From 1bef463d8b4c58c68e48f6408d1b9a46a1b9707f Mon Sep 17 00:00:00 2001
From: XANTRONIX Development <dev@xantronix.com>
Date: Tue, 21 Jul 2015 21:49:53 +0000
Subject: [PATCH] Incremental...

---
 include/patty/ax25.h | 13 +++++++------
 src/ax25.c           | 39 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 46 insertions(+), 6 deletions(-)

diff --git a/include/patty/ax25.h b/include/patty/ax25.h
index 326a997..59e1299 100644
--- a/include/patty/ax25.h
+++ b/include/patty/ax25.h
@@ -33,12 +33,6 @@ typedef struct _patty_ax25_stats {
 
 typedef struct _patty_ax25_address patty_ax25_port;
 
-typedef struct _patty_ax25_link {
-    patty_ax25_port  local;
-    patty_ax25_port  remote;
-    patty_ax25_stats stats;
-} patty_ax25_link;
-
 typedef struct _patty_ax25_if {
     enum patty_ax25_if_type type;
     patty_kiss_tnc *        tnc;
@@ -46,6 +40,13 @@ typedef struct _patty_ax25_if {
     patty_dict *            ports;
 } patty_ax25_if;
 
+typedef struct _patty_ax25_link {
+    patty_ax25_if *    iface;
+    patty_ax25_port  * local;
+    patty_ax25_port  * remote;
+    patty_ax25_stats * stats;
+} patty_ax25_link;
+
 typedef struct _patty_ax25 {
     patty_dict * ifaces; /* Key: AX.25 interface name */
     patty_dict * ports;  /* Key: Integer port descriptor */
diff --git a/src/ax25.c b/src/ax25.c
index 3cafc33..ba4aab7 100644
--- a/src/ax25.c
+++ b/src/ax25.c
@@ -1,3 +1,4 @@
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <errno.h>
@@ -90,3 +91,41 @@ patty_ax25_if *patty_ax25_create_if(patty_ax25 *ax25, int opts, void *info) {
 
     return NULL;
 }
+
+patty_ax25_port *patty_ax25_listen(patty_ax25 *ax25, patty_ax25_if *iface, const char *callsign, int ssid) {
+    patty_ax25_port *port;
+    char key[10];
+
+    if ((port = malloc(sizeof(*port))) == NULL) {
+        goto error_malloc_port;
+    }
+
+    if (strncpy(port->callsign, callsign, 7) == NULL) {
+        goto error_strncpy_callsign;
+    }
+
+    port->ssid     = ssid;
+    port->repeated = 0;
+
+    if (snprintf(key, sizeof(key), "%s/%d", callsign, ssid) < 0) {
+        goto error_snprintf_key;
+    }
+
+    if (patty_dict_set(iface->ports, (void *)key, strlen(key), port) == NULL) {
+        goto error_dict_set_port;
+    }
+
+    if (patty_dict_set(ax25->ports, (void *)key, strlen(key), port) == NULL) {
+        goto error_dict_set_port;
+    }
+
+    return port;
+
+error_dict_set_port:
+error_strncpy_callsign:
+error_snprintf_key:
+    free(port);
+
+error_malloc_port:
+    return NULL;
+}