catalog: fix language detection

Detection would fail if language was not specified in the filename
but a dot appeared somewhere higher in the path.

2 files changed, 11 insertions, 5 deletions

diff --git a/src/journal/catalog.c b/src/journal/catalog.c
index 2be81aa2f..e3a3354ab 100644
--- a/src/journal/catalog.c
+++ b/src/journal/catalog.c
@@ -150,10 +150,10 @@ int catalog_file_lang(const char* filename, char **lang) {
                 return 0;
 
         beg = end - 1;
-        while (beg > filename && *beg != '.')
+        while (beg > filename && *beg != '.' && *beg != '/' && end - beg < 32)
                 beg --;
 
-        if (beg <= filename || end <= beg + 1 || end - beg > 32)
+        if (*beg != '.' || end <= beg + 1)
                 return 0;
 
         _lang = strndup(beg + 1, end - beg - 1);
diff --git a/src/journal/test-catalog.c b/src/journal/test-catalog.c
index 863b9f4b5..ffe180265 100644
--- a/src/journal/test-catalog.c
+++ b/src/journal/test-catalog.c
@@ -121,7 +121,7 @@ static void test_catalog_update(void) {
 }
 
 static void test_catalog_file_lang(void) {
-        _cleanup_free_ char *lang = NULL, *lang2 = NULL, *lang3 = NULL;
+        _cleanup_free_ char *lang = NULL, *lang2 = NULL, *lang3 = NULL, *lang4 = NULL;
 
         assert_se(catalog_file_lang("systemd.de_DE.catalog", &lang) == 1);
         assert_se(streq(lang, "de_DE"));
@@ -140,6 +140,12 @@ static void test_catalog_file_lang(void) {
 
         assert_se(catalog_file_lang("systemd.0123456789012345678901234567890.catalog", &lang3) == 1);
         assert_se(streq(lang3, "0123456789012345678901234567890"));
+
+        assert_se(catalog_file_lang("/x/y/systemd.catalog", &lang4) == 0);
+        assert_se(lang4 == NULL);
+
+        assert_se(catalog_file_lang("/x/y/systemd.ru_RU.catalog", &lang4) == 1);
+        assert_se(streq(lang4, "ru_RU"));
 }
 
 int main(int argc, char *argv[]) {
@@ -150,6 +156,8 @@ int main(int argc, char *argv[]) {
 
         log_set_max_level(LOG_DEBUG);
 
+        test_catalog_file_lang();
+
         test_catalog_importing();
 
         test_catalog_update();
@@ -166,7 +174,5 @@ int main(int argc, char *argv[]) {
         if (database)
                 unlink(database);
 
-        test_catalog_file_lang();
-
         return 0;
 }