Avoid shadowing, and a bit of constification while I'm at it.
[openssl.git] / crypto / cast / c_ofb64.c
index 4249870..fd0469a 100644 (file)
@@ -63,8 +63,9 @@
  * used.  The extra state information to record how much of the
  * 64bit block we have used is contained in *num;
  */
-void CAST_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
-            CAST_KEY *schedule, unsigned char *ivec, int *num)
+void CAST_ofb64_encrypt(const unsigned char *in, unsigned char *out,
+                       long length, CAST_KEY *schedule, unsigned char *ivec,
+                       int *num)
        {
        register CAST_LONG v0,v1,t;
        register int n= *num;
@@ -75,7 +76,7 @@ void CAST_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
        unsigned char *iv;
        int save=0;
 
-       iv=(unsigned char *)ivec;
+       iv=ivec;
        n2l(iv,v0);
        n2l(iv,v1);
        ti[0]=v0;
@@ -100,7 +101,7 @@ void CAST_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
                {
                v0=ti[0];
                v1=ti[1];
-               iv=(unsigned char *)ivec;
+               iv=ivec;
                l2n(v0,iv);
                l2n(v1,iv);
                }