X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/951a7bd9b6971ec295117bcbc4d512528a70070d..HEAD:/src/src/version.c

diff --git a/src/src/version.c b/src/src/version.c
index 9d64075d7..e40b38fb8 100644
--- a/src/src/version.c
+++ b/src/src/version.c
@@ -1,18 +1,17 @@
-/* $Cambridge: exim/src/src/version.c,v 1.24 2007/08/30 14:37:07 ph10 Exp $ */
-
 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2007 */
+/* Copyright (c) University of Cambridge 1995 - 2009 */
+/* Copyright (c) The Exim Maintainers 2010 - 2018 */
 /* See the file NOTICE for conditions of use and distribution. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /* Function for setting up the version string. */
 
 #include "exim.h"
 
-
-#define THIS_VERSION  "4.68"
+#include "version.h"
 
 
 /* The header file cnumber.h contains a single line containing the
@@ -26,7 +25,6 @@ version_init(void)
 static uschar cnumber_buffer[24];
 static uschar date_buffer[32];
 
-uschar today[20];
 uschar *version_cnumber_format;
 
 int cnumber =
@@ -41,19 +39,33 @@ sprintf() call is the gcc -Wall warns about a \0 in a format string. */
 version_cnumber = cnumber_buffer;
 version_cnumber_format = US"%d\0<<eximcnumber>>";
 sprintf(CS version_cnumber, CS version_cnumber_format, cnumber);
-version_string = US THIS_VERSION "\0<<eximversion>>";
-
-Ustrcpy(today, __DATE__);
-if (today[4] == ' ') today[4] = '0';
-today[3] = today[6] = '-';
+version_string = US EXIM_VERSION_STR "\0<<eximversion>>";
 
+#ifdef EXIM_BUILD_DATE_OVERRIDE
+/* Reproducible build support; build tooling should have given us something looking like
+ * "25-Feb-2017 20:15:40" in EXIM_BUILD_DATE_OVERRIDE based on $SOURCE_DATE_EPOCH in environ
+ * per <https://reproducible-builds.org/specs/source-date-epoch/>
+ */
 version_date = date_buffer;
 version_date[0] = 0;
-Ustrncat(version_date, today+4, 3);
-Ustrncat(version_date, today, 4);
-Ustrncat(version_date, today+7, 4);
-Ustrcat(version_date, " ");
-Ustrcat(version_date, __TIME__);
+Ustrncat(version_date, EXIM_BUILD_DATE_OVERRIDE, sizeof(date_buffer));
+
+#else
+ {
+  uschar today[20];
+  Ustrcpy(today, US __DATE__);
+  if (today[4] == ' ') today[4] = '0';
+  today[3] = today[6] = '-';
+
+  version_date = date_buffer;
+  version_date[0] = 0;
+  Ustrncat(version_date, today+4, 3);
+  Ustrncat(version_date, today, 4);
+  Ustrncat(version_date, today+7, 4);
+  Ustrcat(version_date, US" ");
+  Ustrcat(version_date, US __TIME__);
+ }
+#endif
 }
 
 /* End of version.c */