int
_cdk_keydb_get_pk_byusage( cdk_keydb_hd_t hd, const char * name,
cdk_pkt_pubkey_t* ret_pk, int usage )
{
cdk_kbnode_t knode, node = NULL;
cdk_pkt_pubkey_t pk = NULL;
const char * s;
int rc = 0;
if( !ret_pk || !usage )
return CDK_Inv_Value;
if( !hd )
return CDK_Error_No_Keyring;
rc = cdk_keydb_search_start( hd, CDK_DBSEARCH_AUTO, (char *)name );
if( !rc )
rc = cdk_keydb_search( hd, &knode );
if( rc )
goto leave;
node = keydb_find_byusage( knode, usage, 1 );
if( !node ) {
rc = CDK_Unusable_Key;
goto leave;
}
_cdk_copy_pubkey( &pk, node->pkt->pkt.public_key );
for( node = knode; node; node = node->next ) {
if( node->pkt->pkttype == CDK_PKT_USER_ID ) {
s = node->pkt->pkt.user_id->name;
if( pk && !pk->uid && _cdk_memistr( s, strlen( s ), name ) ) {
_cdk_copy_userid( &pk->uid, node->pkt->pkt.user_id );
break;
}
}
}
cdk_kbnode_release( knode );
leave:
*ret_pk = pk;
return rc;
}
cdk_error_t _cdk_copy_pubkey(cdk_pkt_pubkey_t * dst, cdk_pkt_pubkey_t src)
{
cdk_pkt_pubkey_t k;
int i;
if (!dst || !src)
return CDK_Inv_Value;
*dst = NULL;
k = cdk_calloc(1, sizeof *k);
if (!k)
return CDK_Out_Of_Core;
memcpy(k, src, sizeof *k);
if (src->uid)
_cdk_copy_userid(&k->uid, src->uid);
if (src->prefs)
k->prefs = _cdk_copy_prefs(src->prefs);
for (i = 0; i < cdk_pk_get_npkey(src->pubkey_algo); i++)
k->mpi[i] = _gnutls_mpi_copy(src->mpi[i]);
*dst = k;
return 0;
}
