X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;ds=inline;f=src%2Fprng%2Frandom.c;h=633a17f6902fcf9e287c0ecbc921304513bf23a9;hb=1e7f0fcd7ff2096904fd93a2ee6d12a2392be392;hp=4ad62058db7ecbcd83e5cc5a395ba1fa2e45ff03;hpb=4750cf4202c29a895639b89099a7bdbe9ae422b6;p=musl

diff --git a/src/prng/random.c b/src/prng/random.c
index 4ad62058..633a17f6 100644
--- a/src/prng/random.c
+++ b/src/prng/random.c
@@ -1,22 +1,11 @@
-/*
- * random.c - Copyright © 2011 Szabolcs Nagy
- * Permission to use, copy, modify, and/or distribute this code
- * for any purpose with or without fee is hereby granted.
- * There is no warranty.
-*/
-
 #include <stdlib.h>
 #include <stdint.h>
-#include "libc.h"
+#include "lock.h"
 
 /*
 this code uses the same lagged fibonacci generator as the
 original bsd random implementation except for the seeding
-
-different seeds produce different sequences with long period
-(other libcs seed the state with a park-miller generator
-when seed=0 some fail to produce good random sequence
-others produce the same sequence as another seed)
+which was broken in the original
 */
 
 static uint32_t init[] = {
@@ -33,7 +22,7 @@ static int n = 31;
 static int i = 3;
 static int j = 0;
 static uint32_t *x = init+1;
-static int lock[2];
+static volatile int lock[1];
 
 static uint32_t lcg31(uint32_t x) {
 	return (1103515245*x + 12345) & 0x7fffffff;
@@ -98,6 +87,7 @@ char *initstate(unsigned seed, char *state, size_t size) {
 		n = 63;
 	x = (uint32_t*)state + 1;
 	__srandom(seed);
+	savestate();
 	UNLOCK(lock);
 	return old;
 }