constification

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

diff --git a/src/src/route.c b/src/src/route.c
index 1b9676f3f87ffd3aea6017f76b67bea0f2e93a87..ede15304159b651bd38842af62efe2e1216e4e3b 100644 (file)
--- a/src/src/route.c
+++ b/src/src/route.c
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2015 */
+/* Copyright (c) University of Cambridge 1995 - 2018 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 /* Functions concerned with routing, and the list of generic router options. */
@@ -150,12 +150,11 @@ int optionlist_routers_size = nelem(optionlist_routers);
 void
 options_routers(void)
 {
-struct router_info * ri;
 uschar buf[64];
 
 options_from_list(optionlist_routers, nelem(optionlist_routers), US"ROUTERS", NULL);
 
-for (ri = routers_available; ri->driver_name[0]; ri++)
+for (router_info * ri = routers_available; ri->driver_name[0]; ri++)
   {
   spf(buf, sizeof(buf), US"_DRIVER_ROUTER_%T", ri->driver_name);
   builtin_macro_create(buf);
@@ -222,8 +221,6 @@ function. */
 void
 route_init(void)
 {
-router_instance *r;
-
 readconf_driver_init(US"router",
   (driver_instance **)(&routers),     /* chain anchor */
   (driver_info *)routers_available,   /* available drivers */
@@ -233,7 +230,7 @@ readconf_driver_init(US"router",
   optionlist_routers,                 /* generic options */
   optionlist_routers_size);
 
-for (r = routers; r; r = r->next)
+for (router_instance * r = routers; r; r = r->next)
   {
   uschar *s = r->self;
 
@@ -244,14 +241,12 @@ for (r = routers; r; r = r->next)
 
   /* Check for transport or no transport on certain routers */
 
-  if ((r->info->ri_flags & ri_yestransport) != 0 &&
-      r->transport_name == NULL &&
-      !r->verify_only)
+  if (  (r->info->ri_flags & ri_yestransport)
+     && !r->transport_name && !r->verify_only)
     log_write(0, LOG_PANIC_DIE|LOG_CONFIG, "%s router:\n  "
       "a transport is required for this router", r->name);
 
-  if ((r->info->ri_flags & ri_notransport) != 0 &&
-       r->transport_name != NULL)
+  if ((r->info->ri_flags & ri_notransport) && r->transport_name)
     log_write(0, LOG_PANIC_DIE|LOG_CONFIG, "%s router:\n  "
       "a transport must not be defined for this router", r->name);
 
@@ -292,14 +287,16 @@ for (r = routers; r; r = r->next)
 
   /* Check redirect_router and pass_router are valid */
 
-  if (r->redirect_router_name != NULL)
+  if (r->redirect_router_name)
     set_router(r, r->redirect_router_name, &(r->redirect_router), FALSE);
 
-  if (r->pass_router_name != NULL)
+  if (r->pass_router_name)
     set_router(r, r->pass_router_name, &(r->pass_router), TRUE);
 
+#ifdef notdef
   DEBUG(D_route) debug_printf("DSN: %s %s\n", r->name,
        r->dsn_lasthop ? "lasthop set" : "propagating DSN");
+#endif
   }
 }
 
@@ -317,8 +314,7 @@ is finished, via this function. */
 void
 route_tidyup(void)
 {
-router_instance *r;
-for (r = routers; r; r = r->next)
+for (router_instance * r = routers; r; r = r->next)
   if (r->info->tidyup) (r->info->tidyup)(r);
 }
 
@@ -352,9 +348,8 @@ while ((prefix = string_nextinlist(&listptr, &sep, prebuf, sizeof(prebuf))))
   int plen = Ustrlen(prefix);
   if (prefix[0] == '*')
     {
-    const uschar *p;
     prefix++;
-    for (p = local_part + Ustrlen(local_part) - (--plen);
+    for (const uschar * p = local_part + Ustrlen(local_part) - (--plen);
          p >= local_part; p--)
       if (strncmpic(prefix, p, plen) == 0) return plen + p - local_part;
     }
@@ -396,9 +391,8 @@ while ((suffix = string_nextinlist(&listptr, &sep, sufbuf, sizeof(sufbuf))))
   int slen = Ustrlen(suffix);
   if (suffix[slen-1] == '*')
     {
-    const uschar *p, *pend;
-    pend = local_part + alen - (--slen) + 1;
-    for (p = local_part; p < pend; p++)
+    const uschar *pend = local_part + alen - (--slen) + 1;
+    for (const uschar * p = local_part; p < pend; p++)
       if (strncmpic(suffix, p, slen) == 0) return alen - (p - local_part);
     }
   else
@@ -606,7 +600,7 @@ while ((check = string_nextinlist(&listptr, &sep, buffer, sizeof(buffer))))
 
   if (!ss)
     {
-    if (expand_string_forcedfail) continue;
+    if (f.expand_string_forcedfail) continue;
     *perror = string_sprintf("failed to expand \"%s\" for require_files: %s",
       check, expand_string_message);
     goto RETURN_DEFER;
@@ -854,7 +848,7 @@ deliver_localpart_data = NULL;
 sender_data = NULL;
 local_user_gid = (gid_t)(-1);
 local_user_uid = (uid_t)(-1);
-search_find_defer = FALSE;
+f.search_find_defer = FALSE;
 
 /* Skip this router if not verifying and it has verify_only set */
 
@@ -866,7 +860,7 @@ if ((verify == v_none || verify == v_expn) && r->verify_only)
 
 /* Skip this router if testing an address (-bt) and address_test is not set */
 
-if (address_test_mode && !r->address_test)
+if (f.address_test_mode && !r->address_test)
   {
   DEBUG(D_route) debug_printf("%s router skipped: address_test is unset\n",
     r->name);
@@ -958,7 +952,7 @@ if (r->router_home_directory)
   uschar *router_home = expand_string(r->router_home_directory);
   if (!router_home)
     {
-    if (!expand_string_forcedfail)
+    if (!f.expand_string_forcedfail)
       {
       *perror = string_sprintf("failed to expand \"%s\" for "
         "router_home_directory: %s", r->router_home_directory,
@@ -1003,7 +997,7 @@ if (r->condition)
   DEBUG(D_route) debug_printf("checking \"condition\" \"%.80s\"...\n", r->condition);
   if (!expand_check_condition(r->condition, r->name, US"router"))
     {
-    if (search_find_defer)
+    if (f.search_find_defer)
       {
       *perror = US"condition check lookup defer";
       DEBUG(D_route) debug_printf("%s\n", *perror);
@@ -1460,7 +1454,6 @@ for (r = addr->start_router ? addr->start_router : routers; r; r = nextr)
   uschar *error;
   struct passwd *pw = NULL;
   struct passwd pwcopy;
-  address_item *parent;
   BOOL loop_detected = FALSE;
   BOOL more;
   int loopcount = 0;
@@ -1474,7 +1467,7 @@ for (r = addr->start_router ? addr->start_router : routers; r; r = nextr)
 
   /* There are some weird cases where logging is disabled */
 
-  disable_logging = r->disable_logging;
+  f.disable_logging = r->disable_logging;
 
   /* Record the last router to handle the address, and set the default
   next router. */
@@ -1494,7 +1487,7 @@ for (r = addr->start_router ? addr->start_router : routers; r; r = nextr)
   continually adding to an address, for example), put a long stop counter on
   the number of parents. */
 
-  for (parent = addr->parent; parent; parent = parent->parent)
+  for (address_item * parent = addr->parent; parent; parent = parent->parent)
     {
     if (parent->router == r)
       {
@@ -1620,7 +1613,7 @@ for (r = addr->start_router ? addr->start_router : routers; r; r = nextr)
     deliver_address_data = expand_string(r->address_data);
     if (!deliver_address_data)
       {
-      if (expand_string_forcedfail)
+      if (f.expand_string_forcedfail)
         {
         DEBUG(D_route) debug_printf("forced failure in expansion of \"%s\" "
             "(address_data): decline action taken\n", r->address_data);
@@ -1672,10 +1665,7 @@ for (r = addr->start_router ? addr->start_router : routers; r; r = nextr)
     pw = &pwcopy;
     }
 
-  /* Run the router, and handle the consequences. */
-
-  /* ... but let us check on DSN before. If this should be the last hop for DSN
-  set flag. */
+  /* If this should be the last hop for DSN flag the addr. */
 
   if (r->dsn_lasthop && !(addr->dsn_flags & rf_dsnlasthop))
     {
@@ -1683,6 +1673,8 @@ for (r = addr->start_router ? addr->start_router : routers; r; r = nextr)
     HDEBUG(D_route) debug_printf("DSN: last hop for %s\n", addr->address);
     }
 
+  /* Run the router, and handle the consequences. */
+
   HDEBUG(D_route) debug_printf("calling %s router\n", r->name);
 
   yield = (r->info->code)(r, addr, pw, verify, paddr_local, paddr_remote,
@@ -1766,7 +1758,7 @@ if (!r)
       uschar *expmessage = expand_string(addr->router->cannot_route_message);
       if (!expmessage)
         {
-        if (!expand_string_forcedfail)
+        if (!f.expand_string_forcedfail)
           log_write(0, LOG_MAIN|LOG_PANIC, "failed to expand "
             "cannot_route_message in %s router: %s", addr->router->name,
             expand_string_message);
@@ -1821,8 +1813,7 @@ if (r->translate_ip_address)
   {
   int rc;
   int old_pool = store_pool;
-  host_item *h;
-  for (h = addr->host_list; h; h = h->next)
+  for (host_item * h = addr->host_list; h; h = h->next)
     {
     uschar *newaddress;
     uschar *oldaddress, *oldname;
@@ -1835,7 +1826,7 @@ if (r->translate_ip_address)
 
     if (!newaddress)
       {
-      if (expand_string_forcedfail) continue;
+      if (f.expand_string_forcedfail) continue;
       addr->basic_errno = ERRNO_EXPANDFAIL;
       addr->message = string_sprintf("translate_ip_address expansion "
         "failed: %s", expand_string_message);
@@ -1887,16 +1878,14 @@ HDEBUG(D_route) debug_printf("routed by %s router%s\n", r->name,
 
 DEBUG(D_route)
   {
-  host_item *h;
-
   debug_printf("  envelope to: %s\n", addr->address);
-  debug_printf("  transport: %s\n", (addr->transport == NULL)?
-    US"<none>" : addr->transport->name);
+  debug_printf("  transport: %s\n", addr->transport
+    ? addr->transport->name : US"<none>");
 
   if (addr->prop.errors_address)
     debug_printf("  errors to %s\n", addr->prop.errors_address);
 
-  for (h = addr->host_list; h; h = h->next)
+  for (host_item * h = addr->host_list; h; h = h->next)
     {
     debug_printf("  host %s", h->name);
     if (h->address) debug_printf(" [%s]", h->address);
@@ -1923,7 +1912,7 @@ if (yield == DEFER && addr->message)
 
 deliver_set_expansions(NULL);
 router_name = NULL;
-disable_logging = FALSE;
+f.disable_logging = FALSE;
 return yield;
 }