plunky 7c710de82e use CMSG_LEN and SOCKCREDSIZE macros to validate length because when
there are zero extra groups, the size of the cmsg is smaller than
sizeof(struct sockcred). This fixes a problem with registering
services during rc.d

while here, validate the pdu header length before using the contents
2007-02-22 20:49:32 +00:00
..