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Top Forums Programming socket programming (UDP with multiple clients) Post 302250294 by otheus on Thursday 23rd of October 2008 05:31:05 AM
Old 10-23-2008
This does not sound like a UDP application. The client must keep track of which portions of the file have been sent, and the server must take care to see that each portion of the file has been received. Then both need some kind of handshake agreement so that the client knows to resend data to the server, or to pause so that the server can finish storing the data (what if the server blocks)?

In short, you're reinventing the wheels of FTP and/or NFS. What makes your application different?
 

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in.echod(1M)						  System Administration Commands					      in.echod(1M)

NAME
in.echod - UDP or TCP echo protocol service daemon SYNOPSIS
in.echod FMRI svc:/internet/echo:default DESCRIPTION
FMRI stands for Fault Management Resource Identifier. It is used to identify resources managed by the Fault Manager. See fmd(1M) and smf(5). The in.echod service provides the server-side of the echo protocol. This protocol is used for debugging and bandwidth measurement and is available on both TCP and UDP transports, through port 7. The in.echod service is an inetd(1M) smf(5) delegated service. The in.echod detects which transport is requested by examining the socket it is passed by the inetd daemon. TCP-based service Once a connection is established, the in.echod echoes any data received from the client back to the client. The server echoes data until the client program terminates the connection. UDP-based service The in.echod listens for UDP datagrams. When a datagram is received, the server creates a UDP datagram containing the data it received and sends it to the client. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNW | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
inetd(1M), attributes(5), smf(5) RFC 862 SunOS 5.10 23 Aug 2004 in.echod(1M)
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