irp_ng.c revision 1.1.1.1 
1/*	$NetBSD: irp_ng.c,v 1.1.1.1 2009/04/12 15:33:44 christos Exp $	*/
2
3/*
4 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
5 * Copyright (c) 1996, 1998 by Internet Software Consortium.
6 *
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
17 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 */
19
20#if !defined(LINT) && !defined(CODECENTER)
21static const char rcsid[] = "Id: irp_ng.c,v 1.4 2006/12/07 04:46:27 marka Exp";
22#endif
23
24/* Imports */
25
26#include "port_before.h"
27
28#include <errno.h>
29#include <stdio.h>
30#include <stdlib.h>
31#include <string.h>
32#include <unistd.h>
33#include <syslog.h>
34
35#include <irs.h>
36#include <irp.h>
37#include <isc/memcluster.h>
38#include <isc/irpmarshall.h>
39
40#include "irs_p.h"
41#include "irp_p.h"
42
43#include "port_after.h"
44
45/* Definitions */
46
47struct pvt {
48	struct irp_p	       *girpdata;
49	int			warned;
50};
51
52
53/* Forward */
54
55static void		ng_rewind(struct irs_ng *, const char*);
56static void		ng_close(struct irs_ng *);
57static int		ng_next(struct irs_ng *, const char **, const char **,
58				const char **);
59static int		ng_test(struct irs_ng *, const char *,
60				const char *, const char *,
61				const char *);
62static void		ng_minimize(struct irs_ng *);
63
64
65/* Public */
66
67/*%
68 *	Intialize the irp netgroup module.
69 *
70 */
71
72struct irs_ng *
73irs_irp_ng(struct irs_acc *this) {
74	struct irs_ng *ng;
75	struct pvt *pvt;
76
77	if (!(ng = memget(sizeof *ng))) {
78		errno = ENOMEM;
79		return (NULL);
80	}
81	memset(ng, 0x5e, sizeof *ng);
82
83	if (!(pvt = memget(sizeof *pvt))) {
84		memput(ng, sizeof *ng);
85		errno = ENOMEM;
86		return (NULL);
87	}
88	memset(pvt, 0, sizeof *pvt);
89	pvt->girpdata = this->private;
90
91	ng->private = pvt;
92	ng->close = ng_close;
93	ng->next = ng_next;
94	ng->test = ng_test;
95	ng->rewind = ng_rewind;
96	ng->minimize = ng_minimize;
97	return (ng);
98}
99
100/* Methods */
101
102
103
104/*
105 * void ng_close(struct irs_ng *this)
106 *
107 */
108
109static void
110ng_close(struct irs_ng *this) {
111	struct pvt *pvt = (struct pvt *)this->private;
112
113	ng_minimize(this);
114
115	memput(pvt, sizeof *pvt);
116	memput(this, sizeof *this);
117}
118
119
120
121
122/*
123 * void ng_rewind(struct irs_ng *this, const char *group)
124 *
125 *
126 */
127
128static void
129ng_rewind(struct irs_ng *this, const char *group) {
130	struct pvt *pvt = (struct pvt *)this->private;
131	char text[256];
132	int code;
133
134	if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) {
135		return;
136	}
137
138	if (irs_irp_send_command(pvt->girpdata,
139				 "setnetgrent %s", group) != 0) {
140		return;
141	}
142
143	code = irs_irp_read_response(pvt->girpdata, text, sizeof text);
144	if (code != IRPD_GETNETGR_SETOK) {
145		if (irp_log_errors) {
146			syslog(LOG_WARNING, "setnetgrent(%s) failed: %s",
147			       group, text);
148		}
149	}
150
151	return;
152}
153
154/*
155 *	Get the next netgroup item from the cache.
156 *
157 */
158
159static int
160ng_next(struct irs_ng *this, const char **host, const char **user,
161        const char **domain)
162{
163	struct pvt *pvt = (struct pvt *)this->private;
164	int code;
165	char *body = NULL;
166	size_t bodylen;
167	int rval = 0;
168	char text[256];
169
170	if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) {
171		return (0);
172	}
173
174	if (irs_irp_send_command(pvt->girpdata, "getnetgrent") != 0)
175		return (0);
176
177	if (irs_irp_get_full_response(pvt->girpdata, &code,
178				      text, sizeof text,
179				      &body, &bodylen) != 0) {
180		return (0);
181	}
182
183	if (code == IRPD_GETNETGR_OK) {
184		if (irp_unmarshall_ng(host, user, domain, body) == 0) {
185			rval = 1;
186		}
187	}
188
189	if (body != NULL) {
190		memput(body, bodylen);
191	}
192
193	return (rval);
194}
195
196/*
197 *	Search for a match in a netgroup.
198 *
199 */
200
201static int
202ng_test(struct irs_ng *this, const char *name,
203	const char *host, const char *user, const char *domain)
204{
205	struct pvt *pvt = (struct pvt *)this->private;
206	char *body = NULL;
207	size_t bodylen = 0;
208	int code;
209	char text[256];
210	int rval = 0;
211
212	UNUSED(name);
213
214	if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) {
215		return (0);
216	}
217
218	if (irp_marshall_ng(host, user, domain, &body, &bodylen) != 0) {
219		return (0);
220	}
221
222	if (irs_irp_send_command(pvt->girpdata, "innetgr %s", body) == 0) {
223		code = irs_irp_read_response(pvt->girpdata, text, sizeof text);
224		if (code == IRPD_GETNETGR_MATCHES) {
225			rval = 1;
226		}
227	}
228
229	memput(body, bodylen);
230
231	return (rval);
232}
233
234
235
236
237/*
238 * void ng_minimize(struct irs_ng *this)
239 *
240 */
241
242static void
243ng_minimize(struct irs_ng *this) {
244	struct pvt *pvt = (struct pvt *)this->private;
245
246	irs_irp_disconnect(pvt->girpdata);
247}
248
249
250
251
252/* Private */
253
254
255/*! \file */
256