FreeCalypso > hg > freecalypso-tools
view rvinterf/old/before-rvinterf/rvtdump.c @ 935:d203a9c7c4e6
rvinterf TM log: beginning of TM/ETM classification
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Tue, 23 May 2023 07:51:13 +0000 |
parents | e7502631a0f9 |
children |
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/* * This program reads bytes from a serial port, parses them assuming * TI's RVT MUX format, and prints every decoded packet. */ #include <sys/types.h> #include <sys/errno.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <time.h> extern int target_fd; extern char *baudrate_name; extern char pr_item[]; extern int sendsock_fd; char *logfname; FILE *logF; time_t logtime; int background, sendsock_enable; main(argc, argv) char **argv; { extern char *optarg; extern int optind; int c, maxfd; fd_set fds; while ((c = getopt(argc, argv, "bB:d:l:s")) != EOF) switch (c) { case 'b': background++; continue; case 'B': baudrate_name = optarg; continue; case 'd': target_fd = atoi(optarg); continue; case 'l': logfname = optarg; continue; case 's': sendsock_enable++; continue; case '?': default: usage: fprintf(stderr, "usage: %s [options] ttyport\n", argv[0]); exit(1); } if (background && !logfname) { fprintf(stderr, "%s: -b is meaningless without -l\n", argv[0]); exit(1); } if (target_fd <= 0) { if (argc - optind != 1) goto usage; open_target_serial(argv[optind]); } set_serial_nonblock(0); setlinebuf(stdout); if (logfname) { logF = fopen(logfname, "w"); if (!logF) { perror(logfname); exit(1); } fprintf(logF, "*** Log of decoded RVT output ***\n"); setlinebuf(logF); } if (sendsock_enable) create_send_socket(); if (background) { c = fork(); if (c < 0) { perror("fork"); exit(1); } if (c) { printf("rvtdump forked into background (pid %d)\n", c); exit(0); } } maxfd = target_fd; if (sendsock_fd > maxfd) maxfd = sendsock_fd; for (;;) { FD_ZERO(&fds); FD_SET(target_fd, &fds); if (sendsock_enable) FD_SET(sendsock_fd, &fds); c = select(maxfd+1, &fds, 0, 0, 0); time(&logtime); if (c < 0) { if (errno == EINTR) continue; perror("select"); exit(1); } if (FD_ISSET(target_fd, &fds)) process_serial_rx(); if (FD_ISSET(sendsock_fd, &fds)) handle_sendsock(); } } handle_rx_packet() { print_rx_packet(); } print_item() { if (!background) printf("%s\n", pr_item); if (logF) log_item(); }