src/routers/rf_queue_add.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2015 */
   6 /* See the file NOTICE for conditions of use and distribution. */
   7
   8 #include "../exim.h"
   9 #include "rf_functions.h"
  10
  11
  12 /*************************************************
  13 *        Queue address for transport             *
  14 *************************************************/
  15
  16 /* This function is called to put an address onto the local or remote transport
  17 queue, as appropriate. When the driver is for verifying only, a transport need
  18 not be set, in which case it doesn't actually matter which queue the address
  19 gets put on.
  20
  21 The generic uid/gid options are inspected and put into the address if they are
  22 set. For a remote transport, if there are fallback hosts, they are added to the
  23 address.
  24
  25 Arguments:
  26   addr          the address, with the transport field set (if not verify only)
  27   paddr_local   pointer to the anchor of the local transport chain
  28   paddr_remote  pointer to the anchor of the remote transport chain
  29   rblock        the router block
  30   pw            password entry if check_local_user was set, or NULL
  31
  32 Returns:        FALSE on error; the only case is failing to get a uid/gid
  33 */
  34
  35 BOOL
  36 rf_queue_add(address_item *addr, address_item **paddr_local,
  37   address_item **paddr_remote, router_instance *rblock, struct passwd *pw)
  38 {
  39 addr->prop.domain_data = deliver_domain_data;         /* Save these values for */
  40 addr->prop.localpart_data = deliver_localpart_data;   /* use in the transport */
  41
  42 /* Handle a local transport */
  43
  44 if (addr->transport != NULL && addr->transport->info->local)
  45   {
  46   ugid_block ugid;
  47
  48   /* Default uid/gid and transport-time home directory are from the passwd file
  49   when check_local_user is set, but can be overridden by explicit settings.
  50   When getting the home directory out of the password information, set the
  51   flag that prevents expansion later. */
  52
  53   if (pw != NULL)
  54     {
  55     addr->uid = pw->pw_uid;
  56     addr->gid = pw->pw_gid;
  57     setflag(addr, af_uid_set|af_gid_set|af_home_expanded);
  58     addr->home_dir = string_copy(US pw->pw_dir);
  59     }
  60
  61   if (!rf_get_ugid(rblock, addr, &ugid)) return FALSE;
  62   rf_set_ugid(addr, &ugid);
  63
  64   /* transport_home_directory (in rblock->home_directory) takes priority;
  65   otherwise use the expanded value of router_home_directory. The flag also
  66   tells the transport not to re-expand it. */
  67
  68   if (rblock->home_directory != NULL)
  69     {
  70     addr->home_dir = rblock->home_directory;
  71     clearflag(addr, af_home_expanded);
  72     }
  73   else if (addr->home_dir == NULL && testflag(addr, af_home_expanded))
  74     addr->home_dir = deliver_home;
  75
  76   addr->current_dir = rblock->current_directory;
  77
  78   addr->next = *paddr_local;
  79   *paddr_local = addr;
  80   }
  81
  82 /* For a remote transport, set up the fallback host list, and keep a count of
  83 the total number of addresses routed to remote transports. */
  84
  85 else
  86   {
  87   addr->fallback_hosts = rblock->fallback_hostlist;
  88   addr->next = *paddr_remote;
  89   *paddr_remote = addr;
  90   remote_delivery_count++;
  91   }
  92
  93 DEBUG(D_route)
  94   {
  95   debug_printf("queued for %s transport: local_part = %s\ndomain = %s\n"
  96     "  errors_to=%s\n",
  97     (addr->transport == NULL)? US"<unset>" : addr->transport->name,
  98     addr->local_part, addr->domain, addr->prop.errors_address);
  99   debug_printf("  domain_data=%s localpart_data=%s\n", addr->prop.domain_data,
 100     addr->prop.localpart_data);
 101   }
 102
 103 return TRUE;
 104 }
 105
 106 /* End of rf_queue_add.c */