bf12395af9
Because of the multi telegrams it is impossible to use a fixed buffer for XML output on the stack. Now the buffer is allocated on the heap. These also leads to a change in return behaviour for all XML functions, because it's possible that the buffer is NULL. For variable data this buffer grows every time there are less than 1024 bytes left for a new record.
107 lines
2.2 KiB
C
107 lines
2.2 KiB
C
//------------------------------------------------------------------------------
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// Copyright (C) 2010, Raditex AB
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// All rights reserved.
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//
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// rSCADA
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// http://www.rSCADA.se
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// info@rscada.se
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//
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//------------------------------------------------------------------------------
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#include <sys/types.h>
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#include <err.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <termios.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <mbus/mbus-protocol.h>
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int
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main(int argc, char *argv[])
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{
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int fd, len, i, result;
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u_char raw_buff[4096], buff[4096], *ptr, *endptr;
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mbus_frame reply;
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mbus_frame_data frame_data;
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char *xml_result = NULL;
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if (argc != 2)
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{
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fprintf(stderr, "usage: %s hex-file\n", argv[0]);
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return 1;
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}
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if ((fd = open(argv[1], O_RDONLY, 0)) == -1)
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{
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fprintf(stderr, "%s: failed to open '%s'", argv[0], argv[1]);
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return 1;
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}
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memset(raw_buff, 0, sizeof(raw_buff));
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len = read(fd, raw_buff, sizeof(raw_buff));
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close(fd);
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i = 0;
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ptr = 0;
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endptr = raw_buff;
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while (i < sizeof(buff)-1)
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{
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ptr = endptr;
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buff[i] = (u_char)strtol(ptr, (char **)&endptr, 16);
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// abort at non hex value
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if (ptr == endptr)
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break;
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i++;
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}
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memset(&reply, 0, sizeof(reply));
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memset(&frame_data, 0, sizeof(frame_data));
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//mbus_parse_set_debug(1);
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result = mbus_parse(&reply, buff, i);
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if (result < 0)
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{
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fprintf(stderr, "mbus_parse: %s\n", mbus_error_str());
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return 1;
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}
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else if (result > 0)
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{
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fprintf(stderr, "mbus_parse: need %d more bytes\n", result);
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return 1;
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}
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result = mbus_frame_data_parse(&reply, &frame_data);
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if (result != 0)
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{
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mbus_frame_print(&reply);
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fprintf(stderr, "mbus_frame_data_parse: %s\n", mbus_error_str());
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return 1;
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}
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//mbus_frame_print(&reply);
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//mbus_frame_data_print(&frame_data);
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if ((xml_result = mbus_frame_data_xml(&frame_data)) == NULL)
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{
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fprintf(stderr, "Failed to generate XML representation of MBUS frame: %s\n", mbus_error_str());
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return 1;
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}
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printf("%s", xml_result);
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free(xml_result);
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return 0;
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}
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