1 files changed, 79 insertions, 0 deletions
diff --git a/libio/tst-eof.c b/libio/tst-eof.c
new file mode 100644
index 0000000000..627eaf8ac5
--- /dev/null
+++ b/libio/tst-eof.c
@@ -0,0 +1,79 @@
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+#include <test-skeleton.c>
+
+
+static int
+do_test (void)
+{
+  char *buf;
+  int fd;
+  FILE *fp;
+  int ch;
+  char tm[20];
+
+  buf = (char *) malloc (strlen (test_dir) + sizeof "/tst-eof.XXXXXX");
+  if (buf == NULL)
+    {
+      printf ("cannot allocate memory: %m\n");
+      return 1;
+    }
+  stpcpy (stpcpy (buf, test_dir), "/tst-eof.XXXXXX");
+
+  fd = mkstemp (buf);
+  if (fd == -1)
+    {
+      printf ("cannot open temporary file: %m\n");
+      return 1;
+    }
+
+  /* Make sure it gets removed.  */
+  add_temp_file (buf);
+
+  if (write (fd, "some string\n", 12) != 12)
+    {
+      printf ("cannot write temporary file: %m\n");
+      return 1;
+    }
+
+  if (lseek (fd, 0, SEEK_SET) == (off_t) -1)
+    {
+      printf ("cannot reposition temporary file: %m\n");
+      return 1;
+    }
+
+  fp = fdopen (fd, "r");
+  if (fp == NULL)
+    {
+      printf ("cannot create stream: %m\n");
+      return 1;
+    }
+
+  if (feof (fp))
+    {
+      puts ("EOF set after fdopen");
+      return 1;
+    }
+
+  if (fread (buf, 1, 20, fp) != 12)
+    {
+      puts ("didn't read the correct number of bytes");
+      return 1;
+    }
+
+  if (! feof (fp))
+    {
+      puts ("EOF not set after fread");
+      return 1;
+    }
+
+  fclose (fp);
+
+  return 0;
+}