Build warning: cast increases required alignment

Hello!

On latest mater clang version 10.0.0-4ubuntu1 throws this warning:

hddtemp.c:467:43: warning: cast from 'char *' to 'struct in_addr *' increases required alignment from 1 to 4 [-Wcast-align]
    sockaddr_hddtemplocalhost.sin_addr = *(struct in_addr*) ptr_hostinfo->h_addr;
                                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.

Thanks!