From 7d87c7c81732c5886a79d2cefb9e30842f9ac446 Mon Sep 17 00:00:00 2001
From: Donald Buczek <buczek@molgen.mpg.de>
Date: Mon, 3 May 2021 09:09:43 +0200
Subject: [PATCH] get_shadow_line: Handle config file read error

---
 get_shadow_line.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/get_shadow_line.c b/get_shadow_line.c
index 84ab79d..2c289ab 100644
--- a/get_shadow_line.c
+++ b/get_shadow_line.c
@@ -22,8 +22,12 @@ static int read_config(struct sockaddr_in *addr) {
     int port = -1;
     while (1) {
         int status = getline(&line, &n, f);
-        if (status == -1)
-             break;
+        if (status == -1) {
+            if (feof(f))
+                break;
+            perror(conf_filename);
+            return -1;
+        }
         char *comment = strchr(line, '#');
         if (comment) {
             *comment = 0;