NetBSD/sbin/mount_portal/examples/tcp.1

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Use the following configuration file, tcp.1.conf:
tcp/ tcp tcp/
Now mount it, and cat the contents of /p/tcp/localhost/daytime:
% mkdir portal
% mount_portal /usr/share/examples/mount_portal/tcp.1.conf `pwd`/portal
% cat portal/tcp/localhost/daytime
Thu Aug 5 23:31:21 1999
Philosophy: With a pathname of <path to mountpount>/tcp/a/b[/priv],
the portal daemon opens a connection to host a, port b. If /priv
is specified, the socket will be created via rresvport(), rather
than socket().
For the above example, we open a connection to the daytime port
(port 13, according to /etc/services), and read data.
Advanced usage: finger
Using the already-mounted portal file system, open a connection
to the finger daemon, and do a finger. Use the simple C program
in fing.c in this directory.
% make fing
2001-11-16 13:25:42 +03:00
cc -O2 -o fing fing.c
% fing
Login Name Tty Idle Login Time Office Office Phone
2001-11-16 13:25:42 +03:00
bgrayson Brian C. Grayson p0 - Thu 22:31 ENS406
bgrayson Brian C. Grayson p1 10 Thu 22:32 ENS406
bgrayson Brian C. Grayson p2 - Thu 23:20 ENS406
% fing root
Login: root Name: Root @ marvin
Directory: /root Shell: /bin/tcsh
Last login Wed Aug 4 18:11 (CDT) on ttyp1 from c3p0.ece.utexas.
...
Philosophy: fing.c opens portal/tcp/localhost/finger as a
read-write file. First, we write the username for the finger (or
a blank line to see all users), then we read the results sent
over the socket.