Initial commit

Signed-off-by: Patrick McCarty <[email protected]>

.clang-format

@@ -0,0 +1,67 @@
+---
+Language:        Cpp
+# BasedOnStyle:  LLVM
+AccessModifierOffset: -2
+AlignAfterOpenBracket: true
+AlignConsecutiveAssignments: false
+AlignEscapedNewlinesLeft: false
+AlignOperands:   true
+AlignTrailingComments: true
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: All
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: false
+BinPackArguments: true
+BinPackParameters: true
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Linux
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializersBeforeComma: false
+ColumnLimit:     0
+CommentPragmas:  '^ IWYU pragma:'
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: true
+DerivePointerAlignment: false
+DisableFormat:   false
+ExperimentalAutoDetectBinPacking: false
+ForEachMacros:   [ foreach, Q_FOREACH, BOOST_FOREACH ]
+IndentCaseLabels: false
+IndentWidth:     8
+IndentWrappedFunctionNames: false
+KeepEmptyLinesAtTheStartOfBlocks: true
+MacroBlockBegin: ''
+MacroBlockEnd:   ''
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: None
+ObjCBlockIndentWidth: 2
+ObjCSpaceAfterProperty: false
+ObjCSpaceBeforeProtocolList: true
+PenaltyBreakBeforeFirstCallParameter: 19
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1000
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 60
+PointerAlignment: Right
+SpaceAfterCStyleCast: false
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeParens: ControlStatements
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles:  false
+SpacesInContainerLiterals: true
+SpacesInCStyleCastParentheses: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+Standard:        Cpp11
+TabWidth:        8
+UseTab:          Always
+...
+

.gitignore

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+*.o
+.libs/
+*.lo
+*.pc
+config.*
+.deps/
+aclocal.m4
+autom4te.cache/
+Makefile
+Makefile.in
+bsdiff
+bsdump
+bspatch
+compile
+configure
+depcomp
+install-sh
+libbsdiff.la
+libtool
+ltmain.sh
+m4/
+missing
+src/.dirstamp
+stamp-h1
+bsdiff-*.tar.xz
+test/*.diff
+test/*.out

COPYING

@@ -0,0 +1,23 @@
+Copyright 2003-2005 Colin Percival
+All rights reserved
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted providing that the following conditions 
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.

Makefile.am

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+ACLOCAL_AMFLAGS = -I m4
+
+AM_CFLAGS = \
+	-fno-common \
+	-fstack-protector \
+	-std=gnu99 \
+	-Wall \
+	-Wformat \
+	-Wformat-security \
+	-Wimplicit-function-declaration \
+	-Wno-conversion \
+	-Wstrict-prototypes \
+	-Wundef \
+	-Wunreachable-code \
+	-Wunused-variable
+
+AM_CPPFLAGS = \
+	$(AM_CFLAGS) \
+	-D_FORTIFY_SOURCE=2 \
+	-I$(top_srcdir)/include
+
+EXTRA_DIST = \
+	COPYING \
+	findstatic.pl \
+	README.chromium \
+	src/bsdiff.sym
+
+AUTOMAKE_OPTIONS = color-tests parallel-tests
+
+if COVERAGE
+coverage:
+	mkdir -p coverage
+	lcov --compat-libtool --directory . --capture --output-file coverage/report
+	genhtml -o coverage/ coverage/report
+AM_CFLAGS += --coverage
+endif
+
+bin_PROGRAMS = \
+	bsdiff \
+	bsdump \
+	bspatch
+
+bsdump_SOURCES = \
+	src/dump_main.c
+
+bsdump_LDADD = \
+	libbsdiff.la
+
+bsdiff_SOURCES = \
+	src/diff_main.c
+
+bsdiff_LDADD = \
+	libbsdiff.la
+
+bspatch_SOURCES = \
+	src/patch_main.c
+
+bspatch_LDADD = \
+	libbsdiff.la
+
+lib_LTLIBRARIES = \
+	libbsdiff.la
+
+libbsdiff_la_SOURCES = \
+	src/diff.c \
+	src/patch.c
+
+libbsdiff_la_LIBADD = \
+	$(zlib_LIBS)
+
+if ENABLE_LZMA
+libbsdiff_la_LIBADD += \
+	$(lzma_LIBS)
+endif
+
+pkgconfiglibdir=$(libdir)/pkgconfig
+pkgconfiglib_DATA = \
+	data/bsdiff.pc
+
+include_HEADERS = \
+	include/bsdiff.h
+
+noinst_HEADERS = \
+	src/bsheader.h
+
+# Library version changes according to the libtool convention:
+# http://www.gnu.org/software/libtool/manual/libtool.html#Updating-version-info
+LIBBSDIFF_CURRENT=1
+LIBBSDIFF_REVISION=0
+LIBBSDIFF_AGE=0
+libbsdiff_la_LDFLAGS = \
+	-version-info $(LIBBSDIFF_CURRENT):$(LIBBSDIFF_REVISION):$(LIBBSDIFF_AGE) \
+	-Wl,--version-script=$(top_srcdir)/src/bsdiff.sym
+
+distclean-local:
+	rm -rf aclocal.m4 ar-lib autom4te.cache config.guess config.h.in config.h.in~ config.sub configure depcomp install-sh ltmain.sh m4 Makefile.in missing compile
+
+install-exec-hook:
+	perl findstatic.pl */*.o | grep -v Checking ||:
+
+check_PROGRAMS =
+
+release:
+	@git rev-parse v$(PACKAGE_VERSION) &> /dev/null; \
+	if [ "$$?" -eq 0 ]; then \
+		echo "Error: Release $(PACKAGE_VERSION) already exists."; \
+		echo "Bump version in configure.ac before releasing."; \
+		exit 1; \
+	fi
+	@git tag -a -m "$(PACKAGE_NAME) release $(PACKAGE_VERSION)" v$(PACKAGE_VERSION)
+	@printf "\nNew release $(PACKAGE_VERSION) tagged!\n\n"

README

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+This project is a forked version of BSDiff, as taken from the Chromium project
+at SVN Revision 122769. See README.chromium for background on its origins.
+
+Significant changes after the fork include:
+
+- Changing the BSDiff file format to support file owner, group, and permission
+  information.
+- Adding more robust error handling.
+- Adding a new program, bsdump, that outputs BSDiff header information.
+- Converting the core functionality into a library, libbsdiff, with public API
+  functions make_bsdiff_delta() and apply_bsdiff_delta().

README.chromium

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+The README below was taken from a snapshot of the Chromium project at:
+svn - Revision 122769: /trunk/src/chrome/installer/mac/third_party/bsdiff
+
+For information specific to the fork as implemented in this project, see the
+main README file.
+
+---
+
+Name: BSDiff
+URL: http://www.daemonology.net/bsdiff/
+Source URL: http://www.daemonology.net/bsdiff/bsdiff-4.3.tar.gz
+Version: 4.3
+License: BSD
+License File: LICENSE
+
+Description:
+Binary diff/patch utility. There are other copies of BSDiff in the Chromium
+repository, but they're all different. The other copies are based on Mozilla's
+fork of BSDiff, which serves a different set of needs. Relative to upstream
+BSDiff, Mozilla's version removes all compression, adds a CRC-32 check of the
+original file, replaces the custom off_t encoding with signed 32-bit
+big-endian integers, and contains a total reorganization of the code. The
+version in this directory contains no Mozilla code and builds directly on the
+upstream version. It retains and enhances the compression, uses SHA1 to check
+both the original file and the patched file, uses a different off_t encoding
+more compatible with the original, and involves minimal changes to the
+original code.
+
+Theoretically, a hash of the original file should be enough to guarantee data
+integrity, but in the event of algorithmic or programming bugs or other
+unexpected conditions, a hash of the patched file provides a better guarantee.
+This implementation now checks the integrity of both the original and the
+patched files. SHA1, rather than CRC-32, is used to minimize the likelihood
+that an original file that has been intentionally tampered with will produce
+an altered patched file without being detected.
+
+Local Modifications:
+ - Added LICENSE file by copying the license block from bsdiff.c and
+   bspatch.c.
+ - The following modifications are relative to the original unpatched version,
+   checked in to the Chromium repository at r49280.
+ - Created goobsdiff.gyp for GYP build system integration.
+ - Renamed bsdiff.c to goobsdiff.c and bspatch.c to goobspatch.c.
+ - Added sha1_adapter.cc, sha1_adapter.h, and empty.cc to facilitate hashing.
+ - Added #include <sys/types.h> to goobspatch.c so that it compiles. (Oops!)
+ - Changed the magic number in the header from BSDIFF40 to BSDIFF4G.
+ - Expanded the header to include SHA1 hashes of the original and new files,
+   and added hash checks to the patcher.
+ - Expanded the header to include the lengths of the control, diff, and extra
+   blocks in the patch file, and added patch file length validation to the
+   patcher.
+ - Replaced custom off_t encoding with signed 64-bit little-endian integers.
+ - The control, diff, and extra blocks can be compressed with bzip2, gzip, or
+   xz/lzma2, or left uncompressed, independently of one another, depending on
+   which is smallest. This often results in a net reduction in patch size of
+   about 3%-5%.
+ - Error messages in the patcher are slightly more descriptive.
+ - The patcher treats a few more unexpected read cases as errors than it did
+   previously. This will theoretically cause it to exit with an error instead
+   of sitting in a busy loop or crashing when certain malformatted patch files
+   are provided.

autogen.sh

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+#!/bin/sh
+
+set -e
+
+autoreconf --force --install --symlink --warnings=all
+
+args="\
+--prefix=/usr"
+
+if test -z "${NOCONFIGURE}"; then
+  ./configure $args "$@"
+  make clean
+fi