c
static BOOL rdp_write_logon_info_v1(wStream* s, logon_info* info)
{
    // ... (existing code)

    WINPR_ASSERT(info);
    if (!info->domain)  // Check for NULL before using info->domain
        return FALSE; 

    len = strnlen(info->domain, charLen + 1);
    // ... (rest of the function)
}
