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-rw-r--r--src/drtables.c818
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diff --git a/src/drtables.c b/src/drtables.c
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+++ b/src/drtables.c
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+/*************************************************
+* Exim - an Internet mail transport agent *
+*************************************************/
+
+/* Copyright (c) University of Cambridge 1995 - 2018 */
+/* Copyright (c) The Exim Maintainers 2020 */
+/* See the file NOTICE for conditions of use and distribution. */
+
+
+#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
+various macros in config.h that ultimately come from Local/Makefile. They are
+all described in src/EDITME. */
+
+
+lookup_info **lookup_list;
+int lookup_list_count = 0;
+
+/* 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. */
+
+#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_EXTERNAL
+#include "auths/external.h"
+#endif
+
+#ifdef AUTH_GSASL
+#include "auths/gsasl_exim.h"
+#endif
+
+#ifdef AUTH_HEIMDAL_GSSAPI
+#include "auths/heimdal_gssapi.h"
+#endif
+
+#ifdef AUTH_PLAINTEXT
+#include "auths/plaintext.h"
+#endif
+
+#ifdef AUTH_SPA
+#include "auths/spa.h"
+#endif
+
+#ifdef AUTH_TLS
+#include "auths/tls.h"
+#endif
+
+auth_info auths_available[] = {
+
+/* Checking by an expansion condition on plain text */
+
+#ifdef AUTH_CRAM_MD5
+ {
+ .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
+ {
+ .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
+ {
+ .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
+ {
+ .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
+ {
+ .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
+ {
+ .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
+ {
+ .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
+ {
+ .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
+
+ { .driver_name = US"" } /* end marker */
+};
+
+
+/* Tables of information about which routers and transports are included in the
+exim binary. */
+
+/* Pull in the necessary header files */
+
+#include "routers/rf_functions.h"
+
+#ifdef ROUTER_ACCEPT
+#include "routers/accept.h"
+#endif
+
+#ifdef ROUTER_DNSLOOKUP
+#include "routers/dnslookup.h"
+#endif
+
+#ifdef ROUTER_MANUALROUTE
+#include "routers/manualroute.h"
+#endif
+
+#ifdef ROUTER_IPLITERAL
+#include "routers/ipliteral.h"
+#endif
+
+#ifdef ROUTER_IPLOOKUP
+#include "routers/iplookup.h"
+#endif
+
+#ifdef ROUTER_QUERYPROGRAM
+#include "routers/queryprogram.h"
+#endif
+
+#ifdef ROUTER_REDIRECT
+#include "routers/redirect.h"
+#endif
+
+#ifdef TRANSPORT_APPENDFILE
+#include "transports/appendfile.h"
+#endif
+
+#ifdef TRANSPORT_AUTOREPLY
+#include "transports/autoreply.h"
+#endif
+
+#ifdef TRANSPORT_LMTP
+#include "transports/lmtp.h"
+#endif
+
+#ifdef TRANSPORT_PIPE
+#include "transports/pipe.h"
+#endif
+
+#ifdef EXPERIMENTAL_QUEUEFILE
+#include "transports/queuefile.h"
+#endif
+
+#ifdef TRANSPORT_SMTP
+#include "transports/smtp.h"
+#endif
+
+
+/* Now set up the structures, terminated by an entry with a null name. */
+
+router_info routers_available[] = {
+#ifdef ROUTER_ACCEPT
+ {
+ .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
+ {
+ .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
+ {
+ .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
+ {
+ .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
+ {
+ .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
+ {
+ .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
+ {
+ .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"" }
+};
+
+
+
+transport_info transports_available[] = {
+#ifdef TRANSPORT_APPENDFILE
+ {
+ .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
+ {
+ .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
+ {
+ .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
+ {
+ .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
+ {
+ .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"" }
+};
+
+#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), FALSE);
+
+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(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
+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 EXPERIMENTAL_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 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++;
+ }
+ }
+ 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 */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 21:23:00 +0000