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2964 need POSIX 2008 locale object support
Reviewed by: Robert Mustacchi <rm@joyent.com>
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--- old/usr/src/lib/libc/port/locale/rune.c
+++ new/usr/src/lib/libc/port/locale/rune.c
1 1 /*
2 + * Copyright 2014 Garrett D'Amore <garrett@damore.org>
2 3 * Copyright 2010 Nexenta Systems, Inc. All rights reserved.
3 4 * Copyright (c) 1993
4 5 * The Regents of the University of California. All rights reserved.
5 6 *
6 7 * This code is derived from software contributed to Berkeley by
7 8 * Paul Borman at Krystal Technologies.
8 9 *
9 10 * Redistribution and use in source and binary forms, with or without
10 11 * modification, are permitted provided that the following conditions
11 12 * are met:
12 13 * 1. Redistributions of source code must retain the above copyright
13 14 * notice, this list of conditions and the following disclaimer.
14 15 * 2. Redistributions in binary form must reproduce the above copyright
15 16 * notice, this list of conditions and the following disclaimer in the
16 17 * documentation and/or other materials provided with the distribution.
17 18 * 4. Neither the name of the University nor the names of its contributors
18 19 * may be used to endorse or promote products derived from this software
19 20 * without specific prior written permission.
20 21 *
21 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 32 * SUCH DAMAGE.
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32 33 */
33 34
34 35 #include "lint.h"
35 36 #include "file64.h"
36 37 #include <errno.h>
37 38 #include <stdio.h>
38 39 #include <string.h>
39 40 #include <stdlib.h>
40 41 #include <sys/types.h>
41 42 #include <sys/stat.h>
43 +#include <sys/mman.h>
44 +#include <fcntl.h>
45 +#include <unistd.h>
42 46
43 47 #include "runetype.h"
44 48 #include "runefile.h"
45 49
46 -_RuneLocale *_Read_RuneMagi(FILE *);
47 -
48 50 _RuneLocale *
49 -_Read_RuneMagi(FILE *fp)
51 +_Read_RuneMagi(const char *fname)
50 52 {
51 53 char *fdata, *data;
52 54 void *lastp;
53 55 _FileRuneLocale *frl;
54 56 _RuneLocale *rl;
55 57 _FileRuneEntry *frr;
56 58 _RuneEntry *rr;
57 59 struct stat sb;
58 60 int x, saverr;
59 61 void *variable;
60 62 _FileRuneEntry *runetype_ext_ranges;
61 63 _FileRuneEntry *maplower_ext_ranges;
62 64 _FileRuneEntry *mapupper_ext_ranges;
63 65 int runetype_ext_len = 0;
66 + int fd;
64 67
65 - if (fstat(fileno(fp), &sb) < 0)
68 + if ((fd = open(fname, O_RDONLY)) < 0) {
69 + errno = EINVAL;
66 70 return (NULL);
71 + }
67 72
68 - if ((size_t)sb.st_size < sizeof (_FileRuneLocale)) {
73 + if (fstat(fd, &sb) < 0) {
74 + (void) close(fd);
69 75 errno = EINVAL;
70 76 return (NULL);
71 77 }
72 78
73 - if ((fdata = malloc(sb.st_size)) == NULL)
79 + if ((size_t)sb.st_size < sizeof (_FileRuneLocale)) {
80 + (void) close(fd);
81 + errno = EINVAL;
74 82 return (NULL);
75 -
76 - errno = 0;
77 - rewind(fp); /* Someone might have read the magic number once already */
78 - if (errno) {
79 - saverr = errno;
80 - free(fdata);
81 - errno = saverr;
82 - return (NULL);
83 83 }
84 84
85 - if (fread(fdata, sb.st_size, 1, fp) != 1) {
86 - saverr = errno;
87 - free(fdata);
88 - errno = saverr;
85 +
86 + fdata = mmap(NULL, sb.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
87 + (void) close(fd);
88 + if (fdata == NULL) {
89 + errno = EINVAL;
89 90 return (NULL);
90 91 }
91 92
92 93 frl = (_FileRuneLocale *)(void *)fdata;
93 94 lastp = fdata + sb.st_size;
94 95
95 96 variable = frl + 1;
96 97
97 98 if (memcmp(frl->magic, _FILE_RUNE_MAGIC_1, sizeof (frl->magic))) {
98 - free(fdata);
99 - errno = EINVAL;
100 - return (NULL);
99 + goto invalid;
101 100 }
102 101
103 102 runetype_ext_ranges = (_FileRuneEntry *)variable;
104 103 variable = runetype_ext_ranges + frl->runetype_ext_nranges;
105 104 if (variable > lastp) {
106 - free(fdata);
107 - errno = EINVAL;
108 - return (NULL);
105 + goto invalid;
109 106 }
110 107
111 108 maplower_ext_ranges = (_FileRuneEntry *)variable;
112 109 variable = maplower_ext_ranges + frl->maplower_ext_nranges;
113 110 if (variable > lastp) {
114 - free(fdata);
115 - errno = EINVAL;
116 - return (NULL);
111 + goto invalid;
117 112 }
118 113
119 114 mapupper_ext_ranges = (_FileRuneEntry *)variable;
120 115 variable = mapupper_ext_ranges + frl->mapupper_ext_nranges;
121 116 if (variable > lastp) {
122 - free(fdata);
123 - errno = EINVAL;
124 - return (NULL);
117 + goto invalid;
125 118 }
126 119
127 120 frr = runetype_ext_ranges;
128 121 for (x = 0; x < frl->runetype_ext_nranges; ++x) {
129 122 uint32_t *types;
130 123
131 124 if (frr[x].map == 0) {
132 125 int len = frr[x].max - frr[x].min + 1;
133 126 types = variable;
134 127 variable = types + len;
135 128 runetype_ext_len += len;
136 129 if (variable > lastp) {
137 - free(fdata);
138 - errno = EINVAL;
139 - return (NULL);
130 + goto invalid;
140 131 }
141 132 }
142 133 }
143 134
144 135 if ((char *)variable + frl->variable_len > (char *)lastp) {
145 - free(fdata);
146 - errno = EINVAL;
147 - return (NULL);
136 + goto invalid;
148 137 }
149 138
150 139 /*
151 140 * Convert from disk format to host format.
152 141 */
153 142 data = malloc(sizeof (_RuneLocale) +
154 143 (frl->runetype_ext_nranges + frl->maplower_ext_nranges +
155 144 frl->mapupper_ext_nranges) * sizeof (_RuneEntry) +
156 145 runetype_ext_len * sizeof (*rr->__types) +
157 146 frl->variable_len);
158 147 if (data == NULL) {
159 148 saverr = errno;
160 - free(fdata);
149 + (void) munmap(fdata, sb.st_size);
161 150 errno = saverr;
162 151 return (NULL);
163 152 }
164 153
165 154 rl = (_RuneLocale *)(void *)data;
166 155 rl->__variable = rl + 1;
167 156
168 157 (void) memcpy(rl->__magic, _RUNE_MAGIC_1, sizeof (rl->__magic));
169 158 (void) memcpy(rl->__encoding, frl->encoding, sizeof (rl->__encoding));
170 159
171 160 rl->__variable_len = frl->variable_len;
172 161 rl->__runetype_ext.__nranges = frl->runetype_ext_nranges;
173 162 rl->__maplower_ext.__nranges = frl->maplower_ext_nranges;
174 163 rl->__mapupper_ext.__nranges = frl->mapupper_ext_nranges;
175 164
176 165 for (x = 0; x < _CACHED_RUNES; ++x) {
177 166 rl->__runetype[x] = frl->runetype[x];
178 167 rl->__maplower[x] = frl->maplower[x];
179 168 rl->__mapupper[x] = frl->mapupper[x];
180 169 }
181 170
182 171 rl->__runetype_ext.__ranges = (_RuneEntry *)rl->__variable;
183 172 rl->__variable = rl->__runetype_ext.__ranges +
184 173 rl->__runetype_ext.__nranges;
185 174
186 175 rl->__maplower_ext.__ranges = (_RuneEntry *)rl->__variable;
187 176 rl->__variable = rl->__maplower_ext.__ranges +
188 177 rl->__maplower_ext.__nranges;
189 178
190 179 rl->__mapupper_ext.__ranges = (_RuneEntry *)rl->__variable;
191 180 rl->__variable = rl->__mapupper_ext.__ranges +
192 181 rl->__mapupper_ext.__nranges;
193 182
194 183 variable = mapupper_ext_ranges + frl->mapupper_ext_nranges;
195 184 frr = runetype_ext_ranges;
196 185 rr = rl->__runetype_ext.__ranges;
197 186 for (x = 0; x < rl->__runetype_ext.__nranges; ++x) {
198 187 uint32_t *types;
199 188
200 189 rr[x].__min = frr[x].min;
201 190 rr[x].__max = frr[x].max;
202 191 rr[x].__map = frr[x].map;
203 192 if (rr[x].__map == 0) {
204 193 int len = rr[x].__max - rr[x].__min + 1;
205 194 types = variable;
206 195 variable = types + len;
207 196 rr[x].__types = rl->__variable;
208 197 rl->__variable = rr[x].__types + len;
209 198 while (len-- > 0)
210 199 rr[x].__types[len] = types[len];
211 200 } else
212 201 rr[x].__types = NULL;
213 202 }
214 203
215 204 frr = maplower_ext_ranges;
216 205 rr = rl->__maplower_ext.__ranges;
217 206 for (x = 0; x < rl->__maplower_ext.__nranges; ++x) {
218 207 rr[x].__min = frr[x].min;
219 208 rr[x].__max = frr[x].max;
220 209 rr[x].__map = frr[x].map;
221 210 }
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222 211
223 212 frr = mapupper_ext_ranges;
224 213 rr = rl->__mapupper_ext.__ranges;
225 214 for (x = 0; x < rl->__mapupper_ext.__nranges; ++x) {
226 215 rr[x].__min = frr[x].min;
227 216 rr[x].__max = frr[x].max;
228 217 rr[x].__map = frr[x].map;
229 218 }
230 219
231 220 (void) memcpy(rl->__variable, variable, rl->__variable_len);
232 - free(fdata);
221 + (void) munmap(fdata, sb.st_size);
233 222
234 223 /*
235 224 * Go out and zero pointers that should be zero.
236 225 */
237 226 if (!rl->__variable_len)
238 227 rl->__variable = NULL;
239 228
240 229 if (!rl->__runetype_ext.__nranges)
241 230 rl->__runetype_ext.__ranges = NULL;
242 231
243 232 if (!rl->__maplower_ext.__nranges)
244 233 rl->__maplower_ext.__ranges = NULL;
245 234
246 235 if (!rl->__mapupper_ext.__nranges)
247 236 rl->__mapupper_ext.__ranges = NULL;
248 237
249 238 return (rl);
239 +
240 +invalid:
241 + (void) munmap(fdata, sb.st_size);
242 + errno = EINVAL;
243 + return (NULL);
250 244 }
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