| The Android Open Source Project | c285fea | 2009-03-03 19:29:20 -0800 | [diff] [blame] | 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 cperciva 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 |
| Gilad Arnold | 99b5374 | 2013-04-30 09:24:14 -0700 | [diff] [blame] | 36 | .Ar oldfile newfile patchfile |
| The Android Open Source Project | c285fea | 2009-03-03 19:29:20 -0800 | [diff] [blame] | 37 | .Sh DESCRIPTION |
| 38 | .Nm |
| 39 | compares |
| Gilad Arnold | 99b5374 | 2013-04-30 09:24:14 -0700 | [diff] [blame] | 40 | .Ar oldfile |
| The Android Open Source Project | c285fea | 2009-03-03 19:29:20 -0800 | [diff] [blame] | 41 | to |
| Gilad Arnold | 99b5374 | 2013-04-30 09:24:14 -0700 | [diff] [blame] | 42 | .Ar newfile |
| The Android Open Source Project | c285fea | 2009-03-03 19:29:20 -0800 | [diff] [blame] | 43 | and writes to |
| Gilad Arnold | 99b5374 | 2013-04-30 09:24:14 -0700 | [diff] [blame] | 44 | .Ar patchfile |
| 45 | a binary patch suitable for use by |
| 46 | .Xr bspatch 1 . |
| The Android Open Source Project | c285fea | 2009-03-03 19:29:20 -0800 | [diff] [blame] | 47 | When |
| Gilad Arnold | 99b5374 | 2013-04-30 09:24:14 -0700 | [diff] [blame] | 48 | .Ar oldfile |
| The Android Open Source Project | c285fea | 2009-03-03 19:29:20 -0800 | [diff] [blame] | 49 | and |
| Gilad Arnold | 99b5374 | 2013-04-30 09:24:14 -0700 | [diff] [blame] | 50 | .Ar newfile |
| The Android Open Source Project | c285fea | 2009-03-03 19:29:20 -0800 | [diff] [blame] | 51 | are two versions of an executable program, the |
| 52 | patches produced are on average a factor of five smaller |
| 53 | than those produced by any other binary patch tool known |
| 54 | to the author. |
| 55 | .Pp |
| 56 | .Nm |
| 57 | uses memory equal to 17 times the size of |
| Gilad Arnold | 99b5374 | 2013-04-30 09:24:14 -0700 | [diff] [blame] | 58 | .Ar oldfile , |
| The Android Open Source Project | c285fea | 2009-03-03 19:29:20 -0800 | [diff] [blame] | 59 | and requires |
| 60 | an absolute minimum working set size of 8 times the size of oldfile. |
| 61 | .Sh SEE ALSO |
| 62 | .Xr bspatch 1 |
| 63 | .Sh AUTHORS |
| 64 | .An Colin Percival Aq cperciva@freebsd.org |