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#!/usr/bin/lua
local nixio = require "nixio"
local posix
local defkey = nixio.meta_tls_context.tls_defaultkey
if not defkey or io.open(defkey) then
os.exit(0)
end
if os.execute("which openssl >/dev/null") == 0 then
io.stderr:write("Warning: OpenSSL detected "..
"but it looks like nixio was linked against axtls\n")
os.execute("umask 0077;openssl genrsa -out '" .. defkey .. "' 2048")
elseif os.execute("which dropbearkey >/dev/null && which dropbearconvert >/dev/null") == 0 then
os.execute("dropbearkey -t rsa -s 2048 -f /tmp/dbkey.rsa")
os.execute("umask 0077;dropbearconvert dropbear openssh /tmp/dbkey.rsa '"..defkey.."'")
os.remove("/tmp/dbkey.rsa")
else
io.stderr:write("No key generators available! Giving up.")
os.exit(1)
end
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