From: Laslo Hunhold <dev@frign.de>
Date: Tue, 22 May 2018 10:50:43 +0000 (+0200)
Subject: Check printf() for output errors
X-Git-Url: https://git.atheridis.org/?a=commitdiff_plain;h=9c9ce8a125f35bab61c829bdd58bdf77b8352d5e;p=suckless%2Fslstatus.git

Check printf() for output errors

This way cases like

	$ slstatus -s > /dev/full

are properly caught and the program terminated with the proper return
code.
---

diff --git a/slstatus.c b/slstatus.c
index b3abafb..9bd9e81 100644
--- a/slstatus.c
+++ b/slstatus.c
@@ -102,7 +102,9 @@ main(int argc, char *argv[])
 		}
 
 		if (sflag) {
-			printf("%s\n", status);
+			if (printf("%s\n", status) < 0) {
+				die("printf:");
+			}
 		} else {
 			if (XStoreName(dpy, DefaultRootWindow(dpy), status) < 0) {
 				die("XStoreName: Allocation failed");