Check sk_SSL_CIPHER_num() after assigning sk.

diff --git a/ssl/ssl_lib.c b/ssl/ssl_lib.c
index adb32351caeaf7998408fa3fd750bbd0365ab06c..47a0c7c4eaa858abe091bef7aa5ff3b1eb1944eb 100644 (file)
--- a/ssl/ssl_lib.c
+++ b/ssl/ssl_lib.c
@@ -1256,11 +1256,12 @@ char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
                (len < 2))
                return(NULL);
 
+       p=buf;
+       sk=s->session->ciphers;
+
        if (sk_SSL_CIPHER_num(sk) == 0)
                return NULL;
 
-       p=buf;
-       sk=s->session->ciphers;
        for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
                {
                int n;