Abuse epan_t more: add callback to get interface name.

svn path=/trunk/; revision=50794

1 files changed, 23 insertions, 0 deletions

diff --git a/cfile.c b/cfile.c
index 8fe484622c..50c532eb62 100644
--- a/cfile.c
+++ b/cfile.c
@@ -31,6 +31,29 @@
 
 #include "cfile.h"
 
+const char *
+cap_file_get_interface_name(void *data, guint32 interface_id)
+{
+  capture_file *cf = (capture_file *) data;
+  wtapng_iface_descriptions_t *idb_info;
+  const wtapng_if_descr_t *wtapng_if_descr = NULL;
+
+  idb_info = wtap_file_get_idb_info(cf->wth);
+
+  if (interface_id < idb_info->number_of_interfaces)
+    wtapng_if_descr = &g_array_index(idb_info->interface_data, wtapng_if_descr_t, interface_id);
+
+  g_free(idb_info);
+
+  if (wtapng_if_descr) {
+    if (wtapng_if_descr->if_name)
+      return wtapng_if_descr->if_name;
+    else if (wtapng_if_descr->if_description)
+      return wtapng_if_descr->if_description;
+  }
+  return "unknown";
+}
+
 void
 cap_file_init(capture_file *cf)
 {