1 /* $NetBSD: irp_ng.c,v 1.1.1.2 2012/09/09 16:07:59 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)
21 static 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
47 struct pvt {
48 struct irp_p *girpdata;
49 int warned;
50 };
51
52
53 /* Forward */
54
55 static void ng_rewind(struct irs_ng *, const char*);
56 static void ng_close(struct irs_ng *);
57 static int ng_next(struct irs_ng *, const char **, const char **,
58 const char **);
59 static int ng_test(struct irs_ng *, const char *,
60 const char *, const char *,
61 const char *);
62 static void ng_minimize(struct irs_ng *);
63
64
65 /* Public */
66
67 /*%
68 * Intialize the irp netgroup module.
69 *
70 */
71
72 struct irs_ng *
irs_irp_ng(struct irs_acc * this)73 irs_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
109 static void
ng_close(struct irs_ng * this)110 ng_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
128 static void
ng_rewind(struct irs_ng * this,const char * group)129 ng_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
159 static int
ng_next(struct irs_ng * this,const char ** host,const char ** user,const char ** domain)160 ng_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
201 static int
ng_test(struct irs_ng * this,const char * name,const char * host,const char * user,const char * domain)202 ng_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
242 static void
ng_minimize(struct irs_ng * this)243 ng_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