Import Upstream version 4.92

[hcoop/debian/exim4.git] / src / sha_ver.h

diff --git a/src/sha_ver.h b/src/sha_ver.h
new file mode 100644 (file)
index 0000000..6140878
--- /dev/null
+++ b/src/sha_ver.h
@@ -0,0 +1,46 @@
+/*************************************************
+*     Exim - an Internet mail transport agent    *
+*************************************************/
+
+/* Copyright (c) Jeremy Harris 2018 */
+/* See the file NOTICE for conditions of use and distribution. */
+
+/* SHA routine selection */
+
+#include "exim.h"
+
+/* Please be aware that pulling in extra headers which are not in the system
+ * includes may require careful juggling of CFLAGS in
+ * scripts/Configure-Makefile -- that logic should be kept in sync with this.
+ * In particular, building with just something like USE_OPENSSL_PC=openssl
+ * and not massaging CFLAGS in Local/Makefile is fully supported.
+ */
+
+#ifdef SUPPORT_TLS
+
+# define EXIM_HAVE_SHA2
+
+# ifdef USE_GNUTLS
+#  include <gnutls/gnutls.h>
+
+#  if GNUTLS_VERSION_NUMBER >= 0x020a00
+#   define SHA_GNUTLS
+#   if GNUTLS_VERSION_NUMBER >= 0x030500
+#    define EXIM_HAVE_SHA3             /*MMMM*/
+#   endif
+#  else
+#   define SHA_GCRYPT
+#  endif
+
+# else
+#  define SHA_OPENSSL
+#  include <openssl/ssl.h>
+#  if (OPENSSL_VERSION_NUMBER >= 0x10101000L) && !defined(LIBRESSL_VERSION_NUMBER)
+#   define EXIM_HAVE_SHA3
+#  endif
+# endif
+
+#else
+# define SHA_NATIVE
+#endif
+