setrunelocale.c revision 101263
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 101263 2002-08-03 11:55:19Z 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 64101262Sache if (!encoding || strlen(encoding) > ENCODING_LEN || 65101262Sache (encoding[0] == '.' && 66101262Sache (encoding[1] == '\0' || 67101262Sache (encoding[1] == '.' && encoding[2] == '\0'))) || 68101262Sache strchr(encoding, '/') != NULL) 69101261Sache return (EINVAL); 7011695Sache 7111695Sache /* 7211695Sache * The "C" and "POSIX" locale are always here. 7311695Sache */ 7419964Sache if (!strcmp(encoding, "C") || !strcmp(encoding, "POSIX")) { 7511695Sache _CurrentRuneLocale = &_DefaultRuneLocale; 76101263Sache return (0); 7711695Sache } 7811695Sache 7924694Sache if (_PathLocale == NULL) { 8024694Sache char *p = getenv("PATH_LOCALE"); 8124694Sache 8232524Sjb if (p != NULL 8332524Sjb#ifndef __NETBSD_SYSCALLS 8432524Sjb && !issetugid() 8532524Sjb#endif 8632524Sjb ) { 8724694Sache if (strlen(p) + 1/*"/"*/ + ENCODING_LEN + 8824694Sache 1/*"/"*/ + CATEGORY_LEN >= PATH_MAX) 89101260Sache return (ENAMETOOLONG); 9024694Sache _PathLocale = strdup(p); 9124694Sache if (_PathLocale == NULL) 9224694Sache return (errno); 9324694Sache } else 9424694Sache _PathLocale = _PATH_LOCALE; 9524694Sache } 9622330Sache /* Range checking not needed, encoding length already checked above */ 9720810Sjoerg (void) strcpy(name, _PathLocale); 9820810Sjoerg (void) strcat(name, "/"); 9920810Sjoerg (void) strcat(name, encoding); 10020810Sjoerg (void) strcat(name, "/LC_CTYPE"); 10111695Sache 10211695Sache if ((fp = fopen(name, "r")) == NULL) 103101263Sache return (errno); 10411695Sache 10511695Sache if ((rl = _Read_RuneMagi(fp)) == 0) { 10611695Sache fclose(fp); 107101263Sache return (EFTYPE); 10811695Sache } 10911695Sache fclose(fp); 11011695Sache 11129857Sache if (!rl->encoding[0]) 112101263Sache return (EFTYPE); 11329857Sache else if (!strcmp(rl->encoding, "NONE")) 114101263Sache return (_none_init(rl)); 11561218Sache else if (!strcmp(rl->encoding, "UTF2")) 116101263Sache return (_UTF2_init(rl)); 11729857Sache else if (!strcmp(rl->encoding, "EUC")) 118101263Sache return (_EUC_init(rl)); 11938333Sphk else if (!strcmp(rl->encoding, "BIG5")) 120101263Sache return (_BIG5_init(rl)); 12129857Sache else if (!strcmp(rl->encoding, "MSKanji")) 122101263Sache return (_MSKanji_init(rl)); 12329857Sache else 124101263Sache return (EFTYPE); 12511695Sache} 12611695Sache 127