X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/36eb5d3d77426d8cbf4243ea752f8d8cd1d5c682..1d28cc061677bd07d9bed48dd84bd5c590247043:/src/src/mytypes.h

diff --git a/src/src/mytypes.h b/src/src/mytypes.h
index 6d2f169b7..954f683c8 100644
--- a/src/src/mytypes.h
+++ b/src/src/mytypes.h
@@ -2,8 +2,10 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
+/* Copyright (c) The Exim Maintainers 2020 - 2022 */
 /* Copyright (c) University of Cambridge 1995 - 2018 */
 /* 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
@@ -29,28 +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
 
 
@@ -124,7 +139,7 @@ functions that are called quite often; for other calls to external libraries
 #define Ustrtoul(s,t,b)    strtoul(CCS(s),CSS(t),b)
 #define Uunlink(s)         unlink(CCS(s))
 
-#ifdef EM_VERSION_C
+#if defined(EM_VERSION_C) || defined(LOCAL_SCAN) || defined(DLFUNC_IMPL)
 # define Ustrcat(s,t)       strcat(CS(s), CCS(t))
 # define Ustrcpy(s,t)       strcpy(CS(s), CCS(t))
 # define Ustrncat(s,t,n)    strncat(CS(s), CCS(t), n)