Enable and fix many extra warnings supported by GCC and Clang.

[tinc] / src / protocol_auth.c

diff --git a/src/protocol_auth.c b/src/protocol_auth.c
index 12dc144..02b7399 100644 (file)
--- a/src/protocol_auth.c
+++ b/src/protocol_auth.c
@@ -1,7 +1,7 @@
 /*
     protocol_auth.c -- handle the meta-protocol, authentication
     Copyright (C) 1999-2005 Ivo Timmermans,
-                  2000-2017 Guus Sliepen <guus@tinc-vpn.org>
+                  2000-2022 Guus Sliepen <guus@tinc-vpn.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -287,7 +287,12 @@ static bool receive_invitation_sptps(void *handle, uint8_t type, const void *dat
 
        // Read the new node's Name from the file
        char buf[1024] = "";
-       fgets(buf, sizeof(buf), f);
+
+       if(!fgets(buf, sizeof(buf), f)) {
+               logger(DEBUG_ALWAYS, LOG_ERR, "Could not read invitation file %s\n", cookie);
+               return false;
+       }
+
        size_t buflen = strlen(buf);
 
        // Strip whitespace at the end