Import ax25-tools 0.0.1 from tarballax25-tools-0.0.1

1 files changed, 163 insertions, 0 deletions

diff --git a/ax25/beacon.c b/ax25/beacon.c
new file mode 100644
index 0000000..c9b989e
--- /dev/null
+++ b/ax25/beacon.c
@@ -0,0 +1,163 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <syslog.h>
+#include <signal.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <netax25/ax25.h>
+#include <netrose/rose.h>
+
+#include <netax25/axlib.h>
+#include <netax25/axconfig.h>
+#include <netax25/daemon.h>
+
+#include <config.h>
+
+static int logging = FALSE;
+static int mail = FALSE;
+static int single = FALSE;
+
+static void terminate(int sig)
+{
+	if (logging) {
+		syslog(LOG_INFO, "terminating on SIGTERM\n");
+		closelog();
+	}
+	
+	exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+	struct full_sockaddr_ax25 dest;
+	struct full_sockaddr_ax25 src;
+	int s, n, dlen, len, interval = 30;
+	char addr[20], *port, *message, *portcall;
+	char *srccall = NULL, *destcall = NULL;
+	
+	while ((n = getopt(argc, argv, "c:d:lmst:v")) != -1) {
+		switch (n) {
+			case 'c':
+				srccall = optarg;
+				break;
+			case 'd':
+				destcall = optarg;
+				break;
+			case 'l':
+				logging = TRUE;
+				break;
+			case 'm':
+				mail = TRUE;
+				/* falls through */
+			case 's':
+				single = TRUE;
+				break;
+			case 't':
+				interval = atoi(optarg);
+				if (interval < 1) {
+					fprintf(stderr, "beacon: interval must be greater than on minute\n");
+					return 1;
+				}
+				break;
+			case 'v':
+				printf("beacon: %s\n", VERSION);
+				return 0;
+			case '?':
+			case ':':
+				fprintf(stderr, "usage: beacon [-c <src_call>] [-d <dest_call>] [-l] [-m] [-s] [-t interval] [-v] <port> <message>\n");
+				return 1;
+		}
+	}
+
+	signal(SIGTERM, terminate);
+
+	if (optind == argc || optind == argc - 1) {
+		fprintf(stderr, "usage: beacon [-c <src_call>] [-d <dest_call>] [-l] [-m] [-s] [-t interval] [-v] <port> <message>\n");
+		return 1;
+	}
+
+	port    = argv[optind];
+	message = argv[optind + 1];
+	
+	if (ax25_config_load_ports() == 0) {
+		fprintf(stderr, "beacon: no AX.25 ports defined\n");
+		return 1;
+	}
+
+	if ((portcall = ax25_config_get_addr(port)) == NULL) {
+		fprintf(stderr, "beacon: invalid AX.25 port setting - %s\n", port);
+		return 1;
+	}
+
+	if (mail)
+		strcpy(addr, "MAIL");
+	else if (destcall != NULL)
+		strcpy(addr, destcall);
+	else
+		strcpy(addr, "IDENT");
+
+	if ((dlen = ax25_aton(addr, &dest)) == -1) {
+		fprintf(stderr, "beacon: unable to convert callsign '%s'\n", addr);
+		return 1;
+	}
+
+	if (srccall != NULL && strcmp(srccall, portcall) != 0)
+		sprintf(addr, "%s %s", srccall, portcall);
+	else
+		strcpy(addr, portcall);
+
+	if ((len = ax25_aton(addr, &src)) == -1) {
+		fprintf(stderr, "beacon: unable to convert callsign '%s'\n", addr);
+		return 1;
+	}
+
+	if (!single) {
+		if (!daemon_start(FALSE)) {
+			fprintf(stderr, "beacon: cannot become a daemon\n");
+			return 1;
+		}
+	}
+
+	if (logging) {
+		openlog("beacon", LOG_PID, LOG_DAEMON);
+		syslog(LOG_INFO, "starting");
+	}
+
+	for (;;) {
+		if ((s = socket(AF_AX25, SOCK_DGRAM, 0)) == -1) {
+			if (logging) {
+				syslog(LOG_ERR, "socket: %m");
+				closelog();
+			}
+			return 1;
+		}
+
+		if (bind(s, (struct sockaddr *)&src, len) == -1) {
+			if (logging) {
+				syslog(LOG_ERR, "bind: %m");
+				closelog();
+			}
+			return 1;
+		}
+		
+		if (sendto(s, message, strlen(message), 0, (struct sockaddr *)&dest, dlen) == -1) {
+			if (logging) {
+				syslog(LOG_ERR, "sendto: %m");
+				closelog();
+			}
+			return 1;
+		}
+
+		close(s);
+
+		if (!single)
+			sleep(interval * 60);
+		else
+			break;
+	}
+
+	return 0;
+}