1 files changed, 165 insertions, 0 deletions
diff --git a/user_call/netrom_call.c b/user_call/netrom_call.c
new file mode 100644
index 0000000..004b109
--- /dev/null
+++ b/user_call/netrom_call.c
@@ -0,0 +1,165 @@
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <signal.h>
+
+#include <sys/time.h>
+#include <sys/types.h>
+
+#include <sys/socket.h>
+#include <netax25/ax25.h>
+#include <netrom/netrom.h>
+#include <netrose/rose.h>
+
+#include <netax25/axlib.h>
+#include <netax25/axconfig.h>
+#include <netax25/nrconfig.h>
+
+void alarm_handler(int sig)
+{
+}
+
+void err(char *message)
+{
+	write(STDOUT_FILENO, message, strlen(message));
+	exit(1);
+}
+
+int main(int argc, char **argv)
+{
+	char buffer[512], *addr;
+	fd_set read_fd;
+	int n, s, addrlen = sizeof(struct full_sockaddr_ax25);
+	struct full_sockaddr_ax25 nrbind, nrconnect;
+
+	/*
+	 * Arguments should be "netrom_call port mycall remaddr"
+	 */
+	if (argc != 4) {
+		strcpy(buffer, "ERROR: invalid number of parameters\r");
+		err(buffer);
+	}
+
+	if (nr_config_load_ports() == 0) {
+		strcpy(buffer, "ERROR: problem with nrports file\r");
+		err(buffer);
+	}
+
+	/*
+	 * Parse the passed values for correctness.
+	 */
+	nrconnect.fsa_ax25.sax25_family = nrbind.fsa_ax25.sax25_family = AF_NETROM;
+	nrbind.fsa_ax25.sax25_ndigis    = 1;
+	nrconnect.fsa_ax25.sax25_ndigis = 0;
+
+	if ((addr = nr_config_get_addr(argv[1])) == NULL) {
+		sprintf(buffer, "ERROR: invalid NET/ROM port name - %s\r", argv[1]);
+		err(buffer);
+	}
+
+	if (ax25_aton_entry(addr, nrbind.fsa_ax25.sax25_call.ax25_call) == -1) {
+		sprintf(buffer, "ERROR: invalid NET/ROM port callsign - %s\r", argv[1]);
+		err(buffer);
+	}
+
+	if (ax25_aton_entry(argv[2], nrbind.fsa_digipeater[0].ax25_call) == -1) {
+		sprintf(buffer, "ERROR: invalid callsign - %s\r", argv[2]);
+		err(buffer);
+	}
+
+	if ((addr = strchr(argv[3], ':')) == NULL)
+		addr = argv[3];
+	else
+		addr++;
+
+	if (ax25_aton_entry(addr, nrconnect.fsa_ax25.sax25_call.ax25_call) == -1) {
+		sprintf(buffer, "ERROR: invalid callsign - %s\r", argv[3]);
+		err(buffer);
+	}
+
+	/*
+	 * Open the socket into the kernel.
+	 */
+	if ((s = socket(AF_NETROM, SOCK_SEQPACKET, 0)) < 0) {
+		sprintf(buffer, "ERROR: cannot open NET/ROM socket, %s\r", strerror(errno));
+		err(buffer);
+	}
+
+	/*
+	 * Set our AX.25 callsign and NET/ROM callsign accordingly.
+	 */
+	if (bind(s, (struct sockaddr *)&nrbind, addrlen) != 0) {
+		sprintf(buffer, "ERROR: cannot bind NET/ROM socket, %s\r", strerror(errno));
+		err(buffer);
+	}
+
+	sprintf(buffer, "Connecting to %s ...\r", argv[3]);
+	write(STDOUT_FILENO, buffer, strlen(buffer));
+
+	/*
+	 * If no response in 30 seconds, go away.
+	 */
+	alarm(30);
+
+	signal(SIGALRM, alarm_handler);
+
+	/*
+	 * Lets try and connect to the far end.
+	 */
+	if (connect(s, (struct sockaddr *)&nrconnect, addrlen) != 0) {
+		switch (errno) {
+			case ECONNREFUSED:
+				strcpy(buffer, "*** Connection refused - aborting\r");
+				break;
+			case ENETUNREACH:
+				strcpy(buffer, "*** No known route - aborting\r");
+				break;
+			case EINTR:
+				strcpy(buffer, "*** Connection timed out - aborting\r");
+				break;
+			default:
+				sprintf(buffer, "ERROR: cannot connect to NET/ROM node, %s\r", strerror(errno));
+				break;
+		}
+
+		err(buffer);
+	}
+
+	/*
+	 * We got there.
+	 */
+	alarm(0);
+
+	strcpy(buffer, "*** Connected\r");
+	write(STDOUT_FILENO, buffer, strlen(buffer));
+
+	/*
+	 * Loop until one end of the connection goes away.
+	 */
+	for (;;) {
+		FD_ZERO(&read_fd);
+		FD_SET(STDIN_FILENO, &read_fd);
+		FD_SET(s, &read_fd);
+		
+		select(s + 1, &read_fd, NULL, NULL, NULL);
+
+		if (FD_ISSET(s, &read_fd)) {
+			if ((n = read(s, buffer, 512)) == -1) {
+				strcpy(buffer, "\r*** Disconnected\r");
+				err(buffer);
+			}
+			write(STDOUT_FILENO, buffer, n);
+		}
+
+		if (FD_ISSET(STDIN_FILENO, &read_fd)) {
+			if ((n = read(STDIN_FILENO, buffer, 512)) == -1) {
+				close(s);
+				break;
+			}
+			write(s, buffer, n);
+		}
+	}
+
+	return 0;
+}