1 files changed, 14 insertions, 12 deletions

diff --git a/src/lib/libcrypto/rc2/rc2.h b/src/lib/libcrypto/rc2/rc2.h
index 9571efb755..076c0a067c 100644
--- a/src/lib/libcrypto/rc2/rc2.h
+++ b/src/lib/libcrypto/rc2/rc2.h
@@ -59,10 +59,6 @@
 #ifndef HEADER_RC2_H
 #define HEADER_RC2_H
 
-#ifdef  __cplusplus
-extern "C" {
-#endif
-
 #ifdef NO_RC2
 #error RC2 is disabled.
 #endif
@@ -74,23 +70,29 @@ extern "C" {
 #define RC2_BLOCK       8
 #define RC2_KEY_LENGTH  16
 
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
 typedef struct rc2_key_st
         {
         RC2_INT data[64];
         } RC2_KEY;
 
  
-void RC2_set_key(RC2_KEY *key, int len, unsigned char *data,int bits);
-void RC2_ecb_encrypt(unsigned char *in,unsigned char *out,RC2_KEY *key,
-        int enc);
+void RC2_set_key(RC2_KEY *key, int len, const unsigned char *data,int bits);
+void RC2_ecb_encrypt(const unsigned char *in,unsigned char *out,RC2_KEY *key,
+                     int enc);
 void RC2_encrypt(unsigned long *data,RC2_KEY *key);
 void RC2_decrypt(unsigned long *data,RC2_KEY *key);
-void RC2_cbc_encrypt(unsigned char *in, unsigned char *out, long length,
+void RC2_cbc_encrypt(const unsigned char *in, unsigned char *out, long length,
         RC2_KEY *ks, unsigned char *iv, int enc);
-void RC2_cfb64_encrypt(unsigned char *in, unsigned char *out, long length,
-        RC2_KEY *schedule, unsigned char *ivec, int *num, int enc);
-void RC2_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
-        RC2_KEY *schedule, unsigned char *ivec, int *num);
+void RC2_cfb64_encrypt(const unsigned char *in, unsigned char *out,
+                       long length, RC2_KEY *schedule, unsigned char *ivec,
+                       int *num, int enc);
+void RC2_ofb64_encrypt(const unsigned char *in, unsigned char *out,
+                       long length, RC2_KEY *schedule, unsigned char *ivec,
+                       int *num);
 
 #ifdef  __cplusplus
 }