png: update to 1.6.34.

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.

Version 1.6.34 [September 29, 2017]
  Removed contrib/pngsuite/i*.png; some of these were incorrect and caused
    test failures.

2 files changed, 7 insertions, 7 deletions

diff --git a/graphics/png/Makefile b/graphics/png/Makefile
index 611e5d8f5b9..e4377a3adc1 100644
--- a/graphics/png/Makefile
+++ b/graphics/png/Makefile
@@ -1,6 +1,6 @@
-# $NetBSD: Makefile,v 1.194 2017/08/26 05:50:00 wiz Exp $
+# $NetBSD: Makefile,v 1.195 2017/10/02 09:24:30 wiz Exp $
 
-DISTNAME=	libpng-1.6.32
+DISTNAME=	libpng-1.6.34
 PKGNAME=	${DISTNAME:S/lib//}
 CATEGORIES=	graphics
 MASTER_SITES=	https://ftp-osl.osuosl.org/pub/libpng/src/archive/xz/libpng16/
diff --git a/graphics/png/distinfo b/graphics/png/distinfo
index ea5f67a84d3..5e11edf72ea 100644
--- a/graphics/png/distinfo
+++ b/graphics/png/distinfo
@@ -1,7 +1,7 @@
-$NetBSD: distinfo,v 1.138 2017/08/26 05:50:00 wiz Exp $
+$NetBSD: distinfo,v 1.139 2017/10/02 09:24:30 wiz Exp $
 
-SHA1 (libpng-1.6.32.tar.xz) = 161d91d15cfd739773e0a73b41032b9f27322914
-RMD160 (libpng-1.6.32.tar.xz) = e0998ca79f73457c086b248ab06b31fad414e061
-SHA512 (libpng-1.6.32.tar.xz) = 24cf4d38dc08d1db7721fc580d8bf6cee9a105afcea32f1245b7bb3727c8a8645ad733a24534782ef5dfb0d4315a5fd6b0eee9e7f0704e0c635350f80c19a708
-Size (libpng-1.6.32.tar.xz) = 997136 bytes
+SHA1 (libpng-1.6.34.tar.xz) = 45de4ec996ffcc3e18037e7c128abe95f4d0292a
+RMD160 (libpng-1.6.34.tar.xz) = cc14798ac8ab2a69f2ca6153c3b52452a972b9ae
+SHA512 (libpng-1.6.34.tar.xz) = 89407c5abc1623faaa3992fc1e4a62def671d9a7401108dfceee895d5f16fe7030090bea89b34a36d377d8e6a5d40046886991f663ce075d1a2d31bf9eaf3c51
+Size (libpng-1.6.34.tar.xz) = 997968 bytes
 SHA1 (patch-pngpriv.h) = 3da29edb5d89ab26b9787a71b87c3fd8f451ea39