From e90fcc54809db2591dc083f43ef54c6ec8c60847 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 18:16:13 +0200 Subject: Adding upstream version 4.96. Signed-off-by: Daniel Baumann --- src/routers/rf_change_domain.c | 85 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100644 src/routers/rf_change_domain.c (limited to 'src/routers/rf_change_domain.c') diff --git a/src/routers/rf_change_domain.c b/src/routers/rf_change_domain.c new file mode 100644 index 0000000..d7c9c1c --- /dev/null +++ b/src/routers/rf_change_domain.c @@ -0,0 +1,85 @@ +/************************************************* +* Exim - an Internet mail transport agent * +*************************************************/ + +/* Copyright (c) The Exim Maintainers 2022 */ +/* Copyright (c) University of Cambridge 1995 - 2018 */ +/* See the file NOTICE for conditions of use and distribution. */ + + +#include "../exim.h" +#include "rf_functions.h" + + + +/************************************************* +* Change domain in an address * +*************************************************/ + +/* When a router wants to change the address that is being routed, it is like a +redirection. We insert a new parent of the current address to hold the original +information, and change the data in the original address, which is now the +child. The child address is put onto the addr_new chain. Pick up the local part +from the "address" field so as to get it in external form - caseful, and with +any quoting retained. + +Arguments: + addr the address block + domain the new domain + rewrite TRUE if headers lines are to be rewritten + addr_new the new address chain + +Returns: nothing +*/ + +void +rf_change_domain(address_item *addr, const uschar *domain, BOOL rewrite, + address_item **addr_new) +{ +address_item * parent = store_get(sizeof(address_item), GET_UNTAINTED); +uschar * at = Ustrrchr(addr->address, '@'); +uschar * address = string_sprintf("%.*s@%s", + (int)(at - addr->address), addr->address, domain); + +DEBUG(D_route) debug_printf("domain changed to %s\n", domain); + +/* The current address item is made into the parent, and a new address is set +up in the old space. */ + +*parent = *addr; + +/* First copy in initializing values, to wipe out stuff such as the named +domain cache. Then copy over the propagating fields from the parent. Then set +up the new fields. */ + +*addr = address_defaults; +addr->prop = parent->prop; + +addr->address = address; +addr->unique = string_copy(address); +addr->parent = parent; +parent->child_count = 1; + +addr->next = *addr_new; +*addr_new = addr; + +/* Rewrite header lines if requested */ + +if (rewrite) + { + DEBUG(D_route|D_rewrite) debug_printf("rewriting header lines\n"); + for (header_line * h = header_list; h != NULL; h = h->next) + { + header_line *newh = + rewrite_header(h, parent->domain, domain, + global_rewrite_rules, rewrite_existflags, TRUE); + if (newh) + { + h = newh; + f.header_rewritten = TRUE; + } + } + } +} + +/* End of rf_change_domain.c */ -- cgit v1.2.3