2 * Copyright (c) 2005 Michael Bushkov <bushman@rsu.ru>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
31 #include <sys/param.h>
42 static int services_marshal_func(struct servent *, char *, size_t *);
43 static int services_lookup_func(const char *, size_t, char **, size_t *);
44 static void *services_mp_init_func(void);
45 static int services_mp_lookup_func(char **, size_t *, void *);
46 static void services_mp_destroy_func(void *);
49 services_marshal_func(struct servent *serv, char *buffer, size_t *buffer_size)
51 struct servent new_serv;
58 TRACE_IN(services_marshal_func);
59 desired_size = ALIGNBYTES + sizeof(struct servent) + sizeof(char *);
60 if (serv->s_name != NULL)
61 desired_size += strlen(serv->s_name) + 1;
62 if (serv->s_proto != NULL)
63 desired_size += strlen(serv->s_proto) + 1;
66 if (serv->s_aliases != NULL) {
67 for (alias = serv->s_aliases; *alias; ++alias) {
68 desired_size += strlen(*alias) + 1;
72 desired_size += ALIGNBYTES + sizeof(char *) *
76 if ((*buffer_size < desired_size) || (buffer == NULL)) {
77 *buffer_size = desired_size;
78 TRACE_OUT(services_marshal_func);
82 memcpy(&new_serv, serv, sizeof(struct servent));
83 memset(buffer, 0, desired_size);
85 *buffer_size = desired_size;
86 p = buffer + sizeof(struct servent) + sizeof(char *);
87 memcpy(buffer + sizeof(struct servent), &p, sizeof(char *));
90 if (new_serv.s_name != NULL) {
91 size = strlen(new_serv.s_name);
92 memcpy(p, new_serv.s_name, size);
97 if (new_serv.s_proto != NULL) {
98 size = strlen(new_serv.s_proto);
99 memcpy(p, new_serv.s_proto, size);
100 new_serv.s_proto = p;
104 if (new_serv.s_aliases != NULL) {
105 p = (char *)ALIGN(p);
106 memcpy(p, new_serv.s_aliases, sizeof(char *) * aliases_size);
107 new_serv.s_aliases = (char **)p;
108 p += sizeof(char *) * (aliases_size + 1);
110 for (alias = new_serv.s_aliases; *alias; ++alias) {
111 size = strlen(*alias);
112 memcpy(p, *alias, size);
118 memcpy(buffer, &new_serv, sizeof(struct servent));
119 TRACE_OUT(services_marshal_func);
124 services_lookup_func(const char *key, size_t key_size, char **buffer,
127 enum nss_lookup_type lookup_type;
133 struct servent *result;
135 TRACE_IN(services_lookup_func);
137 assert(buffer != NULL);
138 assert(buffer_size != NULL);
140 if (key_size < sizeof(enum nss_lookup_type)) {
141 TRACE_OUT(passwd_lookup_func);
144 memcpy(&lookup_type, key, sizeof(enum nss_lookup_type));
146 switch (lookup_type) {
148 size = key_size - sizeof(enum nss_lookup_type);
149 name = calloc(1, size + 1);
150 assert(name != NULL);
151 memcpy(name, key + sizeof(enum nss_lookup_type), size);
153 size2 = strlen(name) + 1;
156 proto = name + size2;
161 if (key_size < sizeof(enum nss_lookup_type) +
163 TRACE_OUT(passwd_lookup_func);
167 memcpy(&port, key + sizeof(enum nss_lookup_type),
170 size = key_size - sizeof(enum nss_lookup_type) - sizeof(int);
172 proto = calloc(1, size + 1);
173 assert(proto != NULL);
174 memcpy(proto, key + sizeof(enum nss_lookup_type) +
179 TRACE_OUT(passwd_lookup_func);
183 switch (lookup_type) {
185 result = getservbyname(name, proto);
189 result = getservbyport(port, proto);
193 /* SHOULD NOT BE REACHED */
197 if (result != NULL) {
198 services_marshal_func(result, NULL, buffer_size);
199 *buffer = malloc(*buffer_size);
200 assert(*buffer != NULL);
201 services_marshal_func(result, *buffer, buffer_size);
204 TRACE_OUT(services_lookup_func);
205 return (result == NULL ? NS_NOTFOUND : NS_SUCCESS);
209 services_mp_init_func(void)
211 TRACE_IN(services_mp_init_func);
213 TRACE_OUT(services_mp_init_func);
219 services_mp_lookup_func(char **buffer, size_t *buffer_size, void *mdata)
221 struct servent *result;
223 TRACE_IN(services_mp_lookup_func);
224 result = getservent();
225 if (result != NULL) {
226 services_marshal_func(result, NULL, buffer_size);
227 *buffer = malloc(*buffer_size);
228 assert(*buffer != NULL);
229 services_marshal_func(result, *buffer, buffer_size);
232 TRACE_OUT(services_mp_lookup_func);
233 return (result == NULL ? NS_NOTFOUND : NS_SUCCESS);
237 services_mp_destroy_func(void *mdata)
239 TRACE_IN(services_mp_destroy_func);
240 TRACE_OUT(services_mp_destroy_func);
244 init_services_agent(void)
246 struct common_agent *retval;
247 TRACE_IN(init_services_agent);
249 retval = calloc(1, sizeof(*retval));
250 assert(retval != NULL);
252 retval->parent.name = strdup("services");
253 assert(retval->parent.name != NULL);
255 retval->parent.type = COMMON_AGENT;
256 retval->lookup_func = services_lookup_func;
258 TRACE_OUT(init_services_agent);
259 return ((struct agent *)retval);
263 init_services_mp_agent(void)
265 struct multipart_agent *retval;
267 TRACE_IN(init_services_mp_agent);
270 assert(retval != NULL);
272 retval->parent.name = strdup("services");
273 retval->parent.type = MULTIPART_AGENT;
274 retval->mp_init_func = services_mp_init_func;
275 retval->mp_lookup_func = services_mp_lookup_func;
276 retval->mp_destroy_func = services_mp_destroy_func;
277 assert(retval->parent.name != NULL);
279 TRACE_OUT(init_services_mp_agent);
280 return ((struct agent *)retval);