shared: make timezone and locale enumeration and validation generic

This way we can reuse it other code thatn just localectl/localed +
timedatectl/timedated.

1 files changed, 6 insertions, 178 deletions

diff --git a/src/locale/localectl.c b/src/locale/localectl.c
index 2632305dc..8acc21203 100644
--- a/src/locale/localectl.c
+++ b/src/locale/localectl.c
@@ -43,6 +43,7 @@
 #include "path-util.h"
 #include "utf8.h"
 #include "def.h"
+#include "locale-util.h"
 
 static bool arg_no_pager = false;
 static bool arg_ask_password = true;
@@ -177,192 +178,19 @@ static int set_locale(sd_bus *bus, char **args, unsigned n) {
         return 0;
 }
 
-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) {
-                if (errno != ENOENT)
-                        log_error("Failed to open locale archive: %m");
-                r = -errno;
-                goto finish;
-        }
-
-        if (fstat(fd, &st) < 0) {
-                log_error("fstat() failed: %m");
-                r = -errno;
-                goto finish;
-        }
-
-        if (!S_ISREG(st.st_mode)) {
-                log_error("Archive file is not regular");
-                r = -EBADMSG;
-                goto finish;
-        }
-
-        if (st.st_size < (off_t) sizeof(struct locarhead)) {
-                log_error("Archive has invalid size");
-                r = -EBADMSG;
-                goto finish;
-        }
-
-        p = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
-        if (p == MAP_FAILED) {
-                log_error("Failed to map archive: %m");
-                r = -errno;
-                goto finish;
-        }
-
-        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) {
-                log_error("Invalid archive file.");
-                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 = log_oom();
-                        goto finish;
-                }
-
-                r = set_consume(locales, z);
-                if (r < 0) {
-                        log_error("Failed to add locale: %s", strerror(-r));
-                        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;
-        struct dirent *entry;
-        int r;
-
-        dir = opendir("/usr/lib/locale");
-        if (!dir) {
-                log_error("Failed to open locale directory: %m");
-                return -errno;
-        }
-
-        errno = 0;
-        while ((entry = readdir(dir))) {
-                char *z;
-
-                if (entry->d_type != DT_DIR)
-                        continue;
-
-                if (ignore_file(entry->d_name))
-                        continue;
-
-                z = strdup(entry->d_name);
-                if (!z)
-                        return log_oom();
-
-                r = set_consume(locales, z);
-                if (r < 0 && r != -EEXIST) {
-                        log_error("Failed to add locale: %s", strerror(-r));
-                        return r;
-                }
-
-                errno = 0;
-        }
-
-        if (errno > 0) {
-                log_error("Failed to read locale directory: %m");
-                return -errno;
-        }
-
-        return 0;
-}
-
 static int list_locales(sd_bus *bus, char **args, unsigned n) {
-        _cleanup_set_free_ Set *locales;
         _cleanup_strv_free_ char **l = NULL;
         int r;
 
-        locales = set_new(string_hash_func, string_compare_func);
-        if (!locales)
-                return log_oom();
-
-        r = add_locales_from_archive(locales);
-        if (r < 0 && r != -ENOENT)
-                return r;
+        assert(args);
 
-        r = add_locales_from_libdir(locales);
-        if (r < 0)
+        r = get_locales(&l);
+        if (r < 0) {
+                log_error("Failed to read list of locales: %s", strerror(-r));
                 return r;
-
-        l = set_get_strv(locales);
-        if (!l)
-                return log_oom();
-
-        strv_sort(l);
+        }
 
         pager_open_if_enabled();
-
         strv_print(l);
 
         return 0;