1 files changed, 32 insertions, 0 deletions
diff --git a/time/bug-asctime_r.c b/time/bug-asctime_r.c
new file mode 100644
index 0000000000..86651ef1c5
--- /dev/null
+++ b/time/bug-asctime_r.c
@@ -0,0 +1,32 @@
+#include <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <time.h>
+
+
+static int
+do_test (void)
+{
+  int result = 0;
+  time_t t = time (NULL);
+  struct tm *tp = localtime (&t);
+  tp->tm_year = 10000 - 1900;
+  char buf[1000];
+  errno = 0;
+  buf[26] = '\xff';
+  char *s = asctime_r (tp, buf);
+  if (s != NULL || errno != EOVERFLOW)
+    {
+      puts ("asctime_r did not fail correctly");
+      result = 1;
+    }
+  if (buf[26] != '\xff')
+    {
+      puts ("asctime_r overwrote 27th byte in buffer");
+      result = 1;
+    }
+  return result;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"