X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/51894f20e0c03113b4c4e07898ac5e955b21ec41..HEAD:/src/src/local_scan.h

diff --git a/src/src/local_scan.h b/src/src/local_scan.h
index 153b4cb3c..afbd22dbc 100644
--- a/src/src/local_scan.h
+++ b/src/src/local_scan.h
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) The Exim Maintainers 2020 - 2023 */
+/* Copyright (c) The Exim Maintainers 2020 - 2024 */
 /* Copyright (c) University of Cambridge 1995 - 2020 */
 /* See the file NOTICE for conditions of use and distribution. */
 /* SPDX-License-Identifier: GPL-2.0-or-later */
@@ -22,6 +22,8 @@ Coders of dlfunc routines should read the notes on tainting at the start of
 store.c
 */
 
+#ifndef LOCAL_SCAN_H
+#define LOCAL_SCAN_H
 
 /* Some basic types that make some things easier, the Exim configuration
 settings, and the store functions. */
@@ -153,9 +155,9 @@ field is always NULL except for one_time aliases that had errors_to on the
 routers that generated them. */
 
 typedef struct recipient_item {
-  uschar *address;              /* the recipient address */
+  const uschar *address;        /* the recipient address */
   int     pno;                  /* parent number for "one_time" alias, or -1 */
-  uschar *errors_to;            /* the errors_to address or NULL */
+  const uschar *errors_to;      /* the errors_to address or NULL */
   uschar *orcpt;                /* DSN orcpt */
   int     dsn_flags;            /* DSN flags */
 #ifdef EXPERIMENTAL_BRIGHTMAIL
@@ -181,7 +183,7 @@ extern uschar *message_id;             /* Internal id of message being handled *
 extern uschar *received_protocol;      /* Name of incoming protocol */
 extern int     recipients_count;       /* Number of recipients */
 extern recipient_item *recipients_list;/* List of recipient addresses */
-extern unsigned char *sender_address;  /* Sender address */
+extern const unsigned char *sender_address;	/* Sender address */
 extern uschar *sender_host_address;    /* IP address of sender, as chars */
 extern uschar *sender_host_authenticated; /* Name of authentication mechanism */
 extern uschar *sender_host_name;       /* Host name from lookup */
@@ -207,8 +209,8 @@ extern int     lss_match_domain(uschar *, uschar *);
 extern int     lss_match_local_part(uschar *, uschar *, BOOL);
 extern int     lss_match_address(uschar *, uschar *, BOOL);
 extern int     lss_match_host(uschar *, uschar *, uschar *);
-extern void    receive_add_recipient(uschar *, int);
-extern BOOL    receive_remove_recipient(uschar *);
+extern void    receive_add_recipient(const uschar *, int);
+extern BOOL    receive_remove_recipient(const uschar *);
 extern uschar *rfc2047_decode(uschar *, BOOL, const uschar *, int, int *,
 			      uschar **);
 extern int     smtp_fflush(void);
@@ -247,4 +249,5 @@ extern pid_t    child_open_exim2_function(int *, uschar *, uschar *, const uscha
 extern pid_t    child_open_function(uschar **, uschar **, int, int *, int *, BOOL, const uschar *);
 #endif
 
+#endif	/* whole file */
 /* End of local_scan.h */