+
+char *unit_name_mangle_with_suffix(const char *name, const char *suffix) {
+ char *r, *t;
+ const char *f;
+
+ assert(name);
+ assert(suffix);
+ assert(suffix[0] == '.');
+
+ /* Similar to unit_name_mangle(), but is called when we know
+ * that this is about snapshot units. */
+
+ r = new(char, strlen(name) * 4 + strlen(suffix) + 1);
+ if (!r)
+ return NULL;
+
+ for (f = name, t = r; *f; f++) {
+ if (*f == '/')
+ *(t++) = '-';
+ else if (!strchr(VALID_CHARS, *f))
+ t = do_escape_char(*f, t);
+ else
+ *(t++) = *f;
+ }
+
+ if (!endswith(name, suffix))
+ strcpy(t, suffix);
+ else
+ *t = 0;
+
+ return r;
+}
+
+UnitType unit_name_to_type(const char *n) {
+ const char *e;
+
+ assert(n);
+
+ e = strrchr(n, '.');
+ if (!e)
+ return _UNIT_TYPE_INVALID;
+
+ return unit_type_from_string(e + 1);
+}
+
+int build_subslice(const char *slice, const char*name, char **subslice) {
+ char *ret;
+
+ assert(slice);
+ assert(name);
+ assert(subslice);
+
+ if (streq(slice, "-.slice"))
+ ret = strappend(name, ".slice");
+ else {
+ char *e;
+
+ e = endswith(slice, ".slice");
+ if (!e)
+ return -EINVAL;
+
+ ret = new(char, (e - slice) + 1 + strlen(name) + 6 + 1);
+ if (!ret)
+ return -ENOMEM;
+
+ stpcpy(stpcpy(stpcpy(mempcpy(ret, slice, e - slice), "-"), name), ".slice");
+ }
+
+ *subslice = ret;
+ return 0;
+}