mirror of
git://git.gnupg.org/gnupg.git
synced 2024-12-23 10:29:58 +01:00
138 lines
3.5 KiB
C
138 lines
3.5 KiB
C
/* skclist.c
|
|
* Copyright (C) 1998, 1999, 2000 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 <gcrypt.h>
|
|
#include "options.h"
|
|
#include "packet.h"
|
|
#include "errors.h"
|
|
#include "keydb.h"
|
|
#include "util.h"
|
|
#include "i18n.h"
|
|
#include "main.h"
|
|
|
|
|
|
void
|
|
release_sk_list( SK_LIST sk_list )
|
|
{
|
|
SK_LIST sk_rover;
|
|
|
|
for( ; sk_list; sk_list = sk_rover ) {
|
|
sk_rover = sk_list->next;
|
|
free_secret_key( sk_list->sk );
|
|
gcry_free( sk_list );
|
|
}
|
|
}
|
|
|
|
|
|
int
|
|
build_sk_list( STRLIST locusr, SK_LIST *ret_sk_list, int unlock,
|
|
unsigned int use )
|
|
{
|
|
SK_LIST sk_list = NULL;
|
|
int rc;
|
|
|
|
if( !locusr ) { /* use the default one */
|
|
PKT_secret_key *sk;
|
|
|
|
sk = gcry_xcalloc( 1, sizeof *sk );
|
|
sk->req_usage = use;
|
|
if( (rc = get_seckey_byname( NULL, sk, NULL, unlock, NULL )) ) {
|
|
free_secret_key( sk ); sk = NULL;
|
|
log_error("no default secret key: %s\n", gpg_errstr(rc) );
|
|
}
|
|
else if( !(rc=openpgp_pk_test_algo(sk->pubkey_algo,
|
|
sk->pubkey_usage)) ) {
|
|
SK_LIST r;
|
|
|
|
if( sk->version == 4 && (sk->pubkey_usage & GCRY_PK_USAGE_SIGN )
|
|
&& sk->pubkey_algo == GCRY_PK_ELG_E ) {
|
|
log_info("this is a PGP generated "
|
|
"ElGamal key which is NOT secure for signatures!\n");
|
|
free_secret_key( sk ); sk = NULL;
|
|
}
|
|
else {
|
|
r = gcry_xmalloc( sizeof *r );
|
|
r->sk = sk; sk = NULL;
|
|
r->next = sk_list;
|
|
r->mark = 0;
|
|
sk_list = r;
|
|
}
|
|
}
|
|
else {
|
|
free_secret_key( sk ); sk = NULL;
|
|
log_error("invalid default secret key: %s\n", gpg_errstr(rc) );
|
|
}
|
|
}
|
|
else {
|
|
for(; locusr; locusr = locusr->next ) {
|
|
PKT_secret_key *sk;
|
|
|
|
sk = gcry_xcalloc( 1, sizeof *sk );
|
|
sk->req_usage = use;
|
|
if( (rc = get_seckey_byname( NULL, sk, locusr->d, unlock, NULL))) {
|
|
free_secret_key( sk ); sk = NULL;
|
|
log_error(_("skipped `%s': %s\n"), locusr->d, gpg_errstr(rc) );
|
|
}
|
|
else if( !(rc=openpgp_pk_test_algo(sk->pubkey_algo,
|
|
sk->pubkey_usage)) ) {
|
|
SK_LIST r;
|
|
if( sk->version == 4 && (sk->pubkey_usage & GCRY_PK_USAGE_SIGN)
|
|
&& sk->pubkey_algo == GCRY_PK_ELG_E ) {
|
|
log_info(_("skipped `%s': this is a PGP generated "
|
|
"ElGamal key which is not secure for signatures!\n"),
|
|
locusr->d );
|
|
free_secret_key( sk ); sk = NULL;
|
|
}
|
|
else {
|
|
r = gcry_xmalloc( sizeof *r );
|
|
r->sk = sk; sk = NULL;
|
|
r->next = sk_list;
|
|
r->mark = 0;
|
|
sk_list = r;
|
|
}
|
|
}
|
|
else {
|
|
free_secret_key( sk ); sk = NULL;
|
|
log_error("skipped `%s': %s\n", locusr->d, gpg_errstr(rc) );
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
if( !rc && !sk_list ) {
|
|
log_error("no valid signators\n");
|
|
rc = GPGERR_NO_USER_ID;
|
|
}
|
|
|
|
if( rc )
|
|
release_sk_list( sk_list );
|
|
else
|
|
*ret_sk_list = sk_list;
|
|
return rc;
|
|
}
|
|
|