setrunelocale.c revision 101261
111695Sache/*- 211695Sache * Copyright (c) 1993 311695Sache * The Regents of the University of California. All rights reserved. 411695Sache * 511695Sache * This code is derived from software contributed to Berkeley by 611695Sache * Paul Borman at Krystal Technologies. 711695Sache * 811695Sache * Redistribution and use in source and binary forms, with or without 911695Sache * modification, are permitted provided that the following conditions 1011695Sache * are met: 1111695Sache * 1. Redistributions of source code must retain the above copyright 1211695Sache * notice, this list of conditions and the following disclaimer. 1311695Sache * 2. Redistributions in binary form must reproduce the above copyright 1411695Sache * notice, this list of conditions and the following disclaimer in the 1511695Sache * documentation and/or other materials provided with the distribution. 1611695Sache * 3. All advertising materials mentioning features or use of this software 1711695Sache * must display the following acknowledgement: 1811695Sache * This product includes software developed by the University of 1911695Sache * California, Berkeley and its contributors. 2011695Sache * 4. Neither the name of the University nor the names of its contributors 2111695Sache * may be used to endorse or promote products derived from this software 2211695Sache * without specific prior written permission. 2311695Sache * 2411695Sache * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2511695Sache * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2611695Sache * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2711695Sache * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2811695Sache * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2911695Sache * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 3011695Sache * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 3111695Sache * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3211695Sache * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3311695Sache * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3411695Sache * SUCH DAMAGE. 3511695Sache */ 3611695Sache 3792986Sobrien#include <sys/cdefs.h> 3892986Sobrien__FBSDID("$FreeBSD: head/lib/libc/locale/setrunelocale.c 101261 2002-08-03 09:10:31Z ache $"); 3992986Sobrien 4011695Sache#include <rune.h> 4111695Sache#include <errno.h> 4211695Sache#include <limits.h> 4311695Sache#include <string.h> 4411695Sache#include <stdio.h> 4511695Sache#include <stdlib.h> 4624694Sache#include <unistd.h> 4722330Sache#include "setlocale.h" 4811695Sache 4992905Sobrienextern int _none_init(_RuneLocale *); 5092905Sobrienextern int _UTF2_init(_RuneLocale *); 5192905Sobrienextern int _EUC_init(_RuneLocale *); 5292905Sobrienextern int _BIG5_init(_RuneLocale *); 5392905Sobrienextern int _MSKanji_init(_RuneLocale *); 5492905Sobrienextern _RuneLocale *_Read_RuneMagi(FILE *); 5511695Sache 5611695Sacheint 5711695Sachesetrunelocale(encoding) 5811695Sache char *encoding; 5911695Sache{ 6011695Sache FILE *fp; 6111695Sache char name[PATH_MAX]; 6211695Sache _RuneLocale *rl; 6311695Sache 6422330Sache if (!encoding || strlen(encoding) > ENCODING_LEN) 65101261Sache return (EINVAL); 6611695Sache 6711695Sache /* 6811695Sache * The "C" and "POSIX" locale are always here. 6911695Sache */ 7019964Sache if (!strcmp(encoding, "C") || !strcmp(encoding, "POSIX")) { 7111695Sache _CurrentRuneLocale = &_DefaultRuneLocale; 7211695Sache return(0); 7311695Sache } 7411695Sache 7524694Sache if (_PathLocale == NULL) { 7624694Sache char *p = getenv("PATH_LOCALE"); 7724694Sache 7832524Sjb if (p != NULL 7932524Sjb#ifndef __NETBSD_SYSCALLS 8032524Sjb && !issetugid() 8132524Sjb#endif 8232524Sjb ) { 8324694Sache if (strlen(p) + 1/*"/"*/ + ENCODING_LEN + 8424694Sache 1/*"/"*/ + CATEGORY_LEN >= PATH_MAX) 85101260Sache return (ENAMETOOLONG); 8624694Sache _PathLocale = strdup(p); 8724694Sache if (_PathLocale == NULL) 8824694Sache return (errno); 8924694Sache } else 9024694Sache _PathLocale = _PATH_LOCALE; 9124694Sache } 9222330Sache /* Range checking not needed, encoding length already checked above */ 9320810Sjoerg (void) strcpy(name, _PathLocale); 9420810Sjoerg (void) strcat(name, "/"); 9520810Sjoerg (void) strcat(name, encoding); 9620810Sjoerg (void) strcat(name, "/LC_CTYPE"); 9711695Sache 9811695Sache if ((fp = fopen(name, "r")) == NULL) 9911695Sache return(ENOENT); 10011695Sache 10111695Sache if ((rl = _Read_RuneMagi(fp)) == 0) { 10211695Sache fclose(fp); 10311695Sache return(EFTYPE); 10411695Sache } 10511695Sache fclose(fp); 10611695Sache 10729857Sache if (!rl->encoding[0]) 10811695Sache return(EINVAL); 10929857Sache else if (!strcmp(rl->encoding, "NONE")) 11011695Sache return(_none_init(rl)); 11161218Sache else if (!strcmp(rl->encoding, "UTF2")) 11261218Sache return(_UTF2_init(rl)); 11329857Sache else if (!strcmp(rl->encoding, "EUC")) 11411695Sache return(_EUC_init(rl)); 11538333Sphk else if (!strcmp(rl->encoding, "BIG5")) 11638333Sphk return(_BIG5_init(rl)); 11729857Sache else if (!strcmp(rl->encoding, "MSKanji")) 11829857Sache return(_MSKanji_init(rl)); 11929857Sache else 12011695Sache return(EINVAL); 12111695Sache} 12211695Sache 123