commit 99f78fa553f9ddb23fab73e47a408d66ca7f974c
parent a9b6a312a77b9cc81ca8b08a95c09e9f7948d7a6
Author: Hiltjo Posthuma <hiltjo@codemadness.org>
Date:   Fri,  3 Nov 2017 16:36:32 +0100
gettextprop: check result of XGetTextProperty (undefined behaviour for XFree)
Diffstat:
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/dwm.c b/dwm.c
@@ -910,8 +910,7 @@ gettextprop(Window w, Atom atom, char *text, unsigned int size)
 	if (!text || size == 0)
 		return 0;
 	text[0] = '\0';
-	XGetTextProperty(dpy, w, &name, atom);
-	if (!name.nitems)
+	if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems)
 		return 0;
 	if (name.encoding == XA_STRING)
 		strncpy(text, (char *)name.value, size - 1);