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comparison 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
comparison
equal deleted inserted replaced
173:f42854da4563 174:3256dc6e84ae
1 /*
2 * This program reads bytes from a serial port, parses them assuming
3 * TI's RVT MUX format, and prints every decoded packet.
4 */
5
6 #include <sys/types.h>
7 #include <sys/errno.h>
8 #include <stdio.h>
9 #include <stdlib.h>
10 #include <unistd.h>
11 #include <time.h>
12 #include "../pktmux.h"
13
14 extern int target_fd;
15 extern char *baudrate_name;
16
17 extern u_char rxpkt[];
18 extern size_t rxpkt_len;
19
20 char *logfname;
21 FILE *logF;
22 time_t logtime;
23 int background;
24
25 main(argc, argv)
26 char **argv;
27 {
28 extern char *optarg;
29 extern int optind;
30 int c;
31 fd_set fds;
32
33 while ((c = getopt(argc, argv, "bB:d:l:")) != EOF)
34 switch (c) {
35 case 'b':
36 background++;
37 continue;
38 case 'B':
39 baudrate_name = optarg;
40 continue;
41 case 'd':
42 target_fd = atoi(optarg);
43 continue;
44 case 'l':
45 logfname = optarg;
46 continue;
47 case '?':
48 default:
49 usage: fprintf(stderr,
50 "usage: %s [options] ttyport\n", argv[0]);
51 exit(1);
52 }
53 if (background && !logfname) {
54 fprintf(stderr, "%s: -b is meaningless without -l\n", argv[0]);
55 exit(1);
56 }
57 if (target_fd <= 0) {
58 if (argc - optind != 1)
59 goto usage;
60 open_target_serial(argv[optind]);
61 }
62
63 set_serial_nonblock(0);
64 setlinebuf(stdout);
65 if (logfname) {
66 logF = fopen(logfname, "w");
67 if (!logF) {
68 perror(logfname);
69 exit(1);
70 }
71 fprintf(logF, "*** Log of decoded RVT output ***\n");
72 setlinebuf(logF);
73 }
74 if (background) {
75 c = fork();
76 if (c < 0) {
77 perror("fork");
78 exit(1);
79 }
80 if (c) {
81 printf("rvtdump forked into background (pid %d)\n", c);
82 exit(0);
83 }
84 }
85 for (;;) {
86 FD_ZERO(&fds);
87 FD_SET(target_fd, &fds);
88 c = select(target_fd+1, &fds, 0, 0, 0);
89 time(&logtime);
90 if (c < 0) {
91 if (errno == EINTR)
92 continue;
93 perror("select");
94 exit(1);
95 }
96 if (FD_ISSET(target_fd, &fds))
97 process_serial_rx();
98 }
99 }
100
101 handle_rx_packet()
102 {
103 switch (rxpkt[0]) {
104 case RVT_RV_HEADER:
105 if (rxpkt_len < 6)
106 goto unknown;
107 print_rv_trace();
108 return;
109 case RVT_L1_HEADER:
110 print_l1_trace();
111 return;
112 case RVT_L23_HEADER:
113 print_g23_trace();
114 return;
115 case RVT_TM_HEADER:
116 print_etm_output_raw();
117 return;
118 default:
119 unknown:
120 print_unknown_packet();
121 }
122 }