2 /* $NetBSD: iconv.c,v 1.11 2009/03/03 16:22:33 explorer Exp $ */
5 * Copyright (c) 2003 Citrus Project,
6 * Copyright (c) 2009, 2010 Gabor Kovesdan <gabor@FreeBSD.org>,
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include <sys/cdefs.h>
32 #include <sys/queue.h>
33 #include <sys/types.h>
44 #include "citrus_types.h"
45 #include "citrus_module.h"
46 #include "citrus_esdb.h"
47 #include "citrus_hash.h"
48 #include "citrus_iconv.h"
50 __weak_reference(libiconv, iconv);
51 __weak_reference(libiconv_open, iconv_open);
52 __weak_reference(libiconv_open_into, iconv_open_into);
53 __weak_reference(libiconv_close, iconv_close);
54 __weak_reference(libiconvlist, iconvlist);
55 __weak_reference(libiconvctl, iconvctl);
56 __weak_reference(libiconv_set_relocation_prefix, iconv_set_relocation_prefix);
58 #define ISBADF(_h_) (!(_h_) || (_h_) == (iconv_t)-1)
60 int _libiconv_version = _LIBICONV_VERSION;
62 iconv_t _iconv_open(const char *out, const char *in,
63 struct _citrus_iconv *prealloc);
66 _iconv_open(const char *out, const char *in, struct _citrus_iconv *handle)
68 const char *out_slashes;
73 * Remove anything following a //, as these are options (like
74 * //ignore, //translate, etc) and we just don't handle them.
75 * This is for compatibility with software that uses these
78 out_slashes = strstr(out, "//");
79 if (out_slashes != NULL) {
80 out_noslashes = strndup(out, out_slashes - out);
81 if (out_noslashes == NULL) {
85 ret = _citrus_iconv_open(&handle, in, out_noslashes);
88 ret = _citrus_iconv_open(&handle, in, out);
92 errno = ret == ENOENT ? EINVAL : ret;
96 handle->cv_shared->ci_discard_ilseq = strcasestr(out, "//IGNORE");
97 handle->cv_shared->ci_hooks = NULL;
99 return ((iconv_t)(void *)handle);
103 libiconv_open(const char *out, const char *in)
106 return (_iconv_open(out, in, NULL));
110 libiconv_open_into(const char *out, const char *in, iconv_allocation_t *ptr)
112 struct _citrus_iconv *handle;
114 handle = (struct _citrus_iconv *)ptr;
115 return ((_iconv_open(out, in, handle) == (iconv_t)-1) ? -1 : 0);
119 libiconv_close(iconv_t handle)
122 if (ISBADF(handle)) {
127 _citrus_iconv_close((struct _citrus_iconv *)(void *)handle);
133 libiconv(iconv_t handle, const char **in, size_t *szin, char **out, size_t *szout)
138 if (ISBADF(handle)) {
143 err = _citrus_iconv_convert((struct _citrus_iconv *)(void *)handle,
144 in, szin, out, szout, 0, &ret);
154 __iconv(iconv_t handle, const char **in, size_t *szin, char **out,
155 size_t *szout, uint32_t flags, size_t *invalids)
160 if (ISBADF(handle)) {
165 err = _citrus_iconv_convert((struct _citrus_iconv *)(void *)handle,
166 in, szin, out, szout, flags, &ret);
178 __iconv_get_list(char ***rlist, size_t *rsz, bool sorted)
182 ret = _citrus_esdb_get_list(rlist, rsz, sorted);
192 __iconv_free_list(char **list, size_t sz)
195 _citrus_esdb_free_list(list, sz);
199 * GNU-compatibile non-standard interfaces.
202 qsort_helper(const void *first, const void *second)
204 const char * const *s1;
205 const char * const *s2;
209 return (strcmp(*s1, *s2));
213 libiconvlist(int (*do_one) (unsigned int, const char * const *,
216 char **list, **names;
217 const char * const *np;
218 char *curitem, *curkey, *slashpos;
224 if (__iconv_get_list(&list, &sz, true))
226 qsort((void *)list, sz, sizeof(char *), qsort_helper);
229 slashpos = strchr(list[i], '/');
230 curkey = (char *)malloc(slashpos - list[i] + 2);
231 names = (char **)malloc(sz * sizeof(char *));
232 if ((curkey == NULL) || (names == NULL)) {
233 __iconv_free_list(list, sz);
236 strlcpy(curkey, list[i], slashpos - list[i] + 1);
237 names[j++] = strdup(curkey);
238 for (; (i < sz) && (memcmp(curkey, list[i], strlen(curkey)) == 0); i++) {
239 slashpos = strchr(list[i], '/');
240 curitem = (char *)malloc(strlen(slashpos) + 1);
241 if (curitem == NULL) {
242 __iconv_free_list(list, sz);
245 strlcpy(curitem, &slashpos[1], strlen(slashpos) + 1);
246 if (strcmp(curkey, curitem) == 0) {
249 names[j++] = strdup(curitem);
251 np = (const char * const *)names;
256 __iconv_free_list(list, sz);
260 *iconv_canonicalize(const char *name)
263 return (_citrus_iconv_canonicalize(name));
267 libiconvctl(iconv_t cd, int request, void *argument)
269 struct _citrus_iconv *cv;
270 struct iconv_hooks *hooks;
271 const char *convname;
272 char src[PATH_MAX], *dst;
275 cv = (struct _citrus_iconv *)(void *)cd;
276 hooks = (struct iconv_hooks *)argument;
286 convname = cv->cv_shared->ci_convname;
287 dst = strchr(convname, '/');
289 strlcpy(src, convname, dst - convname + 1);
291 if ((convname == NULL) || (src == NULL) || (dst == NULL))
293 *i = strcmp(src, dst) == 0 ? 1 : 0;
295 case ICONV_GET_TRANSLITERATE:
298 case ICONV_SET_TRANSLITERATE:
299 return ((*i == 1) ? 0 : -1);
300 case ICONV_GET_DISCARD_ILSEQ:
301 *i = cv->cv_shared->ci_discard_ilseq ? 1 : 0;
303 case ICONV_SET_DISCARD_ILSEQ:
304 cv->cv_shared->ci_discard_ilseq = *i;
306 case ICONV_SET_HOOKS:
307 cv->cv_shared->ci_hooks = hooks;
309 case ICONV_SET_FALLBACKS:
319 libiconv_set_relocation_prefix(const char *orig_prefix __unused,
320 const char *curr_prefix __unused)