From 6da96eeb2aa15b573407a6ed47c81b7041a7f32c Mon Sep 17 00:00:00 2001
From: Guy Harris <gharris@sonic.net>
Date: Fri, 26 Mar 2021 13:04:36 -0700
Subject: [PATCH] capture_opts: always initialize ifname to null.

Fixes #17318.
---
 capture_opts.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/capture_opts.c b/capture_opts.c
index ac08fcf687..b40d329f96 100644
--- a/capture_opts.c
+++ b/capture_opts.c
@@ -45,6 +45,7 @@ capture_opts_init(capture_options *capture_opts)
     capture_opts->num_selected                    = 0;
     capture_opts->default_options.name            = NULL;
     capture_opts->default_options.descr           = NULL;
+    capture_opts->default_options.ifname          = NULL;
     capture_opts->default_options.hardware        = NULL;
     capture_opts->default_options.display_name    = NULL;
     capture_opts->default_options.cfilter         = NULL;
@@ -1254,6 +1255,7 @@ collect_ifaces(capture_options *capture_opts)
         if (!device->hidden && device->selected) {
             interface_opts.name = g_strdup(device->name);
             interface_opts.descr = g_strdup(device->friendly_name);
+            interface_opts.ifname = NULL;
             interface_opts.hardware = g_strdup(device->vendor_description);
             interface_opts.display_name = g_strdup(device->display_name);
             interface_opts.linktype = device->active_dlt;