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Read and write Solaris lastlog files
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 Dependencies

Runtime

>= 1.5.0
 Project Readme

solaris-lastlog¶ ↑

Author

Martin Carpenter

Email

mcarpenter@free.fr

Copyright

Copyright © Martin Carpenter 2013

About¶ ↑

The solaris-lastlog gem helps with the reading and writing of Solaris binary lastlog(4) files.

Examples¶ ↑

See the examples subdirectory.

Read and display all non-null entries in the lastlog¶ ↑

require 'solaris/lastlog'

io = File.open('/var/adm/lastlog', 'r')
reader = Solaris::Lastlog.new(:endian => :little)
uid = 0
while !io.eof? do
  record = reader.read(io)
  unless record.ll_time.zero?
    time = Time.at(record.ll_time)
    puts "%-5s %s %-16s %-8s" % [uid, time, record.ll_host, record.ll_line]
  end
  uid += 1
end

Filter the lastlog and set root's last login time to the current time¶ ↑

require 'solaris/lastlog'

io = File.open('/var/adm/lastlog', 'r')
reader = Solaris::Lastlog.new(:endian => :little)
first_record = true
while !io.eof? do
  record = reader.read(io)
  if first_record
    first_record = false
    record.ll_time = Time.now.to_i
  end
  print record.to_binary_s
end