1 files changed, 5 insertions, 11 deletions

diff --git a/src/lib/libcrypto/des/cbc_cksm.c b/src/lib/libcrypto/des/cbc_cksm.c
index edfdec8a0f..1e543cb2a1 100644
--- a/src/lib/libcrypto/des/cbc_cksm.c
+++ b/src/lib/libcrypto/des/cbc_cksm.c
@@ -58,21 +58,15 @@
 
 #include "des_locl.h"
 
-DES_LONG des_cbc_cksum(input, output, length, schedule, ivec)
-des_cblock (*input);
-des_cblock (*output);
-long length;
-des_key_schedule schedule;
-des_cblock (*ivec);
+DES_LONG des_cbc_cksum(const unsigned char *in, des_cblock *output,
+                long length,
+                des_key_schedule schedule, const_des_cblock *ivec)
         {
         register DES_LONG tout0,tout1,tin0,tin1;
         register long l=length;
         DES_LONG tin[2];
-        unsigned char *in,*out,*iv;
-
-        in=(unsigned char *)input;
-        out=(unsigned char *)output;
-        iv=(unsigned char *)ivec;
+        unsigned char *out = &(*output)[0];
+        const unsigned char *iv = &(*ivec)[0];
 
         c2l(iv,tout0);
         c2l(iv,tout1);