X-Git-Url: https://git.subgeniuskitty.com/unix-history/.git/blobdiff_plain/fdb8e4aac282b72d4670aa3a26d9bba07afc7e6f..1c15e88899094343f75aeba04122cd96a96b428e:/usr/src/usr.bin/rsh/rsh.c

diff --git a/usr/src/usr.bin/rsh/rsh.c b/usr/src/usr.bin/rsh/rsh.c
index 033393d8f8..4a19b7c809 100644
--- a/usr/src/usr.bin/rsh/rsh.c
+++ b/usr/src/usr.bin/rsh/rsh.c
@@ -2,7 +2,19 @@
  * Copyright (c) 1983, 1990 The Regents of the University of California.
  * All rights reserved.
  *
- * %sccs.include.redist.c%
+ * Redistribution and use in source and binary forms are permitted
+ * provided that: (1) source distributions retain this entire copyright
+ * notice and comment, and (2) distributions including binaries display
+ * the following acknowledgement:  ``This product includes software
+ * developed by the University of California, Berkeley and its contributors''
+ * in the documentation or other materials provided with the distribution
+ * and in all advertising materials mentioning features or use of this
+ * software. Neither the name of the University nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 
 #ifndef lint
@@ -12,7 +24,7 @@ char copyright[] =
 #endif /* not lint */
 
 #ifndef lint
-static char sccsid[] = "@(#)rsh.c	5.23.1.1 (Berkeley) %G%";
+static char sccsid[] = "@(#)rsh.c	5.21 (Berkeley) 5/15/90";
 #endif /* not lint */
 
 /*
@@ -88,7 +100,7 @@ main(argc, argv)
 	}
 
 #ifdef KERBEROS
-#define	OPTIONS	"8KLdek:l:nw"
+#define	OPTIONS	"8KLdek:l:nwx"
 #else
 #define	OPTIONS	"8KLdel:nw"
 #endif
@@ -120,6 +132,10 @@ main(argc, argv)
 			nflag = 1;
 			break;
 #ifdef KERBEROS
+		case 'x':
+			encrypt = 1;
+			des_set_key(cred.session, schedule);
+			break;
 #endif
 		case '?':
 		default:
@@ -151,6 +167,9 @@ main(argc, argv)
 		user = pw->pw_name;
 
 #ifdef KERBEROS
+	/* -x turns off -n */
+	if (encrypt)
+		nflag = 0;
 #endif
 
 	args = copyargs(argv);
@@ -181,6 +200,10 @@ try_connect:
 		if (dest_realm == NULL)
 			dest_realm = krb_realmofhost(host);
 
+		if (encrypt)
+			rem = krcmd_mutual(&host, sp->s_port, user, args,
+			    &rfd2, dest_realm, &cred, schedule);
+		else
 			rem = krcmd(&host, sp->s_port, user, args, &rfd2,
 			    dest_realm);
 		if (rem < 0) {
@@ -246,6 +269,7 @@ try_connect:
 	}
 
 #ifdef KERBEROS
+	if (!encrypt)
 #endif
 	{
 		(void)ioctl(rfd2, FIONBIO, &one);
@@ -289,6 +313,9 @@ rewrite:	rembits = 1 << rem;
 		if ((rembits & (1 << rem)) == 0)
 			goto rewrite;
 #ifdef KERBEROS
+		if (encrypt)
+			wc = des_write(rem, bp, cc);
+		else
 #endif
 			wc = write(rem, bp, cc);
 		if (wc < 0) {
@@ -321,6 +348,9 @@ done:
 		if (ready & (1 << rfd2)) {
 			errno = 0;
 #ifdef KERBEROS
+			if (encrypt)
+				cc = des_read(rfd2, buf, sizeof buf);
+			else
 #endif
 				cc = read(rfd2, buf, sizeof buf);
 			if (cc <= 0) {
@@ -332,6 +362,9 @@ done:
 		if (ready & (1 << rem)) {
 			errno = 0;
 #ifdef KERBEROS
+			if (encrypt)
+				cc = des_read(rem, buf, sizeof buf);
+			else
 #endif
 				cc = read(rem, buf, sizeof buf);
 			if (cc <= 0) {
@@ -348,6 +381,9 @@ sendsig(signo)
 	char signo;
 {
 #ifdef KERBEROS
+	if (encrypt)
+		(void)des_write(rfd2, &signo, 1);
+	else
 #endif
 		(void)write(rfd2, &signo, 1);
 }
@@ -396,11 +432,11 @@ copyargs(argv)
 usage()
 {
 	(void)fprintf(stderr,
-	    "usage: rsh [-nd%s]%s[-l login] host [command]\n",
+	    "usage: rsh [-ndx]%s[-l login] host [command]\n",
 #ifdef KERBEROS
-	    "", " [-k realm] ");
+	    " [-k realm] ");
 #else
-	    "", " ");
+	    " ");
 #endif
 	exit(1);
 }