized to zero */
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int inp_checked; /* set if the input has been checked */
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int inp_bypass; /* set if the input is not armored */
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int in_cleartext; /* clear text message */
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int not_dash_escaped; /* clear text is not dash escaped */
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int hashes; /* detected hash algorithms */
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int faked; /* we are faking a literal data packet */
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int truncated; /* number of truncated lines */
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int qp_detected;
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int pgp2mode;
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byte *buffer; /* malloced buffer */
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unsigned buffer_size; /* and size of this buffer */
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unsigned buffer_len; /* used length of the buffer */
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unsigned buffer_pos; /* read position */
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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 status; /* an internal state flag */
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int cancel;
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int any_data; /* any valid armored data seen */
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int pending_lf; /* used together with faked */
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} armor_filter_context_t;
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struct unarmor_pump_s;
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typedef struct unarmor_pump_s *UnarmorPump;
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struct compress_filter_context_s {
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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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int algo; /* compress algo */
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int algo1hack;
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int new_ctb;
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void (*release)(struct compress_filter_context_s*);
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};
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typedef struct compress_filter_context_s 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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CIPHER_HANDLE cipher_hd;
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int header;
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MD_HANDLE mdc_hash;
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byte enchash[20];
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int create_mdc; /* flag will be set by the cipher filter */
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} cipher_filter_context_t;
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typedef struct {
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byte *buffer; /* malloced buffer */
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unsigned buffer_size; /* and size of this buffer */
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unsigned buffer_len; /* used length of the buffer */
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unsigned buffer_pos; /* read position */
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int truncated; /* number of truncated lines */
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int not_dash_escaped;
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int escape_from;
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MD_HANDLE md;
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int pending_lf;
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int pending_esc;
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} text_filter_context_t;
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typedef struct {
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char *what; /* description */
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u32 last_time; /* last time reported */
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unsigned long last; /* last amount reported */
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unsigned long offset; /* current amount */
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unsigned long total; /* total amount */
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} progress_filter_context_t;
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/* encrypt_filter_context_t defined in main.h */
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/*-- mdfilter.c --*/
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int md_filter( void *opaque, int control, iobuf_t a, byte *buf, size_t *ret_len);
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void free_md_filter_context( md_filter_context_t *mfx );
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/*-- armor.c --*/
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int use_armor_filter( iobuf_t a );
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int armor_filter( void *opaque, int control,
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iobuf_t chain, byte *buf, size_t *ret_len);
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UnarmorPump unarmor_pump_new (void);
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void unarmor_pump_release (UnarmorPump x);
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int unarmor_pump (UnarmorPump x, int c);
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/*-- compress.c --*/
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int compress_filter( void *opaque, int control,
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iobuf_t 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_t chain, byte *buf, size_t *ret_len);
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/*-- textfilter.c --*/
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int text_filter( void *opaque, int control,
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iobuf_t chain, byte *buf, size_t *ret_len);
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int copy_clearsig_text( iobuf_t out, iobuf_t inp, MD_HANDLE md,
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int escape_dash, int escape_from, int pgp2mode );
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/*-- progress.c --*/
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int progress_filter (void *opaque, int control,
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iobuf_t a, byte *buf, size_t *ret_len);
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void handle_progress (progress_filter_context_t *pfx,
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iobuf_t inp, const char *name);
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#endif /*G10_FILTER_H*/
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