extern bool check_id(const char *id);
extern bool check_netname(const char *netname, bool strict);
-char *replace_name(const char *name);
+char *replace_name(const char *name) ATTR_MALLOC;
char *absolute_path(const char *path) ATTR_MALLOC;
-extern FILE *fopenmask(const char *filename, const char *mode, mode_t perms);
+extern FILE *fopenmask(const char *filename, const char *mode, mode_t perms) ATTR_DEALLOCATOR(fclose);
+
+// NULL-safe wrapper around strcmp().
+extern bool string_eq(const char *first, const char *second);
#endif