1 /* pam_static.c -- static module loading helper functions */
3 /* created by Michael K. Johnson, johnsonm@redhat.com
5 * $Id: pam_static.c,v 1.4 1996/12/01 03:14:13 morgan Exp $
6 * $FreeBSD: src/contrib/libpam/libpam/pam_static.c,v 1.2.6.2 2001/06/11 15:28:12 markm Exp $
8 * $Log: pam_static.c,v $
9 * Revision 1.4 1996/12/01 03:14:13 morgan
12 * Revision 1.3 1996/11/10 20:09:16 morgan
13 * name convention change _pam_
15 * Revision 1.2 1996/06/02 08:02:56 morgan
16 * Michael's minor alterations
18 * Revision 1.1 1996/05/26 04:34:04 morgan
27 #include "pam_private.h"
29 /* This whole file is only used for PAM_STATIC */
33 extern struct linker_set _pam_static_modules;
35 /* Return pointer to data structure used to define a static module */
36 struct pam_module * _pam_open_static_handler(char *path) {
38 char *lpath = path, *end;
39 struct pam_module **static_modules =
40 (struct pam_module **)_pam_static_modules.ls_items;
42 if (strchr(lpath, '/')) {
43 /* ignore path and leading "/" */
44 lpath = strrchr(lpath, '/') + 1;
46 /* create copy to muck with (must free before return) */
47 lpath = _pam_strdup(lpath);
48 /* chop .so off copy if it exists (or other extension on other
50 end = strstr(lpath, ".so");
55 /* now go find the module */
56 for (i = 0; static_modules[i] != NULL; i++) {
57 D(("%s=?%s\n", lpath, static_modules[i]->name));
58 if (static_modules[i]->name &&
59 ! strcmp(static_modules[i]->name, lpath)) {
65 return (static_modules[i]);
68 /* Return pointer to function requested from static module
69 * Can't just return void *, because ANSI C disallows casting a
70 * pointer to a function to a void *...
71 * This definition means:
72 * _pam_get_static_sym is a function taking two arguments and
73 * returning a pointer to a function which takes no arguments
74 * and returns void... */
75 voidfunc *_pam_get_static_sym(struct pam_module *mod, const char *symname) {
77 if (! strcmp(symname, "pam_sm_authenticate")) {
78 return ((voidfunc *)mod->pam_sm_authenticate);
79 } else if (! strcmp(symname, "pam_sm_setcred")) {
80 return ((voidfunc *)mod->pam_sm_setcred);
81 } else if (! strcmp(symname, "pam_sm_acct_mgmt")) {
82 return ((voidfunc *)mod->pam_sm_acct_mgmt);
83 } else if (! strcmp(symname, "pam_sm_open_session")) {
84 return ((voidfunc *)mod->pam_sm_open_session);
85 } else if (! strcmp(symname, "pam_sm_close_session")) {
86 return ((voidfunc *)mod->pam_sm_close_session);
87 } else if (! strcmp(symname, "pam_sm_chauthtok")) {
88 return ((voidfunc *)mod->pam_sm_chauthtok);
90 /* getting to this point is an error */
91 return ((voidfunc *)NULL);
94 #endif /* PAM_STATIC */
97 * Copyright (C) 1995 by Red Hat Software, Michael K. Johnson
100 * Redistribution and use in source and binary forms, with or without
101 * modification, are permitted provided that the following conditions
103 * 1. Redistributions of source code must retain the above copyright
104 * notice, and the entire permission notice in its entirety,
105 * including the disclaimer of warranties.
106 * 2. Redistributions in binary form must reproduce the above copyright
107 * notice, this list of conditions and the following disclaimer in the
108 * documentation and/or other materials provided with the distribution.
109 * 3. The name of the author may not be used to endorse or promote
110 * products derived from this software without specific prior
111 * written permission.
113 * ALTERNATIVELY, this product may be distributed under the terms of
114 * the GNU Public License, in which case the provisions of the GPL are
115 * required INSTEAD OF the above restrictions. (This clause is
116 * necessary due to a potential bad interaction between the GPL and
117 * the restrictions contained in a BSD-style copyright.)
119 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
120 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
121 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
122 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
123 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
124 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
125 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
126 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
127 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
128 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
129 * OF THE POSSIBILITY OF SUCH DAMAGE.