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f52523701c
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Tor Egge f52523701c Fix two problems with pipe_write(): 
1. Data written beyond end of pipe buffer, causing kernel memory corruption.

    - Check that space is still valid after obtaining the pipe lock.

    - Defer the calculation of transfer size until the pipe
      lock has been obtained.

    - Update the pipe buffer pointers while holding the pipe lock.

 2. Writes of size <= PIPE_BUF not always atomic.

    - Allow an internal write to span two contiguous segments,
      so writes of size <= PIPE_BUF can be kept atomic
      when wrapping around from the end to the start of the
      pipe buffer.

PR:		15235
Reviewed by:	Matt Dillon <dillon@FreeBSD.org>
1999-12-13 02:55:47 +00:00
bin I've been Brucified! I did evil things with typedefs, but I'll do it 1999-12-08 02:44:46 +00:00
contrib Do not add routes for localhost to the `dhclient' controlled interface. 1999-12-12 01:04:36 +00:00
crypto Add the PAM SSH RSA key authentication module. For example, you can add, 1999-11-29 07:09:44 +00:00
etc Exercise sufficient editorial license and further shorten motd. 1999-12-13 00:58:53 +00:00
games -Wall fixes. 1999-12-12 07:25:14 +00:00
gnu reactivate cvs subdir build 1999-12-11 17:32:07 +00:00
include Revert previous commit. 1999-12-09 09:35:36 +00:00
kerberos5 Bring in SRA for telnet. 1999-10-07 18:59:55 +00:00
kerberosIV Bring in SRA for telnet. 1999-10-07 18:59:55 +00:00
lib Add MAP_NOSYNC feature to mmap(), and MADV_NOSYNC and MADV_AUTOSYNC to 1999-12-12 03:19:33 +00:00
libexec Correct the ttys.5 and init.8 manpages with respect to the incorrect 1999-12-06 09:07:14 +00:00
release Note that Tekram controllers are supported again. 1999-12-12 21:06:44 +00:00
sbin First version of HPFS stuff. 1999-12-09 19:10:13 +00:00
secure Dont build telenet if we are going for kerberised telnet; this just 1999-10-12 19:48:05 +00:00
share explain that ioflags can be used to give read-ahead hints to the underlying 1999-12-13 02:28:53 +00:00
sys Fix two problems with pipe_write(): 1999-12-13 02:55:47 +00:00
tools Use install -C -p instead of cp -p. 1999-12-10 10:14:06 +00:00
usr.bin Allow it to be compiled as cross-tool. 1999-12-12 21:16:46 +00:00
usr.sbin Add a 'warning' option for the files* files. This is intended to enable 1999-12-12 09:38:48 +00:00
COPYRIGHT Update to add the July 22, 1999 addendum. 1999-09-05 21:33:47 +00:00
Makefile Oops! bypassing Makefile.inc0 without adding a `world' target is not 1999-12-08 18:10:15 +00:00
Makefile.inc0 $Id$ -> $FreeBSD$ 1999-08-28 01:35:59 +00:00
Makefile.inc1 Add colldef to the list of tools. It's needed on older systems. 1999-12-12 22:24:08 +00:00
Makefile.upgrade $Id$ -> $FreeBSD$ 1999-08-28 01:35:59 +00:00
README $Id$ -> $FreeBSD$ 1999-08-28 01:35:59 +00:00
UPDATING "raw" -> "block" Block devices have been what are now gone, not "raw" 1999-12-06 22:42:01 +00:00

README 

This is the top level of the FreeBSD source directory.  This file
was last revised on:
$FreeBSD$

For copyright information, please see the file COPYRIGHT in this
directory (additional copyright information also exists for some
sources in this tree - please see the specific source directories for
more information).

The Makefile in this directory supports a number of targets for
building components (or all) of the FreeBSD source tree, the most
commonly used one being ``world'', which rebuilds and installs
everything in the FreeBSD system from the source tree except the
kernel and the contents of /etc.  Please see the top of the Makefile
in this directory for more information on the standard build targets
and compile-time flags.

Building a kernel with config(8) is a somewhat more involved process,
documentation for which can be found at:
   http://www.freebsd.org/handbook/kernelconfig.html
And in the config(8) man page.

The sample kernel configuration files reside in the sys/i386/conf
sub-directory (assuming that you've installed the kernel sources), the
file named GENERIC being the one used to build your initial installation
kernel.  The file LINT contains entries for all possible devices, not
just those commonly used, and is meant more as a general reference
than an actual kernel configuration file (a kernel built from it
wouldn't even run).


Source Roadmap:
---------------
bin		System/User commands.

contrib		Packages contributed by 3rd parties.

crypto		Export controlled stuff (see crypto/README).

etc		Template files for /etc

games		Amusements.

gnu		Various commands and libraries under the GNU Public License.
		Please see gnu/COPYING* for more information.

include		System include files.

kerberosIV	Kerberos package.

lib		System libraries.

libexec		System daemons.

release		Release building Makefile & associated tools.

sbin		System commands.

secure		DES and DES-related utilities - NOT FOR EXPORT!

share		Shared resources.

sys		Kernel sources.

tools		Utilities for regression testing and miscellaneous tasks.

usr.bin		User commands.

usr.sbin	System administration commands.


For information on synchronizing your source tree with one or more of
the FreeBSD Project's development branches, please see:

  http://www.freebsd.org/handbook/synching.html