- Added const-correctness to main codebase
diff --git a/library/sha2.c b/library/sha2.c
index 8afe73c..87f02ea 100644
--- a/library/sha2.c
+++ b/library/sha2.c
@@ -94,7 +94,7 @@
ctx->is224 = is224;
}
-static void sha2_process( sha2_context *ctx, unsigned char data[64] )
+static void sha2_process( sha2_context *ctx, const unsigned char data[64] )
{
unsigned long temp1, temp2, W[64];
unsigned long A, B, C, D, E, F, G, H;
@@ -228,7 +228,7 @@
/*
* SHA-256 process buffer
*/
-void sha2_update( sha2_context *ctx, unsigned char *input, int ilen )
+void sha2_update( sha2_context *ctx, const unsigned char *input, int ilen )
{
int fill;
unsigned long left;
@@ -314,7 +314,7 @@
/*
* output = SHA-256( input buffer )
*/
-void sha2( unsigned char *input, int ilen,
+void sha2( const unsigned char *input, int ilen,
unsigned char output[32], int is224 )
{
sha2_context ctx;
@@ -329,7 +329,7 @@
/*
* output = SHA-256( file contents )
*/
-int sha2_file( char *path, unsigned char output[32], int is224 )
+int sha2_file( const char *path, unsigned char output[32], int is224 )
{
FILE *f;
size_t n;
@@ -361,7 +361,7 @@
/*
* SHA-256 HMAC context setup
*/
-void sha2_hmac_starts( sha2_context *ctx, unsigned char *key, int keylen,
+void sha2_hmac_starts( sha2_context *ctx, const unsigned char *key, int keylen,
int is224 )
{
int i;
@@ -392,7 +392,7 @@
/*
* SHA-256 HMAC process buffer
*/
-void sha2_hmac_update( sha2_context *ctx, unsigned char *input, int ilen )
+void sha2_hmac_update( sha2_context *ctx, const unsigned char *input, int ilen )
{
sha2_update( ctx, input, ilen );
}
@@ -420,8 +420,8 @@
/*
* output = HMAC-SHA-256( hmac key, input buffer )
*/
-void sha2_hmac( unsigned char *key, int keylen,
- unsigned char *input, int ilen,
+void sha2_hmac( const unsigned char *key, int keylen,
+ const unsigned char *input, int ilen,
unsigned char output[32], int is224 )
{
sha2_context ctx;