From 42f0b52d8fae12f2bbe82111a7312bf5d66fcb6b Mon Sep 17 00:00:00 2001
From: Christian Neukirchen <chneukirchen@gmail.com>
Date: Mon, 13 Jun 2016 15:50:17 +0200
Subject: check fscanf return value

---
 extrace.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/extrace.c b/extrace.c
index 50506ce..560481a 100644
--- a/extrace.c
+++ b/extrace.c
@@ -101,7 +101,8 @@ pid_depth(pid_t pid)
   snprintf(name, sizeof name, "/proc/%d/stat", pid);
 
   if ((f = fopen(name, "r"))) {
-    fscanf(f, "%*d (%*[^)]) %*c %d", &ppid);
+    if (fscanf(f, "%*d (%*[^)]) %*c %d", &ppid) < 0)
+      ppid = 0;
     fclose(f);
   }
 
-- 
cgit 1.4.1