More tests for negative seeks, prodded by matthew@

1 files changed, 23 insertions, 1 deletions

diff --git a/src/regress/lib/libc/open_memstream/open_memstreamtest.c b/src/regress/lib/libc/open_memstream/open_memstreamtest.c
index b9c0221b1a..a2327f21c5 100644
--- a/src/regress/lib/libc/open_memstream/open_memstreamtest.c
+++ b/src/regress/lib/libc/open_memstream/open_memstreamtest.c
@@ -1,4 +1,5 @@
-/*      $OpenBSD: open_memstreamtest.c,v 1.2 2013/03/25 03:33:28 guenther Exp $ */
+/*      $OpenBSD: open_memstreamtest.c,v 1.3 2013/03/28 09:35:58 mpi Exp $ */
+
 /*
  * Copyright (c) 2011 Martin Pieuchot <mpi@openbsd.org>
  *
@@ -137,6 +138,27 @@ main(void)
                 failures++;
         }
 
+        if (fseek(fp, 8, SEEK_SET) != 0) {
+                warnx("failed to fseek. (19)");
+                failures++;
+        }
+
+        if (ftell(fp) != 8) {
+                warnx("failed seek test. (20)");
+                failures++;
+        }
+
+        /* Try to seek backward */
+        if (fseek(fp, -1, SEEK_CUR) != 0) {
+                warnx("failed to fseek. (21)");
+                failures++;
+        }
+
+        if (ftell(fp) != 7) {
+                warnx("failed seeking backward. (22)");
+                failures++;
+        }
+
         free(buf);
 
         return (failures);