2 .\" Copyright 2003-2005 Colin Percival
3 .\" All rights reserved
5 .\" Redistribution and use in source and binary forms, with or without
6 .\" modification, are permitted providing that the following conditions
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.
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
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18 .\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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31 .Nd apply a patch built with
35 .Ar oldfile newfile patchfile
48 is a binary patch built by
54 uses memory equal to the size of
58 but can tolerate a very small working set without a dramatic loss
63 .An Colin Percival Aq Mt cperciva@FreeBSD.org
67 utility does not verify that
69 is the correct source file for
71 Attempting to apply a patch to the wrong file will usually produce
72 garbage; consequently it is strongly recommended that users of
76 matches the source file from which
78 was built, by comparing cryptographic hashes, for example.
79 Users may also wish to verify after running
83 matches the target file from which