diff options
Diffstat (limited to 'doc/s6-sudod.html')
| -rw-r--r-- | doc/s6-sudod.html | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/doc/s6-sudod.html b/doc/s6-sudod.html index 2c613da..54e9574 100644 --- a/doc/s6-sudod.html +++ b/doc/s6-sudod.html @@ -91,8 +91,8 @@ will set up a privileged program: <pre> #!/command/execlineb -P fdmove -c 2 1 +fdmove 1 3 s6-envuidgid serveruser -s6-notifywhenup -f s6-ipcserver -U -1 -- serversocket s6-ipcserver-access -v2 -l0 -i rules -- exec -c @@ -106,12 +106,15 @@ sargv executes the script. </li> <li> <a href="http://skarnet.org/software/execline/fdmove.html">fdmove</a> makes sure the script's error messages are sent to the service's logger. </li> + <li> <a href="http://skarnet.org/software/execline/fdmove.html">fdmove</a> +redirects the script's stdout to file descriptor 3. This is useful if +the service directory contains a <tt>notification-fd</tt> file containing +<tt>3</tt>, so the daemon can perform +<a href="notifywhenup.html">readiness notification</a> by writing a +newline to its stdout. (The +<tt>-1</tt> option to s6-ipcserver tells it to do this.) </li> <li> <a href="s6-envuidgid.html">s6-envuidgid</a> sets the UID, GID and GIDLIST environment variables for s6-ipcserver to interpret. </li> - <li> <a href="s6-notifywhenup.html">s6-notifywhenup</a> primes the -service for readiness notification (and the -<tt>-1</tt> option to s6-ipcserver tells the daemon to actually -notify when it's ready). </li> <li> <a href="s6-ipcserver.html">s6-ipcserver</a> binds to <em>serversocket</em>, drops its privileges to those of <em>serveruser</em>, and announces its readiness. Then, for every client connecting to <em>serversocket</em>: |