[BZ #1459]

	* time/asctime.c (__asctime_r): Check for tm_year computation to
	overflow and fail in this case.
	* time/Makefile (tests): Add bug-asctime.
	* time/bug-asctime.c: New file.

1 files changed, 32 insertions, 0 deletions

diff --git a/time/bug-asctime.c b/time/bug-asctime.c
new file mode 100644
index 0000000..7204e1b
--- /dev/null
+++ b/time/bug-asctime.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 = INT_MAX;
+  errno = 0;
+  char *s = asctime (tp);
+  if (s != NULL || errno != EOVERFLOW)
+    {
+      puts ("asctime did not fail correctly");
+      result = 1;
+    }
+  char buf[1000];
+  s = asctime_r (tp, buf);
+  if (s != NULL || errno != EOVERFLOW)
+    {
+      puts ("asctime_r did not fail correctly");
+      result = 1;
+    }
+  return result;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"