1 /* 2 * Copyright 2013 Garrett D'Amore <garrett@damore.org> 3 * Copyright 2010 Nexenta Systems, Inc. All rights reserved. 4 * Copyright (c) 2000, 2001 Alexey Zelkin <phantom@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include "lint.h" 30 #include "file64.h" 31 #include <sys/types.h> 32 #include <sys/stat.h> 33 #include <errno.h> 34 #include <fcntl.h> 35 #include <limits.h> 36 #include <stdlib.h> 37 #include <string.h> 38 #include <unistd.h> 39 #include <stdio.h> 40 41 #include "libc.h" 42 #include "ldpart.h" 43 #include "setlocale.h" 44 45 static int split_lines(char *, const char *); 46 47 int 48 __part_load_locale(const char *name, 49 char **locale_buf, const char *category_filename, 50 int locale_buf_size_max, int locale_buf_size_min, 51 const char **dst_localebuf) 52 { 53 int saverr, fd, i, num_lines; 54 char *lbuf, *p; 55 const char *plim; 56 char filename[PATH_MAX]; 57 struct stat st; 58 size_t namesize, bufsize; 59 60 /* 61 * Slurp the locale file into the cache. 62 */ 63 namesize = strlen(name) + 1; 64 65 /* 'PathLocale' must be already set & checked. */ 66 67 (void) snprintf(filename, sizeof (filename), "%s/%s/%s/LCL_DATA", 68 _PathLocale, name, category_filename); 69 70 if ((fd = open(filename, O_RDONLY)) < 0) 71 return (_LDP_ERROR); 72 if (fstat(fd, &st) != 0) 73 goto bad_locale; 74 if (st.st_size <= 0) { 75 errno = EINVAL; 76 goto bad_locale; 77 } 78 bufsize = namesize + st.st_size; 79 if ((lbuf = libc_malloc(bufsize)) == NULL) { 80 errno = ENOMEM; 81 goto bad_locale; 82 } 83 (void) strcpy(lbuf, name); 84 p = lbuf + namesize; 85 plim = p + st.st_size; 86 if (read(fd, p, (size_t)st.st_size) != st.st_size) 87 goto bad_lbuf; 88 /* 89 * Parse the locale file into localebuf. 90 */ 91 if (plim[-1] != '\n') { 92 errno = EINVAL; 93 goto bad_lbuf; 94 } 95 num_lines = split_lines(p, plim); 96 if (num_lines >= locale_buf_size_max) 97 num_lines = locale_buf_size_max; 98 else if (num_lines >= locale_buf_size_min) 99 num_lines = locale_buf_size_min; 100 else { 101 errno = EINVAL; 102 goto bad_lbuf; 103 } 104 (void) close(fd); 105 /* 106 * Record the successful parse in the cache. 107 */ 108 *locale_buf = lbuf; 109 for (p = *locale_buf, i = 0; i < num_lines; i++) 110 dst_localebuf[i] = (p += strlen(p) + 1); 111 for (i = num_lines; i < locale_buf_size_max; i++) 112 dst_localebuf[i] = NULL; 113 114 return (_LDP_LOADED); 115 116 bad_lbuf: 117 saverr = errno; 118 free(lbuf); 119 errno = saverr; 120 bad_locale: 121 saverr = errno; 122 (void) close(fd); 123 errno = saverr; 124 125 return (_LDP_ERROR); 126 } 127 128 static int 129 split_lines(char *p, const char *plim) 130 { 131 int i; 132 133 i = 0; 134 while (p < plim) { 135 if (*p == '\n') { 136 *p = '\0'; 137 i++; 138 } 139 p++; 140 } 141 return (i); 142 } 143