From ff78c835ad8aa8a7f00d237eaa4b3f369edcbe1d Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Mon, 13 Mar 2023 00:21:50 +0100
Subject: [PATCH] xgettext: In language JavaScript, avoid a crash.

This avoids a crash
"Assertion `phase2_pushback_length + j < SIZEOF (phase2_pushback)' failed.".

* gettext-tools/src/x-javascript.c (phase2_pushback): Increase size by 1.
* gettext-tools/tests/xgettext-javascript-12: New file.
* gettext-tools/tests/Makefile.am (TESTS): Add it.
---
 gettext-tools/src/x-javascript.c           |  4 ++--
 gettext-tools/tests/Makefile.am            |  2 +-
 gettext-tools/tests/xgettext-javascript-12 | 21 +++++++++++++++++++++
 3 files changed, 24 insertions(+), 3 deletions(-)
 create mode 100755 gettext-tools/tests/xgettext-javascript-12

diff --git a/gettext-tools/src/x-javascript.c b/gettext-tools/src/x-javascript.c
index 98710394d..815620861 100644
--- a/gettext-tools/src/x-javascript.c
+++ b/gettext-tools/src/x-javascript.c
@@ -215,8 +215,8 @@ phase1_ungetc (int c)
 
 static lexical_context_ty lexical_context;
 
-/* Maximum used, length of "<![CDATA[" tag minus one.  */
-static int phase2_pushback[8];
+/* Maximum used, length of "<![CDATA[" tag.  */
+static int phase2_pushback[9];
 static int phase2_pushback_length;
 
 /* Read the next Unicode UCS-4 character from the input file.  */
diff --git a/gettext-tools/tests/Makefile.am b/gettext-tools/tests/Makefile.am
index 6ca580bd7..fcb60d81d 100644
--- a/gettext-tools/tests/Makefile.am
+++ b/gettext-tools/tests/Makefile.am
@@ -114,7 +114,7 @@ TESTS = gettext-1 gettext-2 \
 	xgettext-javascript-1 xgettext-javascript-2 xgettext-javascript-3 \
 	xgettext-javascript-4 xgettext-javascript-5 xgettext-javascript-6 \
 	xgettext-javascript-7 xgettext-javascript-8 xgettext-javascript-9 \
-	xgettext-javascript-10 xgettext-javascript-11 \
+	xgettext-javascript-10 xgettext-javascript-11 xgettext-javascript-12 \
 	xgettext-javascript-stackovfl-1 xgettext-javascript-stackovfl-2 \
 	xgettext-javascript-stackovfl-3 xgettext-javascript-stackovfl-4 \
 	xgettext-javascript-stackovfl-5 xgettext-javascript-stackovfl-6 \
diff --git a/gettext-tools/tests/xgettext-javascript-12 b/gettext-tools/tests/xgettext-javascript-12
new file mode 100755
index 000000000..5f71647f4
--- /dev/null
+++ b/gettext-tools/tests/xgettext-javascript-12
@@ -0,0 +1,21 @@
+#! /bin/sh
+. "${srcdir=.}/init.sh"; path_prepend_ . ../src
+
+# Test JavaScript support: maximum needed for phase2_pushback.
+
+printf '<![CDATA0' > xg-js-12a.js
+printf '<![CDATA012345' > xg-js-12b.js
+
+: ${XGETTEXT=xgettext}
+LANGUAGE= LC_ALL=C ${XGETTEXT} --no-location -d xg-js-12.tmp xg-js-12a.js 2>xg-js-12.err
+result=$?
+cat xg-js-12.err
+test $result = 0 || Exit 1
+
+: ${XGETTEXT=xgettext}
+LANGUAGE= LC_ALL=C ${XGETTEXT} --no-location -d xg-js-12.tmp xg-js-12b.js 2>xg-js-12.err
+result=$?
+cat xg-js-12.err
+test $result = 0 || Exit 1
+
+exit 0
-- 
2.47.3