From 454e3ff7202666900c55d852317fea01017ed7e3 Mon Sep 17 00:00:00 2001
From: Vincent Malguy <vincent.malguy@corp.ovh.com>
Date: Fri, 9 Oct 2015 18:17:35 +0200
Subject: [PATCH] fix use of an unallocated variable

---
 auth.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/auth.c b/auth.c
index ad38ab2..b2048ec 100644
--- a/auth.c
+++ b/auth.c
@@ -64,7 +64,6 @@ static int derive_key(struct vtun_host *host)
    unsigned char salt[crypto_pwhash_scryptsalsa208sha256_SALTBYTES];
    int           ret = -1;
    size_t  bin_len;
-   const char ** const hex_end;
 
    if (host->key != NULL) {
       return 0;
@@ -74,7 +73,7 @@ static int derive_key(struct vtun_host *host)
    }
 
    sodium_hex2bin(host->key, HOST_KEYBYTES,host->passwd,
-                              strlen(host->passwd), "", &bin_len, hex_end);
+                              strlen(host->passwd), "", &bin_len, NULL);
    if (bin_len == HOST_KEYBYTES) {
      vtun_syslog(LOG_ERR,"supplied password is long enough to be the secret");
      return 0;