lib/libgss/g_dup_name.c

	g_dup_name.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

/*
 *  routine gss_duplicate_name
 *
 * This routine does not rely on mechanism implementation of this
 * name, but instead uses mechanism specific gss_import_name routine.
 */

#include <mechglueP.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <string.h>
#include <errno.h>

OM_uint32
gss_duplicate_name(minor_status,
        src_name,
        dest_name)
OM_uint32 *minor_status;
const gss_name_t src_name;
gss_name_t *dest_name;
{
        gss_union_name_t src_union, dest_union;
        OM_uint32 major_status = GSS_S_FAILURE;


    if (!minor_status)
        return (GSS_S_CALL_INACCESSIBLE_WRITE);

    *minor_status = 0;

    /* if output_name is NULL, simply return */
    if (dest_name == NULL)
        return (GSS_S_CALL_INACCESSIBLE_WRITE | GSS_S_BAD_NAME);

    *dest_name = 0;

    if (src_name == NULL)
        return (GSS_S_CALL_INACCESSIBLE_READ);

    src_union = (gss_union_name_t)src_name;

    /*
     * First create the union name struct that will hold the external
     * name and the name type.
     */
    dest_union = (gss_union_name_t)malloc(sizeof (gss_union_name_desc));
    if (!dest_union)
        goto allocation_failure;

    dest_union->mech_type = 0;
    dest_union->mech_name = 0;
    dest_union->name_type = 0;
    dest_union->external_name = 0;

    /* Now copy the external representaion */
    if (__gss_create_copy_buffer(src_union->external_name,
                &dest_union->external_name, 0))
        goto allocation_failure;

    if (src_union->name_type != GSS_C_NULL_OID) {
        major_status = generic_gss_copy_oid(minor_status,
                        src_union->name_type,
                        &dest_union->name_type);
        if (major_status != GSS_S_COMPLETE)
            goto allocation_failure;
    }

    /*
     * See if source name is mechanim specific, if so then need to import it
     */
    if (src_union->mech_type) {
        major_status = generic_gss_copy_oid(minor_status,
                            src_union->mech_type,
                            &dest_union->mech_type);
        if (major_status != GSS_S_COMPLETE)
            goto allocation_failure;

        major_status = __gss_import_internal_name(minor_status,
                            dest_union->mech_type,
                            dest_union,
                            &dest_union->mech_name);
        if (major_status != GSS_S_COMPLETE)
            goto allocation_failure;
    }


    *dest_name = (gss_name_t)dest_union;
    return (GSS_S_COMPLETE);

allocation_failure:
    if (dest_union) {
        if (dest_union->external_name) {
            if (dest_union->external_name->value)
                free(dest_union->external_name->value);
                free(dest_union->external_name);
        }
        if (dest_union->name_type)
            (void) generic_gss_release_oid(minor_status,
                            &dest_union->name_type);
        if (dest_union->mech_name)
            (void) __gss_release_internal_name(minor_status,
                        dest_union->mech_type,
                        &dest_union->mech_name);
        if (dest_union->mech_type)
            (void) generic_gss_release_oid(minor_status,
                            &dest_union->mech_type);
        free(dest_union);
    }
    return (major_status);
} /*    gss_duplicate_name  */