diff --git a/src/basic/string-util.c b/src/basic/string-util.c
index c1e7e6e622..6e8d10747b 100644
--- a/src/basic/string-util.c
+++ b/src/basic/string-util.c
@@ -1126,6 +1126,24 @@ int free_and_strndup(char **p, const char *s, size_t l) {
         return 1;
 }
 
+int strdup_to_full(char **ret, const char *src) {
+        if (!src) {
+                if (ret)
+                        *ret = NULL;
+
+                return 0;
+        } else {
+                if (ret) {
+                        char *t = strdup(src);
+                        if (!t)
+                                return -ENOMEM;
+                        *ret = t;
+                }
+
+                return 1;
+        }
+};
+
 bool string_is_safe(const char *p) {
         if (!p)
                 return false;
diff --git a/src/basic/string-util.h b/src/basic/string-util.h
index e162765aa7..c402cd3af0 100644
--- a/src/basic/string-util.h
+++ b/src/basic/string-util.h
@@ -224,6 +224,12 @@ static inline int free_and_strdup_warn(char **p, const char *s) {
 }
 int free_and_strndup(char **p, const char *s, size_t l);
 
+int strdup_to_full(char **ret, const char *src);
+static inline int strdup_to(char **ret, const char *src) {
+        int r = strdup_to_full(ASSERT_PTR(ret), src);
+        return r < 0 ? r : 0;  /* Suppress return value of 1. */
+}
+
 bool string_is_safe(const char *p) _pure_;
 
 DISABLE_WARNING_STRINGOP_TRUNCATION;
diff --git a/src/test/test-string-util.c b/src/test/test-string-util.c
index 92f1083a4c..3b003e885f 100644
--- a/src/test/test-string-util.c
+++ b/src/test/test-string-util.c
@@ -88,6 +88,35 @@ TEST(free_and_strndup) {
         }
 }
 
+TEST(strdup_to_full) {
+        _cleanup_free_ char *dst;
+
+        assert_se(strdup_to_full(NULL, NULL) == 0);
+        assert_se(strdup_to_full(&dst, NULL) == 0);
+
+        assert_se(strdup_to_full(NULL, "") == 1);
+        assert_se(strdup_to_full(&dst, "") == 1);
+        assert_se(streq_ptr(dst, ""));
+        dst = mfree(dst);
+
+        assert_se(strdup_to_full(NULL, "x") == 1);
+        assert_se(strdup_to_full(&dst, "x") == 1);
+        assert_se(streq_ptr(dst, "x"));
+}
+
+TEST(strdup_to) {
+        _cleanup_free_ char *dst;
+
+        assert_se(strdup_to(&dst, NULL) == 0);
+
+        assert_se(strdup_to(&dst, "") == 0);
+        assert_se(streq_ptr(dst, ""));
+        dst = mfree(dst);
+
+        assert_se(strdup_to(&dst, "x") == 0);
+        assert_se(streq_ptr(dst, "x"));
+}
+
 TEST(ascii_strcasecmp_n) {
         assert_se(ascii_strcasecmp_n("", "", 0) == 0);
         assert_se(ascii_strcasecmp_n("", "", 1) == 0);