Update.

	* sysdeps/unix/sysv/linux/internal_statvfs.c (__internal_statvfs):
	Avoid infinite loops in case the mounts file is hosed.
	* io/Makefile: Add rules to build and run tst-statvfs.
	* io/tst-statvfs.c: New file.

1 files changed, 30 insertions, 0 deletions

diff --git a/io/tst-statvfs.c b/io/tst-statvfs.c
new file mode 100644
index 0000000000..227c62d7da
--- /dev/null
+++ b/io/tst-statvfs.c
@@ -0,0 +1,30 @@
+#include <stdio.h>
+#include <sys/statvfs.h>
+
+
+/* This test cannot detect many errors.  But it will fail if the
+   statvfs is completely hosed and it'll detect a missing export.  So
+   it is better than nothing.  */
+static int
+do_test (int argc, char *argv[])
+{
+  for (int i = 1; i < argc; ++i)
+    {
+      struct statvfs st;
+      if (statvfs (argv[i], &st) != 0)
+        printf ("%s: failed (%m)\n", argv[i]);
+      else
+        printf ("%s: free: %llu, mandatory: %s\n", argv[i],
+                (unsigned long long int) st.f_bfree,
+#ifdef ST_MANDLOCK
+                (st.f_flag & ST_MANDLOCK) ? "yes" : "no"
+#else
+                "no"
+#endif
+                );
+    }
+  return 0;
+}
+
+#define TEST_FUNCTION do_test (argc, argv)
+#include "../test-skeleton.c"