Move the TLS resumption support from Experimental to mainline

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

diff --git a/src/src/exim.h b/src/src/exim.h
index 2b3f6434e374b5a1d844d352299ca8cd94c78a68..1ddba187bb99fb8fc51a2484f2f0bba54e28d91b 100644 (file)
--- a/src/src/exim.h
+++ b/src/src/exim.h
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 

-/* Copyright (c) University of Cambridge 1995 - 2014 */
+/* Copyright (c) University of Cambridge 1995 - 2018 */

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


@@ -11,6 +11,9 @@ that is needed. They don't all need everything, of course, but it's far too
 messy to have each one importing its own list, and anyway, most of them need
 most of these includes. */
 
 messy to have each one importing its own list, and anyway, most of them need
 most of these includes. */
 

+#ifndef EXIM_H
+#define EXIM_H
+

 /* Assume most systems have statfs() unless os.h undefines this macro */
 
 #define HAVE_STATFS
 /* Assume most systems have statfs() unless os.h undefines this macro */
 
 #define HAVE_STATFS


@@ -35,7 +38,7 @@ are needed by any of the other headers, including system headers. */
 /* If it didn't define os_find_running_interfaces, use the common function. */
 
 #ifndef os_find_running_interfaces
 /* If it didn't define os_find_running_interfaces, use the common function. */
 
 #ifndef os_find_running_interfaces

-#define os_find_running_interfaces os_common_find_running_interfaces
+# define os_find_running_interfaces os_common_find_running_interfaces

 #endif
 
 /* If it didn't define the base for "base 62" numbers, we really do use 62.
 #endif
 
 /* If it didn't define the base for "base 62" numbers, we really do use 62.


@@ -44,15 +47,15 @@ Darwin, with their case-insensitive file systems, that can't use base 62 for
 making unique names. */
 
 #ifndef BASE_62
 making unique names. */
 
 #ifndef BASE_62

-#define BASE_62 62
+# define BASE_62 62

 #endif
 
 /* The maximum value of localhost_number depends on the base being used */
 
 #if BASE_62 == 62
 #endif
 
 /* The maximum value of localhost_number depends on the base being used */
 
 #if BASE_62 == 62

-#define LOCALHOST_MAX  16
+# define LOCALHOST_MAX  16

 #else
 #else

-#define LOCALHOST_MAX  10
+# define LOCALHOST_MAX  10

 #endif
 
 /* If not overridden by os.h, dynamic libraries have filenames ending .so */
 #endif
 
 /* If not overridden by os.h, dynamic libraries have filenames ending .so */


@@ -77,11 +80,11 @@ making unique names. */
 
 #include <errno.h>
 #if defined(__svr4__) && defined(__sparc) && ! defined(__EXTENSIONS__)
 
 #include <errno.h>
 #if defined(__svr4__) && defined(__sparc) && ! defined(__EXTENSIONS__)

-#define __EXTENSIONS__  /* so that SunOS 5 gets NGROUPS_MAX */
-#include <limits.h>
-#undef  __EXTENSIONS__
+# define __EXTENSIONS__  /* so that SunOS 5 gets NGROUPS_MAX */
+# include <limits.h>
+# undef  __EXTENSIONS__

 #else
 #else

-#include <limits.h>
+# include <limits.h>

 #endif
 
 /* C99 integer types, figure out how to undo this if needed for older systems */
 #endif
 
 /* C99 integer types, figure out how to undo this if needed for older systems */


@@ -91,19 +94,19 @@ making unique names. */
 /* Just in case some aged system doesn't define them... */
 
 #ifndef INT_MAX
 /* Just in case some aged system doesn't define them... */
 
 #ifndef INT_MAX

-#define INT_MAX 2147483647
+# define INT_MAX 2147483647

 #endif
 
 #ifndef INT_MIN
 #endif
 
 #ifndef INT_MIN

-#define INT_MIN (-INT_MAX - 1)
+# define INT_MIN (-INT_MAX - 1)

 #endif
 
 #ifndef SHRT_MAX
 #endif
 
 #ifndef SHRT_MAX

-#define SHRT_MAX 32767
+# define SHRT_MAX 32767

 #endif
 
 #ifndef UCHAR_MAX
 #endif
 
 #ifndef UCHAR_MAX

-#define UCHAR_MAX 255
+# define UCHAR_MAX 255

 #endif
 
 
 #endif
 
 


@@ -118,11 +121,11 @@ making unique names. */
 /* 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

-#ifdef MAX_PATH_LEN
-#define PATH_MAX MAX_PATH_LEN
-#else
-#define PATH_MAX 1024
-#endif
+# ifdef MAX_PATH_LEN
+#  define PATH_MAX MAX_PATH_LEN
+# else
+#  define PATH_MAX 1024
+# endif

 #endif
 
 #include <sys/types.h>
 #endif
 
 #include <sys/types.h>


@@ -130,7 +133,7 @@ making unique names. */
 #include <dirent.h>
 #include <netdb.h>
 #ifndef NO_POLL_H
 #include <dirent.h>
 #include <netdb.h>
 #ifndef NO_POLL_H

-#include <poll.h>
+# include <poll.h>

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


@@ -140,11 +143,11 @@ making unique names. */
 in sys/file.h. */
 
 #ifndef LOCK_SH
 in sys/file.h. */
 
 #ifndef LOCK_SH

-#define NO_FLOCK
+# define NO_FLOCK

 #endif
 
 #ifndef NO_SYSEXITS        /* some OS don't have this */
 #endif
 
 #ifndef NO_SYSEXITS        /* some OS don't have this */

-#include <sysexits.h>
+# include <sysexits.h>

 #endif
 
 /* A few OS don't have socklen_t; their os.h files define EXIM_SOCKLEN_T to
 #endif
 
 /* A few OS don't have socklen_t; their os.h files define EXIM_SOCKLEN_T to


@@ -152,22 +155,22 @@ be size_t or whatever. We used to use SOCKLEN_T, but then it was discovered
 that this is used by the AIX include files. */
 
 #ifndef EXIM_SOCKLEN_T
 that this is used by the AIX include files. */
 
 #ifndef EXIM_SOCKLEN_T

-#define EXIM_SOCKLEN_T socklen_t
+# define EXIM_SOCKLEN_T socklen_t

 #endif
 
 /* Ensure that the sysexits we reference are defined */
 
 #ifndef EX_UNAVAILABLE
 #endif
 
 /* Ensure that the sysexits we reference are defined */
 
 #ifndef EX_UNAVAILABLE

-#define EX_UNAVAILABLE 69        /* service unavailable; used for execv fail */
+# define EX_UNAVAILABLE 69        /* service unavailable; used for execv fail */

 #endif
 #ifndef EX_CANTCREAT
 #endif
 #ifndef EX_CANTCREAT

-#define EX_CANTCREAT   73        /* can't create file: treat as temporary */
+# define EX_CANTCREAT   73        /* can't create file: treat as temporary */

 #endif
 #ifndef EX_TEMPFAIL
 #endif
 #ifndef EX_TEMPFAIL

-#define EX_TEMPFAIL    75        /* temp failure; user is invited to retry */
+# define EX_TEMPFAIL    75        /* temp failure; user is invited to retry */

 #endif
 #ifndef EX_CONFIG
 #endif
 #ifndef EX_CONFIG

-#define EX_CONFIG      78        /* configuration error */
+# define EX_CONFIG      78        /* configuration error */

 #endif
 
 /* This one is not in any sysexits file that I've come across */
 #endif
 
 /* This one is not in any sysexits file that I've come across */


@@ -179,7 +182,7 @@ that this is used by the AIX include files. */
 #include <sys/param.h>
 
 #ifndef NO_SYS_RESOURCE_H  /* QNX doesn't have this */
 #include <sys/param.h>
 
 #ifndef NO_SYS_RESOURCE_H  /* QNX doesn't have this */

-#include <sys/resource.h>
+# include <sys/resource.h>

 #endif
 
 #include <sys/socket.h>
 #endif
 
 #include <sys/socket.h>


@@ -190,7 +193,7 @@ so that it can appear in the code, even if it is never actually used when
 the code is run. It saves some #ifdef occurrences. */
 
 #ifndef AF_INET6
 the code is run. It saves some #ifdef occurrences. */
 
 #ifndef AF_INET6

-#define AF_INET6 24
+# define AF_INET6 24

 #endif
 
 #include <sys/ioctl.h>
 #endif
 
 #include <sys/ioctl.h>


@@ -231,24 +234,24 @@ or a macro with entries f_frsize and f_bsize. */
   f_free. */
 
   #ifndef F_BAVAIL
   f_free. */
 
   #ifndef F_BAVAIL

-  #define F_BAVAIL f_bavail
+  # define F_BAVAIL f_bavail

   #endif
 
   #ifndef F_FAVAIL
   #endif
 
   #ifndef F_FAVAIL

-  #define F_FAVAIL f_ffree
+  # define F_FAVAIL f_ffree

   #endif
 
   /* All the systems I've been able to look at seem to have F_FILES */
 
   #ifndef F_FILES
   #endif
 
   /* All the systems I've been able to look at seem to have F_FILES */
 
   #ifndef F_FILES

-  #define F_FILES  f_files
+  # define F_FILES  f_files

   #endif
 
 #endif
 
 
 #ifndef  SIOCGIFCONF   /* HACK for SunOS 5 */
   #endif
 
 #endif
 
 
 #ifndef  SIOCGIFCONF   /* HACK for SunOS 5 */

-#include <sys/sockio.h>
+# include <sys/sockio.h>

 #endif
 
 #include <sys/stat.h>
 #endif
 
 #include <sys/stat.h>


@@ -265,14 +268,14 @@ 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
 disabused of the notion. Luckily, since EX_OK is not used, it didn't matter.] */
 
 #ifdef EX_OK

-#undef EX_OK
+# undef EX_OK

 #endif
 
 #include <unistd.h>
 
 #include <utime.h>
 #ifndef NO_NET_IF_H
 #endif
 
 #include <unistd.h>
 
 #include <utime.h>
 #ifndef NO_NET_IF_H

-#include <net/if.h>
+# include <net/if.h>

 #endif
 #include <sys/un.h>
 #include <netinet/in.h>
 #endif
 #include <sys/un.h>
 #include <netinet/in.h>


@@ -281,18 +284,6 @@ disabused of the notion. Luckily, since EX_OK is not used, it didn't matter.] */
 #include <arpa/nameser.h>
 
 
 #include <arpa/nameser.h>
 
 

-/* If arpa/nameser.h defines a maximum name server packet size, use it,
-provided it is greater than 2048. Otherwise go for a default. PACKETSZ was used
-for this, but it seems that NS_PACKETSZ is coming into use. */
-
-#if defined(NS_PACKETSZ) && NS_PACKETSZ >= 2048
-  #define MAXPACKET NS_PACKETSZ
-#elif defined(PACKETSZ) && PACKETSZ >= 2048
-  #define MAXPACKET PACKETSZ
-#else
-  #define MAXPACKET 2048
-#endif
-

 /* While IPv6 is still young the definitions of T_AAAA and T_A6 may not be
 included in arpa/nameser.h. Fudge them here. */
 
 /* While IPv6 is still young the definitions of T_AAAA and T_A6 may not be
 included in arpa/nameser.h. Fudge them here. */
 


@@ -308,22 +299,22 @@ included in arpa/nameser.h. Fudge them here. */
 header files. I don't suppose they have T_SRV either. */
 
 #ifndef T_TXT
 header files. I don't suppose they have T_SRV either. */
 
 #ifndef T_TXT

-#define T_TXT 16
+# define T_TXT 16

 #endif
 
 #ifndef T_SRV
 #endif
 
 #ifndef T_SRV

-#define T_SRV 33
+# define T_SRV 33

 #endif
 
 /* Many systems do not have T_SPF. */
 
 #ifndef T_SPF
 #endif
 
 /* Many systems do not have T_SPF. */
 
 #ifndef T_SPF

-#define T_SPF 99
+# define T_SPF 99

 #endif
 
 /* New TLSA record for DANE */
 #ifndef T_TLSA
 #endif
 
 /* New TLSA record for DANE */
 #ifndef T_TLSA

-#define T_TLSA 52
+# define T_TLSA 52

 #endif
 #define MAX_TLSA_EXPANDED_SIZE 8192
 
 #endif
 #define MAX_TLSA_EXPANDED_SIZE 8192
 


@@ -332,27 +323,27 @@ 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
 side, put in definitions for all the ones that Exim uses. */
 
 #ifndef T_A

-#define T_A 1
+# define T_A 1

 #endif
 
 #ifndef T_CNAME
 #endif
 
 #ifndef T_CNAME

-#define T_CNAME 5
+# define T_CNAME 5

 #endif
 
 #ifndef T_SOA
 #endif
 
 #ifndef T_SOA

-#define T_SOA 6
+# define T_SOA 6

 #endif
 
 #ifndef T_MX
 #endif
 
 #ifndef T_MX

-#define T_MX 15
+# define T_MX 15

 #endif
 
 #ifndef T_NS
 #endif
 
 #ifndef T_NS

-#define T_NS 2
+# define T_NS 2

 #endif
 
 #ifndef T_PTR
 #endif
 
 #ifndef T_PTR

-#define T_PTR 12
+# define T_PTR 12

 #endif
 
 
 #endif
 
 


@@ -382,13 +373,13 @@ headers that behave likewise (see below), leading to compiler warnings. Arrange
 to undefine it if resolv.h defines it. */
 
 #if defined(__P)
 to undefine it if resolv.h defines it. */
 
 #if defined(__P)

-#define __P_WAS_DEFINED_BEFORE_RESOLV
+# define __P_WAS_DEFINED_BEFORE_RESOLV

 #endif
 
 #include <resolv.h>
 
 #if defined(__P) && ! defined (__P_WAS_DEFINED_BEFORE_RESOLV)
 #endif
 
 #include <resolv.h>
 
 #if defined(__P) && ! defined (__P_WAS_DEFINED_BEFORE_RESOLV)

-#undef __P
+# undef __P

 #endif
 
 /* If not defined by os.h, we do nothing special to push DNS resolver state
 #endif
 
 /* If not defined by os.h, we do nothing special to push DNS resolver state


@@ -410,7 +401,7 @@ have netinet/ip_var.h, so there's a general macro to control its inclusion. */
 #include <netinet/ip.h>
 
 #ifndef NO_IP_VAR_H
 #include <netinet/ip.h>
 
 #ifndef NO_IP_VAR_H

-#include <netinet/ip_var.h>
+# include <netinet/ip_var.h>

 #endif
 
 /* Linux (and some others) uses a different type for the 2nd argument of
 #endif
 
 /* Linux (and some others) uses a different type for the 2nd argument of


@@ -418,20 +409,20 @@ iconv(). It's os.h file defines ICONV_ARG2_TYPE. For the rest, define a default
 here. */
 
 #ifndef ICONV_ARG2_TYPE
 here. */
 
 #ifndef ICONV_ARG2_TYPE

-#define ICONV_ARG2_TYPE const char **
+# define ICONV_ARG2_TYPE char **

 #endif
 
 /* One OS uses a different type for the 5th argument of getsockopt */
 
 #ifndef GETSOCKOPT_ARG5_TYPE
 #endif
 
 /* One OS uses a different type for the 5th argument of getsockopt */
 
 #ifndef GETSOCKOPT_ARG5_TYPE

-#define GETSOCKOPT_ARG5_TYPE socklen_t *
+# define GETSOCKOPT_ARG5_TYPE socklen_t *

 #endif
 
 /* One operating system uses a different type for the 2nd argument of select().
 Its os.h file defines SELECT_ARG2_TYPE. For the rest, define a default here. */
 
 #ifndef SELECT_ARG2_TYPE
 #endif
 
 /* One operating system uses a different type for the 2nd argument of select().
 Its os.h file defines SELECT_ARG2_TYPE. For the rest, define a default here. */
 
 #ifndef SELECT_ARG2_TYPE

-#define SELECT_ARG2_TYPE fd_set
+# define SELECT_ARG2_TYPE fd_set

 #endif
 
 /* One operating system uses a different type for the 4th argument of
 #endif
 
 /* One operating system uses a different type for the 4th argument of


@@ -439,7 +430,7 @@ dn_expand(). Its os.h file defines DN_EXPAND_ARG4_TYPE. For the rest, define a
 default here. */
 
 #ifndef DN_EXPAND_ARG4_TYPE
 default here. */
 
 #ifndef DN_EXPAND_ARG4_TYPE

-#define DN_EXPAND_ARG4_TYPE char *
+# define DN_EXPAND_ARG4_TYPE char *

 #endif
 
 /* One operating system defines a different type for the yield of inet_addr().
 #endif
 
 /* One operating system defines a different type for the yield of inet_addr().


@@ -450,7 +441,7 @@ changed, use a macro for the type, and define it here so that it is possible to
 use different values for specific OS if ever necessary. */
 
 #ifndef S_ADDR_TYPE
 use different values for specific OS if ever necessary. */
 
 #ifndef S_ADDR_TYPE

-#define S_ADDR_TYPE u_long
+# define S_ADDR_TYPE u_long

 #endif
 
 /* (At least) one operating system (Solaris) defines a different type for the
 #endif
 
 /* (At least) one operating system (Solaris) defines a different type for the


@@ -459,7 +450,7 @@ Its os.h file defines PAM_CONVERSE_ARG2_TYPE. For the rest, define a default
 here. */
 
 #ifndef PAM_CONVERSE_ARG2_TYPE
 here. */
 
 #ifndef PAM_CONVERSE_ARG2_TYPE

-#define PAM_CONVERSE_ARG2_TYPE const struct pam_message
+# define PAM_CONVERSE_ARG2_TYPE const struct pam_message

 #endif
 
 /* One operating system (SunOS4) defines getc, ungetc, feof, and ferror as
 #endif
 
 /* One operating system (SunOS4) defines getc, ungetc, feof, and ferror as


@@ -467,13 +458,13 @@ macros and not as functions. Exim needs them to be assignable functions. This
 flag gets set to cause this to be sorted out here. */
 
 #ifdef FUDGE_GETC_AND_FRIENDS
 flag gets set to cause this to be sorted out here. */
 
 #ifdef FUDGE_GETC_AND_FRIENDS

-#undef getc
+# undef getc

 extern int getc(FILE *);
 extern int getc(FILE *);

-#undef ungetc
+# undef ungetc

 extern int ungetc(int, FILE *);
 extern int ungetc(int, FILE *);

-#undef feof
+# undef feof

 extern int feof(FILE *);
 extern int feof(FILE *);

-#undef ferror
+# undef ferror

 extern int ferror(FILE *);
 #endif
 
 extern int ferror(FILE *);
 #endif
 


@@ -489,49 +480,51 @@ config.h, mytypes.h, and store.h, so we don't need to mention them explicitly.
 #include "macros.h"
 #include "dbstuff.h"
 #include "structs.h"
 #include "macros.h"
 #include "dbstuff.h"
 #include "structs.h"

+#include "blob.h"

 #include "globals.h"
 #include "globals.h"

+#include "hash.h"

 #include "functions.h"
 #include "dbfunctions.h"
 #include "osfunctions.h"
 
 #ifdef EXPERIMENTAL_BRIGHTMAIL
 #include "functions.h"
 #include "dbfunctions.h"
 #include "osfunctions.h"
 
 #ifdef EXPERIMENTAL_BRIGHTMAIL

-#include "bmi_spam.h"
+# include "bmi_spam.h"

 #endif
 #endif

-#ifdef EXPERIMENTAL_SPF
-#include "spf.h"
+#ifdef SUPPORT_SPF
+# include "spf.h"

 #endif
 #endif

-#ifdef EXPERIMENTAL_SRS
-#include "srs.h"
+#ifdef EXPERIMENTAL_SRS_ALT
+# include "srs.h"

 #endif
 #ifndef DISABLE_DKIM
 #endif
 #ifndef DISABLE_DKIM

-#include "dkim.h"
+# include "dkim.h"

 #endif
 #endif

-#ifdef EXPERIMENTAL_DMARC
-#include "dmarc.h"
-#include <opendmarc/dmarc.h>
+#ifdef SUPPORT_DMARC
+# include "dmarc.h"
+# include <opendmarc/dmarc.h>

 #endif
 
 /* The following stuff must follow the inclusion of config.h because it
 requires various things that are set therein. */
 
 #if HAVE_ICONV             /* Not all OS have this */
 #endif
 
 /* The following stuff must follow the inclusion of config.h because it
 requires various things that are set therein. */
 
 #if HAVE_ICONV             /* Not all OS have this */

-#include <iconv.h>
+# include <iconv.h>

 #endif
 
 #if defined(USE_READLINE) || defined(EXPAND_DLFUNC) || defined (LOOKUP_MODULE_DIR)
 #endif
 
 #if defined(USE_READLINE) || defined(EXPAND_DLFUNC) || defined (LOOKUP_MODULE_DIR)

-#include <dlfcn.h>
+# include <dlfcn.h>

 #endif
 
 #ifdef ENABLE_DISABLE_FSYNC
 #endif
 
 #ifdef ENABLE_DISABLE_FSYNC

-#define EXIMfsync(f) (disable_fsync? 0 : fsync(f))
+# define EXIMfsync(f) (disable_fsync? 0 : fsync(f))

 #else
 #else

-#define EXIMfsync(f) fsync(f)
+# define EXIMfsync(f) fsync(f)

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

-#define LOOKUP_LSEARCH yes
+# define LOOKUP_LSEARCH yes

 #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


@@ -546,11 +539,19 @@ union sockaddr_46 {
   struct sockaddr v0;
 };
 
   struct sockaddr v0;
 };
 

-/* If SUPPORT_TLS is not defined, ensure that USE_GNUTLS is also not defined
-so that if USE_GNUTLS *is* set, we can assume SUPPORT_TLS is also set. */
+/* If DISABLE_TLS is defined, ensure that USE_GNUTLS is not defined
+so that if USE_GNUTLS *is* set, we can assume DISABLE_TLS is not set.
+Ditto USE_OPENSSL.
+Likewise, OSCP, AUTH_TLS and CERTNAMES cannot be supported. */

 
 

-#ifndef SUPPORT_TLS
-#undef USE_GNUTLS
+#ifdef DISABLE_TLS
+# undef USE_OPENSSL
+# undef USE_GNUTLS
+# ifndef DISABLE_OCSP
+#  define DISABLE_OCSP
+# endif
+# undef EXPERIMENTAL_CERTNAMES
+# undef AUTH_TLS

 #endif
 
 /* If SPOOL_DIRECTORY, LOG_FILE_PATH or PID_FILE_PATH have not been defined,
 #endif
 
 /* If SPOOL_DIRECTORY, LOG_FILE_PATH or PID_FILE_PATH have not been defined,


@@ -574,21 +575,29 @@ which will end up in config.h if supplied in OS/Makefile-xxx. If it is not set,
 default to EDQUOT if it exists, otherwise ENOSPC. */
 
 #ifndef ERRNO_QUOTA
 default to EDQUOT if it exists, otherwise ENOSPC. */
 
 #ifndef ERRNO_QUOTA

-#ifdef  EDQUOT
-#define ERRNO_QUOTA EDQUOT
-#else
-#define ERRNO_QUOTA ENOSPC
+# ifdef  EDQUOT
+#  define ERRNO_QUOTA EDQUOT
+# else
+#  define ERRNO_QUOTA ENOSPC
+# endif

 #endif
 #endif

+
+/* DANE w/o DNSSEC is useless */
+#if defined(SUPPORT_DANE) && defined(DISABLE_DNSSEC)
+# error DANE support requires DNSSEC support

 #endif
 
 #endif
 

-/* Ensure PATH_MAX is defined */
+/* Some platforms (FreeBSD, OpenBSD, Solaris) do not seem to define this */

 
 

-#ifndef PATH_MAX
-  #ifdef MAXPATHLEN
-  #define PATH_MAX MAXPATHLEN
-  #else
-  #define PATH_MAX 1024
-  #endif
+#ifndef POLLRDHUP
+# define POLLRDHUP (POLLIN | POLLHUP)

 #endif
 
 #endif
 

+/* Some platforms (Darwin) have to define a larger limit on groups membership */
+
+#ifndef EXIM_GROUPLIST_SIZE
+# define EXIM_GROUPLIST_SIZE NGROUPS_MAX
+#endif
+
+#endif

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