From 820e374169166922f73ee14fe1fd29bb0703392d Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@keithp.com>
Date: Mon, 16 Nov 2020 11:37:26 -0800
Subject: [PATCH] Require path-based socket names to start with leading '/'

This avoids connecting to paths which happen to match other display
names, like ':0'.

Signed-off-by: Keith Packard <keithp@keithp.com>
---
 src/xcb_util.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/xcb_util.c b/src/xcb_util.c
index 41a7b04..1c09c98 100644
--- a/src/xcb_util.c
+++ b/src/xcb_util.c
@@ -107,6 +107,9 @@ static int _xcb_parse_display_path_to_socket(const char *name, char **host, char
     char path[PATH_MAX];
     int _screen = 0;
 
+    if (name[0] != '/')
+        return 0;
+
     xcb_strlcpy(path, name, sizeof(path));
     if (0 != stat(path, &sbuf)) {
         char *dot = strrchr(path, '.');