GnuTLS: tls_write(): wait after uncorking the session
[users/heiko/exim.git] / src / src / drtables.c
index d07123453db79931e029c7744a87a3dc572c09f5..b1380df12fb13874edefb77d60bf86254aeb8c0b 100644 (file)
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2016 */
+/* Copyright (c) University of Cambridge 1995 - 2018 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 
@@ -19,9 +19,7 @@ all described in src/EDITME. */
 lookup_info **lookup_list;
 int lookup_list_count = 0;
 
-static int lookup_list_init_done = 0;
-
-/* Table of information about all possible authentication mechamisms. All
+/* 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. */
 
@@ -37,6 +35,10 @@ set to NULL for those that are not compiled into the binary. */
 #include "auths/dovecot.h"
 #endif
 
+#ifdef AUTH_EXTERNAL
+#include "auths/external.h"
+#endif
+
 #ifdef AUTH_GSASL
 #include "auths/gsasl_exim.h"
 #endif
@@ -63,119 +65,151 @@ auth_info auths_available[] = {
 
 #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 */
-  NULL                                       /* diagnostic function */
+  .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,
   },
 #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 */
-  auth_cyrus_sasl_version_report             /* diagnostic function */
+  .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,
   },
 #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 */
-  NULL                                        /* diagnostic function */
+  .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,
+  },
+#endif
+
+#ifdef AUTH_EXTERNAL
+  {
+  .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,
   },
 #endif
 
 #ifdef AUTH_GSASL
   {
-  US"gsasl",                                  /* lookup name */
-  auth_gsasl_options,
-  &auth_gsasl_options_count,
-  &auth_gsasl_option_defaults,
-  sizeof(auth_gsasl_options_block),
-  auth_gsasl_init,                            /* init function */
-  auth_gsasl_server,                          /* server function */
-  NULL,                                       /* client function */
-  auth_gsasl_version_report                   /* diagnostic 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
 
 #ifdef AUTH_HEIMDAL_GSSAPI
   {
-  US"heimdal_gssapi",                         /* lookup name */
-  auth_heimdal_gssapi_options,
-  &auth_heimdal_gssapi_options_count,
-  &auth_heimdal_gssapi_option_defaults,
-  sizeof(auth_heimdal_gssapi_options_block),
-  auth_heimdal_gssapi_init,                   /* init function */
-  auth_heimdal_gssapi_server,                 /* server function */
-  NULL,                                       /* client function */
-  auth_heimdal_gssapi_version_report          /* diagnostic function */
+  .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,
   },
 #endif
 
 #ifdef AUTH_PLAINTEXT
   {
-  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 */
-  NULL                                       /* diagnostic 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_SPA
   {
-  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 */
-  NULL                                       /* diagnostic 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_TLS
   {
-  US"tls",                                   /* lookup name */
-  auth_tls_options,
-  &auth_tls_options_count,
-  &auth_tls_option_defaults,
-  sizeof(auth_tls_options_block),
-  auth_tls_init,                             /* init function */
-  auth_tls_server,                           /* server function */
-  NULL,                                      /* client function */
-  NULL                                       /* diagnostic 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, NULL  }
+  { .driver_name = US"" }              /* end marker */
 };
 
+void
+auth_show_supported(FILE * f)
+{
+fprintf(f, "Authenticators:");
+for (auth_info * ai = auths_available; ai->driver_name[0]; ai++)
+               fprintf(f, " %s", ai->driver_name);
+fprintf(f, "\n");
+}
+
 
 /* Tables of information about which routers and transports are included in the
 exim binary. */
@@ -228,6 +262,10 @@ exim binary. */
 #include "transports/pipe.h"
 #endif
 
+#ifdef EXPERIMENTAL_QUEUEFILE
+#include "transports/queuefile.h"
+#endif
+
 #ifdef TRANSPORT_SMTP
 #include "transports/smtp.h"
 #endif
@@ -238,174 +276,236 @@ 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"" }
 };
 
 
+void
+route_show_supported(FILE * f)
+{
+fprintf(f, "Routers:");
+for (router_info * rr = routers_available; rr->driver_name[0]; rr++)
+               fprintf(f, " %s", rr->driver_name);
+fprintf(f, "\n");
+}
+
+
+
 
 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"" }
 };
 
+void
+transport_show_supported(FILE * f)
+{
+fprintf(f, "Transports:");
+#ifdef TRANSPORT_APPENDFILE
+  fprintf(f, " appendfile");
+  #ifdef SUPPORT_MAILDIR
+    fprintf(f, "/maildir");    /* damn these subclasses */
+  #endif
+  #ifdef SUPPORT_MAILSTORE
+    fprintf(f, "/mailstore");
+  #endif
+  #ifdef SUPPORT_MBX
+    fprintf(f, "/mbx");
+  #endif
+#endif
+#ifdef TRANSPORT_AUTOREPLY
+  fprintf(f, " autoreply");
+#endif
+#ifdef TRANSPORT_LMTP
+  fprintf(f, " lmtp");
+#endif
+#ifdef TRANSPORT_PIPE
+  fprintf(f, " pipe");
+#endif
+#ifdef EXPERIMENTAL_QUEUEFILE
+  fprintf(f, " queuefile");
+#endif
+#ifdef TRANSPORT_SMTP
+  fprintf(f, " smtp");
+#endif
+fprintf(f, "\n");
+}
+
+
+#ifndef MACRO_PREDEF
+
 struct lookupmodulestr
 {
   void *dl;
@@ -418,7 +518,7 @@ static struct lookupmodulestr *lookupmodules = NULL;
 static void
 addlookupmodule(void *dl, struct lookup_module_info *info)
 {
-struct lookupmodulestr *p = store_malloc(sizeof(struct lookupmodulestr));
+struct lookupmodulestr *p = store_get(sizeof(struct lookupmodulestr), FALSE);
 
 p->dl = dl;
 p->info = info;
@@ -473,6 +573,9 @@ extern lookup_module_info dsearch_lookup_module_info;
 #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
@@ -500,7 +603,10 @@ extern lookup_module_info pgsql_lookup_module_info;
 #if defined(LOOKUP_REDIS) && LOOKUP_REDIS!=2
 extern lookup_module_info redis_lookup_module_info;
 #endif
-#if defined(EXPERIMENTAL_SPF)
+#if defined(EXPERIMENTAL_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
@@ -518,182 +624,192 @@ void
 init_lookup_list(void)
 {
 #ifdef LOOKUP_MODULE_DIR
-  DIR *dd;
-  struct dirent *ent;
-  int countmodules = 0;
-  int moduleerrors = 0;
+DIR *dd;
+struct dirent *ent;
+int countmodules = 0;
+int moduleerrors = 0;
 #endif
-  struct lookupmodulestr *p;
-  const pcre *regex_islookupmod = regex_must_compile(
-      US"\\." DYNLIB_FN_EXT "$", FALSE, TRUE);
+static BOOL lookup_list_init_done = FALSE;
+rmark reset_point;
 
-  if (lookup_list_init_done)
-    return;
-  lookup_list_init_done = 1;
+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);
+addlookupmodule(NULL, &cdb_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_DBM) && LOOKUP_DBM!=2
-  addlookupmodule(NULL, &dbmdb_lookup_module_info);
+addlookupmodule(NULL, &dbmdb_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_DNSDB) && LOOKUP_DNSDB!=2
-  addlookupmodule(NULL, &dnsdb_lookup_module_info);
+addlookupmodule(NULL, &dnsdb_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_DSEARCH) && LOOKUP_DSEARCH!=2
-  addlookupmodule(NULL, &dsearch_lookup_module_info);
+addlookupmodule(NULL, &dsearch_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_IBASE) && LOOKUP_IBASE!=2
-  addlookupmodule(NULL, &ibase_lookup_module_info);
+addlookupmodule(NULL, &ibase_lookup_module_info);
 #endif
 
 #ifdef LOOKUP_LDAP
-  addlookupmodule(NULL, &ldap_lookup_module_info);
+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);
+addlookupmodule(NULL, &lsearch_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_MYSQL) && LOOKUP_MYSQL!=2
-  addlookupmodule(NULL, &mysql_lookup_module_info);
+addlookupmodule(NULL, &mysql_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_NIS) && LOOKUP_NIS!=2
-  addlookupmodule(NULL, &nis_lookup_module_info);
+addlookupmodule(NULL, &nis_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_NISPLUS) && LOOKUP_NISPLUS!=2
-  addlookupmodule(NULL, &nisplus_lookup_module_info);
+addlookupmodule(NULL, &nisplus_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_ORACLE) && LOOKUP_ORACLE!=2
-  addlookupmodule(NULL, &oracle_lookup_module_info);
+addlookupmodule(NULL, &oracle_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_PASSWD) && LOOKUP_PASSWD!=2
-  addlookupmodule(NULL, &passwd_lookup_module_info);
+addlookupmodule(NULL, &passwd_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_PGSQL) && LOOKUP_PGSQL!=2
-  addlookupmodule(NULL, &pgsql_lookup_module_info);
+addlookupmodule(NULL, &pgsql_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_REDIS) && LOOKUP_REDIS!=2
-  addlookupmodule(NULL, &redis_lookup_module_info);
+addlookupmodule(NULL, &redis_lookup_module_info);
+#endif
+
+#ifdef EXPERIMENTAL_LMDB
+addlookupmodule(NULL, &lmdb_lookup_module_info);
 #endif
 
-#ifdef EXPERIMENTAL_SPF
-  addlookupmodule(NULL, &spf_lookup_module_info);
+#ifdef SUPPORT_SPF
+addlookupmodule(NULL, &spf_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_SQLITE) && LOOKUP_SQLITE!=2
-  addlookupmodule(NULL, &sqlite_lookup_module_info);
+addlookupmodule(NULL, &sqlite_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_TESTDB) && LOOKUP_TESTDB!=2
-  addlookupmodule(NULL, &testdb_lookup_module_info);
+addlookupmodule(NULL, &testdb_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_WHOSON) && LOOKUP_WHOSON!=2
-  addlookupmodule(NULL, &whoson_lookup_module_info);
+addlookupmodule(NULL, &whoson_lookup_module_info);
 #endif
 
 #ifdef LOOKUP_MODULE_DIR
-  dd = opendir(LOOKUP_MODULE_DIR);
-  if (dd == NULL) {
-    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);
+if (!(dd = 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 {
-    DEBUG(D_lookup) debug_printf("Loading lookup modules from %s\n", LOOKUP_MODULE_DIR);
-    while ((ent = readdir(dd)) != NULL) {
-      char *name = ent->d_name;
-      int len = (int)strlen(name);
-      if (pcre_exec(regex_islookupmod, NULL, name, len, 0, PCRE_EOPT, NULL, 0) >= 0) {
-        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);
-
-        dl = dlopen(CS big_buffer, RTLD_NOW);// TJ was LAZY
-        if (dl == NULL) {
-          fprintf(stderr, "Error loading %s: %s\n", name, dlerror());
-          moduleerrors++;
-          log_write(0, LOG_MAIN|LOG_PANIC, "Error loading lookup module %s: %s\n", name, dlerror());
-          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()) != NULL) {
-          fprintf(stderr, "%s does not appear to be a lookup module (%s)\n", name, errormsg);
-          dlclose(dl);
-          moduleerrors++;
-          log_write(0, LOG_MAIN|LOG_PANIC, "%s does not appear to be a lookup module (%s)\n", name, errormsg);
-          continue;
-        }
-        if (info->magic != LOOKUP_MODULE_INFO_MAGIC) {
-          fprintf(stderr, "Lookup module %s is not compatible with this version of Exim\n", name);
-          dlclose(dl);
-          moduleerrors++;
-          log_write(0, LOG_MAIN|LOG_PANIC, "Lookup module %s is not compatible with this version of Exim\n", name);
-          continue;
-        }
-
-        addlookupmodule(dl, info);
-        DEBUG(D_lookup) debug_printf("Loaded \"%s\" (%d lookup types)\n", name, info->lookupcount);
-        countmodules++;
+else
+  {
+  const pcre *regex_islookupmod = regex_must_compile(
+    US"\\." DYNLIB_FN_EXT "$", FALSE, 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 (pcre_exec(regex_islookupmod, NULL, name, len, 0, PCRE_EOPT, NULL, 0) >= 0)
+      {
+      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++;
       }
     }
-    closedir(dd);
+  store_free((void*)regex_islookupmod);
+  closedir(dd);
   }
 
-  DEBUG(D_lookup) debug_printf("Loaded %d lookup modules\n", countmodules);
+DEBUG(D_lookup) debug_printf("Loaded %d lookup modules\n", countmodules);
 #endif
 
-  store_free((void*)regex_islookupmod);
-
-  DEBUG(D_lookup) debug_printf("Total %d lookups\n", lookup_list_count);
+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);
+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 */
-  p = lookupmodules;
-  while (p) {
-    int j;
-    struct lookupmodulestr *pnext;
-
-    for (j = 0; j < p->info->lookupcount; j++)
-      add_lookup_to_list(p->info->lookups[j]);
-
-    pnext = p->next;
-    store_free(p);
-    p = pnext;
-  }
-  /* just to be sure */
-  lookupmodules = NULL;
+/* 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 */