fix for loop variable initialization

https://github.com/TeamSpeak-Systems/ts3init_linux_netfilter_module/issues/3
Thanks to hunterpl for reporting this

src/libxt_TS3INIT_SET_COOKIE.c

@@ -81,6 +81,7 @@ static int ts3init_set_cookie_tg_parse(int c, char **argv,
 
 static void ts3init_set_cookie_tg_save(const void *ip, const struct xt_entry_target *target)
 {
+    int i;
     const struct xt_ts3init_set_cookie_tginfo *info = (const void *)target->data;
     if (info->specific_options & TARGET_SET_COOKIE_ZERO_RANDOM_SEQUENCE)
     {
@@ -89,7 +90,7 @@ static void ts3init_set_cookie_tg_save(const void *ip, const struct xt_entry_tar
     if (info->specific_options & TARGET_SET_COOKIE_RANDOM_SEED_FROM_ARGUMENT)
     {
         printf("--random-seed ");
-        for (int i = 0; i < RANDOM_SEED_LEN; i++)
+        for (i = 0; i < RANDOM_SEED_LEN; i++)
         {
             printf("%02X", info->random_seed[i]);
         }

src/libxt_ts3init_get_puzzle.c

@@ -99,6 +99,7 @@ static int ts3init_get_puzzle_parse(int c, char **argv, int invert, unsigned int
 
 static void ts3init_get_puzzle_save(const void *ip, const struct xt_entry_match *match)
 {
+    int i;
     const struct xt_ts3init_get_puzzle_mtinfo *info = (const void *)match->data;
     if (info->common_options & CHK_COMMON_CLIENT_VERSION)
     {
@@ -111,7 +112,7 @@ static void ts3init_get_puzzle_save(const void *ip, const struct xt_entry_match
     if (info->specific_options & CHK_GET_PUZZLE_RANDOM_SEED_FROM_ARGUMENT)
     {
         printf("--random-seed ");
-        for (int i = 0; i < RANDOM_SEED_LEN; i++)
+        for (i = 0; i < RANDOM_SEED_LEN; i++)
         {
                 printf("%02X", info->random_seed[i]);
         }