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/* --- BEGIN COPYRIGHT BLOCK ---
 * This program 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; version 2 of the License.
 * 
 * This program 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 * 
 * Copyright (C) 2007 Red Hat, Inc.
 * All rights reserved.
 * --- END COPYRIGHT BLOCK ---
 */

#include "tkstool.h"

SECStatus
TKS_FindSymKey( PK11SlotInfo *slot,
                char *keyname,
                void *pwdata )
{
    char       *name       = NULL;
    int         count      = 0;
    int         keys_found = 0;
    PK11SymKey *symKey     = NULL;
    PK11SymKey *nextSymKey = NULL;
    SECStatus   rv         = SECFailure;

    if( PK11_NeedLogin( /* slot */  slot ) ) {
        PK11_Authenticate( 
        /* slot       */   slot,
        /* load certs */   PR_TRUE,
        /* wincx      */   pwdata );
    }

    /* Initialize the symmetric key list. */
    symKey = PK11_ListFixedKeysInSlot( 
             /* slot     */            slot,
             /* nickname */            NULL,
             /* wincx    */            ( void *) pwdata );

    /* Iterate through the symmetric key list. */
	while( symKey != NULL ) {
        name = PK11_GetSymKeyNickname( /* symmetric key */  symKey );
        if( name != NULL ) {
            if( keyname != NULL ) {
                if( PL_strcmp( keyname, name ) == 0 ) {
                    keys_found++;
                    rv = SECSuccess;
                }
            }
        }

		nextSymKey = PK11_GetNextSymKey( /* symmetric key */  symKey );
        PK11_FreeSymKey( /* symmetric key */  symKey );
        symKey = nextSymKey;
		
        count++;
    }

    /* case 1:  the token is empty */
    if( count == 0 ) {
        /* the specified token is empty */
        rv = SECFailure;
    }

    /* case 2:  the specified key is not on this token */
    if( ( keyname != NULL ) &&
        ( keys_found == 0 ) ) {
        /* the key called "keyname" could not be found */
        rv = SECFailure;
    }

    return rv;
}