From eb6c848027361474049fbd068df6025492845a2b Mon Sep 17 00:00:00 2001
From: Miles Bader <miles@gnu.org>
Date: Fri, 5 Jul 1996 23:48:41 +0000
Subject: [PATCH] (getutline_r): When we return ESRCH, mark UTMP_DATA->ubuf
 invalid (by setting   UTMP_DATA->loc_utmp to 0).

---
 login/getutline_r.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/login/getutline_r.c b/login/getutline_r.c
index 0956164eab..965d46ce8f 100644
--- 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;
 	}