131 lines
2.5 KiB
C
131 lines
2.5 KiB
C
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/*
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* calibrate : Modem calibration utility
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* Most code is portion of beacon.c of the standard ax25-utils package
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* F1OAT 980321
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* mods by N1URO 151123
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*/
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <syslog.h>
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#include <signal.h>
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#include <time.h>
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#include <sys/time.h>
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#include <sys/socket.h>
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#include <netax25/axlib.h>
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#include <netax25/axconfig.h>
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#include <netax25/nrconfig.h>
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#include <netax25/rsconfig.h>
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#include <netax25/procutils.h>
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#include <netax25/mheard.h>
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#include <netax25/daemon.h>
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#define BUFLEN 256
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#define NBFRAMES 100
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#define TEMPO 1000
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static void Usage(void)
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{
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fprintf(stderr, "Usage : calibrate [-t ms] interface\n");
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exit(1);
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}
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int main(int argc, char *argv[])
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{
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struct full_sockaddr_ax25 dest;
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struct full_sockaddr_ax25 src;
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int i, s, dlen, len, tempo = TEMPO;
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char *port;
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char *srccall = NULL, *destcall = "CAL";
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char buffer[BUFLEN];
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fd_set rfds;
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struct timeval tv;
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if (argc < 2) Usage();
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while ((s = getopt(argc, argv, "t:")) != -1) {
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switch (s) {
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case 't':
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tempo = atoi(optarg);
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break;
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case ':':
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fprintf(stderr, "calibrate: option -t needs a duration in ms\n");
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return 1;
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case '?':
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Usage();
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return 1;
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}
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}
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if (optind == argc) {
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Usage();
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return 1;
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}
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port = argv[optind];
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if (ax25_config_load_ports() == 0) {
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fprintf(stderr, "calibrate: no AX.25 interfaces defined\n");
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return 1;
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}
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if ((srccall = ax25_config_get_addr(port)) == NULL) {
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fprintf(stderr, "calibrate: invalid AX.25 interface setting - %s\n", port);
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return 1;
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}
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if ((dlen = ax25_aton(destcall, &dest)) == -1) {
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fprintf(stderr, "calibrate: unable to convert callsign '%s'\n", destcall);
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return 1;
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}
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if ((len = ax25_aton(srccall, &src)) == -1) {
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fprintf(stderr, "calibrate: unable to convert callsign '%s'\n", srccall);
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return 1;
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}
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if ((s = socket(AF_AX25, SOCK_DGRAM, 0)) == -1) {
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perror("socket");
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return 1;
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}
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if (bind(s, (struct sockaddr *)&src, len) == -1) {
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perror("bind");
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return 1;
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}
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printf("Press return to stop calibrate\n");
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for (i = 0 ; i < BUFLEN ; i++)
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buffer[i] = 0x55;
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for (i = 0 ; i < NBFRAMES ; i++) {
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/* fd_set rfds;
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struct timeval tv;
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*/
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tv.tv_sec = tempo / 1000;
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tv.tv_usec = (tempo % 1000) * 1000;
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FD_ZERO(&rfds);
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FD_SET(0, &rfds);
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if (select(1, &rfds, NULL, NULL, &tv) == 1) break;
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buffer[0] = (i / 100) + '0';
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buffer[1] = ((i % 100) / 10) + '0';
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buffer[2] = (i % 10) + '0';
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if (sendto(s, buffer, BUFLEN, 0, (struct sockaddr *)&dest, dlen) == -1) {
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perror("sendto");
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}
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}
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close(s);
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return 0;
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}
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