1 files changed, 68 insertions, 0 deletions
diff --git a/src/version.c b/src/version.c
new file mode 100644
index 0000000..118ebbd
--- /dev/null
+++ b/src/version.c
@@ -0,0 +1,68 @@
+/*************************************************
+*     Exim - an Internet mail transport agent    *
+*************************************************/
+
+/* Copyright (c) University of Cambridge 1995 - 2009 */
+/* Copyright (c) The Exim Maintainers 2010 - 2018 */
+/* See the file NOTICE for conditions of use and distribution. */
+
+/* Function for setting up the version string. */
+
+#include "exim.h"
+
+#include "version.h"
+
+
+/* The header file cnumber.h contains a single line containing the
+compilation number, making it easy to have it updated automatically.
+Hence the fudgery below to get the number turned into a string, since
+we can't use #include inside a macro argument list */
+
+void
+version_init(void)
+{
+static uschar cnumber_buffer[24];
+static uschar date_buffer[32];
+
+uschar today[20];
+uschar *version_cnumber_format;
+
+int cnumber =
+#include "cnumber.h"
+;
+
+/* The odd magic after each of these is so they can be easily found
+for automatic patching to standard values when running regression tests.
+The reason that version_cnumber_format isn't just written inline in the
+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 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, EXIM_BUILD_DATE_OVERRIDE, sizeof(date_buffer));
+
+#else
+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 */