Fix: remove tailing dots in URI.

This works around the problem that windows ignores tailing dots.
This way you could trick Icecast2 to send a XSLT file as plain text.

Please test.

Closes: #2247

Author: ph3-der-loewe

src/util.c

@@ -379,6 +379,9 @@ char *util_url_unescape (const char *src)
  */
 char *util_normalise_uri(const char *uri) {
     char *path;
+#ifdef _WIN32
+    size_t len;
+#endif
 
     if(uri[0] != '/')
         return NULL;
@@ -390,6 +393,12 @@ char *util_normalise_uri(const char *uri) {
         return NULL;
     }
 
+#ifdef _WIN32
+    /* If we are on Windows, strip trailing dots, as Win API strips it anyway */
+    for (len = strlen(path); len > 0 && path[len-1] == '.'; len--)
+        path[len-1] = '\0';
+#endif
+
     /* We now have a full URI-decoded path. Check it for allowability */
     if(verify_path(path))
         return path;