3 files changed, 5 insertions, 5 deletions

diff --git a/src/lib/libcrypto/hmac/hmac.c b/src/lib/libcrypto/hmac/hmac.c
index 5c349bbb56..23b7c98f8f 100644
--- a/src/lib/libcrypto/hmac/hmac.c
+++ b/src/lib/libcrypto/hmac/hmac.c
@@ -109,7 +109,7 @@ void HMAC_Init(HMAC_CTX *ctx, const void *key, int len,
         memcpy(&ctx->md_ctx,&ctx->i_ctx,sizeof(ctx->i_ctx));
         }
 
-void HMAC_Update(HMAC_CTX *ctx, unsigned char *data, int len)
+void HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, int len)
         {
         EVP_DigestUpdate(&(ctx->md_ctx),data,len);
         }
@@ -134,7 +134,7 @@ void HMAC_cleanup(HMAC_CTX *ctx)
         }
 
 unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len,
-                    unsigned char *d, int n, unsigned char *md,
+                    const unsigned char *d, int n, unsigned char *md,
                     unsigned int *md_len)
         {
         HMAC_CTX c;
diff --git a/src/lib/libcrypto/hmac/hmac.h b/src/lib/libcrypto/hmac/hmac.h
index f928975fcd..223eeda7f3 100644
--- a/src/lib/libcrypto/hmac/hmac.h
+++ b/src/lib/libcrypto/hmac/hmac.h
@@ -85,11 +85,11 @@ typedef struct hmac_ctx_st
 
 void HMAC_Init(HMAC_CTX *ctx, const void *key, int len,
                const EVP_MD *md);
-void HMAC_Update(HMAC_CTX *ctx,unsigned char *key, int len);
+void HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, int len);
 void HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len);
 void HMAC_cleanup(HMAC_CTX *ctx);
 unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len,
-                    unsigned char *d, int n, unsigned char *md,
+                    const unsigned char *d, int n, unsigned char *md,
                     unsigned int *md_len);
 
 
diff --git a/src/lib/libcrypto/hmac/hmactest.c b/src/lib/libcrypto/hmac/hmactest.c
index 9a67dff36a..4b56b8ee13 100644
--- a/src/lib/libcrypto/hmac/hmactest.c
+++ b/src/lib/libcrypto/hmac/hmactest.c
@@ -73,7 +73,7 @@ int main(int argc, char *argv[])
 #include <openssl/ebcdic.h>
 #endif
 
-struct test_st
+static struct test_st
         {
         unsigned char key[16];
         int key_len;