1999-08-16 10:42:48 +04:00
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Use the following configuration file, tcp.1.conf:
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tcp/ tcp tcp/
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Now mount it, and cat the contents of /p/tcp/localhost/daytime:
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% mkdir portal
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% mount_portal /usr/share/examples/mount_portal/tcp.1.conf `pwd`/portal
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% cat portal/tcp/localhost/daytime
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Thu Aug 5 23:31:21 1999
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Philosophy: With a pathname of <path to mountpount>/tcp/a/b[/priv],
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the portal daemon opens a connection to host a, port b. If /priv
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is specified, the socket will be created via rresvport(), rather
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than socket().
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For the above example, we open a connection to the daytime port
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(port 13, according to /etc/services), and read data.
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Advanced usage: finger
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Using the already-mounted portal file system, open a connection
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to the finger daemon, and do a finger. Use the simple C program
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in fing.c in this directory.
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% make fing
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2001-11-16 13:25:42 +03:00
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cc -O2 -o fing fing.c
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1999-08-16 10:42:48 +04:00
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% fing
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Login Name Tty Idle Login Time Office Office Phone
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2001-11-16 13:25:42 +03:00
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bgrayson Brian C. Grayson p0 - Thu 22:31 ENS406
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bgrayson Brian C. Grayson p1 10 Thu 22:32 ENS406
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bgrayson Brian C. Grayson p2 - Thu 23:20 ENS406
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1999-08-16 10:42:48 +04:00
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% fing root
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Login: root Name: Root @ marvin
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Directory: /root Shell: /bin/tcsh
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Last login Wed Aug 4 18:11 (CDT) on ttyp1 from c3p0.ece.utexas.
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...
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Philosophy: fing.c opens portal/tcp/localhost/finger as a
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read-write file. First, we write the username for the finger (or
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a blank line to see all users), then we read the results sent
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over the socket.
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