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"
51 __weak_alias(libiconv, _iconv)
52 __weak_alias(libiconv_open, _iconv_open)
53 __weak_alias(libiconv_open_into, _iconv_open_into)
54 __weak_alias(libiconv_close, _iconv_close)
55 __weak_alias(libiconvlist, _iconvlist)
56 __weak_alias(libiconvctl, _iconvctl)
57 __weak_alias(libiconv_set_relocation_prefix, _iconv_set_relocation_prefix)
58 __weak_alias(iconv_canonicalize, _iconv_canonicalize)
61 #define ISBADF(_h_) (!(_h_) || (_h_) == (iconv_t)-1)
63 int _libiconv_version = _LIBICONV_VERSION;
65 iconv_t _iconv_open(const char *out, const char *in,
66 struct _citrus_iconv *prealloc);
69 _iconv_open(const char *out, const char *in, struct _citrus_iconv *prealloc)
71 struct _citrus_iconv *handle;
72 char *out_truncated, *p;
78 * Remove anything following a //, as these are options (like
79 * //ignore, //translate, etc) and we just don't handle them.
80 * This is for compatibilty with software that uses thees
83 out_truncated = strdup(out);
84 if (out_truncated == NULL) {
91 if (p[0] == '/' && p[1] == '/') {
98 ret = _citrus_iconv_open(&handle, in, out_truncated);
101 errno = ret == ENOENT ? EINVAL : ret;
102 return ((iconv_t)-1);
105 handle->cv_shared->ci_discard_ilseq = strcasestr(out, "//IGNORE");
106 handle->cv_shared->ci_hooks = NULL;
108 return ((iconv_t)(void *)handle);
112 libiconv_open(const char *out, const char *in)
115 return (_iconv_open(out, in, NULL));
119 libiconv_open_into(const char *out, const char *in, iconv_allocation_t *ptr)
121 struct _citrus_iconv *handle;
123 handle = (struct _citrus_iconv *)ptr;
124 return ((_iconv_open(out, in, handle) == (iconv_t)-1) ? -1 : 0);
128 libiconv_close(iconv_t handle)
131 if (ISBADF(handle)) {
136 _citrus_iconv_close((struct _citrus_iconv *)(void *)handle);
142 libiconv(iconv_t handle, char **in, size_t *szin, char **out, size_t *szout)
147 if (ISBADF(handle)) {
152 err = _citrus_iconv_convert((struct _citrus_iconv *)(void *)handle,
153 in, szin, out, szout, 0, &ret);
163 __iconv(iconv_t handle, char **in, size_t *szin, char **out,
164 size_t *szout, uint32_t flags, size_t *invalids)
169 if (ISBADF(handle)) {
174 err = _citrus_iconv_convert((struct _citrus_iconv *)(void *)handle,
175 in, szin, out, szout, flags, &ret);
187 __iconv_get_list(char ***rlist, size_t *rsz, bool sorted)
191 ret = _citrus_esdb_get_list(rlist, rsz, sorted);
201 __iconv_free_list(char **list, size_t sz)
204 _citrus_esdb_free_list(list, sz);
208 * GNU-compatibile non-standard interfaces.
211 qsort_helper(const void *first, const void *second)
213 const char * const *s1;
214 const char * const *s2;
218 return (strcmp(*s1, *s2));
222 libiconvlist(int (*do_one) (unsigned int, const char * const *,
225 char **list, **names;
226 const char * const *np;
227 char *curitem, *curkey, *slashpos;
233 if (__iconv_get_list(&list, &sz, true))
235 qsort((void *)list, sz, sizeof(char *), qsort_helper);
238 slashpos = strchr(list[i], '/');
239 curkey = (char *)malloc(slashpos - list[i] + 2);
240 names = (char **)malloc(sz * sizeof(char *));
241 if ((curkey == NULL) || (names == NULL)) {
242 __iconv_free_list(list, sz);
245 strlcpy(curkey, list[i], slashpos - list[i] + 1);
246 names[j++] = strdup(curkey);
247 for (; (i < sz) && (memcmp(curkey, list[i], strlen(curkey)) == 0); i++) {
248 slashpos = strchr(list[i], '/');
249 curitem = (char *)malloc(strlen(slashpos) + 1);
250 if (curitem == NULL) {
251 __iconv_free_list(list, sz);
254 strlcpy(curitem, &slashpos[1], strlen(slashpos) + 1);
255 if (strcmp(curkey, curitem) == 0) {
258 names[j++] = strdup(curitem);
260 np = (const char * const *)names;
265 __iconv_free_list(list, sz);
269 *iconv_canonicalize(const char *name)
272 return (_citrus_iconv_canonicalize(name));
276 libiconvctl(iconv_t cd, int request, void *argument)
278 struct _citrus_iconv *cv;
279 struct iconv_hooks *hooks;
280 const char *convname;
281 char src[PATH_MAX], *dst;
284 cv = (struct _citrus_iconv *)(void *)cd;
285 hooks = (struct iconv_hooks *)argument;
295 convname = cv->cv_shared->ci_convname;
296 dst = strchr(convname, '/');
298 strlcpy(src, convname, dst - convname + 1);
300 if ((convname == NULL) || (src == NULL) || (dst == NULL))
302 *i = strcmp(src, dst) == 0 ? 1 : 0;
304 case ICONV_GET_TRANSLITERATE:
307 case ICONV_SET_TRANSLITERATE:
308 return ((*i == 1) ? 0 : -1);
309 case ICONV_GET_DISCARD_ILSEQ:
310 *i = cv->cv_shared->ci_discard_ilseq ? 1 : 0;
312 case ICONV_SET_DISCARD_ILSEQ:
313 cv->cv_shared->ci_discard_ilseq = *i;
315 case ICONV_SET_HOOKS:
316 cv->cv_shared->ci_hooks = hooks;
318 case ICONV_SET_FALLBACKS:
328 libiconv_set_relocation_prefix(const char *orig_prefix __unused,
329 const char *curr_prefix __unused)