X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Frc4%2Frc4_skey.c;h=9931a61008b09ba02a34dda4971db520798d0fba;hp=c80811c430cc2a63aa72beb1426b7490fa88e569;hb=b75ac3c2a3ae8549eb8afb701c1fc7a55c2afdb5;hpb=9cb0969f657bcc297430fefb9a51e78c52703121

diff --git a/crypto/rc4/rc4_skey.c b/crypto/rc4/rc4_skey.c
index c80811c430..9931a61008 100644
--- a/crypto/rc4/rc4_skey.c
+++ b/crypto/rc4/rc4_skey.c
@@ -1,25 +1,24 @@
-/* crypto/rc4/rc4_skey.c */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
  * This package is an SSL implementation written
  * by Eric Young (eay@cryptsoft.com).
  * The implementation was written so as to conform with Netscapes SSL.
- * 
+ *
  * This library is free for commercial and non-commercial use as long as
  * the following conditions are aheared to.  The following conditions
  * apply to all code found in this distribution, be it the RC4, RSA,
  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  * included with this distribution is covered by the same copyright terms
  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- * 
+ *
  * Copyright remains Eric Young's, and as such any Copyright notices in
  * the code are not to be removed.
  * If this package is used in a product, Eric Young should be given attribution
  * as the author of the parts of the library used.
  * This can be in the form of a textual message at program startup or
  * in documentation (online or textual) provided with the package.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ -34,10 +33,10 @@
  *     Eric Young (eay@cryptsoft.com)"
  *    The word 'cryptographic' can be left out if the rouines from the library
  *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from 
+ * 4. If you include any Windows specific code (or a derivative thereof) from
  *    the apps directory (application code) you must include an acknowledgement:
  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -49,34 +48,27 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- * 
+ *
  * The licence and distribution terms for any publically available version or
  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  * copied and put under another distribution licence
  * [including the GNU Public Licence.]
  */
 
-#include "rc4.h"
+#include <openssl/rc4.h>
 #include "rc4_locl.h"
+#include <openssl/opensslv.h>
 
-char *RC4_version="RC4 part of OpenSSL 0.9.2 31-Dec-1998";
-
-char *RC4_options()
-	{
-#ifdef RC4_INDEX
-	if (sizeof(RC4_INT) == 1)
-		return("rc4(idx,char)");
-	else
-		return("rc4(idx,int)");
-#else
-	if (sizeof(RC4_INT) == 1)
-		return("rc4(ptr,char)");
-	else
-		return("rc4(ptr,int)");
-#endif
-	}
+const char *RC4_options(void)
+{
+    if (sizeof(RC4_INT) == 1)
+        return ("rc4(char)");
+    else
+        return ("rc4(int)");
+}
 
-/* RC4 as implemented from a posting from
+/*-
+ * RC4 as implemented from a posting from
  * Newsgroups: sci.crypt
  * From: sterndark@netcom.com (David Sterndark)
  * Subject: RC4 Algorithm revealed.
@@ -84,36 +76,31 @@ char *RC4_options()
  * Date: Wed, 14 Sep 1994 06:35:31 GMT
  */
 
-void RC4_set_key(key, len, data)
-RC4_KEY *key;
-int len;
-register unsigned char *data;
-	{
-        register RC4_INT tmp;
-        register int id1,id2;
-        register RC4_INT *d;
-        unsigned int i;
-        
-        d= &(key->data[0]);
-	for (i=0; i<256; i++)
-		d[i]=i;
-        key->x = 0;     
-        key->y = 0;     
-        id1=id2=0;     
+void RC4_set_key(RC4_KEY *key, int len, const unsigned char *data)
+{
+    register RC4_INT tmp;
+    register int id1, id2;
+    register RC4_INT *d;
+    unsigned int i;
+
+    d = &(key->data[0]);
+    key->x = 0;
+    key->y = 0;
+    id1 = id2 = 0;
 
-#define SK_LOOP(n) { \
-		tmp=d[(n)]; \
-		id2 = (data[id1] + tmp + id2) & 0xff; \
-		if (++id1 == len) id1=0; \
-		d[(n)]=d[id2]; \
-		d[id2]=tmp; }
+#define SK_LOOP(d,n) { \
+                tmp=d[(n)]; \
+                id2 = (data[id1] + tmp + id2) & 0xff; \
+                if (++id1 == len) id1=0; \
+                d[(n)]=d[id2]; \
+                d[id2]=tmp; }
 
-	for (i=0; i < 256; i+=4)
-		{
-		SK_LOOP(i+0);
-		SK_LOOP(i+1);
-		SK_LOOP(i+2);
-		SK_LOOP(i+3);
-		}
-	}
-    
+    for (i = 0; i < 256; i++)
+        d[i] = i;
+    for (i = 0; i < 256; i += 4) {
+        SK_LOOP(d, i + 0);
+        SK_LOOP(d, i + 1);
+        SK_LOOP(d, i + 2);
+        SK_LOOP(d, i + 3);
+    }
+}