Add rng_tools package (#2766)

* Add rng_tools package

* Use 'install' command instead of 'cp'

packages/rng_tools.rb

+require 'package'
+
+class Rng_tools < Package
+  description 'This is a random number generator daemon.'
+  homepage 'https://github.com/nhorman/rng-tools'
+  version '6.5'
+  source_url 'https://github.com/nhorman/rng-tools/archive/v6.5.tar.gz'
+  source_sha256 '5fecd904f7d01262b3209ff78dd3b9594aac8daa41badd5a1e6438658e80c36e'
+
+  binary_url ({
+  })
+  binary_sha256 ({
+  })
+
+  depends_on 'curl'
+  depends_on 'libgcrypt'
+  depends_on 'sysfsutils'
+  depends_on 'psmisc'
+
+  def self.build
+    system './autogen.sh'
+    system "./configure", "--prefix=#{CREW_PREFIX}", "--libdir=#{CREW_LIB_PREFIX}"
+    system 'make'
+    system "echo '#!/bin/bash' > startrngd"
+    system "echo 'RNGD=#{CREW_PREFIX}/sbin/rngd' >> startrngd"
+    system "echo 'RNG=\$(pidof \$RNGD 2> /dev/null)' >> startrngd"
+    system "echo 'if [ -z \"\$RNG\" ]; then' >> startrngd"
+    system "echo '  sudo LD_LIBRARY_PATH=\$LD_LIBRARY_PATH rngd &>/dev/null' >> startrngd"
+    system "echo '  sleep 3' >> startrngd"
+    system "echo 'fi' >> startrngd"
+    system "echo 'RNG=\$(pidof \$RNGD 2> /dev/null)' >> startrngd"
+    system "echo 'if [ ! -z \"\$RNG\" ]; then' >> startrngd"
+    system "echo '  echo \"rngd process \$RNG is running\"' >> startrngd"
+    system "echo 'else' >> startrngd"
+    system "echo '  echo \"rngd failed to start\"' >> startrngd"
+    system "echo '  exit 1' >> startrngd"
+    system "echo 'fi' >> startrngd"
+    system "echo '#!/bin/bash' > stoprngd"
+    system "echo 'RNGD=#{CREW_PREFIX}/sbin/rngd' >> stoprngd"
+    system "echo 'RNG=\$(pidof \$RNGD 2> /dev/null)' >> stoprngd"
+    system "echo 'if [ ! -z \"\$RNG\" ]; then' >> stoprngd"
+    system "echo '  sudo killall rngd' >> stoprngd"
+    system "echo '  sleep 3' >> stoprngd"
+    system "echo 'fi' >> stoprngd"
+    system "echo 'RNG=\$(pidof \$RNGD 2> /dev/null)' >> stoprngd"
+    system "echo 'if [ -z \"\$RNG\" ]; then' >> stoprngd"
+    system "echo '  echo \"rngd process stopped\"' >> stoprngd"
+    system "echo 'else' >> stoprngd"
+    system "echo '  echo \"rngd process \$RNG is running\"' >> stoprngd"
+    system "echo '  exit 1' >> stoprngd"
+    system "echo 'fi' >> stoprngd"
+  end
+
+  def self.install
+    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install"
+    system "install", "-Dm755", "startrngd", "stoprngd", "#{CREW_DEST_PREFIX}/bin/"
+  end
+
+  def self.postinstall
+    puts
+    puts "To start the rngd daemon, execute the following:".lightblue
+    puts "startrngd".lightblue
+    puts
+    puts "To stop the rngd daemon, execute the following:".lightblue
+    puts "stoprngd".lightblue
+    puts
+    puts "To start the rngd daemon at login, execute the following:".lightblue
+    puts "echo '# start the rngd daemon' >> ~/.bashrc".lightblue
+    puts "echo 'if [ -f #{CREW_PREFIX}/bin/startrngd ]; then' >> ~/.bashrc".lightblue
+    puts "echo '  #{CREW_PREFIX}/bin/startrngd' >> ~/.bashrc".lightblue
+    puts "echo 'fi' >> ~/.bashrc".lightblue
+    puts "source ~/.bashrc".lightblue
+    puts
+  end
+end