strv: move nulstr utilities to nulstr-util.[ch]

Let's move them out of the generic, already very long strv.[ch] module
into the more specific nulst-util.[ch]

No code changes.

1 files changed, 39 insertions, 0 deletions

diff --git a/src/test/test-nulstr-util.c b/src/test/test-nulstr-util.c
new file mode 100644
index 0000000000..e707416abf
--- /dev/null
+++ b/src/test/test-nulstr-util.c
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "alloc-util.h"
+#include "nulstr-util.h"
+#include "strv.h"
+#include "tests.h"
+
+TEST(strv_split_nulstr) {
+        _cleanup_strv_free_ char **l = NULL;
+        const char nulstr[] = "str0\0str1\0str2\0str3\0";
+
+        l = strv_split_nulstr(nulstr);
+        assert_se(l);
+
+        assert_se(streq(l[0], "str0"));
+        assert_se(streq(l[1], "str1"));
+        assert_se(streq(l[2], "str2"));
+        assert_se(streq(l[3], "str3"));
+}
+
+TEST(strv_parse_nulstr) {
+        _cleanup_strv_free_ char **l = NULL;
+        const char nulstr[] = "hoge\0hoge2\0hoge3\0\0hoge5\0\0xxx";
+
+        l = strv_parse_nulstr(nulstr, sizeof(nulstr)-1);
+        assert_se(l);
+        puts("Parse nulstr:");
+        strv_print(l);
+
+        assert_se(streq(l[0], "hoge"));
+        assert_se(streq(l[1], "hoge2"));
+        assert_se(streq(l[2], "hoge3"));
+        assert_se(streq(l[3], ""));
+        assert_se(streq(l[4], "hoge5"));
+        assert_se(streq(l[5], ""));
+        assert_se(streq(l[6], "xxx"));
+}
+
+DEFINE_TEST_MAIN(LOG_INFO);