r310586: Refactor transport sources a bit to facilitate changes coming down pipeline Add recv callback to transport layer to better facilitate code reuse and readability and for symmetry with send callback. Move recv_dgram and recv_stream to udp_recv and lsock_recv, respectively, and make the beforementioned functions recv callbacks for the udp and lsock transports, respectively. Consolidate the check_priv* functions in their relevant trans*.c source to limit scope/use. Note: this code is roughly based content from the submitter, although this was modified to be more of a direct move from snmpd/main.c to the trans_*.c sources, and to reduce unnecessary static function declarations. r310587: Fix definition for recv_dgram(..); it should be "ssize_t", not "int" I'm not sure why this wasn't flagged as an issue by the compiler, yet r310588: Fix return type for `ret` (recv callback) and sort variables by alignment Again, for reasons I don't yet understand, this is not being flagged by the compiler. Unlike the issue addressed in r310587, this problem existed prior to r310586 r311381: lsock_init_port: address issues with initializing sockaddr_un object - Use strlcpy to ensure p->name doesn't overflow sa.sun_path [*]. - Use SUN_LEN(..) instead of spelling out calculation longhand (inspired by comment by jmallett). Tested with: dgram and stream support with both bsnmpwalk and snmpwalk CID: 1006825