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authordkf <donal.k.fellows@manchester.ac.uk>2013-12-30 10:24:20 (GMT)
committerdkf <donal.k.fellows@manchester.ac.uk>2013-12-30 10:24:20 (GMT)
commitea905988fa8cfecafe48a591a899f1275d7d3ca3 (patch)
tree9dd08e96712d0bbeb26b46b3c2ac5d1312d63be7 /compat/zlib/contrib/puff/puff.c
parent48d8cf61b7fd0af160956618fdf9e4cbccebf078 (diff)
parent1749e8cdf33e8232f22acc08f9ce4301b00ba7eb (diff)
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merge main working branch
Diffstat (limited to 'compat/zlib/contrib/puff/puff.c')
-rw-r--r--compat/zlib/contrib/puff/puff.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/compat/zlib/contrib/puff/puff.c b/compat/zlib/contrib/puff/puff.c
index df8470c..ba58483 100644
--- a/compat/zlib/contrib/puff/puff.c
+++ b/compat/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 */