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130 Commits

Author SHA1 Message Date
nicm
c284ebe0ad Rewrite the code for reading and writing files. Now, if the client is 
not attached, the server process asks it to open the file, similar to
how works for stdin, stdout, stderr. This makes special files like
/dev/fd/X work (used by some shells). stdin, stdout and stderr and
control mode are now just special cases of the same mechanism. This will
also make it easier to use for other commands that read files such as
source-file.
 2019-12-12 11:39:56 +00:00
nicm
8f40f791d9 Change "lost server" message to "server exited unexpectedly", from Neal 
McBurnett in GitHub issue 1857.
 2019-07-26 20:08:40 +00:00
deraadt
4ff7bc3eb3 When system calls indicate an error they return -1, not some arbitrary 
value < 0.  errno is only updated in this case.  Change all (most?)
callers of syscalls to follow this better, and let's see if this strictness
helps us in the future.
 2019-06-28 13:35:05 +00:00
nicm
f8d3d247d8 Merge cmd_list_parse into cmd-parse.y so it can use the new alias 
processing code.
 2019-05-25 07:18:20 +00:00
nicm
3a7b9d5735 Do not use PWD unless it actually matches the real working directory. 2018-11-22 10:36:40 +00:00
guenther
896c1da7da Use <fcntl.h> instead of <sys/file.h> for open() and friends. 
Delete a bunch of unnecessary #includes and sort to match style(9)
while doing the above cleanup.

ok deraadt@ krw@
 2018-04-26 12:42:51 +00:00
nicm
d17c90583a Prefer PWD for current directory if present in client, from Wei Zhao in 
GitHub issue 1183.
 2018-01-01 11:19:08 +00:00
nicm
b20a00f93e Report better error from server when socket create fails, GitHub issue 
1201.
 2017-12-19 15:00:39 +00:00
nicm
62144b9f57 Do not try to put more in command message than will fit when sending 
(the server will treat as a fatal error). GitHub issue 1200.
 2017-12-18 22:13:36 +00:00
nicm
932f6cfbfc Because ignore SIGCHLD early, letting signal_del restore it doesn't work 
correctly, so set it explicitly back to default (and the others for good
measure).
 2017-07-14 18:49:07 +00:00
nicm
0453ad0146 Move signal code into proc.c. 2017-07-12 09:24:17 +00:00
nicm
ed3cfaafb2 Make shell_command a global like other stuff rather than making it an 
exception and using callback argument.
 2017-07-12 09:21:25 +00:00
nicm
85338bb75f Add support for custom command aliases, this is an array option which 
contains items of the form "alias=command". This is consulted when an
unknown command is parsed.
 2017-01-24 19:53:37 +00:00
nicm
98e7fbb2ac Open /dev/ptm before pledge() and save it to be used for PTMGET later 
(this means inlining forkpty()).

ok deraadt
 2017-01-23 10:09:43 +00:00
nicm
46572ba904 Print error rather than fatal() if tcgetattr() fails, which is much more 
useful to user.
 2017-01-20 14:02:33 +00:00
nicm
ef15b4195f Revert WIP parts of previous I didn't mean to commit yet. 2017-01-16 14:52:25 +00:00
nicm
68db958477 getopt() has a struct option so just return to using options_entry. 2017-01-16 14:49:14 +00:00
nicm
95950bf668 Add -E to detach-client to exec a command to replace the client instead 
of exiting it, useful if tmux wasn't exec'd itself. From Jenna Magius.
 2017-01-13 10:12:12 +00:00
nicm
1b31d148c9 Remove some dead code in cmd-move-window.c and make a load of local 
functions static.
 2016-10-03 22:52:11 +00:00
nicm
995af0e2b7 I no longer use my SourceForge address so replace it. 2016-01-19 15:59:12 +00:00
nicm
ac8678aefe Don't print error if none to print. 2015-11-25 07:58:55 +00:00
nicm
3ff46b2e43 Shell command from -c doesn't have to be global, pass it as an argument. 2015-11-24 23:22:51 +00:00
nicm
dca93c56e0 Do lock failures slightly better, return a special value so we don't 
unlink the wrong thing.
 2015-11-24 23:01:51 +00:00
nicm
73e30cbda8 Actually show something (even if it not that helpful) if the server 
fails to start (for example if it can't create the socket), rather than
hanging or showing nothing.
 2015-11-24 22:45:44 +00:00
nicm
c913fb99b6 Tidy the code that works out the socket path, and just use the full path 
in the global socket_path rather than copying it.
 2015-11-24 22:27:22 +00:00
nicm
bef217b241 Switch a fprintf to a fatal, and wrap some long lines. 2015-11-24 22:04:36 +00:00
nicm
577c0e3e5a Use __unused rather than rolling our own. 2015-11-18 14:27:44 +00:00
nicm
a582b62287 Accidentally turned off pledge, turn it back on. 2015-11-15 14:32:48 +00:00
nicm
c56b81a2ce Push stdout and stderr to clients more aggressively, and add an event to 
continue if the send fails.
 2015-11-14 09:41:06 +00:00
nicm
b0a99e85b6 Don't shift version out of peerid, it is needed later. 2015-10-31 13:43:38 +00:00
nicm
01defc9f49 Because pledge(2) does not allow us to pass directory file descriptors 
around, we can't use file descriptors for the working directory because
we will be unable to pass it to a privileged process to tell it where to
read or write files or spawn children. So move tmux back to using
strings for the current working directory. We try to check it exists
with access() when it is set but ultimately fall back to ~ if it fails
at time of use (or / if that fails too).
 2015-10-31 08:13:58 +00:00
nicm
bf9c933cae Like options, move the environ struct into environ.c. 2015-10-28 09:51:55 +00:00
nicm
44657bf932 Move struct options into options.c. 2015-10-27 15:58:42 +00:00
nicm
07b0ea03c3 Break the common process set up, event loop and imsg dispatch code 
between server and client out into a separate internal API. This will
make it easier to add another process.
 2015-10-27 13:23:24 +00:00
nicm
174a2ad731 Pass current directory as a string rather than a file descriptor because 
pledge doesn't let us pass directory file descriptors.
 2015-10-18 20:42:42 +00:00
nicm
9c601ebde8 Add pledge "stdio unix sendfd proc exec tty" to tmux client process, 
"sendfd" is dropped after first message from the server.
 2015-10-17 18:30:43 +00:00
guenther
241fd72f75 Userspace doesn't need to use SUN_LEN(): connect() and bind() must accept 
sizeof(struct sockaddr_un), so do the simple, portable thing

ok beck@ deraadt@
 2015-10-11 00:26:23 +00:00
nicm
2a62917444 Don't leak fd and path on failure. 2015-09-24 12:06:20 +00:00
nicm
67ee995cc1 No need to keep global options around for client which doesn't use them. 2015-09-09 12:09:21 +00:00
nicm
c6e9160c67 Login shell can be a client flag, and move the exec code into client.c. 2015-08-30 22:40:25 +00:00
nicm
dd92b6e83d Event base does not need to be global. 2015-08-30 22:19:07 +00:00
nicm
4e637b1b61 Ignore environment variables that are too long to send to the server. 2015-07-13 18:10:26 +00:00
nicm
29c29e7717 Add a format for client PID (client_pid) and server PID (pid). Diff for 
client_pid from Thomas Adam.
 2015-06-14 10:07:44 +00:00
nicm
6b2129696f Move the nested check from client to server and compare the client tty 
name to all the pane pty names instead of comparing socket paths. This
means that "new -d" will work without unsetting $TMUX.
 2015-06-04 23:27:51 +00:00
nicm
a5a873dccc Set up signal handler earlier so that we don't get zombies, reported by 
sobrado@.
 2015-04-24 20:58:44 +00:00
nicm
7a72eff4a4 Simplify error messages when socket connect fails, suggested by "Karthik K". 2015-04-21 22:21:41 +00:00
nicm
02df86079b Fix some format specifier nits, from Ben Boeckel. 2015-03-31 17:45:10 +00:00
nicm
900f6fc17e Tidy up some includes. 2014-10-20 23:27:14 +00:00
nicm
045d0c3b9f Call waitpid on SIGCHLD even if client not attached, it is possible (on 
very slow platforms) for the first daemon() child to still be running
when client_attached is set so we end up with a zombie. From J Raynor.
 2014-10-01 23:23:19 +00:00
nicm
4e956d545a Various minor style and spacing nits. 2014-09-01 21:50:18 +00:00