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auth.c
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auth.c
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/*
* Copyright (c) 1994-2008 Carnegie Mellon University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The name "Carnegie Mellon University" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For permission or any legal
* details, please contact
* Carnegie Mellon University
* Center for Technology Transfer and Enterprise Creation
* 4615 Forbes Avenue
* Suite 302
* Pittsburgh, PA 15213
* (412) 268-7393, fax: (412) 268-7395
* innovation@andrew.cmu.edu
*
* 4. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by Computing Services
* at Carnegie Mellon University (http://www.cmu.edu/computing/)."
*
* CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY 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.
*/
#include <config.h>
#include <stdlib.h>
#include <string.h>
#include "auth.h"
#include "exitcodes.h"
#include "libcyr_cfg.h"
#include "xmalloc.h"
struct auth_mech *auth_mechs[] = {
&auth_unix,
&auth_pts,
#ifdef HAVE_KRB
&auth_krb,
#endif
#ifdef HAVE_GSSAPI_H
&auth_krb5,
#endif
NULL };
static struct auth_mech *auth_fromname(void)
{
int i;
const char *name = libcyrus_config_getstring(CYRUSOPT_AUTH_MECH);
static struct auth_mech *auth = NULL;
if (auth)
return auth;
for (i = 0; auth_mechs[i]; i++) {
if (!strcmp(auth_mechs[i]->name, name)) {
auth = auth_mechs[i]; break;
}
}
if (!auth) {
char errbuf[1024];
snprintf(errbuf, sizeof(errbuf),
"Authorization mechanism %s not supported", name);
fatal(errbuf, EC_CONFIG);
}
return auth;
}
EXPORTED int auth_memberof(struct auth_state *auth_state, const char *identifier)
{
struct auth_mech *auth = auth_fromname();
return auth->memberof(auth_state, identifier);
}
EXPORTED const char *auth_canonifyid(const char *identifier, size_t len)
{
struct auth_mech *auth = auth_fromname();
return auth->canonifyid(identifier, len);
}
EXPORTED struct auth_state *auth_newstate(const char *identifier)
{
struct auth_mech *auth = auth_fromname();
return auth->newstate(identifier);
}
EXPORTED void auth_freestate(struct auth_state *auth_state)
{
struct auth_mech *auth = auth_fromname();
if (auth_state) auth->freestate(auth_state);
}

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