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diff --git a/g10/main.h b/g10/main.h
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+/* main.h
+ * Copyright (C) 1998, 1999, 2000, 2001, 2002 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_MAIN_H
+#define G10_MAIN_H
+#include "types.h"
+#include "iobuf.h"
+#include "mpi.h"
+#include "cipher.h"
+#include "keydb.h"
+
+/* It could be argued that the default cipher should be 3DES rather
+   than CAST5, and the default compression should be 0
+   (i.e. uncompressed) rather than 1 (zip). */
+#define DEFAULT_CIPHER_ALGO   CIPHER_ALGO_CAST5
+#define DEFAULT_DIGEST_ALGO   DIGEST_ALGO_SHA1
+#define DEFAULT_COMPRESS_ALGO 1
+
+typedef struct {
+    int header_okay;
+    PK_LIST pk_list;
+    cipher_filter_context_t cfx;
+} encrypt_filter_context_t;
+
+struct groupitem
+{
+  char *name;
+  STRLIST values;
+  struct groupitem *next;
+};
+
+/*-- g10.c --*/
+extern int g10_errors_seen;
+
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 5 )
+  void g10_exit(int rc) __attribute__ ((noreturn));
+#else
+  void g10_exit(int rc);
+#endif
+void print_pubkey_algo_note( int algo );
+void print_cipher_algo_note( int algo );
+void print_digest_algo_note( int algo );
+
+/*-- armor.c --*/
+char *make_radix64_string( const byte *data, size_t len );
+
+/*-- misc.c --*/
+void trap_unaligned(void);
+int disable_core_dumps(void);
+u16 checksum_u16( unsigned n );
+u16 checksum( byte *p, unsigned n );
+u16 checksum_mpi( MPI a );
+u32 buffer_to_u32( const byte *buffer );
+const byte *get_session_marker( size_t *rlen );
+int openpgp_cipher_test_algo( int algo );
+int openpgp_pk_test_algo( int algo, unsigned int usage_flags );
+int openpgp_pk_algo_usage ( int algo );
+int openpgp_md_test_algo( int algo );
+
+#ifdef USE_IDEA
+void idea_cipher_warn( int show );
+#else
+#define idea_cipher_warn(a)
+#endif
+
+struct expando_args
+{
+  PKT_public_key *pk;
+  PKT_secret_key *sk;
+  byte imagetype;
+};
+
+char *pct_expando(const char *string,struct expando_args *args);
+int hextobyte( const char *s );
+void deprecated_warning(const char *configname,unsigned int configlineno,
+			const char *option,const char *repl1,const char *repl2);
+const char *compress_algo_to_string(int algo);
+int string_to_compress_algo(const char *string);
+int check_compress_algo(int algo);
+int default_cipher_algo(void);
+int default_compress_algo(void);
+const char *compliance_option_string(void);
+void compliance_failure(void);
+
+struct parse_options
+{
+  char *name;
+  unsigned int bit;
+};
+
+int parse_options(char *str,unsigned int *options,struct parse_options *opts);
+
+/*-- helptext.c --*/
+void display_online_help( const char *keyword );
+
+/*-- encode.c --*/
+int encode_symmetric( const char *filename );
+int encode_store( const char *filename );
+int encode_crypt( const char *filename, STRLIST remusr );
+void encode_crypt_files(int nfiles, char **files, STRLIST remusr);
+int encrypt_filter( void *opaque, int control,
+		    IOBUF a, byte *buf, size_t *ret_len);
+
+
+/*-- sign.c --*/
+int complete_sig( PKT_signature *sig, PKT_secret_key *sk, MD_HANDLE md );
+int sign_file( STRLIST filenames, int detached, STRLIST locusr,
+	       int do_encrypt, STRLIST remusr, const char *outfile );
+int clearsign_file( const char *fname, STRLIST locusr, const char *outfile );
+int sign_symencrypt_file (const char *fname, STRLIST locusr);
+
+/*-- sig-check.c --*/
+int check_revocation_keys (PKT_public_key *pk, PKT_signature *sig);
+int check_key_signature( KBNODE root, KBNODE node, int *is_selfsig );
+int check_key_signature2( KBNODE root, KBNODE node, PKT_public_key *check_pk,
+			  int *is_selfsig, u32 *r_expiredate, int *r_expired );
+
+/*-- delkey.c --*/
+int delete_keys( STRLIST names, int secret, int allow_both );
+
+/*-- keyedit.c --*/
+void keyedit_menu( const char *username, STRLIST locusr, STRLIST cmds,
+							    int sign_mode );
+void show_basic_key_info (KBNODE keyblock);
+
+/*-- keygen.c --*/
+u32 ask_expire_interval(int object);
+u32 ask_expiredate(void);
+void generate_keypair( const char *fname );
+int keygen_set_std_prefs (const char *string,int personal);
+PKT_user_id *keygen_get_std_prefs (void);
+int keygen_add_key_expire( PKT_signature *sig, void *opaque );
+int keygen_add_std_prefs( PKT_signature *sig, void *opaque );
+int keygen_upd_std_prefs( PKT_signature *sig, void *opaque );
+int keygen_add_revkey(PKT_signature *sig, void *opaque);
+int generate_subkeypair( KBNODE pub_keyblock, KBNODE sec_keyblock );
+
+/*-- openfile.c --*/
+int overwrite_filep( const char *fname );
+char *make_outfile_name( const char *iname );
+char *ask_outfile_name( const char *name, size_t namelen );
+int   open_outfile( const char *iname, int mode, IOBUF *a );
+IOBUF open_sigfile( const char *iname, progress_filter_context_t *pfx );
+void try_make_homedir( const char *fname );
+
+/*-- seskey.c --*/
+void make_session_key( DEK *dek );
+MPI encode_session_key( DEK *dek, unsigned nbits );
+MPI encode_md_value( int pubkey_algo,  MD_HANDLE md,
+		     int hash_algo, unsigned nbits, int v3compathack );
+
+/*-- comment.c --*/
+KBNODE make_comment_node( const char *s );
+KBNODE make_mpi_comment_node( const char *s, MPI a );
+
+/*-- import.c --*/
+int parse_import_options(char *str,unsigned int *options);
+void import_keys( char **fnames, int nnames,
+		  void *stats_hd, unsigned int options );
+int import_keys_stream( IOBUF inp,
+			void *stats_hd, unsigned int options );
+void *import_new_stats_handle (void);
+void import_release_stats_handle (void *p);
+void import_print_stats (void *hd);
+
+int collapse_uids( KBNODE *keyblock );
+
+/*-- export.c --*/
+int parse_export_options(char *str,unsigned int *options);
+int export_pubkeys( STRLIST users, unsigned int options );
+int export_pubkeys_stream( IOBUF out, STRLIST users,
+			   KBNODE *keyblock_out, unsigned int options );
+int export_seckeys( STRLIST users );
+int export_secsubkeys( STRLIST users );
+
+/* dearmor.c --*/
+int dearmor_file( const char *fname );
+int enarmor_file( const char *fname );
+
+/*-- revoke.c --*/
+struct revocation_reason_info;
+int gen_revoke( const char *uname );
+int gen_desig_revoke( const char *uname );
+int revocation_reason_build_cb( PKT_signature *sig, void *opaque );
+struct revocation_reason_info *
+		ask_revocation_reason( int key_rev, int cert_rev, int hint );
+void release_revocation_reason_info( struct revocation_reason_info *reason );
+
+/*-- keylist.c --*/
+void public_key_list( STRLIST list );
+void secret_key_list( STRLIST list );
+void reorder_keyblock (KBNODE keyblock);
+void list_keyblock( KBNODE keyblock, int secret, int fpr, void *opaque );
+void print_fingerprint (PKT_public_key *pk, PKT_secret_key *sk, int mode);
+void show_policy_url(PKT_signature *sig,int indent,int mode);
+void show_notation(PKT_signature *sig,int indent,int mode);
+void dump_attribs(const PKT_user_id *uid,
+		  PKT_public_key *pk,PKT_secret_key *sk);
+void set_attrib_fd(int fd);
+void print_seckey_info (PKT_secret_key *sk);
+void print_pubkey_info (PKT_public_key *pk);
+
+/*-- verify.c --*/
+void print_file_status( int status, const char *name, int what );
+int verify_signatures( int nfiles, char **files );
+int verify_files( int nfiles, char **files );
+
+/*-- decrypt.c --*/
+int decrypt_message( const char *filename );
+void decrypt_messages(int nfiles, char **files);
+
+/*-- plaintext.c --*/
+int hash_datafiles( MD_HANDLE md, MD_HANDLE md2,
+		    STRLIST files, const char *sigfilename, int textmode );
+
+/*-- pipemode.c --*/
+void run_in_pipemode (void);
+
+/*-- signal.c --*/
+void init_signals(void);
+void pause_on_sigusr( int which );
+void block_all_signals(void);
+void unblock_all_signals(void);
+
+#endif /*G10_MAIN_H*/