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annotate rvinterf/lowlevel/rvtdump.c @ 174:3256dc6e84ae

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rvinterf: refactored rvtdump compiles and works
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Fri, 22 Nov 2013 07:41:31 +0000
parents rvinterf/old/rvtdump.c@f42854da4563
children 549e6cd1e77d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
126
811b138f1bed rvtdump utility written, compiles
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1 /*
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2 * This program reads bytes from a serial port, parses them assuming
811b138f1bed rvtdump utility written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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3 * TI's RVT MUX format, and prints every decoded packet.
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4 */
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5
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6 #include <sys/types.h>
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7 #include <sys/errno.h>
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8 #include <stdio.h>
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9 #include <stdlib.h>
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10 #include <unistd.h>
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11 #include <time.h>
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12 #include "../pktmux.h"
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13
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14 extern int target_fd;
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15 extern char *baudrate_name;
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16
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17 extern u_char rxpkt[];
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18 extern size_t rxpkt_len;
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19
134
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20 char *logfname;
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21 FILE *logF;
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22 time_t logtime;
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23 int background;
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24
126
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25 main(argc, argv)
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26 char **argv;
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27 {
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28 extern char *optarg;
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29 extern int optind;
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30 int c;
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31 fd_set fds;
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32
174
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33 while ((c = getopt(argc, argv, "bB:d:l:")) != EOF)
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34 switch (c) {
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35 case 'b':
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36 background++;
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37 continue;
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38 case 'B':
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39 baudrate_name = optarg;
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40 continue;
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41 case 'd':
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42 target_fd = atoi(optarg);
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43 continue;
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44 case 'l':
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45 logfname = optarg;
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46 continue;
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47 case '?':
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48 default:
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49 usage: fprintf(stderr,
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50 "usage: %s [options] ttyport\n", argv[0]);
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51 exit(1);
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52 }
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53 if (background && !logfname) {
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54 fprintf(stderr, "%s: -b is meaningless without -l\n", argv[0]);
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55 exit(1);
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56 }
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57 if (target_fd <= 0) {
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58 if (argc - optind != 1)
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59 goto usage;
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60 open_target_serial(argv[optind]);
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61 }
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62
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63 set_serial_nonblock(0);
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64 setlinebuf(stdout);
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65 if (logfname) {
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66 logF = fopen(logfname, "w");
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67 if (!logF) {
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68 perror(logfname);
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69 exit(1);
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70 }
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71 fprintf(logF, "*** Log of decoded RVT output ***\n");
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72 setlinebuf(logF);
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73 }
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74 if (background) {
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75 c = fork();
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76 if (c < 0) {
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77 perror("fork");
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78 exit(1);
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79 }
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80 if (c) {
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81 printf("rvtdump forked into background (pid %d)\n", c);
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82 exit(0);
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83 }
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84 }
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85 for (;;) {
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86 FD_ZERO(&fds);
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87 FD_SET(target_fd, &fds);
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88 c = select(target_fd+1, &fds, 0, 0, 0);
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89 time(&logtime);
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90 if (c < 0) {
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91 if (errno == EINTR)
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92 continue;
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93 perror("select");
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94 exit(1);
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95 }
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96 if (FD_ISSET(target_fd, &fds))
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97 process_serial_rx();
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98 }
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99 }
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100
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101 handle_rx_packet()
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102 {
174
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103 switch (rxpkt[0]) {
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104 case RVT_RV_HEADER:
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105 if (rxpkt_len < 6)
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106 goto unknown;
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107 print_rv_trace();
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108 return;
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109 case RVT_L1_HEADER:
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110 print_l1_trace();
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111 return;
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112 case RVT_L23_HEADER:
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113 print_g23_trace();
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114 return;
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115 case RVT_TM_HEADER:
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116 print_etm_output_raw();
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117 return;
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118 default:
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119 unknown:
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120 print_unknown_packet();
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121 }
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122 }