regression: mbsrtowcs test

diff --git a/src/regression/mbsrtowcs-overflow.c b/src/regression/mbsrtowcs-overflow.c
new file mode 100644 (file)
index 0000000..6f2a9da
--- /dev/null
+++ b/src/regression/mbsrtowcs-overflow.c
@@ -0,0 +1,22 @@
+// commit 211264e46a2f1bc382a84435e904d1548de672b0 2013-09-27
+// mbsrtowcs should not write outside the ws array
+#include <wchar.h>
+#include "test.h"
+
+int main(void)
+{
+       wchar_t ws[] = L"XXXXX";
+       const char *src = "abcd";
+       const char *want = src + 4;
+       size_t r;
+
+       r = mbsrtowcs(ws, &src, 4, 0);
+       if (r != 4)
+               t_error("mbsrtowcs(ws, &abcd, 4, 0) returned %zu, wanted 4\n", r);
+       if (src != want)
+               t_error("mbsrtowcs(ws, &abcd, 4, 0) set abcd to %p wanted %p\n", src, want);
+       if (wcscmp(ws, L"abcdX") != 0)
+               t_error("ws is L\"%ls\", wanted L\"abcdX\"\n", ws);
+
+       return t_status;
+}