Pull Andreas Metzler's fix for gnutls_certificate_verify_peers (bug 1095)

[exim.git] / src / src / drtables.c

diff --git a/src/src/drtables.c b/src/src/drtables.c
index e54202f430cf3a2cf1ac420cac78c329271ad15b..37ecf4f4b8cf92790a6fd3dfe292351538b82c79 100644 (file)
--- a/src/src/drtables.c
+++ b/src/src/drtables.c
@@ -1,5 +1,3 @@
-/* $Cambridge: exim/src/src/drtables.c,v 1.11 2009/11/16 19:50:36 nm4 Exp $ */
-
 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
@@ -21,6 +19,8 @@ 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
 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. */
@@ -389,108 +389,153 @@ static void add_lookup_to_list(lookup_info *info)
   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_WHOSON) && LOOKUP_WHOSON!=2
+extern lookup_module_info whoson_lookup_module_info;
+#endif
+#if defined(LOOKUP_TESTDB) && LOOKUP_TESTDB!=2
+extern lookup_module_info testdb_lookup_module_info;
+#endif
+#if defined(LOOKUP_SQLITE) && LOOKUP_SQLITE!=2
+extern lookup_module_info sqlite_lookup_module_info;
+#endif
+#ifdef EXPERIMENTAL_SPF
+extern lookup_module_info spf_lookup_module_info;
+#endif
+#if defined(LOOKUP_PGSQL) && LOOKUP_PGSQL!=2
+extern lookup_module_info pgsql_lookup_module_info;
+#endif
+#if defined(LOOKUP_PASSWD) && LOOKUP_PASSWD!=2
+extern lookup_module_info passwd_lookup_module_info;
+#endif
+#if defined(LOOKUP_ORACLE) && LOOKUP_ORACLE!=2
+extern lookup_module_info oracle_lookup_module_info;
+#endif
+#if defined(LOOKUP_NISPLUS) && LOOKUP_NISPLUS!=2
+extern lookup_module_info nisplus_lookup_module_info;
+#endif
+#if defined(LOOKUP_NIS) && LOOKUP_NIS!=2
+extern lookup_module_info nis_lookup_module_info;
+#endif
+#if defined(LOOKUP_MYSQL) && LOOKUP_MYSQL!=2
+extern lookup_module_info mysql_lookup_module_info;
+#endif
+#if defined(LOOKUP_LSEARCH) && LOOKUP_LSEARCH!=2
+extern lookup_module_info lsearch_lookup_module_info;
+#endif
+#ifdef LOOKUP_LDAP
+extern lookup_module_info ldap_lookup_module_info;
+#endif
+#if defined(LOOKUP_IBASE) && LOOKUP_IBASE!=2
+extern lookup_module_info ibase_lookup_module_info;
+#endif
+#if defined(LOOKUP_DSEARCH) && LOOKUP_DSEARCH!=2
+extern lookup_module_info dsearch_lookup_module_info;
+#endif
+#if defined(LOOKUP_DNSDB) && LOOKUP_DNSDB!=2
+extern lookup_module_info dnsdb_lookup_module_info;
+#endif
+#if defined(LOOKUP_DBM) && LOOKUP_DBM!=2
+extern lookup_module_info dbmdb_lookup_module_info;
+#endif
+#if defined(LOOKUP_CDB) && LOOKUP_CDB!=2
+extern lookup_module_info cdb_lookup_module_info;
+#endif
+
 void init_lookup_list(void)
 {
   DIR *dd;
   struct dirent *ent;
-  const pcre *regex_islookupmod = regex_must_compile(US"\\.so$", FALSE, TRUE);
+  const pcre *regex_islookupmod = regex_must_compile(
+      US"\\." DYNLIB_FN_EXT "$", FALSE, TRUE);
   int countmodules = 0;
   int moduleerrors = 0;
   struct lookupmodulestr *p;
 
+  if (lookup_list_init_done)
+    return;
+  lookup_list_init_done = 1;
+
 #if defined(LOOKUP_CDB) && LOOKUP_CDB!=2
-extern lookup_module_info cdb_lookup_module_info;
   addlookupmodule(NULL, &cdb_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_DBM) && LOOKUP_DBM!=2
-extern lookup_module_info dbmdb_lookup_module_info;
   addlookupmodule(NULL, &dbmdb_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_DNSDB) && LOOKUP_DNSDB!=2
-extern lookup_module_info dnsdb_lookup_module_info;
   addlookupmodule(NULL, &dnsdb_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_DSEARCH) && LOOKUP_DSEARCH!=2
-extern lookup_module_info dsearch_lookup_module_info;
   addlookupmodule(NULL, &dsearch_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_IBASE) && LOOKUP_IBASE!=2
-extern lookup_module_info ibase_lookup_module_info;
   addlookupmodule(NULL, &ibase_lookup_module_info);
 #endif
 
 #ifdef LOOKUP_LDAP
-extern lookup_module_info ldap_lookup_module_info;
   addlookupmodule(NULL, &ldap_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_LSEARCH) && LOOKUP_LSEARCH!=2
-extern lookup_module_info lsearch_lookup_module_info;
   addlookupmodule(NULL, &lsearch_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_MYSQL) && LOOKUP_MYSQL!=2
-extern lookup_module_info mysql_lookup_module_info;
   addlookupmodule(NULL, &mysql_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_NIS) && LOOKUP_NIS!=2
-extern lookup_module_info nis_lookup_module_info;
   addlookupmodule(NULL, &nis_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_NISPLUS) && LOOKUP_NISPLUS!=2
-extern lookup_module_info nisplus_lookup_module_info;
   addlookupmodule(NULL, &nisplus_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_ORACLE) && LOOKUP_ORACLE!=2
-extern lookup_module_info oracle_lookup_module_info;
   addlookupmodule(NULL, &oracle_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_PASSWD) && LOOKUP_PASSWD!=2
-extern lookup_module_info passwd_lookup_module_info;
   addlookupmodule(NULL, &passwd_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_PGSQL) && LOOKUP_PGSQL!=2
-extern lookup_module_info pgsql_lookup_module_info;
   addlookupmodule(NULL, &pgsql_lookup_module_info);
 #endif
 
 #ifdef EXPERIMENTAL_SPF
-extern lookup_module_info spf_lookup_module_info;
   addlookupmodule(NULL, &spf_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_SQLITE) && LOOKUP_SQLITE!=2
-extern lookup_module_info sqlite_lookup_module_info;
   addlookupmodule(NULL, &sqlite_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_TESTDB) && LOOKUP_TESTDB!=2
-extern lookup_module_info testdb_lookup_module_info;
   addlookupmodule(NULL, &testdb_lookup_module_info);
 #endif
 
 #if defined(LOOKUP_WHOSON) && LOOKUP_WHOSON!=2
-extern lookup_module_info whoson_lookup_module_info;
   addlookupmodule(NULL, &whoson_lookup_module_info);
 #endif
 
 #ifdef LOOKUP_MODULE_DIR
   dd = opendir(LOOKUP_MODULE_DIR);
   if (dd == NULL) {
-    DEBUG(5) debug_printf("Couldn't open %s: not loading lookup modules\n", 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(9) debug_printf("Loading lookup modules from %s\n", LOOKUP_MODULE_DIR);
+    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);
@@ -498,7 +543,7 @@ extern lookup_module_info whoson_lookup_module_info;
         int pathnamelen = len + (int)strlen(LOOKUP_MODULE_DIR) + 2;
         void *dl;
         struct lookup_module_info *info;
-        char *errormsg;
+        const char *errormsg;
 
         /* SRH: am I being paranoid here or what? */
         if (pathnamelen > big_buffer_size) {
@@ -542,19 +587,19 @@ extern lookup_module_info whoson_lookup_module_info;
         }
 
         addlookupmodule(dl, info);
-        DEBUG(9) debug_printf("Loaded \"%s\" (%d lookup types)\n", name, info->lookupcount);
+        DEBUG(D_lookup) debug_printf("Loaded \"%s\" (%d lookup types)\n", name, info->lookupcount);
         countmodules++;
       }
     }
     closedir(dd);
   }
 
-  DEBUG(9) 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(4) 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);