Change space indention (#556)

* readability code clean-up

* readability code clean-up

* change space indention

* change space indention

* Update sn_utils.c

src/edge.c

@@ -211,6 +211,7 @@ static void help() {
 /* *************************************************** */
 
 static void setPayloadCompression (n2n_edge_conf_t *conf, int compression) {
+
     /* even though 'compression' and 'conf->compression' share the same encoding scheme,
      * a switch-statement under conditional compilation is used to sort out the
      * unsupported optarguments */
@@ -238,6 +239,7 @@ static void setPayloadCompression (n2n_edge_conf_t *conf, int compression) {
 /* *************************************************** */
 
 static void setPayloadEncryption (n2n_edge_conf_t *conf, int cipher) {
+
     /* even though 'cipher' and 'conf->transop_id' share the same encoding scheme,
      * a switch-statement under conditional compilation is used to sort out the
      * unsupported ciphers */
@@ -278,6 +280,7 @@ static void setPayloadEncryption (n2n_edge_conf_t *conf, int cipher) {
 /* *************************************************** */
 
 static int setOption (int optkey, char *optargument, n2n_tuntap_priv_config_t *ec, n2n_edge_conf_t *conf) {
+
     /* traceEvent(TRACE_NORMAL, "Option %c = %s", optkey, optargument ? optargument : ""); */
 
     switch(optkey) {
@@ -536,6 +539,7 @@ static const struct option long_options[] =
 
 /* read command line options */
 static int loadFromCLI (int argc, char *argv[], n2n_edge_conf_t *conf, n2n_tuntap_priv_config_t *ec) {
+
     u_char c;
 
     while ((c = getopt_long(argc, argv,
@@ -555,6 +559,7 @@ static int loadFromCLI (int argc, char *argv[], n2n_edge_conf_t *conf, n2n_tunta
 /* *************************************************** */
 
 static char *trim (char *s) {
+
     char *end;
 
     while(isspace(s[0]) || (s[0] == '"') || (s[0] == '\'')) s++;
@@ -573,6 +578,7 @@ static char *trim (char *s) {
 
 /* parse the configuration file */
 static int loadFromFile (const char *path, n2n_edge_conf_t *conf, n2n_tuntap_priv_config_t *ec) {
+
     char buffer[4096], *line, *key, *value;
     u_int line_len, opt_name_len;
     FILE *fd;
@@ -733,6 +739,7 @@ BOOL WINAPI term_handler(DWORD sig)
 
 /** Entry point to program from kernel. */
 int main (int argc, char* argv[]) {
+
     int rc;
     tuntap_dev tuntap;        /* a tuntap device */
     n2n_edge_t *eee;            /* single instance for this program */

src/edge_utils.c

@@ -275,8 +275,9 @@ n2n_edge_t* edge_init (const n2n_edge_conf_t *conf, int *rv) {
 
     eee->conf.auth.scheme = n2n_auth_simple_id;
 
-  for (idx = 0; idx < N2N_AUTH_TOKEN_SIZE; ++idx)
+    for(idx = 0; idx < N2N_AUTH_TOKEN_SIZE; ++idx) {
         eee->conf.auth.token[idx] = n2n_rand() % 0xff;
+    }
 
     eee->conf.auth.toksize = sizeof(eee->conf.auth.token);
 
@@ -443,6 +444,7 @@ static void register_with_new_peer (n2n_edge_t *eee,
                                     const n2n_ip_subnet_t *dev_addr,
                                     const n2n_desc_t *dev_desc,
                                     const n2n_sock_t *peer) {
+
     /* REVISIT: purge of pending_peers not yet done. */
     struct peer_info *scan;
     macstr_t mac_buf;
@@ -467,7 +469,6 @@ static void register_with_new_peer (n2n_edge_t *eee,
 
         traceEvent(TRACE_DEBUG, "Pending peers list size=%u",
                    HASH_COUNT(eee->pending_peers));
-
         /* trace Sending REGISTER */
         if(from_supernode) {
             /* UDP NAT hole punching through supernode. Send to peer first(punch local UDP hole)
@@ -825,8 +826,9 @@ static void send_register_super (n2n_edge_t *eee) {
     cmn.flags = 0;
     memcpy(cmn.community, eee->conf.community_name, N2N_COMMUNITY_SIZE);
 
-  for(idx = 0; idx < N2N_COOKIE_SIZE; ++idx)
+    for(idx = 0; idx < N2N_COOKIE_SIZE; ++idx) {
         eee->curr_sn->last_cookie[idx] = n2n_rand() % 0xff;
+    }
 
     memcpy(reg.cookie, eee->curr_sn->last_cookie, N2N_COOKIE_SIZE);
     reg.dev_addr.net_addr = ntohl(eee->device.ip_addr);
@@ -1111,9 +1113,9 @@ void update_supernode_reg (n2n_edge_t * eee, time_t nowTime) {
             }
         }
 
-  }
-  else
+    } else {
         --(eee->sup_attempts);
+    }
 
     if(supernode2sock(&(eee->supernode), eee->curr_sn->ip_addr) == 0) {
         traceEvent(TRACE_INFO, "Registering with supernode [%s][number of supernodes %d][attempts left %u]",

src/edge_utils_win32.c

@@ -26,8 +26,9 @@ static DWORD* tunReadThread (LPVOID lpArg) {
 
     struct tunread_arg *arg = (struct tunread_arg*)lpArg;
 
-  while(*arg->keep_running)
+    while(*arg->keep_running) {
         edge_read_from_tap(arg->eee);
+    }
 
     return((DWORD*)NULL);
 }

src/example_sn_embed.c

@@ -20,8 +20,8 @@
 
 static int keep_running;
 
-int main()
-{
+int main () {
+
         n2n_sn_t sss_node;
         int rc;
 
@@ -30,14 +30,12 @@ int main()
         sss_node.lport = 1234; // Main UDP listen port
 
         sss_node.sock = open_socket(sss_node.lport, 1);
-    if (-1 == sss_node.sock)
-    {
+        if(-1 == sss_node.sock) {
             exit(-2);
         }
 
         sss_node.mgmt_sock = open_socket(5645, 0); // Main UDP management port
-    if (-1 == sss_node.mgmt_sock)
-    {
+        if(-1 == sss_node.mgmt_sock) {
             exit(-2);
         }
 

src/network_traffic_filter.c

@@ -265,7 +265,6 @@ uint8_t march_rule_and_cache_key (filter_rule_key_t *rule_key, packet_address_pr
 /* for [-Wmissing-declarations] */
 filter_rule_t* get_filter_rule (filter_rule_t **rules, packet_address_proto_info_t *pkt_addr_info);
 
-
 filter_rule_t* get_filter_rule (filter_rule_t **rules, packet_address_proto_info_t *pkt_addr_info) {
 
     filter_rule_t *item = 0, *tmp = 0, *marched_rule = 0;

src/sn.c

@@ -67,11 +67,11 @@ static int load_allowed_sn_community (n2n_sn_t *sss, char *path) {
     while((line = fgets(buffer, sizeof(buffer), fd)) != NULL) {
         int len = strlen(line);
 
-    if(((len < 2) || line[0]) == '#') {
+        if((len < 2) || line[0] == '#') {
             continue;
         }
-    len--;
 
+        len--;
         while(len > 0) {
             if((line[len] == '\n') || (line[len] == '\r')) {
 	        line[len] = '\0';
@@ -186,6 +186,7 @@ static void help () {
     printf("-p <local port> ");
     printf("-c <path> ");
     printf("-l <supernode:port> ");
+  
 #if defined(N2N_HAVE_DAEMON)
     printf("[-f] ");
 #endif
@@ -282,6 +283,7 @@ static int setOption (int optkey, char *_optarg, n2n_sn_t *sss) {
             }
 
             if(sss->federation != NULL) {
+
                 skip_add = SN_ADD;
                 anchor_sn = add_sn_to_list_by_mac_or_sock(&(sss->federation->edges), socket, (n2n_mac_t*) null_mac, &skip_add);
 
@@ -293,6 +295,7 @@ static int setOption (int optkey, char *_optarg, n2n_sn_t *sss) {
                         memcpy(&(anchor_sn->mac_addr), null_mac, sizeof(n2n_mac_t));
                         anchor_sn->purgeable = SN_UNPURGEABLE;
                         anchor_sn->last_valid_time_stamp = initial_time_stamp();
+
                     }
                 }
             }
@@ -354,6 +357,7 @@ static int setOption (int optkey, char *_optarg, n2n_sn_t *sss) {
 #endif
 
         case 'F': { /* federation name */
+
             snprintf(sss->federation->community, N2N_COMMUNITY_SIZE - 1 ,"*%s", _optarg);
             sss->federation->community[N2N_COMMUNITY_SIZE - 1] = '\0';
 
@@ -464,6 +468,7 @@ static int loadFromFile (const char *path, n2n_sn_t *sss) {
     }
 
     while((line = fgets(buffer, sizeof(buffer), fd)) != NULL) {
+
         line = trim(line);
         value = NULL;
 
@@ -499,12 +504,8 @@ static int loadFromFile (const char *path, n2n_sn_t *sss) {
             }
         } else if(line[0] == '-') { /* short opt */
             key = &line[1], line_len--;
-      if(line_len > 1) {
-        key[1] = '\0';
-      }
-      if(line_len > 2) {
-        value = trim(&key[2]);
-      }
+            if(line_len > 1) key[1] = '\0';
+            if(line_len > 2) value = trim(&key[2]);
 
             // traceEvent(TRACE_NORMAL, "key: %c value: %s", key[0], value);
             setOption(key[0], value, sss);
@@ -528,7 +529,9 @@ static int add_federation_to_communities (n2n_sn_t *sss) {
 
     if(sss->federation != NULL) {
         HASH_ADD_STR(sss->communities, community, sss->federation);
+
         num_communities = HASH_COUNT(sss->communities);
+
         traceEvent(TRACE_INFO, "Added federation '%s' to the list of communities [total: %u]",
 	                 (char*)sss->federation->community, num_communities);
     }
@@ -605,6 +608,7 @@ BOOL WINAPI term_handler (DWORD sig)
 int main (int argc, char * const argv[]) {
 
     int rc;
+
 #ifndef WIN32
     struct passwd *pw = NULL;
 #endif
@@ -620,6 +624,7 @@ int main (int argc, char * const argv[]) {
     } else if(argc > 1) {
         rc = loadFromCLI(argc, argv, &sss_node);
     } else
+      
 #ifdef WIN32
         /* Load from current directory */
         rc = loadFromFile("supernode.conf", &sss_node);
@@ -631,6 +636,7 @@ int main (int argc, char * const argv[]) {
         help();
     }
 
+
 #if defined(N2N_HAVE_DAEMON)
     if(sss_node.daemon) {
         setUseSyslog(1); /* traceEvent output now goes to syslog. */
@@ -659,6 +665,7 @@ int main (int argc, char * const argv[]) {
     } else {
         traceEvent(TRACE_NORMAL, "supernode is listening on UDP %u (management)", sss_node.mport);
     }
+
 #ifndef WIN32
     if(((pw = getpwnam ("n2n")) != NULL) || ((pw = getpwnam ("nobody")) != NULL)) {
         sss_node.userid = sss_node.userid == 0 ? pw->pw_uid : 0;

src/sn_utils.c

@@ -879,7 +879,7 @@ static int process_udp (n2n_sn_t * sss,
                udp_size, intoa(ntohl(sender_sock->sin_addr.s_addr), buf, sizeof(buf)),
                ntohs(sender_sock->sin_port));
 
-  /* check if header is unenrypted. the following check is around 99.99962 percent reliable.
+    /* check if header is unencrypted. the following check is around 99.99962 percent reliable.
      * it heavily relies on the structure of packet's common part
      * changes to wire.c:encode/decode_common need to go together with this code */
     if(udp_size < 20) {