190423eceSAlexey Zelkin /* 274f2b975SAlexey Zelkin * Copyright (c) 2000, 2001 Alexey Zelkin <phantom@FreeBSD.org> 390423eceSAlexey Zelkin * All rights reserved. 490423eceSAlexey Zelkin * 590423eceSAlexey Zelkin * Redistribution and use in source and binary forms, with or without 690423eceSAlexey Zelkin * modification, are permitted provided that the following conditions 790423eceSAlexey Zelkin * are met: 890423eceSAlexey Zelkin * 1. Redistributions of source code must retain the above copyright 990423eceSAlexey Zelkin * notice, this list of conditions and the following disclaimer. 1090423eceSAlexey Zelkin * 2. Redistributions in binary form must reproduce the above copyright 1190423eceSAlexey Zelkin * notice, this list of conditions and the following disclaimer in the 1290423eceSAlexey Zelkin * documentation and/or other materials provided with the distribution. 1390423eceSAlexey Zelkin * 1490423eceSAlexey Zelkin * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1590423eceSAlexey Zelkin * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1690423eceSAlexey Zelkin * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1790423eceSAlexey Zelkin * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1890423eceSAlexey Zelkin * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1990423eceSAlexey Zelkin * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2090423eceSAlexey Zelkin * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2190423eceSAlexey Zelkin * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2290423eceSAlexey Zelkin * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2390423eceSAlexey Zelkin * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2490423eceSAlexey Zelkin * SUCH DAMAGE. 2590423eceSAlexey Zelkin */ 2690423eceSAlexey Zelkin 27333fc21eSDavid E. O'Brien #include <sys/cdefs.h> 28333fc21eSDavid E. O'Brien __FBSDID("$FreeBSD$"); 29333fc21eSDavid E. O'Brien 307d2cc62bSAlexey Zelkin #include "namespace.h" 3190423eceSAlexey Zelkin #include <sys/types.h> 3290423eceSAlexey Zelkin #include <sys/stat.h> 3390423eceSAlexey Zelkin #include <sys/syslimits.h> 34f75bb0aaSAndrey A. Chernov #include <errno.h> 3590423eceSAlexey Zelkin #include <fcntl.h> 3690423eceSAlexey Zelkin #include <stdlib.h> 3790423eceSAlexey Zelkin #include <string.h> 38278d1a20SDaniel Eischen #include <unistd.h> 39278d1a20SDaniel Eischen #include "un-namespace.h" 4074f2b975SAlexey Zelkin 4190423eceSAlexey Zelkin #include "setlocale.h" 4290423eceSAlexey Zelkin #include "ldpart.h" 4390423eceSAlexey Zelkin 4490423eceSAlexey Zelkin static int split_lines(char *, const char *); 4590423eceSAlexey Zelkin 4690423eceSAlexey Zelkin int 4790423eceSAlexey Zelkin __part_load_locale(const char *name, 4890423eceSAlexey Zelkin int *using_locale, 4990423eceSAlexey Zelkin char *locale_buf, 50f43a321bSAlexey Zelkin const char *category_filename, 51fc38c1e5SAlexey Zelkin int locale_buf_size_max, 52fc38c1e5SAlexey Zelkin int locale_buf_size_min, 53f75bb0aaSAndrey A. Chernov const char **dst_localebuf) 54f75bb0aaSAndrey A. Chernov { 5576692b80SAndrey A. Chernov int saverr, fd, i, num_lines; 5676692b80SAndrey A. Chernov char *lbuf, *p; 5790423eceSAlexey Zelkin const char *plim; 5890423eceSAlexey Zelkin char filename[PATH_MAX]; 5990423eceSAlexey Zelkin struct stat st; 6076692b80SAndrey A. Chernov size_t namesize, bufsize; 6190423eceSAlexey Zelkin 62f75bb0aaSAndrey A. Chernov /* 'name' must be already checked. */ 6376692b80SAndrey A. Chernov if (strcmp(name, "C") == 0 || strcmp(name, "POSIX") == 0) { 6476692b80SAndrey A. Chernov *using_locale = 0; 6576692b80SAndrey A. Chernov return (_LDP_CACHE); 6676692b80SAndrey A. Chernov } 6790423eceSAlexey Zelkin 6890423eceSAlexey Zelkin /* 6974f2b975SAlexey Zelkin * If the locale name is the same as our cache, use the cache. 7090423eceSAlexey Zelkin */ 7176692b80SAndrey A. Chernov if (locale_buf != NULL && strcmp(name, locale_buf) == 0) { 7290423eceSAlexey Zelkin *using_locale = 1; 7376692b80SAndrey A. Chernov return (_LDP_CACHE); 7490423eceSAlexey Zelkin } 75f43a321bSAlexey Zelkin 7690423eceSAlexey Zelkin /* 7774f2b975SAlexey Zelkin * Slurp the locale file into the cache. 7890423eceSAlexey Zelkin */ 7990423eceSAlexey Zelkin namesize = strlen(name) + 1; 8090423eceSAlexey Zelkin 81f75bb0aaSAndrey A. Chernov /* 'PathLocale' must be already set & checked. */ 8290423eceSAlexey Zelkin /* Range checking not needed, 'name' size is limited */ 8390423eceSAlexey Zelkin strcpy(filename, _PathLocale); 8490423eceSAlexey Zelkin strcat(filename, "/"); 8590423eceSAlexey Zelkin strcat(filename, name); 8690423eceSAlexey Zelkin strcat(filename, "/"); 87f43a321bSAlexey Zelkin strcat(filename, category_filename); 8876692b80SAndrey A. Chernov if ((fd = _open(filename, O_RDONLY)) < 0) 8976692b80SAndrey A. Chernov return (_LDP_ERROR); 903b5b529fSDaniel Eischen if (_fstat(fd, &st) != 0) 9190423eceSAlexey Zelkin goto bad_locale; 92f75bb0aaSAndrey A. Chernov if (st.st_size <= 0) { 93f75bb0aaSAndrey A. Chernov errno = EFTYPE; 9490423eceSAlexey Zelkin goto bad_locale; 95f75bb0aaSAndrey A. Chernov } 9690423eceSAlexey Zelkin bufsize = namesize + st.st_size; 9776692b80SAndrey A. Chernov if ((lbuf = malloc(bufsize)) == NULL) { 9876692b80SAndrey A. Chernov errno = ENOMEM; 9990423eceSAlexey Zelkin goto bad_locale; 10076692b80SAndrey A. Chernov } 10190423eceSAlexey Zelkin (void)strcpy(lbuf, name); 10290423eceSAlexey Zelkin p = lbuf + namesize; 10390423eceSAlexey Zelkin plim = p + st.st_size; 10490423eceSAlexey Zelkin if (_read(fd, p, (size_t) st.st_size) != st.st_size) 10590423eceSAlexey Zelkin goto bad_lbuf; 10690423eceSAlexey Zelkin /* 10774f2b975SAlexey Zelkin * Parse the locale file into localebuf. 10890423eceSAlexey Zelkin */ 109f75bb0aaSAndrey A. Chernov if (plim[-1] != '\n') { 110f75bb0aaSAndrey A. Chernov errno = EFTYPE; 11190423eceSAlexey Zelkin goto bad_lbuf; 112f75bb0aaSAndrey A. Chernov } 11390423eceSAlexey Zelkin num_lines = split_lines(p, plim); 114fc38c1e5SAlexey Zelkin if (num_lines >= locale_buf_size_max) 115fc38c1e5SAlexey Zelkin num_lines = locale_buf_size_max; 116fc38c1e5SAlexey Zelkin else if (num_lines >= locale_buf_size_min) 117fc38c1e5SAlexey Zelkin num_lines = locale_buf_size_min; 118f75bb0aaSAndrey A. Chernov else { 119f75bb0aaSAndrey A. Chernov errno = EFTYPE; 12076692b80SAndrey A. Chernov goto bad_lbuf; 121f75bb0aaSAndrey A. Chernov } 12276692b80SAndrey A. Chernov (void)_close(fd); 12390423eceSAlexey Zelkin /* 124f43a321bSAlexey Zelkin * Record the successful parse in the cache. 12590423eceSAlexey Zelkin */ 12676692b80SAndrey A. Chernov if (locale_buf != NULL) 12776692b80SAndrey A. Chernov free(locale_buf); 12890423eceSAlexey Zelkin locale_buf = lbuf; 12976692b80SAndrey A. Chernov for (p = locale_buf, i = 0; i < num_lines; i++) 13076692b80SAndrey A. Chernov dst_localebuf[i] = (p += strlen(p) + 1); 13176692b80SAndrey A. Chernov for (i = num_lines; i < locale_buf_size_max; i++) 13276692b80SAndrey A. Chernov dst_localebuf[i] = NULL; 13390423eceSAlexey Zelkin *using_locale = 1; 134ecc4c620SAndrey A. Chernov 13576692b80SAndrey A. Chernov return (_LDP_LOADED); 13690423eceSAlexey Zelkin 13790423eceSAlexey Zelkin bad_lbuf: 138ecc4c620SAndrey A. Chernov saverr = errno; 139ecc4c620SAndrey A. Chernov free(lbuf); 140ecc4c620SAndrey A. Chernov errno = saverr; 14190423eceSAlexey Zelkin bad_locale: 142ecc4c620SAndrey A. Chernov saverr = errno; 143ecc4c620SAndrey A. Chernov (void)_close(fd); 144ecc4c620SAndrey A. Chernov errno = saverr; 145ecc4c620SAndrey A. Chernov 14676692b80SAndrey A. Chernov return (_LDP_ERROR); 14790423eceSAlexey Zelkin } 14890423eceSAlexey Zelkin 14990423eceSAlexey Zelkin static int 150ecc4c620SAndrey A. Chernov split_lines(char *p, const char *plim) 151ecc4c620SAndrey A. Chernov { 15290423eceSAlexey Zelkin int i; 15390423eceSAlexey Zelkin 15490423eceSAlexey Zelkin for (i = 0; p < plim; i++) { 15590423eceSAlexey Zelkin p = strchr(p, '\n'); 15690423eceSAlexey Zelkin *p++ = '\0'; 15790423eceSAlexey Zelkin } 158ecc4c620SAndrey A. Chernov return (i); 15990423eceSAlexey Zelkin } 16090423eceSAlexey Zelkin 161