From 286207b477d10535f185a205b36343c920db5fe5 Mon Sep 17 00:00:00 2001
From: tholo <tholo@openbsd.org>
Date: Wed, 17 Apr 1996 07:15:17 +0000
Subject: [PATCH] Make encrypted Kerberos logins work

---
 usr.bin/rlogin/des_rw.c | 57 +++++++++++++++++------------------------
 usr.bin/rlogin/rlogin.c |  2 +-
 2 files changed, 25 insertions(+), 34 deletions(-)

diff --git a/usr.bin/rlogin/des_rw.c b/usr.bin/rlogin/des_rw.c
index f8a326205b7..bf928f85551 100644
--- a/usr.bin/rlogin/des_rw.c
+++ b/usr.bin/rlogin/des_rw.c
@@ -52,17 +52,9 @@ static char rcsid[] = "$NetBSD: des_rw.c,v 1.2 1995/03/21 07:58:30 cgd Exp $";
 #include <time.h>
 #include <unistd.h>
 
-static des_cblock	des_inbuf[10240], storage[10240], *store_ptr;
-static des_cblock	*key;
-static des_key_schedule	key_schedule;
-
-/* XXX these should be in a kerberos include file */
-int	krb_net_read __P((int, char *, int));
-#ifdef notdef
-/* XXX too hard to make this work */
-int	des_pcbc_encrypt __P((des_cblock *, des_cblock *, long,
-	    des_key_schedule, des_cblock *, int));
-#endif
+static unsigned char	des_inbuf[10240], storage[10240], *store_ptr;
+static bit_64		*key;
+static u_char		*key_schedule;
 
 /*
  * NB: These routines will not function properly if NBIO
@@ -78,20 +70,20 @@ int	des_pcbc_encrypt __P((des_cblock *, des_cblock *, long,
  * The inkey parameter is actually the DES initial vector,
  * and the insched is the DES Key unwrapped for faster decryption
  */
+static int nstored = 0;
 
-int
-des_set_key(inkey, insched)
-	des_cblock		*inkey;
-	des_key_schedule	insched;
+void
+desrw_set_key(inkey, insched)
+	bit_64		*inkey;
+	u_char		*insched;
 {
 	key = inkey;
-	bcopy(insched, key_schedule, sizeof(key_schedule));
-
-	return 0;
+	key_schedule = insched;
+	nstored = 0;
 }
 
 void
-des_clear_key()
+desrw_clear_key()
 {
 	bzero((char *) key, sizeof(C_Block));
 	bzero((char *) key_schedule, sizeof(Key_schedule));
@@ -104,9 +96,8 @@ des_read(fd, buf, len)
 	register char *buf;
 	int len;
 {
-	int nreturned = 0;
 	long net_len, rd_len;
-	int nstored = 0;
+	int nreturned = 0;
 
 	if (nstored >= len) {
 		(void) bcopy(store_ptr, buf, len);
@@ -140,12 +131,12 @@ des_read(fd, buf, len)
 		/* pipe must have closed, return 0 */
 		return(0);
 	}
-	(void) des_pcbc_encrypt(des_inbuf,	/* inbuf */
-			    storage,		/* outbuf */
-			    net_len,		/* length */
-			    key_schedule,	/* DES key */
-			    key,		/* IV */
-			    DECRYPT);		/* direction */
+	(void) des_pcbc_encrypt((des_cblock *)des_inbuf,	/* inbuf */
+			    (des_cblock *)storage,		/* outbuf */
+			    rd_len,				/* length */
+			    key_schedule,			/* DES key */
+			    (des_cblock *)key,			/* IV */
+			    DECRYPT);				/* direction */
 
 	if(net_len < 8)
 		store_ptr = storage + 8 - net_len;
@@ -167,7 +158,7 @@ des_read(fd, buf, len)
 	return(nreturned);
 }
 
-static	des_cblock des_outbuf[10240];	/* > longest write */
+static unsigned char	des_outbuf[10240];	/* > longest write */
 
 int
 des_write(fd, buf, len)
@@ -176,7 +167,7 @@ des_write(fd, buf, len)
 	int len;
 {
 	static	int	seeded = 0;
-	static	des_cblock	garbage_buf[8];
+	static	char	garbage_buf[8];
 	long net_len, garbage;
 
 	if(len < 8) {
@@ -192,11 +183,11 @@ des_write(fd, buf, len)
 	}
 	/* pcbc_encrypt outputs in 8-byte (64 bit) increments */
 
-	(void) des_pcbc_encrypt((len < 8) ? garbage_buf : (des_cblock *)buf,
-			    des_outbuf,
+	(void) des_pcbc_encrypt((des_cblock *)((len < 8) ? garbage_buf : buf),
+			    (des_cblock *)des_outbuf,
 			    (len < 8) ? 8 : len,
-			    key_schedule,	/* DES key */
-			    key,		/* IV */
+			    key_schedule,		/* DES key */
+			    (des_cblock *)key,		/* IV */
 			    ENCRYPT);
 
 	/* tell the other end the real amount, but send an 8-byte padded
diff --git a/usr.bin/rlogin/rlogin.c b/usr.bin/rlogin/rlogin.c
index aa75a2d14ce..c1bb31ee08e 100644
--- a/usr.bin/rlogin/rlogin.c
+++ b/usr.bin/rlogin/rlogin.c
@@ -213,7 +213,7 @@ main(argc, argv)
 #ifdef KERBEROS
 		case 'x':
 			doencrypt = 1;
-			des_set_key(&cred.session, schedule);
+			desrw_set_key(&cred.session, schedule);
 			break;
 #endif
 		case '?':
-- 
2.20.1