Fix memory leakage with GPX/XML extension tags

diff --git a/gpx.c b/gpx.c
index f9d82ba277a54d5a6039a1435e307465bb03cea5..62c67b2fdb4384295d694efc1808a27ee9089776 100644 (file)
--- a/gpx.c
+++ b/gpx.c
@@ -915,6 +915,8 @@ fprint_xml_chain( xml_tag *tag, const waypoint *wpt )
 void free_gpx_extras( xml_tag *tag )
 {
        xml_tag *next = NULL;
+       char **ap;
+       
        while ( tag ) {
                if (tag->cdata) {
                        xfree(tag->cdata);
@@ -929,8 +931,14 @@ void free_gpx_extras( xml_tag *tag )
                        xfree(tag->tagname);
                }
                if (tag->attributes) {
-                       xfree(tag->attributes);
+                       ap = tag->attributes;
+
+                       while (*ap)
+                               xfree(*ap++);
+
+                       xfree(tag->attributes);
                }
+               
                next = tag->sibling;
                xfree(tag);
                tag = next;