removing (outdated) drawterm

drawterm is much better maintained by russ cox,
so removing this outdated copy.

for a more recent version, go to:

http://swtch.com/drawterm/

1 files changed, 0 insertions, 62 deletions

diff --git a/sys/src/cmd/unix/drawterm/libsec/genrandom.c b/sys/src/cmd/unix/drawterm/libsec/genrandom.c
deleted file mode 100644
index 2cbaeb8c4..000000000
--- a/sys/src/cmd/unix/drawterm/libsec/genrandom.c
+++ /dev/null
@@ -1,62 +0,0 @@
-#include "os.h"
-#include <mp.h>
-#include <libsec.h>
-
-typedef struct State{
-	QLock		lock;
-	int		seeded;
-	uvlong		seed;
-	DES3state	des3;
-} State;
-static State x917state;
-
-static void
-X917(uchar *rand, int nrand)
-{
-	int i, m, n8;
-	uvlong I, x;
-
-	/* 1. Compute intermediate value I = Ek(time). */
-	I = nsec();
-	triple_block_cipher(x917state.des3.expanded, (uchar*)&I, 0); /* two-key EDE */
-
-	/* 2. x[i] = Ek(I^seed);  seed = Ek(x[i]^I); */
-	m = (nrand+7)/8;
-	for(i=0; i<m; i++){
-		x = I ^ x917state.seed;
-		triple_block_cipher(x917state.des3.expanded, (uchar*)&x, 0);
-		n8 = (nrand>8) ? 8 : nrand;
-		memcpy(rand, (uchar*)&x, n8);
-		rand += 8;
-		nrand -= 8;
-		x ^= I;
-		triple_block_cipher(x917state.des3.expanded, (uchar*)&x, 0);
-		x917state.seed = x;
-	}
-}
-
-static void
-X917init(void)
-{
-	int n;
-	uchar mix[128];
-	uchar key3[3][8];
-	ulong *ulp;
-
-	ulp = (ulong*)key3;
-	for(n = 0; n < sizeof(key3)/sizeof(ulong); n++)
-		ulp[n] = truerand();
-	setupDES3state(&x917state.des3, key3, nil);
-	X917(mix, sizeof mix);
-	x917state.seeded = 1;
-}
-
-void
-genrandom(uchar *p, int n)
-{
-	qlock(&x917state.lock);
-	if(x917state.seeded == 0)
-		X917init();
-	X917(p, n);
-	qunlock(&x917state.lock);
-}