1 /* $FreeBSD: head/lib/libc/iconv/iconv.c 254273 2013-08-13 07:15:01Z peter $ */
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/citrus_types.h"
45 #include "../citrus/citrus_module.h"
46 #include "../citrus/citrus_esdb.h"
47 #include "../citrus/citrus_hash.h"
48 #include "../citrus/citrus_iconv.h"
50 #define ISBADF(_h_) (!(_h_) || (_h_) == (iconv_t)-1)
52 int _iconv_version = _ICONV_VERSION;
54 iconv_t _iconv_open(const char *out, const char *in,
55 struct _citrus_iconv *prealloc);
58 _iconv_open(const char *out, const char *in, struct _citrus_iconv *handle)
60 const char *out_slashes;
65 * Remove anything following a //, as these are options (like
66 * //ignore, //translate, etc) and we just don't handle them.
67 * This is for compatibility with software that uses these
70 out_slashes = strstr(out, "//");
71 if (out_slashes != NULL) {
72 out_noslashes = strndup(out, out_slashes - out);
73 if (out_noslashes == NULL) {
77 ret = _citrus_iconv_open(&handle, in, out_noslashes);
80 ret = _citrus_iconv_open(&handle, in, out);
84 errno = ret == ENOENT ? EINVAL : ret;
88 handle->cv_shared->ci_discard_ilseq = strcasestr(out, "//IGNORE");
89 handle->cv_shared->ci_hooks = NULL;
91 return ((iconv_t)(void *)handle);
95 iconv_open(const char *out, const char *in)
98 return (_iconv_open(out, in, NULL));
102 iconv_open_into(const char *out, const char *in, iconv_allocation_t *ptr)
104 struct _citrus_iconv *handle;
106 handle = (struct _citrus_iconv *)ptr;
107 return ((_iconv_open(out, in, handle) == (iconv_t)-1) ? -1 : 0);
111 iconv_close(iconv_t handle)
114 if (ISBADF(handle)) {
119 _citrus_iconv_close((struct _citrus_iconv *)(void *)handle);
125 iconv(iconv_t handle, const char **in, size_t *szin, char **out, size_t *szout)
130 if (ISBADF(handle)) {
135 err = _citrus_iconv_convert((struct _citrus_iconv *)(void *)handle,
136 in, szin, out, szout, 0, &ret);
146 __iconv(iconv_t handle, const char **in, size_t *szin, char **out,
147 size_t *szout, uint32_t flags, size_t *invalids)
152 if (ISBADF(handle)) {
157 err = _citrus_iconv_convert((struct _citrus_iconv *)(void *)handle,
158 in, szin, out, szout, flags, &ret);
170 __iconv_get_list(char ***rlist, size_t *rsz, bool sorted)
174 ret = _citrus_esdb_get_list(rlist, rsz, sorted);
184 __iconv_free_list(char **list, size_t sz)
187 _citrus_esdb_free_list(list, sz);
191 * GNU-compatibile non-standard interfaces.
194 qsort_helper(const void *first, const void *second)
196 const char * const *s1;
197 const char * const *s2;
201 return (strcmp(*s1, *s2));
205 iconvlist(int (*do_one) (unsigned int, const char * const *,
208 char **list, **names;
209 const char * const *np;
210 char *curitem, *curkey, *slashpos;
216 if (__iconv_get_list(&list, &sz, true))
218 qsort((void *)list, sz, sizeof(char *), qsort_helper);
221 slashpos = strchr(list[i], '/');
222 curkey = (char *)malloc(slashpos - list[i] + 2);
223 names = (char **)malloc(sz * sizeof(char *));
224 if ((curkey == NULL) || (names == NULL)) {
225 __iconv_free_list(list, sz);
228 strlcpy(curkey, list[i], slashpos - list[i] + 1);
229 names[j++] = strdup(curkey);
230 for (; (i < sz) && (memcmp(curkey, list[i], strlen(curkey)) == 0); i++) {
231 slashpos = strchr(list[i], '/');
232 curitem = (char *)malloc(strlen(slashpos) + 1);
233 if (curitem == NULL) {
234 __iconv_free_list(list, sz);
237 strlcpy(curitem, &slashpos[1], strlen(slashpos) + 1);
238 if (strcmp(curkey, curitem) == 0) {
241 names[j++] = strdup(curitem);
243 np = (const char * const *)names;
248 __iconv_free_list(list, sz);
252 *iconv_canonicalize(const char *name)
255 return (_citrus_iconv_canonicalize(name));
259 iconvctl(iconv_t cd, int request, void *argument)
261 struct _citrus_iconv *cv;
262 struct iconv_hooks *hooks;
263 const char *convname;
264 char src[PATH_MAX], *dst;
267 cv = (struct _citrus_iconv *)(void *)cd;
268 hooks = (struct iconv_hooks *)argument;
278 convname = cv->cv_shared->ci_convname;
279 dst = strchr(convname, '/');
281 strlcpy(src, convname, dst - convname + 1);
283 if ((convname == NULL) || (src == NULL) || (dst == NULL))
285 *i = strcmp(src, dst) == 0 ? 1 : 0;
287 case ICONV_GET_TRANSLITERATE:
290 case ICONV_SET_TRANSLITERATE:
291 return ((*i == 1) ? 0 : -1);
292 case ICONV_GET_DISCARD_ILSEQ:
293 *i = cv->cv_shared->ci_discard_ilseq ? 1 : 0;
295 case ICONV_SET_DISCARD_ILSEQ:
296 cv->cv_shared->ci_discard_ilseq = *i;
298 case ICONV_SET_HOOKS:
299 cv->cv_shared->ci_hooks = hooks;
301 case ICONV_SET_FALLBACKS:
304 case ICONV_GET_ILSEQ_INVALID:
305 *i = cv->cv_shared->ci_ilseq_invalid ? 1 : 0;
307 case ICONV_SET_ILSEQ_INVALID:
308 cv->cv_shared->ci_ilseq_invalid = *i;
317 iconv_set_relocation_prefix(const char *orig_prefix __unused,
318 const char *curr_prefix __unused)