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authormarha <marha@users.sourceforge.net>2013-11-12 13:48:44 +0100
committermarha <marha@users.sourceforge.net>2013-11-12 13:51:05 +0100
commit4bdf8409331f44417c3622bc5ec0e42c0e68afb6 (patch)
treeee8a24a92b267f48542eaed1968266a76e945a27 /zlib/contrib/puff/puff.c
parentb73c544c61712f7bd57f3c9a0f6046481f58038b (diff)
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Updated zlib to 1.2.8
Diffstat (limited to 'zlib/contrib/puff/puff.c')
-rw-r--r--zlib/contrib/puff/puff.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/zlib/contrib/puff/puff.c b/zlib/contrib/puff/puff.c
index df8470c93..ba58483d5 100644
--- a/zlib/contrib/puff/puff.c
+++ b/zlib/contrib/puff/puff.c
@@ -1,8 +1,8 @@
/*
* puff.c
- * Copyright (C) 2002-2010 Mark Adler
+ * Copyright (C) 2002-2013 Mark Adler
* For conditions of distribution and use, see copyright notice in puff.h
- * version 2.2, 25 Apr 2010
+ * version 2.3, 21 Jan 2013
*
* puff.c is a simple inflate written to be an unambiguous way to specify the
* deflate format. It is not written for speed but rather simplicity. As a
@@ -76,6 +76,7 @@
* - Move NIL to puff.h
* - Allow incomplete code only if single code length is 1
* - Add full code coverage test to Makefile
+ * 2.3 21 Jan 2013 - Check for invalid code length codes in dynamic blocks
*/
#include <setjmp.h> /* for setjmp(), longjmp(), and jmp_buf */
@@ -704,6 +705,8 @@ local int dynamic(struct state *s)
int len; /* last length to repeat */
symbol = decode(s, &lencode);
+ if (symbol < 0)
+ return symbol; /* invalid symbol */
if (symbol < 16) /* length in 0..15 */
lengths[index++] = symbol;
else { /* repeat instruction */