Fix constness of key generation attributes

Author: Ivan Stepic

src/libp11-int.h

@@ -312,10 +312,10 @@ extern int pkcs11_generate_random(PKCS11_SLOT_private *, unsigned char *r, unsig
 
 /* Generate and store a private key on the token */
 extern int pkcs11_rsa_keygen(PKCS11_SLOT_private *tpriv,
-	unsigned int bits, char *label, unsigned char* id, size_t id_len);
+	unsigned int bits, const char *label, unsigned char* id, size_t id_len);
 
 extern int pkcs11_ec_keygen(PKCS11_SLOT_private *tpriv,
-	const char *curve , char *label, unsigned char* id, size_t id_len);
+	const char *curve , const char *label, unsigned char* id, size_t id_len);
 
 /* Internal implementation of deprecated features */
 

src/libp11.h

@@ -120,9 +120,9 @@ typedef struct PKCS11_kgen_attrs_st {
 		PKCS11_EC_KGEN *ec;
 		PKCS11_RSA_KGEN *rsa;
 	} kgen;
-	char *token_label;
-	char *key_label;
-	char *key_id;
+	const char *token_label;
+	const char *key_label;
+	const char *key_id;
 } PKCS11_KGEN_ATTRS;
 
 /**

src/p11_key.c

@@ -253,7 +253,7 @@ int pkcs11_reload_object(PKCS11_OBJECT_private *obj)
  * Generate a key pair directly on token
  */
 int pkcs11_rsa_keygen(PKCS11_SLOT_private *slot, unsigned int bits,
-		char *label, unsigned char* id, size_t id_len) {
+		const char *label, unsigned char* id, size_t id_len) {
 
 	PKCS11_CTX_private *ctx = slot->ctx;
 	CK_SESSION_HANDLE session;
@@ -309,7 +309,7 @@ int pkcs11_rsa_keygen(PKCS11_SLOT_private *slot, unsigned int bits,
 }
 
 int pkcs11_ec_keygen(PKCS11_SLOT_private *slot, const char *curve,
-		char *label, unsigned char *id, size_t id_len)
+		const char *label, unsigned char *id, size_t id_len)
 {
 	PKCS11_CTX_private *ctx = slot->ctx;
 	CK_SESSION_HANDLE session;