Sprinkling the source with static and attributes.
[tinc] / src / protocol.c
index b499c48..a648547 100644 (file)
@@ -17,7 +17,7 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id: protocol.c,v 1.28.4.137 2002/09/09 22:32:49 guus Exp $
+    $Id: protocol.c,v 1.28.4.139 2003/07/06 23:16:28 guus Exp $
 */
 
 #include "config.h"
@@ -26,7 +26,6 @@
 
 #include <stdlib.h>
 #include <string.h>
-#include <syslog.h>
 #include <stdio.h>
 #include <stdarg.h>
 #include <errno.h>
 #include "protocol.h"
 #include "meta.h"
 #include "connection.h"
+#include "logger.h"
 
 #include "system.h"
 
-avl_tree_t *past_request_tree;
+/* Jumptable for the request handlers */
+
+static int (*request_handlers[])(connection_t *) = {
+               id_h, metakey_h, challenge_h, chal_reply_h, ack_h,
+               status_h, error_h, termreq_h,
+               ping_h, pong_h,
+               add_subnet_h, del_subnet_h,
+               add_edge_h, del_edge_h,
+               key_changed_h, req_key_h, ans_key_h, tcppacket_h,
+};
+
+/* Request names */
+
+static char (*request_name[]) = {
+               "ID", "METAKEY", "CHALLENGE", "CHAL_REPLY", "ACK",
+               "STATUS", "ERROR", "TERMREQ",
+               "PING", "PONG",
+               "ADD_SUBNET", "DEL_SUBNET",
+               "ADD_EDGE", "DEL_EDGE", "KEY_CHANGED", "REQ_KEY", "ANS_KEY", "PACKET",
+};
+
+static avl_tree_t *past_request_tree;
 
 int check_id(char *id)
 {
@@ -74,18 +95,18 @@ int send_request(connection_t *c, const char *format, ...)
        va_end(args);
 
        if(len < 0 || len > MAXBUFSIZE - 1) {
-               syslog(LOG_ERR, _("Output buffer overflow while sending request to %s (%s)"),
+               logger(DEBUG_ALWAYS, LOG_ERR, _("Output buffer overflow while sending request to %s (%s)"),
                           c->name, c->hostname);
                return -1;
        }
 
-       if(debug_lvl >= DEBUG_PROTOCOL) {
+       if(debug_level >= DEBUG_PROTOCOL) {
                sscanf(buffer, "%d", &request);
-               if(debug_lvl >= DEBUG_META)
-                       syslog(LOG_DEBUG, _("Sending %s to %s (%s): %s"),
+               if(debug_level >= DEBUG_META)
+                       logger(DEBUG_ALWAYS, LOG_DEBUG, _("Sending %s to %s (%s): %s"),
                                   request_name[request], c->name, c->hostname, buffer);
                else
-                       syslog(LOG_DEBUG, _("Sending %s to %s (%s)"), request_name[request],
+                       logger(DEBUG_ALWAYS, LOG_DEBUG, _("Sending %s to %s (%s)"), request_name[request],
                                   c->name, c->hostname);
        }
 
@@ -104,14 +125,14 @@ int forward_request(connection_t *from)
 
        cp();
 
-       if(debug_lvl >= DEBUG_PROTOCOL) {
+       if(debug_level >= DEBUG_PROTOCOL) {
                sscanf(from->buffer, "%d", &request);
-               if(debug_lvl >= DEBUG_META)
-                       syslog(LOG_DEBUG, _("Forwarding %s from %s (%s): %s"),
+               if(debug_level >= DEBUG_META)
+                       logger(DEBUG_ALWAYS, LOG_DEBUG, _("Forwarding %s from %s (%s): %s"),
                                   request_name[request], from->name, from->hostname,
                                   from->buffer);
                else
-                       syslog(LOG_DEBUG, _("Forwarding %s from %s (%s)"),
+                       logger(DEBUG_ALWAYS, LOG_DEBUG, _("Forwarding %s from %s (%s)"),
                                   request_name[request], from->name, from->hostname);
        }
 
@@ -128,28 +149,28 @@ int receive_request(connection_t *c)
 
        if(sscanf(c->buffer, "%d", &request) == 1) {
                if((request < 0) || (request >= LAST) || !request_handlers[request]) {
-                       if(debug_lvl >= DEBUG_META)
-                               syslog(LOG_DEBUG, _("Unknown request from %s (%s): %s"),
+                       if(debug_level >= DEBUG_META)
+                               logger(DEBUG_ALWAYS, LOG_DEBUG, _("Unknown request from %s (%s): %s"),
                                           c->name, c->hostname, c->buffer);
                        else
-                               syslog(LOG_ERR, _("Unknown request from %s (%s)"),
+                               logger(DEBUG_ALWAYS, LOG_ERR, _("Unknown request from %s (%s)"),
                                           c->name, c->hostname);
 
                        return -1;
                } else {
-                       if(debug_lvl >= DEBUG_PROTOCOL) {
-                               if(debug_lvl >= DEBUG_META)
-                                       syslog(LOG_DEBUG, _("Got %s from %s (%s): %s"),
+                       if(debug_level >= DEBUG_PROTOCOL) {
+                               if(debug_level >= DEBUG_META)
+                                       logger(DEBUG_ALWAYS, LOG_DEBUG, _("Got %s from %s (%s): %s"),
                                                   request_name[request], c->name, c->hostname,
                                                   c->buffer);
                                else
-                                       syslog(LOG_DEBUG, _("Got %s from %s (%s)"),
+                                       logger(DEBUG_ALWAYS, LOG_DEBUG, _("Got %s from %s (%s)"),
                                                   request_name[request], c->name, c->hostname);
                        }
                }
 
                if((c->allow_request != ALL) && (c->allow_request != request)) {
-                       syslog(LOG_ERR, _("Unauthorized request from %s (%s)"), c->name,
+                       logger(DEBUG_ALWAYS, LOG_ERR, _("Unauthorized request from %s (%s)"), c->name,
                                   c->hostname);
                        return -1;
                }
@@ -157,12 +178,12 @@ int receive_request(connection_t *c)
                if(request_handlers[request] (c))
                        /* Something went wrong. Probably scriptkiddies. Terminate. */
                {
-                       syslog(LOG_ERR, _("Error while processing %s from %s (%s)"),
+                       logger(DEBUG_ALWAYS, LOG_ERR, _("Error while processing %s from %s (%s)"),
                                   request_name[request], c->name, c->hostname);
                        return -1;
                }
        } else {
-               syslog(LOG_ERR, _("Bogus data received from %s (%s)"),
+               logger(DEBUG_ALWAYS, LOG_ERR, _("Bogus data received from %s (%s)"),
                           c->name, c->hostname);
                return -1;
        }
@@ -170,12 +191,12 @@ int receive_request(connection_t *c)
        return 0;
 }
 
-int past_request_compare(past_request_t *a, past_request_t *b)
+static int past_request_compare(past_request_t *a, past_request_t *b)
 {
        return strcmp(a->request, b->request);
 }
 
-void free_past_request(past_request_t *r)
+static void free_past_request(past_request_t *r)
 {
        cp();
 
@@ -208,8 +229,7 @@ int seen_request(char *request)
        p.request = request;
 
        if(avl_search(past_request_tree, &p)) {
-               if(debug_lvl >= DEBUG_SCARY_THINGS)
-                       syslog(LOG_DEBUG, _("Already seen request"));
+               logger(DEBUG_SCARY_THINGS, LOG_DEBUG, _("Already seen request"));
                return 1;
        } else {
                new = (past_request_t *) xmalloc(sizeof(*new));
@@ -238,28 +258,7 @@ void age_past_requests(void)
                        left++;
        }
 
-       if(debug_lvl >= DEBUG_SCARY_THINGS && left + deleted)
-               syslog(LOG_DEBUG, _("Aging past requests: deleted %d, left %d\n"),
+       if(left || deleted)
+               logger(DEBUG_SCARY_THINGS, LOG_DEBUG, _("Aging past requests: deleted %d, left %d\n"),
                           deleted, left);
 }
-
-/* Jumptable for the request handlers */
-
-int (*request_handlers[])(connection_t *) = {
-               id_h, metakey_h, challenge_h, chal_reply_h, ack_h,
-               status_h, error_h, termreq_h,
-               ping_h, pong_h,
-               add_subnet_h, del_subnet_h,
-               add_edge_h, del_edge_h,
-               key_changed_h, req_key_h, ans_key_h, tcppacket_h,
-};
-
-/* Request names */
-
-char (*request_name[]) = {
-               "ID", "METAKEY", "CHALLENGE", "CHAL_REPLY", "ACK",
-               "STATUS", "ERROR", "TERMREQ",
-               "PING", "PONG",
-               "ADD_SUBNET", "DEL_SUBNET",
-               "ADD_EDGE", "DEL_EDGE", "KEY_CHANGED", "REQ_KEY", "ANS_KEY", "PACKET",
-};