Constification.

apps/apps.h

@@ -265,9 +265,10 @@ ENGINE *setup_engine(BIO *err, const char *engine, int debug);
 
 #ifndef OPENSSL_NO_OCSP
 OCSP_RESPONSE *process_responder(BIO *err, OCSP_REQUEST *req,
-			char *host, char *path, char *port, int use_ssl,
-			STACK_OF(CONF_VALUE) *headers,
-			int req_timeout);
+				 const char *host, const char *path,
+				 const char *port, int use_ssl,
+				 const STACK_OF(CONF_VALUE) *headers,
+				 int req_timeout);
 #endif
 
 int load_config(BIO *err, CONF *cnf);