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->Support Features</TITLE
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-NAME="NET-COMMON-SUPPORT">Chapter 37. Support Features</H1
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-><DT
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->Table of Contents</B
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-><DT
-><A
-HREF="net-common-support.html#NET-COMMON-TFTP"
->TFTP</A
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->DHCP</A
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-><DIV
-CLASS="SECT1"
-><H1
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-><A
-NAME="NET-COMMON-TFTP">TFTP</H1
-><P
->The TFTP client and server are described in
-<TT
-CLASS="FILENAME"
->tftp_support.h</TT
->;
-the client API is simple and can be easily understood by reading
-<TT
-CLASS="FILENAME"
->tftp_client_test.c</TT
->.</P
-><P
->The server is more complex. It requires a filesystem implementation
-to be supplied by the user, and attached to the tftp server by means
-of a vector of function pointers:</P
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-><TD
-><PRE
-CLASS="PROGRAMLISTING"
->struct tftpd_fileops {
- int (*open)(const char *, int);
- int (*close)(int);
- int (*write)(int, const void *, int);
- int (*read)(int, void *, int);
-};</PRE
-></TD
-></TR
-></TABLE
-><P
->These functions have the obvious semantics. The structure
-describing the filesystem is an argument to the <TT
-CLASS="FUNCTION"
->tftpd_start(int,
-struct tftpd_fileops *);</TT
-> call.
- The first argument is the port to use for the server.</P
-><P
->As discussed in the description of the tftp_server_test
-above, an example filesystem is provided in
-<TT
-CLASS="FILENAME"
->net/common/<TT
-CLASS="REPLACEABLE"
-><I
->VERSION</I
-></TT
->/src/tftp_dummy_file.c</TT
->
-for
-use by the tftp server test. The dummy filesystem is not a supported
-part of the network stack, it exists purely for demonstration purposes.</P
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