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authorKarl Berry <karl@freefriends.org>2018-10-23 22:43:58 +0000
committerKarl Berry <karl@freefriends.org>2018-10-23 22:43:58 +0000
commit68750bb5ebfaf77887385824819f579578b95e70 (patch)
tree46559aa34f9f1e6fd54f177d3f3e711deaee1545 /Build/source/texk/web2c/pdftexdir
parent84913babd1c16867f2a746fa23f10fe1ab10c329 (diff)
avoid possible strlen on null ptr
git-svn-id: svn://tug.org/texlive/trunk@48980 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/web2c/pdftexdir')
-rw-r--r--Build/source/texk/web2c/pdftexdir/ChangeLog6
-rw-r--r--Build/source/texk/web2c/pdftexdir/writet1.c6
2 files changed, 10 insertions, 2 deletions
diff --git a/Build/source/texk/web2c/pdftexdir/ChangeLog b/Build/source/texk/web2c/pdftexdir/ChangeLog
index e0a7b5e0ce1..346d7a48bfd 100644
--- a/Build/source/texk/web2c/pdftexdir/ChangeLog
+++ b/Build/source/texk/web2c/pdftexdir/ChangeLog
@@ -1,3 +1,9 @@
+2018-10-24 Karl Berry <karl@tug.org>
+
+ * writet1.c (t1_check_unusual_charstring): don't call
+ strlen(t1_buf_array) if it is null.
+ From Luigi, 22 Oct 2018 22:43:03.
+
2018-10-22 Akira Kakuto <kakuto@fuk.kindai.ac.jp>
* pdftosrc-newpoppler.cc: Add a comment that it works upto
diff --git a/Build/source/texk/web2c/pdftexdir/writet1.c b/Build/source/texk/web2c/pdftexdir/writet1.c
index 8cfc2616ca3..079ac369d7d 100644
--- a/Build/source/texk/web2c/pdftexdir/writet1.c
+++ b/Build/source/texk/web2c/pdftexdir/writet1.c
@@ -1,5 +1,5 @@
/*
-Copyright 1996-2014 Han The Thanh <thanh@pdftex.org>
+Copyright 1996-2018 Han The Thanh <thanh@pdftex.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -1598,7 +1598,9 @@ static void t1_check_unusual_charstring(void)
*(strend(t1_buf_array) - 1) = ' ';
t1_getline();
- alloc_array(t1_buf, strlen(t1_line_array) + strlen(t1_buf_array) + 1, T1_BUF_SIZE);
+ alloc_array(t1_buf, strlen(t1_line_array)
+ + (t1_buf_array ? strlen(t1_buf_array) + 1 : 0),
+ T1_BUF_SIZE);
strcat(t1_buf_array, t1_line_array);
alloc_array(t1_line, strlen(t1_buf_array) + 1, T1_BUF_SIZE);
strcpy(t1_line_array, t1_buf_array);