Date: Wed, 21 Oct 2015 16:50:08 +0200 (CEST) From: elof2@sentor.se To: freebsd-net <freebsd-net@freebsd.org> Subject: sysctl and signed net.bpf.maxbufsize variable Message-ID: <alpine.BSF.2.00.1510211635320.49057@farmermaggot.shire.sentor.se>
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Isn't this a bug? # sysctl net.bpf.maxbufsize=3000000000 net.bpf.maxbufsize: 524288 -> -1294967296 No error message and exit status is 0. Shouldn't net.bpf.maxbufsize be unsigned? I would like sysctl to have a crude sanity control and return an error if you set a positive value but the result becomes negative. ...and also have some specific sanity control to test if you try to set a value waaaay out of bounds (like setting net.bpf.maxbufsize to a value greater than the maximum RAM). /Elof
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