1NaCl(1) General Commands Manual NaCl(1)
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6 CurveCP — Message-handling programs
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9 curvecpmessage [-q (optional)] [-Q (optional)] [-v (optional)] [-c
10 (optional)] [-C (optional)] [-s (optional)] [prog]
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13 This manual page documents briefly the CurveCP commands.
14 A traditional UNIX-style server such as ftpd handles just one network
16 connection, reading input from stdin and writing output to stdout. A
17 "superserver" such as inetd or tcpserver listens for network connec‐
18 tions and starts a separate server process for each connection.
19 The CurveCP command-line tools have an extra level of modularity. The
21 curvecpserver superserver listens for network connections. For each
22 connection, curvecpserver starts the curvecpmessage message handler;
23 curvecpmessage then starts a server such as ftpd. Then ftpd sends a
24 stream of data to curvecpmessage, which in turn sends messages to
25 curvecpserver, which encrypts and authenticates the messages and sends
26 them inside network packets. At the same time curvecpclient receives
27 network packets, verifies and decrypts messages inside the packets, and
28 passes the messages to curvecpmessage; curvecpmessage sends a stream of
29 data to ftpd. The same curvecpmessage tool is also used by curvecp‐
30 client.
31 curvecpserver and curvecpclient can use programs other than curvecpmes‐
33 sage. Those programs can directly generate messages in the CurveCP mes‐
34 sage format without talking to separate tools such as ftpd; or they can
35 support a completely different protocol that reuses CurveCP's crypto‐
36 graphic layer but transmits different kinds of messages.
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39 How to use curvecpmessage:
40 -q optional
42 no error messages
43 -Q optional
45 print error messages (default)
46 -v optional
48 print extra information
49 -c optional
51 program is a client; server starts first
52 -C optional
54 program is a client that starts first
55 -s optional
57 program is a server (default)
58 prog run this server
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62 curvecpserver (1), curvecpclient (1), inetd (8), tcpserver (1).
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65 This manual page was written by Sergiusz Pawlowicz debian@pawlow‐
66 icz.name for the Debian system (and may be used by others). The source
67 of this page is a webpage http://curvecp.org/messageapi.html . Permis‐
68 sion is granted to copy, distribute and/or modify this document under
69 public domain.
70 This manual page was rewritten for the Debian distribution because the
73 original program does not have a manual page.
74 NaCl(1)