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-rw-r--r--src/shared/locale-util.c205
-rw-r--r--src/shared/locale-util.h25
-rw-r--r--src/shared/time-util.c103
-rw-r--r--src/shared/time-util.h3
4 files changed, 336 insertions, 0 deletions
diff --git a/src/shared/locale-util.c b/src/shared/locale-util.c
new file mode 100644
index 0000000000..8d2c363036
--- /dev/null
+++ b/src/shared/locale-util.c
@@ -0,0 +1,205 @@
+/*-*- 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_func, string_compare_func);
+ 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_safe(name))
+ return false;
+
+ if (!string_is_safe(name))
+ return false;
+
+ return true;
+}
diff --git a/src/shared/locale-util.h b/src/shared/locale-util.h
new file mode 100644
index 0000000000..7be9af2b4e
--- /dev/null
+++ b/src/shared/locale-util.h
@@ -0,0 +1,25 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+ 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/>.
+***/
+
+int get_locales(char ***l);
+bool locale_is_valid(const char *name);
diff --git a/src/shared/time-util.c b/src/shared/time-util.c
index 8e5de77757..fc79c569f4 100644
--- a/src/shared/time-util.c
+++ b/src/shared/time-util.c
@@ -25,6 +25,7 @@
#include "util.h"
#include "time-util.h"
+#include "strv.h"
usec_t now(clockid_t clock_id) {
struct timespec ts;
@@ -826,3 +827,105 @@ bool ntp_synced(void) {
return true;
}
+
+int get_timezones(char ***ret) {
+ _cleanup_fclose_ FILE *f = NULL;
+ _cleanup_strv_free_ char **zones = NULL;
+ size_t n_zones = 0, n_allocated = 0;
+
+ assert(ret);
+
+ zones = strv_new("UTC", NULL);
+ if (!zones)
+ return -ENOMEM;
+
+ n_allocated = 2;
+ n_zones = 1;
+
+ f = fopen("/usr/share/zoneinfo/zone.tab", "re");
+ if (f) {
+ char l[LINE_MAX];
+
+ FOREACH_LINE(l, f, return -errno) {
+ char *p, *w;
+ size_t k;
+
+ p = strstrip(l);
+
+ if (isempty(p) || *p == '#')
+ continue;
+
+ /* Skip over country code */
+ p += strcspn(p, WHITESPACE);
+ p += strspn(p, WHITESPACE);
+
+ /* Skip over coordinates */
+ p += strcspn(p, WHITESPACE);
+ p += strspn(p, WHITESPACE);
+
+ /* Found timezone name */
+ k = strcspn(p, WHITESPACE);
+ if (k <= 0)
+ continue;
+
+ w = strndup(p, k);
+ if (!w)
+ return -ENOMEM;
+
+ if (!GREEDY_REALLOC(zones, n_allocated, n_zones + 2)) {
+ free(w);
+ return -ENOMEM;
+ }
+
+ zones[n_zones++] = w;
+ zones[n_zones] = NULL;
+ }
+
+ strv_sort(zones);
+
+ } else if (errno != ENOENT)
+ return -errno;
+
+ *ret = zones;
+ zones = NULL;
+
+ return 0;
+}
+
+bool timezone_is_valid(const char *name) {
+ bool slash = false;
+ const char *p, *t;
+ struct stat st;
+
+ if (!name || *name == 0 || *name == '/')
+ return false;
+
+ for (p = name; *p; p++) {
+ if (!(*p >= '0' && *p <= '9') &&
+ !(*p >= 'a' && *p <= 'z') &&
+ !(*p >= 'A' && *p <= 'Z') &&
+ !(*p == '-' || *p == '_' || *p == '+' || *p == '/'))
+ return false;
+
+ if (*p == '/') {
+
+ if (slash)
+ return false;
+
+ slash = true;
+ } else
+ slash = false;
+ }
+
+ if (slash)
+ return false;
+
+ t = strappenda("/usr/share/zoneinfo/", name);
+ if (stat(t, &st) < 0)
+ return false;
+
+ if (!S_ISREG(st.st_mode))
+ return false;
+
+ return true;
+}
diff --git a/src/shared/time-util.h b/src/shared/time-util.h
index 34ba6c11be..792cd27489 100644
--- a/src/shared/time-util.h
+++ b/src/shared/time-util.h
@@ -95,3 +95,6 @@ int parse_sec(const char *t, usec_t *usec);
int parse_nsec(const char *t, nsec_t *nsec);
bool ntp_synced(void);
+
+int get_timezones(char ***l);
+bool timezone_is_valid(const char *name);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-14 06:54:52 +0000