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| 1 .\"- |
| 2 .\" Copyright 2003-2005 Colin Percival |
| 3 .\" All rights reserved |
| 4 .\" |
| 5 .\" Redistribution and use in source and binary forms, with or without |
| 6 .\" modification, are permitted providing that the following conditions |
| 7 .\" are met: |
| 8 .\" 1. Redistributions of source code must retain the above copyright |
| 9 .\" notice, this list of conditions and the following disclaimer. |
| 10 .\" 2. Redistributions in binary form must reproduce the above copyright |
| 11 .\" notice, this list of conditions and the following disclaimer in the |
| 12 .\" documentation and/or other materials provided with the distribution. |
| 13 .\" |
| 14 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 15 .\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 16 .\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 17 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| 18 .\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 19 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 20 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 21 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 22 .\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 23 .\" IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 24 .\" POSSIBILITY OF SUCH DAMAGE. |
| 25 .\" |
| 26 .\" $FreeBSD: src/usr.bin/bsdiff/bsdiff/bsdiff.1,v 1.1 2005/08/06 01:59:05 cperc
iva Exp $ |
| 27 .\" |
| 28 .Dd May 18, 2003 |
| 29 .Dt BSDIFF 1 |
| 30 .Os FreeBSD |
| 31 .Sh NAME |
| 32 .Nm bsdiff |
| 33 .Nd generate a patch between two binary files |
| 34 .Sh SYNOPSIS |
| 35 .Nm |
| 36 .Ao Ar oldfile Ac Ao Ar newfile Ac Ao Ar patchfile Ac |
| 37 .Sh DESCRIPTION |
| 38 .Nm |
| 39 compares |
| 40 .Ao Ar oldfile Ac |
| 41 to |
| 42 .Ao Ar newfile Ac |
| 43 and writes to |
| 44 .Ao Ar patchfile Ac |
| 45 a binary patch suitable for use by bspatch(1). |
| 46 When |
| 47 .Ao Ar oldfile Ac |
| 48 and |
| 49 .Ao Ar newfile Ac |
| 50 are two versions of an executable program, the |
| 51 patches produced are on average a factor of five smaller |
| 52 than those produced by any other binary patch tool known |
| 53 to the author. |
| 54 .Pp |
| 55 .Nm |
| 56 uses memory equal to 17 times the size of |
| 57 .Ao Ar oldfile Ac , |
| 58 and requires |
| 59 an absolute minimum working set size of 8 times the size of oldfile. |
| 60 .Sh SEE ALSO |
| 61 .Xr bspatch 1 |
| 62 .Sh AUTHORS |
| 63 .An Colin Percival Aq cperciva@freebsd.org |
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Chromium Code Reviews
Issue 2789003:
Add unpatched bsdiff 4.3 to chrome/installer/mac/third_party/bsdiff (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/