dwm

commit 771bd1711f7a5166a2ab1dbf424ae883bcba7b69
parent a1861872a25f3e26120905f3a08220b5cbeaf3f1
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:
M
dwm.c
 | 
3
+--

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);