/*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Paul Borman at Krystal Technologies. * * Copyright (c) 2011 The FreeBSD Foundation * * Portions of this software were developed by David Chisnall * under sponsorship from the FreeBSD Foundation. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #define __RUNETYPE_INTERNAL 1 #include #include #include #include #include #include #include #include #include "ldpart.h" #include "mblocal.h" #include "setlocale.h" #undef _CurrentRuneLocale extern _RuneLocale const *_CurrentRuneLocale; /* * A cached version of the runes for this thread. Used by ctype.h */ _Thread_local const _RuneLocale *_ThreadRuneLocale; extern int __mb_sb_limit; extern _RuneLocale *_Read_RuneMagi(const char *); static int __setrunelocale(struct xlocale_ctype *l, const char *); static void destruct_ctype(void *v) { struct xlocale_ctype *l = v; if (&_DefaultRuneLocale != l->runes) free(l->runes); free(l); } const _RuneLocale * __getCurrentRuneLocale(void) { return (XLOCALE_CTYPE(__get_locale())->runes); } static void free_runes(_RuneLocale *rl) { if ((rl != &_DefaultRuneLocale) && (rl)) { free(rl); } } static int __setrunelocale(struct xlocale_ctype *l, const char *encoding) { _RuneLocale *rl; int ret; char *path; struct xlocale_ctype saved = *l; /* * The "C" and "POSIX" locale are always here. */ if (strcmp(encoding, "C") == 0 || strcmp(encoding, "POSIX") == 0) { free_runes(saved.runes); (void) _none_init(l, (_RuneLocale*)&_DefaultRuneLocale); return (0); } /* Range checking not needed, encoding length already checked before */ if (asprintf(&path, "%s/%s/LC_CTYPE", _PathLocale, encoding) == -1) return (errno); if ((rl = _Read_RuneMagi(path)) == NULL) { free(path); errno = EINVAL; return (errno); } free(path); l->__mbrtowc = NULL; l->__mbsinit = NULL; l->__mbsnrtowcs = NULL; l->__wcrtomb = NULL; l->__wcsnrtombs = NULL; rl->__sputrune = NULL; rl->__sgetrune = NULL; if (strcmp(rl->__encoding, "NONE:US-ASCII") == 0) ret = _ascii_init(l, rl); else if (strncmp(rl->__encoding, "NONE", 4) == 0) ret = _none_init(l, rl); else if (strcmp(rl->__encoding, "UTF-8") == 0) ret = _UTF8_init(l, rl); else if (strcmp(rl->__encoding, "EUC-CN") == 0) ret = _EUC_CN_init(l, rl); else if (strcmp(rl->__encoding, "EUC-JP") == 0) ret = _EUC_JP_init(l, rl); else if (strcmp(rl->__encoding, "EUC-KR") == 0) ret = _EUC_KR_init(l, rl); else if (strcmp(rl->__encoding, "EUC-TW") == 0) ret = _EUC_TW_init(l, rl); else if (strcmp(rl->__encoding, "GB18030") == 0) ret = _GB18030_init(l, rl); else if (strcmp(rl->__encoding, "GB2312") == 0) ret = _GB2312_init(l, rl); else if (strcmp(rl->__encoding, "GBK") == 0) ret = _GBK_init(l, rl); else if (strcmp(rl->__encoding, "BIG5") == 0) ret = _BIG5_init(l, rl); else if (strcmp(rl->__encoding, "MSKanji") == 0) ret = _MSKanji_init(l, rl); else ret = EFTYPE; if (ret == 0) { /* Free the old runes if it exists. */ free_runes(saved.runes); /* Reset the mbstates */ memset(&l->c16rtomb, 0, sizeof(l->c16rtomb)); memset(&l->c32rtomb, 0, sizeof(l->c32rtomb)); memset(&l->mblen, 0, sizeof(l->mblen)); memset(&l->mbrlen, 0, sizeof(l->mbrlen)); memset(&l->mbrtoc16, 0, sizeof(l->mbrtoc16)); memset(&l->mbrtoc32, 0, sizeof(l->mbrtoc32)); memset(&l->mbrtowc, 0, sizeof(l->mbrtowc)); memset(&l->mbsnrtowcs, 0, sizeof(l->mbsnrtowcs)); memset(&l->mbsrtowcs, 0, sizeof(l->mbsrtowcs)); memset(&l->mbtowc, 0, sizeof(l->mbtowc)); memset(&l->wcrtomb, 0, sizeof(l->wcrtomb)); memset(&l->wcsnrtombs, 0, sizeof(l->wcsnrtombs)); memset(&l->wcsrtombs, 0, sizeof(l->wcsrtombs)); memset(&l->wctomb, 0, sizeof(l->wctomb)); } else { /* Restore the saved version if this failed. */ memcpy(l, &saved, sizeof(struct xlocale_ctype)); free(rl); } return (ret); } int __wrap_setrunelocale(const char *locale) { int ret = __setrunelocale(&__xlocale_global_ctype, locale); if (ret != 0) { errno = ret; return (_LDP_ERROR); } __mb_cur_max = __xlocale_global_ctype.__mb_cur_max; __mb_sb_limit = __xlocale_global_ctype.__mb_sb_limit; _CurrentRuneLocale = __xlocale_global_ctype.runes; return (_LDP_LOADED); } void __set_thread_rune_locale(locale_t loc) { if (loc == NULL) { _ThreadRuneLocale = &_DefaultRuneLocale; } else if (loc == LC_GLOBAL_LOCALE) { _ThreadRuneLocale = 0; } else { _ThreadRuneLocale = XLOCALE_CTYPE(loc)->runes; } } void * __ctype_load(const char *locale, locale_t unused __unused) { struct xlocale_ctype *l = calloc(sizeof(struct xlocale_ctype), 1); if (l == NULL) return (NULL); l->header.header.destructor = destruct_ctype; if (__setrunelocale(l, locale)) { free(l); return (NULL); } return (l); }