source: MondoRescue/branches/2.2.9/mindi-busybox/networking/libiproute/rt_names.c@ 2142

Last change on this file since 2142 was 1765, checked in by Bruno Cornec, 17 years ago

Update to busybox 1.7.2

File size: 6.8 KB
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 * rt_names.c rtnetlink names DB.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version
8 * 2 of the License, or (at your option) any later version.
9 *
10 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
11 */
12
13#include "libbb.h"
14#include "rt_names.h"
15
16static void rtnl_tab_initialize(const char *file, const char **tab, int size)
17{
18 char buf[512];
19 FILE *fp;
20
21 fp = fopen(file, "r");
22 if (!fp)
23 return;
24 while (fgets(buf, sizeof(buf), fp)) {
25 char *p = buf;
26 int id;
27 char namebuf[512];
28
29 while (*p == ' ' || *p == '\t')
30 p++;
31 if (*p == '#' || *p == '\n' || *p == 0)
32 continue;
33 if (sscanf(p, "0x%x %s\n", &id, namebuf) != 2
34 && sscanf(p, "0x%x %s #", &id, namebuf) != 2
35 && sscanf(p, "%d %s\n", &id, namebuf) != 2
36 && sscanf(p, "%d %s #", &id, namebuf) != 2
37 ) {
38 bb_error_msg("database %s is corrupted at %s",
39 file, p);
40 return;
41 }
42
43 if (id < 0 || id > size)
44 continue;
45
46 tab[id] = xstrdup(namebuf);
47 }
48 fclose(fp);
49}
50
51
52static const char **rtnl_rtprot_tab; /* [256] */
53
54static void rtnl_rtprot_initialize(void)
55{
56 static const char *const init_tab[] = {
57 "none",
58 "redirect",
59 "kernel",
60 "boot",
61 "static",
62 NULL,
63 NULL,
64 NULL,
65 "gated",
66 "ra",
67 "mrt",
68 "zebra",
69 "bird",
70 };
71 if (rtnl_rtprot_tab) return;
72 rtnl_rtprot_tab = xzalloc(256 * sizeof(rtnl_rtprot_tab[0]));
73 memcpy(rtnl_rtprot_tab, init_tab, sizeof(init_tab));
74 rtnl_tab_initialize("/etc/iproute2/rt_protos",
75 rtnl_rtprot_tab, 256);
76}
77
78
79const char* rtnl_rtprot_n2a(int id, char *buf, int len)
80{
81 if (id < 0 || id >= 256) {
82 snprintf(buf, len, "%d", id);
83 return buf;
84 }
85
86 rtnl_rtprot_initialize();
87
88 if (rtnl_rtprot_tab[id])
89 return rtnl_rtprot_tab[id];
90 snprintf(buf, len, "%d", id);
91 return buf;
92}
93
94int rtnl_rtprot_a2n(uint32_t *id, char *arg)
95{
96 static const char *cache = NULL;
97 static unsigned long res;
98 int i;
99
100 if (cache && strcmp(cache, arg) == 0) {
101 *id = res;
102 return 0;
103 }
104
105 rtnl_rtprot_initialize();
106
107 for (i = 0; i < 256; i++) {
108 if (rtnl_rtprot_tab[i] &&
109 strcmp(rtnl_rtprot_tab[i], arg) == 0) {
110 cache = rtnl_rtprot_tab[i];
111 res = i;
112 *id = res;
113 return 0;
114 }
115 }
116
117 res = bb_strtoul(arg, NULL, 0);
118 if (errno || res > 255)
119 return -1;
120 *id = res;
121 return 0;
122}
123
124
125static const char **rtnl_rtscope_tab; /* [256] */
126
127static void rtnl_rtscope_initialize(void)
128{
129 if (rtnl_rtscope_tab) return;
130 rtnl_rtscope_tab = xzalloc(256 * sizeof(rtnl_rtscope_tab[0]));
131 rtnl_rtscope_tab[0] = "global";
132 rtnl_rtscope_tab[255] = "nowhere";
133 rtnl_rtscope_tab[254] = "host";
134 rtnl_rtscope_tab[253] = "link";
135 rtnl_rtscope_tab[200] = "site";
136 rtnl_tab_initialize("/etc/iproute2/rt_scopes",
137 rtnl_rtscope_tab, 256);
138}
139
140
141const char* rtnl_rtscope_n2a(int id, char *buf, int len)
142{
143 if (id < 0 || id >= 256) {
144 snprintf(buf, len, "%d", id);
145 return buf;
146 }
147
148 rtnl_rtscope_initialize();
149
150 if (rtnl_rtscope_tab[id])
151 return rtnl_rtscope_tab[id];
152 snprintf(buf, len, "%d", id);
153 return buf;
154}
155
156int rtnl_rtscope_a2n(uint32_t *id, char *arg)
157{
158 static const char *cache = NULL;
159 static unsigned long res;
160 int i;
161
162 if (cache && strcmp(cache, arg) == 0) {
163 *id = res;
164 return 0;
165 }
166
167 rtnl_rtscope_initialize();
168
169 for (i = 0; i < 256; i++) {
170 if (rtnl_rtscope_tab[i] &&
171 strcmp(rtnl_rtscope_tab[i], arg) == 0) {
172 cache = rtnl_rtscope_tab[i];
173 res = i;
174 *id = res;
175 return 0;
176 }
177 }
178
179 res = bb_strtoul(arg, NULL, 0);
180 if (errno || res > 255)
181 return -1;
182 *id = res;
183 return 0;
184}
185
186
187static const char **rtnl_rtrealm_tab; /* [256] */
188
189static void rtnl_rtrealm_initialize(void)
190{
191 if (rtnl_rtrealm_tab) return;
192 rtnl_rtrealm_tab = xzalloc(256 * sizeof(rtnl_rtrealm_tab[0]));
193 rtnl_rtrealm_tab[0] = "unknown";
194 rtnl_tab_initialize("/etc/iproute2/rt_realms",
195 rtnl_rtrealm_tab, 256);
196}
197
198
199int rtnl_rtrealm_a2n(uint32_t *id, char *arg)
200{
201 static const char *cache = NULL;
202 static unsigned long res;
203 int i;
204
205 if (cache && strcmp(cache, arg) == 0) {
206 *id = res;
207 return 0;
208 }
209
210 rtnl_rtrealm_initialize();
211
212 for (i = 0; i < 256; i++) {
213 if (rtnl_rtrealm_tab[i] &&
214 strcmp(rtnl_rtrealm_tab[i], arg) == 0) {
215 cache = rtnl_rtrealm_tab[i];
216 res = i;
217 *id = res;
218 return 0;
219 }
220 }
221
222 res = bb_strtoul(arg, NULL, 0);
223 if (errno || res > 255)
224 return -1;
225 *id = res;
226 return 0;
227}
228
229#if ENABLE_FEATURE_IP_RULE
230const char* rtnl_rtrealm_n2a(int id, char *buf, int len)
231{
232 if (id < 0 || id >= 256) {
233 snprintf(buf, len, "%d", id);
234 return buf;
235 }
236
237 rtnl_rtrealm_initialize();
238
239 if (rtnl_rtrealm_tab[id])
240 return rtnl_rtrealm_tab[id];
241 snprintf(buf, len, "%d", id);
242 return buf;
243}
244#endif
245
246
247static const char **rtnl_rtdsfield_tab; /* [256] */
248
249static void rtnl_rtdsfield_initialize(void)
250{
251 if (rtnl_rtdsfield_tab) return;
252 rtnl_rtdsfield_tab = xzalloc(256 * sizeof(rtnl_rtdsfield_tab[0]));
253 rtnl_rtdsfield_tab[0] = "0";
254 rtnl_tab_initialize("/etc/iproute2/rt_dsfield",
255 rtnl_rtdsfield_tab, 256);
256}
257
258
259const char * rtnl_dsfield_n2a(int id, char *buf, int len)
260{
261 if (id < 0 || id >= 256) {
262 snprintf(buf, len, "%d", id);
263 return buf;
264 }
265
266 rtnl_rtdsfield_initialize();
267
268 if (rtnl_rtdsfield_tab[id])
269 return rtnl_rtdsfield_tab[id];
270 snprintf(buf, len, "0x%02x", id);
271 return buf;
272}
273
274
275int rtnl_dsfield_a2n(uint32_t *id, char *arg)
276{
277 static const char *cache = NULL;
278 static unsigned long res;
279 int i;
280
281 if (cache && strcmp(cache, arg) == 0) {
282 *id = res;
283 return 0;
284 }
285
286 rtnl_rtdsfield_initialize();
287
288 for (i = 0; i < 256; i++) {
289 if (rtnl_rtdsfield_tab[i] &&
290 strcmp(rtnl_rtdsfield_tab[i], arg) == 0) {
291 cache = rtnl_rtdsfield_tab[i];
292 res = i;
293 *id = res;
294 return 0;
295 }
296 }
297
298 res = bb_strtoul(arg, NULL, 16);
299 if (errno || res > 255)
300 return -1;
301 *id = res;
302 return 0;
303}
304
305
306#if ENABLE_FEATURE_IP_RULE
307static const char **rtnl_rttable_tab; /* [256] */
308
309static void rtnl_rttable_initialize(void)
310{
311 if (rtnl_rtdsfield_tab) return;
312 rtnl_rttable_tab = xzalloc(256 * sizeof(rtnl_rttable_tab[0]));
313 rtnl_rttable_tab[0] = "unspec";
314 rtnl_rttable_tab[255] = "local";
315 rtnl_rttable_tab[254] = "main";
316 rtnl_rttable_tab[253] = "default";
317 rtnl_tab_initialize("/etc/iproute2/rt_tables", rtnl_rttable_tab, 256);
318}
319
320
321const char *rtnl_rttable_n2a(int id, char *buf, int len)
322{
323 if (id < 0 || id >= 256) {
324 snprintf(buf, len, "%d", id);
325 return buf;
326 }
327
328 rtnl_rttable_initialize();
329
330 if (rtnl_rttable_tab[id])
331 return rtnl_rttable_tab[id];
332 snprintf(buf, len, "%d", id);
333 return buf;
334}
335
336int rtnl_rttable_a2n(uint32_t * id, char *arg)
337{
338 static char *cache = NULL;
339 static unsigned long res;
340 int i;
341
342 if (cache && strcmp(cache, arg) == 0) {
343 *id = res;
344 return 0;
345 }
346
347 rtnl_rttable_initialize();
348
349 for (i = 0; i < 256; i++) {
350 if (rtnl_rttable_tab[i] && strcmp(rtnl_rttable_tab[i], arg) == 0) {
351 cache = (char*)rtnl_rttable_tab[i];
352 res = i;
353 *id = res;
354 return 0;
355 }
356 }
357
358 i = bb_strtoul(arg, NULL, 0);
359 if (errno || i > 255)
360 return -1;
361 *id = i;
362 return 0;
363}
364
365#endif
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