[kronosnet/kronosnet] 3629f3: Don't require root privileges unless necessary

Branch: refs/heads/no-root Home: https://github.com/kronosnet/kronosnet Commit: 3629f34f6ad1d56c641566d00a6cfcc96c853bf7 https://github.com/kronosnet/kronosnet/commit/3629f34f6ad1d56c641566d00a6cf… Author: Ferenc Wágner <wferi(a)debian.org> Date: 2017-11-25 (Sat, 25 Nov 2017) Changed paths: M libknet/tests/test-common.c M libknet/transport_common.c Log Message: ----------- Don't require root privileges unless necessary On Linux, if /proc/sys/net/core/[rw]mem_max are set to at least 8388608 (KNET_RING_RCVBUFF), setting the socket buffer sizes doesn't require root privileges. FreeBSD uses the kern.ipc.maxsockbuf sysctl MIB variable for capping user buffer requests. Linux doubles the requested amount for administrative overhead, but FreeBSD does not, so we can't be too strict when checking the results.