Docs: more indexing of affix-related bits

[exim.git] / src / OS / os.h-FreeBSD

diff --git a/src/OS/os.h-FreeBSD b/src/OS/os.h-FreeBSD
index a67ca13b73f16227d5a203a0d30b4de31efa164e..4f1c616f090237c74429aa11eae77f07d2bad3a1 100644 (file)
--- a/src/OS/os.h-FreeBSD
+++ b/src/OS/os.h-FreeBSD
@@ -1,4 +1,10 @@
 /* Exim: OS-specific C header file for FreeBSD */
+/* Copyright (c) University of Cambridge 1995 - 2018 */
+/* See the file NOTICE for conditions of use and distribution. */
+
+
+#include <sys/types.h>
+#include <sys/param.h>
 
 #define HAVE_BSD_GETLOADAVG
 #define HAVE_SETCLASSRESOURCES
@@ -8,6 +14,14 @@
 #define HAVE_SRANDOMDEV
 #define HAVE_ARC4RANDOM
 
+/* Applications should not call arc4random_stir() explicitly after
+ * FreeBSD r227520 (approximately 1000002).
+ * Set NOT_HAVE_ARC4RANDOM_STIR if the version released is past
+ * that point. */
+#if __FreeBSD_version >= 1000002
+# define NOT_HAVE_ARC4RANDOM_STIR
+#endif
+
 typedef struct flock flock_t;
 
 /* iconv arg2 type: libiconv in Ports uses "const char* * inbuf" and was
@@ -18,6 +32,9 @@ typedef struct flock flock_t;
  * says that libc has iconv since 2013, in 10-CURRENT.  FreeBSD man-pages
  * shows it included in 10.0-RELEASE.  Writing this in 2017, 10.3 is the
  * oldest supported release, so we should assume non-libiconv by default.
+ * (Actually, people still using old releases past EOL; we shouldn't support
+ * them but I don't want to deal with howls of complaints because we dare
+ * to not support the unsupported, so guard this on FreeBSD 10+)
  *
  * Thus we no longer override iconv.
  *
@@ -25,6 +42,35 @@ typedef struct flock flock_t;
  * to include-path (likely) then we'll get that.  So define a variable
  * which makes the libiconv try to not interfere with OS iconv.
  */
-#define LIBICONV_PLUG
+#if __FreeBSD__ >= 10
+# define LIBICONV_PLUG
+#endif
+/* for more specific version constraints, look at __FreeBSD_version
+ * from <sys/param.h> */
+
+/* When using DKIM, setting OS_SENDFILE can increase
+performance on outgoing mail a bit. */
+
+#define OS_SENDFILE
+extern ssize_t os_sendfile(int, int, off_t *, size_t);
+
+
+/*******************/
+
+/* TCP_FASTOPEN support.  There does not seems to be a
+MSG_FASTOPEN defined yet... */
+#define EXIM_TFO_PROBE
+
+#include <netinet/tcp.h>        /* for TCP_FASTOPEN */
+#include <sys/socket.h>         /* for MSG_FASTOPEN */
+#if defined(TCP_FASTOPEN) && !defined(MSG_FASTOPEN)
+# define MSG_FASTOPEN 0x20000000
+#endif
+
+/* for TCP state-variable values, for TFO logging */
+#include <netinet/tcp_fsm.h>
+#define TCP_SYN_RECV TCPS_SYN_RECEIVED
+
+/*******************/
 
 /* End */