From: David Hill <dhill@conformal.com>
Date: Thu, 12 Jul 2012 21:14:47 +0000 (-0400)
Subject: check to see if there is actual data to use before proceeding
X-Git-Url: https://jasonwoof.com/gitweb/?a=commitdiff_plain;h=700a30a130810879322225353c114449084ca1fc;p=spectrwm.git

check to see if there is actual data to use before proceeding
---

diff --git a/spectrwm.c b/spectrwm.c
index 408efc2..92576fe 100644
--- a/spectrwm.c
+++ b/spectrwm.c
@@ -3778,14 +3778,15 @@ get_win_name(xcb_window_t win)
 
 	c = xcb_icccm_get_wm_name(conn, win);
 	if (xcb_icccm_get_wm_name_reply(conn, c, &r, NULL)) {
-		name = malloc(r.name_len + 1);
-		if (!name) {
-			xcb_get_text_property_reply_wipe(&r);
-			return (NULL);
+		if (r.name_len > 0) {
+			name = malloc(r.name_len + 1);
+			if (!name) {
+				xcb_get_text_property_reply_wipe(&r);
+				return (NULL);
+			}
+			memcpy(name, r.name, r.name_len);
+			name[r.name_len] = '\0';
 		}
-		memcpy(name, r.name, r.name_len);
-		name[r.name_len] = '\0';
-		
 		xcb_get_text_property_reply_wipe(&r);
 	}