gcrypt: initialize secure memory on startup

[tinc] / src / digest.h

diff --git a/src/digest.h b/src/digest.h
index 1cebf58..08c5141 100644 (file)
--- a/src/digest.h
+++ b/src/digest.h
@@ -3,7 +3,7 @@
 
 /*
     digest.h -- header file digest.c
-    Copyright (C) 2007-2016 Guus Sliepen <guus@tinc-vpn.org>
+    Copyright (C) 2007-2022 Guus Sliepen <guus@tinc-vpn.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -27,15 +27,25 @@
 
 #ifndef DISABLE_LEGACY
 
+#ifdef HAVE_OPENSSL
+#include "openssl/digest.h"
+#elif HAVE_LIBGCRYPT
+#include "gcrypt/digest.h"
+#else
+#error Incorrect cryptographic library, please reconfigure.
+#endif
+
 typedef struct digest digest_t;
 
-extern digest_t *digest_open_by_name(const char *name, size_t maclength) __attribute__((__malloc__));
-extern digest_t *digest_open_by_nid(int nid, size_t maclength) __attribute__((__malloc__));
+extern bool digest_open_by_name(digest_t *digest, const char *name, size_t maclength);
+extern bool digest_open_by_nid(digest_t *digest, nid_t nid, size_t maclength);
+extern void digest_free(digest_t *digest);
+extern digest_t *digest_alloc(void) ATTR_MALLOC ATTR_DEALLOCATOR(digest_free);
 extern void digest_close(digest_t *digest);
-extern bool digest_create(digest_t *digest, const void *indata, size_t inlen, void *outdata) __attribute__((__warn_unused_result__));
-extern bool digest_verify(digest_t *digest, const void *indata, size_t inlen, const void *digestdata) __attribute__((__warn_unused_result__));
-extern bool digest_set_key(digest_t *digest, const void *key, size_t len) __attribute__((__warn_unused_result__));
-extern int digest_get_nid(const digest_t *digest);
+extern bool digest_create(digest_t *digest, const void *indata, size_t inlen, void *outdata) ATTR_WARN_UNUSED;
+extern bool digest_verify(digest_t *digest, const void *indata, size_t inlen, const void *digestdata) ATTR_WARN_UNUSED;
+extern bool digest_set_key(digest_t *digest, const void *key, size_t len) ATTR_WARN_UNUSED;
+extern nid_t digest_get_nid(const digest_t *digest);
 extern size_t digest_keylength(const digest_t *digest);
 extern size_t digest_length(const digest_t *digest);
 extern bool digest_active(const digest_t *digest);