SPDX: Mass-update to GPL-2.0-or-later

[exim.git] / src / src / mytypes.h

diff --git a/src/src/mytypes.h b/src/src/mytypes.h
index 8ae7cbbb45e6509c0eeee0dc74c0824f85f18898..954f683c828bf0dbd7ac58f200eec2c618026b4a 100644 (file)
--- a/src/src/mytypes.h
+++ b/src/src/mytypes.h
@@ -2,9 +2,10 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
+/* Copyright (c) The Exim Maintainers 2020 - 2022 */
 /* Copyright (c) University of Cambridge 1995 - 2018 */
-/* Copyright (c) The Exim Maintainers 2020 */
 /* See the file NOTICE for conditions of use and distribution. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 
 /* This header file contains type definitions and macros that I use as
@@ -30,28 +31,41 @@ local_scan.h includes it and exim.h includes them both (to get this earlier). */
 
 
 /* If gcc is being used to compile Exim, we can use its facility for checking
-the arguments of printf-like functions. This is done by a macro. */
+the arguments of printf-like functions. This is done by a macro.
+OpenBSD has unfortunately taken to objecting to use of %n in printf
+so we have to give up on all of the available parameter checking. */
 
 #if defined(__GNUC__) || defined(__clang__)
-# define PRINTF_FUNCTION(A,B)  __attribute__((format(printf,A,B)))
+# ifndef __OpenBSD__
+#  define PRINTF_FUNCTION(A,B) __attribute__((format(printf,A,B)))
+# endif
 # define ARG_UNUSED            __attribute__((__unused__))
+# define FUNC_MAYBE_UNUSED     __attribute__((__unused__))
 # define WARN_UNUSED_RESULT    __attribute__((__warn_unused_result__))
 # define ALLOC                 __attribute__((malloc))
-# define ALLOC_SIZE(A)         __attribute__((alloc_size(A)))
 # define NORETURN              __attribute__((noreturn))
+# ifndef __clang__
+#  define ALLOC_SIZE(A)                __attribute__((alloc_size(A)))
+# else
+#  define ALLOC_SIZE(A)                /**/
+# endif
 #else
-# define PRINTF_FUNCTION(A,B)
 # define ARG_UNUSED            /**/
+# define FUNC_MAYBE_UNUSED     /**/
 # define WARN_UNUSED_RESULT    /**/
 # define ALLOC                 /**/
 # define ALLOC_SIZE(A)         /**/
 # define NORETURN              /**/
 #endif
 
+#ifndef PRINTF_FUNCTION
+# define PRINTF_FUNCTION(A,B)  /**/
+#endif
+
 #ifdef WANT_DEEPER_PRINTF_CHECKS
 # define ALMOST_PRINTF(A, B) PRINTF_FUNCTION(A, B)
 #else
-# define ALMOST_PRINTF(A, B)
+# define ALMOST_PRINTF(A, B)   /**/
 #endif