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-- hostname model methods
local mymodule = {}
fs = require("acf.fs")
modelfunctions = require("modelfunctions")
mymodule.get = function (fqdn)
local n
if fqdn then
n = modelfunctions.run_executable({"hostname", "-f"})
end
if not n or n == "" then
n = modelfunctions.run_executable({"hostname"})
end
if not n or n == "" then
n = "unknown"
end
return cfe({value=n, label="Hostname"})
end
mymodule.read_name = function ()
return cfe({ type="group", value={hostname=mymodule.get(false)}, label="Hostname" })
end
mymodule.update_name = function(self, name)
local success = true
-- Hostname must be less than 64 characters, characters in set 0-9a-z-, and not start/end with -
if string.len(name.value.hostname.value) == 0 or string.len(name.value.hostname.value) > 63 then
name.value.hostname.errtxt = "Illegal length"
success = false
elseif string.find(name.value.hostname.value, "[^-0-9a-zA-Z]") then
name.value.hostname.errtxt = "Contains illegal character"
success = false
elseif string.find(name.value.hostname.value, "^-") or string.find(name.value.hostname.value, "-$") then
name.value.hostname.errtxt = "Illegal start/end character"
success = false
end
if success then
fs.write_file("/etc/hostname", name.value.hostname.value)
modelfunctions.run_executable({"hostname", "-F", "/etc/hostname"})
else
name.errtxt = "Failed to set hostname"
end
return name
end
return mymodule
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