1 files changed, 0 insertions, 172 deletions
diff --git a/lib/libc/gen/arc4random.c b/lib/libc/gen/arc4random.c
deleted file mode 100644
index b9f8a48..0000000
--- a/lib/libc/gen/arc4random.c
+++ /dev/null
@@ -1,172 +0,0 @@
-/* $Id: arc4random.c,v 1.1 1996/12/28 06:33:01 dm Exp $ */
-
-/*
- * Arc4 random number generator for OpenBSD.
- * Copyright 1996 David Mazieres <dm@lcs.mit.edu>.
- *
- * Modification and redistribution in source and binary forms is
- * permitted provided that due credit is given to the author and the
- * OpenBSD project (for instance by leaving this copyright notice
- * intact).
- */
-
-/*
- * This code is derived from section 17.1 of Applied Cryptography,
- * second edition, which describes a stream cipher allegedly
- * compatible with RSA Labs "RC4" cipher (the actual description of
- * which is a trade secret).  The same algorithm is used as a stream
- * cipher called "arcfour" in Tatu Ylonen's ssh package.
- *
- * Here the stream cipher has been modified always to include the time
- * when initializing the state.  That makes it impossible to
- * regenerate the same random sequence twice, so this can't be used
- * for encryption, but will generate good random numbers.
- *
- * RC4 is a registered trademark of RSA Laboratories.
- */
-
-#include <stdlib.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/time.h>
-
-struct arc4_stream {
-	u_int8_t i;
-	u_int8_t j;
-	u_int8_t s[256];
-};
-
-static int rs_initialized;
-static struct arc4_stream rs;
-
-static inline void
-arc4_init(as)
-	struct arc4_stream *as;
-{
-	int     n;
-
-	for (n = 0; n < 256; n++)
-		as->s[n] = n;
-	as->i = 0;
-	as->j = 0;
-}
-
-static inline void
-arc4_addrandom(as, dat, datlen)
-	struct arc4_stream *as;
-	u_char *dat;
-	int     datlen;
-{
-	int     n;
-	u_int8_t si;
-
-	as->i--;
-	for (n = 0; n < 256; n++) {
-		as->i = (as->i + 1);
-		si = as->s[as->i];
-		as->j = (as->j + si + dat[n % datlen]);
-		as->s[as->i] = as->s[as->j];
-		as->s[as->j] = si;
-	}
-}
-
-static void
-arc4_stir(as)
-	struct arc4_stream *as;
-{
-	int     fd;
-	struct {
-		struct timeval tv;
-		pid_t pid;
-		u_int8_t rnd[128 - sizeof(struct timeval) - sizeof(pid_t)];
-	}       rdat;
-
-	gettimeofday(&rdat.tv, NULL);
-	rdat.pid = getpid();
-	fd = open("/dev/urandom", O_RDONLY, 0);
-	if (fd >= 0) {
-		(void) read(fd, rdat.rnd, sizeof(rdat.rnd));
-		close(fd);
-	}
-	/* fd < 0?  Ah, what the heck. We'll just take whatever was on the
-	 * stack... */
-
-	arc4_addrandom(as, (void *) &rdat, sizeof(rdat));
-}
-
-static inline u_int8_t
-arc4_getbyte(as)
-	struct arc4_stream *as;
-{
-	u_int8_t si, sj;
-
-	as->i = (as->i + 1);
-	si = as->s[as->i];
-	as->j = (as->j + si);
-	sj = as->s[as->j];
-	as->s[as->i] = sj;
-	as->s[as->j] = si;
-	return (as->s[(si + sj) & 0xff]);
-}
-
-static inline u_int32_t
-arc4_getword(as)
-	struct arc4_stream *as;
-{
-	u_int32_t val;
-	val = arc4_getbyte(as) << 24;
-	val |= arc4_getbyte(as) << 16;
-	val |= arc4_getbyte(as) << 8;
-	val |= arc4_getbyte(as);
-	return val;
-}
-
-void
-arc4random_stir()
-{
-	if (!rs_initialized) {
-		arc4_init(&rs);
-		rs_initialized = 1;
-	}
-	arc4_stir(&rs);
-}
-
-void
-arc4random_addrandom(dat, datlen)
-	u_char *dat;
-	int     datlen;
-{
-	if (!rs_initialized)
-		arc4random_stir();
-	arc4_addrandom(&rs, dat, datlen);
-}
-
-u_int32_t
-arc4random()
-{
-	if (!rs_initialized)
-		arc4random_stir();
-	return arc4_getword(&rs);
-}
-
-#if 0
-/*-------- Test code for i386 --------*/
-#include <stdio.h>
-#include <machine/pctr.h>
-int
-main(int argc, char **argv)
-{
-	const int iter = 1000000;
-	int     i;
-	pctrval v;
-
-	v = rdtsc();
-	for (i = 0; i < iter; i++)
-		arc4random();
-	v = rdtsc() - v;
-	v /= iter;
-
-	printf("%qd cycles\n", v);
-}
-#endif