如何将_snprintf更新为_snprintf_s c ++

Question

有人可以在此示例中向我解释如何将_snprintf升级到_snprintf_s吗？

void ScreenTag(const char* src, DWORD crc32, char* leaf, size_t leafLen)
{
    const char* p = src;
    const char* n = p;
    while (n = strchr(p, '\\'))
    {
       p = n + 1;
    }  
    _snprintf(leaf, leafLen, "Info:%s:0x%.8x", p, crc32);
}