Copy addr with actual addrlen in ipstring_to_sockaddr.

Signed-off-by: Rong Zeng <rongzeng@us.ibm.com>
Merge branch 'tp/ibm_next_20_port1' into ibm_next_2Xmerge_tmp
Merge branch 'tp/0927_fix' into ibm_next_2Xmerge_tmp