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-rw-r--r--src/routers/accept.c142
1 files changed, 142 insertions, 0 deletions
diff --git a/src/routers/accept.c b/src/routers/accept.c
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+/*************************************************
+* Exim - an Internet mail transport agent *
+*************************************************/
+
+/* Copyright (c) University of Cambridge 1995 - 2018 */
+/* Copyright (c) The Exim Maintainers 2020 */
+/* See the file NOTICE for conditions of use and distribution. */
+
+
+#include "../exim.h"
+#include "rf_functions.h"
+#include "accept.h"
+
+
+/* Options specific to the accept router. Because some compilers do not like
+empty declarations ("undefined" in the Standard) we put in a dummy value. */
+
+optionlist accept_router_options[] = {
+ { "", opt_hidden, {NULL} }
+};
+
+/* Size of the options list. An extern variable has to be used so that its
+address can appear in the tables drtables.c. */
+
+int accept_router_options_count =
+ sizeof(accept_router_options)/sizeof(optionlist);
+
+/* Default private options block for the accept router. Again, a dummy
+value is used. */
+
+accept_router_options_block accept_router_option_defaults = {
+ NULL /* dummy */
+};
+
+
+#ifdef MACRO_PREDEF
+
+/* Dummy entries */
+void accept_router_init(router_instance *rblock) {}
+int accept_router_entry(router_instance *rblock, address_item *addr,
+ struct passwd *pw, int verify, address_item **addr_local,
+ address_item **addr_remote, address_item **addr_new,
+ address_item **addr_succeed) {return 0;}
+
+#else /*!MACRO_PREDEF*/
+
+
+
+/*************************************************
+* Initialization entry point *
+*************************************************/
+
+/* Called for each instance, after its options have been read, to enable
+consistency checks to be done, or anything else that needs to be set up. */
+
+void accept_router_init(router_instance *rblock)
+{
+/*
+accept_router_options_block *ob =
+ (accept_router_options_block *)(rblock->options_block);
+*/
+
+/* By default, log deliveries via this router as local deliveries. We can't
+just leave it as TRUE_UNSET, because the global default is FALSE. */
+
+if (rblock->log_as_local == TRUE_UNSET) rblock->log_as_local = TRUE;
+}
+
+
+
+/*************************************************
+* Main entry point *
+*************************************************/
+
+/* See local README for interface description. This router returns:
+
+DEFER
+ . verifying the errors address caused a deferment or a big disaster such
+ as an expansion failure (rf_get_errors_address)
+ . expanding a headers_{add,remove} string caused a deferment or another
+ expansion error (rf_get_munge_headers)
+ . a problem in rf_get_transport: no transport when one is needed;
+ failed to expand dynamic transport; failed to find dynamic transport
+ . failure to expand or find a uid/gid (rf_get_ugid via rf_queue_add)
+
+OK
+ added address to addr_local or addr_remote, as appropriate for the
+ type of transport
+*/
+
+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 */
+ 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 */
+ address_item **addr_succeed) /* put old address here on success */
+{
+/*
+accept_router_options_block *ob =
+ (accept_router_options_block *)(rblock->options_block);
+*/
+int rc;
+uschar *errors_to;
+uschar *remove_headers;
+header_line *extra_headers;
+
+addr_new = addr_new; /* Keep picky compilers happy */
+addr_succeed = addr_succeed;
+
+DEBUG(D_route) debug_printf("%s router called for %s\n domain = %s\n",
+ rblock->name, addr->address, addr->domain);
+
+/* Set up the errors address, if any. */
+
+rc = rf_get_errors_address(addr, rblock, verify, &errors_to);
+if (rc != OK) return rc;
+
+/* Set up the additional and removable headers for the address. */
+
+rc = rf_get_munge_headers(addr, rblock, &extra_headers, &remove_headers);
+if (rc != OK) return rc;
+
+/* Set the transport and accept the address; update its errors address and
+header munging. Initialization ensures that there is a transport except when
+verifying. */
+
+if (!rf_get_transport(rblock->transport_name, &(rblock->transport),
+ addr, rblock->name, NULL)) return DEFER;
+
+addr->transport = rblock->transport;
+addr->prop.errors_address = errors_to;
+addr->prop.extra_headers = extra_headers;
+addr->prop.remove_headers = remove_headers;
+
+return rf_queue_add(addr, addr_local, addr_remote, rblock, pw)? OK : DEFER;
+}
+
+#endif /*!MACRO_PREDEF*/
+/* End of routers/accept.c */