libmbus/bin/mbus-tcp-request-data-multi-reply.c

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//------------------------------------------------------------------------------
// Copyright (C) 2011, Robert Johansson, Raditex AB
// All rights reserved.
//
// rSCADA
// http://www.rSCADA.se
// info@rscada.se
//
//------------------------------------------------------------------------------
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <mbus/mbus.h>
static int debug = 0;
//------------------------------------------------------------------------------
// Execution starts here:
//------------------------------------------------------------------------------
int
main(int argc, char **argv)
{
mbus_frame reply, *reply_iter;
mbus_frame_data reply_data;
mbus_handle *handle = NULL;
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char *host, *addr_str, matching_addr[16], *xml_result;
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int port, address;
memset((void *)&reply, 0, sizeof(mbus_frame));
memset((void *)&reply_data, 0, sizeof(mbus_frame_data));
if (argc == 4)
{
host = argv[1];
port = atoi(argv[2]);
addr_str = argv[3];
debug = 0;
}
else if (argc == 5 && strcmp(argv[1], "-d") == 0)
{
host = argv[2];
port = atoi(argv[3]);
addr_str = argv[4];
debug = 1;
}
else
{
fprintf(stderr, "usage: %s [-d] host port mbus-address\n", argv[0]);
fprintf(stderr, " optional flag -d for debug printout\n");
return 0;
}
if ((handle = mbus_connect_tcp(host, port)) == NULL)
{
fprintf(stderr, "Failed to setup connection to M-bus gateway\n");
return 1;
}
if (strlen(addr_str) == 16)
{
// secondary addressing
int probe_ret;
probe_ret = mbus_probe_secondary_address(handle, addr_str, matching_addr);
if (probe_ret == MBUS_PROBE_COLLISION)
{
fprintf(stderr, "%s: Error: The address mask [%s] matches more than one device.\n", __PRETTY_FUNCTION__, addr_str);
return 1;
}
else if (probe_ret == MBUS_PROBE_NOTHING)
{
fprintf(stderr, "%s: Error: The selected secondary address does not match any device [%s].\n", __PRETTY_FUNCTION__, addr_str);
return 1;
}
else if (probe_ret == MBUS_PROBE_ERROR)
{
fprintf(stderr, "%s: Error: Failed to probe secondary address [%s].\n", __PRETTY_FUNCTION__, addr_str);
return 1;
}
// else MBUS_PROBE_SINGLE
address = 253;
}
else
{
// primary addressing
address = atoi(addr_str);
}
// instead of the send and recv, use this sendrecv function that
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// takes care of the possibility of multi-telegram replies (limit = 16 frames)
if (mbus_sendrecv_request(handle, address, &reply, 16) == -1)
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{
fprintf(stderr, "Failed to send/receive M-Bus request.\n");
return 1;
}
//
// dump hex data if debug is true
//
if (debug)
{
mbus_frame_print(&reply);
}
//
// generate XML and print to standard output
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//
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if ((xml_result = mbus_frame_xml(&reply)) == NULL)
{
fprintf(stderr, "Failed to generate XML representation of MBUS frames: %s\n", mbus_error_str());
return 1;
}
printf("%s", xml_result);
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mbus_disconnect(handle);
return 0;
}