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