(getutline_r): When we return ESRCH, mark UTMP_DATA->ubuf invalid (by setting UTMP_...

diff --git a/login/getutline_r.c b/login/getutline_r.c
index 0956164..965d46c 100644 (file)
--- a/login/getutline_r.c
+++ b/login/getutline_r.c
@@ -47,6 +47,7 @@ getutline_r (const struct utmp *line, struct utmp **utmp,
       if (read (utmp_data->ut_fd, &utmp_data->ubuf, sizeof (struct utmp))
          != sizeof (struct utmp))
        {
+         utmp_data->loc_utmp = 0; /* Mark UTMP_DATA->ubuf invalid.  */
          errno = ESRCH;
          return -1;
        }