| 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 | |
| 9 | #include "../exim.h" |
| 10 | #include "rf_functions.h" |
| 11 | |
| 12 | |
| 13 | |
| 14 | /************************************************* |
| 15 | * Change domain in an address * |
| 16 | *************************************************/ |
| 17 | |
| 18 | /* When a router wants to change the address that is being routed, it is like a |
| 19 | redirection. We insert a new parent of the current address to hold the original |
| 20 | information, and change the data in the original address, which is now the |
| 21 | child. The child address is put onto the addr_new chain. Pick up the local part |
| 22 | from the "address" field so as to get it in external form - caseful, and with |
| 23 | any quoting retained. |
| 24 | |
| 25 | Arguments: |
| 26 | addr the address block |
| 27 | domain the new domain |
| 28 | rewrite TRUE if headers lines are to be rewritten |
| 29 | addr_new the new address chain |
| 30 | |
| 31 | Returns: nothing |
| 32 | */ |
| 33 | |
| 34 | void |
| 35 | rf_change_domain(address_item *addr, const uschar *domain, BOOL rewrite, |
| 36 | address_item **addr_new) |
| 37 | { |
| 38 | address_item *parent = store_get(sizeof(address_item)); |
| 39 | uschar *at = Ustrrchr(addr->address, '@'); |
| 40 | uschar *address = string_sprintf("%.*s@%s", at - addr->address, addr->address, |
| 41 | domain); |
| 42 | |
| 43 | DEBUG(D_route) debug_printf("domain changed to %s\n", domain); |
| 44 | |
| 45 | /* The current address item is made into the parent, and a new address is set |
| 46 | up in the old space. */ |
| 47 | |
| 48 | *parent = *addr; |
| 49 | |
| 50 | /* First copy in initializing values, to wipe out stuff such as the named |
| 51 | domain cache. Then copy over the propagating fields from the parent. Then set |
| 52 | up the new fields. */ |
| 53 | |
| 54 | *addr = address_defaults; |
| 55 | addr->prop = parent->prop; |
| 56 | |
| 57 | addr->address = address; |
| 58 | addr->unique = string_copy(address); |
| 59 | addr->parent = parent; |
| 60 | parent->child_count = 1; |
| 61 | |
| 62 | addr->next = *addr_new; |
| 63 | *addr_new = addr; |
| 64 | |
| 65 | /* Rewrite header lines if requested */ |
| 66 | |
| 67 | if (rewrite) |
| 68 | { |
| 69 | header_line *h; |
| 70 | DEBUG(D_route|D_rewrite) debug_printf("rewriting header lines\n"); |
| 71 | for (h = header_list; h != NULL; h = h->next) |
| 72 | { |
| 73 | header_line *newh = |
| 74 | rewrite_header(h, parent->domain, domain, |
| 75 | global_rewrite_rules, rewrite_existflags, TRUE); |
| 76 | if (newh != NULL) |
| 77 | { |
| 78 | h = newh; |
| 79 | header_rewritten = TRUE; |
| 80 | } |
| 81 | } |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | /* End of rf_change_domain.c */ |