constification

[exim.git] / src / src / spool_in.c

diff --git a/src/src/spool_in.c b/src/src/spool_in.c
index 1fcff954f76c53c23288b9e6fb9b8460e7310c9c..3e3b246abd2161fedbb3552726efd3342a614b91 100644 (file)
--- a/src/src/spool_in.c
+++ b/src/src/spool_in.c
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) The Exim Maintainers 2020 - 2022 */
+/* Copyright (c) The Exim Maintainers 2020 - 2023 */
 /* Copyright (c) University of Cambridge 1995 - 2018 */
 /* See the file NOTICE for conditions of use and distribution. */
 /* SPDX-License-Identifier: GPL-2.0-or-later */
@@ -36,7 +36,7 @@ Side effect: message_subdir is set for the (possibly split) spool directory
 */
 
 int
-spool_open_datafile(uschar * id)
+spool_open_datafile(const uschar * id)
 {
 struct stat statbuf;
 flock_t lock_data;
@@ -456,9 +456,12 @@ n = Ustrlen(big_buffer);
 if (n < 3 || big_buffer[0] != '<' || big_buffer[n-2] != '>')
   goto SPOOL_FORMAT_ERROR;
 
-sender_address = store_get(n-2, GET_TAINTED);
-Ustrncpy(sender_address, big_buffer+1, n-3);
-sender_address[n-3] = 0;
+ {
+  uschar * s = store_get(n-2, GET_TAINTED);
+  Ustrncpy(s, big_buffer+1, n-3);
+  s[n-3] = '\0';
+  sender_address = s;
+ }
 
 where = US"time";
 if (Ufgets(big_buffer, big_buffer_size, fp) == NULL) goto SPOOL_READ_ERROR;