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/* $Copyright:
*
* Copyright 2004-2006 by the Massachusetts Institute of Technology.
*
* All rights reserved.
*
* Export of this software from the United States of America may require a
* specific license from the United States Government. It is the
* responsibility of any person or organization contemplating export to
* obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and distribute
* this software and its documentation for any purpose and without fee is
* hereby granted, provided that the above copyright notice appear in all
* copies and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of M.I.T. not be
* used in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission. Furthermore if you
* modify this software you must label your software as modified software
* and not distribute it in such a fashion that it might be confused with
* the original MIT software. M.I.T. makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* Individual source code files are copyright MIT, Cygnus Support,
* OpenVision, Oracle, Sun Soft, FundsXpress, and others.
*
* Project Athena, Athena, Athena MUSE, Discuss, Hesiod, Kerberos, Moira,
* and Zephyr are trademarks of the Massachusetts Institute of Technology
* (MIT). No commercial use of these trademarks may be made without prior
* written permission of MIT.
*
* "Commercial use" means use of a name in a product or other for-profit
* manner. It does NOT prevent a commercial firm from referring to the MIT
* trademarks in order to convey information (although in doing so,
* recognition of their trademark status should be given).
* $
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <CredentialsCache.h>
#include "ccache.h"
#include "ccache_iterator.h"
#include "context.h"
#include "cc_rpc.h"
#include "msg.h"
#include "msg_headers.h"
/*! \fn cc_initialize
* \brief A function that initializes a ccapi context for the caller.
* \param[out] outContext a cc_context_t pointer to which is assigned the newly created context upon success.
* \param[in] inVersion a cc_int32 that specifies the
*/
CCACHE_API cc_int32
cc_initialize ( cc_context_t* outContext,
cc_int32 inVersion,
cc_int32* outSupportedVersion,
char const** outVendor)
{
static char vendor[128] = "";
cc_msg_t *request = NULL;
ccmsg_init_t *request_header;
cc_msg_t *response = NULL;
cc_uint32 type;
ccmsg_init_resp_t *response_header;
cc_int32 code;
if ((inVersion != ccapi_version_2) &&
(inVersion != ccapi_version_3) &&
(inVersion != ccapi_version_4) &&
(inVersion != ccapi_version_5) &&
(inVersion != ccapi_version_6)) {
if (outSupportedVersion != NULL) {
*outSupportedVersion = ccapi_version_6;
}
return ccErrBadAPIVersion;
}
request_header = (ccmsg_init_t*)malloc(sizeof(ccmsg_init_t));
if (request_header == NULL)
return ccErrNoMem;
/* If the version number is 2, the caller will be passing
* the structure into the v2 compatibility functions which
* in turn will call the v6 functions. Set the version to
* ccapi_version_max since that is what the compatibility
* functions will be expecting.
*/
if (inVersion == ccapi_version_2)
inVersion = ccapi_version_max;
/* Construct the request */
request_header->in_version = htonl(inVersion);
code = cci_msg_new(ccmsg_INIT, &request);
if (code != ccNoError)
goto cleanup;
code = cci_msg_add_header(request, request_header, sizeof(ccmsg_init_t));
if (code != ccNoError)
goto cleanup;
request_header = NULL;
code = cci_perform_rpc(request, &response);
if (code != ccNoError)
goto cleanup;
type = ntohl(response->type);
if (type == ccmsg_NACK) {
ccmsg_nack_t * nack_header = (ccmsg_nack_t *)response->header;
code = ntohl(nack_header->err_code);
} else if (type == ccmsg_ACK) {
response_header = (ccmsg_init_resp_t *)response->header;
*outSupportedVersion = ntohl(response_header->out_version);
code = cc_int_context_new(outContext, ntohll(response_header->out_ctx), ntohl(response_header->out_version));
if (!vendor[0]) {
char * string;
code = cci_msg_retrieve_blob(response, ntohl(response_header->vendor_offset), ntohl(response_header->vendor_length), &string);
strncpy(vendor, string, sizeof(vendor)-1);
vendor[sizeof(vendor)-1] = '\0';
free(string);
}
*outVendor = vendor;
code = ccNoError;
} else {
code = ccErrBadInternalMessage;
}
cleanup:
if (request_header)
free(request_header);
if (request)
cci_msg_destroy(request);
if (response)
cci_msg_destroy(response);
return code;
}
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