131 lines
3.8 KiB
C
131 lines
3.8 KiB
C
/*-
|
|
* 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.
|
|
*
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. 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.
|
|
*/
|
|
|
|
#include <rune.h>
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include "setlocale.h"
|
|
|
|
extern int _none_init __P((_RuneLocale *));
|
|
#ifdef XPG4
|
|
extern int _UTF2_init __P((_RuneLocale *));
|
|
extern int _EUC_init __P((_RuneLocale *));
|
|
extern int _xpg4_setrunelocale __P((char *));
|
|
#endif
|
|
extern _RuneLocale *_Read_RuneMagi __P((FILE *));
|
|
|
|
#ifdef XPG4
|
|
int
|
|
setrunelocale(encoding)
|
|
char *encoding;
|
|
{
|
|
return _xpg4_setrunelocale(encoding);
|
|
}
|
|
#endif
|
|
|
|
int
|
|
#ifndef XPG4
|
|
setrunelocale(encoding)
|
|
#else
|
|
_xpg4_setrunelocale(encoding)
|
|
#endif
|
|
char *encoding;
|
|
{
|
|
FILE *fp;
|
|
char name[PATH_MAX];
|
|
_RuneLocale *rl;
|
|
|
|
if (!encoding || strlen(encoding) > ENCODING_LEN)
|
|
return(EFAULT);
|
|
|
|
/*
|
|
* The "C" and "POSIX" locale are always here.
|
|
*/
|
|
if (!strcmp(encoding, "C") || !strcmp(encoding, "POSIX")) {
|
|
_CurrentRuneLocale = &_DefaultRuneLocale;
|
|
return(0);
|
|
}
|
|
|
|
if (_PathLocale == NULL) {
|
|
char *p = getenv("PATH_LOCALE");
|
|
|
|
if (p != NULL && !issetugid()) {
|
|
if (strlen(p) + 1/*"/"*/ + ENCODING_LEN +
|
|
1/*"/"*/ + CATEGORY_LEN >= PATH_MAX)
|
|
return(EFAULT);
|
|
_PathLocale = strdup(p);
|
|
if (_PathLocale == NULL)
|
|
return (errno);
|
|
} else
|
|
_PathLocale = _PATH_LOCALE;
|
|
}
|
|
/* Range checking not needed, encoding length already checked above */
|
|
(void) strcpy(name, _PathLocale);
|
|
(void) strcat(name, "/");
|
|
(void) strcat(name, encoding);
|
|
(void) strcat(name, "/LC_CTYPE");
|
|
|
|
if ((fp = fopen(name, "r")) == NULL)
|
|
return(ENOENT);
|
|
|
|
if ((rl = _Read_RuneMagi(fp)) == 0) {
|
|
fclose(fp);
|
|
return(EFTYPE);
|
|
}
|
|
fclose(fp);
|
|
|
|
#ifdef XPG4
|
|
if (!rl->encoding[0] || !strcmp(rl->encoding, "UTF2")) {
|
|
return(_UTF2_init(rl));
|
|
#else
|
|
if (!rl->encoding[0]) {
|
|
return(EINVAL);
|
|
#endif
|
|
} else if (!strcmp(rl->encoding, "NONE")) {
|
|
return(_none_init(rl));
|
|
#ifdef XPG4
|
|
} else if (!strcmp(rl->encoding, "EUC")) {
|
|
return(_EUC_init(rl));
|
|
#endif
|
|
} else
|
|
return(EINVAL);
|
|
}
|
|
|