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4caef86c | 1 | /* Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc. |
e4cf5070 | 2 | Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. |
7a12c6bb | 3 | |
e4cf5070 | 4 | This file is part of the GNU C Library. Its master source is NOT part of |
40a55d20 | 5 | the C library, however. |
5f2eab42 | 6 | |
e4cf5070 UD |
7 | The GNU C Library is free software; you can redistribute it and/or |
8 | modify it under the terms of the GNU Library General Public License as | |
9 | published by the Free Software Foundation; either version 2 of the | |
10 | License, or (at your option) any later version. | |
7a12c6bb | 11 | |
e4cf5070 UD |
12 | The GNU C Library is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Library General Public License for more details. | |
7a12c6bb | 16 | |
e4cf5070 UD |
17 | You should have received a copy of the GNU Library General Public |
18 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
19 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
7a12c6bb | 21 | |
92f3773b RM |
22 | #ifdef HAVE_CONFIG_H |
23 | # include <config.h> | |
24 | #endif | |
25 | ||
92f3773b RM |
26 | |
27 | #if defined HAVE_STRING_H || defined _LIBC | |
842907c6 RM |
28 | # ifndef _GNU_SOURCE |
29 | # define _GNU_SOURCE 1 | |
30 | # endif | |
92f3773b RM |
31 | # include <string.h> |
32 | #else | |
33 | # include <strings.h> | |
8f2ece69 UD |
34 | # ifndef memcpy |
35 | # define memcpy(Dst, Src, Num) bcopy (Src, Dst, Num) | |
36 | # endif | |
92f3773b RM |
37 | #endif |
38 | #if !HAVE_STRCHR && !defined _LIBC | |
39 | # ifndef strchr | |
40 | # define strchr index | |
41 | # endif | |
42 | #endif | |
7a12c6bb | 43 | |
96e1bff2 RM |
44 | #if defined _LIBC || defined HAVE_ARGZ_H |
45 | # include <argz.h> | |
46 | #endif | |
47 | #include <ctype.h> | |
0c5ecdc4 | 48 | #include <sys/types.h> |
96e1bff2 RM |
49 | |
50 | #if defined STDC_HEADERS || defined _LIBC | |
51 | # include <stdlib.h> | |
52 | #endif | |
53 | ||
7a12c6bb RM |
54 | #include "loadinfo.h" |
55 | ||
842907c6 RM |
56 | /* On some strange systems still no definition of NULL is found. Sigh! */ |
57 | #ifndef NULL | |
58 | # if defined __STDC__ && __STDC__ | |
59 | # define NULL ((void *) 0) | |
60 | # else | |
61 | # define NULL 0 | |
62 | # endif | |
63 | #endif | |
64 | ||
92f3773b RM |
65 | /* @@ end of prolog @@ */ |
66 | ||
67 | #ifdef _LIBC | |
68 | /* Rename the non ANSI C functions. This is required by the standard | |
69 | because some ANSI C functions will require linking with this object | |
70 | file and the name space must not be polluted. */ | |
9a0a462c UD |
71 | # ifndef stpcpy |
72 | # define stpcpy(dest, src) __stpcpy(dest, src) | |
73 | # endif | |
92f3773b RM |
74 | #else |
75 | # ifndef HAVE_STPCPY | |
76 | static char *stpcpy PARAMS ((char *dest, const char *src)); | |
77 | # endif | |
78 | #endif | |
79 | ||
5f2eab42 RM |
80 | /* Define function which are usually not available. */ |
81 | ||
842907c6 | 82 | #if !defined _LIBC && !defined HAVE___ARGZ_COUNT |
5f2eab42 | 83 | /* Returns the number of strings in ARGZ. */ |
842907c6 | 84 | static size_t argz_count__ PARAMS ((const char *argz, size_t len)); |
5f2eab42 RM |
85 | |
86 | static size_t | |
842907c6 | 87 | argz_count__ (argz, len) |
5f2eab42 RM |
88 | const char *argz; |
89 | size_t len; | |
90 | { | |
91 | size_t count = 0; | |
92 | while (len > 0) | |
93 | { | |
92f3773b | 94 | size_t part_len = strlen (argz); |
5f2eab42 RM |
95 | argz += part_len + 1; |
96 | len -= part_len + 1; | |
97 | count++; | |
98 | } | |
99 | return count; | |
100 | } | |
842907c6 RM |
101 | # undef __argz_count |
102 | # define __argz_count(argz, len) argz_count__ (argz, len) | |
103 | #endif /* !_LIBC && !HAVE___ARGZ_COUNT */ | |
5f2eab42 | 104 | |
842907c6 | 105 | #if !defined _LIBC && !defined HAVE___ARGZ_STRINGIFY |
5f2eab42 RM |
106 | /* Make '\0' separated arg vector ARGZ printable by converting all the '\0's |
107 | except the last into the character SEP. */ | |
842907c6 | 108 | static void argz_stringify__ PARAMS ((char *argz, size_t len, int sep)); |
5f2eab42 RM |
109 | |
110 | static void | |
842907c6 | 111 | argz_stringify__ (argz, len, sep) |
5f2eab42 RM |
112 | char *argz; |
113 | size_t len; | |
114 | int sep; | |
115 | { | |
116 | while (len > 0) | |
117 | { | |
92f3773b | 118 | size_t part_len = strlen (argz); |
5f2eab42 RM |
119 | argz += part_len; |
120 | len -= part_len + 1; | |
121 | if (len > 0) | |
122 | *argz++ = sep; | |
123 | } | |
124 | } | |
842907c6 RM |
125 | # undef __argz_stringify |
126 | # define __argz_stringify(argz, len, sep) argz_stringify__ (argz, len, sep) | |
127 | #endif /* !_LIBC && !HAVE___ARGZ_STRINGIFY */ | |
128 | ||
129 | #if !defined _LIBC && !defined HAVE___ARGZ_NEXT | |
130 | static char *argz_next__ PARAMS ((char *argz, size_t argz_len, | |
131 | const char *entry)); | |
5f2eab42 | 132 | |
5f2eab42 | 133 | static char * |
842907c6 | 134 | argz_next__ (argz, argz_len, entry) |
92f3773b RM |
135 | char *argz; |
136 | size_t argz_len; | |
137 | const char *entry; | |
5f2eab42 RM |
138 | { |
139 | if (entry) | |
140 | { | |
141 | if (entry < argz + argz_len) | |
142 | entry = strchr (entry, '\0') + 1; | |
143 | ||
144 | return entry >= argz + argz_len ? NULL : (char *) entry; | |
145 | } | |
146 | else | |
147 | if (argz_len > 0) | |
148 | return argz; | |
149 | else | |
150 | return 0; | |
151 | } | |
842907c6 RM |
152 | # undef __argz_next |
153 | # define __argz_next(argz, len, entry) argz_next__ (argz, len, entry) | |
154 | #endif /* !_LIBC && !HAVE___ARGZ_NEXT */ | |
5f2eab42 RM |
155 | |
156 | ||
7a12c6bb | 157 | /* Return number of bits set in X. */ |
92f3773b | 158 | static int pop PARAMS ((int x)); |
7a12c6bb RM |
159 | |
160 | static inline int | |
161 | pop (x) | |
162 | int x; | |
163 | { | |
164 | /* We assume that no more than 16 bits are used. */ | |
165 | x = ((x & ~0x5555) >> 1) + (x & 0x5555); | |
166 | x = ((x & ~0x3333) >> 2) + (x & 0x3333); | |
167 | x = ((x >> 4) + x) & 0x0f0f; | |
168 | x = ((x >> 8) + x) & 0xff; | |
169 | ||
170 | return x; | |
171 | } | |
172 | ||
5f2eab42 | 173 | \f |
7a12c6bb RM |
174 | struct loaded_l10nfile * |
175 | _nl_make_l10nflist (l10nfile_list, dirlist, dirlist_len, mask, language, | |
176 | territory, codeset, normalized_codeset, modifier, special, | |
177 | sponsor, revision, filename, do_allocate) | |
178 | struct loaded_l10nfile **l10nfile_list; | |
179 | const char *dirlist; | |
180 | size_t dirlist_len; | |
181 | int mask; | |
182 | const char *language; | |
183 | const char *territory; | |
184 | const char *codeset; | |
185 | const char *normalized_codeset; | |
186 | const char *modifier; | |
187 | const char *special; | |
188 | const char *sponsor; | |
189 | const char *revision; | |
190 | const char *filename; | |
191 | int do_allocate; | |
192 | { | |
193 | char *abs_filename; | |
194 | struct loaded_l10nfile *last = NULL; | |
195 | struct loaded_l10nfile *retval; | |
196 | char *cp; | |
197 | size_t entries; | |
198 | int cnt; | |
199 | ||
200 | /* Allocate room for the full file name. */ | |
201 | abs_filename = (char *) malloc (dirlist_len | |
202 | + strlen (language) | |
203 | + ((mask & TERRITORY) != 0 | |
204 | ? strlen (territory) + 1 : 0) | |
205 | + ((mask & XPG_CODESET) != 0 | |
206 | ? strlen (codeset) + 1 : 0) | |
207 | + ((mask & XPG_NORM_CODESET) != 0 | |
208 | ? strlen (normalized_codeset) + 1 : 0) | |
209 | + (((mask & XPG_MODIFIER) != 0 | |
47707456 UD |
210 | || (mask & CEN_AUDIENCE) != 0) |
211 | ? strlen (modifier) + 1 : 0) | |
7a12c6bb RM |
212 | + ((mask & CEN_SPECIAL) != 0 |
213 | ? strlen (special) + 1 : 0) | |
1fb05e3d UD |
214 | + (((mask & CEN_SPONSOR) != 0 |
215 | || (mask & CEN_REVISION) != 0) | |
e4cf5070 UD |
216 | ? (1 + ((mask & CEN_SPONSOR) != 0 |
217 | ? strlen (sponsor) + 1 : 0) | |
218 | + ((mask & CEN_REVISION) != 0 | |
219 | ? strlen (revision) + 1 : 0)) : 0) | |
7a12c6bb RM |
220 | + 1 + strlen (filename) + 1); |
221 | ||
222 | if (abs_filename == NULL) | |
223 | return NULL; | |
224 | ||
225 | retval = NULL; | |
226 | last = NULL; | |
227 | ||
228 | /* Construct file name. */ | |
229 | memcpy (abs_filename, dirlist, dirlist_len); | |
230 | __argz_stringify (abs_filename, dirlist_len, ':'); | |
231 | cp = abs_filename + (dirlist_len - 1); | |
232 | *cp++ = '/'; | |
233 | cp = stpcpy (cp, language); | |
234 | ||
235 | if ((mask & TERRITORY) != 0) | |
236 | { | |
237 | *cp++ = '_'; | |
238 | cp = stpcpy (cp, territory); | |
239 | } | |
240 | if ((mask & XPG_CODESET) != 0) | |
241 | { | |
242 | *cp++ = '.'; | |
243 | cp = stpcpy (cp, codeset); | |
244 | } | |
245 | if ((mask & XPG_NORM_CODESET) != 0) | |
246 | { | |
247 | *cp++ = '.'; | |
248 | cp = stpcpy (cp, normalized_codeset); | |
249 | } | |
250 | if ((mask & (XPG_MODIFIER | CEN_AUDIENCE)) != 0) | |
251 | { | |
252 | /* This component can be part of both syntaces but has different | |
253 | leading characters. For CEN we use `+', else `@'. */ | |
254 | *cp++ = (mask & CEN_AUDIENCE) != 0 ? '+' : '@'; | |
255 | cp = stpcpy (cp, modifier); | |
256 | } | |
257 | if ((mask & CEN_SPECIAL) != 0) | |
258 | { | |
259 | *cp++ = '+'; | |
260 | cp = stpcpy (cp, special); | |
261 | } | |
e4cf5070 | 262 | if ((mask & (CEN_SPONSOR | CEN_REVISION)) != 0) |
7a12c6bb RM |
263 | { |
264 | *cp++ = ','; | |
e4cf5070 UD |
265 | if ((mask & CEN_SPONSOR) != 0) |
266 | cp = stpcpy (cp, sponsor); | |
267 | if ((mask & CEN_REVISION) != 0) | |
268 | { | |
269 | *cp++ = '_'; | |
270 | cp = stpcpy (cp, revision); | |
271 | } | |
7a12c6bb RM |
272 | } |
273 | ||
274 | *cp++ = '/'; | |
275 | stpcpy (cp, filename); | |
276 | ||
277 | /* Look in list of already loaded domains whether it is already | |
278 | available. */ | |
279 | last = NULL; | |
280 | for (retval = *l10nfile_list; retval != NULL; retval = retval->next) | |
281 | if (retval->filename != NULL) | |
282 | { | |
283 | int compare = strcmp (retval->filename, abs_filename); | |
284 | if (compare == 0) | |
285 | /* We found it! */ | |
286 | break; | |
287 | if (compare < 0) | |
288 | { | |
289 | /* It's not in the list. */ | |
290 | retval = NULL; | |
291 | break; | |
292 | } | |
293 | ||
294 | last = retval; | |
295 | } | |
296 | ||
297 | if (retval != NULL || do_allocate == 0) | |
298 | { | |
299 | free (abs_filename); | |
300 | return retval; | |
301 | } | |
302 | ||
303 | retval = (struct loaded_l10nfile *) | |
304 | malloc (sizeof (*retval) + (__argz_count (dirlist, dirlist_len) | |
305 | * (1 << pop (mask)) | |
306 | * sizeof (struct loaded_l10nfile *))); | |
307 | if (retval == NULL) | |
308 | return NULL; | |
309 | ||
310 | retval->filename = abs_filename; | |
311 | retval->decided = (__argz_count (dirlist, dirlist_len) != 1 | |
312 | || ((mask & XPG_CODESET) != 0 | |
313 | && (mask & XPG_NORM_CODESET) != 0)); | |
314 | retval->data = NULL; | |
315 | ||
316 | if (last == NULL) | |
317 | { | |
318 | retval->next = *l10nfile_list; | |
319 | *l10nfile_list = retval; | |
320 | } | |
321 | else | |
322 | { | |
323 | retval->next = last->next; | |
324 | last->next = retval; | |
325 | } | |
326 | ||
327 | entries = 0; | |
6d52618b UD |
328 | /* If the DIRLIST is a real list the RETVAL entry corresponds not to |
329 | a real file. So we have to use the DIRLIST separation mechanism | |
7a12c6bb RM |
330 | of the inner loop. */ |
331 | cnt = __argz_count (dirlist, dirlist_len) == 1 ? mask - 1 : mask; | |
332 | for (; cnt >= 0; --cnt) | |
333 | if ((cnt & ~mask) == 0 | |
334 | && ((cnt & CEN_SPECIFIC) == 0 || (cnt & XPG_SPECIFIC) == 0) | |
335 | && ((cnt & XPG_CODESET) == 0 || (cnt & XPG_NORM_CODESET) == 0)) | |
336 | { | |
337 | /* Iterate over all elements of the DIRLIST. */ | |
338 | char *dir = NULL; | |
339 | ||
340 | while ((dir = __argz_next ((char *) dirlist, dirlist_len, dir)) | |
341 | != NULL) | |
342 | retval->successor[entries++] | |
343 | = _nl_make_l10nflist (l10nfile_list, dir, strlen (dir) + 1, cnt, | |
344 | language, territory, codeset, | |
345 | normalized_codeset, modifier, special, | |
346 | sponsor, revision, filename, 1); | |
347 | } | |
348 | retval->successor[entries] = NULL; | |
349 | ||
350 | return retval; | |
351 | } | |
352 | \f | |
353 | /* Normalize codeset name. There is no standard for the codeset | |
354 | names. Normalization allows the user to use any of the common | |
355 | names. */ | |
356 | const char * | |
357 | _nl_normalize_codeset (codeset, name_len) | |
8cb569b7 | 358 | const char *codeset; |
7a12c6bb RM |
359 | size_t name_len; |
360 | { | |
361 | int len = 0; | |
362 | int only_digit = 1; | |
363 | char *retval; | |
364 | char *wp; | |
365 | size_t cnt; | |
366 | ||
367 | for (cnt = 0; cnt < name_len; ++cnt) | |
368 | if (isalnum (codeset[cnt])) | |
369 | { | |
370 | ++len; | |
371 | ||
372 | if (isalpha (codeset[cnt])) | |
373 | only_digit = 0; | |
374 | } | |
375 | ||
376 | retval = (char *) malloc ((only_digit ? 3 : 0) + len + 1); | |
377 | ||
378 | if (retval != NULL) | |
379 | { | |
380 | if (only_digit) | |
57ba7bb4 | 381 | wp = stpcpy (retval, "iso"); |
7a12c6bb RM |
382 | else |
383 | wp = retval; | |
384 | ||
385 | for (cnt = 0; cnt < name_len; ++cnt) | |
386 | if (isalpha (codeset[cnt])) | |
4caef86c | 387 | *wp++ = _tolower (codeset[cnt]); |
7a12c6bb RM |
388 | else if (isdigit (codeset[cnt])) |
389 | *wp++ = codeset[cnt]; | |
390 | ||
391 | *wp = '\0'; | |
392 | } | |
393 | ||
394 | return (const char *) retval; | |
395 | } | |
92f3773b RM |
396 | |
397 | ||
398 | /* @@ begin of epilog @@ */ | |
399 | ||
400 | /* We don't want libintl.a to depend on any other library. So we | |
401 | avoid the non-standard function stpcpy. In GNU C Library this | |
402 | function is available, though. Also allow the symbol HAVE_STPCPY | |
403 | to be defined. */ | |
404 | #if !_LIBC && !HAVE_STPCPY | |
405 | static char * | |
406 | stpcpy (dest, src) | |
407 | char *dest; | |
408 | const char *src; | |
409 | { | |
410 | while ((*dest++ = *src++) != '\0') | |
411 | /* Do nothing. */ ; | |
412 | return dest - 1; | |
413 | } | |
414 | #endif |