Module Name: othersrc
Committed By: agc
Date: Fri Jan 11 06:27:01 UTC 2013
Update of /cvsroot/othersrc/external/bsd/binpatch
In directory ivanova.netbsd.org:/tmp/cvs-serv26282
Log Message:
Import a binary patch library, libbinpatch(3), and program,
binpatch(1), into the othersrc repository. This can be used to encode
a binary patch file from an original file, and a new file. To do
this, 3 separate "instructions" are used, similar to those outlined in
RFC 3284 -
+ add - addition of new data
+ copy - copying of data from original file
+ run - a run of characters, similar to memset(3)
The binary patches generated here are a much simplified form of those
described in the RFC, but have 64bit offsets and 32bit sizes in the
instructions. The generated binary patch files are also much smaller
than the original files, and even standard diffs, and are only just
larger then the equivalent vcdiff binary patch file.
% diff f1 f2 | wc
58 338 1969
% diff -u f1 f2 | wc
85 408 2530
% binpatch -e f1 f2 | wc
44 269 1801
% vcdiff encode -dictionary f1 -target f2 | wc
40 257 1663
(The last is the Google vcdiff program found in pkgsrc/devel/open-vcdiff)
The binpatch(1) program can be used to generate binary patch files,
and to reconstruct the target files, in the following way
% binpatch -e -o patch f1 f2
% binpatch -f f1 -o recon patch
% diff f2 recon
% rm -f recon
% binpatch -v -f f1 -o recon patch
Add 1337 bytes
Copy 187 bytes from 0
Copy 386 bytes from 198
Add 50 bytes
Copy 173 bytes from 592
Add 55 bytes
Copy 373 bytes from 816
Add 74 bytes
Copy 34 bytes from 1189
Add 182 bytes
Copy 23 bytes from 1262
diff f2 recon
% diff f2 recon
% rm -f recon
binpatch(1) uses libbinpatch(3) and libnetdiff(3) to encode binary
patch files, and libbinpatch(3) to decode binary patch files.
Status:
Vendor Tag: CROOKS
Release Tags: binpatch-base
N othersrc/external/bsd/binpatch/Makefile
N othersrc/external/bsd/binpatch/bin/007.expected
N othersrc/external/bsd/binpatch/bin/Makefile
N othersrc/external/bsd/binpatch/bin/f1
N othersrc/external/bsd/binpatch/bin/f2
N othersrc/external/bsd/binpatch/dist/Makefile
N othersrc/external/bsd/binpatch/dist/binpatch.c
N othersrc/external/bsd/binpatch/dist/binpatch.h
N othersrc/external/bsd/binpatch/dist/main.c
N othersrc/external/bsd/binpatch/dist/libbinpatch.3
N othersrc/external/bsd/binpatch/dist/binpatch.1
N othersrc/external/bsd/binpatch/lib/Makefile
N othersrc/external/bsd/binpatch/lib/shlib_version
No conflicts created by this import
