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/* Test Emcast - Test/Example Emcast Interface
* Copyright (c) 2001, The Regents of the University of Michigan
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* Neither the name of the <ORGANIZATION> nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <emcast-protocol.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <limits.h>
#include <sys/types.h>
#include <netinet/in.h>
static int eminit (unsigned short version, unsigned short* our_version);
static int emjoin (char* url);
static int emleave (void);
static int emsend (char* buf, unsigned short len);
static int emgetopt (char* optname, void* optval, unsigned short* optlen);
static int emsetopt (char* optname, void* optval, unsigned short optlen);
Emfuncs emfuncs = { eminit,
emjoin,
emleave,
emsend,
emgetopt,
emsetopt, 0, 0};
static int loopback = 0;
static int fd_fifo;
int
main (int argc, char* argv[])
{
fprintf (stderr, "echo-emcast start\n");
emcast_loop (&emfuncs, STDIN_FILENO, STDOUT_FILENO, &fd_fifo);
exit (EXIT_SUCCESS);
return 0;
}
/* **************************************** */
static int
eminit (unsigned short version, unsigned short* our_version)
{
fprintf (stderr, "INIT %d\n", version);
*our_version = 1;
return 0;
}
static int
emjoin (char* url)
{
fprintf (stderr, "JOIN %s\n", url);
return 0;
}
static int
emleave (void)
{
fprintf (stderr, "LEAVE\n");
return 0;
}
static int
emsend (char* buf, unsigned short len)
{
fprintf (stderr, "SEND %hd ", len);
write (STDERR_FILENO, buf, len);
fprintf (stderr, "\n");
return 0;
}
static int
emgetopt (char* optname, void* optval, unsigned short* optlen)
{
fprintf (stderr, "GETOPT %s\n", optname);
if (!strcmp(optname, "loopback"))
{
(*(int*) optval) = htonl(loopback);
*optlen = sizeof(int);
}
else
{
*optlen = 0;
}
return 0;
}
static int
emsetopt (char* optname, void* optval, unsigned short optlen)
{
fprintf (stderr, "SETOPT %s %hd\n", optname, optlen);
if (!strcmp(optname, "loopback") && optlen >= sizeof(int))
{
if (*(int*)optval)
loopback = 1;
else
loopback = 0;
}
return 0;
}
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