Logging: for callout errors likely to be config problems, include the transport in...
[exim.git] / src / src / drtables.c
index b95d4fc952a0f1ba72d13e8bad0823c82d1bcbb3..cf7c4e0b1b98602d319452decec6ef683113298d 100644 (file)
@@ -1,15 +1,16 @@
-/* $Cambridge: exim/src/src/drtables.c,v 1.9 2007/09/28 12:21:57 tom Exp $ */
-
 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2007 */
+/* 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 */
 
 
 #include "exim.h"
 
+#include <string.h>
 
 /* This module contains tables that define the lookup methods and drivers
 that are actually included in the binary. Its contents are controlled by
@@ -17,644 +18,189 @@ various macros in config.h that ultimately come from Local/Makefile. They are
 all described in src/EDITME. */
 
 
-/* The OSF1 (Digital Unix) linker puts out a worrying warning if any sections
-contain no executable code. It says
-
-Warning: Linking some objects which contain exception information sections
-        and some which do not. This may cause fatal runtime exception handling
-        problems.
-
-As this may cause people to worry needlessly, include a dummy function here
-to stop the message from appearing. Make it call itself to stop picky compilers
-compilers complaining that it is unused, and put in a dummy argument to stop
-even pickier compilers complaining about infinite loops. */
-
-static void dummy(int x) { dummy(x-1); }
-
-
-/* Table of information about all possible lookup methods. The entries are
-always present, but the "open" and "find" functions are set to NULL for those
-that are not compiled into the binary. The "check" and "close" functions can
-be NULL for methods that don't need them. */
-
-#ifdef LOOKUP_CDB
-#include "lookups/cdb.h"
-#endif
-
-#ifdef LOOKUP_DBM
-#include "lookups/dbmdb.h"
-#endif
-
-#ifdef LOOKUP_DNSDB
-#include "lookups/dnsdb.h"
-#endif
-
-#ifdef LOOKUP_DSEARCH
-#include "lookups/dsearch.h"
-#endif
-
-#ifdef LOOKUP_IBASE
-#include "lookups/ibase.h"
-#endif
-
-#ifdef LOOKUP_LDAP
-#include "lookups/ldap.h"
-#endif
-
-#ifdef LOOKUP_LSEARCH
-#include "lookups/lsearch.h"
-#endif
-
-#ifdef LOOKUP_MYSQL
-#include "lookups/mysql.h"
-#endif
-
-#ifdef LOOKUP_NIS
-#include "lookups/nis.h"
-#endif
-
-#ifdef LOOKUP_NISPLUS
-#include "lookups/nisplus.h"
-#endif
-
-#ifdef LOOKUP_ORACLE
-#include "lookups/oracle.h"
-#endif
-
-#ifdef LOOKUP_PASSWD
-#include "lookups/passwd.h"
-#endif
-
-#ifdef LOOKUP_PGSQL
-#include "lookups/pgsql.h"
-#endif
-
-#ifdef EXPERIMENTAL_SPF
-#include "lookups/spf.h"
-#endif
-
-#ifdef LOOKUP_SQLITE
-#include "lookups/sqlite.h"
-#endif
-
-#ifdef LOOKUP_TESTDB
-#include "lookups/testdb.h"
-#endif
-
-#ifdef LOOKUP_WHOSON
-#include "lookups/whoson.h"
-#endif
-
-#ifdef EXPERIMENTAL_DKIM
-#include "lookups/dkim.h"
-#endif
-
-
-/* The second field in each item below is a set of bit flags:
-
-  lookup_querystyle     => this is a query-style lookup,
-                             else single-key (+ file) style
-  lookup_absfile        => an absolute file name is required,
-                             (for single-key style only)
-
-This list must be in alphabetical order of lookup name because it is
-searched by binary chop, having got rather large for the original linear
-searching. */
-
-lookup_info lookup_list[] = {
-
-/* cdb lookup in single file */
-
-  {
-  US"cdb",                       /* lookup name */
-  lookup_absfile,                /* uses absolute file name */
-#ifdef LOOKUP_CDB
-  cdb_open,                      /* open function */
-  cdb_check,                     /* check function */
-  cdb_find,                      /* find function */
-  cdb_close,                     /* close function */
-  NULL,                          /* no tidy function */
-  NULL                           /* no quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
-#endif
-  },
-
-/* DBM file lookup; called "dbm" because that is the name in Exim,
-but the code is called dbmdb to avoid name clashes. */
-
-  {
-  US"dbm",                       /* lookup name */
-  lookup_absfile,                /* uses absolute file name */
-#ifdef LOOKUP_DBM
-  dbmdb_open,                    /* open function */
-  dbmdb_check,                   /* check function */
-  dbmdb_find,                    /* find function */
-  dbmdb_close,                   /* close function */
-  NULL,                          /* no tidy function */
-  NULL                           /* no quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
-#endif
-  },
-
-/* This variant of DBM does not include the binary zero on the end
-of the key strings. */
-
-  {
-  US"dbmnz",                     /* lookup name */
-  lookup_absfile,                /* uses absolute file name */
-#ifdef LOOKUP_DBM
-  dbmdb_open,      /* sic */     /* open function */
-  dbmdb_check,     /* sic */     /* check function */
-  dbmnz_find,                    /* find function */
-  dbmdb_close,     /* sic */     /* close function */
-  NULL,                          /* no tidy function */
-  NULL                           /* no quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
-#endif
-  },
-
-/* DKIM lookups */
+lookup_info **lookup_list;
+int lookup_list_count = 0;
 
-  {
-  US"dkim",                      /* lookup name */
-  lookup_querystyle,             /* query style */
-#ifdef EXPERIMENTAL_DKIM
-  dkim_open,                     /* open function */
-  NULL,                          /* check function */
-  dkim_find,                     /* find function */
-  NULL,                          /* no close function */
-  NULL,                          /* no tidy function */
-  NULL                           /* no quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
-#endif
-  },
-
-/* Using DNS TXT records as a database */
+/* Table of information about all possible authentication mechanisms. All
+entries are always present if any mechanism is declared, but the functions are
+set to NULL for those that are not compiled into the binary. */
 
-  {
-  US"dnsdb",                     /* lookup name */
-  lookup_querystyle,             /* query style */
-#ifdef LOOKUP_DNSDB
-  dnsdb_open,                    /* open function */
-  NULL,                          /* check function */
-  dnsdb_find,                    /* find function */
-  NULL,                          /* no close function */
-  NULL,                          /* no tidy function */
-  NULL                           /* no quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
+#ifdef AUTH_CRAM_MD5
+#include "auths/cram_md5.h"
 #endif
-  },
 
-/* Search of files in a directory */
-
-  {
-  US"dsearch",                   /* lookup name */
-  lookup_absfile,                /* uses absolute file name */
-#ifdef LOOKUP_DSEARCH
-  dsearch_open,                  /* open function */
-  dsearch_check,                 /* check function */
-  dsearch_find,                  /* find function */
-  dsearch_close,                 /* close function */
-  NULL,                          /* no tidy function */
-  NULL                           /* no quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
+#ifdef AUTH_CYRUS_SASL
+#include "auths/cyrus_sasl.h"
 #endif
-  },
 
-/* Interbase lookup */
-
-  {
-  US"ibase",                     /* lookup name */
-  lookup_querystyle,             /* query-style lookup */
-#ifdef LOOKUP_IBASE
-  ibase_open,                    /* open function */
-  NULL,                          /* no check function */
-  ibase_find,                    /* find function */
-  NULL,                          /* no close function */
-  ibase_tidy,                    /* tidy function */
-  ibase_quote                    /* quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
+#ifdef AUTH_DOVECOT
+#include "auths/dovecot.h"
 #endif
-  },
 
-/* Linear search of single file with ip-addresses and networks; shares many
-functions with lsearch. */
-
-  {
-  US"iplsearch",                 /* lookup name */
-  lookup_absfile,                /* uses absolute file name */
-#ifdef LOOKUP_LSEARCH
-  lsearch_open,                  /* open function */
-  lsearch_check,                 /* check function */
-  iplsearch_find,                /* find function */
-  lsearch_close,                 /* close function */
-  NULL,                          /* no tidy function */
-  NULL                           /* no quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
+#ifdef AUTH_EXTERNAL
+#include "auths/external.h"
 #endif
-  },
-
-/* LDAP lookup, allowing data from only one entry to be returned */
 
-  {
-  US"ldap",                      /* lookup name */
-  lookup_querystyle,             /* query-style lookup */
-#ifdef LOOKUP_LDAP
-  eldap_open,                    /* open function */
-  NULL,                          /* check function */
-  eldap_find,                    /* find function */
-  NULL,                          /* no close function */
-  eldap_tidy,                    /* tidy function */
-  eldap_quote                    /* quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
+#ifdef AUTH_GSASL
+#include "auths/gsasl_exim.h"
 #endif
-  },
 
-/* LDAP lookup, allowing the DN from more one entry to be returned */
-
-  {
-  US"ldapdn",                     /* lookup name */
-  lookup_querystyle,             /* query-style lookup */
-#ifdef LOOKUP_LDAP
-  eldap_open,       /* sic */    /* open function */
-  NULL,                          /* check function */
-  eldapdn_find,                  /* find function */
-  NULL,                          /* no close function */
-  eldap_tidy,       /* sic */    /* tidy function */
-  eldap_quote       /* sic */    /* quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
+#ifdef AUTH_HEIMDAL_GSSAPI
+#include "auths/heimdal_gssapi.h"
 #endif
-  },
 
-/* LDAP lookup, allowing data from more than one entry to be returned */
-
-  {
-  US"ldapm",                     /* lookup name */
-  lookup_querystyle,             /* query-style lookup */
-#ifdef LOOKUP_LDAP
-  eldap_open,       /* sic */    /* open function */
-  NULL,                          /* check function */
-  eldapm_find,                   /* find function */
-  NULL,                          /* no close function */
-  eldap_tidy,       /* sic */    /* tidy function */
-  eldap_quote       /* sic */    /* quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
+#ifdef AUTH_PLAINTEXT
+#include "auths/plaintext.h"
 #endif
-  },
-
-/* Linear search of single file */
 
-  {
-  US"lsearch",                   /* lookup name */
-  lookup_absfile,                /* uses absolute file name */
-#ifdef LOOKUP_LSEARCH
-  lsearch_open,                  /* open function */
-  lsearch_check,                 /* check function */
-  lsearch_find,                  /* find function */
-  lsearch_close,                 /* close function */
-  NULL,                          /* no tidy function */
-  NULL                           /* no quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
+#ifdef AUTH_SPA
+#include "auths/spa.h"
 #endif
-  },
-
-/* MYSQL lookup */
 
-  {
-  US"mysql",                     /* lookup name */
-  lookup_querystyle,             /* query-style lookup */
-#ifdef LOOKUP_MYSQL
-  mysql_open,                    /* open function */
-  NULL,                          /* no check function */
-  mysql_find,                    /* find function */
-  NULL,                          /* no close function */
-  mysql_tidy,                    /* tidy function */
-  mysql_quote                    /* quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
+#ifdef AUTH_TLS
+#include "auths/tls.h"
 #endif
-  },
-
-/* NIS lookup, excluding trailing 0 from key */
 
-  {
-  US"nis",                       /* lookup name */
-  0,                             /* not abs file, not query style*/
-#ifdef LOOKUP_NIS
-  nis_open,                      /* open function */
-  NULL,                          /* check function */
-  nis_find,                      /* find function */
-  NULL,                          /* no close function */
-  NULL,                          /* no tidy function */
-  NULL                           /* no quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
-#endif
-  },
+auth_info auths_available[] = {
 
-/* NIS lookup, including trailing 0 in key */
+/* Checking by an expansion condition on plain text */
 
+#ifdef AUTH_CRAM_MD5
   {
-  US"nis0",                      /* lookup name */
-  0,                             /* not absfile, not query style */
-#ifdef LOOKUP_NIS
-  nis_open,    /* sic */         /* open function */
-  NULL,                          /* check function */
-  nis0_find,                     /* find function */
-  NULL,                          /* no close function */
-  NULL,                          /* no tidy function */
-  NULL                           /* no quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
-#endif
+  .driver_name =       US"cram_md5",                              /* lookup name */
+  .options =           auth_cram_md5_options,
+  .options_count =     &auth_cram_md5_options_count,
+  .options_block =     &auth_cram_md5_option_defaults,
+  .options_len =       sizeof(auth_cram_md5_options_block),
+  .init =              auth_cram_md5_init,
+  .servercode =                auth_cram_md5_server,
+  .clientcode =                auth_cram_md5_client,
+  .version_report =    NULL,
+  .macros_create =     NULL,
   },
-
-/* NIS+ lookup */
-
-  {
-  US"nisplus",                   /* lookup name */
-  lookup_querystyle,             /* query-style lookup */
-#ifdef LOOKUP_NISPLUS
-  nisplus_open,                  /* open function */
-  NULL,                          /* check function */
-  nisplus_find,                  /* find function */
-  NULL,                          /* no close function */
-  NULL,                          /* no tidy function */
-  nisplus_quote                  /* quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
 #endif
-  },
-
-/* Linear search of single file, with wildcarding but no pattern expansion.
-Shares many functions with lsearch. */
 
+#ifdef AUTH_CYRUS_SASL
   {
-  US"nwildlsearch",              /* lookup name */
-  lookup_absfile,                /* uses absolute file name */
-#ifdef LOOKUP_LSEARCH
-  lsearch_open,                  /* open function */
-  lsearch_check,                 /* check function */
-  nwildlsearch_find,             /* find function */
-  lsearch_close,                 /* close function */
-  NULL,                          /* no tidy function */
-  NULL                           /* no quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
-#endif
+  .driver_name =       US"cyrus_sasl",
+  .options =           auth_cyrus_sasl_options,
+  .options_count =     &auth_cyrus_sasl_options_count,
+  .options_block =     &auth_cyrus_sasl_option_defaults,
+  .options_len =       sizeof(auth_cyrus_sasl_options_block),
+  .init =              auth_cyrus_sasl_init,
+  .servercode =                auth_cyrus_sasl_server,
+  .clientcode =                NULL,
+  .version_report =    auth_cyrus_sasl_version_report,
+  .macros_create =     NULL,
   },
-
-/* Oracle lookup */
-
-  {
-  US"oracle",                    /* lookup name */
-  lookup_querystyle,             /* query-style lookup */
-#ifdef LOOKUP_ORACLE
-  oracle_open,                   /* open function */
-  NULL,                          /* check function */
-  oracle_find,                   /* find function */
-  NULL,                          /* no close function */
-  oracle_tidy,                   /* tidy function */
-  oracle_quote                   /* quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
 #endif
-  },
-
-/* passwd lookup */
 
+#ifdef AUTH_DOVECOT
   {
-  US"passwd",                    /* lookup name */
-  lookup_querystyle,             /* query-style lookup */
-#ifdef LOOKUP_PASSWD
-  passwd_open,                   /* open function */
-  NULL,                          /* no check function */
-  passwd_find,                   /* find function */
-  NULL,                          /* no close function */
-  NULL,                          /* no tidy function */
-  NULL                           /* no quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL   /* lookup not present */
-#endif
+  .driver_name =       US"dovecot",
+  .options =           auth_dovecot_options,
+  .options_count =     &auth_dovecot_options_count,
+  .options_block =     &auth_dovecot_option_defaults,
+  .options_len =       sizeof(auth_dovecot_options_block),
+  .init =              auth_dovecot_init,
+  .servercode =                auth_dovecot_server,
+  .clientcode =                NULL,
+  .version_report =    NULL,
+  .macros_create =     NULL,
   },
-
-/* PGSQL lookup */
-
-  {
-  US"pgsql",                     /* lookup name */
-  lookup_querystyle,             /* query-style lookup */
-#ifdef LOOKUP_PGSQL
-  pgsql_open,                    /* open function */
-  NULL,                          /* no check function */
-  pgsql_find,                    /* find function */
-  NULL,                          /* no close function */
-  pgsql_tidy,                    /* tidy function */
-  pgsql_quote                    /* quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL   /* lookup not present */
 #endif
-  },
-
-/* SPF lookup */
 
+#ifdef AUTH_EXTERNAL
   {
-  US"spf",                       /* lookup name */
-  0,                             /* not absfile, not query style */
-#ifdef EXPERIMENTAL_SPF
-  spf_open,                      /* open function */
-  NULL,                          /* no check function */
-  spf_find,                      /* find function */
-  spf_close,                     /* close function */
-  NULL,                          /* no tidy function */
-  NULL                           /* no quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
-#endif
+  .driver_name =       US"external",
+  .options =           auth_external_options,
+  .options_count =     &auth_external_options_count,
+  .options_block =     &auth_external_option_defaults,
+  .options_len =       sizeof(auth_external_options_block),
+  .init =              auth_external_init,
+  .servercode =                auth_external_server,
+  .clientcode =                auth_external_client,
+  .version_report =    NULL,
+  .macros_create =     NULL,
   },
-
-/* sqlite lookup */
-
-  {
-  US"sqlite",                    /* lookup name */
-  lookup_absfilequery,           /* query-style lookup, starts with file name */
-#ifdef LOOKUP_SQLITE
-  sqlite_open,                   /* open function */
-  NULL,                          /* no check function */
-  sqlite_find,                   /* find function */
-  sqlite_close,                  /* close function */
-  NULL,                          /* no tidy function */
-  sqlite_quote                   /* quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
 #endif
-  },
 
-/* Testdb lookup is for testing Exim, not useful for normal running.
-For that reason, we omit the entry entirely when not building it into
-the binary, so that attempts to use it give "unknown lookup type" instead
-of "lookup type not available". */
-
-#ifdef LOOKUP_TESTDB
+#ifdef AUTH_GSASL
   {
-  US"testdb",                    /* lookup name */
-  lookup_querystyle,             /* query-style lookup */
-  testdb_open,                   /* open function */
-  NULL,                          /* check function */
-  testdb_find,                   /* find function */
-  NULL,                          /* no close function */
-  NULL,                          /* no tidy function */
-  NULL                           /* no quoting function */
+  .driver_name =       US"gsasl",
+  .options =           auth_gsasl_options,
+  .options_count =     &auth_gsasl_options_count,
+  .options_block =     &auth_gsasl_option_defaults,
+  .options_len =       sizeof(auth_gsasl_options_block),
+  .init =              auth_gsasl_init,
+  .servercode =                auth_gsasl_server,
+  .clientcode =                auth_gsasl_client,
+  .version_report =    auth_gsasl_version_report,
+  .macros_create =     auth_gsasl_macros,
   },
 #endif
 
-/* "Whoson" lookup */
-
+#ifdef AUTH_HEIMDAL_GSSAPI
   {
-  US"whoson",                    /* lookup name */
-  lookup_querystyle,             /* query-style lookup */
-#ifdef LOOKUP_WHOSON
-  whoson_open,                   /* open function */
-  NULL,                          /* check function */
-  whoson_find,                   /* find function */
-  NULL,                          /* no close function */
-  NULL,                          /* no tidy function */
-  NULL                           /* no quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL   /* lookup not present */
-#endif
+  .driver_name =       US"heimdal_gssapi",
+  .options =           auth_heimdal_gssapi_options,
+  .options_count =     &auth_heimdal_gssapi_options_count,
+  .options_block =     &auth_heimdal_gssapi_option_defaults,
+  .options_len =       sizeof(auth_heimdal_gssapi_options_block),
+  .init =              auth_heimdal_gssapi_init,
+  .servercode =                auth_heimdal_gssapi_server,
+  .clientcode =                NULL,
+  .version_report =    auth_heimdal_gssapi_version_report,
+  .macros_create =     NULL,
   },
-
-/* Linear search of single file, with wildcarding and pattern expansion. Shares
-many functions with lsearch. */
-
-  {
-  US"wildlsearch",               /* lookup name */
-  lookup_absfile,                /* uses absolute file name */
-#ifdef LOOKUP_LSEARCH
-  lsearch_open,                  /* open function */
-  lsearch_check,                 /* check function */
-  wildlsearch_find,              /* find function */
-  lsearch_close,                 /* close function */
-  NULL,                          /* no tidy function */
-  NULL                           /* no quoting function */
-#else
-  NULL, NULL, NULL, NULL, NULL, NULL /* lookup not present */
-#endif
-  }
-};
-
-/* Number of entries in the list */
-
-int lookup_list_count = sizeof(lookup_list)/sizeof(lookup_info);
-
-
-
-/* Table of information about all possible authentication mechamisms. All
-entries are always present if any mechanism is declared, but the functions are
-set to NULL for those that are not compiled into the binary. */
-
-#ifdef AUTH_CRAM_MD5
-#include "auths/cram_md5.h"
-#endif
-
-#ifdef AUTH_CYRUS_SASL
-#include "auths/cyrus_sasl.h"
-#endif
-
-#ifdef AUTH_DOVECOT
-#include "auths/dovecot.h"
 #endif
 
 #ifdef AUTH_PLAINTEXT
-#include "auths/plaintext.h"
-#endif
-
-#ifdef AUTH_SPA
-#include "auths/spa.h"
-#endif
-
-auth_info auths_available[] = {
-
-/* Checking by an expansion condition on plain text */
-
-#ifdef AUTH_CRAM_MD5
-  {
-  US"cram_md5",                              /* lookup name */
-  auth_cram_md5_options,
-  &auth_cram_md5_options_count,
-  &auth_cram_md5_option_defaults,
-  sizeof(auth_cram_md5_options_block),
-  auth_cram_md5_init,                        /* init function */
-  auth_cram_md5_server,                      /* server function */
-  auth_cram_md5_client                       /* client function */
-  },
-#endif
-
-#ifdef AUTH_CYRUS_SASL
-  {
-  US"cyrus_sasl",           /* lookup name */
-  auth_cyrus_sasl_options,
-  &auth_cyrus_sasl_options_count,
-  &auth_cyrus_sasl_option_defaults,
-  sizeof(auth_cyrus_sasl_options_block),
-  auth_cyrus_sasl_init,                      /* init function */
-  auth_cyrus_sasl_server,                    /* server function */
-  NULL                                       /* client function */
-  },
-#endif
-
-#ifdef AUTH_DOVECOT
   {
-  US"dovecot",                                /* lookup name */
-  auth_dovecot_options,
-  &auth_dovecot_options_count,
-  &auth_dovecot_option_defaults,
-  sizeof(auth_dovecot_options_block),
-  auth_dovecot_init,                          /* init function */
-  auth_dovecot_server,                        /* server function */
-  NULL                                        /* client function */
+  .driver_name =       US"plaintext",
+  .options =           auth_plaintext_options,
+  .options_count =     &auth_plaintext_options_count,
+  .options_block =     &auth_plaintext_option_defaults,
+  .options_len =       sizeof(auth_plaintext_options_block),
+  .init =              auth_plaintext_init,
+  .servercode =                auth_plaintext_server,
+  .clientcode =                auth_plaintext_client,
+  .version_report =    NULL,
+  .macros_create =     NULL,
   },
 #endif
 
-#ifdef AUTH_PLAINTEXT
+#ifdef AUTH_SPA
   {
-  US"plaintext",                             /* lookup name */
-  auth_plaintext_options,
-  &auth_plaintext_options_count,
-  &auth_plaintext_option_defaults,
-  sizeof(auth_plaintext_options_block),
-  auth_plaintext_init,                       /* init function */
-  auth_plaintext_server,                     /* server function */
-  auth_plaintext_client                      /* client function */
+  .driver_name =       US"spa",
+  .options =           auth_spa_options,
+  .options_count =     &auth_spa_options_count,
+  .options_block =     &auth_spa_option_defaults,
+  .options_len =       sizeof(auth_spa_options_block),
+  .init =              auth_spa_init,
+  .servercode =                auth_spa_server,
+  .clientcode =                auth_spa_client,
+  .version_report =    NULL,
+  .macros_create =     NULL,
   },
 #endif
 
-#ifdef AUTH_SPA
+#ifdef AUTH_TLS
   {
-  US"spa",                                   /* lookup name */
-  auth_spa_options,
-  &auth_spa_options_count,
-  &auth_spa_option_defaults,
-  sizeof(auth_spa_options_block),
-  auth_spa_init,                             /* init function */
-  auth_spa_server,                           /* server function */
-  auth_spa_client                            /* client function */
+  .driver_name =       US"tls",
+  .options =           auth_tls_options,
+  .options_count =     &auth_tls_options_count,
+  .options_block =     &auth_tls_option_defaults,
+  .options_len =       sizeof(auth_tls_options_block),
+  .init =              auth_tls_init,
+  .servercode =                auth_tls_server,
+  .clientcode =                NULL,
+  .version_report =    NULL,
+  .macros_create =     NULL,
   },
 #endif
 
-{ US"", NULL, NULL, NULL, 0, NULL, NULL, NULL  }
+  { .driver_name = US"" }              /* end marker */
 };
 
 
@@ -709,6 +255,10 @@ exim binary. */
 #include "transports/pipe.h"
 #endif
 
+#ifdef EXPERIMENTAL_QUEUEFILE
+#include "transports/queuefile.h"
+#endif
+
 #ifdef TRANSPORT_SMTP
 #include "transports/smtp.h"
 #endif
@@ -719,96 +269,96 @@ exim binary. */
 router_info routers_available[] = {
 #ifdef ROUTER_ACCEPT
   {
-  US"accept",
-  accept_router_options,
-  &accept_router_options_count,
-  &accept_router_option_defaults,
-  sizeof(accept_router_options_block),
-  accept_router_init,
-  accept_router_entry,
-  NULL,     /* no tidyup entry */
-  ri_yestransport
+  .driver_name =       US"accept",
+  .options =           accept_router_options,
+  .options_count =     &accept_router_options_count,
+  .options_block =     &accept_router_option_defaults,
+  .options_len =       sizeof(accept_router_options_block),
+  .init =              accept_router_init,
+  .code =              accept_router_entry,
+  .tidyup =            NULL,     /* no tidyup entry */
+  .ri_flags =          ri_yestransport
   },
 #endif
 #ifdef ROUTER_DNSLOOKUP
   {
-  US"dnslookup",
-  dnslookup_router_options,
-  &dnslookup_router_options_count,
-  &dnslookup_router_option_defaults,
-  sizeof(dnslookup_router_options_block),
-  dnslookup_router_init,
-  dnslookup_router_entry,
-  NULL,     /* no tidyup entry */
-  ri_yestransport
+  .driver_name =       US"dnslookup",
+  .options =           dnslookup_router_options,
+  .options_count =     &dnslookup_router_options_count,
+  .options_block =     &dnslookup_router_option_defaults,
+  .options_len =       sizeof(dnslookup_router_options_block),
+  .init =              dnslookup_router_init,
+  .code =              dnslookup_router_entry,
+  .tidyup =            NULL,     /* no tidyup entry */
+  .ri_flags =          ri_yestransport
   },
 #endif
 #ifdef ROUTER_IPLITERAL
   {
-  US"ipliteral",
-  ipliteral_router_options,
-  &ipliteral_router_options_count,
-  &ipliteral_router_option_defaults,
-  sizeof(ipliteral_router_options_block),
-  ipliteral_router_init,
-  ipliteral_router_entry,
-  NULL,     /* no tidyup entry */
-  ri_yestransport
+  .driver_name =       US"ipliteral",
+  .options =           ipliteral_router_options,
+  .options_count =     &ipliteral_router_options_count,
+  .options_block =     &ipliteral_router_option_defaults,
+  .options_len =       sizeof(ipliteral_router_options_block),
+  .init =              ipliteral_router_init,
+  .code =              ipliteral_router_entry,
+  .tidyup =            NULL,     /* no tidyup entry */
+  .ri_flags =          ri_yestransport
   },
 #endif
 #ifdef ROUTER_IPLOOKUP
   {
-  US"iplookup",
-  iplookup_router_options,
-  &iplookup_router_options_count,
-  &iplookup_router_option_defaults,
-  sizeof(iplookup_router_options_block),
-  iplookup_router_init,
-  iplookup_router_entry,
-  NULL,     /* no tidyup entry */
-  ri_notransport
+  .driver_name =       US"iplookup",
+  .options =           iplookup_router_options,
+  .options_count =     &iplookup_router_options_count,
+  .options_block =     &iplookup_router_option_defaults,
+  .options_len =       sizeof(iplookup_router_options_block),
+  .init =              iplookup_router_init,
+  .code =              iplookup_router_entry,
+  .tidyup =            NULL,     /* no tidyup entry */
+  .ri_flags =          ri_notransport
   },
 #endif
 #ifdef ROUTER_MANUALROUTE
   {
-  US"manualroute",
-  manualroute_router_options,
-  &manualroute_router_options_count,
-  &manualroute_router_option_defaults,
-  sizeof(manualroute_router_options_block),
-  manualroute_router_init,
-  manualroute_router_entry,
-  NULL,     /* no tidyup entry */
-  0
+  .driver_name =       US"manualroute",
+  .options =           manualroute_router_options,
+  .options_count =     &manualroute_router_options_count,
+  .options_block =     &manualroute_router_option_defaults,
+  .options_len =       sizeof(manualroute_router_options_block),
+  .init =              manualroute_router_init,
+  .code =              manualroute_router_entry,
+  .tidyup =            NULL,     /* no tidyup entry */
+  .ri_flags =          0
   },
 #endif
 #ifdef ROUTER_QUERYPROGRAM
   {
-  US"queryprogram",
-  queryprogram_router_options,
-  &queryprogram_router_options_count,
-  &queryprogram_router_option_defaults,
-  sizeof(queryprogram_router_options_block),
-  queryprogram_router_init,
-  queryprogram_router_entry,
-  NULL,     /* no tidyup entry */
-  0
+  .driver_name =       US"queryprogram",
+  .options =           queryprogram_router_options,
+  .options_count =     &queryprogram_router_options_count,
+  .options_block =     &queryprogram_router_option_defaults,
+  .options_len =       sizeof(queryprogram_router_options_block),
+  .init =              queryprogram_router_init,
+  .code =              queryprogram_router_entry,
+  .tidyup =            NULL,     /* no tidyup entry */
+  .ri_flags =          0
   },
 #endif
 #ifdef ROUTER_REDIRECT
   {
-  US"redirect",
-  redirect_router_options,
-  &redirect_router_options_count,
-  &redirect_router_option_defaults,
-  sizeof(redirect_router_options_block),
-  redirect_router_init,
-  redirect_router_entry,
-  NULL,     /* no tidyup entry */
-  ri_notransport
+  .driver_name =       US"redirect",
+  .options =           redirect_router_options,
+  .options_count =     &redirect_router_options_count,
+  .options_block =     &redirect_router_option_defaults,
+  .options_len =       sizeof(redirect_router_options_block),
+  .init =              redirect_router_init,
+  .code =              redirect_router_entry,
+  .tidyup =            NULL,     /* no tidyup entry */
+  .ri_flags =          ri_notransport
   },
 #endif
-{ US"", NULL, NULL, NULL, 0, NULL, NULL, NULL, 0 }
+  { US"" }
 };
 
 
@@ -816,75 +366,454 @@ router_info routers_available[] = {
 transport_info transports_available[] = {
 #ifdef TRANSPORT_APPENDFILE
   {
-  US"appendfile",                              /* driver name */
-  appendfile_transport_options,                /* local options table */
-  &appendfile_transport_options_count,         /* number of entries */
-  &appendfile_transport_option_defaults,       /* private options defaults */
-  sizeof(appendfile_transport_options_block),  /* size of private block */
-  appendfile_transport_init,                   /* init entry point */
-  appendfile_transport_entry,                  /* main entry point */
-  NULL,                                        /* no tidyup entry */
-  NULL,                                        /* no closedown entry */
-  TRUE,                                        /* local flag */
+  .driver_name =       US"appendfile",
+  .options =           appendfile_transport_options,
+  .options_count =     &appendfile_transport_options_count,
+  .options_block =     &appendfile_transport_option_defaults,       /* private options defaults */
+  .options_len =       sizeof(appendfile_transport_options_block),
+  .init =              appendfile_transport_init,
+  .code =              appendfile_transport_entry,
+  .tidyup =            NULL,
+  .closedown =         NULL,
+  .local =             TRUE
   },
 #endif
 #ifdef TRANSPORT_AUTOREPLY
   {
-  US"autoreply",                               /* driver name */
-  autoreply_transport_options,                 /* local options table */
-  &autoreply_transport_options_count,          /* number of entries */
-  &autoreply_transport_option_defaults,        /* private options defaults */
-  sizeof(autoreply_transport_options_block),   /* size of private block */
-  autoreply_transport_init,                    /* init entry point */
-  autoreply_transport_entry,                   /* main entry point */
-  NULL,                                        /* no tidyup entry */
-  NULL,                                        /* no closedown entry */
-  TRUE                                         /* local flag */
+  .driver_name =       US"autoreply",
+  .options =           autoreply_transport_options,
+  .options_count =     &autoreply_transport_options_count,
+  .options_block =     &autoreply_transport_option_defaults,
+  .options_len =       sizeof(autoreply_transport_options_block),
+  .init =              autoreply_transport_init,
+  .code =              autoreply_transport_entry,
+  .tidyup =            NULL,
+  .closedown =         NULL,
+  .local =             TRUE
   },
 #endif
 #ifdef TRANSPORT_LMTP
   {
-  US"lmtp",                                    /* driver name */
-  lmtp_transport_options,                      /* local options table */
-  &lmtp_transport_options_count,               /* number of entries */
-  &lmtp_transport_option_defaults,             /* private options defaults */
-  sizeof(lmtp_transport_options_block),        /* size of private block */
-  lmtp_transport_init,                         /* init entry point */
-  lmtp_transport_entry,                        /* main entry point */
-  NULL,                                        /* no tidyup entry */
-  NULL,                                        /* no closedown entry */
-  TRUE                                         /* local flag */
+  .driver_name =       US"lmtp",
+  .options =           lmtp_transport_options,
+  .options_count =     &lmtp_transport_options_count,
+  .options_block =     &lmtp_transport_option_defaults,
+  .options_len =       sizeof(lmtp_transport_options_block),
+  .init =              lmtp_transport_init,
+  .code =              lmtp_transport_entry,
+  .tidyup =            NULL,
+  .closedown =         NULL,
+  .local =             TRUE
   },
 #endif
 #ifdef TRANSPORT_PIPE
   {
-  US"pipe",                                    /* driver name */
-  pipe_transport_options,                      /* local options table */
-  &pipe_transport_options_count,               /* number of entries */
-  &pipe_transport_option_defaults,             /* private options defaults */
-  sizeof(pipe_transport_options_block),        /* size of private block */
-  pipe_transport_init,                         /* init entry point */
-  pipe_transport_entry,                        /* main entry point */
-  NULL,                                        /* no tidyup entry */
-  NULL,                                        /* no closedown entry */
-  TRUE                                         /* local flag */
+  .driver_name =       US"pipe",
+  .options =           pipe_transport_options,
+  .options_count =     &pipe_transport_options_count,
+  .options_block =     &pipe_transport_option_defaults,
+  .options_len =       sizeof(pipe_transport_options_block),
+  .init =              pipe_transport_init,
+  .code =              pipe_transport_entry,
+  .tidyup =            NULL,
+  .closedown =         NULL,
+  .local =             TRUE
+  },
+#endif
+#ifdef EXPERIMENTAL_QUEUEFILE
+  {
+  .driver_name =       US"queuefile",
+  .options =           queuefile_transport_options,
+  .options_count =     &queuefile_transport_options_count,
+  .options_block =     &queuefile_transport_option_defaults,
+  .options_len =       sizeof(queuefile_transport_options_block),
+  .init =              queuefile_transport_init,
+  .code =              queuefile_transport_entry,
+  .tidyup =            NULL,
+  .closedown =         NULL,
+  .local =             TRUE
   },
 #endif
 #ifdef TRANSPORT_SMTP
   {
-  US"smtp",                                    /* driver name */
-  smtp_transport_options,                      /* local options table */
-  &smtp_transport_options_count,               /* number of entries */
-  &smtp_transport_option_defaults,             /* private options defaults */
-  sizeof(smtp_transport_options_block),        /* size of private block */
-  smtp_transport_init,                         /* init entry point */
-  smtp_transport_entry,                        /* main entry point */
-  NULL,                                        /* no tidyup entry */
-  smtp_transport_closedown,                    /* close down passed channel */
-  FALSE                                        /* local flag */
+  .driver_name =       US"smtp",
+  .options =           smtp_transport_options,
+  .options_count =     &smtp_transport_options_count,
+  .options_block =     &smtp_transport_option_defaults,
+  .options_len =       sizeof(smtp_transport_options_block),
+  .init =              smtp_transport_init,
+  .code =              smtp_transport_entry,
+  .tidyup =            NULL,
+  .closedown =         smtp_transport_closedown,
+  .local =             FALSE
   },
 #endif
-{ US"", NULL, NULL, NULL, 0, NULL, NULL, NULL, NULL, FALSE }
+  { US"" }
+};
+
+#ifndef MACRO_PREDEF
+
+gstring *
+auth_show_supported(gstring * g)
+{
+g = string_cat(g, US"Authenticators:");
+for (auth_info * ai = auths_available; ai->driver_name[0]; ai++)
+               g = string_fmt_append(g, " %s", ai->driver_name);
+return string_cat(g, US"\n");
+}
+
+gstring *
+route_show_supported(gstring * g)
+{
+g = string_cat(g, US"Routers:");
+for (router_info * rr = routers_available; rr->driver_name[0]; rr++)
+               g = string_fmt_append(g, " %s", rr->driver_name);
+return string_cat(g, US"\n");
+}
+
+gstring *
+transport_show_supported(gstring * g)
+{
+g = string_cat(g, US"Transports:");
+#ifdef TRANSPORT_APPENDFILE
+  g = string_cat(g, US" appendfile");
+  #ifdef SUPPORT_MAILDIR
+    g = string_cat(g, US"/maildir");   /* damn these subclasses */
+  #endif
+  #ifdef SUPPORT_MAILSTORE
+    g = string_cat(g, US"/mailstore");
+  #endif
+  #ifdef SUPPORT_MBX
+    g = string_cat(g, US"/mbx");
+  #endif
+#endif
+#ifdef TRANSPORT_AUTOREPLY
+  g = string_cat(g, US" autoreply");
+#endif
+#ifdef TRANSPORT_LMTP
+  g = string_cat(g, US" lmtp");
+#endif
+#ifdef TRANSPORT_PIPE
+  g = string_cat(g, US" pipe");
+#endif
+#ifdef EXPERIMENTAL_QUEUEFILE
+  g = string_cat(g, US" queuefile");
+#endif
+#ifdef TRANSPORT_SMTP
+  g = string_cat(g, US" smtp");
+#endif
+return string_cat(g, US"\n");
+}
+
+
+
+struct lookupmodulestr
+{
+  void *dl;
+  struct lookup_module_info *info;
+  struct lookupmodulestr *next;
 };
 
+static struct lookupmodulestr *lookupmodules = NULL;
+
+static void
+addlookupmodule(void *dl, struct lookup_module_info *info)
+{
+struct lookupmodulestr *p = store_get(sizeof(struct lookupmodulestr), GET_UNTAINTED);
+
+p->dl = dl;
+p->info = info;
+p->next = lookupmodules;
+lookupmodules = p;
+lookup_list_count += info->lookupcount;
+}
+
+/* only valid after lookup_list and lookup_list_count are assigned */
+static void
+add_lookup_to_list(lookup_info *info)
+{
+/* need to add the lookup to lookup_list, sorted */
+int pos = 0;
+
+/* strategy is to go through the list until we find
+either an empty spot or a name that is higher.
+this can't fail because we have enough space. */
+
+while (lookup_list[pos] && (Ustrcmp(lookup_list[pos]->name, info->name) <= 0))
+  pos++;
+
+if (lookup_list[pos])
+  {
+  /* need to insert it, so move all the other items up
+  (last slot is still empty, of course) */
+
+  memmove(&lookup_list[pos+1], &lookup_list[pos],
+         sizeof(lookup_info *) * (lookup_list_count-pos-1));
+  }
+lookup_list[pos] = info;
+}
+
+
+/* These need to be at file level for old versions of gcc (2.95.2 reported),
+ * which give parse errors on an extern in function scope.  Each entry needs
+ * to also be invoked in init_lookup_list() below  */
+
+#if defined(LOOKUP_CDB) && LOOKUP_CDB!=2
+extern lookup_module_info cdb_lookup_module_info;
+#endif
+#if defined(LOOKUP_DBM) && LOOKUP_DBM!=2
+extern lookup_module_info dbmdb_lookup_module_info;
+#endif
+#if defined(LOOKUP_DNSDB) && LOOKUP_DNSDB!=2
+extern lookup_module_info dnsdb_lookup_module_info;
+#endif
+#if defined(LOOKUP_DSEARCH) && LOOKUP_DSEARCH!=2
+extern lookup_module_info dsearch_lookup_module_info;
+#endif
+#if defined(LOOKUP_IBASE) && LOOKUP_IBASE!=2
+extern lookup_module_info ibase_lookup_module_info;
+#endif
+#if defined(LOOKUP_JSON)
+extern lookup_module_info json_lookup_module_info;
+#endif
+#if defined(LOOKUP_LDAP)
+extern lookup_module_info ldap_lookup_module_info;
+#endif
+#if defined(LOOKUP_LSEARCH) && LOOKUP_LSEARCH!=2
+extern lookup_module_info lsearch_lookup_module_info;
+#endif
+#if defined(LOOKUP_MYSQL) && LOOKUP_MYSQL!=2
+extern lookup_module_info mysql_lookup_module_info;
+#endif
+#if defined(LOOKUP_NIS) && LOOKUP_NIS!=2
+extern lookup_module_info nis_lookup_module_info;
+#endif
+#if defined(LOOKUP_NISPLUS) && LOOKUP_NISPLUS!=2
+extern lookup_module_info nisplus_lookup_module_info;
+#endif
+#if defined(LOOKUP_ORACLE) && LOOKUP_ORACLE!=2
+extern lookup_module_info oracle_lookup_module_info;
+#endif
+#if defined(LOOKUP_PASSWD) && LOOKUP_PASSWD!=2
+extern lookup_module_info passwd_lookup_module_info;
+#endif
+#if defined(LOOKUP_PGSQL) && LOOKUP_PGSQL!=2
+extern lookup_module_info pgsql_lookup_module_info;
+#endif
+#if defined(LOOKUP_REDIS) && LOOKUP_REDIS!=2
+extern lookup_module_info redis_lookup_module_info;
+#endif
+#if defined(LOOKUP_LMDB)
+extern lookup_module_info lmdb_lookup_module_info;
+#endif
+#if defined(SUPPORT_SPF)
+extern lookup_module_info spf_lookup_module_info;
+#endif
+#if defined(LOOKUP_SQLITE) && LOOKUP_SQLITE!=2
+extern lookup_module_info sqlite_lookup_module_info;
+#endif
+#if defined(LOOKUP_TESTDB) && LOOKUP_TESTDB!=2
+extern lookup_module_info testdb_lookup_module_info;
+#endif
+#if defined(LOOKUP_WHOSON) && LOOKUP_WHOSON!=2
+extern lookup_module_info whoson_lookup_module_info;
+#endif
+
+extern lookup_module_info readsock_lookup_module_info;
+
+
+void
+init_lookup_list(void)
+{
+#ifdef LOOKUP_MODULE_DIR
+DIR *dd;
+struct dirent *ent;
+int countmodules = 0;
+int moduleerrors = 0;
+#endif
+static BOOL lookup_list_init_done = FALSE;
+rmark reset_point;
+
+if (lookup_list_init_done)
+  return;
+reset_point = store_mark();
+lookup_list_init_done = TRUE;
+
+#if defined(LOOKUP_CDB) && LOOKUP_CDB!=2
+addlookupmodule(NULL, &cdb_lookup_module_info);
+#endif
+
+#if defined(LOOKUP_DBM) && LOOKUP_DBM!=2
+addlookupmodule(NULL, &dbmdb_lookup_module_info);
+#endif
+
+#if defined(LOOKUP_DNSDB) && LOOKUP_DNSDB!=2
+addlookupmodule(NULL, &dnsdb_lookup_module_info);
+#endif
+
+#if defined(LOOKUP_DSEARCH) && LOOKUP_DSEARCH!=2
+addlookupmodule(NULL, &dsearch_lookup_module_info);
+#endif
+
+#if defined(LOOKUP_IBASE) && LOOKUP_IBASE!=2
+addlookupmodule(NULL, &ibase_lookup_module_info);
+#endif
+
+#ifdef LOOKUP_LDAP
+addlookupmodule(NULL, &ldap_lookup_module_info);
+#endif
+
+#ifdef LOOKUP_JSON
+addlookupmodule(NULL, &json_lookup_module_info);
+#endif
+
+#if defined(LOOKUP_LSEARCH) && LOOKUP_LSEARCH!=2
+addlookupmodule(NULL, &lsearch_lookup_module_info);
+#endif
+
+#if defined(LOOKUP_MYSQL) && LOOKUP_MYSQL!=2
+addlookupmodule(NULL, &mysql_lookup_module_info);
+#endif
+
+#if defined(LOOKUP_NIS) && LOOKUP_NIS!=2
+addlookupmodule(NULL, &nis_lookup_module_info);
+#endif
+
+#if defined(LOOKUP_NISPLUS) && LOOKUP_NISPLUS!=2
+addlookupmodule(NULL, &nisplus_lookup_module_info);
+#endif
+
+#if defined(LOOKUP_ORACLE) && LOOKUP_ORACLE!=2
+addlookupmodule(NULL, &oracle_lookup_module_info);
+#endif
+
+#if defined(LOOKUP_PASSWD) && LOOKUP_PASSWD!=2
+addlookupmodule(NULL, &passwd_lookup_module_info);
+#endif
+
+#if defined(LOOKUP_PGSQL) && LOOKUP_PGSQL!=2
+addlookupmodule(NULL, &pgsql_lookup_module_info);
+#endif
+
+#if defined(LOOKUP_REDIS) && LOOKUP_REDIS!=2
+addlookupmodule(NULL, &redis_lookup_module_info);
+#endif
+
+#ifdef LOOKUP_LMDB
+addlookupmodule(NULL, &lmdb_lookup_module_info);
+#endif
+
+#ifdef SUPPORT_SPF
+addlookupmodule(NULL, &spf_lookup_module_info);
+#endif
+
+#if defined(LOOKUP_SQLITE) && LOOKUP_SQLITE!=2
+addlookupmodule(NULL, &sqlite_lookup_module_info);
+#endif
+
+#if defined(LOOKUP_TESTDB) && LOOKUP_TESTDB!=2
+addlookupmodule(NULL, &testdb_lookup_module_info);
+#endif
+
+#if defined(LOOKUP_WHOSON) && LOOKUP_WHOSON!=2
+addlookupmodule(NULL, &whoson_lookup_module_info);
+#endif
+
+addlookupmodule(NULL, &readsock_lookup_module_info);
+
+#ifdef LOOKUP_MODULE_DIR
+if (!(dd = exim_opendir(LOOKUP_MODULE_DIR)))
+  {
+  DEBUG(D_lookup) debug_printf("Couldn't open %s: not loading lookup modules\n", LOOKUP_MODULE_DIR);
+  log_write(0, LOG_MAIN, "Couldn't open %s: not loading lookup modules\n", LOOKUP_MODULE_DIR);
+  }
+else
+  {
+  const pcre2_code * regex_islookupmod = regex_must_compile(
+    US"\\." DYNLIB_FN_EXT "$", MCS_NOFLAGS, TRUE);
+
+  DEBUG(D_lookup) debug_printf("Loading lookup modules from %s\n", LOOKUP_MODULE_DIR);
+  while ((ent = readdir(dd)))
+    {
+    char * name = ent->d_name;
+    int len = (int)strlen(name);
+    if (regex_match(regex_islookupmod, US name, len, NULL))
+      {
+      int pathnamelen = len + (int)strlen(LOOKUP_MODULE_DIR) + 2;
+      void *dl;
+      struct lookup_module_info *info;
+      const char *errormsg;
+
+      /* SRH: am I being paranoid here or what? */
+      if (pathnamelen > big_buffer_size)
+       {
+       fprintf(stderr, "Loading lookup modules: %s/%s: name too long\n", LOOKUP_MODULE_DIR, name);
+       log_write(0, LOG_MAIN|LOG_PANIC, "%s/%s: name too long\n", LOOKUP_MODULE_DIR, name);
+       continue;
+       }
+
+      /* SRH: snprintf here? */
+      sprintf(CS big_buffer, "%s/%s", LOOKUP_MODULE_DIR, name);
+
+      if (!(dl = dlopen(CS big_buffer, RTLD_NOW)))
+       {
+       errormsg = dlerror();
+       fprintf(stderr, "Error loading %s: %s\n", name, errormsg);
+       log_write(0, LOG_MAIN|LOG_PANIC, "Error loading lookup module %s: %s\n", name, errormsg);
+       moduleerrors++;
+       continue;
+       }
+
+      /* FreeBSD nsdispatch() can trigger dlerror() errors about
+      _nss_cache_cycle_prevention_function; we need to clear the dlerror()
+      state before calling dlsym(), so that any error afterwards only comes
+      from dlsym().  */
+
+      errormsg = dlerror();
+
+      info = (struct lookup_module_info*) dlsym(dl, "_lookup_module_info");
+      if ((errormsg = dlerror()))
+       {
+       fprintf(stderr, "%s does not appear to be a lookup module (%s)\n", name, errormsg);
+       log_write(0, LOG_MAIN|LOG_PANIC, "%s does not appear to be a lookup module (%s)\n", name, errormsg);
+       dlclose(dl);
+       moduleerrors++;
+       continue;
+       }
+      if (info->magic != LOOKUP_MODULE_INFO_MAGIC)
+       {
+       fprintf(stderr, "Lookup module %s is not compatible with this version of Exim\n", name);
+       log_write(0, LOG_MAIN|LOG_PANIC, "Lookup module %s is not compatible with this version of Exim\n", name);
+       dlclose(dl);
+       moduleerrors++;
+       continue;
+       }
+
+      addlookupmodule(dl, info);
+      DEBUG(D_lookup) debug_printf("Loaded \"%s\" (%d lookup types)\n", name, info->lookupcount);
+      countmodules++;
+      }
+    }
+  store_free((void*)regex_islookupmod);
+  closedir(dd);
+  }
+
+DEBUG(D_lookup) debug_printf("Loaded %d lookup modules\n", countmodules);
+#endif
+
+DEBUG(D_lookup) debug_printf("Total %d lookups\n", lookup_list_count);
+
+lookup_list = store_malloc(sizeof(lookup_info *) * lookup_list_count);
+memset(lookup_list, 0, sizeof(lookup_info *) * lookup_list_count);
+
+/* now add all lookups to the real list */
+for (struct lookupmodulestr * p = lookupmodules; p; p = p->next)
+  for (int j = 0; j < p->info->lookupcount; j++)
+    add_lookup_to_list(p->info->lookups[j]);
+store_reset(reset_point);
+/* just to be sure */
+lookupmodules = NULL;
+}
+
+#endif /*!MACRO_PREDEF*/
 /* End of drtables.c */