c8f931a80e
strdup() it to prevent unsetenv() or setenv() effects. Check its length to not allow user to overflow internal locale buffer. Move PATH_LOCALE handling code into one place. POSIX: make better stub for LC_MONETARY & LC_NUMERIC, now it check locale directory existance instead of refusing all non-C non-POSIX locales. POSIX treats empty locale env variable as unset variable while our old code treats it as "C" locale, fix it. Implement previous locale restoring, if locale setting fails. Old code assumes success if some of LC_ALL subset is successed even other fails, POSIX treats it as failure with previous locale restoring, fix it. Remove unneccessary length checking in currentlocale()
119 lines
3.4 KiB
C
119 lines
3.4 KiB
C
/*-
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* Copyright (c) 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Paul Borman at Krystal Technologies.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <rune.h>
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#include <errno.h>
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#include <limits.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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char *_PathLocale;
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extern int _none_init __P((_RuneLocale *));
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#ifdef XPG4
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extern int _UTF2_init __P((_RuneLocale *));
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extern int _EUC_init __P((_RuneLocale *));
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extern int _xpg4_setrunelocale __P((char *));
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#endif
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extern _RuneLocale *_Read_RuneMagi __P((FILE *));
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#ifdef XPG4
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int
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setrunelocale(encoding)
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char *encoding;
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{
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return _xpg4_setrunelocale(encoding);
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}
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#endif
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int
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#ifndef XPG4
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setrunelocale(encoding)
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#else
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_xpg4_setrunelocale(encoding)
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#endif
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char *encoding;
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{
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FILE *fp;
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char name[PATH_MAX];
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_RuneLocale *rl;
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if (!encoding)
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return(EFAULT);
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/*
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* The "C" and "POSIX" locale are always here.
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*/
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if (!strcmp(encoding, "C") || !strcmp(encoding, "POSIX")) {
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_CurrentRuneLocale = &_DefaultRuneLocale;
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return(0);
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}
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if (!_PathLocale)
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return(EFAULT);
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(void) strcpy(name, _PathLocale);
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(void) strcat(name, "/");
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(void) strcat(name, encoding);
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(void) strcat(name, "/LC_CTYPE");
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if ((fp = fopen(name, "r")) == NULL)
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return(ENOENT);
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if ((rl = _Read_RuneMagi(fp)) == 0) {
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fclose(fp);
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return(EFTYPE);
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}
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fclose(fp);
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#ifdef XPG4
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if (!rl->encoding[0] || !strcmp(rl->encoding, "UTF2")) {
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return(_UTF2_init(rl));
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#else
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if (!rl->encoding[0]) {
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return(EINVAL);
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#endif
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} else if (!strcmp(rl->encoding, "NONE")) {
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return(_none_init(rl));
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#ifdef XPG4
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} else if (!strcmp(rl->encoding, "EUC")) {
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return(_EUC_init(rl));
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#endif
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} else
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return(EINVAL);
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}
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