2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 2000, 2001 Alexey Zelkin <phantom@FreeBSD.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
29 #include "namespace.h"
30 #include <sys/types.h>
39 #include "un-namespace.h"
42 #include "setlocale.h"
44 static int split_lines(char *, const char *);
47 __part_load_locale(const char *name,
50 const char *category_filename,
51 int locale_buf_size_max,
52 int locale_buf_size_min,
53 const char **dst_localebuf)
55 int saverr, fd, i, num_lines;
58 char filename[PATH_MAX];
60 size_t namesize, bufsize;
62 /* 'name' must be already checked. */
63 if (strcmp(name, "C") == 0 || strcmp(name, "POSIX") == 0 ||
64 strncmp(name, "C.", 2) == 0) {
70 * If the locale name is the same as our cache, use the cache.
72 if (*locale_buf != NULL && strcmp(name, *locale_buf) == 0) {
78 * Slurp the locale file into the cache.
80 namesize = strlen(name) + 1;
82 /* 'PathLocale' must be already set & checked. */
84 /* Range checking not needed, 'name' size is limited */
85 strcpy(filename, _PathLocale);
86 strcat(filename, "/");
87 strcat(filename, name);
88 strcat(filename, "/");
89 strcat(filename, category_filename);
90 if ((fd = _open(filename, O_RDONLY | O_CLOEXEC)) < 0)
92 if (_fstat(fd, &st) != 0)
94 if (st.st_size <= 0) {
98 bufsize = namesize + st.st_size;
99 if ((lbuf = malloc(bufsize)) == NULL) {
103 (void)strcpy(lbuf, name);
105 plim = p + st.st_size;
106 if (_read(fd, p, (size_t) st.st_size) != st.st_size)
109 * Parse the locale file into localebuf.
111 if (plim[-1] != '\n') {
115 num_lines = split_lines(p, plim);
116 if (num_lines >= locale_buf_size_max)
117 num_lines = locale_buf_size_max;
118 else if (num_lines >= locale_buf_size_min)
119 num_lines = locale_buf_size_min;
126 * Record the successful parse in the cache.
128 if (*locale_buf != NULL)
131 for (p = *locale_buf, i = 0; i < num_lines; i++)
132 dst_localebuf[i] = (p += strlen(p) + 1);
133 for (i = num_lines; i < locale_buf_size_max; i++)
134 dst_localebuf[i] = NULL;
137 return (_LDP_LOADED);
152 split_lines(char *p, const char *plim)