Add test fseek(,-1) works properly.

1 files changed, 8 insertions, 3 deletions

diff --git a/src/regress/lib/libc/open_memstream/open_memstreamtest.c b/src/regress/lib/libc/open_memstream/open_memstreamtest.c
index 0608bddeba..5366a82ae9 100644
--- a/src/regress/lib/libc/open_memstream/open_memstreamtest.c
+++ b/src/regress/lib/libc/open_memstream/open_memstreamtest.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: open_memstreamtest.c,v 1.4 2014/07/20 01:58:37 guenther Exp $ */
+/*      $OpenBSD: open_memstreamtest.c,v 1.5 2019/05/02 08:38:41 yasuoka Exp $ */
 
 /*
  * Copyright (c) 2011 Martin Pieuchot <mpi@openbsd.org>
@@ -164,13 +164,18 @@ main(void)
                 failures++;
         }
 
+        if (fseek(fp, -1, SEEK_END) != 0) {
+                warnx("failed to fseek. (24)");
+                failures++;
+        }
+
         if (fclose(fp) == EOF) {
-                warnx("fclose failed. (24)");
+                warnx("fclose failed. (25)");
                 failures++;
         }
 
         if (size != 12) {
-                warnx("failed, size %zu should be %u.  (25)",
+                warnx("failed, size %zu should be %u.  (26)",
                     size, 12);
                 failures++;
         }