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![Werner Koch](/assets/img/avatar_default.png)
* g10/keydb.h (GETPASSWORD_FLAG_SYMDECRYPT): New.
(passphrase_to_dek_ext): Remove this obsolete prototype.
* g10/passphrase.c (passphrase_get): Add arg flags. Use new flag
value.
(passphrase_to_dek): Add arg flags and pass it on.
* g10/mainproc.c (proc_symkey_enc): Use new flag.
* sm/decrypt.c (pwri_decrypt): Use "passphrase".
--
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 03f83bcda5
)
Note that we keep on using the term "passphrase" although "password"
would be better. There are however so many occurance of this and
given it is a bike shedding topic we fix that in the PO files.
Signed-off-by: Werner Koch <wk@gnupg.org>
813 lines
16 KiB
C
813 lines
16 KiB
C
/* gpgv.c - The GnuPG signature verify utility
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* Copyright (C) 1998-2020 Free Software Foundation, Inc.
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* Copyright (C) 1997-2019 Werner Koch
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* Copyright (C) 2015-2020 g10 Code GmbH
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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 3 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, see <https://www.gnu.org/licenses/>.
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#include <config.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <unistd.h>
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#ifdef HAVE_DOSISH_SYSTEM
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#include <fcntl.h> /* for setmode() */
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#endif
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#ifdef HAVE_LIBREADLINE
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#define GNUPG_LIBREADLINE_H_INCLUDED
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#include <readline/readline.h>
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#endif
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#define INCLUDED_BY_MAIN_MODULE 1
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#include "gpg.h"
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#include "../common/util.h"
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#include "packet.h"
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#include "../common/iobuf.h"
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#include "main.h"
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#include "options.h"
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#include "keydb.h"
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#include "trustdb.h"
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#include "filter.h"
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#include "../common/ttyio.h"
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#include "../common/i18n.h"
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#include "../common/sysutils.h"
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#include "../common/status.h"
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#include "call-agent.h"
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#include "../common/init.h"
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enum cmd_and_opt_values {
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aNull = 0,
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oQuiet = 'q',
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oVerbose = 'v',
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oOutput = 'o',
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oBatch = 500,
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oKeyring,
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oIgnoreTimeConflict,
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oStatusFD,
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oLoggerFD,
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oLoggerFile,
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oHomedir,
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oWeakDigest,
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oEnableSpecialFilenames,
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oDebug,
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aTest
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};
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static gpgrt_opt_t opts[] = {
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ARGPARSE_group (300, N_("@\nOptions:\n ")),
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ARGPARSE_s_n (oVerbose, "verbose", N_("verbose")),
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ARGPARSE_s_n (oQuiet, "quiet", N_("be somewhat more quiet")),
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ARGPARSE_s_s (oKeyring, "keyring",
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N_("|FILE|take the keys from the keyring FILE")),
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ARGPARSE_s_s (oOutput, "output", N_("|FILE|write output to FILE")),
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ARGPARSE_s_n (oIgnoreTimeConflict, "ignore-time-conflict",
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N_("make timestamp conflicts only a warning")),
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ARGPARSE_s_i (oStatusFD, "status-fd",
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N_("|FD|write status info to this FD")),
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ARGPARSE_s_i (oLoggerFD, "logger-fd", "@"),
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ARGPARSE_s_s (oLoggerFile, "log-file", "@"),
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ARGPARSE_s_s (oHomedir, "homedir", "@"),
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ARGPARSE_s_s (oWeakDigest, "weak-digest",
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N_("|ALGO|reject signatures made with ALGO")),
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ARGPARSE_s_n (oEnableSpecialFilenames, "enable-special-filenames", "@"),
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ARGPARSE_s_s (oDebug, "debug", "@"),
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ARGPARSE_end ()
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};
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/* The list of supported debug flags. */
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static struct debug_flags_s debug_flags [] =
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{
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{ DBG_PACKET_VALUE , "packet" },
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{ DBG_MPI_VALUE , "mpi" },
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{ DBG_CRYPTO_VALUE , "crypto" },
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{ DBG_FILTER_VALUE , "filter" },
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{ DBG_IOBUF_VALUE , "iobuf" },
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{ DBG_MEMORY_VALUE , "memory" },
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{ DBG_CACHE_VALUE , "cache" },
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{ DBG_MEMSTAT_VALUE, "memstat" },
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{ DBG_TRUST_VALUE , "trust" },
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{ DBG_HASHING_VALUE, "hashing" },
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{ DBG_IPC_VALUE , "ipc" },
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{ DBG_CLOCK_VALUE , "clock" },
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{ DBG_LOOKUP_VALUE , "lookup" },
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{ DBG_EXTPROG_VALUE, "extprog" },
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{ 0, NULL }
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};
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int g10_errors_seen = 0;
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static char *
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make_libversion (const char *libname, const char *(*getfnc)(const char*))
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{
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const char *s;
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char *result;
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s = getfnc (NULL);
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result = xmalloc (strlen (libname) + 1 + strlen (s) + 1);
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strcpy (stpcpy (stpcpy (result, libname), " "), s);
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return result;
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}
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static const char *
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my_strusage( int level )
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{
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static char *ver_gcry;
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const char *p;
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switch (level)
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{
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case 9: p = "GPL-3.0-or-later"; break;
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case 11: p = "@GPG@v (GnuPG)";
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break;
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case 13: p = VERSION; break;
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case 14: p = GNUPG_DEF_COPYRIGHT_LINE; break;
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case 17: p = PRINTABLE_OS_NAME; break;
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case 19: p = _("Please report bugs to <@EMAIL@>.\n"); break;
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case 1:
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case 40: p = _("Usage: gpgv [options] [files] (-h for help)");
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break;
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case 41: p = _("Syntax: gpgv [options] [files]\n"
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"Check signatures against known trusted keys\n");
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break;
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case 20:
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if (!ver_gcry)
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ver_gcry = make_libversion ("libgcrypt", gcry_check_version);
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p = ver_gcry;
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break;
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default: p = NULL;
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}
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return p;
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}
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int
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main( int argc, char **argv )
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{
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gpgrt_argparse_t pargs;
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int rc=0;
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strlist_t sl;
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strlist_t nrings = NULL;
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ctrl_t ctrl;
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early_system_init ();
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gpgrt_set_strusage (my_strusage);
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log_set_prefix ("gpgv", GPGRT_LOG_WITH_PREFIX);
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/* Make sure that our subsystems are ready. */
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i18n_init();
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init_common_subsystems (&argc, &argv);
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gcry_control (GCRYCTL_DISABLE_SECMEM, 0);
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gnupg_init_signals (0, NULL);
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opt.command_fd = -1; /* no command fd */
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opt.keyserver_options.options |= KEYSERVER_AUTO_KEY_RETRIEVE;
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opt.trust_model = TM_ALWAYS;
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opt.no_sig_cache = 1;
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opt.flags.require_cross_cert = 1;
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opt.batch = 1;
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opt.answer_yes = 1;
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opt.weak_digests = NULL;
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tty_no_terminal(1);
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tty_batchmode(1);
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dotlock_disable ();
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gcry_control (GCRYCTL_INITIALIZATION_FINISHED, 0);
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additional_weak_digest("MD5");
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gnupg_initialize_compliance (GNUPG_MODULE_NAME_GPG);
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pargs.argc = &argc;
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pargs.argv = &argv;
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pargs.flags= ARGPARSE_FLAG_KEEP;
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while (gpgrt_argparser (&pargs, opts, NULL))
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{
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switch (pargs.r_opt)
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{
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case ARGPARSE_CONFFILE: break;
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case oQuiet: opt.quiet = 1; break;
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case oVerbose:
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opt.verbose++;
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opt.list_sigs=1;
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gcry_control (GCRYCTL_SET_VERBOSITY, (int)opt.verbose);
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break;
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case oDebug:
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if (parse_debug_flag (pargs.r.ret_str, &opt.debug, debug_flags))
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{
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pargs.r_opt = ARGPARSE_INVALID_ARG;
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pargs.err = ARGPARSE_PRINT_ERROR;
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}
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break;
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case oKeyring: append_to_strlist( &nrings, pargs.r.ret_str); break;
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case oOutput: opt.outfile = pargs.r.ret_str; break;
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case oStatusFD:
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set_status_fd (translate_sys2libc_fd_int (pargs.r.ret_int, 1));
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break;
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case oLoggerFD:
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log_set_fd (translate_sys2libc_fd_int (pargs.r.ret_int, 1));
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break;
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case oLoggerFile:
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log_set_file (pargs.r.ret_str);
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log_set_prefix (NULL, (GPGRT_LOG_WITH_PREFIX
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| GPGRT_LOG_WITH_TIME
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| GPGRT_LOG_WITH_PID) );
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break;
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case oHomedir: gnupg_set_homedir (pargs.r.ret_str); break;
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case oWeakDigest:
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additional_weak_digest(pargs.r.ret_str);
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break;
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case oIgnoreTimeConflict: opt.ignore_time_conflict = 1; break;
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case oEnableSpecialFilenames:
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enable_special_filenames ();
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break;
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default : pargs.err = ARGPARSE_PRINT_ERROR; break;
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}
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}
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gpgrt_argparse (NULL, &pargs, NULL); /* Release internal state. */
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if (log_get_errorcount (0))
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g10_exit(2);
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if (opt.verbose > 1)
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set_packet_list_mode(1);
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/* Note: We open all keyrings in read-only mode. */
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if (!nrings) /* No keyring given: use default one. */
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keydb_add_resource ("trustedkeys" EXTSEP_S "kbx",
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(KEYDB_RESOURCE_FLAG_READONLY
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|KEYDB_RESOURCE_FLAG_GPGVDEF));
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for (sl = nrings; sl; sl = sl->next)
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keydb_add_resource (sl->d, KEYDB_RESOURCE_FLAG_READONLY);
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FREE_STRLIST (nrings);
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ctrl = xcalloc (1, sizeof *ctrl);
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if ((rc = verify_signatures (ctrl, argc, argv)))
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log_error("verify signatures failed: %s\n", gpg_strerror (rc) );
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keydb_release (ctrl->cached_getkey_kdb);
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xfree (ctrl);
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/* cleanup */
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g10_exit (0);
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return 8; /*NOTREACHED*/
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}
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void
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g10_exit( int rc )
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{
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rc = rc? rc : log_get_errorcount(0)? 2 : g10_errors_seen? 1 : 0;
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exit(rc );
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}
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/* Stub:
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* We have to override the trustcheck from pkclist.c because
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* this utility assumes that all keys in the keyring are trustworthy
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*/
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gpg_error_t
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check_signatures_trust (ctrl_t ctrl, kbnode_t kblock,
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PKT_public_key *pk, PKT_signature *sig)
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{
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(void)ctrl;
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(void)kblock;
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(void)pk;
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(void)sig;
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return 0;
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}
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void
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read_trust_options (ctrl_t ctrl,
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byte *trust_model, ulong *created, ulong *nextcheck,
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byte *marginals, byte *completes, byte *cert_depth,
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byte *min_cert_level)
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{
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(void)ctrl;
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(void)trust_model;
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(void)created;
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(void)nextcheck;
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(void)marginals;
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(void)completes;
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(void)cert_depth;
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(void)min_cert_level;
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}
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/* Stub:
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* We don't have the trustdb , so we have to provide some stub functions
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* instead
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*/
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int
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cache_disabled_value (ctrl_t ctrl, PKT_public_key *pk)
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{
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(void)ctrl;
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(void)pk;
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return 0;
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}
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void
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check_trustdb_stale (ctrl_t ctrl)
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{
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(void)ctrl;
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}
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int
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get_validity_info (ctrl_t ctrl, kbnode_t kb, PKT_public_key *pk,
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PKT_user_id *uid)
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{
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(void)ctrl;
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(void)kb;
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(void)pk;
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(void)uid;
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return '?';
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}
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unsigned int
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get_validity (ctrl_t ctrl, kbnode_t kb, PKT_public_key *pk, PKT_user_id *uid,
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PKT_signature *sig, int may_ask)
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{
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(void)ctrl;
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(void)kb;
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(void)pk;
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(void)uid;
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(void)sig;
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(void)may_ask;
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return 0;
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}
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const char *
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trust_value_to_string (unsigned int value)
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{
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(void)value;
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return "err";
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}
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const char *
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uid_trust_string_fixed (ctrl_t ctrl, PKT_public_key *key, PKT_user_id *uid)
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{
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(void)ctrl;
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(void)key;
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(void)uid;
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return "err";
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}
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int
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get_ownertrust_info (ctrl_t ctrl, PKT_public_key *pk, int no_create)
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{
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(void)ctrl;
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(void)pk;
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(void)no_create;
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return '?';
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}
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unsigned int
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get_ownertrust (ctrl_t ctrl, PKT_public_key *pk)
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{
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(void)ctrl;
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(void)pk;
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return TRUST_UNKNOWN;
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}
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/* Stubs:
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* Because we only work with trusted keys, it does not make sense to
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* get them from a keyserver
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*/
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struct keyserver_spec *
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keyserver_match (struct keyserver_spec *spec)
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{
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(void)spec;
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return NULL;
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}
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int
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keyserver_any_configured (ctrl_t ctrl)
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{
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(void)ctrl;
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return 0;
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}
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int
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keyserver_import_keyid (u32 *keyid, void *dummy, unsigned int flags)
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{
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(void)keyid;
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(void)dummy;
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(void)flags;
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return -1;
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}
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int
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keyserver_import_fprint (ctrl_t ctrl, const byte *fprint,size_t fprint_len,
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struct keyserver_spec *keyserver, unsigned int flags)
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{
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(void)ctrl;
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(void)fprint;
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(void)fprint_len;
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(void)keyserver;
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(void)flags;
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return -1;
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}
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int
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keyserver_import_fprint_ntds (ctrl_t ctrl,
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const byte *fprint, size_t fprint_len)
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{
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(void)ctrl;
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(void)fprint;
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(void)fprint_len;
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return -1;
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}
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int
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keyserver_import_cert (const char *name)
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{
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(void)name;
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return -1;
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}
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gpg_error_t
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keyserver_import_wkd (ctrl_t ctrl, const char *name, unsigned int flags,
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unsigned char **fpr, size_t *fpr_len)
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{
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(void)ctrl;
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(void)name;
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(void)flags;
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(void)fpr;
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(void)fpr_len;
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return GPG_ERR_BUG;
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}
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int
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keyserver_import_mbox (const char *name,struct keyserver_spec *spec)
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{
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(void)name;
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(void)spec;
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return -1;
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}
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int
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keyserver_import_ntds (ctrl_t ctrl, const char *mbox,
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unsigned char **fpr, size_t *fprlen)
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{
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(void)ctrl;
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(void)mbox;
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(void)fpr;
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(void)fprlen;
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return -1;
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}
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int
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keyserver_import_ldap (const char *name)
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{
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(void)name;
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return -1;
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}
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gpg_error_t
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read_key_from_file_or_buffer (ctrl_t ctrl, const char *fname,
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const void *buffer, size_t buflen,
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kbnode_t *r_keyblock)
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{
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(void)ctrl;
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(void)fname;
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(void)buffer;
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(void)buflen;
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(void)r_keyblock;
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return -1;
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}
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gpg_error_t
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import_included_key_block (ctrl_t ctrl, kbnode_t keyblock)
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{
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(void)ctrl;
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(void)keyblock;
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return -1;
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}
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/* Stub:
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* No encryption here but mainproc links to these functions.
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*/
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gpg_error_t
|
|
get_session_key (ctrl_t ctrl, struct pubkey_enc_list *k, DEK *dek)
|
|
{
|
|
(void)ctrl;
|
|
(void)k;
|
|
(void)dek;
|
|
return GPG_ERR_GENERAL;
|
|
}
|
|
|
|
/* Stub: */
|
|
gpg_error_t
|
|
get_override_session_key (DEK *dek, const char *string)
|
|
{
|
|
(void)dek;
|
|
(void)string;
|
|
return GPG_ERR_GENERAL;
|
|
}
|
|
|
|
/* Stub: */
|
|
int
|
|
decrypt_data (ctrl_t ctrl, void *procctx, PKT_encrypted *ed, DEK *dek)
|
|
{
|
|
(void)ctrl;
|
|
(void)procctx;
|
|
(void)ed;
|
|
(void)dek;
|
|
return GPG_ERR_GENERAL;
|
|
}
|
|
|
|
|
|
/* Stub:
|
|
* No interactive commands, so we don't need the helptexts
|
|
*/
|
|
void
|
|
display_online_help (const char *keyword)
|
|
{
|
|
(void)keyword;
|
|
}
|
|
|
|
/* Stub:
|
|
* We don't use secret keys, but getkey.c links to this
|
|
*/
|
|
int
|
|
check_secret_key (PKT_public_key *pk, int n)
|
|
{
|
|
(void)pk;
|
|
(void)n;
|
|
return GPG_ERR_GENERAL;
|
|
}
|
|
|
|
/* Stub:
|
|
* No secret key, so no passphrase needed
|
|
*/
|
|
DEK *
|
|
passphrase_to_dek (int cipher_algo, STRING2KEY *s2k, int create, int nocache,
|
|
const char *tmp, unsigned int flags, int *canceled)
|
|
{
|
|
(void)cipher_algo;
|
|
(void)s2k;
|
|
(void)create;
|
|
(void)nocache;
|
|
(void)tmp;
|
|
(void)flags;
|
|
|
|
if (canceled)
|
|
*canceled = 0;
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
passphrase_clear_cache (const char *cacheid)
|
|
{
|
|
(void)cacheid;
|
|
}
|
|
|
|
struct keyserver_spec *
|
|
parse_preferred_keyserver(PKT_signature *sig)
|
|
{
|
|
(void)sig;
|
|
return NULL;
|
|
}
|
|
|
|
struct keyserver_spec *
|
|
parse_keyserver_uri (const char *uri, int require_scheme,
|
|
const char *configname, unsigned int configlineno)
|
|
{
|
|
(void)uri;
|
|
(void)require_scheme;
|
|
(void)configname;
|
|
(void)configlineno;
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
free_keyserver_spec (struct keyserver_spec *keyserver)
|
|
{
|
|
(void)keyserver;
|
|
}
|
|
|
|
/* Stubs to avoid linking to photoid.c */
|
|
void
|
|
show_photos (const struct user_attribute *attrs, int count, PKT_public_key *pk)
|
|
{
|
|
(void)attrs;
|
|
(void)count;
|
|
(void)pk;
|
|
}
|
|
|
|
int
|
|
parse_image_header (const struct user_attribute *attr, byte *type, u32 *len)
|
|
{
|
|
(void)attr;
|
|
(void)type;
|
|
(void)len;
|
|
return 0;
|
|
}
|
|
|
|
char *
|
|
image_type_to_string (byte type, int string)
|
|
{
|
|
(void)type;
|
|
(void)string;
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef ENABLE_CARD_SUPPORT
|
|
int
|
|
agent_scd_getattr (const char *name, struct agent_card_info_s *info)
|
|
{
|
|
(void)name;
|
|
(void)info;
|
|
return 0;
|
|
}
|
|
#endif /* ENABLE_CARD_SUPPORT */
|
|
|
|
/* We do not do any locking, so use these stubs here */
|
|
void
|
|
dotlock_disable (void)
|
|
{
|
|
}
|
|
|
|
dotlock_t
|
|
dotlock_create (const char *file_to_lock, unsigned int flags)
|
|
{
|
|
(void)file_to_lock;
|
|
(void)flags;
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
dotlock_destroy (dotlock_t h)
|
|
{
|
|
(void)h;
|
|
}
|
|
|
|
int
|
|
dotlock_take (dotlock_t h, long timeout)
|
|
{
|
|
(void)h;
|
|
(void)timeout;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
dotlock_release (dotlock_t h)
|
|
{
|
|
(void)h;
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
dotlock_remove_lockfiles (void)
|
|
{
|
|
}
|
|
|
|
int
|
|
agent_probe_secret_key (ctrl_t ctrl, PKT_public_key *pk)
|
|
{
|
|
(void)ctrl;
|
|
(void)pk;
|
|
return 0;
|
|
}
|
|
|
|
gpg_error_t
|
|
agent_probe_any_secret_key (ctrl_t ctrl, kbnode_t keyblock)
|
|
{
|
|
(void)ctrl;
|
|
(void)keyblock;
|
|
return gpg_error (GPG_ERR_NO_SECKEY);
|
|
}
|
|
|
|
gpg_error_t
|
|
agent_get_keyinfo (ctrl_t ctrl, const char *hexkeygrip,
|
|
char **r_serialno, int *r_cleartext)
|
|
{
|
|
(void)ctrl;
|
|
(void)hexkeygrip;
|
|
(void)r_cleartext;
|
|
*r_serialno = NULL;
|
|
return gpg_error (GPG_ERR_NO_SECKEY);
|
|
}
|
|
|
|
gpg_error_t
|
|
export_pubkey_buffer (ctrl_t ctrl, const char *keyspec, unsigned int options,
|
|
const void *prefix, size_t prefixlen,
|
|
export_stats_t stats,
|
|
kbnode_t *r_keyblock, void **r_data, size_t *r_datalen)
|
|
{
|
|
(void)ctrl;
|
|
(void)keyspec;
|
|
(void)options;
|
|
(void)prefix;
|
|
(void)prefixlen;
|
|
(void)stats;
|
|
|
|
*r_keyblock = NULL;
|
|
*r_data = NULL;
|
|
*r_datalen = 0;
|
|
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
|
|
}
|
|
|
|
gpg_error_t
|
|
tofu_write_tfs_record (ctrl_t ctrl, estream_t fp,
|
|
PKT_public_key *pk, const char *user_id)
|
|
{
|
|
(void)ctrl;
|
|
(void)fp;
|
|
(void)pk;
|
|
(void)user_id;
|
|
return gpg_error (GPG_ERR_GENERAL);
|
|
}
|
|
|
|
gpg_error_t
|
|
tofu_get_policy (ctrl_t ctrl, PKT_public_key *pk, PKT_user_id *user_id,
|
|
enum tofu_policy *policy)
|
|
{
|
|
(void)ctrl;
|
|
(void)pk;
|
|
(void)user_id;
|
|
(void)policy;
|
|
return gpg_error (GPG_ERR_GENERAL);
|
|
}
|
|
|
|
const char *
|
|
tofu_policy_str (enum tofu_policy policy)
|
|
{
|
|
(void)policy;
|
|
|
|
return "unknown";
|
|
}
|
|
|
|
void
|
|
tofu_begin_batch_update (ctrl_t ctrl)
|
|
{
|
|
(void)ctrl;
|
|
}
|
|
|
|
void
|
|
tofu_end_batch_update (ctrl_t ctrl)
|
|
{
|
|
(void)ctrl;
|
|
}
|
|
|
|
gpg_error_t
|
|
tofu_notice_key_changed (ctrl_t ctrl, kbnode_t kb)
|
|
{
|
|
(void) ctrl;
|
|
(void) kb;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
get_revocation_reason (PKT_signature *sig, char **r_reason,
|
|
char **r_comment, size_t *r_commentlen)
|
|
{
|
|
(void)sig;
|
|
(void)r_commentlen;
|
|
|
|
if (r_reason)
|
|
*r_reason = NULL;
|
|
if (r_comment)
|
|
*r_comment = NULL;
|
|
return 0;
|
|
}
|