src/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 && 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)
  54     {
  55     addr->uid = pw->pw_uid;
  56     addr->gid = pw->pw_gid;
  57     setflag(addr, af_uid_set);
  58     setflag(addr, af_gid_set);
  59     setflag(addr, af_home_expanded);
  60     addr->home_dir = string_copy(US pw->pw_dir);
  61     }
  62
  63   if (!rf_get_ugid(rblock, addr, &ugid)) return FALSE;
  64   rf_set_ugid(addr, &ugid);
  65
  66   /* transport_home_directory (in rblock->home_directory) takes priority;
  67   otherwise use the expanded value of router_home_directory. The flag also
  68   tells the transport not to re-expand it. */
  69
  70   if (rblock->home_directory)
  71     {
  72     addr->home_dir = rblock->home_directory;
  73     clearflag(addr, af_home_expanded);
  74     }
  75   else if (!addr->home_dir && testflag(addr, af_home_expanded))
  76     addr->home_dir = deliver_home;
  77
  78   addr->current_dir = rblock->current_directory;
  79
  80   addr->next = *paddr_local;
  81   *paddr_local = addr;
  82   }
  83
  84 /* For a remote transport, set up the fallback host list, and keep a count of
  85 the total number of addresses routed to remote transports. */
  86
  87 else
  88   {
  89   addr->fallback_hosts = rblock->fallback_hostlist;
  90   addr->next = *paddr_remote;
  91   *paddr_remote = addr;
  92   remote_delivery_count++;
  93   }
  94
  95 DEBUG(D_route)
  96   {
  97   debug_printf("queued for %s transport: local_part = %s\ndomain = %s\n"
  98     "  errors_to=%s\n",
  99     (addr->transport == NULL)? US"<unset>" : addr->transport->name,
 100     addr->local_part, addr->domain, addr->prop.errors_address);
 101   debug_printf("  domain_data=%s localpart_data=%s\n", addr->prop.domain_data,
 102     addr->prop.localpart_data);
 103   }
 104
 105 return TRUE;
 106 }
 107
 108 /* End of rf_queue_add.c */