Class: Straycall::Prompt

Inherits:
Object
  • Object
show all
Defined in:
lib/straycall/prompt.rb

Instance Method Summary collapse

Constructor Details

#initialize(io = nil) ⇒ Prompt

Returns a new instance of Prompt.



5
6
7
8
 
# File 'lib/straycall/prompt.rb', line 5

def initialize(io = nil)
  @io = io
  @mutex = Mutex.new
end

Instance Method Details

#allow?(syscall, target) ⇒ Boolean

Returns:

  • (Boolean) 


10
11
12
13
14
15
16
17
18
19
20
21
22
 
# File 'lib/straycall/prompt.rb', line 10

def allow?(syscall, target)
  io = nil
  @mutex.synchronize do
    io = @io || File.open("/dev/tty", "r+")
    io.print("straycall: allow #{syscall}(2) → #{target}? [y/N] ")
    io.flush
    %w[y yes].include?(io.gets.to_s.strip.downcase)
  end
rescue IOError, SystemCallError
  false
ensure
  io&.close if !@io && io && !io.closed?
end