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/*
* Copyright (C) 1996,1997 Michael R. Elkins <me@mutt.org>
* Copyright (C) 1999-2003 Thomas Roessler <roessler@does-not-exist.org>
* Copyright (C) 2004 g10 Code GmbH
*
* This program 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.
*
* This program 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/

#ifdef CRYPT_BACKEND_CLASSIC_PGP

#include "mutt_crypt.h"
#include "pgplib.h"


/* prototypes */

int pgp_use_gpg_agent(void);

int pgp_check_traditional (FILE *, BODY *, int);
BODY *pgp_decrypt_part (BODY *, STATE *, FILE *, BODY *);
BODY *pgp_make_key_attachment (char *);
const char *pgp_micalg (const char *fname);

char *_pgp_keyid (pgp_key_t);
char *pgp_keyid (pgp_key_t);


int mutt_check_pgp (HEADER * h);

int pgp_decrypt_mime (FILE *, FILE **, BODY *, BODY **);

/* int pgp_string_matches_hint (const char *s, LIST * hints); */

/* pgp_key_t gpg_get_candidates (struct pgp_vinfo *, pgp_ring_t, LIST *); */
pgp_key_t pgp_ask_for_key (char *, char *, short, pgp_ring_t);
pgp_key_t pgp_get_candidates (pgp_ring_t, LIST *);
pgp_key_t pgp_getkeybyaddr (ADDRESS *, short, pgp_ring_t);
pgp_key_t pgp_getkeybystr (char *, short, pgp_ring_t);

char *pgp_findKeys (ADDRESS *to, ADDRESS *cc, ADDRESS *bcc);

void pgp_forget_passphrase (void);
int pgp_application_pgp_handler (BODY *, STATE *);
int pgp_encrypted_handler (BODY *, STATE *);
void pgp_extract_keys_from_attachment_list (FILE * fp, int tag, BODY * top);
void pgp_void_passphrase (void);
int pgp_valid_passphrase (void);


/* The PGP invocation interface - not really beautiful. */

pid_t pgp_invoke_decode (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
const char *fname, short need_passphrase);
pid_t pgp_invoke_verify (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
const char *fname, const char *sig_fname);
pid_t pgp_invoke_decrypt (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
const char *fname);
pid_t pgp_invoke_sign (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
const char *fname);
pid_t pgp_invoke_encrypt (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
const char *fname, const char *uids, int sign);
pid_t pgp_invoke_export (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
const char *uids);
pid_t pgp_invoke_verify_key (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
const char *uids);
pid_t pgp_invoke_list_keys (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
pgp_ring_t keyring, LIST *hints);
pid_t pgp_invoke_traditional (FILE **pgpin, FILE **pgpout, FILE **pgperr,
int pgpinfd, int pgpoutfd, int pgperrfd,
const char *fname, const char *uids, int flags);


void pgp_invoke_import (const char *fname);
void pgp_invoke_getkeys (ADDRESS *);


/* private ? */
int pgp_verify_one (BODY *, STATE *, const char *);
BODY *pgp_traditional_encryptsign (BODY *, int, char *);
BODY *pgp_encrypt_message (BODY *, char *, int);
BODY *pgp_sign_message (BODY *);

int pgp_send_menu (HEADER *msg, int *redraw);

#endif /* CRYPT_BACKEND_CLASSIC_PGP */
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