From: Philip Hazel <ph10@hermes.cam.ac.uk>
Date: Mon, 12 Sep 2005 15:09:55 +0000 (+0000)
Subject: Disable widen_domains when verifying senders, unless rewrite_headers is
X-Git-Tag: exim-4_53~27
X-Git-Url: https://git.exim.org/exim.git/commitdiff_plain/fd6de02e0406522ba0cfff43d6be5b0201200b95

Disable widen_domains when verifying senders, unless rewrite_headers is
off.
---

diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index 5ad040e4c..55b7562c8 100644
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -1,4 +1,4 @@
-$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.223 2005/09/12 14:03:42 ph10 Exp $
+$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.224 2005/09/12 15:09:55 ph10 Exp $
 
 Change log file for Exim from version 4.21
 -------------------------------------------
@@ -170,6 +170,9 @@ PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
 PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
       address in a domain literal was a prefix of an interface address.
 
+PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
+      when verifying a sender address, unless rewrite_headers is false.
+
 
 Exim version 4.52
 -----------------
diff --git a/src/src/route.c b/src/src/route.c
index a80ecb62d..3a36f8a8e 100644
--- a/src/src/route.c
+++ b/src/src/route.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/route.c,v 1.5 2005/03/15 11:37:21 ph10 Exp $ */
+/* $Cambridge: exim/src/src/route.c,v 1.6 2005/09/12 15:09:55 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -1697,8 +1697,8 @@ for (r = (addr->start_router == NULL)? routers : addr->start_router;
 
   HDEBUG(D_route) debug_printf("calling %s router\n", r->name);
 
-  yield = (r->info->code)(r, addr, pw, verify != v_none, paddr_local,
-    paddr_remote, addr_new, addr_succeed);
+  yield = (r->info->code)(r, addr, pw, verify, paddr_local, paddr_remote,
+    addr_new, addr_succeed);
 
   if (yield == FAIL)
     {
diff --git a/src/src/routers/accept.c b/src/src/routers/accept.c
index ae940661e..9b9c9d8cf 100644
--- a/src/src/routers/accept.c
+++ b/src/src/routers/accept.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/routers/accept.c,v 1.2 2005/01/04 10:00:44 ph10 Exp $ */
+/* $Cambridge: exim/src/src/routers/accept.c,v 1.3 2005/09/12 15:09:55 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -81,7 +81,7 @@ int accept_router_entry(
   router_instance *rblock,        /* data for this instantiation */
   address_item *addr,             /* address we are working on */
   struct passwd *pw,              /* passwd entry after check_local_user */
-  BOOL verify,                    /* TRUE when verifying */
+  int verify,                     /* v_none/v_recipient/v_sender/v_expn */
   address_item **addr_local,      /* add it to this if it's local */
   address_item **addr_remote,     /* add it to this if it's remote */
   address_item **addr_new,        /* put new addresses on here */
diff --git a/src/src/routers/accept.h b/src/src/routers/accept.h
index 421b8f923..2a7d33862 100644
--- a/src/src/routers/accept.h
+++ b/src/src/routers/accept.h
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/routers/accept.h,v 1.2 2005/01/04 10:00:44 ph10 Exp $ */
+/* $Cambridge: exim/src/src/routers/accept.h,v 1.3 2005/09/12 15:09:55 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -25,7 +25,7 @@ extern accept_router_options_block accept_router_option_defaults;
 /* The main and initialization entry points for the router */
 
 extern int accept_router_entry(router_instance *, address_item *,
-  struct passwd *, BOOL, address_item **, address_item **,
+  struct passwd *, int, address_item **, address_item **,
   address_item **, address_item **);
 
 extern void accept_router_init(router_instance *);
diff --git a/src/src/routers/dnslookup.c b/src/src/routers/dnslookup.c
index fd7140e46..50c767839 100644
--- a/src/src/routers/dnslookup.c
+++ b/src/src/routers/dnslookup.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/routers/dnslookup.c,v 1.4 2005/06/17 14:20:48 ph10 Exp $ */
+/* $Cambridge: exim/src/src/routers/dnslookup.c,v 1.5 2005/09/12 15:09:55 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -128,7 +128,7 @@ dnslookup_router_entry(
   router_instance *rblock,        /* data for this instantiation */
   address_item *addr,             /* address we are working on */
   struct passwd *pw,              /* passwd entry after check_local_user */
-  BOOL verify,                    /* TRUE when verifying */
+  int verify,                     /* v_none/v_recipient/v_sender/v_expn */
   address_item **addr_local,      /* add it to this if it's local */
   address_item **addr_remote,     /* add it to this if it's remote */
   address_item **addr_new,        /* put new addresses on here */
@@ -177,9 +177,19 @@ precedence over global names. For example, if the domain is "xxx.ch" it might
 be something in the "ch" toplevel domain, but it also might be xxx.ch.xyz.com.
 The choice of pre- or post-widening affects which takes precedence. If ever
 somebody comes up with some kind of requirement for pre-widening, presumably
-with some conditions under which it is done, it can be selected here. */
-
-if (ob->widen_domains != NULL)
+with some conditions under which it is done, it can be selected here.
+
+The rewrite_headers option works only when routing an address at transport
+time, because the alterations to the headers are not persistent so must be
+worked out immediately before they are used. Sender addresses are routed for
+verification purposes, but never at transport time, so any header changes that
+you might expect as a result of sender domain widening do not occur. Therefore
+we do not perform widening when verifying sender addresses; however, widening
+sender addresses is OK if we do not have to rewrite the headers. The
+suppression of widening for sender addresses is silent because it is the normal
+desirable behaviour. */
+
+if (ob->widen_domains != NULL && (verify != v_sender || !ob->rewrite_headers))
   {
   listptr = ob->widen_domains;
   widen = string_nextinlist(&listptr, &widen_sep, widen_buffer,
diff --git a/src/src/routers/dnslookup.h b/src/src/routers/dnslookup.h
index 974fd47fe..57dd7e50a 100644
--- a/src/src/routers/dnslookup.h
+++ b/src/src/routers/dnslookup.h
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/routers/dnslookup.h,v 1.2 2005/01/04 10:00:44 ph10 Exp $ */
+/* $Cambridge: exim/src/src/routers/dnslookup.h,v 1.3 2005/09/12 15:09:55 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -33,7 +33,7 @@ extern dnslookup_router_options_block dnslookup_router_option_defaults;
 /* The main and initialization entry points for the router */
 
 extern int dnslookup_router_entry(router_instance *, address_item *,
-  struct passwd *, BOOL, address_item **, address_item **,
+  struct passwd *, int, address_item **, address_item **,
   address_item **, address_item **);
 
 extern void dnslookup_router_init(router_instance *);
diff --git a/src/src/routers/ipliteral.c b/src/src/routers/ipliteral.c
index b091c4e61..ac99fd989 100644
--- a/src/src/routers/ipliteral.c
+++ b/src/src/routers/ipliteral.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/routers/ipliteral.c,v 1.4 2005/01/11 15:51:03 ph10 Exp $ */
+/* $Cambridge: exim/src/src/routers/ipliteral.c,v 1.5 2005/09/12 15:09:55 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -90,7 +90,7 @@ ipliteral_router_entry(
   router_instance *rblock,        /* data for this instantiation */
   address_item *addr,             /* address we are working on */
   struct passwd *pw,              /* passwd entry after check_local_user */
-  BOOL verify,                    /* TRUE when verifying */
+  int verify,                     /* v_none/v_recipient/v_sender/v_expn */
   address_item **addr_local,      /* add it to this if it's local */
   address_item **addr_remote,     /* add it to this if it's remote */
   address_item **addr_new,        /* put new addresses on here */
diff --git a/src/src/routers/ipliteral.h b/src/src/routers/ipliteral.h
index 9df8d087e..165f2bc49 100644
--- a/src/src/routers/ipliteral.h
+++ b/src/src/routers/ipliteral.h
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/routers/ipliteral.h,v 1.2 2005/01/04 10:00:44 ph10 Exp $ */
+/* $Cambridge: exim/src/src/routers/ipliteral.h,v 1.3 2005/09/12 15:09:55 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -28,7 +28,7 @@ extern ipliteral_router_options_block ipliteral_router_option_defaults;
 /* The main and initialization entry points for the router */
 
 extern int ipliteral_router_entry(router_instance *, address_item *,
-  struct passwd *, BOOL, address_item **, address_item **,
+  struct passwd *, int, address_item **, address_item **,
   address_item **, address_item **);
 
 extern void ipliteral_router_init(router_instance *);
diff --git a/src/src/routers/iplookup.c b/src/src/routers/iplookup.c
index f4120d91c..e7fba3447 100644
--- a/src/src/routers/iplookup.c
+++ b/src/src/routers/iplookup.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/routers/iplookup.c,v 1.3 2005/06/27 14:29:44 ph10 Exp $ */
+/* $Cambridge: exim/src/src/routers/iplookup.c,v 1.4 2005/09/12 15:09:55 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -137,7 +137,7 @@ iplookup_router_entry(
   router_instance *rblock,        /* data for this instantiation */
   address_item *addr,             /* address we are working on */
   struct passwd *pw,              /* passwd entry after check_local_user */
-  BOOL verify,                    /* TRUE when verifying */
+  int verify,                     /* v_none/v_recipient/v_sender/v_expn */
   address_item **addr_local,      /* add it to this if it's local */
   address_item **addr_remote,     /* add it to this if it's remote */
   address_item **addr_new,        /* put new addresses on here */
diff --git a/src/src/routers/iplookup.h b/src/src/routers/iplookup.h
index 2de40389f..59b06b4d7 100644
--- a/src/src/routers/iplookup.h
+++ b/src/src/routers/iplookup.h
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/routers/iplookup.h,v 1.2 2005/01/04 10:00:44 ph10 Exp $ */
+/* $Cambridge: exim/src/src/routers/iplookup.h,v 1.3 2005/09/12 15:09:55 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -35,7 +35,7 @@ extern iplookup_router_options_block iplookup_router_option_defaults;
 /* The main and initialization entry points for the router */
 
 extern int iplookup_router_entry(router_instance *, address_item *,
-  struct passwd *, BOOL, address_item **, address_item **,
+  struct passwd *, int, address_item **, address_item **,
   address_item **, address_item **);
 
 extern void iplookup_router_init(router_instance *);
diff --git a/src/src/routers/manualroute.c b/src/src/routers/manualroute.c
index 128c09df8..e70c7bf3d 100644
--- a/src/src/routers/manualroute.c
+++ b/src/src/routers/manualroute.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/routers/manualroute.c,v 1.2 2005/01/04 10:00:44 ph10 Exp $ */
+/* $Cambridge: exim/src/src/routers/manualroute.c,v 1.3 2005/09/12 15:09:55 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -191,7 +191,7 @@ manualroute_router_entry(
   router_instance *rblock,        /* data for this instantiation */
   address_item *addr,             /* address we are working on */
   struct passwd *pw,              /* passwd entry after check_local_user */
-  BOOL verify,                    /* TRUE when verifying */
+  int verify,                     /* v_none/v_recipient/v_sender/v_expn */
   address_item **addr_local,      /* add it to this if it's local */
   address_item **addr_remote,     /* add it to this if it's remote */
   address_item **addr_new,        /* put new addresses on here */
@@ -386,7 +386,7 @@ address is just accepted. */
 
 if (hostlist[0] == 0)
   {
-  if (verify) goto ROUTED;
+  if (verify != v_none) goto ROUTED;
   addr->message = string_sprintf("error in %s router: no host(s) specified "
     "for domain %s", rblock->name, domain);
   log_write(0, LOG_MAIN, "%s", addr->message);
@@ -405,7 +405,7 @@ if (rc != OK) return rc;
 defined for these hosts. It will be a remote one, as a local transport is
 dealt with above. However, we don't need one if verifying only. */
 
-if (transport == NULL && !verify)
+if (transport == NULL && verify == v_none)
     {
     log_write(0, LOG_MAIN, "Error in %s router: no transport defined",
       rblock->name);
diff --git a/src/src/routers/manualroute.h b/src/src/routers/manualroute.h
index 64659b585..af2bf6202 100644
--- a/src/src/routers/manualroute.h
+++ b/src/src/routers/manualroute.h
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/routers/manualroute.h,v 1.2 2005/01/04 10:00:44 ph10 Exp $ */
+/* $Cambridge: exim/src/src/routers/manualroute.h,v 1.3 2005/09/12 15:09:55 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -31,7 +31,7 @@ extern manualroute_router_options_block manualroute_router_option_defaults;
 /* The main and initialization entry points for the router */
 
 extern int manualroute_router_entry(router_instance *, address_item *,
-  struct passwd *, BOOL, address_item **, address_item **,
+  struct passwd *, int, address_item **, address_item **,
   address_item **, address_item **);
 
 extern void manualroute_router_init(router_instance *);
diff --git a/src/src/routers/queryprogram.c b/src/src/routers/queryprogram.c
index 2aed3ef82..ee86553f8 100644
--- a/src/src/routers/queryprogram.c
+++ b/src/src/routers/queryprogram.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/routers/queryprogram.c,v 1.5 2005/06/27 14:29:44 ph10 Exp $ */
+/* $Cambridge: exim/src/src/routers/queryprogram.c,v 1.6 2005/09/12 15:09:55 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -181,7 +181,7 @@ queryprogram_router_entry(
   router_instance *rblock,        /* data for this instantiation */
   address_item *addr,             /* address we are working on */
   struct passwd *pw,              /* passwd entry after check_local_user */
-  BOOL verify,                    /* TRUE when verifying */
+  int verify,                     /* v_none/v_recipient/v_sender/v_expn */
   address_item **addr_local,      /* add it to this if it's local */
   address_item **addr_remote,     /* add it to this if it's remote */
   address_item **addr_new,        /* put new addresses on here */
diff --git a/src/src/routers/queryprogram.h b/src/src/routers/queryprogram.h
index 57968817d..25f477180 100644
--- a/src/src/routers/queryprogram.h
+++ b/src/src/routers/queryprogram.h
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/routers/queryprogram.h,v 1.2 2005/01/04 10:00:44 ph10 Exp $ */
+/* $Cambridge: exim/src/src/routers/queryprogram.h,v 1.3 2005/09/12 15:09:55 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -34,7 +34,7 @@ extern queryprogram_router_options_block queryprogram_router_option_defaults;
 /* The main and initialization entry points for the router */
 
 extern int queryprogram_router_entry(router_instance *, address_item *,
-  struct passwd *, BOOL, address_item **, address_item **,
+  struct passwd *, int, address_item **, address_item **,
   address_item **, address_item **);
 
 extern void queryprogram_router_init(router_instance *);
diff --git a/src/src/routers/redirect.c b/src/src/routers/redirect.c
index 418116d03..9be15ede4 100644
--- a/src/src/routers/redirect.c
+++ b/src/src/routers/redirect.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/routers/redirect.c,v 1.13 2005/06/27 15:11:04 tom Exp $ */
+/* $Cambridge: exim/src/src/routers/redirect.c,v 1.14 2005/09/12 15:09:55 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -258,7 +258,7 @@ passed on must have the original errors_address value.
 Arguments:
   rblock               the router control block
   addr                 the address being routed
-  verify               true if verifying
+  verify               v_none/v_recipient/v_sender/v_expn
   addr_prop            point to the propagated block, which is where the
                          new values are to be placed
 
@@ -268,7 +268,7 @@ Returns:    the result of rf_get_errors_address() or rf_get_munge_headers(),
 
 static int
 sort_errors_and_headers(router_instance *rblock, address_item *addr,
-  BOOL verify, address_item_propagated *addr_prop)
+  int verify, address_item_propagated *addr_prop)
 {
 int frc = rf_get_errors_address(addr, rblock, verify,
   &(addr_prop->errors_address));
@@ -499,7 +499,7 @@ int redirect_router_entry(
   router_instance *rblock,        /* data for this instantiation */
   address_item *addr,             /* address we are working on */
   struct passwd *pw,              /* passwd entry after check_local_user */
-  BOOL verify,                    /* TRUE when verifying */
+  int verify,                     /* v_none/v_recipient/v_sender/v_expn */
   address_item **addr_local,      /* add it to this if it's local */
   address_item **addr_remote,     /* add it to this if it's remote */
   address_item **addr_new,        /* put new addresses on here */
@@ -539,7 +539,7 @@ addr_prop.srs_sender = NULL;
 /* When verifying and testing addresses, the "logwrite" command in filters
 must be bypassed. */
 
-if (!verify && !address_test_mode) options |= RDO_REALLOG;
+if (verify == v_none && !address_test_mode) options |= RDO_REALLOG;
 
 /* Sort out the fixed or dynamic uid/gid. This uid is used (a) for reading the
 file (and interpreting a filter) and (b) for running the transports for
@@ -618,7 +618,8 @@ if (!ugid.gid_set && pw != NULL)
 
       /* Forward SRS */
       /* No point in actually performing SRS if we are just verifying a recipient */
-      if((srs_action & 1) && !verify && (sender_address ? sender_address[0] != 0 : FALSE))
+      if((srs_action & 1) && verify == v_none &&
+         (sender_address ? sender_address[0] != 0 : FALSE))
       {
 
         srs_orig_sender = sender_address;
@@ -801,12 +802,12 @@ dealing with it, the router declines. */
 if (eblock != NULL)
   {
   if (!moan_skipped_syntax_errors(
-        rblock->name,                           /* For message content */
-        eblock,                                 /* Ditto */
-        (verify || address_test_mode)?
-          NULL : ob->syntax_errors_to,          /* Who to mail */
-        generated != NULL,                      /* True if not all failed */
-        ob->syntax_errors_text))                /* Custom message */
+        rblock->name,                            /* For message content */
+        eblock,                                  /* Ditto */
+        (verify != v_none || address_test_mode)?
+          NULL : ob->syntax_errors_to,           /* Who to mail */
+        generated != NULL,                       /* True if not all failed */
+        ob->syntax_errors_text))                 /* Custom message */
     return DEFER;
 
   if (filtertype != FILTER_FORWARD || generated == NULL)
@@ -835,7 +836,7 @@ generated anything. Log what happened to this address, and return DISCARD. */
 
 if (frc == FF_DELIVERED)
   {
-  if (generated == NULL && !verify && !address_test_mode)
+  if (generated == NULL && verify == v_none && !address_test_mode)
     {
     log_write(0, LOG_MAIN, "=> %s <%s> R=%s", discarded, addr->address,
       rblock->name);
diff --git a/src/src/routers/redirect.h b/src/src/routers/redirect.h
index bc6ab974c..99241e40e 100644
--- a/src/src/routers/redirect.h
+++ b/src/src/routers/redirect.h
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/routers/redirect.h,v 1.5 2005/05/24 08:15:02 tom Exp $ */
+/* $Cambridge: exim/src/src/routers/redirect.h,v 1.6 2005/09/12 15:09:55 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -69,7 +69,7 @@ extern redirect_router_options_block redirect_router_option_defaults;
 /* The main and initialization entry points for the router */
 
 extern int redirect_router_entry(router_instance *, address_item *,
-  struct passwd *, BOOL, address_item **, address_item **,
+  struct passwd *, int, address_item **, address_item **,
   address_item **, address_item **);
 
 extern void redirect_router_init(router_instance *);
diff --git a/src/src/routers/rf_get_errors_address.c b/src/src/routers/rf_get_errors_address.c
index 08d18709a..e0eb0f026 100644
--- a/src/src/routers/rf_get_errors_address.c
+++ b/src/src/routers/rf_get_errors_address.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/routers/rf_get_errors_address.c,v 1.3 2005/01/04 10:00:44 ph10 Exp $ */
+/* $Cambridge: exim/src/src/routers/rf_get_errors_address.c,v 1.4 2005/09/12 15:09:55 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -26,7 +26,7 @@ configuration.
 Arguments:
   addr         the input address
   rblock       the router instance
-  verify       TRUE when verifying
+  verify       v_none / v_recipient / v_sender / v_expn
   errors_to    point the errors address here
 
 Returns:       OK if no problem
@@ -36,7 +36,7 @@ Returns:       OK if no problem
 
 int
 rf_get_errors_address(address_item *addr, router_instance *rblock,
-  BOOL verify, uschar **errors_to)
+  int verify, uschar **errors_to)
 {
 uschar *s;
 
@@ -75,7 +75,7 @@ of routers by checking the sender address. When testing an address, there may
 not be a sender address. We also need to save and restore the expansion values
 associated with an address. */
 
-if (verify)
+if (verify != v_none)
   {
   *errors_to = s;
   DEBUG(D_route)
diff --git a/src/src/structs.h b/src/src/structs.h
index 824378871..f95c63ac0 100644
--- a/src/src/structs.h
+++ b/src/src/structs.h
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/structs.h,v 1.6 2005/05/24 08:15:02 tom Exp $ */
+/* $Cambridge: exim/src/src/structs.h,v 1.7 2005/09/12 15:09:55 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -307,7 +307,7 @@ typedef struct router_info {
     router_instance *,
     struct address_item *,
     struct passwd *,
-    BOOL,
+    int,
     struct address_item **,
     struct address_item **,
     struct address_item **,