+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2014 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <sys/mman.h>
-
-#include "set.h"
-#include "util.h"
-#include "utf8.h"
-#include "strv.h"
-
-#include "locale-util.h"
-
-static int add_locales_from_archive(Set *locales) {
- /* Stolen from glibc... */
-
- struct locarhead {
- uint32_t magic;
- /* Serial number. */
- uint32_t serial;
- /* Name hash table. */
- uint32_t namehash_offset;
- uint32_t namehash_used;
- uint32_t namehash_size;
- /* String table. */
- uint32_t string_offset;
- uint32_t string_used;
- uint32_t string_size;
- /* Table with locale records. */
- uint32_t locrectab_offset;
- uint32_t locrectab_used;
- uint32_t locrectab_size;
- /* MD5 sum hash table. */
- uint32_t sumhash_offset;
- uint32_t sumhash_used;
- uint32_t sumhash_size;
- };
-
- struct namehashent {
- /* Hash value of the name. */
- uint32_t hashval;
- /* Offset of the name in the string table. */
- uint32_t name_offset;
- /* Offset of the locale record. */
- uint32_t locrec_offset;
- };
-
- const struct locarhead *h;
- const struct namehashent *e;
- const void *p = MAP_FAILED;
- _cleanup_close_ int fd = -1;
- size_t sz = 0;
- struct stat st;
- unsigned i;
- int r;
-
- fd = open("/usr/lib/locale/locale-archive", O_RDONLY|O_NOCTTY|O_CLOEXEC);
- if (fd < 0)
- return errno == ENOENT ? 0 : -errno;
-
- if (fstat(fd, &st) < 0)
- return -errno;
-
- if (!S_ISREG(st.st_mode))
- return -EBADMSG;
-
- if (st.st_size < (off_t) sizeof(struct locarhead))
- return -EBADMSG;
-
- p = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
- if (p == MAP_FAILED)
- return -errno;
-
- h = (const struct locarhead *) p;
- if (h->magic != 0xde020109 ||
- h->namehash_offset + h->namehash_size > st.st_size ||
- h->string_offset + h->string_size > st.st_size ||
- h->locrectab_offset + h->locrectab_size > st.st_size ||
- h->sumhash_offset + h->sumhash_size > st.st_size) {
- r = -EBADMSG;
- goto finish;
- }
-
- e = (const struct namehashent*) ((const uint8_t*) p + h->namehash_offset);
- for (i = 0; i < h->namehash_size; i++) {
- char *z;
-
- if (e[i].locrec_offset == 0)
- continue;
-
- if (!utf8_is_valid((char*) p + e[i].name_offset))
- continue;
-
- z = strdup((char*) p + e[i].name_offset);
- if (!z) {
- r = -ENOMEM;
- goto finish;
- }
-
- r = set_consume(locales, z);
- if (r < 0)
- goto finish;
- }
-
- r = 0;
-
- finish:
- if (p != MAP_FAILED)
- munmap((void*) p, sz);
-
- return r;
-}
-
-static int add_locales_from_libdir (Set *locales) {
- _cleanup_closedir_ DIR *dir = NULL;
- struct dirent *entry;
- int r;
-
- dir = opendir("/usr/lib/locale");
- if (!dir)
- return errno == ENOENT ? 0 : -errno;
-
- FOREACH_DIRENT(entry, dir, return -errno) {
- char *z;
-
- if (entry->d_type != DT_DIR)
- continue;
-
- z = strdup(entry->d_name);
- if (!z)
- return -ENOMEM;
-
- r = set_consume(locales, z);
- if (r < 0 && r != -EEXIST)
- return r;
- }
-
- return 0;
-}
-
-int get_locales(char ***ret) {
- _cleanup_set_free_ Set *locales = NULL;
- _cleanup_strv_free_ char **l = NULL;
- int r;
-
- locales = set_new(&string_hash_ops);
- if (!locales)
- return -ENOMEM;
-
- r = add_locales_from_archive(locales);
- if (r < 0 && r != -ENOENT)
- return r;
-
- r = add_locales_from_libdir(locales);
- if (r < 0)
- return r;
-
- l = set_get_strv(locales);
- if (!l)
- return -ENOMEM;
-
- strv_sort(l);
-
- *ret = l;
- l = NULL;
-
- return 0;
-}
-
-bool locale_is_valid(const char *name) {
-
- if (isempty(name))
- return false;
-
- if (strlen(name) >= 128)
- return false;
-
- if (!utf8_is_valid(name))
- return false;
-
- if (!filename_is_valid(name))
- return false;
-
- if (!string_is_safe(name))
- return false;
-
- return true;
-}
-
-static const char * const locale_variable_table[_VARIABLE_LC_MAX] = {
- [VARIABLE_LANG] = "LANG",
- [VARIABLE_LANGUAGE] = "LANGUAGE",
- [VARIABLE_LC_CTYPE] = "LC_CTYPE",
- [VARIABLE_LC_NUMERIC] = "LC_NUMERIC",
- [VARIABLE_LC_TIME] = "LC_TIME",
- [VARIABLE_LC_COLLATE] = "LC_COLLATE",
- [VARIABLE_LC_MONETARY] = "LC_MONETARY",
- [VARIABLE_LC_MESSAGES] = "LC_MESSAGES",
- [VARIABLE_LC_PAPER] = "LC_PAPER",
- [VARIABLE_LC_NAME] = "LC_NAME",
- [VARIABLE_LC_ADDRESS] = "LC_ADDRESS",
- [VARIABLE_LC_TELEPHONE] = "LC_TELEPHONE",
- [VARIABLE_LC_MEASUREMENT] = "LC_MEASUREMENT",
- [VARIABLE_LC_IDENTIFICATION] = "LC_IDENTIFICATION"
-};
-
-DEFINE_STRING_TABLE_LOOKUP(locale_variable, LocaleVariable);
~ianmdlvl / elogind.git / blobdiff