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authorKarl Berry <karl@freefriends.org>2019-12-17 19:24:59 +0000
committerKarl Berry <karl@freefriends.org>2019-12-17 19:24:59 +0000
commit4c124f70e22deecce385bd0164cabbc6e1946fe0 (patch)
treed99dfcf4c332926784b2fba80f83698b6b85ad9c /Build/source/texk
parent10a7ffb1a8491cbb46e496c3aad5ef20a8cb4217 (diff)
avoid closing already-closed \openout file
git-svn-id: svn://tug.org/texlive/trunk@53155 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk')
-rw-r--r--Build/source/texk/web2c/ChangeLog5
-rw-r--r--Build/source/texk/web2c/Makefile.in4
-rw-r--r--Build/source/texk/web2c/am/texmf.am8
-rwxr-xr-xBuild/source/texk/web2c/tests/tex-closeout.test19
-rw-r--r--Build/source/texk/web2c/tex.ch11
5 files changed, 41 insertions, 6 deletions
diff --git a/Build/source/texk/web2c/ChangeLog b/Build/source/texk/web2c/ChangeLog
index dcf4334008a..f43e8c77bb4 100644
--- a/Build/source/texk/web2c/ChangeLog
+++ b/Build/source/texk/web2c/ChangeLog
@@ -1,5 +1,10 @@
2019-12-17 Karl Berry <karl@freefriends.org>
+ * tex.ch (out_what [1374]): always set write_open[j]:=false
+ if we a_close(write_file[j]), not worrying about the subtype.
+ * tests/tex-closeout.test: new test.
+ * am/texmf.am (tex_tests): add it.
+
* mftraptest.test,
triptest.test: rm the .base/.fmt file before remaking it,
so we can't find one left over from a previous run.
diff --git a/Build/source/texk/web2c/Makefile.in b/Build/source/texk/web2c/Makefile.in
index 492d85bcc89..bd3c7cd3123 100644
--- a/Build/source/texk/web2c/Makefile.in
+++ b/Build/source/texk/web2c/Makefile.in
@@ -3585,7 +3585,7 @@ tex_ch_srcs = \
# TeX tests
#
-tex_tests = triptest.test tests/write18-quote-test.pl
+tex_tests = triptest.test tests/write18-quote-test.pl tests/tex-closeout.test
call_mf_CPPFLAGS = -DEXEPROG=\"mf.exe\"
nodist_call_mf_SOURCES = callexe.c
call_mf_LDADD =
@@ -19068,7 +19068,7 @@ tex-tangle: tangle$(EXEEXT) tex.web tex-final.ch tangle-sh
tex-final.ch: tie$(EXEEXT) $(tex_ch_srcs)
$(tie_c) $(tex_ch_srcs)
triptest.log: tex$(EXEEXT) dvitype$(EXEEXT) pltotf$(EXEEXT) tftopl$(EXEEXT)
-tests/write18-quote-test.log: tex$(EXEEXT)
+tests/write18-quote-test.log tests/tex-closeout.test: tex$(EXEEXT)
trip.diffs: tex$(EXEEXT) dvitype$(EXEEXT) pltotf$(EXEEXT) tftopl$(EXEEXT)
$(triptrap_diffs) $@
diff --git a/Build/source/texk/web2c/am/texmf.am b/Build/source/texk/web2c/am/texmf.am
index 2ec67cbd27a..cb8dde2b4ec 100644
--- a/Build/source/texk/web2c/am/texmf.am
+++ b/Build/source/texk/web2c/am/texmf.am
@@ -1,6 +1,8 @@
+## $Id$
## texk/web2c/am/texmf.am: Makefile fragment for TeX and MF.
##
-## Copyright (C) 2009-2015 Peter Breitenlohner <tex-live@tug.org>
+## Copyright 2015-2019 Karl Berry <tex-live@tug.org>
+## Copyright 2009-2015 Peter Breitenlohner <tex-live@tug.org>
## You may freely use, modify and/or distribute this file.
## Common for MF and TeX
@@ -73,9 +75,9 @@ DISTCLEANFILES += $(nodist_tex_SOURCES) tex-final.ch tex-web2c \
# TeX tests
#
-tex_tests = triptest.test tests/write18-quote-test.pl
+tex_tests = triptest.test tests/write18-quote-test.pl tests/tex-closeout.test
triptest.log: tex$(EXEEXT) dvitype$(EXEEXT) pltotf$(EXEEXT) tftopl$(EXEEXT)
-tests/write18-quote-test.log: tex$(EXEEXT)
+tests/write18-quote-test.log tests/tex-closeout.test: tex$(EXEEXT)
EXTRA_DIST += $(tex_tests)
EXTRA_DIST += tests/write18-quote.tex
if TEX
diff --git a/Build/source/texk/web2c/tests/tex-closeout.test b/Build/source/texk/web2c/tests/tex-closeout.test
new file mode 100755
index 00000000000..c510313fa61
--- /dev/null
+++ b/Build/source/texk/web2c/tests/tex-closeout.test
@@ -0,0 +1,19 @@
+#! /bin/sh -vx
+# $Id$
+# Copyright 2019 Karl Berry <tex-live@tug.org>
+# You may freely use, modify and/or distribute this file.
+
+# in case we're invoked standalone instead of from make.
+test -z "$srcdir" && srcdir=`cd \`dirname $0\`/.. && pwd` # web2c/
+TEXMFCNF=$srcdir/../kpathsea; export TEXMFCNF
+
+# Resulted in a double free with glibc on x86_64-linux.
+fail=2
+./tex -ini '\batchmode \immediate\openout1=b \openout1=/tmp/a \end'
+
+# If TeX crashed, we won't get here. The exit status will be something
+# like 134 on GNU/Linux, but we don't want to rely on that.
+fail=0
+
+exit $fail
+
diff --git a/Build/source/texk/web2c/tex.ch b/Build/source/texk/web2c/tex.ch
index 6c4fadf8357..a45b99198c2 100644
--- a/Build/source/texk/web2c/tex.ch
+++ b/Build/source/texk/web2c/tex.ch
@@ -4381,7 +4381,16 @@ var j:small_number; {write stream number}
@!old_setting:0..max_selector;
@z
-@x [53.1374] Disallow certain \openout filenames, and log results.
+@x [53.1374]
+ else begin if write_open[j] then a_close(write_file[j]);
+ if subtype(p)=close_node then write_open[j]:=false
+@y
+ else begin if write_open[j] then begin a_close(write_file[j]);
+ write_open[j]:=false; end;
+ if subtype(p)=close_node then do_nothing {already closed}
+@z
+
+@x [still 53.1374] Disallow certain \openout filenames, and log results.
while not a_open_out(write_file[j]) do
prompt_file_name("output file name",".tex");
write_open[j]:=true;