win32: use RtlGenRandom for /dev/urandom

Use the (somewhat ancient) Microsoft RtlGenRandom() function to
provide random data for /dev/urandom.

Saves 176-240 bytes.

(GitHub issue #519)

3 files changed, 0 insertions, 15 deletions

diff --git a/shell/Kbuild.src b/shell/Kbuild.src
index a287fce4e..6bba4989f 100644
--- a/shell/Kbuild.src
+++ b/shell/Kbuild.src
@@ -9,4 +9,3 @@ lib-y:=
 INSERT
 
 lib-$(CONFIG_FEATURE_SH_MATH) += math.o
-lib-$(CONFIG_FEATURE_PRNG_SHELL) += random.o
diff --git a/shell/random.c b/shell/random.c
index ffe0cc937..56c7c5a3c 100644
--- a/shell/random.c
+++ b/shell/random.c
@@ -19,17 +19,6 @@
 # include "random.h"
 # define RAND_BASH_MASK 0x7fff
 
-# if ENABLE_FEATURE_PRNG_SHELL
-uint32_t FAST_FUNC
-next_random(random_t *rnd)
-{
-        return full_random(rnd) & RAND_BASH_MASK;
-}
-#  undef RAND_BASH_MASK
-#  define RAND_BASH_MASK 0xffffffff
-#  define next_random full_random
-# endif
-
 #else
 # include <stdint.h>
 # include <unistd.h>
diff --git a/shell/random.h b/shell/random.h
index 75fe0f69f..c4eb44c13 100644
--- a/shell/random.h
+++ b/shell/random.h
@@ -35,9 +35,6 @@ typedef struct random_t {
         ((rnd)->galois_LFSR = 0)
 
 uint32_t next_random(random_t *rnd) FAST_FUNC;
-#if ENABLE_FEATURE_PRNG_SHELL
-uint32_t full_random(random_t *rnd) FAST_FUNC;
-#endif
 
 POP_SAVED_FUNCTION_VISIBILITY