Syslog differences between Resident and Event Scripts

[admin]

Sharing socket between scripts is not possible. You can simply create a new socket for each slog() call.

Add the following code to Common functions to make slog() function available for all scripts.

Code:

local function rfc5424_time()
  local now = os.time()
  local utc = os.time(os.date("!*t", now))
  local offset = os.difftime(now, utc)

  local sign = "+"
  if offset < 0 then sign = "-" end

  offset = math.abs(offset)

  local hours = math.floor(offset / 3600)
  local mins  = math.floor((offset % 3600) / 60)

  return os.date("%Y-%m-%dT%H:%M:%S") ..
        string.format("%s%02d:%02d", sign, hours, mins)
end

function slog(fields)
  local SYSLOG_HOST = "192.168.0.2"
  local SYSLOG_PORT = 1514

  local HOSTNAME = "logicmachine"
  local APPNAME  = "solar-master"

  local timestamp = rfc5424_time()
  local msg = "<14>1 "..timestamp.." "..HOSTNAME.." "..APPNAME.." - - - "..fields
  local sock = require('socket').udp()
  sock:sendto(msg, SYSLOG_HOST, SYSLOG_PORT)
  sock:close()
end