From 1397c7e479f33c1afca32027af11e359b4efff6e Mon Sep 17 00:00:00 2001
From: XANTRONIX Development <dev@xantronix.com>
Date: Fri, 24 Jul 2015 21:49:57 -0500
Subject: [PATCH] Oh cock

---
 src/if.c | 74 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 src/if.c

diff --git a/src/if.c b/src/if.c
new file mode 100644
index 0000000..91ae4dd
--- /dev/null
+++ b/src/if.c
@@ -0,0 +1,74 @@
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <patty/ax25.h>
+
+static patty_ax25_if *create_tnc(const char *device) {
+    patty_ax25_if *iface;
+
+    if ((iface = malloc(sizeof(*iface))) == NULL) {
+        goto error_malloc_iface;
+    }
+
+    memset(iface, '\0', sizeof(*iface));
+
+    if ((iface->tnc = patty_kiss_tnc_open(device, PATTY_KISS_BUFSZ)) == NULL) {
+        goto error_kiss_tnc_open;
+    }
+
+    iface->type = PATTY_AX25_IF_KISS_TNC_TTY;
+
+    return iface;
+
+error_kiss_tnc_open:
+    free(iface);
+
+error_malloc_iface:
+    return NULL;
+}
+
+static void destroy_tnc(patty_ax25_if *iface) {
+    patty_kiss_tnc_close(iface->tnc);
+}
+
+patty_ax25_if *patty_ax25_if_create(int opts, void *info) {
+    patty_ax25_if *iface;
+
+    switch (PATTY_AX25_IF_OPT_TYPE(opts)) {
+        case PATTY_AX25_IF_KISS_TNC_TTY: {
+            iface = create_tnc((const char *)info);
+            
+            break;
+        }
+
+        default: {
+            errno = EINVAL;
+
+            goto error;
+        }
+    }
+
+    if (iface == NULL) {
+        goto error;
+    }
+
+    if ((iface->addresses = patty_list_new()) == NULL) {
+        goto error;
+    }
+
+    return iface;
+
+error:
+    return NULL;
+}
+
+void patty_ax25_if_destroy(patty_ax25_if *iface) {
+    switch (iface->type) {
+        case PATTY_AX25_IF_KISS_TNC_TTY: {
+            destroy_tnc(iface); break;
+        }
+
+        default: break;
+    }
+}