fortify-headers

standalone fortify-source implementation
git clone git://git.2f30.org/fortify-headers
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test_wcsncat_n_gt_buf.c (345B)

      1 #include "common.h"
      2 
      3 #include <wchar.h>
      4 
      5 int main(int argc, char** argv) {
      6   wchar_t buffer[8] = {0};
      7   wcsncat(buffer, L"12345", 5);
      8   printf("%ls\n", buffer);
      9 
     10   /* n > buffer capacity and overflow: n=10, buffer has 5 wchars. */
     11   CHK_FAIL_START
     12   wcsncat(buffer, L"1234567890", 10);
     13   CHK_FAIL_END
     14 
     15   printf("%ls\n", buffer);
     16   return ret;
     17 }