2020-03-05 05:43:57 -05:00
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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2009-08-20 18:57:38 -04:00
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Changes in TIFF v3.9.0
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<FONT FACE="Helvetica, Arial, Sans">
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<FONT FACE="Helvetica, Arial, Sans">
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<BASEFONT SIZE=4>
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<B><FONT SIZE=+3>T</FONT>IFF <FONT SIZE=+2>C</FONT>HANGE <FONT SIZE=+2>I</FONT>NFORMATION</B>
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<BASEFONT SIZE=3>
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<UL>
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<HR SIZE=4 WIDTH=65% ALIGN=left>
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<B>Current Version</B>: v3.9.0<BR>
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<B>Previous Version</B>: <A HREF=v3.9.0beta.html>v3.9.0beta</a><BR>
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2018-11-10 15:38:21 -05:00
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<B>Master Download Site</B>: <A HREF="https://download.osgeo.org/libtiff">
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2016-09-25 16:05:44 -04:00
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download.osgeo.org</a>, directory pub/libtiff</A><BR>
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<B>Master HTTP Site</B>: <A HREF="http://www.simplesystems.org/libtiff/">
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http://www.simplesystems.org/libtiff/</a>
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2009-08-20 18:57:38 -04:00
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<HR SIZE=4 WIDTH=65% ALIGN=left>
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</UL>
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<P>
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This document describes the changes made to the software between the
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<I>previous</I> and <I>current</I> versions (see above). If you don't
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find something listed here, then it was not done in this timeframe, or
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it was not considered important enough to be mentioned. The following
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information is located here:
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<UL>
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<LI><A HREF="#hightlights">Major Changes</A>
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<LI><A HREF="#configure">Changes in the software configuration</A>
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<LI><A HREF="#libtiff">Changes in libtiff</A>
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<LI><A HREF="#tools">Changes in the tools</A>
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<LI><A HREF="#contrib">Changes in the contrib area</A>
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</UL>
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<p>
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<P><HR WIDTH=65% ALIGN=left>
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<!--------------------------------------------------------------------------->
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<A NAME="highlights"><B><FONT SIZE=+3>M</FONT>AJOR CHANGES:</B></A>
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<UL>
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<li> All of the major changes since 3.8.0 were incorporated in
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the v3.9.0beta release. This is a stable release from a
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stable maintenance branch which incorporates many bug and
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security fixes needed by existing users of 3.X.X series
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libraries. Any future major changes will be in the 4.0.X
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series of releases.
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<!--------------------------------------------------------------------------->
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<A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>
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<UL>
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<li> Updated autotools: Autoconf 2.64, Automake 1.11, libtool
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2.2.6.
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<li> Enabled support for Automake silent build rules
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(--enable-silent-rules or 'make V=0')
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<li> Enabled support for Automake colorized tests.
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<li> Added detection of a 64-bit integer type so that bundled
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utilities (like tiffcrop) can use it when necessary. Note
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that this version of libtiff does not require a 64-bit integer
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type but libtiff 4.0 does.
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<!--------------------------------------------------------------------------->
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<A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A>
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<UL>
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<li> libtiff/{Makefile.am, Makefile.v}: Do not distribute
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tiffconf.h, remove tif_config.h/tiffconf.h during cleaning. As
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per bug <a
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href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1573">http://bugzilla.remotesensing.org/show_bug.cgi?id=1573</a>
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<li> tif_dirinfo.c: _TIFFMergeFields() now only merges in
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field definitions that are missing. Existing definitions are
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silently ignored. (Bug #1585)
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<li> tif_write.c: Rip out the fancy logic in
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TIFFAppendToStrip() for establishing if an existing tile can
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be rewritten to the same location by comparing the current
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size to all the other blocks in the same directory. This is
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dangerous in many situations and can easily corrupt a file.
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(observed in esoteric GDAL situation that's hard to document).
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This change involves leaving the stripbytecount[] values
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unaltered till TIFFAppendToStrip(). Now we only write a block
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back to the same location it used to be at if the new data is
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the same size or smaller - otherwise we move it to the end of
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file.
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<li> tif_dirwrite.c: Try to avoid writing out a full
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readbuffer of tile data when writing the directory just
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because we have BEENWRITING at some point in the past. This
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was causing odd junk to be written out in a tile of data when
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a single tile had an interleaving of reading and writing with
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reading last. (highlighted by gdal
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autotest/gcore/tif_write.py test 7.
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<li> tif_predict.c: use working buffer in PredictorEncodeTile
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to avoid modifying callers buffer. <a
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href="http://trac.osgeo.org/gdal/ticket/1965">http://trac.osgeo.org/gdal/ticket/1965</a>
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<li> tif_predict.c/h, tif_lzw.c, tif_zip.c: Improvements so
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that predictor based encoding and decoding works in read-write
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update mode properly. <a
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href="http://trac.osgeo.org/gdal/ticket/1948">http://trac.osgeo.org/gdal/ticket/1948</a>
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<li> configure.com, libtiff/tif_vms.c: Better OpenVMS
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support. Patches from Alexey Chupahin.
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<li> tif_fax3.c: fix leak of FAXCS state (per bug 1603).
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<li> tif_fax3.c: Make find0span() and find1span() non-inline
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to make MSVC 6.0 compiler happy.
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<li> tif_codec.c: Avoid NULL pointer dereferencing for exotic
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compression codec codes.
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<li> tif_dirread.c: zero tif->tif_dir after freeing the
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directory in TIFFReadCustomDirectory(). I don't exactly
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remember why this was important.
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<li> tif_dirwrite.c: Fix potential memory leak writing large
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double tags.
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<li> tif_dirread.c: Fix unchecked malloc result.
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<li> libtiff/tif_lzw.c: Properly zero out the codetable. As
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per bug <a
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href="http://bugzilla.maptools.org/show_bug.cgi?id=1929">http://bugzilla.maptools.org/show_bug.cgi?id=1929</a>
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<li> libtiff/tif_lzw.c: Properly zero out the string
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table. Fixes CVE-2008-2327 security issue.
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<li> libtiff/tif_jbig.c: Support the JBIG-KIT 2.0
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(compatibility with the older versions retained).
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<li> libtiff/tif_getimage.c,tiffio.h: removed all use of
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UaToAa and Bitmap16to8 arrays in TIFFRGBAImage structure to
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2018-02-24 15:47:52 -05:00
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restore ABI compatibility. These were just an attempt to
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2009-08-20 18:57:38 -04:00
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speed up processing with precalculated tables. <a
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href="http://bugzilla.maptools.org/show_bug.cgi?id=1979">http://bugzilla.maptools.org/show_bug.cgi?id=1979</a>
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<li> libtiff/tif_codec.c: Avoid printing c->name if it does not exist.
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<li> libtiff/tif_getimage.c, tiffio.h: More ABI corrections.
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Removed SubsamplingHor/Ver from TIFFRGBAImage structure. <a
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href="http://bugzilla.maptools.org/show_bug.cgi?id=1980">http://bugzilla.maptools.org/show_bug.cgi?id=1980</a>
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<li> libtiff/tif_jpeg.c: Avoid errors if the application
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writes a full strip for the last partial strip in a jpeg
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compressed file. <a
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href="http://bugzilla.maptools.org/show_bug.cgi?id=1981">http://bugzilla.maptools.org/show_bug.cgi?id=1981</a>
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<li> libtiff/tiffio.h: GCC will now validate format
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specifications for TIFFError(), TIFFErrorExt(), TIFFWarning(),
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and TIFFWarningExt() in order to reveal bugs. Cleaned up
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resulting warnings throughout for 32 bit build only.
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<li> libtiff/tiffiop.h: Add private type declarations for
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int64, and uint64 so that bundled utilities (like tiffcrop)
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can use it when necessary.
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<li> libtiff/tif_predict.c: Add support for 32bit integer
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horz. predictors.
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<a href="http://bugzilla.maptools.org/show_bug.cgi?id=1911">http://bugzilla.maptools.org/show_bug.cgi?id=1911</a>
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<li> libtiff/tif_luv.c: Fix handling of tiled logluv images.
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<a
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href="http://bugzilla.maptools.org/show_bug.cgi?id=2005">http://bugzilla.maptools.org/show_bug.cgi?id=2005</a>
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<li> libtiff/tif_write.c: do not override the planar
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configuration to be contig for one sample files if planar
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configuration is already set. <a
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href="http://bugzilla.maptools.org/show_bug.cgi?id=2057">http://bugzilla.maptools.org/show_bug.cgi?id=2057</a>
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<li> libtiff/tif_lzw.c: Fix buffer underflow bug. <a
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href="http://bugzilla.maptools.org/show_bug.cgi?id=2065">http://bugzilla.maptools.org/show_bug.cgi?id=2065</a>
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<li> libtiff/tif_luv.c: correct return codes from encoderow to
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be 1 on success instead of zero. <a
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href="http://bugzilla.maptools.org/show_bug.cgi?id=2069">http://bugzilla.maptools.org/show_bug.cgi?id=2069</a>
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<li> libtiff/tif_print.c (TIFFPrintDirectory): Applied patch
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for "tag error may cause segfault in tif_print.c." <a
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href="http://bugzilla.maptools.org/show_bug.cgi?id=1896">http://bugzilla.maptools.org/show_bug.cgi?id=1896</a>
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<!-------------------------------------------------------------------------->
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<A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A>
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<UL>
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<li> tools/tiff2pdf.c: Fixed setting of alpha value per report
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on list.
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<li> tools/tiffsplit.c: Get rid of unsafe strcpy()/strcat()
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calls when doing the filename/path construction.
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<li> tools/tiff2pdf.c: More appropriate format string in
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t2p_write_pdf_string(); avoid signed/unsigned mismatch.
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<li> tools/tiffsplit.c: Use dynamically allocated array
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instead of static when constructing output file names.
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<li> tools/tiffcrop.c, man/tiffcrop.1: Incorporated
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significant functionality update from Richard Nolde.
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<li> tools/tiff2ps.c: Incorporated significant functionality
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update from Richard Nolde. In particular, support for
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rotating the image by 90, 180, 270, and 'auto' has been added.
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<li> tools/tiff2ps.c: Remove spurious message printed to
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stderr.
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<li> tools/tiffsplit.c: fix sampleformat to be shortv instead
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of longv.
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<li> tools/{rgb2ycbcr.c, tiff2rgba.c}: Applied patch for
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CVE-2009-2347 libtiff: integer overflows in various
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inter-color space conversion tools. <a
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href="http://bugzilla.maptools.org/show_bug.cgi?id=2079">http://bugzilla.maptools.org/show_bug.cgi?id=2079</a>
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<!--------------------------------------------------------------------------->
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<A NAME="contrib"><B><FONT SIZE=+3>C</FONT>HANGES IN THE CONTRIB AREA:</B></A>
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<UL>
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<li> None
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</UL>
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2016-09-25 16:05:44 -04:00
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Last updated $Date: 2016-09-25 20:05:46 $.
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2009-08-20 18:57:38 -04:00
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</HTML>
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