1 files changed, 4 insertions, 2 deletions

diff --git a/cipher.c b/cipher.c
index 639c1abbd..4117cb772 100644
--- a/cipher.c
+++ b/cipher.c
@@ -12,7 +12,7 @@
  */
 
 #include "includes.h"
-RCSID("$Id: cipher.c,v 1.20 2000/04/16 02:31:50 damien Exp $");
+RCSID("$Id: cipher.c,v 1.21 2000/05/30 03:44:52 damien Exp $");
 
 #include "ssh.h"
 #include "cipher.h"
@@ -178,7 +178,7 @@ ciphers_valid(const char *names)
         char *p;
         int i;
 
-        if (strcmp(names, "") == 0)
+        if (names == NULL || strcmp(names, "") == 0)
                 return 0;
         ciphers = xstrdup(names);
         for ((p = strtok(ciphers, CIPHER_SEP)); p; (p = strtok(NULL, CIPHER_SEP))) {
@@ -201,6 +201,8 @@ int
 cipher_number(const char *name)
 {
         int i;
+        if (name == NULL)
+                return -1;
         for (i = 0; i < sizeof(cipher_names) / sizeof(cipher_names[0]); i++)
                 if (strcmp(cipher_names[i], name) == 0 &&
                     (cipher_mask() & (1 << i)))