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/*
* Copyright 1993 by OpenVision Technologies, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appears in all copies and
* that both that copyright notice and this permission notice appear in
* supporting documentation, and that the name of OpenVision not be used
* in advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. OpenVision makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
* OPENVISION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL OPENVISION BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/*
* functions to validate name, credential, and context handles
*/
#include "gssapiP_generic.h"
#include <sys/types.h>
#include <sys/file.h>
#include <fcntl.h>
#include <limits.h>
#include <db.h>
#define V_NAME 1
#define V_CRED_ID 2
#define V_CTX_ID 3
typedef struct _vkey {
int type;
void *ptr;
} vkey;
static const int one = 1;
static const DBT dbtone = { (void *) &one, sizeof(one) };
/* All these functions return 0 on failure, and non-zero on success */
static int g_save(DB **vdb, int type, void *ptr)
{
vkey vk;
DBT key;
if (!*vdb)
*vdb = dbopen(NULL, O_CREAT|O_RDWR, O_CREAT|O_RDWR, DB_HASH, NULL);
vk.type = type;
vk.ptr = ptr;
key.data = &vk;
key.size = sizeof(vk);
return((*((*vdb)->put))(*vdb, &key, &dbtone, 0) == 0);
}
static int g_validate(DB **vdb, int type, void *ptr)
{
vkey vk;
DBT key, value;
if (!*vdb)
return(0);
vk.type = type;
vk.ptr = ptr;
key.data = &vk;
key.size = sizeof(vk);
if ((*((*vdb)->get))(*vdb, &key, &value, 0))
return(0);
return((value.size == sizeof(one)) &&
(*((int *) value.data) == one));
}
static int g_delete(DB **vdb, int type, void *ptr)
{
vkey vk;
DBT key;
if (!*vdb)
return(0);
vk.type = type;
vk.ptr = ptr;
key.data = &vk;
key.size = sizeof(vk);
return((*((*vdb)->del))(*vdb, &key, 0) == 0);
}
/* functions for each type */
/* save */
int g_save_name(void **vdb, gss_name_t *name)
{
return(g_save((DB **) vdb, V_NAME, (void *) name));
}
int g_save_cred_id(void **vdb, gss_cred_id_t *cred)
{
return(g_save((DB **) vdb, V_CRED_ID, (void *) cred));
}
int g_save_ctx_id(void **vdb, gss_ctx_id_t *ctx)
{
return(g_save((DB **) vdb, V_CTX_ID, (void *) ctx));
}
/* validate */
int g_validate_name(void **vdb, gss_name_t *name)
{
return(g_validate((DB **) vdb, V_NAME, (void *) name));
}
int g_validate_cred_id(void **vdb, gss_cred_id_t *cred)
{
return(g_validate((DB **) vdb, V_CRED_ID, (void *) cred));
}
int g_validate_ctx_id(void **vdb, gss_ctx_id_t *ctx)
{
return(g_validate((DB **) vdb, V_CTX_ID, (void *) ctx));
}
/* delete */
int g_delete_name(void **vdb, gss_name_t *name)
{
return(g_delete((DB **) vdb, V_NAME, (void *) name));
}
int g_delete_cred_id(void **vdb, gss_cred_id_t *cred)
{
return(g_delete((DB **) vdb, V_CRED_ID, (void *) cred));
}
int g_delete_ctx_id(void **vdb, gss_ctx_id_t *ctx)
{
return(g_delete((DB **) vdb, V_CTX_ID, (void *) ctx));
}
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