Security fixes.

CERT Advisory CA-95:03.telnet.encryption

Obtained from: CERT

1 files changed, 15 insertions, 3 deletions

diff --git a/secure/usr.bin/telnet/commands.c b/secure/usr.bin/telnet/commands.c
index a7224d1..dbbac49 100644
--- a/secure/usr.bin/telnet/commands.c
+++ b/secure/usr.bin/telnet/commands.c
@@ -1915,8 +1915,8 @@ struct authlist {
 };
 
 extern int
-	auth_enable P((int)),
-	auth_disable P((int)),
+	auth_enable P((char *)),
+	auth_disable P((char *)),
 	auth_status P((void));
 static int
 	auth_help P((void));
@@ -1955,6 +1955,12 @@ auth_cmd(argc, argv)
 {
     struct authlist *c;
 
+    if (argc < 2) {
+      fprintf(stderr,
+          "Need an argument to 'auth' command.  'auth ?' for help.\n");
+      return 0;
+    }
+
     c = (struct authlist *)
 		genget(argv[1], (char **) AuthList, sizeof(struct authlist));
     if (c == 0) {
@@ -2011,7 +2017,7 @@ struct encryptlist EncryptList[] = {
 						EncryptEnable, 1, 1, 2 },
     { "disable", "Disable encryption. ('encrypt enable ?' for more)",
 						EncryptDisable, 0, 1, 2 },
-    { "type", "Set encryptiong type. ('encrypt type ?' for more)",
+    { "type", "Set encryption type. ('encrypt type ?' for more)",
 						EncryptType, 0, 1, 1 },
     { "start", "Start encryption. ('encrypt start ?' for more)",
 						EncryptStart, 1, 0, 1 },
@@ -2055,6 +2061,12 @@ encrypt_cmd(argc, argv)
 {
     struct encryptlist *c;
 
+    if (argc < 2) {
+	fprintf(stderr,
+	    "Need an argument to 'encrypt' command.  'encrypt ?' for help.\n");
+	return 0;
+    }
+
     c = (struct encryptlist *)
 		genget(argv[1], (char **) EncryptList, sizeof(struct encryptlist));
     if (c == 0) {