Remove whitespace

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

diff --git a/src/src/exim.h b/src/src/exim.h
index e44cad788f2e671aaca289f0ea1aef5bd31b1eb6..ec809d6b7e5fc2b859f05037d08d9fa32d83112f 100644 (file)
--- a/src/src/exim.h
+++ b/src/src/exim.h
@@ -1,10 +1,8 @@
-/* $Cambridge: exim/src/src/exim.h,v 1.11 2005/04/27 10:00:18 ph10 Exp $ */
-

 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 

-/* Copyright (c) University of Cambridge 1995 - 2005 */
+/* Copyright (c) University of Cambridge 1995 - 2012 */

 /* See the file NOTICE for conditions of use and distribution. */
 
 
 /* See the file NOTICE for conditions of use and distribution. */
 
 


@@ -17,6 +15,18 @@ most of these includes. */
 
 #define HAVE_STATFS
 
 
 #define HAVE_STATFS
 

+/* Similarly, assume most systems have srandom() unless os.h undefines it.
+This call dates back at least as far as SUSv2. */
+
+#define HAVE_SRANDOM
+
+/* This is primarily for the Gnu C library; we define it before os.h so that
+os.h has a chance to hurriedly undef it, Just In Case.  We need C99 for some
+64-bit math support, and defining _ISOC99_SOURCE breaks <resolv.h> and friends.
+*/
+
+#define _GNU_SOURCE 1
+

 /* First of all include the os-specific header, which might set things that
 are needed by any of the other headers, including system headers. */
 
 /* First of all include the os-specific header, which might set things that
 are needed by any of the other headers, including system headers. */
 


@@ -45,10 +55,16 @@ making unique names. */
 #define LOCALHOST_MAX  10
 #endif
 
 #define LOCALHOST_MAX  10
 #endif
 

+/* If not overridden by os.h, dynamic libraries have filenames ending .so */
+#ifndef DYNLIB_FN_EXT
+# define DYNLIB_FN_EXT "so"
+#endif
+

 /* ANSI C standard includes */
 
 #include <ctype.h>
 #include <locale.h>
 /* ANSI C standard includes */
 
 #include <ctype.h>
 #include <locale.h>

+#include <math.h>

 #include <signal.h>
 #include <stdarg.h>
 #include <stddef.h>
 #include <signal.h>
 #include <stdarg.h>
 #include <stddef.h>


@@ -68,16 +84,37 @@ making unique names. */
 #include <limits.h>
 #endif
 
 #include <limits.h>
 #endif
 

+/* C99 integer types, figure out how to undo this if needed for older systems */
+
+#include <inttypes.h>
+

 /* Just in case some aged system doesn't define them... */
 
 #ifndef INT_MAX
 #define INT_MAX 2147483647
 #endif
 
 /* Just in case some aged system doesn't define them... */
 
 #ifndef INT_MAX
 #define INT_MAX 2147483647
 #endif
 

+#ifndef INT_MIN
+#define INT_MIN (-INT_MAX - 1)
+#endif
+
+#ifndef SHRT_MAX
+#define SHRT_MAX 32767
+#endif
+

 #ifndef UCHAR_MAX
 #define UCHAR_MAX 255
 #endif
 
 #ifndef UCHAR_MAX
 #define UCHAR_MAX 255
 #endif
 

+
+/* To match int_eximarith_t.  Define in OS/os.h-<your-system> to override. */
+#ifndef EXIM_ARITH_MAX
+# define EXIM_ARITH_MAX ((int_eximarith_t)9223372036854775807LL)
+#endif
+#ifndef EXIM_ARITH_MIN
+# define EXIM_ARITH_MIN (-EXIM_ARITH_MAX - 1)
+#endif
+

 /* Some systems have PATH_MAX and some have MAX_PATH_LEN. */
 
 #ifndef PATH_MAX
 /* Some systems have PATH_MAX and some have MAX_PATH_LEN. */
 
 #ifndef PATH_MAX


@@ -92,7 +129,9 @@ making unique names. */
 #include <sys/file.h>
 #include <dirent.h>
 #include <netdb.h>
 #include <sys/file.h>
 #include <dirent.h>
 #include <netdb.h>

+#ifndef NO_POLL_H

 #include <poll.h>
 #include <poll.h>

+#endif

 #include <pwd.h>
 #include <grp.h>
 #include <syslog.h>
 #include <pwd.h>
 #include <grp.h>
 #include <syslog.h>


@@ -218,23 +257,19 @@ or a macro with entries f_frsize and f_bsize. */
 #include <fcntl.h>
 
 /* There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
 #include <fcntl.h>
 
 /* There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts

-with the definition in sysexits.h. Arrange to preserve it, even though at
-present Exim doesn't actually use it. */
+with the definition in sysexits.h. Exim does not actually use this macro, so we
+just undefine it. It would be nice to be able to re-instate the definition from
+sysexits.h if there is no definition in unistd.h, but I do not think there is a
+way to do this in C because macro definitions are not scanned for other macros
+at definition time. [The code here used to assume they were, until I was
+disabused of the notion. Luckily, since EX_OK is not used, it didn't matter.] */

 
 #ifdef EX_OK
 
 #ifdef EX_OK

-#define SAVE_EX_OK EX_OK

 #undef EX_OK
 #endif
 
 #include <unistd.h>
 
 #undef EX_OK
 #endif
 
 #include <unistd.h>
 

-#ifdef SAVE_EX_OK
-#ifdef EX_OK
-#undef EX_OK
-#endif
-#define EX_OK SAVE_EX_OK
-#endif
-

 #include <utime.h>
 #ifndef NO_NET_IF_H
 #include <net/if.h>
 #include <utime.h>
 #ifndef NO_NET_IF_H
 #include <net/if.h>


@@ -280,12 +315,55 @@ header files. I don't suppose they have T_SRV either. */
 #define T_SRV 33
 #endif
 
 #define T_SRV 33
 #endif
 

-/* We use the private type T_ZNS for retrieving the nameservers for the
-enclosing zone of a domain, and the private type T_MXH for retrieving
-the MX hostnames only (without their priorities). */
+/* Many systems do not have T_SPF. */
+
+#ifndef T_SPF
+#define T_SPF 99
+#endif
+
+/* It seems that some versions of arpa/nameser.h don't define *any* of the
+T_xxx macros, which seem to be non-standard nowadays. Just to be on the safe
+side, put in definitions for all the ones that Exim uses. */
+
+#ifndef T_A
+#define T_A 1
+#endif
+
+#ifndef T_CNAME
+#define T_CNAME 5
+#endif
+
+#ifndef T_SOA
+#define T_SOA 6
+#endif
+
+#ifndef T_MX
+#define T_MX 15
+#endif
+
+#ifndef T_NS
+#define T_NS 2
+#endif
+
+#ifndef T_PTR
+#define T_PTR 12
+#endif
+
+
+/* We define a few private types for special DNS lookups:
+
+ . T_ZNS gets the nameservers of the enclosing zone of a domain
+
+ . T_MXH gets the MX hostnames only (without their priorities)
+
+ . T_CSA gets the domain's Client SMTP Authorization SRV record
+
+*/

 
 #define T_ZNS (-1)
 #define T_MXH (-2)
 
 #define T_ZNS (-1)
 #define T_MXH (-2)

+#define T_CSA (-3)
+#define T_APL (-4)

 
 /* The resolv.h header defines __P(x) on some Solaris 2.5.1 systems (without
 checking that it is already defined, in fact). This conflicts with other
 
 /* The resolv.h header defines __P(x) on some Solaris 2.5.1 systems (without
 checking that it is already defined, in fact). This conflicts with other


@@ -302,6 +380,17 @@ to undefine it if resolv.h defines it. */
 #undef __P
 #endif
 
 #undef __P
 #endif
 

+/* If not defined by os.h, we do nothing special to push DNS resolver state
+back to be available by the classic resolver routines.  Also, provide
+prototype for our get routine, unless defined away. */
+
+#ifndef os_put_dns_resolver_res
+# define os_put_dns_resolver_res(R) do {/**/} while(0)
+#endif
+#ifndef os_get_dns_resolver_res
+res_state os_get_dns_resolver_res(void);
+#endif
+

 /* These three are to support the IP option logging code. Linux is
 different to everyone else and there are also other systems which don't
 have netinet/ip_var.h, so there's a general macro to control its inclusion. */
 /* These three are to support the IP option logging code. Linux is
 different to everyone else and there are also other systems which don't
 have netinet/ip_var.h, so there's a general macro to control its inclusion. */


@@ -379,12 +468,11 @@ extern int ferror(FILE *);
 
 /* The header from the PCRE regex package */
 
 
 /* The header from the PCRE regex package */
 

-#include "pcre/pcre.h"
+#include <pcre.h>

 
 /* Exim includes are in several files. Note that local_scan.h #includes
 
 /* Exim includes are in several files. Note that local_scan.h #includes

-mytypes.h and store.h, so we don't need to mention them explicitly. */
-
-#include "config.h"
+config.h, mytypes.h, and store.h, so we don't need to mention them explicitly.
+*/

 
 #include "local_scan.h"
 #include "macros.h"
 
 #include "local_scan.h"
 #include "macros.h"


@@ -404,8 +492,12 @@ mytypes.h and store.h, so we don't need to mention them explicitly. */
 #ifdef EXPERIMENTAL_SRS
 #include "srs.h"
 #endif
 #ifdef EXPERIMENTAL_SRS
 #include "srs.h"
 #endif

-#ifdef EXPERIMENTAL_DOMAINKEYS
-#include "dk.h"
+#ifndef DISABLE_DKIM
+#include "dkim.h"
+#endif
+#ifdef EXPERIMENTAL_DMARC
+#include "dmarc.h"
+#include <opendmarc/dmarc.h>

 #endif
 
 /* The following stuff must follow the inclusion of config.h because it
 #endif
 
 /* The following stuff must follow the inclusion of config.h because it


@@ -415,10 +507,16 @@ requires various things that are set therein. */
 #include <iconv.h>
 #endif
 
 #include <iconv.h>
 #endif
 

-#if defined(USE_READLINE) || defined(EXPAND_DLFUNC)
+#if defined(USE_READLINE) || defined(EXPAND_DLFUNC) || defined (LOOKUP_MODULE_DIR)

 #include <dlfcn.h>
 #endif
 
 #include <dlfcn.h>
 #endif
 

+#ifdef ENABLE_DISABLE_FSYNC
+#define EXIMfsync(f) (disable_fsync? 0 : fsync(f))
+#else
+#define EXIMfsync(f) fsync(f)
+#endif
+

 /* Backward compatibility; LOOKUP_LSEARCH now includes all three */
 
 #if (!defined LOOKUP_LSEARCH) && (defined LOOKUP_WILDLSEARCH || defined LOOKUP_NWILDLSEARCH)
 /* Backward compatibility; LOOKUP_LSEARCH now includes all three */
 
 #if (!defined LOOKUP_LSEARCH) && (defined LOOKUP_WILDLSEARCH || defined LOOKUP_NWILDLSEARCH)


@@ -426,13 +524,15 @@ requires various things that are set therein. */
 #endif
 
 /* Define a union to hold either an IPv4 or an IPv6 sockaddr structure; this
 #endif
 
 /* Define a union to hold either an IPv4 or an IPv6 sockaddr structure; this

-simplifies some of the coding. */
+simplifies some of the coding.  We include the sockaddr to reduce type-punning
+issues in C99. */

 
 union sockaddr_46 {
   struct sockaddr_in v4;
   #if HAVE_IPV6
   struct sockaddr_in6 v6;
   #endif
 
 union sockaddr_46 {
   struct sockaddr_in v4;
   #if HAVE_IPV6
   struct sockaddr_in6 v6;
   #endif

+  struct sockaddr v0;

 };
 
 /* If SUPPORT_TLS is not defined, ensure that USE_GNUTLS is also not defined
 };
 
 /* If SUPPORT_TLS is not defined, ensure that USE_GNUTLS is also not defined


@@ -480,5 +580,4 @@ default to EDQUOT if it exists, otherwise ENOSPC. */
   #endif
 #endif
 
   #endif
 #endif
 

-

 /* End of exim.h */
 /* End of exim.h */