mirror of git://git.gnupg.org/gnupg.git
126 lines
2.9 KiB
C
126 lines
2.9 KiB
C
/* pkclist.c
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* Copyright (c) 1997 by Werner Koch (dd9jn)
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*
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* This file is part of G10.
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*
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* G10 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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* G10 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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#include <config.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 <errno.h>
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#include <assert.h>
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#include "options.h"
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#include "packet.h"
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#include "errors.h"
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#include "keydb.h"
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#include "memory.h"
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#include "util.h"
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#include "trustdb.h"
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/****************
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* Check wether we can trust this pkc which has a trustlevel of TRUSTLEVEL
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* Returns: true if we trust.
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*/
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static int
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do_we_trust( PKT_public_cert *pkc, int trustlevel )
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{
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/* Eventuell fragen falls der trustlevel nicht ausreichend ist */
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return 1; /* yes */
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}
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void
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release_pkc_list( PKC_LIST pkc_list )
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{
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PKC_LIST pkc_rover;
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for( ; pkc_list; pkc_list = pkc_rover ) {
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pkc_rover = pkc_list->next;
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free_public_cert( pkc_list->pkc );
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m_free( pkc_list );
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}
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}
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int
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build_pkc_list( STRLIST remusr, PKC_LIST *ret_pkc_list )
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{
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PKC_LIST pkc_list = NULL;
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PKC_LIST pkc_rover = NULL;
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int rc;
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if( !remusr ) { /* ask!!! */
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log_bug("ask for public key nyi\n");
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}
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else {
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for(; remusr; remusr = remusr->next ) {
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PKT_public_cert *pkc;
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pkc = m_alloc_clear( sizeof *pkc );
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if( (rc = get_pubkey_byname( pkc, remusr->d )) ) {
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free_public_cert( pkc ); pkc = NULL;
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log_error("skipped '%s': %s\n", remusr->d, g10_errstr(rc) );
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}
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else if( !(rc=check_pubkey_algo(pkc->pubkey_algo)) ) {
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int trustlevel;
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rc = check_pkc_trust( pkc, &trustlevel );
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if( rc ) {
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free_public_cert( pkc ); pkc = NULL;
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log_error("error checking pkc of '%s': %s\n",
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remusr->d, g10_errstr(rc) );
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}
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else if( do_we_trust( pkc, trustlevel ) ) {
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PKC_LIST r;
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r = m_alloc( sizeof *r );
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r->pkc = pkc; pkc = NULL;
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r->next = pkc_list;
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r->mark = 0;
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pkc_list = r;
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}
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else { /* we don't trust this pkc */
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free_public_cert( pkc ); pkc = NULL;
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}
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}
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else {
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free_public_cert( pkc ); pkc = NULL;
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log_error("skipped '%s': %s\n", remusr->d, g10_errstr(rc) );
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}
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}
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}
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if( !rc && !pkc_list ) {
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log_error("no valid addressees\n");
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rc = G10ERR_NO_USER_ID;
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}
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if( rc )
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release_pkc_list( pkc_list );
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else
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*ret_pkc_list = pkc_list;
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return rc;
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}
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