1 files changed, 22 insertions, 34 deletions

diff --git a/src/lib/libcrypto/des/xcbc_enc.c b/src/lib/libcrypto/des/xcbc_enc.c
index 031589bf50..51e17e6b8a 100644
--- a/src/lib/libcrypto/des/xcbc_enc.c
+++ b/src/lib/libcrypto/des/xcbc_enc.c
@@ -79,18 +79,14 @@ static unsigned char desx_white_in2out[256]={
 0xA7,0x1C,0xC9,0x09,0x69,0x9A,0x83,0xCF,0x29,0x39,0xB9,0xE9,0x4C,0xFF,0x43,0xAB,
         };
 
-void des_xwhite_in2out(des_key,in_white,out_white)
-des_cblock (*des_key);
-des_cblock (*in_white);
-des_cblock (*out_white);
+void des_xwhite_in2out(const_des_cblock *des_key, const_des_cblock *in_white,
+             des_cblock *out_white)
         {
-        unsigned char *key,*in,*out;
         int out0,out1;
         int i;
-
-        key=(unsigned char *)des_key;
-        in=(unsigned char *)in_white;
-        out=(unsigned char *)out_white;
+        const unsigned char *key = &(*des_key)[0];
+        const unsigned char *in = &(*in_white)[0];
+        unsigned char *out = &(*out_white)[0];
 
         out[0]=out[1]=out[2]=out[3]=out[4]=out[5]=out[6]=out[7]=0;
         out0=out1=0;
@@ -111,34 +107,26 @@ des_cblock (*out_white);
                 }
         }
 
-void des_xcbc_encrypt(input, output, length, schedule, ivec, inw,outw,enc)
-des_cblock (*input);
-des_cblock (*output);
-long length;
-des_key_schedule schedule;
-des_cblock (*ivec);
-des_cblock (*inw);
-des_cblock (*outw);
-int enc;
+void des_xcbc_encrypt(const unsigned char *in, unsigned char *out,
+            long length, des_key_schedule schedule, des_cblock *ivec,
+            const_des_cblock *inw, const_des_cblock *outw, int enc)
         {
         register DES_LONG tin0,tin1;
         register DES_LONG tout0,tout1,xor0,xor1;
         register DES_LONG inW0,inW1,outW0,outW1;
-        register unsigned char *in,*out;
+        register const unsigned char *in2;
         register long l=length;
         DES_LONG tin[2];
         unsigned char *iv;
 
-        in=(unsigned char *)inw;
-        c2l(in,inW0);
-        c2l(in,inW1);
-        in=(unsigned char *)outw;
-        c2l(in,outW0);
-        c2l(in,outW1);
+        in2 = &(*inw)[0];
+        c2l(in2,inW0);
+        c2l(in2,inW1);
+        in2 = &(*outw)[0];
+        c2l(in2,outW0);
+        c2l(in2,outW1);
 
-        in=(unsigned char *)input;
-        out=(unsigned char *)output;
-        iv=(unsigned char *)ivec;
+        iv = &(*ivec)[0];
 
         if (enc)
                 {
@@ -150,7 +138,7 @@ int enc;
                         c2l(in,tin1);
                         tin0^=tout0^inW0; tin[0]=tin0;
                         tin1^=tout1^inW1; tin[1]=tin1;
-                        des_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT);
+                        des_encrypt(tin,schedule,DES_ENCRYPT);
                         tout0=tin[0]^outW0; l2c(tout0,out);
                         tout1=tin[1]^outW1; l2c(tout1,out);
                         }
@@ -159,11 +147,11 @@ int enc;
                         c2ln(in,tin0,tin1,l+8);
                         tin0^=tout0^inW0; tin[0]=tin0;
                         tin1^=tout1^inW1; tin[1]=tin1;
-                        des_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT);
+                        des_encrypt(tin,schedule,DES_ENCRYPT);
                         tout0=tin[0]^outW0; l2c(tout0,out);
                         tout1=tin[1]^outW1; l2c(tout1,out);
                         }
-                iv=(unsigned char *)ivec;
+                iv = &(*ivec)[0];
                 l2c(tout0,iv);
                 l2c(tout1,iv);
                 }
@@ -175,7 +163,7 @@ int enc;
                         {
                         c2l(in,tin0); tin[0]=tin0^outW0;
                         c2l(in,tin1); tin[1]=tin1^outW1;
-                        des_encrypt((DES_LONG *)tin,schedule,DES_DECRYPT);
+                        des_encrypt(tin,schedule,DES_DECRYPT);
                         tout0=tin[0]^xor0^inW0;
                         tout1=tin[1]^xor1^inW1;
                         l2c(tout0,out);
@@ -187,7 +175,7 @@ int enc;
                         {
                         c2l(in,tin0); tin[0]=tin0^outW0;
                         c2l(in,tin1); tin[1]=tin1^outW1;
-                        des_encrypt((DES_LONG *)tin,schedule,DES_DECRYPT);
+                        des_encrypt(tin,schedule,DES_DECRYPT);
                         tout0=tin[0]^xor0^inW0;
                         tout1=tin[1]^xor1^inW1;
                         l2cn(tout0,tout1,out,l+8);
@@ -195,7 +183,7 @@ int enc;
                         xor1=tin1;
                         }
 
-                iv=(unsigned char *)ivec;
+                iv = &(*ivec)[0];
                 l2c(xor0,iv);
                 l2c(xor1,iv);
                 }