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-rw-r--r--test/time/bug-asctime_r.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/test/time/bug-asctime_r.c b/test/time/bug-asctime_r.c
new file mode 100644
index 000000000..86651ef1c
--- /dev/null
+++ b/test/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"