Source: gnupg
Version: 1.4.19-6
Severity: wishlist
Tags: patch
User: reproducible-builds@lists.alioth.debian.org
Usertags: timestamps
X-Debbugs-Cc: reproducible-builds@lists.alioth.debian.org
Hi,
Whilst working on the "reproducible builds" effort [0], we noticed that
gnupg could not be built reproducibly.
The attached patch removes timestamps from the "yat2m" manpage
generator. Once applied, gnupg can be built reproducibly using our
reproducible toolchain.
[0] https://wiki.debian.org/ReproducibleBuilds
Regards,
--
,''`.
: :' : Chris Lamb
`. `'` la...@debian.org / chris-lamb.co.uk
`-
--- a/debian/patches/0010-yat2m-source-date-epoch.patch 1970-01-01
02:00:00.000000000 +0200
--- b/debian/patches/0010-yat2m-source-date-epoch.patch 2015-11-27
23:40:28.619516450 +0200
@@ -0,0 +1,45 @@
+--- gnupg-1.4.19.orig/doc/yat2m.c
++++ gnupg-1.4.19/doc/yat2m.c
+@@ -102,6 +102,7 @@
+ #include <assert.h>
+ #include <ctype.h>
+ #include <time.h>
++#include <limits.h>
+
+
+ #define PGM "yat2m"
+--- gnupg-1.4.19.orig/doc/yat2m.c
++++ gnupg-1.4.19/doc/yat2m.c
+@@ -324,6 +324,32 @@ isodatestring (void)
+ static char buffer[11+5];
+ struct tm *tp;
+ time_t atime = time (NULL);
++ char *endptr;
++ char *source_date_epoch = getenv("SOURCE_DATE_EPOCH");
++ unsigned long long epoch;
++
++ if (source_date_epoch) {
++ errno = 0;
++ epoch = strtoull(source_date_epoch, &endptr, 10);
++ if ((errno == ERANGE && (epoch == ULLONG_MAX || epoch == 0))
++ || (errno != 0 && epoch == 0)) {
++ fprintf(stderr, "Environment variable $SOURCE_DATE_EPOCH: strtoull:
%s\n", strerror(errno));
++ exit(EXIT_FAILURE);
++ }
++ if (endptr == source_date_epoch) {
++ fprintf(stderr, "Environment variable $SOURCE_DATE_EPOCH: No digits
were found: %s\n", endptr);
++ exit(EXIT_FAILURE);
++ }
++ if (*endptr != '\0') {
++ fprintf(stderr, "Environment variable $SOURCE_DATE_EPOCH: Trailing
garbage: %s\n", endptr);
++ exit(EXIT_FAILURE);
++ }
++ if (epoch > ULONG_MAX) {
++ fprintf(stderr, "Environment variable $SOURCE_DATE_EPOCH: value must be
smaller than or equal to: %lu but was found to be: %llu \n", ULONG_MAX ,epoch);
++ exit(EXIT_FAILURE);
++ }
++ atime = epoch;
++ }
+
+ if (atime < 0)
+ strcpy (buffer, "????" "-??" "-??");
--- a/debian/patches/series 2015-11-27 23:13:53.501216055 +0200
--- b/debian/patches/series 2015-11-27 23:42:12.260174185 +0200
@@ -7,3 +7,4 @@
0007-Pass-DBUS_SESSION_BUS_ADDRESS-for-gnome3.patch
0008-gpg-Silence-a-compiler-warning.patch
0009-po-Fix-Spanish-translation.patch
+0010-yat2m-source-date-epoch.patch
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