Remove unused variables

Remove unused variables -- they cause warnings (and errors with
-Werror) when building with clang 3.4.

Change-Id: I03fff9b1b9d620763f41c8b31a19c4724726739c
Signed-off-by: Bernhard Rosenkränzer <Bernhard.Rosenkranzer@linaro.org>

5 files changed, 2 insertions, 6 deletions

diff --git a/clatd.c b/clatd.c
index 09a86de..a0ee07d 100644
--- a/clatd.c
+++ b/clatd.c
@@ -144,7 +144,6 @@ void deconfigure_tun_ipv6(const struct tun_data *tunnel) {
  * tunnel - tun device data
  */
 void configure_tun_ipv6(const struct tun_data *tunnel) {
-  struct in6_addr local_nat64_prefix_6;
   int status;
 
   status = if_route(tunnel->device6, AF_INET6, &Global_Clatd_Config.ipv6_local_subnet,
@@ -377,7 +376,6 @@ void read_packet(int active_fd, const struct tun_data *tunnel) {
     logmsg(ANDROID_LOG_WARN,"read_packet/tun interface removed");
     running = 0;
   } else {
-    struct tun_pi tun_header;
     ssize_t header_size = sizeof(struct tun_pi);
 
     if(readlen < header_size) {
diff --git a/config.c b/config.c
index 61a4ebb..b82ac6c 100644
--- a/config.c
+++ b/config.c
@@ -154,7 +154,7 @@ void free_config() {
  * does dns lookups to set the plat subnet or exits on failure, waits forever for a dns response with a query backoff timer
  */
 void dns64_detection() {
-  int i, backoff_sleep, status;
+  int backoff_sleep, status;
   struct in6_addr tmp_ptr;
 
   backoff_sleep = 1;
diff --git a/icmp.c b/icmp.c
index af96b83..75a4a4d 100644
--- a/icmp.c
+++ b/icmp.c
@@ -139,7 +139,7 @@ uint8_t icmp6_to_icmp_type(uint8_t type, uint8_t code) {
   }
 
   // We don't understand this ICMP type. Return parameter problem so the caller will bail out.
-  logmsg_dbg(ANDROID_LOG_DEBUG, "icmp6_to_icmp_type: unhandled ICMP type %d", type);
+  logmsg_dbg(ANDROID_LOG_DEBUG, "icmp6_to_icmp_type: unhandled ICMP type/code %d/%d", type, code);
   return ICMP_PARAMETERPROB;
 }
 
diff --git a/ipv6.c b/ipv6.c
index 04d9f9c..79303ec 100644
--- a/ipv6.c
+++ b/ipv6.c
@@ -90,7 +90,6 @@ int ipv6_packet(clat_packet out, int pos, const char *packet, size_t len) {
   size_t len_left;
   uint32_t checksum;
   int iov_len;
-  int i;
 
   if(len < sizeof(struct ip6_hdr)) {
     logmsg_dbg(ANDROID_LOG_ERROR, "ipv6_packet/too short for an ip6 header: %d", len);
diff --git a/translate.c b/translate.c
index 927b49c..00ea0b9 100644
--- a/translate.c
+++ b/translate.c
@@ -244,7 +244,6 @@ int icmp6_to_icmp(clat_packet out, int pos, const struct icmp6_hdr *icmp6,
                   const char *payload, size_t payload_size) {
   struct icmphdr *icmp_targ = out[pos].iov_base;
   uint8_t icmp_type;
-  int ttl;
   int clat_packet_len;
 
   memset(icmp_targ, 0, sizeof(struct icmphdr));