Commit Graph

214 Commits

Author SHA1 Message Date
Nicholas Marriott
d3d25365f1 server_kill_window can modify the RB tree so don't use RB_FOREACH, fixes
crash seen by Dan Harnett.
2010-12-23 21:56:38 +00:00
Tiago Cunha
a373235106 Sync OpenBSD patchset 806:
Store sessions in an RB tree by name rather than a list, this is tidier
and allows them to easily be shown sorted in various lists
(list-sessions/choose-sessions).

Keep a session index which is used in a couple of places internally but
make it an ever-increasing number rather than filling in gaps with new
sessions.
2010-12-22 15:36:44 +00:00
Tiago Cunha
bb728b89a7 Sync OpenBSD patchset 802:
Use pointer rather than index for the client's last session.
2010-12-22 15:31:00 +00:00
Nicholas Marriott
acf13ce978 Store sessions in an RB tree by name rather than a list, this is tidier
and allows them to easily be shown sorted in various lists
(list-sessions/choose-sessions).

Keep a session index which is used in a couple of places internally but
make it an ever-increasing number rather than filling in gaps with new
sessions.
2010-12-21 22:37:59 +00:00
Nicholas Marriott
9358cfaf4a Use pointer rather than index for the client's last session. 2010-12-20 00:17:22 +00:00
Nicholas Marriott
5fcd6711e4 Track the last session for a client and add a flag to switch-client and
a key binding (L) to move a client back to its last session.
2010-12-11 18:42:20 +00:00
Nicholas Marriott
51487ed22f Track the last session for a client and add a flag to switch-client and
a key binding (L) to move a client back to its last session.
2010-12-11 18:39:25 +00:00
Tiago Cunha
b2ae7c6261 Sync OpenBSD patchset 770:
Set cause when failing due to linking a window to itself, from Martin
Pieuchot.
2010-10-09 14:31:50 +00:00
Tiago Cunha
6c9269baa7 Sync OpenBSD patchset 769:
Skip NULL entries in the sessions list when choosing the next session,
from Simon Olofsson.
2010-10-09 14:31:14 +00:00
Tiago Cunha
b5349ab5d9 Sync OpenBSD patchset 766:
Two new options:

- server option "exit-unattached" makes the server exit when no clients
  are attached, even if sessions are present;

- session option "destroy-unattached" destroys a session once no clients
  are attached to it.

These are useful for preventing tmux remaining in the background where
it is undesirable and when using tmux as a login shell to keep a limit
on new sessions.
2010-10-09 14:29:32 +00:00
Nicholas Marriott
7aef2994e4 Set cause when failing due to linking a window to itself, from Martin
Pieuchot.
2010-10-09 12:58:00 +00:00
Nicholas Marriott
08bcd6978c Skip NULL entries in the sessions list when choosing the next session,
from Simon Olofsson.
2010-10-05 17:15:21 +00:00
Nicholas Marriott
9a7cde0c9b Two new options:
- server option "exit-unattached" makes the server exit when no clients
  are attached, even if sessions are present;

- session option "destroy-unattached" destroys a session once no clients
  are attached to it.

These are useful for preventing tmux remaining in the background where
it is undesirable and when using tmux as a login shell to keep a limit
on new sessions.
2010-09-26 20:43:30 +00:00
Tiago Cunha
e34c6e2305 Sync OpenBSD patchset 746:
Treat trying to link or move to the same window as an error to avoid
removing it accidentally.
2010-08-11 22:16:43 +00:00
Nicholas Marriott
cc474b4ede Treat trying to link or move to the same window as an error to avoid
removing it accidentally.
2010-08-11 07:36:23 +00:00
Tiago Cunha
d7bae0edce Sync OpenBSD patchset 741:
When changing so that the client passes its stdout and stderr as well as
stdin up to the server, I forgot one essential point - the tmux server
could now be both the producer and consumer. This happens when tmux is
run inside tmux, as well as when piping tmux commands together.

So, using stdio(3) was a bad idea - if sufficient data was written, this
could block in write(2). When that happened and the server was both
producer and consumer, it deadlocks.

Change to use libevent bufferevents for the client stdin, stdout and
stderr instead. This is trivial enough for output but requires a
callback mechanism to trigger when stdin is finished.

This relies on the underlying polling mechanism for libevent to work
with whatever devices to which the user could redirect stdin, stdout or
stderr, hence the change to use poll(2) over kqueue(2) for tmux.
2010-08-09 21:44:25 +00:00
Nicholas Marriott
c87187f913 When changing so that the client passes its stdout and stderr as well as
stdin up to the server, I forgot one essential point - the tmux server
could now be both the producer and consumer. This happens when tmux is
run inside tmux, as well as when piping tmux commands together.

So, using stdio(3) was a bad idea - if sufficient data was written, this
could block in write(2). When that happened and the server was both
producer and consumer, it deadlocks.

Change to use libevent bufferevents for the client stdin, stdout and
stderr instead. This is trivial enough for output but requires a
callback mechanism to trigger when stdin is finished.

This relies on the underlying polling mechanism for libevent to work
with whatever devices to which the user could redirect stdin, stdout or
stderr, hence the change to use poll(2) over kqueue(2) for tmux.
2010-07-24 20:11:59 +00:00
Tiago Cunha
fa34c76275 Sync OpenBSD patchset 729:
New option, detach-on-destroy, to set what happens to a client when the session
it is attached to is destroyed. If on (the default), it is detached; if off, it
is switched to the most recently active session.
2010-07-02 02:45:52 +00:00
Tiago Cunha
985cd3a4de Sync OpenBSD patchset 728:
Use server_destroy_session() for kill-session.
2010-07-02 02:43:50 +00:00
Nicholas Marriott
26524c99f6 New option, detach-on-destroy, to set what happens to a client when the session
it is attached to is destroyed. If on (the default), it is detached; if off, it
is switched to the most recently active session.
2010-06-27 00:22:22 +00:00
Nicholas Marriott
34464da8d3 Use server_destroy_session() for kill-session. 2010-06-26 23:55:50 +00:00
Tiago Cunha
47b335dee7 Sync OpenBSD patchset 724:
Having a list of winlinks->alerts for each session is stupid, just store
the alert flags directly in the winlink itself.
2010-06-22 23:26:18 +00:00
Nicholas Marriott
e63f0546a1 Having a list of winlinks->alerts for each session is stupid, just store
the alert flags directly in the winlink itself.
2010-06-21 01:27:46 +00:00
Tiago Cunha
b03418fc6b Sync OpenBSD patchset 682:
If remain-on-exit is set, both the error callback and a SIGCHLD could
destroy the same pane (because the first one doesn't remove it from the
list of panes), causing the pane bufferevent to be freed twice. So don't
free it if the fd has already been set to -1, from Romain Francoise.
2010-04-18 15:10:55 +00:00
Nicholas Marriott
a6d52405a8 If remain-on-exit is set, both the error callback and a SIGCHLD could
destroy the same pane (because the first one doesn't remove it from the
list of panes), causing the pane bufferevent to be freed twice. So don't
free it if the fd has already been set to -1, from Romain Francoise.
2010-04-17 23:25:16 +00:00
Nicholas Marriott
67300e9524 Stupid style nits. 2010-04-06 21:45:36 +00:00
Nicholas Marriott
4012917302 Nuke unused functions. 2010-03-27 15:12:56 +00:00
Nicholas Marriott
c550e66e85 Dead functions, lint. 2010-03-22 19:18:46 +00:00
Tiago Cunha
391b209008 Sync OpenBSD patchset 615:
When a window is destroyed, remove all links to it from each session rather
than just the first. Reported by Robin Lee Powell.
2010-01-25 17:13:43 +00:00
Nicholas Marriott
b9ade6e6bb When a window is destroyed, remove all links to it from each session rather
than just the first. Reported by Robin Lee Powell.
2010-01-23 21:07:31 +00:00
Tiago Cunha
106011aa53 Sync OpenBSD patchset 597:
Options to set the colour of the pane borders, with different colours for the
active pane.
2010-01-05 23:52:37 +00:00
Nicholas Marriott
7e4f8b45b6 Options to set the colour of the pane borders, with different colours for the
active pane.
2010-01-03 12:51:05 +00:00
Tiago Cunha
f81b3ddf94 Sync OpenBSD patchset 591:
Fix a couple of problems with grouped sessions reported by danh: redraw
properly and choose the correct last window after a window is killed.
2009-12-26 23:45:21 +00:00
Nicholas Marriott
4feee126b8 Fix a couple of problems with grouped sessions reported by danh: redraw
properly and choose the correct last window after a window is killed.
2009-12-22 10:20:08 +00:00
Tiago Cunha
cc094fdfe6 Sync OpenBSD patchset 581:
Massive spaces->tabs and trailing whitespace cleanup, hopefully for the last
time now I've configured emacs to make them displayed in really annoying
colours...
2009-12-04 22:14:47 +00:00
Nicholas Marriott
15a64b805e Massive spaces->tabs and trailing whitespace cleanup, hopefully for the last
time now I've configured emacs to make them displayed in really annoying
colours...
2009-12-03 22:50:09 +00:00
Tiago Cunha
c12e0b0708 Sync OpenBSD patchset 567:
Remove a couple of unused arguments where possible, and add /* ARGSUSED */ to
the rest to reduce lint output.
2009-11-28 14:50:37 +00:00
Nicholas Marriott
4ca857e0e9 Remove a couple of unused arguments where possible, and add /* ARGSUSED */ to
the rest to reduce lint output.
2009-11-26 21:37:13 +00:00
Tiago Cunha
72bc03ac4c Sync OpenBSD patchset 535:
Destroy panes immediately rather than checking them all every loop.
2009-11-14 17:48:39 +00:00
Nicholas Marriott
8e47966225 Destroy panes immediately rather than checking them all every loop. 2009-11-13 17:33:07 +00:00
Tiago Cunha
02438c01b7 Sync OpenBSD patchset 504:
Use timeout events for the identify and message timers.
2009-11-08 23:11:23 +00:00
Tiago Cunha
bee17719d8 Sync OpenBSD patchset 503:
Don't reenlist the client imsg event every loop, instead have a small function
to it and call it after the event triggers or after a imsg is added.
2009-11-08 23:09:36 +00:00
Nicholas Marriott
b1264a7416 Use timeout events for the identify and message timers. 2009-11-04 23:29:42 +00:00
Nicholas Marriott
b3c4956efe Don't reenlist the client imsg event every loop, instead have a small function
to it and call it after the event triggers or after a imsg is added.
2009-11-04 23:12:43 +00:00
Tiago Cunha
39afe3fc2a Sync OpenBSD patchset 388:
Set the current window pointer to NULL when killing a winlink that is to be
replaced with link-window -k. This prevents it being pushed onto the last
window stack and causing a use-after-free.

Only took me an hour to find this :-/...
2009-10-12 00:37:41 +00:00
Tiago Cunha
6a1ebb11df Sync OpenBSD patchset 371:
Add "grouped sessions" which have independent name, options, current window and
so on but where the linked windows are synchronized (ie creating, killing
windows and so on are mirrored between the sessions). A grouped session may be
created by passing -t to new-session.

Had this around for a while, tested by a couple of people.
2009-10-11 23:38:16 +00:00
Nicholas Marriott
fbb030d7f7 Set the current window pointer to NULL when killing a winlink that is to be
replaced with link-window -k. This prevents it being pushed onto the last
window stack and causing a use-after-free.

Only took me an hour to find this :-/...
2009-10-11 10:39:27 +00:00
Nicholas Marriott
9dd72b9583 Add "grouped sessions" which have independent name, options, current window and
so on but where the linked windows are synchronized (ie creating, killing
windows and so on are mirrored between the sessions). A grouped session may be
created by passing -t to new-session.

Had this around for a while, tested by a couple of people.
2009-10-10 10:02:48 +00:00
Tiago Cunha
813d78e46a Sync OpenBSD patchset 357:
Check for already locked/suspended clients in server_lock_client rather than
its callers.
2009-10-05 18:23:31 +00:00
Nicholas Marriott
c734789b18 Check for already locked/suspended clients in server_lock_client rather than
its callers.
2009-10-04 10:55:30 +00:00
Tiago Cunha
88c3b9c989 Sync OpenBSD patchset 353:
New lock-client and lock-session commands to lock an individual client or all
clients attached to a session respectively.
2009-09-25 17:51:39 +00:00
Nicholas Marriott
8fa1858a2c New lock-client and lock-session commands to lock an individual client or all
clients attached to a session respectively.
2009-09-24 14:17:09 +00:00
Tiago Cunha
1310ea2729 Sync OpenBSD patchset 347:
Remove the internal tmux locking and instead detach each client and run the
command specified by a new option "lock-command" (by default "lock -np") in
each client.

This means each terminal has to be unlocked individually but simplifies the
code and allows the system password to be used to unlock.

Note that the set-password command is gone, so it will need to be removed from
configuration files, and the -U command line flag has been removed.

This is the third protocol version change so again it is best to stop the tmux
server before upgrading.
2009-09-23 15:00:09 +00:00
Nicholas Marriott
b01dcd7971 Remove the internal tmux locking and instead detach each client and run the
command specified by a new option "lock-command" (by default "lock -np") in
each client.

This means each terminal has to be unlocked individually but simplifies the
code and allows the system password to be used to unlock.

Note that the set-password command is gone, so it will need to be removed from
configuration files, and the -U command line flag has been removed.

This is the third protocol version change so again it is best to stop the tmux
server before upgrading.
2009-09-23 06:18:47 +00:00
Tiago Cunha
7335ef5792 Sync OpenBSD patchset 333:
Move some common and untidy code for window link/unlink into generic functions
instead of duplicating it in move/link window..
2009-09-20 22:15:32 +00:00
Tiago Cunha
3266fb5441 Sync OpenBSD patchset 332:
Regularise some fatal messages.
2009-09-20 22:11:27 +00:00
Nicholas Marriott
9b5f5ed8e8 Move some common and untidy code for window link/unlink into generic functions
instead of duplicating it in move/link window..
2009-09-20 17:27:18 +00:00
Nicholas Marriott
273f1b385c Regularise some fatal messages. 2009-09-20 14:58:12 +00:00
Tiago Cunha
69e7f4af19 Sync OpenBSD patchset 324:
Tidy some common code for destroying sessions into a new function.
2009-09-13 20:37:37 +00:00
Nicholas Marriott
8cb8a0da8d Tidy some common code for destroying sessions into a new function. 2009-09-12 13:01:19 +00:00
Tiago Cunha
bb2d57dcbf Sync OpenBSD patchset 316:
Only redraw all clients once when the backoff timer expires rather than every
second all the time.

Reported by Simon Nicolussi.
2009-09-05 19:03:41 +00:00
Nicholas Marriott
ffab22bb35 Only redraw all clients once when the backoff timer expires rather than every
second all the time.

Reported by Simon Nicolussi.
2009-09-05 17:42:16 +00:00
Tiago Cunha
c274551db6 - Make it compile on operating systems other than BSD due to OpenBSD patchset
308.
- While there, remove some duplicate code from the compat header file.
2009-09-03 20:54:39 +00:00
Tiago Cunha
f796336a12 Sync OpenBSD patchset 308:
When incorrect passwords are entered, behave similarly to login(1) and backoff
for a bit. Based on a diff from martynas@.
2009-09-03 20:44:38 +00:00
Nicholas Marriott
c5ac2579ba When incorrect passwords are entered, behave similarly to login(1) and backoff
for a bit. Based on a diff from martynas@.
2009-09-02 16:38:35 +00:00
Tiago Cunha
ce5c441f0f Sync OpenBSD patchset 304:
Use "Password:" with no space for password prompts and don't display a *s for
the password, like pretty much everything else. From martynas@ with minor
tweaks by me.
2009-09-02 00:55:49 +00:00
Nicholas Marriott
f8aa5821be Use "Password:" with no space for password prompts and don't display a *s for
the password, like pretty much everything else. From martynas@ with minor
tweaks by me.
2009-09-01 09:11:05 +00:00
Tiago Cunha
ed3535db8a Sync OpenBSD patchset 302:
Add a new display-panes command, with two options (display-panes-colour and
display-panes-time), which displays a visual indication of the number of each
pane.
2009-08-31 22:30:15 +00:00
Nicholas Marriott
04319964b9 Add a new display-panes command, with two options (display-panes-colour and
display-panes-time), which displays a visual indication of the number of each
pane.
2009-08-31 20:46:19 +00:00
Tiago Cunha
a9b6bfdddd Sync OpenBSD patchset 243:
Switch tmux to use imsg. This is the last major change to make the
client-server protocol more resilient and make the protocol versioning work
properly. In future, the only things requiring a protocol version bump will be
changes in the message structs, and (when both client and server have this
change) mixing different versions should nicely report an error message.

As a side effect this also makes the code tidier, fixes a problem with the way
errors reported during server startup were handled, and supports fd passing
(which will be used in future).

Looked over by eric@, thanks.

Please note that mixing a client with this change with an older server or vice
versa may cause tmux to crash or hang - tmux should be completely exited before
upgrading.
2009-08-14 21:04:04 +00:00
Nicholas Marriott
f0635717b3 Switch tmux to use imsg. This is the last major change to make the
client-server protocol more resilient and make the protocol versioning work
properly. In future, the only things requiring a protocol version bump will be
changes in the message structs, and (when both client and server have this
change) mixing different versions should nicely report an error message.

As a side effect this also makes the code tidier, fixes a problem with the way
errors reported during server startup were handled, and supports fd passing
(which will be used in future).

Looked over by eric@, thanks.

Please note that mixing a client with this change with an older server or vice
versa may cause tmux to crash or hang - tmux should be completely exited before
upgrading.
2009-08-11 17:18:35 +00:00
Tiago Cunha
29b1b2fb5e Sync OpenBSD patchset 231:
Infrastructure and commands to manage the environment for processes started
within tmux.

There is a global environment, copied from the external environment when the
server is started and each session has an (initially empty) session
environment which overrides it.

New commands set-environment and show-environment manipulate or display the
environments.

A new session option, update-environment, is a space-separated list of
variables which are updated from the external environment into the session
environment every time a new session is created - the default is DISPLAY.
2009-08-09 17:48:55 +00:00
Tiago Cunha
5b56ea1816 Sync OpenBSD patchset 225:
If there is an error in the configuration file, don't just exit(1) as this can
cause the client to hang. Instead, send the error message, then mark the client
as bad and start a normal shutdown so the server exits once the error is
written.

This also allows some code duplicating daemon(3) to be trimmed and logging to
begin earlier.

Prompted by Theo noticing the behaviour on error wasn't documented.
2009-08-09 17:19:18 +00:00
Nicholas Marriott
6491274f60 Infrastructure and commands to manage the environment for processes started
within tmux.

There is a global environment, copied from the external environment when the
server is started and each sesssion has an (initially empty) session
environment which overrides it.

New commands set-environment and show-environment manipulate or display the
environments.

A new session option, update-environment, is a space-separated list of
variables which are updated from the external environment into the session
environment every time a new session is created - the default is DISPLAY.
2009-08-08 21:52:43 +00:00
Nicholas Marriott
e89e70e715 If there is an error in the configuration file, don't just exit(1) as this can
cause the client to hang. Instead, send the error message, then mark the client
as bad and start a normal shutdown so the server exits once the error is
written.

This also allows some code duplicating daemon(3) to be trimmed and logging to
begin earlier.

Prompted by Theo noticing the behaviour on error wasn't documented.
2009-08-07 15:39:10 +00:00
Tiago Cunha
6fbfcfc0d7 Sync OpenBSD patchset 196:
Rename struct hdrtype to msgtype which is a better name and can be used even
when struct hdr disappears.
2009-07-30 20:21:55 +00:00
Nicholas Marriott
c1d6d7ac6b Rename struct hdrtype to msgtype which is a better name and can be used even
when struct hdr disappears.
2009-07-29 14:17:26 +00:00
Tiago Cunha
d637cb33da Sync OpenBSD patchset 181:
Make all messages sent between the client and server fixed size.

This is the first of two changes to make the protocol more resilient and less
sensitive to other changes in the code, particularly with commands. The client
now packs argv into a buffer and sends it to the server for parsing, rather
than doing it itself and sending the parsed command data.

As a side-effect this also removes a lot of now-unused command marshalling
code.

Mixing a server without this change and a client with or vice versa will cause
tmux to hang or crash, please ensure that tmux is entirely killed before
upgrading.
2009-07-28 22:12:16 +00:00
Nicholas Marriott
34a82e7629 Make all messages sent between the client and server fixed size.
This is the first of two changes to make the protocol more resilient and less
sensitive to other changes in the code, particularly with commands. The client
now packs argv into a buffer and sends it to the server for parsing, rather
than doing it itself and sending the parsed command data.

As a side-effect this also removes a lot of now-unused command marshalling
code.

Mixing a server without this change and a client with or vice versa will cause
tmux to hang or crash, please ensure that tmux is entirely killed before
upgrading.
2009-07-26 12:58:44 +00:00
Tiago Cunha
54c6848d75 Sync OpenBSD patchset 148:
Display the number of failed password attempts (if any) when the server is
locked. From Tom Doherty.
2009-07-20 16:07:23 +00:00
Nicholas Marriott
54afcfbfb4 Display the number of failed password attempts (if any) when the server is
locked. From Tom Doherty.
2009-07-20 14:37:51 +00:00
Nicholas Marriott
19cb1fb592 Make it so using kill-pane to destroy the last pane in a window destroys the
window instead of being an error.
2009-07-18 11:07:14 +00:00
Nicholas Marriott
0ca6f667e3 Make it so using kill-pane to destroy the last pane in a window destroys the
window instead of being an error.
2009-07-17 20:37:03 +00:00
Nicholas Marriott
89543e999d A similar for fix for window_choose: don't rely on the callback always being
called to free data, have a separate free callback and call it from the mode
cleanup code.
2009-07-17 12:12:54 +00:00
Nicholas Marriott
fc17ce0150 Oops, it is always a good idea to get arguments the right way round. 2009-07-17 09:28:27 +00:00
Nicholas Marriott
441c118b63 Memory could be leaked if a second prompt or message appeared while another was
still present, so add a separate prompt free callback and make the _clear
function responsible for calling it if necessary (rather than the individual
2009-07-17 09:26:21 +00:00
Nicholas Marriott
d3b5c242cc Oops, it is always a good idea to get arguments the right way round. 2009-07-17 07:09:46 +00:00
Nicholas Marriott
65deba3a35 Memory could be leaked if a second prompt or message appeared while another was
still present, so add a separate prompt free callback and make the _clear
function responsible for calling it if necessary (rather than the individual
prompt callbacks). Also make both messages and prompts clear any existing when
a new is set.

In addition, the screen could be modified while the prompt is there, restore
the redraw-entire-screen behaviour on prompt clear; add a comment as a
reminder.
2009-07-17 06:13:27 +00:00
Nicholas Marriott
f44ae0535e Need time.h not sys/time.h for time(2). 2009-07-14 07:01:03 +00:00
Nicholas Marriott
4a9b01eb0d Need time.h not sys/time.h for time(2). 2009-07-14 06:59:06 +00:00
Nicholas Marriott
d7b4aa0ff3 Add a default-terminal option to set the starting value of $TERM in new
windows.
2009-07-12 17:07:58 +00:00
Nicholas Marriott
daa1faa905 Add a default-terminal option to set the starting value of $TERM in new
windows.

This is "screen" by default and must be either that or something closely
related. This does makes it easier to customise it if necessary.
2009-07-10 05:50:54 +00:00
Nicholas Marriott
99395856ff Bring spacing into line. 2009-07-08 18:07:09 +00:00
Nicholas Marriott
9cf68ac868 Whoops, that shouldn't have been there. 2009-07-08 18:05:33 +00:00
Nicholas Marriott
2ddcb51df3 Fix $Id$. 2009-07-08 18:03:03 +00:00
Nicholas Marriott
9e5a581307 When unlocking the server, don't try to clear the prompt on clients without a
prompt (such as the one issuing the unlock request).

This caused the server to die if the wrong password was entered when unlocking
from the command line with -U (nasty).
2009-07-08 17:54:36 +00:00
Nicholas Marriott
55f8219d3c When unlocking the server, don't try to clear the prompt on clients without a
prompt (such as the one issuing the unlock request).

This caused the server to die if the wrong password was entered when unlocking
from the command line with -U (nasty).
2009-07-01 19:15:12 +00:00
Nicholas Marriott
4c5c125173 When unlocking the server, don't try to clear the prompt on clients without a
prompt (such as the one issuing the unlock request).

This caused the server to die if the wrong password was entered when unlocking
from the command line with -U (nasty).
2009-06-30 13:40:30 +00:00
Nicholas Marriott
802e129fd7 Start of portability update: bitstring.h. 2009-06-25 17:02:59 +00:00
Nicholas Marriott
a5830b9603 Restore $Id$ and add script to do so. 2009-06-25 16:21:32 +00:00