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authorKarl Berry <karl@freefriends.org>2017-11-14 23:50:55 +0000
committerKarl Berry <karl@freefriends.org>2017-11-14 23:50:55 +0000
commite4a26cb4b77435863d8c9fd39b2dbc3c14651f73 (patch)
treee5a7748166810d04e9a7dc695271228d563314b3 /Build/source
parentd1612dc09aef759c48f8988eb5b8c12af6185435 (diff)
use only file base name, not cwd, when computing PDF ID (pdftex r782)
git-svn-id: svn://tug.org/texlive/trunk@45808 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source')
-rw-r--r--Build/source/texk/web2c/pdftexdir/ChangeLog8
-rw-r--r--Build/source/texk/web2c/pdftexdir/NEWS5
-rw-r--r--Build/source/texk/web2c/pdftexdir/utils.c25
3 files changed, 18 insertions, 20 deletions
diff --git a/Build/source/texk/web2c/pdftexdir/ChangeLog b/Build/source/texk/web2c/pdftexdir/ChangeLog
index 5e383f4bafa..5894ab1a4fb 100644
--- a/Build/source/texk/web2c/pdftexdir/ChangeLog
+++ b/Build/source/texk/web2c/pdftexdir/ChangeLog
@@ -1,3 +1,11 @@
+2017-11-14 Anders Kaseorg <andersk@mit.edu>
+
+ * utils.c (printID): Do not hash the current directory name into
+ the PDF ID field, since any variability in it leads to
+ non-reproducible builds.
+ pdftex mailing list, 2 Sep 2017 01:52:43
+ https://bugs.debian.org/874102
+
2017-10-17 Akira Kakuto <kakuto@fuk.kindai.ac.jp>
* pdftosrc.cc: Support also xpdf-3.04 if XPDF304 is defined.
diff --git a/Build/source/texk/web2c/pdftexdir/NEWS b/Build/source/texk/web2c/pdftexdir/NEWS
index 692eb588bb7..65ec164b9c0 100644
--- a/Build/source/texk/web2c/pdftexdir/NEWS
+++ b/Build/source/texk/web2c/pdftexdir/NEWS
@@ -1,6 +1,11 @@
+- changes:
+ - do not hash current directory into PDF ID, for more reproducible builds.
+
- bugfixes:
- \ifpdfprimitive now correctly returns true for "\ " (r45394).
+- source: support xpdf-4 by default, or xpdf-3.04,
+ or poppler-0.59.0 and newer, or poppler-0.57.0 and older, via #defines.
---------------------------------------------------------------
pdfTeX 3.14159265-2.6-1.40.18 (TeX Live 2017) (April 27, 2017)
- changes:
diff --git a/Build/source/texk/web2c/pdftexdir/utils.c b/Build/source/texk/web2c/pdftexdir/utils.c
index 67ff8e9db46..c93a878199d 100644
--- a/Build/source/texk/web2c/pdftexdir/utils.c
+++ b/Build/source/texk/web2c/pdftexdir/utils.c
@@ -1,5 +1,5 @@
/*
-Copyright 1996-2015 Han The Thanh, <thanh@pdftex.org>
+Copyright 1996-2017 Han The Thanh, <thanh@pdftex.org>
This file is part of pdfTeX.
@@ -697,9 +697,10 @@ void unescapehex(poolpointer in)
</blockquote>
This stipulates only that the two IDs must be identical when the file is
created and that they should be reasonably unique. Since it's difficult
- to get the file size at this point in the execution of pdfTeX and
- scanning the info dict is also difficult, we start with a simpler
- implementation using just the first two items.
+ to get the file size at this point in the execution of pdfTeX, scanning
+ the info dict is also difficult, and any variability in the current
+ directory name leads to non-reproducible builds, we start with a
+ simpler implementation using just the current time and the file name.
*/
void printID(strnumber filename)
{
@@ -707,29 +708,13 @@ void printID(strnumber filename)
md5_byte_t digest[16];
char id[64];
char *file_name;
- char pwd[4096];
/* start md5 */
md5_init(&state);
/* get the time */
initstarttime();
md5_append(&state, (const md5_byte_t *) start_time_str, strlen(start_time_str));
/* get the file name */
- if (getcwd(pwd, sizeof(pwd)) == NULL)
- pdftex_fail("getcwd() failed (%s), path too long?", strerror(errno));
-#ifdef WIN32
- {
- char *p;
- for (p = pwd; *p; p++) {
- if (*p == '\\')
- *p = '/';
- else if (IS_KANJI(p))
- p++;
- }
- }
-#endif
file_name = makecstring(filename);
- md5_append(&state, (const md5_byte_t *) pwd, strlen(pwd));
- md5_append(&state, (const md5_byte_t *) "/", 1);
md5_append(&state, (const md5_byte_t *) file_name, strlen(file_name));
/* finish md5 */
md5_finish(&state, digest);