Clean up and modernize librandom.

 Correct random number generation has historically been
suprisingly painful to achieve. There was no standard,
every system behaved in a subtly different way, and there
were a few userland initiatives to get decent randomness,
all incompatible of course.
 The situation is a bit better now, we're heading towards
some standardization. The arc4random() series of functions
is a good API, and available on a lot of systems -
unfortunately not Linux, but on Linux the new getrandom()
makes using /dev/random obsolete.

 So I removed the old crap in librandom, dropped EGD support,
dropped dynamic backend selection, made a single API series
(random_* instead of goodrandom_* and badrandom_*), added
an arc4random backend and a getrandom backend, and defaulted
to /dev/urandom backed up by SURF in the worst case. This
should be much smaller and logical. However, it's a major
API break, so the skarnet.org stack will be changed to
adapt.

1 files changed, 0 insertions, 37 deletions

diff --git a/src/librandom/unirandomegd.c b/src/librandom/unirandomegd.c
deleted file mode 100644
index a340f06..0000000
--- a/src/librandom/unirandomegd.c
+++ /dev/null
@@ -1,37 +0,0 @@
-/* ISC license. */
-
-#include <errno.h>
-#include <skalibs/djbunix.h>
-#include <skalibs/randomegd.h>
-#include <skalibs/unirandom.h>
-#include <skalibs/unirandomegd.h>
-
-int unirandomegd_sinit (union unirandominfo *u, char const *path)
-{
-  register int s = randomegd_open(path) ;
-  if (s == -1) return 0 ;
-  if (coe(s) == -1)
-  {
-    register int e = errno ;
-    fd_close(s) ;
-    errno = e ;
-    return 0 ;
-  }
-  u->egd.fd = s ;
-  return 1 ;
-}
-
-int unirandomegd_finish (union unirandominfo *u)
-{
-  return !fd_close(u->egd.fd) ;
-}
-
-unsigned int unirandomegd_readb (union unirandominfo *u, char *s, unsigned int n)
-{
-  return randomegd_readb(u->egd.fd, s, n) ;
-}
-
-unsigned int unirandomegd_readnb (union unirandominfo *u, char *s, unsigned int n)
-{
-  return randomegd_readnb(u->egd.fd, s, n) ;
-}