3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Paul Borman at Krystal Technologies.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 #if defined(LIBC_SCCS) && !defined(lint)
34 static char sccsid[] = "@(#)rune.c 8.1 (Berkeley) 6/4/93";
35 #endif /* LIBC_SCCS and not lint */
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
39 #include "namespace.h"
40 #include <arpa/inet.h>
46 #include <sys/types.h>
48 #include "un-namespace.h"
52 _RuneLocale *_Read_RuneMagi(FILE *);
55 _Read_RuneMagi(FILE *fp)
66 _FileRuneEntry *runetype_ext_ranges;
67 _FileRuneEntry *maplower_ext_ranges;
68 _FileRuneEntry *mapupper_ext_ranges;
69 int runetype_ext_len = 0;
71 if (_fstat(fileno(fp), &sb) < 0)
74 if ((size_t)sb.st_size < sizeof(_FileRuneLocale)) {
79 if ((fdata = malloc(sb.st_size)) == NULL)
83 rewind(fp); /* Someone might have read the magic number once already */
91 if (fread(fdata, sb.st_size, 1, fp) != 1) {
98 frl = (_FileRuneLocale *)fdata;
99 lastp = fdata + sb.st_size;
103 if (memcmp(frl->magic, _FILE_RUNE_MAGIC_1, sizeof(frl->magic))) {
109 frl->variable_len = ntohl(frl->variable_len);
110 frl->runetype_ext_nranges = ntohl(frl->runetype_ext_nranges);
111 frl->maplower_ext_nranges = ntohl(frl->maplower_ext_nranges);
112 frl->mapupper_ext_nranges = ntohl(frl->mapupper_ext_nranges);
114 for (x = 0; x < _CACHED_RUNES; ++x) {
115 frl->runetype[x] = ntohl(frl->runetype[x]);
116 frl->maplower[x] = ntohl(frl->maplower[x]);
117 frl->mapupper[x] = ntohl(frl->mapupper[x]);
120 runetype_ext_ranges = (_FileRuneEntry *)variable;
121 variable = runetype_ext_ranges + frl->runetype_ext_nranges;
122 if (variable > lastp) {
128 maplower_ext_ranges = (_FileRuneEntry *)variable;
129 variable = maplower_ext_ranges + frl->maplower_ext_nranges;
130 if (variable > lastp) {
136 mapupper_ext_ranges = (_FileRuneEntry *)variable;
137 variable = mapupper_ext_ranges + frl->mapupper_ext_nranges;
138 if (variable > lastp) {
144 frr = runetype_ext_ranges;
145 for (x = 0; x < frl->runetype_ext_nranges; ++x) {
148 frr[x].min = ntohl(frr[x].min);
149 frr[x].max = ntohl(frr[x].max);
150 frr[x].map = ntohl(frr[x].map);
151 if (frr[x].map == 0) {
152 int len = frr[x].max - frr[x].min + 1;
154 variable = types + len;
155 runetype_ext_len += len;
156 if (variable > lastp) {
162 types[len] = ntohl(types[len]);
166 frr = maplower_ext_ranges;
167 for (x = 0; x < frl->maplower_ext_nranges; ++x) {
168 frr[x].min = ntohl(frr[x].min);
169 frr[x].max = ntohl(frr[x].max);
170 frr[x].map = ntohl(frr[x].map);
173 frr = mapupper_ext_ranges;
174 for (x = 0; x < frl->mapupper_ext_nranges; ++x) {
175 frr[x].min = ntohl(frr[x].min);
176 frr[x].max = ntohl(frr[x].max);
177 frr[x].map = ntohl(frr[x].map);
179 if ((char *)variable + frl->variable_len > (char *)lastp) {
186 * Convert from disk format to host format.
188 data = malloc(sizeof(_RuneLocale) +
189 (frl->runetype_ext_nranges + frl->maplower_ext_nranges +
190 frl->mapupper_ext_nranges) * sizeof(_RuneEntry) +
191 runetype_ext_len * sizeof(*rr->__types) +
200 rl = (_RuneLocale *)data;
201 rl->__variable = rl + 1;
203 memcpy(rl->__magic, _RUNE_MAGIC_1, sizeof(rl->__magic));
204 memcpy(rl->__encoding, frl->encoding, sizeof(rl->__encoding));
205 rl->__invalid_rune = 0;
207 rl->__variable_len = frl->variable_len;
208 rl->__runetype_ext.__nranges = frl->runetype_ext_nranges;
209 rl->__maplower_ext.__nranges = frl->maplower_ext_nranges;
210 rl->__mapupper_ext.__nranges = frl->mapupper_ext_nranges;
212 for (x = 0; x < _CACHED_RUNES; ++x) {
213 rl->__runetype[x] = frl->runetype[x];
214 rl->__maplower[x] = frl->maplower[x];
215 rl->__mapupper[x] = frl->mapupper[x];
218 rl->__runetype_ext.__ranges = (_RuneEntry *)rl->__variable;
219 rl->__variable = rl->__runetype_ext.__ranges +
220 rl->__runetype_ext.__nranges;
222 rl->__maplower_ext.__ranges = (_RuneEntry *)rl->__variable;
223 rl->__variable = rl->__maplower_ext.__ranges +
224 rl->__maplower_ext.__nranges;
226 rl->__mapupper_ext.__ranges = (_RuneEntry *)rl->__variable;
227 rl->__variable = rl->__mapupper_ext.__ranges +
228 rl->__mapupper_ext.__nranges;
230 variable = mapupper_ext_ranges + frl->mapupper_ext_nranges;
231 frr = runetype_ext_ranges;
232 rr = rl->__runetype_ext.__ranges;
233 for (x = 0; x < rl->__runetype_ext.__nranges; ++x) {
236 rr[x].__min = frr[x].min;
237 rr[x].__max = frr[x].max;
238 rr[x].__map = frr[x].map;
239 if (rr[x].__map == 0) {
240 int len = rr[x].__max - rr[x].__min + 1;
242 variable = types + len;
243 rr[x].__types = rl->__variable;
244 rl->__variable = rr[x].__types + len;
246 rr[x].__types[len] = types[len];
248 rr[x].__types = NULL;
251 frr = maplower_ext_ranges;
252 rr = rl->__maplower_ext.__ranges;
253 for (x = 0; x < rl->__maplower_ext.__nranges; ++x) {
254 rr[x].__min = frr[x].min;
255 rr[x].__max = frr[x].max;
256 rr[x].__map = frr[x].map;
259 frr = mapupper_ext_ranges;
260 rr = rl->__mapupper_ext.__ranges;
261 for (x = 0; x < rl->__mapupper_ext.__nranges; ++x) {
262 rr[x].__min = frr[x].min;
263 rr[x].__max = frr[x].max;
264 rr[x].__map = frr[x].map;
267 memcpy(rl->__variable, variable, rl->__variable_len);
271 * Go out and zero pointers that should be zero.
273 if (!rl->__variable_len)
274 rl->__variable = NULL;
276 if (!rl->__runetype_ext.__nranges)
277 rl->__runetype_ext.__ranges = NULL;
279 if (!rl->__maplower_ext.__nranges)
280 rl->__maplower_ext.__ranges = NULL;
282 if (!rl->__mapupper_ext.__nranges)
283 rl->__mapupper_ext.__ranges = NULL;