1 /*- 2 * Copyright (c) 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Paul Borman at Krystal Technologies. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #if defined(LIBC_SCCS) && !defined(lint) 38 static char sccsid[] = "@(#)rune.c 8.1 (Berkeley) 6/4/93"; 39 #endif /* LIBC_SCCS and not lint */ 40 41 #include <ctype.h> 42 #include <errno.h> 43 #include <limits.h> 44 #include <rune.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include "common_rune.h" 48 49 char *_PathLocale; 50 51 extern int _none_init __P((_RuneLocale *)); 52 extern int _UTF2_init __P((_RuneLocale *)); 53 extern int _EUC_init __P((_RuneLocale *)); 54 55 int 56 setrunelocale(encoding) 57 char *encoding; 58 { 59 FILE *fp; 60 char name[PATH_MAX]; 61 _RuneLocale *rl; 62 63 if (!encoding) 64 return(EFAULT); 65 66 /* 67 * The "C" and "POSIX" locale are always here. 68 */ 69 if (!strcmp(encoding, "C") || !strcmp(encoding, "POSIX")) { 70 _CurrentRuneLocale = &_DefaultRuneLocale; 71 return(0); 72 } 73 74 if (!PathLocale && !(PathLocale = getenv("PATH_LOCALE"))) 75 PathLocale = _PATH_LOCALE; 76 77 (void) strcpy(name, PathLocale); 78 (void) strcat(name, "/"); 79 (void) strcat(name, encoding); 80 (void) strcat(name, "/LC_CTYPE"); 81 82 if ((fp = fopen(name, "r")) == NULL) 83 return(ENOENT); 84 85 if ((rl = _Read_RuneMagi(fp)) == 0) { 86 fclose(fp); 87 return(EFTYPE); 88 } 89 90 if (!rl->encoding[0] || !strcmp(rl->encoding, "UTF2")) { 91 return(_UTF2_init(rl)); 92 } else if (!strcmp(rl->encoding, "NONE")) { 93 return(_none_init(rl)); 94 } else if (!strcmp(rl->encoding, "EUC")) { 95 return(_EUC_init(rl)); 96 } else 97 return(EINVAL); 98 } 99 100 void 101 setinvalidrune(ir) 102 rune_t ir; 103 { 104 _INVALID_RUNE = ir; 105 } 106 107