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/* decrypt.c - verify signed data
* Copyright (C) 1998 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
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <assert.h>
#include "options.h"
#include "packet.h"
#include "errors.h"
#include "iobuf.h"
#include "keydb.h"
#include <gcrypt.h>
#include "util.h"
#include "main.h"
#include "i18n.h"
/****************
* Assume that the input is an encrypted message and decrypt
* (and if signed, verify the signature on) it.
* This command differs from the default operation, as it never
* writes to the filename which is included in the file and it
* rejects files which don't begin with an encrypted message.
*/
int
decrypt_message( const char *filename )
{
IOBUF fp;
armor_filter_context_t afx;
int rc;
int no_out=0;
/* open the message file */
fp = iobuf_open(filename);
if( !fp ) {
log_error(_("can't open `%s'\n"), print_fname_stdin(filename));
return G10ERR_OPEN_FILE;
}
if( !opt.no_armor ) {
if( use_armor_filter( fp ) ) {
memset( &afx, 0, sizeof afx);
iobuf_push_filter( fp, armor_filter, &afx );
}
}
if( !opt.outfile ) {
no_out = 1;
opt.outfile = "-";
}
rc = proc_encryption_packets( NULL, fp );
if( no_out )
opt.outfile = NULL;
iobuf_close(fp);
return rc;
}
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