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Ed Schouten c0086bf202 Serialize write() calls on TTYs. 
Just like the old TTY layer, the current MPSAFE TTY layer does not make
any attempt to serialize calls of write(). Data is copied into the
kernel in 256 (TTY_STACKBUF) byte chunks. If a write() call occurs at
the same time, the data may interleave. This is especially likely when
the TTY starts blocking, because the output queue reaches the high
watermark.

I've implemented this by adding a new flag, TTY_BUSY_OUT, which is used
to mark a TTY as having a thread stuck in write(). Because I don't want
non-blocking processes to be possibly blocked by a sleeping thread, I'm
still allowing it to bypass the protection. According to this message,
the Linux kernel returns EAGAIN in such cases, but I think that's a
little too restrictive:

	http://kerneltrap.org/index.php?q=mailarchive/linux-kernel/2007/5/2/85418/thread

PR:		kern/118287
2009-02-11 16:28:49 +00:00
..
ac
accton
acpi Update to reflect reality: 2008-05-20 12:07:02 +00:00
adduser The original adduser/rmuser scripts in Perl used to modify the PATH 2008-07-30 18:37:21 +00:00
amd Don't always link statically with libwrap. By the time amd(8) 2008-03-29 18:13:15 +00:00
ancontrol Remove duplicate headers <sys/socket.h> 2008-04-21 07:25:26 +00:00
apm
apmd getopt(3) returns -1, not EOF when out of args. 2007-02-05 07:35:23 +00:00
arp This checkin addresses a couple of issues: 2008-12-26 19:45:24 +00:00
asf Make grammar a bit more consistent in this document. 2006-12-20 06:21:51 +00:00
audit Merge OpenBSM 1.1 alpha 2 from the OpenBSM vendor branch to head, both 2008-12-02 23:26:43 +00:00
auditd Merge OpenBSM alpha 4 from OpenBSM vendor branch to head, both 2008-12-31 11:12:24 +00:00
auditreduce auditreduce now requires OpenBSM's config/config.h, so add that to the 2006-09-25 11:56:20 +00:00
authpf Do not bypass WARNS machinery by hadcoding -Werror into CFLAGS. 2006-09-21 18:16:22 +00:00
bluetooth Clenup code a bit and do not call fork(2) before dameon(3) where not needed. 2009-02-04 22:04:06 +00:00
boot0cfg Extend the geom-related info and put in the NOTE section, not 2009-01-13 21:55:39 +00:00
boot98cfg Correct typo in usage message. 2007-12-19 03:31:44 +00:00
bootparamd Remove a useless cast. 2008-08-02 00:10:02 +00:00
bsnmpd Only build the bsnmpd netgraph module if MK_NETGRAPH_SUPPORT is set. 2008-10-02 14:26:56 +00:00
btxld Allow for a zero length 'loader'. 2008-04-05 10:26:20 +00:00
burncd Correct the type for the global var accessed in sig handlers. 2009-01-05 16:47:42 +00:00
cdcontrol - Enhance volume handling 2008-07-14 13:22:09 +00:00
chkgrp Fix a bug introduced in revision 1.9 which causes chkgrp to coredump on 2005-08-25 17:01:06 +00:00
chown
chroot
ckdist Constify return value of stripath and avoid unnecessary deconst 2008-11-19 00:09:01 +00:00
clear_locks Add missing library dependency. 2008-03-29 18:07:06 +00:00
config Move the comment to it's correct place. 2009-02-07 11:40:47 +00:00
cpucontrol - use .Ex macro in EXIT STATUS section 2009-01-07 01:31:09 +00:00
crashinfo Add a script to perform simple analysis of a crash dump (either a full 2008-08-05 20:41:46 +00:00
cron Fix typo. 2008-12-01 17:39:34 +00:00
crunch Run with -B and just .POSIX. 2009-01-31 07:03:36 +00:00
ctm
cxgbtool - Fix regression with GETMEM 2008-09-10 01:10:17 +00:00
daemon Unbreak rev 1.7's getopt usage. The -f switch does not take an argument. 2007-04-19 16:43:30 +00:00
dconschat Set the default escape character as described in the manpage of dconschat(8). 2007-07-12 13:08:00 +00:00
devinfo Bump up the limit for when to print the resources for a given resource 2007-10-27 13:06:15 +00:00
digictl
diskinfo Print provider's ident when in verbose mode. 2007-05-06 00:25:21 +00:00
dnssec-keygen Update bmake glue for the BIND 9.4.1 import. 2007-06-02 23:19:58 +00:00
dnssec-signzone Update bmake glue for the BIND 9.4.1 import. 2007-06-02 23:19:58 +00:00
dumpcis damn. Always do make depend. Forgot to recompile main because of it, 2008-11-20 08:32:19 +00:00
editmap
edquota Drag this code kicking and screaming into the twenty-first century. 2008-07-02 15:51:59 +00:00
eeprom Flush my typo fix queue for this directory. 2006-12-05 23:20:14 +00:00
extattr Invoke err() with a format string rather than directly with a passed 2008-07-15 16:07:34 +00:00
extattrctl
faithd Cleanup of userland __P use 2007-11-07 10:53:41 +00:00
fdcontrol Force the use of the tbl(1) preprocessor. 2006-10-25 10:44:59 +00:00
fdformat Fix a nit noticed during translation. 2007-02-28 10:24:34 +00:00
fdread Remove unused variables. 2006-07-20 09:38:46 +00:00
fdwrite
fifolog The last sector in the first segment might just be a sync, increment before 2009-02-02 14:30:07 +00:00
flowctl
freebsd-update In freebsd-update IDS, strip out file flags before we look for 2008-08-08 04:34:00 +00:00
ftp-proxy Link pf 4.1 to the build: 2007-07-03 12:46:08 +00:00
fwcontrol Begin basic improvements to fwcontrol in the area of handling 2009-02-02 21:05:12 +00:00
getfmac
getpmac
gssd - Remove superfluous comment 2009-01-30 15:28:56 +00:00
gstat - Allow gstat to print values to different kind of outputs. 2008-10-07 10:25:27 +00:00
i2c Introduce the I2C diagnostic utility. It let's discover and inspect slave 2009-01-26 14:00:50 +00:00
ifmcstat mdoc fix: Add missing .El request 2007-10-30 16:04:23 +00:00
inetd o inetd(8) requires wait/nowait column in inetd.conf for 2008-01-12 21:09:48 +00:00
iostat Fix the device name spacing. 2008-09-11 09:55:54 +00:00
ip6addrctl Cleanup of userland __P use 2007-11-07 10:53:41 +00:00
ipfwpcap Add a signal handler for SIGINT to make sure that the PID file 2007-10-12 14:57:39 +00:00
IPXrouted Use printf formats which match the variable types without casts so we 2007-11-17 23:09:39 +00:00
jail New sentence starts on a new line. 2009-01-24 15:56:44 +00:00
jexec Correctly check the number of prison states to not access anything 2008-12-11 01:04:25 +00:00
jls Make sure that the direct jls invocations prints something 2008-12-14 16:56:47 +00:00
kbdcontrol Some clarifications to make keyboard configuration under syscons. 2008-01-29 18:28:50 +00:00
kbdmap Output keymap choice to stderr so it is easier to parse for apps chained to 2007-08-27 21:56:42 +00:00
kernbb
keyserv Cleanup of userland __P use 2007-11-07 10:53:41 +00:00
kgmon Correct a typo 2006-06-29 09:18:16 +00:00
kgzip
kldxref various cleanups including: 2009-01-06 14:23:38 +00:00
lastlogin
lmcconfig Style. 2006-09-01 09:24:28 +00:00
lpr use bigger local variable to calculate free space 2008-09-01 12:32:40 +00:00
lptcontrol
mailstats
mailwrapper Markup fixes. 2006-09-29 17:57:04 +00:00
makefs fix pathnames to work w/ buildworld 2008-12-19 22:59:05 +00:00
makemap
manctl
memcontrol
mergemaster Instead of using obj and all targets which are not cross-build aware, 2009-01-04 20:59:23 +00:00
mixer mixer(8) is WARNS=6 clean since 1.25. 2008-03-16 08:06:36 +00:00
mld6query - rename the RETURN VALUES section to EXIT STATUS 2009-01-07 00:59:34 +00:00
mlxcontrol Make mlxcontrol work with more than one system drive: 2008-09-12 17:40:17 +00:00
mount_nwfs Use sysctlbyname() instead of sysctl 2006-05-11 17:23:57 +00:00
mount_portalfs Decrease to WARNS=3. 2007-01-20 23:24:11 +00:00
mount_smbfs Convert mount_smbfs to use nmount(). 2005-11-16 02:47:12 +00:00
mountd Implement support for RPCSEC_GSS authentication to both the NFS client 2008-11-03 10:38:00 +00:00
moused Improve the virtual scrolling mechanism to make middle clicking less 2008-05-15 15:05:02 +00:00
mptable
mtest Import rewrite of IPv4 socket multicast layer to support source-specific 2007-06-12 16:24:56 +00:00
mtree Write timestamps with exactly 9 digits after the period. 2009-01-31 05:17:28 +00:00
named Update bmake glue for the BIND 9.4.1 import. 2007-06-02 23:19:58 +00:00
named-checkconf Update bmake glue for the BIND 9.4.1 import. 2007-06-02 23:19:58 +00:00
named-checkzone Update bmake glue for the BIND 9.4.1 import. 2007-06-02 23:19:58 +00:00
named.reload
ndiscvt Integrate the NDIS USB support code to CURRENT. 2008-12-27 08:03:32 +00:00
ndp This checkin addresses a couple of issues: 2008-12-26 19:45:24 +00:00
newsyslog Fix 6-year old cut&paste error. The # could be escaped with '\', not 2008-06-26 07:02:47 +00:00
nfsd Implement support for RPCSEC_GSS authentication to both the NFS client 2008-11-03 10:38:00 +00:00
ngctl Modify the DoParseCommand() to work on (const char *) instead of just 2008-06-28 12:31:30 +00:00
nghook
nologin Update nologin(5) to match the modern reality of login.conf(5) and PAM. 2007-05-10 11:22:24 +00:00
nscd o Correct a database name: "group" not "groups". 2008-12-22 13:36:15 +00:00
ntp - fix typo 2008-11-18 23:38:47 +00:00
nvram Revise markup. 2006-09-30 19:07:03 +00:00
ofwdump De-sparc64-ify (now that it's also installed on PowerPC). 2008-01-31 14:58:55 +00:00
pciconf - Add a new ioctl to /dev/pci to fetch details on an individual BAR of a 2009-02-02 19:54:16 +00:00
periodic - The weekly periodic runs occur on Saturday mornings, not on Sunday mornings 2007-09-07 21:54:45 +00:00
pkg_install Use full name (noticed by: ru@ 2009-01-11 13:56:55 +00:00
pmcannotate Import an initial revision of the pmcannotate tool. 2008-11-26 21:44:57 +00:00
pmccontrol Ignore absent CPUs when listing the current state of PMC hardware. 2008-11-16 04:26:38 +00:00
pmcstat Close the read side of the pipe to self when exiting. 2008-12-23 12:08:06 +00:00
pnpinfo Remove alpha left-overs. 2006-08-22 08:03:01 +00:00
portsnap - remove superfluous word 2008-09-15 16:30:06 +00:00
powerd Fix a typo higter->higher. 2008-12-24 09:17:30 +00:00
ppp The ppp application relies on the if_tun interface to properly 2008-12-19 01:37:20 +00:00
pppctl
pppd Add missing <stdlib.h> for exit() 2007-11-07 10:57:35 +00:00
pppstats Cleanup of userland __P use 2007-11-07 10:53:41 +00:00
praliases
praudit Enable building of OpenBSM command line tools: 2006-02-02 10:15:30 +00:00
procctl
pstat Serialize write() calls on TTYs. 2009-02-11 16:28:49 +00:00
pw Use arc4random_uniform() to avoid "modulo bias" 2008-08-16 15:41:03 +00:00
pwd_mkdb
quot Make `quot -a' work when we've got slashes in the device name. 2008-09-14 11:50:19 +00:00
quotaon Drag this code kicking and screaming into the twenty-first century. 2008-07-02 15:51:59 +00:00
rarpd
raycontrol
repquota Drag this code kicking and screaming into the twenty-first century. 2008-07-02 15:51:59 +00:00
rip6query Cleanup of userland __P use 2007-11-07 10:53:41 +00:00
rmt
rndc Update bmake glue for the BIND 9.4.1 import. 2007-06-02 23:19:58 +00:00
rndc-confgen Update bmake glue for the BIND 9.4.1 import. 2007-06-02 23:19:58 +00:00
route6d This main goals of this project are: 2008-12-15 06:10:57 +00:00
rpc.lockd Re-implement the client side of rpc.lockd in the kernel. This implementation 2008-06-26 10:21:54 +00:00
rpc.statd Re-implement the client side of rpc.lockd in the kernel. This implementation 2008-06-26 10:21:54 +00:00
rpc.umntall
rpc.yppasswdd - Whenever a password/shell is changed via rpc.yppasswdd, the daemon leaves 2008-10-30 01:54:31 +00:00
rpc.ypupdated Kill blank line at EOF. 2007-02-15 02:45:14 +00:00
rpc.ypxfrd o There is no securenets(5) man page, refer to ypserv(8). 2006-11-02 07:36:33 +00:00
rpcbind No network addresses in the system isn't a good excuse 2008-02-14 20:12:23 +00:00
rrenumd - rename the RETURN VALUES section to EXIT STATUS 2009-01-07 00:58:25 +00:00
rtadvd - rename the RETURN VALUES section to EXIT STATUS [1] 2009-01-07 01:01:26 +00:00
rtprio
rtsold - rename the RETURN VALUES section to EXIT STATUS [1] 2009-01-07 00:54:30 +00:00
rwhod
sa Ensure that the -s flag truncates the accounting data. 2008-02-21 07:12:56 +00:00
sade Oops, missed removing an 's' in previous rev. 2008-12-30 18:21:54 +00:00
sendmail This FFR is no longer needed in sendmail 8.14 2007-04-09 01:45:52 +00:00
setfib - Use static for usage() 2008-10-17 21:11:09 +00:00
setfmac An average consumer of fts(3) that avoids keeping pointers to old 2008-01-29 17:50:29 +00:00
setpmac
sicontrol Remove sicontrol(8)'s "ttystat". 2008-06-09 08:43:27 +00:00
sliplogin
slstat Correct xref to systat(1) which was mispelled as ststat(1) in 1.5. 2005-11-29 16:33:44 +00:00
smbmsg Force the use of the tbl(1) preprocessor. 2006-10-25 10:44:59 +00:00
snapinfo Imagine a situation where: 2007-03-16 12:36:54 +00:00
spkrtest
spray
sysinstall Add urtw(4) to the list of supported network interface. 2009-01-23 05:57:40 +00:00
syslogd Add "crit" to the list of keywords. 2008-12-23 17:39:24 +00:00
tcpdchk Reimplementation of world/kernel build options. For details, see: 2006-03-17 18:54:44 +00:00
tcpdmatch Reimplementation of world/kernel build options. For details, see: 2006-03-17 18:54:44 +00:00
tcpdrop Normalize usage output. 2007-10-31 13:49:20 +00:00
tcpdump Update for tcpdump 3.9.8 2007-10-16 02:32:44 +00:00
timed Remove spurious duplicated defination of sock. 2008-09-24 00:04:51 +00:00
traceroute Add AS lookup functionality. On each hop we query a whois server to 2008-02-20 23:29:53 +00:00
traceroute6 - rename the RETURN VALUES section to EXIT STATUS 2009-01-07 00:57:27 +00:00
trpt Obey MK_INET6_SUPPORT. 2006-07-27 14:52:12 +00:00
tzsetup - Replace rcsid with __FBSDID. 2008-06-03 22:34:52 +00:00
ugidfw In ugidfw(8), print the rule number and rule contents (as parsed and then 2008-12-24 22:40:13 +00:00
usbconfig MFp4: //depot/projects/usb@155807 2009-01-13 19:02:17 +00:00
usbdevs Add missing -o to usage output. 2008-12-29 14:59:22 +00:00
vidcontrol Tweak some wording and markup. 2006-12-22 23:23:59 +00:00
vipw s/insure/ensure/ in previous commit. My dictionary and m-w.com say they 2005-10-28 22:47:40 +00:00
watch Convert the snp(4) driver to use cdevpriv. 2008-08-15 13:07:07 +00:00
watchdogd Don't exit from watchdogd on receiving a signal if we cannot stop the watchdog. 2006-12-15 22:47:36 +00:00
wlandebug TDMA support for long distance point-to-point links using ath devices: 2009-01-08 17:12:47 +00:00
wlconfig
wpa 'Strict EAP conformance' makes more sense here than 'String EAP 2008-11-21 18:15:39 +00:00
yp_mkdb
ypbind Don't rely on private RPC data structures when there is a perfectly good 2008-09-15 14:01:40 +00:00
yppoll
yppush Remove unsafe use of asynchronous I/O (the SIGIO handler could cause 2006-08-16 12:58:41 +00:00
ypserv Add -P <port> option to allow binding to a specific port. 2008-02-03 17:39:37 +00:00
ypset Increase helpfulness in diagnostic message - ypbind running without -ypset or 2007-02-28 22:49:12 +00:00
zic Finish a few more .Dl "quoted" arguments missed in revision 184984 2008-11-15 06:41:57 +00:00
zzz
Makefile Introduce the I2C diagnostic utility. It let's discover and inspect slave 2009-01-26 14:00:50 +00:00
Makefile.inc