90 lines
2.9 KiB
C
90 lines
2.9 KiB
C
/*-
|
|
* Copyright (c) 2002 Networks Associates Technology, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed for the FreeBSD Project by ThinkSec AS and
|
|
* NAI Labs, the Security Research Division of Network Associates, Inc.
|
|
* under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
|
|
* DARPA CHATS research program.
|
|
*
|
|
* 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 of the author may not be used to endorse or promote
|
|
* products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $P4: //depot/projects/openpam/lib/openpam_dynamic.c#2 $
|
|
*/
|
|
|
|
#include <dlfcn.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include <security/pam_appl.h>
|
|
|
|
#include "openpam_impl.h"
|
|
|
|
/*
|
|
* OpenPAM internal
|
|
*
|
|
* Locate a dynamically linked module
|
|
*/
|
|
|
|
pam_module_t *
|
|
openpam_dynamic(const char *path)
|
|
{
|
|
pam_module_t *module;
|
|
char *vpath;
|
|
void *dlh;
|
|
int i;
|
|
|
|
if ((module = calloc(1, sizeof *module)) == NULL)
|
|
goto buf_err;
|
|
|
|
/* try versioned module first, then unversioned module */
|
|
if (asprintf(&vpath, "%s.%d", path, LIB_MAJ) == -1)
|
|
goto buf_err;
|
|
if ((dlh = dlopen(vpath, RTLD_NOW)) == NULL) {
|
|
openpam_log(PAM_LOG_ERROR, "dlopen(): %s", dlerror());
|
|
*strrchr(vpath, '.') = '\0';
|
|
if ((dlh = dlopen(vpath, RTLD_NOW)) == NULL) {
|
|
openpam_log(PAM_LOG_ERROR, "dlopen(): %s", dlerror());
|
|
free(module);
|
|
return (NULL);
|
|
}
|
|
}
|
|
module->path = vpath;
|
|
module->dlh = dlh;
|
|
for (i = 0; i < PAM_NUM_PRIMITIVES; ++i)
|
|
module->func[i] = dlsym(dlh, _pam_sm_func_name[i]);
|
|
return (module);
|
|
buf_err:
|
|
openpam_log(PAM_LOG_ERROR, "%m");
|
|
dlclose(dlh);
|
|
free(module);
|
|
return (NULL);
|
|
}
|
|
|
|
/*
|
|
* NOPARSE
|
|
*/
|