[master] Imported from libpng-1.6.33.tar
diff --git a/ANNOUNCE b/ANNOUNCE
index 3cbe5a9..8b510ab 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,4 +1,4 @@
-Libpng 1.6.32 - August 24, 2017
+Libpng 1.6.33 - September 28, 2017
This is a public release of libpng, intended for use in production codes.
@@ -7,79 +7,53 @@
Source files with LF line endings (for Unix/Linux) and with a
"configure" script
- libpng-1.6.32.tar.xz (LZMA-compressed, recommended)
- libpng-1.6.32.tar.gz
+ libpng-1.6.33.tar.xz (LZMA-compressed, recommended)
+ libpng-1.6.33.tar.gz
Source files with CRLF line endings (for Windows), without the
"configure" script
- lpng1632.7z (LZMA-compressed, recommended)
- lpng1632.zip
+ lpng1633.7z (LZMA-compressed, recommended)
+ lpng1633.zip
Other information:
- libpng-1.6.32-README.txt
- libpng-1.6.32-LICENSE.txt
- libpng-1.6.32-*.asc (armored detached GPG signatures)
+ libpng-1.6.33-README.txt
+ libpng-1.6.33-LICENSE.txt
+ libpng-1.6.33-*.asc (armored detached GPG signatures)
-Changes since the last public release (1.6.31):
- Avoid possible NULL dereference in png_handle_eXIf when benign_errors
- are allowed. Avoid leaking the input buffer "eXIf_buf".
- Eliminated png_ptr->num_exif member from pngstruct.h and added num_exif
- to arguments for png_get_eXIf() and png_set_eXIf().
- Added calls to png_handle_eXIf(() in pngread.c and png_write_eXIf() in
- pngwrite.c, and made various other fixes to png_write_eXIf().
- Changed name of png_get_eXIF and png_set_eXIf() to png_get_eXIf_1() and
- png_set_eXIf_1(), respectively, to avoid breaking API compatibility
- with libpng-1.6.31.
- Updated contrib/libtests/pngunknown.c with eXIf chunk.
- Initialized btoa[] in pngstest.c
- Stop memory leak when returning from png_handle_eXIf() with an error
- (Bug report from the OSS-fuzz project).
- Replaced local eXIf_buf with info_ptr-eXIf_buf in png_handle_eXIf().
- Update libpng.3 and libpng-manual.txt about eXIf functions.
- Restored png_get_eXIf() and png_set_eXIf() to maintain API compatability.
- Removed png_get_eXIf_1() and png_set_eXIf_1().
- Check length of all chunks except IDAT against user limit to fix an
- OSS-fuzz issue.
- Check length of IDAT against maximum possible IDAT size, accounting
- for height, rowbytes, interlacing and zlib/deflate overhead.
- Restored png_get_eXIf_1() and png_set_eXIf_1(), because strlen(eXIf_buf)
- does not work (the eXIf chunk data can contain zeroes).
- Require cmake-2.8.8 in CMakeLists.txt. Revised symlink creation,
- no longer using deprecated cmake LOCATION feature (Clifford Yapp).
- Fixed five-byte error in the calculation of IDAT maximum possible size.
- Moved chunk-length check into a png_check_chunk_length() private
- function (Suggested by Max Stepin).
- Moved bad pngs from tests to contrib/libtests/crashers
- Moved testing of bad pngs into a separate tests/pngtest-badpngs script
- Added the --xfail (expected FAIL) option to pngtest.c. It writes XFAIL
- in the output but PASS for the libpng test.
- Require cmake-3.0.2 in CMakeLists.txt (Clifford Yapp).
- Fix "const" declaration info_ptr argument to png_get_eXIf_1() and the
- num_exif argument to png_get_eXIf_1() (Github Issue 171).
- Added "eXIf" to "chunks_to_ignore[]" in png_set_keep_unknown_chunks().
- Added huge_IDAT.png and empty_ancillary_chunks.png to testpngs/crashers.
- Make pngtest --strict, --relax, --xfail options imply -m (multiple).
- Removed unused chunk_name parameter from png_check_chunk_length().
- Relocated setting free_me for eXIf data, to stop an OSS-fuzz leak.
- Initialize profile_header[] in png_handle_iCCP() to fix OSS-fuzz issue.
- Initialize png_ptr->row_buf[0] to 255 in png_read_row() to fix OSS-fuzz UMR.
- Attempt to fix a UMR in png_set_text_2() to fix OSS-fuzz issue.
- Increase minimum zlib stream from 9 to 14 in png_handle_iCCP(), to account
- for the minimum 'deflate' stream, and relocate the test to a point
- after the keyword has been read.
- Check that the eXIf chunk has at least 2 bytes and begins with "II" or "MM".
- Added a set of "huge_xxxx_chunk.png" files to contrib/testpngs/crashers,
- one for each known chunk type, with length = 2GB-1.
- Check for 0 return from png_get_rowbytes() and added some (size_t) typecasts
- in contrib/pngminus/*.c to stop some Coverity issues (162705, 162706,
- and 162707).
- Renamed chunks in contrib/testpngs/crashers to avoid having files whose
- names differ only in case; this causes problems with some platforms
- (github issue #172).
- Added contrib/oss-fuzz directory which contains files used by the oss-fuzz
- project (https://github.com/google/oss-fuzz/tree/master/projects/libpng).
+Changes since the last public release (1.6.32):
+ Added PNGMINUS_UNUSED macro to contrib/pngminus/p*.c and added missing
+ parenthesis in contrib/pngminus/pnm2png.c (bug report by Christian Hesse).
+ Fixed off-by-one error in png_do_check_palette_indexes() (Bug report
+ by Mick P., Source Forge Issue #269).
+ Initialize png_handler.row_ptr in contrib/oss-fuzz/libpng_read_fuzzer.cc
+ to fix shortlived oss-fuzz issue 3234.
+ Compute a larger limit on IDAT because some applications write a deflate
+ buffer for each row (Bug report by Andrew Church).
+ Use current date (DATE) instead of release-date (RDATE) in last
+ changed date of contrib/oss-fuzz files.
+ Enabled ARM support in CMakeLists.txt (Bernd Kuhls).
+ Fixed incorrect typecast of some arguments to png_malloc() and
+ png_calloc() that were png_uint_32 instead of png_alloc_size_t
+ (Bug report by "irwir" in Github libpng issue #175).
+ Use pnglibconf.h.prebuilt when building for ANDROID with cmake (Github
+ issue 162, by rcdailey).
+ Initialize memory allocated by png_inflate to zero, using memset, to
+ stop an oss-fuzz "use of uninitialized value" detection in png_set_text_2()
+ due to truncated iTXt or zTXt chunk.
+ Initialize memory allocated by png_read_buffer to zero, using memset, to
+ stop an oss-fuzz "use of uninitialized value" detection in
+ png_icc_check_tag_table() due to truncated iCCP chunk.
+ Removed a redundant test (suggested by "irwir" in Github issue #180).
+ Added an interlaced version of each file in contrib/pngsuite.
+ Relocate new memset() call in pngrutil.c.
+ Removed more redundant tests (suggested by "irwir" in Github issue #180).
+ Add support for loading images with associated alpha in the Simplified
+ API (Samuel Williams).
+ Revert contrib/oss-fuzz/libpng_read_fuzzer.cc to libpng-1.6.32 state.
+ Initialize png_handler.row_ptr in contrib/oss-fuzz/libpng_read_fuzzer.cc
+ Add end_info structure and png_read_end() to the libpng fuzzer.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit
diff --git a/CHANGES b/CHANGES
index 14e60dd..4238bf0 100644
--- a/CHANGES
+++ b/CHANGES
@@ -833,7 +833,7 @@
Removed the new PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT modes
which are no longer used.
Eliminated the three new members of png_text when PNG_LEGACY_SUPPORTED is
- defined or when neither PNG_READ_iTXt_SUPPORTED nor PNG_WRITE_iTXT_SUPPORTED
+ defined or when neither PNG_READ_iTXt_SUPPORTED nor PNG_WRITE_iTXt_SUPPORTED
is defined.
Made PNG_NO_READ|WRITE_iTXt the default setting, to avoid memory
overrun when old applications fill the info_ptr->text structure directly.
@@ -5939,7 +5939,7 @@
Version 1.6.32beta07 [August 3, 2017]
Check length of all chunks except IDAT against user limit to fix an
- OSS-fuzz issue.
+ OSS-fuzz issue (Fixes CVE-2017-12652).
Version 1.6.32beta08 [August 3, 2017]
Check length of IDAT against maximum possible IDAT size, accounting
@@ -5994,6 +5994,49 @@
Version 1.6.32 [August 24, 2017]
No changes.
+Version 1.6.33beta01 [August 28, 2017]
+ Added PNGMINUS_UNUSED macro to contrib/pngminus/p*.c and added missing
+ parenthesis in contrib/pngminus/pnm2png.c (bug report by Christian Hesse).
+ Fixed off-by-one error in png_do_check_palette_indexes() (Bug report
+ by Mick P., Source Forge Issue #269).
+
+Version 1.6.33beta02 [September 3, 2017]
+ Initialize png_handler.row_ptr in contrib/oss-fuzz/libpng_read_fuzzer.cc
+ to fix shortlived oss-fuzz issue 3234.
+ Compute a larger limit on IDAT because some applications write a deflate
+ buffer for each row (Bug report by Andrew Church).
+ Use current date (DATE) instead of release-date (RDATE) in last
+ changed date of contrib/oss-fuzz files.
+ Enabled ARM support in CMakeLists.txt (Bernd Kuhls).
+
+Version 1.6.33beta03 [September 14, 2017]
+ Fixed incorrect typecast of some arguments to png_malloc() and
+ png_calloc() that were png_uint_32 instead of png_alloc_size_t
+ (Bug report by "irwir" in Github libpng issue #175).
+ Use pnglibconf.h.prebuilt when building for ANDROID with cmake (Github
+ issue 162, by rcdailey).
+
+Version 1.6.33rc01 [September 20, 2017]
+ Initialize memory allocated by png_inflate to zero, using memset, to
+ stop an oss-fuzz "use of uninitialized value" detection in png_set_text_2()
+ due to truncated iTXt or zTXt chunk.
+ Initialize memory allocated by png_read_buffer to zero, using memset, to
+ stop an oss-fuzz "use of uninitialized value" detection in
+ png_icc_check_tag_table() due to truncated iCCP chunk.
+ Removed a redundant test (suggested by "irwir" in Github issue #180).
+
+Version 1.6.33rc02 [September 23, 2017]
+ Added an interlaced version of each file in contrib/pngsuite.
+ Relocate new memset() call in pngrutil.c.
+ Removed more redundant tests (suggested by "irwir" in Github issue #180).
+ Add support for loading images with associated alpha in the Simplified
+ API (Samuel Williams).
+
+Version 1.6.33 [September 28, 2017]
+ Revert contrib/oss-fuzz/libpng_read_fuzzer.cc to libpng-1.6.32 state.
+ Initialize png_handler.row_ptr in contrib/oss-fuzz/libpng_read_fuzzer.cc
+ Add end_info structure and png_read_end() to the libpng fuzzer.
+
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit
https://lists.sourceforge.net/lists/listinfo/png-mng-implement
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7a51f00..4fcbc35 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -31,12 +31,12 @@
set(CMAKE_CONFIGURATION_TYPES "Release;Debug;MinSizeRel;RelWithDebInfo")
-project(libpng C)
+project(libpng ASM C)
enable_testing()
set(PNGLIB_MAJOR 1)
set(PNGLIB_MINOR 6)
-set(PNGLIB_RELEASE 32)
+set(PNGLIB_RELEASE 33)
set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR})
set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE})
@@ -262,7 +262,7 @@
include_directories(${CMAKE_CURRENT_BINARY_DIR})
-if(NOT AWK)
+if(NOT AWK OR ANDROID)
# No awk available to generate sources; use pre-built pnglibconf.h
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.h.prebuilt
${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h)
@@ -441,7 +441,7 @@
"${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.chk"
"${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.out"
"${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out")
-endif(NOT AWK)
+endif(NOT AWK OR ANDROID)
# OUR SOURCES
set(libpng_public_hdrs
@@ -455,7 +455,7 @@
pnginfo.h
pngstruct.h
)
-if(AWK)
+if(AWK AND NOT ANDROID)
list(APPEND libpng_private_hdrs "${CMAKE_CURRENT_BINARY_DIR}/pngprefix.h")
endif()
set(libpng_sources
@@ -844,7 +844,7 @@
# SET UP LINKS
if(PNG_SHARED)
set_target_properties(png PROPERTIES
-# VERSION 16.${PNGLIB_RELEASE}.1.6.32
+# VERSION 16.${PNGLIB_RELEASE}.1.6.33
VERSION 16.${PNGLIB_RELEASE}.0
SOVERSION 16
CLEAN_DIRECT_OUTPUT 1)
diff --git a/LICENSE b/LICENSE
index e803911..57c366f 100644
--- a/LICENSE
+++ b/LICENSE
@@ -10,7 +10,7 @@
This code is released under the libpng license.
-libpng versions 1.0.7, July 1, 2000 through 1.6.32, August 24, 2017 are
+libpng versions 1.0.7, July 1, 2000 through 1.6.33, September 28, 2017 are
Copyright (c) 2000-2002, 2004, 2006-2017 Glenn Randers-Pehrson, are
derived from libpng-1.0.6, and are distributed according to the same
disclaimer and license as libpng-1.0.6 with the following individuals
@@ -130,4 +130,4 @@
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
-April 1, 2017
+September 28, 2017
diff --git a/README b/README
index 7129271..0f03aa6 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.6.32 - August 24, 2017 (shared library 16.0)
+README for libpng version 1.6.33 - September 28, 2017 (shared library 16.0)
See the note about version numbers near the top of png.h
See INSTALL for instructions on how to install libpng.
diff --git a/configure.ac b/configure.ac
index 4f0eed4..9bb5053 100644
--- a/configure.ac
+++ b/configure.ac
@@ -25,7 +25,7 @@
dnl Version number stuff here:
-AC_INIT([libpng],[1.6.32],[png-mng-implement@lists.sourceforge.net])
+AC_INIT([libpng],[1.6.33],[png-mng-implement@lists.sourceforge.net])
AC_CONFIG_MACRO_DIR([scripts])
# libpng does not follow GNU file name conventions (hence 'foreign')
@@ -46,10 +46,10 @@
dnl AM_PREREQ([1.11.2])
dnl stop configure from automagically running automake
-PNGLIB_VERSION=1.6.32
+PNGLIB_VERSION=1.6.33
PNGLIB_MAJOR=1
PNGLIB_MINOR=6
-PNGLIB_RELEASE=32
+PNGLIB_RELEASE=33
dnl End of version number stuff
diff --git a/contrib/oss-fuzz/Dockerfile b/contrib/oss-fuzz/Dockerfile
new file mode 100644
index 0000000..7e4d1eb
--- /dev/null
+++ b/contrib/oss-fuzz/Dockerfile
@@ -0,0 +1,24 @@
+# Copyright 2016 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+FROM gcr.io/oss-fuzz-base/base-builder
+MAINTAINER glennrp@gmail.com
+RUN apt-get update && apt-get install -y make autoconf automake libtool zlib1g-dev
+
+RUN git clone --depth 1 https://github.com/glennrp/libpng.git
+RUN (cd libpng; git log | head -1)
+WORKDIR libpng
+COPY build.sh $SRC/
diff --git a/contrib/oss-fuzz/README.txt b/contrib/oss-fuzz/README.txt
index a75cba4..a2b6736 100644
--- a/contrib/oss-fuzz/README.txt
+++ b/contrib/oss-fuzz/README.txt
@@ -1,4 +1,4 @@
-Last changed in libpng 1.6.32 [August 24, 2017]
+Last changed in libpng 1.6.33 [September 28, 2017]
Copyright (c) 2017 Glenn Randers-Pehrson
This code is released under the libpng license.
@@ -13,7 +13,7 @@
which may be found at https://cs.chromium.org/chromium/src/LICENSE, or, if
noted in the source, under the Apache-2.0 license, which may
be found at http://www.apache.org/licenses/LICENSE-2.0 .
-If they have been modified, the derivatives are copyright Glenn Randers-Pehson
+If they have been modified, the derivatives are copyright Glenn Randers-Pehrson
and are released under the same licenses as the originals. Several of
the original files (libpng_read_fuzzer.options, png.dict, project.yaml)
had no licensing information; we assumed that these were under the Chromium
@@ -23,10 +23,15 @@
Original
Filename or derived Copyright License
========================= ========== ================ ==========
- build.sh derived 2017, Glenn R-P Apache 2.0
+ Dockerfile* derived 2017, Glenn R-P Apache 2.0
+ build.sh* derived 2017, Glenn R-P Apache 2.0
libpng_read_fuzzer.cc derived 2017, Glenn R-P Chromium
libpng_read_fuzzer.options original 2015, Chrome Devs Chromium
png.dict original 2015, Chrome Devs Chromium
- README.txt (this file) original 2017, GLenn R-P libpng
+ README.txt (this file) original 2017, Glenn R-P libpng
-To do: exercise the progressive reader.
+ * Dockerfile and build.sh are copies of the files used by oss-fuzz.
+ png.dict and libpng_read_fuzzer.* are the actual files used by oss-fuzz,
+ which retrieves them from the libpng repository at Github.
+
+To do: exercise the progressive reader and the png encoder.
diff --git a/contrib/oss-fuzz/build.sh b/contrib/oss-fuzz/build.sh
index cf5a9da..d2137b1 100755
--- a/contrib/oss-fuzz/build.sh
+++ b/contrib/oss-fuzz/build.sh
@@ -14,7 +14,7 @@
# See the License for the specific language governing permissions and
# limitations under the License.
#
-# Last changed in libpng 1.6.32 [August 24, 2017]
+# Last changed in libpng 1.6.33 [September 28, 2017]
#
# Revisions by Glenn Randers-Pehson, 2017:
# 1. Build only the library, not the tools (changed "make -j$(nproc) all" to
@@ -38,10 +38,13 @@
# build libpng_read_fuzzer.
$CXX $CXXFLAGS -std=c++11 -I. \
- $SRC/libpng_read_fuzzer.cc -o $OUT/libpng_read_fuzzer \
+ $SRC/libpng/contrib/oss-fuzz/libpng_read_fuzzer.cc \
+ -o $OUT/libpng_read_fuzzer \
-lFuzzingEngine .libs/libpng16.a -lz
# add seed corpus.
-find $SRC/libpng/contrib/pngsuite -name "*.png" | xargs zip $OUT/libpng_read_fuzzer_seed_corpus.zip
+find $SRC/libpng -name "*.png" | grep -v crashers | \
+ xargs zip $OUT/libpng_read_fuzzer_seed_corpus.zip
-cp $SRC/*.dict $SRC/*.options $OUT/
+cp $SRC/libpng/contrib/oss-fuzz/*.dict \
+ $SRC/libpng/contrib/oss-fuzz/*.options $OUT/
diff --git a/contrib/oss-fuzz/libpng_read_fuzzer.cc b/contrib/oss-fuzz/libpng_read_fuzzer.cc
index c1b1624..78c7c9f 100644
--- a/contrib/oss-fuzz/libpng_read_fuzzer.cc
+++ b/contrib/oss-fuzz/libpng_read_fuzzer.cc
@@ -12,6 +12,7 @@
// 2. setting the option to ignore ADLER32 checksums,
// 3. adding "#include <string.h>" which is needed on some platforms
// to provide memcpy().
+// 4. adding read_end_info() and creating an end_info structure.
#include <stddef.h>
#include <stdint.h>
@@ -23,14 +24,23 @@
#include "png.h"
#define PNG_CLEANUP \
- if(png_handler.png_ptr) \
- { \
- if (png_handler.info_ptr) \
- png_destroy_read_struct(&png_handler.png_ptr, &png_handler.info_ptr,\
- nullptr); \
- else \
- png_destroy_read_struct(&png_handler.png_ptr, nullptr, nullptr); \
- }
+ if(png_handler.png_ptr) \
+ { \
+ if (png_handler.row_ptr) \
+ png_free(png_handler.png_ptr, png_handler.row_ptr); \
+ if (png_handler.end_info_ptr) \
+ png_destroy_read_struct(&png_handler.png_ptr, &png_handler.info_ptr,\
+ &png_handler.end_info_ptr); \
+ else if (png_handler.info_ptr) \
+ png_destroy_read_struct(&png_handler.png_ptr, &png_handler.info_ptr,\
+ nullptr); \
+ else \
+ png_destroy_read_struct(&png_handler.png_ptr, nullptr, nullptr); \
+ png_handler.png_ptr = nullptr; \
+ png_handler.row_ptr = nullptr; \
+ png_handler.info_ptr = nullptr; \
+ png_handler.end_info_ptr = nullptr; \
+ }
struct BufState {
const uint8_t* data;
@@ -40,16 +50,19 @@
struct PngObjectHandler {
png_infop info_ptr = nullptr;
png_structp png_ptr = nullptr;
+ png_infop end_info_ptr = nullptr;
png_voidp row_ptr = nullptr;
BufState* buf_state = nullptr;
~PngObjectHandler() {
- if (row_ptr && png_ptr) {
+ if (row_ptr)
png_free(png_ptr, row_ptr);
- }
- if (png_ptr && info_ptr) {
+ if (end_info_ptr)
+ png_destroy_read_struct(&png_ptr, &info_ptr, &end_info_ptr);
+ else if (info_ptr)
png_destroy_read_struct(&png_ptr, &info_ptr, nullptr);
- }
+ else
+ png_destroy_read_struct(&png_ptr, nullptr, nullptr);
delete buf_state;
}
};
@@ -81,6 +94,11 @@
}
PngObjectHandler png_handler;
+ png_handler.png_ptr = nullptr;
+ png_handler.row_ptr = nullptr;
+ png_handler.info_ptr = nullptr;
+ png_handler.end_info_ptr = nullptr;
+
png_handler.png_ptr = png_create_read_struct
(PNG_LIBPNG_VER_STRING, nullptr, nullptr, nullptr);
if (!png_handler.png_ptr) {
@@ -93,6 +111,12 @@
return 0;
}
+ png_handler.end_info_ptr = png_create_info_struct(png_handler.png_ptr);
+ if (!png_handler.end_info_ptr) {
+ PNG_CLEANUP
+ return 0;
+ }
+
png_set_crc_action(png_handler.png_ptr, PNG_CRC_QUIET_USE, PNG_CRC_QUIET_USE);
#ifdef PNG_IGNORE_ADLER32
png_set_option(png_handler.png_ptr, PNG_IGNORE_ADLER32, PNG_OPTION_ON);
@@ -149,6 +173,8 @@
}
}
+ png_read_end(png_handler.png_ptr, png_handler.end_info_ptr);
+
PNG_CLEANUP
return 0;
}
diff --git a/contrib/oss-fuzz/newcc b/contrib/oss-fuzz/newcc
new file mode 100644
index 0000000..0fc9e20
--- /dev/null
+++ b/contrib/oss-fuzz/newcc
@@ -0,0 +1,190 @@
+
+// libpng_read_fuzzer.cc
+// Copyright 2017 Glenn Randers-Pehrson
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that may
+// be found in the LICENSE file https://cs.chromium.org/chromium/src/LICENSE
+
+// Last changed in libpng 1.6.33beta03 [September 27, 2017]
+
+// The modifications in 2017 by Glenn Randers-Pehrson include
+// 1. addition of a PNG_CLEANUP macro,
+// 2. setting the option to ignore ADLER32 checksums,
+// 3. adding "#include <string.h>" which is needed on some platforms
+// to provide memcpy().
+// 4. adding read_end_info() and creating an end_info structure.
+
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+#include <vector>
+
+#define PNG_INTERNAL
+#include "png.h"
+
+struct BufState {
+ const uint8_t* data;
+ size_t bytes_left;
+};
+
+struct PngObjectHandler {
+ png_infop info_ptr = nullptr;
+ png_structp png_ptr = nullptr;
+ png_infop end_info_ptr = nullptr;
+ png_voidp row_ptr = nullptr;
+ BufState* buf_state = nullptr;
+
+ ~PngObjectHandler() {
+ if (row_ptr)
+ png_free(png_ptr, row_ptr);
+ if (end_info_ptr)
+ png_destroy_read_struct(&png_ptr, &info_ptr, &end_info_ptr);
+ else if (info_ptr)
+ png_destroy_read_struct(&png_ptr, &info_ptr, nullptr);
+ else
+ png_destroy_read_struct(&png_ptr, nullptr, nullptr);
+ delete buf_state;
+ }
+};
+
+void user_read_data(png_structp png_ptr, png_bytep data, png_size_t length) {
+ BufState* buf_state = static_cast<BufState*>(png_get_io_ptr(png_ptr));
+ if (length > buf_state->bytes_left) {
+ png_error(png_ptr, "read error");
+ }
+ memcpy(data, buf_state->data, length);
+ buf_state->bytes_left -= length;
+ buf_state->data += length;
+}
+
+static const int kPngHeaderSize = 8;
+
+// Entry point for LibFuzzer.
+// Roughly follows the libpng book example:
+// http://www.libpng.org/pub/png/book/chapter13.html
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+ if (size < kPngHeaderSize) {
+ return 0;
+ }
+
+ std::vector<unsigned char> v(data, data + size);
+ if (png_sig_cmp(v.data(), 0, kPngHeaderSize)) {
+ // not a PNG.
+ return 0;
+ }
+
+ PngObjectHandler png_handler;
+ png_handler.png_ptr = nullptr;
+ png_handler.row_ptr = nullptr;
+ png_handler.info_ptr = nullptr;
+ png_handler.end_info_ptr = nullptr;
+
+ png_handler.png_ptr = png_create_read_struct
+ (PNG_LIBPNG_VER_STRING, nullptr, nullptr, nullptr);
+ if (!png_handler.png_ptr) {
+ return 0;
+ }
+
+#define PNG_CLEANUP \
+ if(png_handler.png_ptr) \
+ { \
+ if (png_handler.row_ptr) \
+ png_free(png_handler.png_ptr, png_handler.row_ptr); \
+ if (png_handler.end_info_ptr) \
+ png_destroy_read_struct(&png_handler.png_ptr, &png_handler.info_ptr,\
+ &png_handler.end_info_ptr); \
+ else if (png_handler.info_ptr) \
+ png_destroy_read_struct(&png_handler.png_ptr, &png_handler.info_ptr,\
+ nullptr); \
+ else \
+ png_destroy_read_struct(&png_handler.png_ptr, nullptr, nullptr); \
+ png_handler.png_ptr = nullptr; \
+ png_handler.row_ptr = nullptr; \
+ png_handler.info_ptr = nullptr; \
+ png_handler.end_info_ptr = nullptr; \
+ }
+
+ png_handler.info_ptr = png_create_info_struct(png_handler.png_ptr);
+ if (!png_handler.info_ptr) {
+ PNG_CLEANUP
+ return 0;
+ }
+
+ png_handler.end_info_ptr = png_create_info_struct(png_handler.png_ptr);
+ if (!png_handler.end_info_ptr) {
+ PNG_CLEANUP
+ return 0;
+ }
+
+ /* Treat benign errors as warnings */
+ png_set_benign_errors(png_handler.png_ptr, 1);
+
+ png_set_crc_action(png_handler.png_ptr, PNG_CRC_QUIET_USE, PNG_CRC_QUIET_USE);
+
+#ifdef PNG_IGNORE_ADLER32
+ png_set_option(png_handler.png_ptr, PNG_IGNORE_ADLER32, PNG_OPTION_ON);
+#endif
+
+ // Setting up reading from buffer.
+ png_handler.buf_state = new BufState();
+ png_handler.buf_state->data = data + kPngHeaderSize;
+ png_handler.buf_state->bytes_left = size - kPngHeaderSize;
+ png_set_read_fn(png_handler.png_ptr, png_handler.buf_state, user_read_data);
+ png_set_sig_bytes(png_handler.png_ptr, kPngHeaderSize);
+
+ if (setjmp(png_jmpbuf(png_handler.png_ptr))) {
+ PNG_CLEANUP
+ return 0;
+ }
+
+ // Reading.
+ png_read_info(png_handler.png_ptr, png_handler.info_ptr);
+ png_read_update_info(png_handler.png_ptr, png_handler.info_ptr);
+ png_handler.row_ptr = png_malloc(
+ png_handler.png_ptr, png_get_rowbytes(png_handler.png_ptr,
+ png_handler.info_ptr));
+
+ // reset error handler to put png_deleter into scope.
+ if (setjmp(png_jmpbuf(png_handler.png_ptr))) {
+ PNG_CLEANUP
+ return 0;
+ }
+
+ png_uint_32 width, height;
+ int bit_depth, color_type, interlace_type, compression_type;
+ int filter_type;
+
+ if (!png_get_IHDR(png_handler.png_ptr, png_handler.info_ptr, &width,
+ &height, &bit_depth, &color_type, &interlace_type,
+ &compression_type, &filter_type)) {
+ PNG_CLEANUP
+ return 0;
+ }
+
+ // This is going to be too slow.
+ if (width && height > 100000000 / width) {
+ PNG_CLEANUP
+ return 0;
+ }
+
+ int passes = png_set_interlace_handling(png_handler.png_ptr);
+ png_start_read_image(png_handler.png_ptr);
+
+ /* To do: prevent the optimizer from removing this code entirely */
+ for (int pass = 0; pass < passes; ++pass) {
+ for (png_uint_32 y = 0; y < height; ++y) {
+ png_read_row(png_handler.png_ptr,
+ static_cast<png_bytep>(png_handler.row_ptr), nullptr);
+ }
+ }
+
+ png_read_end(png_handler.png_ptr, png_handler.end_info_ptr);
+
+ PNG_CLEANUP
+
+ /* TO do: exercise the progressive reader here */
+
+ return 0;
+}
diff --git a/contrib/pngminus/png2pnm.c b/contrib/pngminus/png2pnm.c
index 39a9f46..1420a78 100644
--- a/contrib/pngminus/png2pnm.c
+++ b/contrib/pngminus/png2pnm.c
@@ -5,7 +5,8 @@
* version 1.0 - 1999.10.15 - First version.
* 1.1 - 2017.04.22 - Add buffer-size check (Glenn Randers-Pehrson)
* 1.2 - 2017.08.24 - Fix potential overflow in buffer-size check
- (Glenn Randers-Pehrson)
+ * (Glenn Randers-Pehrson)
+ * 1.3 - 2017.08.28 - Add PNGMINUS_UNUSED (Christian Hesse)
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby granted,
@@ -44,6 +45,7 @@
#define PNG_DEBUG 0
#endif
+
#include "png.h"
/* Define png_jmpbuf() in case we are using a pre-1.0.6 version of libpng */
@@ -51,6 +53,14 @@
# define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
#endif
+#ifndef PNGMINUS_UNUSED
+/* Unused formal parameter warnings are silenced using the following macro
+ * which is expected to have no bad effects on performance (optimizing
+ * compilers will probably remove it entirely).
+ */
+# define PNGMINUS_UNUSED(param) (void)param
+#endif
+
/* function prototypes */
int main (int argc, char *argv[]);
@@ -443,7 +453,7 @@
if (png_pixels != (unsigned char*) NULL)
free (png_pixels);
- PNG_UNUSED(raw) /* to quiet a Coverity defect */
+ PNGMINUS_UNUSED(raw); /* to quiet a Coverity defect */
return TRUE;
} /* end of source */
diff --git a/contrib/pngminus/pnm2png.c b/contrib/pngminus/pnm2png.c
index 1b550b8..0d2caef 100644
--- a/contrib/pngminus/pnm2png.c
+++ b/contrib/pngminus/pnm2png.c
@@ -7,6 +7,7 @@
* version 1.2 - 2017.04.22 - Add buffer-size check
* 1.3 - 2017.08.24 - Fix potential overflow in buffer-size check
* (Glenn Randers-Pehrson)
+ * 1.4 - 2017.08.28 - Add PNGMINUS_UNUSED (Christian Hesse)
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby granted,
@@ -50,6 +51,15 @@
# define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
#endif
+#ifndef PNGMINUS_UNUSED
+/* Unused formal parameter warnings are silenced using the following macro
+ * which is expected to have no bad effects on performance (optimizing
+ * compilers will probably remove it entirely).
+ */
+# define PNGMINUS_UNUSED(param) (void)param
+#endif
+
+
/* function prototypes */
int main (int argc, char *argv[]);
@@ -376,13 +386,13 @@
/* row_bytes is the width x number of channels x (bit-depth / 8) */
row_bytes = width * channels * ((bit_depth <= 8) ? 1 : 2);
- if ((row_bytes == 0 || (size_t)height > ((size_t)(-1))/(size_t)row_bytes)
+ if ((row_bytes == 0 || (size_t)height > ((size_t)(-1))/(size_t)row_bytes))
{
/* too big */
return FALSE;
}
if ((png_pixels = (png_byte *)
- malloc (row_bytes * height * sizeof (png_byte))) == NULL)
+ malloc ((size_t)row_bytes * (size_t)height * sizeof (png_byte))) == NULL)
return FALSE;
/* read data from PNM file */
@@ -513,7 +523,7 @@
if (png_pixels != (unsigned char*) NULL)
free (png_pixels);
- PNG_UNUSED(raw) /* Quiet a Coverity defect */
+ PNGMINUS_UNUSED(raw); /* Quiet a Coverity defect */
return TRUE;
} /* end of pnm2png */
diff --git a/contrib/pngsuite/README b/contrib/pngsuite/README
index 53ba5c8..930aeae 100644
--- a/contrib/pngsuite/README
+++ b/contrib/pngsuite/README
@@ -16,6 +16,8 @@
The "ft*.png" images are "free/libre" replacements for the transparent
corresponding t*.png images in the PngSuite.
+The "i*.png" images are the same complete set, but interlaced.
+
The images in this directory represent the basic PNG color-types:
grayscale (1-16 bit deep), full color (8 or 16 bit), paletted
(1-8 bit) and grayscale or color images with alpha channel. You
diff --git a/contrib/pngsuite/ibasn0g01.png b/contrib/pngsuite/ibasn0g01.png
new file mode 100644
index 0000000..828fa76
--- /dev/null
+++ b/contrib/pngsuite/ibasn0g01.png
Binary files differ
diff --git a/contrib/pngsuite/ibasn0g02.png b/contrib/pngsuite/ibasn0g02.png
new file mode 100644
index 0000000..7fc17e3
--- /dev/null
+++ b/contrib/pngsuite/ibasn0g02.png
Binary files differ
diff --git a/contrib/pngsuite/ibasn0g04.png b/contrib/pngsuite/ibasn0g04.png
new file mode 100644
index 0000000..1beade2
--- /dev/null
+++ b/contrib/pngsuite/ibasn0g04.png
Binary files differ
diff --git a/contrib/pngsuite/ibasn0g08.png b/contrib/pngsuite/ibasn0g08.png
new file mode 100644
index 0000000..90b5305
--- /dev/null
+++ b/contrib/pngsuite/ibasn0g08.png
Binary files differ
diff --git a/contrib/pngsuite/ibasn0g16.png b/contrib/pngsuite/ibasn0g16.png
new file mode 100644
index 0000000..c82f230
--- /dev/null
+++ b/contrib/pngsuite/ibasn0g16.png
Binary files differ
diff --git a/contrib/pngsuite/ibasn2c08.png b/contrib/pngsuite/ibasn2c08.png
new file mode 100644
index 0000000..05d4688
--- /dev/null
+++ b/contrib/pngsuite/ibasn2c08.png
Binary files differ
diff --git a/contrib/pngsuite/ibasn2c16.png b/contrib/pngsuite/ibasn2c16.png
new file mode 100644
index 0000000..399f1be
--- /dev/null
+++ b/contrib/pngsuite/ibasn2c16.png
Binary files differ
diff --git a/contrib/pngsuite/ibasn3p01.png b/contrib/pngsuite/ibasn3p01.png
new file mode 100644
index 0000000..f91e723
--- /dev/null
+++ b/contrib/pngsuite/ibasn3p01.png
Binary files differ
diff --git a/contrib/pngsuite/ibasn3p02.png b/contrib/pngsuite/ibasn3p02.png
new file mode 100644
index 0000000..0f9ce76
--- /dev/null
+++ b/contrib/pngsuite/ibasn3p02.png
Binary files differ
diff --git a/contrib/pngsuite/ibasn3p04.png b/contrib/pngsuite/ibasn3p04.png
new file mode 100644
index 0000000..b2ca720
--- /dev/null
+++ b/contrib/pngsuite/ibasn3p04.png
Binary files differ
diff --git a/contrib/pngsuite/ibasn3p08.png b/contrib/pngsuite/ibasn3p08.png
new file mode 100644
index 0000000..6df8370
--- /dev/null
+++ b/contrib/pngsuite/ibasn3p08.png
Binary files differ
diff --git a/contrib/pngsuite/ibasn4a08.png b/contrib/pngsuite/ibasn4a08.png
new file mode 100644
index 0000000..bda8e3c
--- /dev/null
+++ b/contrib/pngsuite/ibasn4a08.png
Binary files differ
diff --git a/contrib/pngsuite/ibasn4a16.png b/contrib/pngsuite/ibasn4a16.png
new file mode 100644
index 0000000..500f912
--- /dev/null
+++ b/contrib/pngsuite/ibasn4a16.png
Binary files differ
diff --git a/contrib/pngsuite/ibasn6a08.png b/contrib/pngsuite/ibasn6a08.png
new file mode 100644
index 0000000..258f940
--- /dev/null
+++ b/contrib/pngsuite/ibasn6a08.png
Binary files differ
diff --git a/contrib/pngsuite/ibasn6a16.png b/contrib/pngsuite/ibasn6a16.png
new file mode 100644
index 0000000..e4de69f
--- /dev/null
+++ b/contrib/pngsuite/ibasn6a16.png
Binary files differ
diff --git a/contrib/pngsuite/iftbbn0g01.png b/contrib/pngsuite/iftbbn0g01.png
new file mode 100644
index 0000000..6eb27d1
--- /dev/null
+++ b/contrib/pngsuite/iftbbn0g01.png
Binary files differ
diff --git a/contrib/pngsuite/iftbbn0g02.png b/contrib/pngsuite/iftbbn0g02.png
new file mode 100644
index 0000000..46ba497
--- /dev/null
+++ b/contrib/pngsuite/iftbbn0g02.png
Binary files differ
diff --git a/contrib/pngsuite/iftbbn0g04.png b/contrib/pngsuite/iftbbn0g04.png
new file mode 100644
index 0000000..e9db0ad
--- /dev/null
+++ b/contrib/pngsuite/iftbbn0g04.png
Binary files differ
diff --git a/contrib/pngsuite/iftbbn2c16.png b/contrib/pngsuite/iftbbn2c16.png
new file mode 100644
index 0000000..64a9cdf
--- /dev/null
+++ b/contrib/pngsuite/iftbbn2c16.png
Binary files differ
diff --git a/contrib/pngsuite/iftbbn3p08.png b/contrib/pngsuite/iftbbn3p08.png
new file mode 100644
index 0000000..47d6eeb
--- /dev/null
+++ b/contrib/pngsuite/iftbbn3p08.png
Binary files differ
diff --git a/contrib/pngsuite/iftbgn2c16.png b/contrib/pngsuite/iftbgn2c16.png
new file mode 100644
index 0000000..64a9cdf
--- /dev/null
+++ b/contrib/pngsuite/iftbgn2c16.png
Binary files differ
diff --git a/contrib/pngsuite/iftbgn3p08.png b/contrib/pngsuite/iftbgn3p08.png
new file mode 100644
index 0000000..47d6eeb
--- /dev/null
+++ b/contrib/pngsuite/iftbgn3p08.png
Binary files differ
diff --git a/contrib/pngsuite/iftbrn2c08.png b/contrib/pngsuite/iftbrn2c08.png
new file mode 100644
index 0000000..08ebbae
--- /dev/null
+++ b/contrib/pngsuite/iftbrn2c08.png
Binary files differ
diff --git a/contrib/pngsuite/iftbwn0g16.png b/contrib/pngsuite/iftbwn0g16.png
new file mode 100644
index 0000000..4b7537e
--- /dev/null
+++ b/contrib/pngsuite/iftbwn0g16.png
Binary files differ
diff --git a/contrib/pngsuite/iftbwn3p08.png b/contrib/pngsuite/iftbwn3p08.png
new file mode 100644
index 0000000..47d6eeb
--- /dev/null
+++ b/contrib/pngsuite/iftbwn3p08.png
Binary files differ
diff --git a/contrib/pngsuite/iftbyn3p08.png b/contrib/pngsuite/iftbyn3p08.png
new file mode 100644
index 0000000..47d6eeb
--- /dev/null
+++ b/contrib/pngsuite/iftbyn3p08.png
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diff --git a/contrib/pngsuite/iftp0n0g08.png b/contrib/pngsuite/iftp0n0g08.png
new file mode 100644
index 0000000..aa826b8
--- /dev/null
+++ b/contrib/pngsuite/iftp0n0g08.png
Binary files differ
diff --git a/contrib/pngsuite/iftp0n2c08.png b/contrib/pngsuite/iftp0n2c08.png
new file mode 100644
index 0000000..b12bd0a
--- /dev/null
+++ b/contrib/pngsuite/iftp0n2c08.png
Binary files differ
diff --git a/contrib/pngsuite/iftp0n3p08.png b/contrib/pngsuite/iftp0n3p08.png
new file mode 100644
index 0000000..37aa0cb
--- /dev/null
+++ b/contrib/pngsuite/iftp0n3p08.png
Binary files differ
diff --git a/contrib/pngsuite/iftp1n3p08.png b/contrib/pngsuite/iftp1n3p08.png
new file mode 100644
index 0000000..47d6eeb
--- /dev/null
+++ b/contrib/pngsuite/iftp1n3p08.png
Binary files differ
diff --git a/libpng-manual.txt b/libpng-manual.txt
index e34b143..d5cfe97 100644
--- a/libpng-manual.txt
+++ b/libpng-manual.txt
@@ -1,6 +1,6 @@
libpng-manual.txt - A description on how to use and modify libpng
- libpng version 1.6.32 - August 24, 2017
+ libpng version 1.6.33 - September 28, 2017
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2017 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@
Based on:
- libpng versions 0.97, January 1998, through 1.6.32 - August 24, 2017
+ libpng versions 0.97, January 1998, through 1.6.33 - September 28, 2017
Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2017 Glenn Randers-Pehrson
@@ -986,8 +986,17 @@
png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB);
-This is the default libpng handling of the alpha channel - it is not
-pre-multiplied into the color components. In addition the call states
+Choices for the alpha_mode are
+
+ PNG_ALPHA_PNG 0 /* according to the PNG standard */
+ PNG_ALPHA_STANDARD 1 /* according to Porter/Duff */
+ PNG_ALPHA_ASSOCIATED 1 /* as above; this is the normal practice */
+ PNG_ALPHA_PREMULTIPLIED 1 /* as above */
+ PNG_ALPHA_OPTIMIZED 2 /* 'PNG' for opaque pixels, else 'STANDARD' */
+ PNG_ALPHA_BROKEN 3 /* the alpha channel is gamma encoded */
+
+PNG_ALPHA_PNG is the default libpng handling of the alpha channel. It is not
+pre-multiplied into the color components. In addition the call states
that the output is for a sRGB system and causes all PNG files without gAMA
chunks to be assumed to be encoded using sRGB.
@@ -1002,7 +1011,7 @@
This is the classic Jim Blinn approach and will work in academic
environments where everything is done by the book. It has the shortcoming
of assuming that input PNG data with no gamma information is linear - this
-is unlikely to be correct unless the PNG files where generated locally.
+is unlikely to be correct unless the PNG files were generated locally.
Most of the time the output precision will be so low as to show
significant banding in dark areas of the image.
@@ -5405,7 +5414,7 @@
an official declaration.
This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.6.32 are Y2K compliant. It is my belief that earlier
+upward through 1.6.33 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant.
Libpng only has two year fields. One is a 2-byte unsigned integer
diff --git a/libpng.3 b/libpng.3
index 899d8ea..03f9282 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,6 +1,6 @@
-.TH LIBPNG 3 "August 24, 2017"
+.TH LIBPNG 3 "September 28, 2017"
.SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.6.32
+libpng \- Portable Network Graphics (PNG) Reference Library 1.6.33
.SH SYNOPSIS
\fB
#include <png.h>\fP
@@ -518,7 +518,7 @@
.SH LIBPNG.TXT
libpng-manual.txt - A description on how to use and modify libpng
- libpng version 1.6.32 - August 24, 2017
+ libpng version 1.6.33 - September 28, 2017
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2017 Glenn Randers-Pehrson
@@ -529,7 +529,7 @@
Based on:
- libpng versions 0.97, January 1998, through 1.6.32 - August 24, 2017
+ libpng versions 0.97, January 1998, through 1.6.33 - September 28, 2017
Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2017 Glenn Randers-Pehrson
@@ -1504,8 +1504,17 @@
png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB);
-This is the default libpng handling of the alpha channel - it is not
-pre-multiplied into the color components. In addition the call states
+Choices for the alpha_mode are
+
+ PNG_ALPHA_PNG 0 /* according to the PNG standard */
+ PNG_ALPHA_STANDARD 1 /* according to Porter/Duff */
+ PNG_ALPHA_ASSOCIATED 1 /* as above; this is the normal practice */
+ PNG_ALPHA_PREMULTIPLIED 1 /* as above */
+ PNG_ALPHA_OPTIMIZED 2 /* 'PNG' for opaque pixels, else 'STANDARD' */
+ PNG_ALPHA_BROKEN 3 /* the alpha channel is gamma encoded */
+
+PNG_ALPHA_PNG is the default libpng handling of the alpha channel. It is not
+pre-multiplied into the color components. In addition the call states
that the output is for a sRGB system and causes all PNG files without gAMA
chunks to be assumed to be encoded using sRGB.
@@ -1520,7 +1529,7 @@
This is the classic Jim Blinn approach and will work in academic
environments where everything is done by the book. It has the shortcoming
of assuming that input PNG data with no gamma information is linear - this
-is unlikely to be correct unless the PNG files where generated locally.
+is unlikely to be correct unless the PNG files were generated locally.
Most of the time the output precision will be so low as to show
significant banding in dark areas of the image.
@@ -5923,7 +5932,7 @@
an official declaration.
This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.6.32 are Y2K compliant. It is my belief that earlier
+upward through 1.6.33 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant.
Libpng only has two year fields. One is a 2-byte unsigned integer
@@ -6025,7 +6034,7 @@
...
1.5.28 15 10528 15.so.15.28[.0]
...
- 1.6.32 16 10632 16.so.16.32[.0]
+ 1.6.33 16 10633 16.so.16.33[.0]
Henceforth the source version will match the shared-library minor
and patch numbers; the shared-library major version number will be
@@ -6081,7 +6090,7 @@
Thanks to Frank J. T. Wojcik for helping with the documentation.
-Libpng version 1.6.32 - August 24, 2017:
+Libpng version 1.6.33 - September 28, 2017:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
@@ -6106,7 +6115,7 @@
This code is released under the libpng license.
-libpng versions 1.0.7, July 1, 2000 through 1.6.32, August 24, 2017 are
+libpng versions 1.0.7, July 1, 2000 through 1.6.33, September 28, 2017 are
Copyright (c) 2000-2002, 2004, 2006-2017 Glenn Randers-Pehrson, are
derived from libpng-1.0.6, and are distributed according to the same
disclaimer and license as libpng-1.0.6 with the following individuals
@@ -6234,7 +6243,7 @@
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
-August 24, 2017
+September 28, 2017
.\" end of man page
diff --git a/libpngpf.3 b/libpngpf.3
index ab84577..03b7f60 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,6 +1,6 @@
.TH LIBPNGPF 3 "April 1, 2017"
.SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.6.32
+libpng \- Portable Network Graphics (PNG) Reference Library 1.6.33
(private functions)
.SH SYNOPSIS
\fB\fB#include \fI\fI"pngpriv.h"
diff --git a/png.c b/png.c
index 2352df1..5513472 100644
--- a/png.c
+++ b/png.c
@@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions
*
- * Last changed in libpng 1.6.32 [August 24, 2017]
+ * Last changed in libpng 1.6.33 [September 28, 2017]
* Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -14,7 +14,7 @@
#include "pngpriv.h"
/* Generate a compiler error if there is an old png.h in the search path. */
-typedef png_libpng_version_1_6_32 Your_png_h_is_not_version_1_6_32;
+typedef png_libpng_version_1_6_33 Your_png_h_is_not_version_1_6_33;
#ifdef __GNUC__
/* The version tests may need to be added to, but the problem warning has
@@ -816,14 +816,14 @@
#else
# ifdef __STDC__
return PNG_STRING_NEWLINE \
- "libpng version 1.6.32 - August 24, 2017" PNG_STRING_NEWLINE \
+ "libpng version 1.6.33 - September 28, 2017" PNG_STRING_NEWLINE \
"Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson" \
PNG_STRING_NEWLINE \
"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
"Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
PNG_STRING_NEWLINE;
# else
- return "libpng version 1.6.32 - August 24, 2017\
+ return "libpng version 1.6.33 - September 28, 2017\
Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson\
Copyright (c) 1996-1997 Andreas Dilger\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
@@ -1913,12 +1913,12 @@
*/
if (intent < 0 || intent >= PNG_sRGB_INTENT_LAST)
return png_icc_profile_error(png_ptr, colorspace, "sRGB",
- (unsigned)intent, "invalid sRGB rendering intent");
+ (png_alloc_size_t)intent, "invalid sRGB rendering intent");
if ((colorspace->flags & PNG_COLORSPACE_HAVE_INTENT) != 0 &&
colorspace->rendering_intent != intent)
return png_icc_profile_error(png_ptr, colorspace, "sRGB",
- (unsigned)intent, "inconsistent rendering intents");
+ (png_alloc_size_t)intent, "inconsistent rendering intents");
if ((colorspace->flags & PNG_COLORSPACE_FROM_sRGB) != 0)
{
@@ -1979,7 +1979,6 @@
if (profile_length < 132)
return png_icc_profile_error(png_ptr, colorspace, name, profile_length,
"too short");
-
return 1;
}
@@ -2224,15 +2223,6 @@
* being in range. All defined tag types have an 8 byte header - a 4 byte
* type signature then 0.
*/
- if ((tag_start & 3) != 0)
- {
- /* CNHP730S.icc shipped with Microsoft Windows 64 violates this, it is
- * only a warning here because libpng does not care about the
- * alignment.
- */
- (void)png_icc_profile_error(png_ptr, NULL, name, tag_id,
- "ICC profile tag start not a multiple of 4");
- }
/* This is a hard error; potentially it can cause read outside the
* profile.
@@ -2240,6 +2230,16 @@
if (tag_start > profile_length || tag_length > profile_length - tag_start)
return png_icc_profile_error(png_ptr, colorspace, name, tag_id,
"ICC profile tag outside profile");
+
+ if ((tag_start & 3) != 0)
+ {
+ /* CNHP730S.icc shipped with Microsoft Windows 64 violates this; it is
+ * only a warning here because libpng does not care about the
+ * alignment.
+ */
+ (void)png_icc_profile_error(png_ptr, NULL, name, tag_id,
+ "ICC profile tag start not a multiple of 4");
+ }
}
return 1; /* success, maybe with warnings */
@@ -3761,7 +3761,7 @@
* of getting this accuracy in practice.
*
* To deal with this the following exp() function works out the exponent of the
- * frational part of the logarithm by using an accurate 32-bit value from the
+ * fractional part of the logarithm by using an accurate 32-bit value from the
* top four fractional bits then multiplying in the remaining bits.
*/
static const png_uint_32
diff --git a/png.h b/png.h
index 51ac8ab..a5f142b 100644
--- a/png.h
+++ b/png.h
@@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library
*
- * libpng version 1.6.32, August 24, 2017
+ * libpng version 1.6.33, September 28, 2017
*
* Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -12,7 +12,7 @@
* Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
* libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger
- * libpng versions 0.97, January 1998, through 1.6.32, August 24, 2017:
+ * libpng versions 0.97, January 1998, through 1.6.33, September 28, 2017:
* Glenn Randers-Pehrson.
* See also "Contributing Authors", below.
*/
@@ -25,7 +25,7 @@
*
* This code is released under the libpng license.
*
- * libpng versions 1.0.7, July 1, 2000 through 1.6.32, August 24, 2017 are
+ * libpng versions 1.0.7, July 1, 2000 through 1.6.33, September 28, 2017 are
* Copyright (c) 2000-2002, 2004, 2006-2017 Glenn Randers-Pehrson, are
* derived from libpng-1.0.6, and are distributed according to the same
* disclaimer and license as libpng-1.0.6 with the following individuals
@@ -213,7 +213,7 @@
* ...
* 1.5.28 15 10527 15.so.15.28[.0]
* ...
- * 1.6.32 16 10632 16.so.16.32[.0]
+ * 1.6.33 16 10633 16.so.16.33[.0]
*
* Henceforth the source version will match the shared-library major
* and minor numbers; the shared-library major version number will be
@@ -241,13 +241,13 @@
* Y2K compliance in libpng:
* =========================
*
- * August 24, 2017
+ * September 28, 2017
*
* Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration.
*
* This is your unofficial assurance that libpng from version 0.71 and
- * upward through 1.6.32 are Y2K compliant. It is my belief that
+ * upward through 1.6.33 are Y2K compliant. It is my belief that
* earlier versions were also Y2K compliant.
*
* Libpng only has two year fields. One is a 2-byte unsigned integer
@@ -309,8 +309,8 @@
*/
/* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.6.32"
-#define PNG_HEADER_VERSION_STRING " libpng version 1.6.32 - August 24, 2017\n"
+#define PNG_LIBPNG_VER_STRING "1.6.33"
+#define PNG_HEADER_VERSION_STRING " libpng version 1.6.33 - September 28, 2017\n"
#define PNG_LIBPNG_VER_SONUM 16
#define PNG_LIBPNG_VER_DLLNUM 16
@@ -318,7 +318,7 @@
/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
#define PNG_LIBPNG_VER_MAJOR 1
#define PNG_LIBPNG_VER_MINOR 6
-#define PNG_LIBPNG_VER_RELEASE 32
+#define PNG_LIBPNG_VER_RELEASE 33
/* This should match the numeric part of the final component of
* PNG_LIBPNG_VER_STRING, omitting any leading zero:
@@ -349,7 +349,7 @@
* version 1.0.0 was mis-numbered 100 instead of 10000). From
* version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release
*/
-#define PNG_LIBPNG_VER 10632 /* 1.6.32 */
+#define PNG_LIBPNG_VER 10633 /* 1.6.33 */
/* Library configuration: these options cannot be changed after
* the library has been built.
@@ -459,7 +459,7 @@
/* This triggers a compiler error in png.c, if png.c and png.h
* do not agree upon the version number.
*/
-typedef char* png_libpng_version_1_6_32;
+typedef char* png_libpng_version_1_6_33;
/* Basic control structions. Read libpng-manual.txt or libpng.3 for more info.
*
@@ -2819,6 +2819,8 @@
# define PNG_FORMAT_FLAG_AFIRST 0x20U /* alpha channel comes first */
#endif
+#define PNG_FORMAT_FLAG_ASSOCIATED_ALPHA 0x40U /* alpha channel is associated */
+
/* Commonly used formats have predefined macros.
*
* First the single byte (sRGB) formats:
diff --git a/pngconf.h b/pngconf.h
index c0f1554..e99e827 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,7 +1,7 @@
/* pngconf.h - machine configurable file for libpng
*
- * libpng version 1.6.32, August 24, 2017
+ * libpng version 1.6.33, September 28, 2017
*
* Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngread.c b/pngread.c
index e34ddd9..da32e9a 100644
--- a/pngread.c
+++ b/pngread.c
@@ -1,7 +1,7 @@
/* pngread.c - read a PNG file
*
- * Last changed in libpng 1.6.32 [August 24, 2017]
+ * Last changed in libpng 1.6.33 [September 28, 2017]
* Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -3759,7 +3759,13 @@
mode = PNG_ALPHA_PNG;
output_gamma = PNG_DEFAULT_sRGB;
}
-
+
+ if ((change & PNG_FORMAT_FLAG_ASSOCIATED_ALPHA) != 0)
+ {
+ mode = PNG_ALPHA_OPTIMIZED;
+ change &= ~PNG_FORMAT_FLAG_ASSOCIATED_ALPHA;
+ }
+
/* If 'do_local_background' is set check for the presence of gamma
* correction; this is part of the work-round for the libpng bug
* described above.
@@ -3985,6 +3991,10 @@
else if (do_local_compose != 0) /* internal error */
png_error(png_ptr, "png_image_read: alpha channel lost");
+ if ((format & PNG_FORMAT_FLAG_ASSOCIATED_ALPHA) != 0) {
+ info_format |= PNG_FORMAT_FLAG_ASSOCIATED_ALPHA;
+ }
+
if (info_ptr->bit_depth == 16)
info_format |= PNG_FORMAT_FLAG_LINEAR;
diff --git a/pngrtran.c b/pngrtran.c
index 9a30ddf..c189650 100644
--- a/pngrtran.c
+++ b/pngrtran.c
@@ -1,7 +1,7 @@
/* pngrtran.c - transforms the data in a row for PNG readers
*
- * Last changed in libpng 1.6.31 [July 27, 2017]
+ * Last changed in libpng 1.6.33 [September 28, 2017]
* Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -430,7 +430,7 @@
int i;
png_ptr->quantize_index = (png_bytep)png_malloc(png_ptr,
- (png_uint_32)((png_uint_32)num_palette * (sizeof (png_byte))));
+ (png_alloc_size_t)((png_uint_32)num_palette * (sizeof (png_byte))));
for (i = 0; i < num_palette; i++)
png_ptr->quantize_index[i] = (png_byte)i;
}
@@ -447,7 +447,7 @@
/* Initialize an array to sort colors */
png_ptr->quantize_sort = (png_bytep)png_malloc(png_ptr,
- (png_uint_32)((png_uint_32)num_palette * (sizeof (png_byte))));
+ (png_alloc_size_t)((png_uint_32)num_palette * (sizeof (png_byte))));
/* Initialize the quantize_sort array */
for (i = 0; i < num_palette; i++)
@@ -581,9 +581,11 @@
/* Initialize palette index arrays */
png_ptr->index_to_palette = (png_bytep)png_malloc(png_ptr,
- (png_uint_32)((png_uint_32)num_palette * (sizeof (png_byte))));
+ (png_alloc_size_t)((png_uint_32)num_palette *
+ (sizeof (png_byte))));
png_ptr->palette_to_index = (png_bytep)png_malloc(png_ptr,
- (png_uint_32)((png_uint_32)num_palette * (sizeof (png_byte))));
+ (png_alloc_size_t)((png_uint_32)num_palette *
+ (sizeof (png_byte))));
/* Initialize the sort array */
for (i = 0; i < num_palette; i++)
@@ -592,7 +594,7 @@
png_ptr->palette_to_index[i] = (png_byte)i;
}
- hash = (png_dsortpp)png_calloc(png_ptr, (png_uint_32)(769 *
+ hash = (png_dsortpp)png_calloc(png_ptr, (png_alloc_size_t)(769 *
(sizeof (png_dsortp))));
num_new_palette = num_palette;
@@ -623,7 +625,7 @@
{
t = (png_dsortp)png_malloc_warn(png_ptr,
- (png_uint_32)(sizeof (png_dsort)));
+ (png_alloc_size_t)(sizeof (png_dsort)));
if (t == NULL)
break;
@@ -748,9 +750,9 @@
png_size_t num_entries = ((png_size_t)1 << total_bits);
png_ptr->palette_lookup = (png_bytep)png_calloc(png_ptr,
- (png_uint_32)(num_entries * (sizeof (png_byte))));
+ (png_alloc_size_t)(num_entries * (sizeof (png_byte))));
- distance = (png_bytep)png_malloc(png_ptr, (png_uint_32)(num_entries *
+ distance = (png_bytep)png_malloc(png_ptr, (png_alloc_size_t)(num_entries *
(sizeof (png_byte))));
memset(distance, 0xff, num_entries * (sizeof (png_byte)));
@@ -3322,7 +3324,7 @@
== png_ptr->trans_color.gray)
{
unsigned int tmp = *sp & (0x0f0f >> (4 - shift));
- tmp |=
+ tmp |=
(unsigned int)(png_ptr->background.gray << shift);
*sp = (png_byte)(tmp & 0xff);
}
diff --git a/pngrutil.c b/pngrutil.c
index a4fa714..8692933 100644
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -1,7 +1,7 @@
/* pngrutil.c - utilities to read a PNG file
*
- * Last changed in libpng 1.6.32 [August 24, 2017]
+ * Last changed in libpng 1.6.33 [September 28, 2017]
* Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -314,6 +314,7 @@
if (buffer != NULL)
{
+ memset(buffer, 0, new_size); /* just in case */
png_ptr->read_buffer = buffer;
png_ptr->read_buffer_size = new_size;
}
@@ -673,6 +674,8 @@
if (text != NULL)
{
+ memset(text, 0, buffer_size);
+
ret = png_inflate(png_ptr, png_ptr->chunk_name, 1/*finish*/,
png_ptr->read_buffer + prefix_size, &lzsize,
text + prefix_size, newlength);
@@ -736,9 +739,7 @@
{
/* inflateReset failed, store the error message */
png_zstream_error(png_ptr, ret);
-
- if (ret == Z_STREAM_END)
- ret = PNG_UNEXPECTED_ZLIB_RETURN;
+ ret = PNG_UNEXPECTED_ZLIB_RETURN;
}
}
@@ -1476,7 +1477,7 @@
/* Now read the tag table; a variable size buffer is
* needed at this point, allocate one for the whole
* profile. The header check has already validated
- * that none of these stuff will overflow.
+ * that none of this stuff will overflow.
*/
const png_uint_32 tag_count = png_get_uint_32(
profile_header+128);
@@ -1583,19 +1584,11 @@
return;
}
}
-
- else if (size > 0)
- errmsg = "truncated";
-
-#ifndef __COVERITY__
- else
+ if (errmsg == NULL)
errmsg = png_ptr->zstream.msg;
-#endif
}
-
/* else png_icc_check_tag_table output an error */
}
-
else /* profile truncated */
errmsg = png_ptr->zstream.msg;
}
@@ -3144,28 +3137,28 @@
{
png_alloc_size_t limit = PNG_UINT_31_MAX;
- if (png_ptr->chunk_name != png_IDAT)
- {
# ifdef PNG_SET_USER_LIMITS_SUPPORTED
- if (png_ptr->user_chunk_malloc_max > 0 &&
- png_ptr->user_chunk_malloc_max < limit)
- limit = png_ptr->user_chunk_malloc_max;
+ if (png_ptr->user_chunk_malloc_max > 0 &&
+ png_ptr->user_chunk_malloc_max < limit)
+ limit = png_ptr->user_chunk_malloc_max;
# elif PNG_USER_CHUNK_MALLOC_MAX > 0
- if (PNG_USER_CHUNK_MALLOC_MAX < limit)
- limit = PNG_USER_CHUNK_MALLOC_MAX;
+ if (PNG_USER_CHUNK_MALLOC_MAX < limit)
+ limit = PNG_USER_CHUNK_MALLOC_MAX;
# endif
- }
- else
+ if (png_ptr->chunk_name == png_IDAT)
{
+ png_alloc_size_t idat_limit = PNG_UINT_31_MAX;
size_t row_factor =
(png_ptr->width * png_ptr->channels * (png_ptr->bit_depth > 8? 2: 1)
+ 1 + (png_ptr->interlaced? 6: 0));
if (png_ptr->height > PNG_UINT_32_MAX/row_factor)
- limit=PNG_UINT_31_MAX;
+ idat_limit=PNG_UINT_31_MAX;
else
- limit = png_ptr->height * row_factor;
- limit += 6 + 5*(limit/32566+1); /* zlib+deflate overhead */
- limit=limit < PNG_UINT_31_MAX? limit : PNG_UINT_31_MAX;
+ idat_limit = png_ptr->height * row_factor;
+ row_factor = row_factor > 32566? 32566 : row_factor;
+ idat_limit += 6 + 5*(idat_limit/row_factor+1); /* zlib+deflate overhead */
+ idat_limit=idat_limit < PNG_UINT_31_MAX? idat_limit : PNG_UINT_31_MAX;
+ limit = limit < idat_limit? idat_limit : limit;
}
if (length > limit)
diff --git a/pngtest.c b/pngtest.c
index ce53345..d91fee1 100644
--- a/pngtest.c
+++ b/pngtest.c
@@ -2153,4 +2153,4 @@
#endif
/* Generate a compiler error if there is an old png.h in the search path. */
-typedef png_libpng_version_1_6_32 Your_png_h_is_not_version_1_6_32;
+typedef png_libpng_version_1_6_33 Your_png_h_is_not_version_1_6_33;
diff --git a/pngtrans.c b/pngtrans.c
index 326ac33..6882f0f 100644
--- a/pngtrans.c
+++ b/pngtrans.c
@@ -1,7 +1,7 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers)
*
- * Last changed in libpng 1.6.30 [June 28, 2017]
+ * Last changed in libpng 1.6.33 [September 28, 2017]
* Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -609,7 +609,7 @@
return; /* The filler channel has gone already */
/* Fix the rowbytes value. */
- row_info->rowbytes = (unsigned int)(dp-row);
+ row_info->rowbytes = (png_size_t)(dp-row);
}
#endif
@@ -708,7 +708,7 @@
* forms produced on either GCC or MSVC.
*/
int padding = PNG_PADBITS(row_info->pixel_depth, row_info->width);
- png_bytep rp = png_ptr->row_buf + row_info->rowbytes;
+ png_bytep rp = png_ptr->row_buf + row_info->rowbytes - 1;
switch (row_info->bit_depth)
{
diff --git a/pngwrite.c b/pngwrite.c
index a7662ac..a16d77c 100644
--- a/pngwrite.c
+++ b/pngwrite.c
@@ -1940,7 +1940,7 @@
int colormap = (format & PNG_FORMAT_FLAG_COLORMAP);
int linear = !colormap && (format & PNG_FORMAT_FLAG_LINEAR); /* input */
int alpha = !colormap && (format & PNG_FORMAT_FLAG_ALPHA);
- int write_16bit = linear && !colormap && (display->convert_to_8bit == 0);
+ int write_16bit = linear && (display->convert_to_8bit == 0);
# ifdef PNG_BENIGN_ERRORS_SUPPORTED
/* Make sure we error out on any bad situation */
diff --git a/projects/vstudio/README.txt b/projects/vstudio/README.txt
index e68f242..3e2c37d 100644
--- a/projects/vstudio/README.txt
+++ b/projects/vstudio/README.txt
@@ -1,7 +1,7 @@
VisualStudio instructions
-libpng version 1.6.32 - August 24, 2017
+libpng version 1.6.33 - September 28, 2017
Copyright (c) 2010,2013,2015 Glenn Randers-Pehrson
diff --git a/projects/vstudio/zlib.props b/projects/vstudio/zlib.props
index 2b2d690..b794131 100644
--- a/projects/vstudio/zlib.props
+++ b/projects/vstudio/zlib.props
@@ -2,7 +2,7 @@
<!--
* zlib.props - location of zlib source
*
- * libpng version 1.6.32 - August 24, 2017
+ * libpng version 1.6.33 - September 28, 2017
*
* Copyright (c) 1998-2011 Glenn Randers-Pehrson
*
diff --git a/scripts/README.txt b/scripts/README.txt
index fdc767a..fe560b4 100644
--- a/scripts/README.txt
+++ b/scripts/README.txt
@@ -1,11 +1,11 @@
-Makefiles for libpng version 1.6.32 - August 24, 2017
+Makefiles for libpng version 1.6.33 - September 28, 2017
pnglibconf.h.prebuilt => Stores configuration settings
makefile.linux => Linux/ELF makefile
- (gcc, creates libpng16.so.16.1.6.32)
+ (gcc, creates libpng16.so.16.1.6.33)
makefile.linux-opt=> Linux/ELF makefile with hardware optimizations on
- (gcc, creates libpng16.so.16.1.6.32)
+ (gcc, creates libpng16.so.16.1.6.33)
makefile.gcc => Generic makefile (gcc, creates static libpng.a)
makefile.knr => Archaic UNIX Makefile that converts files with
ansi2knr (Requires ansi2knr.c from
@@ -35,12 +35,12 @@
makefile.os2 => OS/2 Makefile (gcc and emx, requires libpng.def)
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
makefile.sggcc => Silicon Graphics (gcc,
- creates libpng16.so.16.1.6.32)
+ creates libpng16.so.16.1.6.33)
makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib)
makefile.solaris => Solaris 2.X makefile (gcc,
- creates libpng16.so.16.1.6.32)
+ creates libpng16.so.16.1.6.33)
makefile.so9 => Solaris 9 makefile (gcc,
- creates libpng16.so.16.1.6.32)
+ creates libpng16.so.16.1.6.33)
makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
makefile.sunos => Sun makefile
makefile.32sunu => Sun Ultra 32-bit makefile
diff --git a/scripts/def.c b/scripts/def.c
index d5c4075..d1a13cc 100644
--- a/scripts/def.c
+++ b/scripts/def.c
@@ -21,7 +21,7 @@
PNG_DFN "OS2 CODE PRELOAD MOVEABLE DISCARDABLE"
PNG_DFN ""
PNG_DFN "EXPORTS"
-PNG_DFN ";Version 1.6.32"
+PNG_DFN ";Version 1.6.33"
#define PNG_EXPORTA(ordinal, type, name, args, attributes)\
PNG_DFN "@" SYMBOL_PREFIX "@@" name "@"
diff --git a/scripts/libpng-config-head.in b/scripts/libpng-config-head.in
index 2198c52..733860d 100644
--- a/scripts/libpng-config-head.in
+++ b/scripts/libpng-config-head.in
@@ -11,7 +11,7 @@
# Modeled after libxml-config.
-version=1.6.32
+version=1.6.33
prefix=""
libdir=""
libs=""
diff --git a/scripts/libpng.pc.in b/scripts/libpng.pc.in
index ef50624..3854282 100644
--- a/scripts/libpng.pc.in
+++ b/scripts/libpng.pc.in
@@ -5,6 +5,6 @@
Name: libpng
Description: Loads and saves PNG files
-Version: 1.6.32
+Version: 1.6.33
Libs: -L${libdir} -lpng16
Cflags: -I${includedir}
diff --git a/scripts/makefile.cegcc b/scripts/makefile.cegcc
index 4a3e925..9c54579 100644
--- a/scripts/makefile.cegcc
+++ b/scripts/makefile.cegcc
@@ -23,7 +23,7 @@
VERMAJ = 1
VERMIN = 6
-VERMIC = 32
+VERMIC = 33
VER = $(VERMAJ).$(VERMIN).$(VERMIC)
NAME = libpng
PACKAGE = $(NAME)-$(VER)
diff --git a/scripts/makefile.linux b/scripts/makefile.linux
index 618cb2f..6cec93e 100644
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -10,7 +10,7 @@
# Library name:
LIBNAME = libpng16
PNGMAJ = 16
-RELEASE = 32
+RELEASE = 33
# Shared library names:
LIBSO=$(LIBNAME).so
diff --git a/scripts/makefile.linux-opt b/scripts/makefile.linux-opt
index f75a787..1cd85e0 100644
--- a/scripts/makefile.linux-opt
+++ b/scripts/makefile.linux-opt
@@ -10,7 +10,7 @@
# Library name:
LIBNAME = libpng16
PNGMAJ = 16
-RELEASE = 32
+RELEASE = 33
# Shared library names:
LIBSO=$(LIBNAME).so
diff --git a/scripts/makefile.msys b/scripts/makefile.msys
index 84a8949..7393f8c 100644
--- a/scripts/makefile.msys
+++ b/scripts/makefile.msys
@@ -18,7 +18,7 @@
# Library name:
LIBNAME = libpng16
PNGMAJ = 16
-RELEASE = 32
+RELEASE = 33
# Shared library names:
LIBSO=$(LIBNAME).dll
diff --git a/scripts/makefile.ne12bsd b/scripts/makefile.ne12bsd
index c04993f..b57c7bb 100644
--- a/scripts/makefile.ne12bsd
+++ b/scripts/makefile.ne12bsd
@@ -17,7 +17,7 @@
LIB= png16
SHLIB_MAJOR= 0
-SHLIB_MINOR= 1.6.32
+SHLIB_MINOR= 1.6.33
SRCS= png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
pngwtran.c pngmem.c pngerror.c pngpread.c
diff --git a/scripts/makefile.netbsd b/scripts/makefile.netbsd
index b52b942..edc6ae6 100644
--- a/scripts/makefile.netbsd
+++ b/scripts/makefile.netbsd
@@ -17,7 +17,7 @@
LIB= png
SHLIB_MAJOR= 16
-SHLIB_MINOR= 1.6.32
+SHLIB_MINOR= 1.6.33
SRCS= png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
pngwtran.c pngmem.c pngerror.c pngpread.c
diff --git a/scripts/makefile.openbsd b/scripts/makefile.openbsd
index daec109..ecde666 100644
--- a/scripts/makefile.openbsd
+++ b/scripts/makefile.openbsd
@@ -11,7 +11,7 @@
MANDIR= ${PREFIX}/man/cat
SHLIB_MAJOR= 16
-SHLIB_MINOR= 1.6.32
+SHLIB_MINOR= 1.6.33
LIB= png
SRCS= png.c pngerror.c pngget.c pngmem.c pngpread.c \
diff --git a/scripts/pnglibconf.h.prebuilt b/scripts/pnglibconf.h.prebuilt
index 9e45f73..cbf715d 100644
--- a/scripts/pnglibconf.h.prebuilt
+++ b/scripts/pnglibconf.h.prebuilt
@@ -1,8 +1,8 @@
-/* libpng 1.6.32 STANDARD API DEFINITION */
+/* libpng 1.6.33 STANDARD API DEFINITION */
/* pnglibconf.h - library build configuration */
-/* Libpng version 1.6.32 - August 24, 2017 */
+/* Libpng version 1.6.33 - September 28, 2017 */
/* Copyright (c) 1998-2017 Glenn Randers-Pehrson */
diff --git a/scripts/symbols.def b/scripts/symbols.def
index 45bcf89..7677d87 100644
--- a/scripts/symbols.def
+++ b/scripts/symbols.def
@@ -1,4 +1,4 @@
-;Version 1.6.32
+;Version 1.6.33
;--------------------------------------------------------------
; LIBPNG symbol list as a Win32 DEF file
; Contains all the symbols that can be exported from libpng
