-void ts_setgrfile __P((const char *));
-void ts_setgrent __P((void));
-void ts_endgrent __P((void));
-struct group *ts_getgrent __P((void));
-struct group *ts_getgrnam __P((const char *));
-struct group *ts_getgrgid __P((gid_t));
-
-void ts_setpwfile __P((const char *));
-void ts_setpwent __P((void));
-void ts_endpwent __P((void));
-struct passwd *ts_getpwent __P((void));
-struct passwd *ts_getpwnam __P((const char *));
-struct passwd *ts_getpwuid __P((uid_t));
-