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introduce sx
2017-12-01 20:14:54 +00:00
sx <https://github.com/Earnestly/sx>
INTRODUCTION
doc: clarify purpose and bump the manual date
2017-12-07 12:03:43 +00:00
sx is a simple alternative to both xinit(1) and startx(1) for starting
an Xorg server.
introduce sx
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It started life as a proof of concept while attempting to learn how both
xinit(1) and startx(1) worked.
It is not a direct replacement however as it provides a different, more
limited, interface.
Some of these differences are as follows:
* The Xorg server's command-line is hard coded and not exposed to the
user.
doc: mention that we don't use -listen
2017-12-09 23:34:20 +00:00
* The server doesn't listen on anything except unix domain sockets.
introduce sx
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* The first DISPLAY is 1 instead of 0 contrary to what X(7) suggests.
* xauth entries are overwritten if the displayname is identical.
* Corresponding xauth entries are unconditionally removed when the Xorg
server is terminated.
* The Xorg server uses the -noreset flag.
README: mention the Xorg.wrap bypass Xorg.wrap default system of autodetection of root rights requirement is wrong in every case I've seen it used. The result is the Xorg server runs as the root user when it is not necessary. The main autodetection failure case is when the proprietary nvidia drivers are used, incorrectly assuming Xorg needs to be run as root.
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* /usr/lib/xorg-server/Xorg is used directly, bypassing Xorg.wrap.
introduce sx
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* While XAUTHORITY is still honoured, $XDG_CONFIG_HOME/sx/xauthfile is
used instead of $HOME/.Xauthority
* Very little proxy error checking is used preferring instead to let each
README: mention the Xorg.wrap bypass Xorg.wrap default system of autodetection of root rights requirement is wrong in every case I've seen it used. The result is the Xorg server runs as the root user when it is not necessary. The main autodetection failure case is when the proprietary nvidia drivers are used, incorrectly assuming Xorg needs to be run as root.
2017-12-01 21:15:06 +00:00
tool speak for itself.
introduce sx
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* None of the typical /etc/X11/xinit infrastructure is directly used.
* Neither XINITRC is honoured nor .xinitrc used.
* The XDG_CONFIG_HOME/sx/sxrc file is used instead of .xinitrc and is
required to be executable.
For a rational on why this exists, the author invites the reader to look
over the source code for both xinit(1) and startx(1).
REQUIRES
sx: drop dependencies on coreutils and util-linux Upon review of GNU tail I discovered that the implemention of --pid was the same method as polling kill -0 on a sleep interval, which defaults to 1 second unless -s is used. This is perhaps expected due to the lack of a pwait(2) system call, I decided to implement the same mechanic myself and drop both the requirement on GNU tail and GNU timeout at the same time. This commit also replaces mcookie from util-linux with openssl rand which is used to generate a random MD5 checksum for use in the MIT-MAGIC-COOKIE-1 value.
2017-12-07 11:58:40 +00:00
* Xorg
* xauth
sx: drop dependency on openssl Turns out openssl rand would obnoxiously create a HOME/.rnd dotfile unless told otherwise with the RANDFILE environment. Unfortunately this neither options are compelling and neither can openssl rand be told to not write this file. Instead I'm going to use /dev/urandom which appears to be available on practically every UNIX. This commit also tidies up the timeout kill logic to better express what I am doing.
2017-12-07 13:06:46 +00:00
* /dev/urandom
introduce sx
2017-12-01 20:14:54 +00:00
sx: drop dependencies on coreutils and util-linux Upon review of GNU tail I discovered that the implemention of --pid was the same method as polling kill -0 on a sleep interval, which defaults to 1 second unless -s is used. This is perhaps expected due to the lack of a pwait(2) system call, I decided to implement the same mechanic myself and drop both the requirement on GNU tail and GNU timeout at the same time. This commit also replaces mcookie from util-linux with openssl rand which is used to generate a random MD5 checksum for use in the MIT-MAGIC-COOKIE-1 value.
2017-12-07 11:58:40 +00:00
INSTALL
introduce sx
2017-12-01 20:14:54 +00:00
sx: drop dependencies on coreutils and util-linux Upon review of GNU tail I discovered that the implemention of --pid was the same method as polling kill -0 on a sleep interval, which defaults to 1 second unless -s is used. This is perhaps expected due to the lack of a pwait(2) system call, I decided to implement the same mechanic myself and drop both the requirement on GNU tail and GNU timeout at the same time. This commit also replaces mcookie from util-linux with openssl rand which is used to generate a random MD5 checksum for use in the MIT-MAGIC-COOKIE-1 value.
2017-12-07 11:58:40 +00:00
make PREFIX=/usr DESTDIR=staged install