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4a4d50f3 | 1 | /* Copyright (C) 1995-1999, 2000, 2001 Free Software Foundation, Inc. |
41bdb6e2 | 2 | This file is part of the GNU C Library. |
e4cf5070 | 3 | Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. |
7a12c6bb | 4 | |
e4cf5070 | 5 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
7a12c6bb | 9 | |
e4cf5070 UD |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
7a12c6bb | 14 | |
41bdb6e2 AJ |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, write to the Free | |
17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
18 | 02111-1307 USA. */ | |
7a12c6bb | 19 | |
0a55a284 UD |
20 | /* Tell glibc's <string.h> to provide a prototype for stpcpy(). |
21 | This must come before <config.h> because <config.h> may include | |
22 | <features.h>, and once <features.h> has been included, it's too late. */ | |
23 | #ifndef _GNU_SOURCE | |
24 | # define _GNU_SOURCE 1 | |
25 | #endif | |
26 | ||
92f3773b RM |
27 | #ifdef HAVE_CONFIG_H |
28 | # include <config.h> | |
29 | #endif | |
30 | ||
92f3773b RM |
31 | |
32 | #if defined HAVE_STRING_H || defined _LIBC | |
33 | # include <string.h> | |
34 | #else | |
35 | # include <strings.h> | |
8f2ece69 | 36 | # ifndef memcpy |
61402fd6 | 37 | # define memcpy(Dst, Src, Num) (bcopy (Src, Dst, Num), (Dst)) |
8f2ece69 | 38 | # endif |
92f3773b RM |
39 | #endif |
40 | #if !HAVE_STRCHR && !defined _LIBC | |
41 | # ifndef strchr | |
42 | # define strchr index | |
43 | # endif | |
44 | #endif | |
7a12c6bb | 45 | |
96e1bff2 RM |
46 | #if defined _LIBC || defined HAVE_ARGZ_H |
47 | # include <argz.h> | |
48 | #endif | |
49 | #include <ctype.h> | |
0c5ecdc4 | 50 | #include <sys/types.h> |
96e1bff2 RM |
51 | |
52 | #if defined STDC_HEADERS || defined _LIBC | |
53 | # include <stdlib.h> | |
54 | #endif | |
55 | ||
7a12c6bb RM |
56 | #include "loadinfo.h" |
57 | ||
842907c6 RM |
58 | /* On some strange systems still no definition of NULL is found. Sigh! */ |
59 | #ifndef NULL | |
60 | # if defined __STDC__ && __STDC__ | |
61 | # define NULL ((void *) 0) | |
62 | # else | |
63 | # define NULL 0 | |
64 | # endif | |
65 | #endif | |
66 | ||
92f3773b RM |
67 | /* @@ end of prolog @@ */ |
68 | ||
69 | #ifdef _LIBC | |
70 | /* Rename the non ANSI C functions. This is required by the standard | |
71 | because some ANSI C functions will require linking with this object | |
72 | file and the name space must not be polluted. */ | |
9a0a462c UD |
73 | # ifndef stpcpy |
74 | # define stpcpy(dest, src) __stpcpy(dest, src) | |
75 | # endif | |
92f3773b RM |
76 | #else |
77 | # ifndef HAVE_STPCPY | |
78 | static char *stpcpy PARAMS ((char *dest, const char *src)); | |
79 | # endif | |
80 | #endif | |
81 | ||
5f2eab42 RM |
82 | /* Define function which are usually not available. */ |
83 | ||
842907c6 | 84 | #if !defined _LIBC && !defined HAVE___ARGZ_COUNT |
5f2eab42 | 85 | /* Returns the number of strings in ARGZ. */ |
842907c6 | 86 | static size_t argz_count__ PARAMS ((const char *argz, size_t len)); |
5f2eab42 RM |
87 | |
88 | static size_t | |
842907c6 | 89 | argz_count__ (argz, len) |
5f2eab42 RM |
90 | const char *argz; |
91 | size_t len; | |
92 | { | |
93 | size_t count = 0; | |
94 | while (len > 0) | |
95 | { | |
92f3773b | 96 | size_t part_len = strlen (argz); |
5f2eab42 RM |
97 | argz += part_len + 1; |
98 | len -= part_len + 1; | |
99 | count++; | |
100 | } | |
101 | return count; | |
102 | } | |
842907c6 RM |
103 | # undef __argz_count |
104 | # define __argz_count(argz, len) argz_count__ (argz, len) | |
105 | #endif /* !_LIBC && !HAVE___ARGZ_COUNT */ | |
5f2eab42 | 106 | |
842907c6 | 107 | #if !defined _LIBC && !defined HAVE___ARGZ_STRINGIFY |
5f2eab42 RM |
108 | /* Make '\0' separated arg vector ARGZ printable by converting all the '\0's |
109 | except the last into the character SEP. */ | |
842907c6 | 110 | static void argz_stringify__ PARAMS ((char *argz, size_t len, int sep)); |
5f2eab42 RM |
111 | |
112 | static void | |
842907c6 | 113 | argz_stringify__ (argz, len, sep) |
5f2eab42 RM |
114 | char *argz; |
115 | size_t len; | |
116 | int sep; | |
117 | { | |
118 | while (len > 0) | |
119 | { | |
92f3773b | 120 | size_t part_len = strlen (argz); |
5f2eab42 RM |
121 | argz += part_len; |
122 | len -= part_len + 1; | |
123 | if (len > 0) | |
124 | *argz++ = sep; | |
125 | } | |
126 | } | |
842907c6 RM |
127 | # undef __argz_stringify |
128 | # define __argz_stringify(argz, len, sep) argz_stringify__ (argz, len, sep) | |
129 | #endif /* !_LIBC && !HAVE___ARGZ_STRINGIFY */ | |
130 | ||
131 | #if !defined _LIBC && !defined HAVE___ARGZ_NEXT | |
132 | static char *argz_next__ PARAMS ((char *argz, size_t argz_len, | |
133 | const char *entry)); | |
5f2eab42 | 134 | |
5f2eab42 | 135 | static char * |
842907c6 | 136 | argz_next__ (argz, argz_len, entry) |
92f3773b RM |
137 | char *argz; |
138 | size_t argz_len; | |
139 | const char *entry; | |
5f2eab42 RM |
140 | { |
141 | if (entry) | |
142 | { | |
143 | if (entry < argz + argz_len) | |
144 | entry = strchr (entry, '\0') + 1; | |
145 | ||
146 | return entry >= argz + argz_len ? NULL : (char *) entry; | |
147 | } | |
148 | else | |
149 | if (argz_len > 0) | |
150 | return argz; | |
151 | else | |
152 | return 0; | |
153 | } | |
842907c6 RM |
154 | # undef __argz_next |
155 | # define __argz_next(argz, len, entry) argz_next__ (argz, len, entry) | |
156 | #endif /* !_LIBC && !HAVE___ARGZ_NEXT */ | |
5f2eab42 RM |
157 | |
158 | ||
7a12c6bb | 159 | /* Return number of bits set in X. */ |
92f3773b | 160 | static int pop PARAMS ((int x)); |
7a12c6bb RM |
161 | |
162 | static inline int | |
163 | pop (x) | |
164 | int x; | |
165 | { | |
166 | /* We assume that no more than 16 bits are used. */ | |
167 | x = ((x & ~0x5555) >> 1) + (x & 0x5555); | |
168 | x = ((x & ~0x3333) >> 2) + (x & 0x3333); | |
169 | x = ((x >> 4) + x) & 0x0f0f; | |
170 | x = ((x >> 8) + x) & 0xff; | |
171 | ||
172 | return x; | |
173 | } | |
174 | ||
5f2eab42 | 175 | \f |
7a12c6bb RM |
176 | struct loaded_l10nfile * |
177 | _nl_make_l10nflist (l10nfile_list, dirlist, dirlist_len, mask, language, | |
178 | territory, codeset, normalized_codeset, modifier, special, | |
c44a663d | 179 | sponsor, revision, filename, do_allocate) |
7a12c6bb RM |
180 | struct loaded_l10nfile **l10nfile_list; |
181 | const char *dirlist; | |
182 | size_t dirlist_len; | |
183 | int mask; | |
184 | const char *language; | |
185 | const char *territory; | |
186 | const char *codeset; | |
187 | const char *normalized_codeset; | |
188 | const char *modifier; | |
189 | const char *special; | |
190 | const char *sponsor; | |
191 | const char *revision; | |
192 | const char *filename; | |
193 | int do_allocate; | |
194 | { | |
195 | char *abs_filename; | |
196 | struct loaded_l10nfile *last = NULL; | |
197 | struct loaded_l10nfile *retval; | |
198 | char *cp; | |
199 | size_t entries; | |
200 | int cnt; | |
201 | ||
202 | /* Allocate room for the full file name. */ | |
203 | abs_filename = (char *) malloc (dirlist_len | |
204 | + strlen (language) | |
205 | + ((mask & TERRITORY) != 0 | |
206 | ? strlen (territory) + 1 : 0) | |
207 | + ((mask & XPG_CODESET) != 0 | |
208 | ? strlen (codeset) + 1 : 0) | |
209 | + ((mask & XPG_NORM_CODESET) != 0 | |
210 | ? strlen (normalized_codeset) + 1 : 0) | |
211 | + (((mask & XPG_MODIFIER) != 0 | |
47707456 UD |
212 | || (mask & CEN_AUDIENCE) != 0) |
213 | ? strlen (modifier) + 1 : 0) | |
7a12c6bb RM |
214 | + ((mask & CEN_SPECIAL) != 0 |
215 | ? strlen (special) + 1 : 0) | |
1fb05e3d UD |
216 | + (((mask & CEN_SPONSOR) != 0 |
217 | || (mask & CEN_REVISION) != 0) | |
e4cf5070 UD |
218 | ? (1 + ((mask & CEN_SPONSOR) != 0 |
219 | ? strlen (sponsor) + 1 : 0) | |
220 | + ((mask & CEN_REVISION) != 0 | |
221 | ? strlen (revision) + 1 : 0)) : 0) | |
7a12c6bb RM |
222 | + 1 + strlen (filename) + 1); |
223 | ||
224 | if (abs_filename == NULL) | |
225 | return NULL; | |
226 | ||
227 | retval = NULL; | |
228 | last = NULL; | |
229 | ||
230 | /* Construct file name. */ | |
231 | memcpy (abs_filename, dirlist, dirlist_len); | |
232 | __argz_stringify (abs_filename, dirlist_len, ':'); | |
233 | cp = abs_filename + (dirlist_len - 1); | |
234 | *cp++ = '/'; | |
235 | cp = stpcpy (cp, language); | |
236 | ||
237 | if ((mask & TERRITORY) != 0) | |
238 | { | |
239 | *cp++ = '_'; | |
240 | cp = stpcpy (cp, territory); | |
241 | } | |
242 | if ((mask & XPG_CODESET) != 0) | |
243 | { | |
244 | *cp++ = '.'; | |
245 | cp = stpcpy (cp, codeset); | |
246 | } | |
247 | if ((mask & XPG_NORM_CODESET) != 0) | |
248 | { | |
249 | *cp++ = '.'; | |
250 | cp = stpcpy (cp, normalized_codeset); | |
251 | } | |
252 | if ((mask & (XPG_MODIFIER | CEN_AUDIENCE)) != 0) | |
253 | { | |
254 | /* This component can be part of both syntaces but has different | |
255 | leading characters. For CEN we use `+', else `@'. */ | |
256 | *cp++ = (mask & CEN_AUDIENCE) != 0 ? '+' : '@'; | |
257 | cp = stpcpy (cp, modifier); | |
258 | } | |
259 | if ((mask & CEN_SPECIAL) != 0) | |
260 | { | |
261 | *cp++ = '+'; | |
262 | cp = stpcpy (cp, special); | |
263 | } | |
e4cf5070 | 264 | if ((mask & (CEN_SPONSOR | CEN_REVISION)) != 0) |
7a12c6bb RM |
265 | { |
266 | *cp++ = ','; | |
e4cf5070 UD |
267 | if ((mask & CEN_SPONSOR) != 0) |
268 | cp = stpcpy (cp, sponsor); | |
269 | if ((mask & CEN_REVISION) != 0) | |
270 | { | |
271 | *cp++ = '_'; | |
272 | cp = stpcpy (cp, revision); | |
273 | } | |
7a12c6bb RM |
274 | } |
275 | ||
276 | *cp++ = '/'; | |
277 | stpcpy (cp, filename); | |
278 | ||
279 | /* Look in list of already loaded domains whether it is already | |
280 | available. */ | |
281 | last = NULL; | |
282 | for (retval = *l10nfile_list; retval != NULL; retval = retval->next) | |
283 | if (retval->filename != NULL) | |
284 | { | |
285 | int compare = strcmp (retval->filename, abs_filename); | |
286 | if (compare == 0) | |
287 | /* We found it! */ | |
288 | break; | |
289 | if (compare < 0) | |
290 | { | |
291 | /* It's not in the list. */ | |
292 | retval = NULL; | |
293 | break; | |
294 | } | |
295 | ||
296 | last = retval; | |
297 | } | |
298 | ||
299 | if (retval != NULL || do_allocate == 0) | |
300 | { | |
301 | free (abs_filename); | |
302 | return retval; | |
303 | } | |
304 | ||
305 | retval = (struct loaded_l10nfile *) | |
306 | malloc (sizeof (*retval) + (__argz_count (dirlist, dirlist_len) | |
307 | * (1 << pop (mask)) | |
308 | * sizeof (struct loaded_l10nfile *))); | |
309 | if (retval == NULL) | |
310 | return NULL; | |
311 | ||
312 | retval->filename = abs_filename; | |
313 | retval->decided = (__argz_count (dirlist, dirlist_len) != 1 | |
314 | || ((mask & XPG_CODESET) != 0 | |
315 | && (mask & XPG_NORM_CODESET) != 0)); | |
316 | retval->data = NULL; | |
317 | ||
318 | if (last == NULL) | |
319 | { | |
320 | retval->next = *l10nfile_list; | |
321 | *l10nfile_list = retval; | |
322 | } | |
323 | else | |
324 | { | |
325 | retval->next = last->next; | |
326 | last->next = retval; | |
327 | } | |
328 | ||
329 | entries = 0; | |
6d52618b UD |
330 | /* If the DIRLIST is a real list the RETVAL entry corresponds not to |
331 | a real file. So we have to use the DIRLIST separation mechanism | |
7a12c6bb RM |
332 | of the inner loop. */ |
333 | cnt = __argz_count (dirlist, dirlist_len) == 1 ? mask - 1 : mask; | |
334 | for (; cnt >= 0; --cnt) | |
335 | if ((cnt & ~mask) == 0 | |
336 | && ((cnt & CEN_SPECIFIC) == 0 || (cnt & XPG_SPECIFIC) == 0) | |
337 | && ((cnt & XPG_CODESET) == 0 || (cnt & XPG_NORM_CODESET) == 0)) | |
338 | { | |
339 | /* Iterate over all elements of the DIRLIST. */ | |
340 | char *dir = NULL; | |
341 | ||
342 | while ((dir = __argz_next ((char *) dirlist, dirlist_len, dir)) | |
343 | != NULL) | |
344 | retval->successor[entries++] | |
345 | = _nl_make_l10nflist (l10nfile_list, dir, strlen (dir) + 1, cnt, | |
346 | language, territory, codeset, | |
347 | normalized_codeset, modifier, special, | |
c44a663d | 348 | sponsor, revision, filename, 1); |
7a12c6bb RM |
349 | } |
350 | retval->successor[entries] = NULL; | |
351 | ||
352 | return retval; | |
353 | } | |
354 | \f | |
355 | /* Normalize codeset name. There is no standard for the codeset | |
356 | names. Normalization allows the user to use any of the common | |
727211c4 UD |
357 | names. The return value is dynamically allocated and has to be |
358 | freed by the caller. */ | |
7a12c6bb RM |
359 | const char * |
360 | _nl_normalize_codeset (codeset, name_len) | |
8cb569b7 | 361 | const char *codeset; |
7a12c6bb RM |
362 | size_t name_len; |
363 | { | |
364 | int len = 0; | |
365 | int only_digit = 1; | |
366 | char *retval; | |
367 | char *wp; | |
368 | size_t cnt; | |
369 | ||
370 | for (cnt = 0; cnt < name_len; ++cnt) | |
371 | if (isalnum (codeset[cnt])) | |
372 | { | |
373 | ++len; | |
374 | ||
375 | if (isalpha (codeset[cnt])) | |
376 | only_digit = 0; | |
377 | } | |
378 | ||
379 | retval = (char *) malloc ((only_digit ? 3 : 0) + len + 1); | |
380 | ||
381 | if (retval != NULL) | |
382 | { | |
383 | if (only_digit) | |
57ba7bb4 | 384 | wp = stpcpy (retval, "iso"); |
7a12c6bb RM |
385 | else |
386 | wp = retval; | |
387 | ||
388 | for (cnt = 0; cnt < name_len; ++cnt) | |
389 | if (isalpha (codeset[cnt])) | |
4a4d50f3 | 390 | *wp++ = tolower (codeset[cnt]); |
7a12c6bb RM |
391 | else if (isdigit (codeset[cnt])) |
392 | *wp++ = codeset[cnt]; | |
393 | ||
394 | *wp = '\0'; | |
395 | } | |
396 | ||
397 | return (const char *) retval; | |
398 | } | |
92f3773b RM |
399 | |
400 | ||
401 | /* @@ begin of epilog @@ */ | |
402 | ||
403 | /* We don't want libintl.a to depend on any other library. So we | |
404 | avoid the non-standard function stpcpy. In GNU C Library this | |
405 | function is available, though. Also allow the symbol HAVE_STPCPY | |
406 | to be defined. */ | |
407 | #if !_LIBC && !HAVE_STPCPY | |
408 | static char * | |
409 | stpcpy (dest, src) | |
410 | char *dest; | |
411 | const char *src; | |
412 | { | |
413 | while ((*dest++ = *src++) != '\0') | |
414 | /* Do nothing. */ ; | |
415 | return dest - 1; | |
416 | } | |
417 | #endif |