path-util: add path_startswith_strv()

src/basic/path-util.c

@@ -207,6 +207,18 @@ int path_make_relative(const char *from_dir, const char *to_path, char **_r) {
         return 0;
 }
 
+char* path_startswith_strv(const char *p, char **set) {
+        char **s, *t;
+
+        STRV_FOREACH(s, set) {
+                t = path_startswith(p, *s);
+                if (t)
+                        return t;
+        }
+
+        return NULL;
+}
+
 int path_strv_make_absolute_cwd(char **l) {
         char **s;
         int r;