On Tue, May 24, 2016 at 02:24:59PM +0200, Ludovic Courtès wrote: > Leo Famulari <l...@famulari.name> skribis: > > > I realized that we don't seem to be saving any of the entropy in the > > kernel's random pool [0] across reboots. > > > > This means that for some period after boot, /dev/urandom may not be safe > > to use. From random(4): > > Good catch! > > Some comments: > > > +(define %urandom-seed-activation > > + ;; Activation gexp for the urandom seed > > + #~(begin > > + (use-modules (guix build utils)) > > + > > + (mkdir-p "/var/run") > > + (close-port (open-file "/var/run/urandom-seed" "a0b")) > > Or simply ‘open-output-file’.
I don't see a way to use (open-output-file) in "append" mode as with (open-file). Without that, the file is cleared before it is read in the following lines.
