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 $
7 * $DragonFly: src/contrib/libpam/libpam/Attic/pam_static.c,v 1.2 2003/06/17 04:24:03 dillon Exp $
9 * $Log: pam_static.c,v $
10 * Revision 1.4 1996/12/01 03:14:13 morgan
13 * Revision 1.3 1996/11/10 20:09:16 morgan
14 * name convention change _pam_
16 * Revision 1.2 1996/06/02 08:02:56 morgan
17 * Michael's minor alterations
19 * Revision 1.1 1996/05/26 04:34:04 morgan
28 #include "pam_private.h"
30 /* This whole file is only used for PAM_STATIC */
34 extern struct linker_set _pam_static_modules;
36 /* Return pointer to data structure used to define a static module */
37 struct pam_module * _pam_open_static_handler(char *path) {
39 char *lpath = path, *end;
40 struct pam_module **static_modules =
41 (struct pam_module **)_pam_static_modules.ls_items;
43 if (strchr(lpath, '/')) {
44 /* ignore path and leading "/" */
45 lpath = strrchr(lpath, '/') + 1;
47 /* create copy to muck with (must free before return) */
48 lpath = _pam_strdup(lpath);
49 /* chop .so off copy if it exists (or other extension on other
51 end = strstr(lpath, ".so");
56 /* now go find the module */
57 for (i = 0; static_modules[i] != NULL; i++) {
58 D(("%s=?%s\n", lpath, static_modules[i]->name));
59 if (static_modules[i]->name &&
60 ! strcmp(static_modules[i]->name, lpath)) {
66 return (static_modules[i]);
69 /* Return pointer to function requested from static module
70 * Can't just return void *, because ANSI C disallows casting a
71 * pointer to a function to a void *...
72 * This definition means:
73 * _pam_get_static_sym is a function taking two arguments and
74 * returning a pointer to a function which takes no arguments
75 * and returns void... */
76 voidfunc *_pam_get_static_sym(struct pam_module *mod, const char *symname) {
78 if (! strcmp(symname, "pam_sm_authenticate")) {
79 return ((voidfunc *)mod->pam_sm_authenticate);
80 } else if (! strcmp(symname, "pam_sm_setcred")) {
81 return ((voidfunc *)mod->pam_sm_setcred);
82 } else if (! strcmp(symname, "pam_sm_acct_mgmt")) {
83 return ((voidfunc *)mod->pam_sm_acct_mgmt);
84 } else if (! strcmp(symname, "pam_sm_open_session")) {
85 return ((voidfunc *)mod->pam_sm_open_session);
86 } else if (! strcmp(symname, "pam_sm_close_session")) {
87 return ((voidfunc *)mod->pam_sm_close_session);
88 } else if (! strcmp(symname, "pam_sm_chauthtok")) {
89 return ((voidfunc *)mod->pam_sm_chauthtok);
91 /* getting to this point is an error */
92 return ((voidfunc *)NULL);
95 #endif /* PAM_STATIC */
98 * Copyright (C) 1995 by Red Hat Software, Michael K. Johnson
101 * Redistribution and use in source and binary forms, with or without
102 * modification, are permitted provided that the following conditions
104 * 1. Redistributions of source code must retain the above copyright
105 * notice, and the entire permission notice in its entirety,
106 * including the disclaimer of warranties.
107 * 2. Redistributions in binary form must reproduce the above copyright
108 * notice, this list of conditions and the following disclaimer in the
109 * documentation and/or other materials provided with the distribution.
110 * 3. The name of the author may not be used to endorse or promote
111 * products derived from this software without specific prior
112 * written permission.
114 * ALTERNATIVELY, this product may be distributed under the terms of
115 * the GNU Public License, in which case the provisions of the GPL are
116 * required INSTEAD OF the above restrictions. (This clause is
117 * necessary due to a potential bad interaction between the GPL and
118 * the restrictions contained in a BSD-style copyright.)
120 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
121 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
122 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
123 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
124 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
125 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
126 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
127 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
128 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
129 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
130 * OF THE POSSIBILITY OF SUCH DAMAGE.