Fix some more obscure compiler warnings

svn:r3758

src/common/compat.c

@@ -362,7 +362,8 @@ tor_socketpair(int family, int type, int protocol, int fd[2])
 /** Get the maximum allowed number of file descriptors. (Some systems
  * have a low soft limit.) Make sure we set it to at least
  * <b>*limit</b>. Return a new limit if we can, or -1 if we fail. */
-int set_max_file_descriptors(int limit, int cap) {
+int
+set_max_file_descriptors(unsigned long limit, unsigned long cap) {
 #ifndef HAVE_GETRLIMIT
   log_fn(LOG_INFO,"This platform is missing getrlimit(). Proceeding.");
   if (limit > cap) {
@@ -371,7 +372,9 @@ int set_max_file_descriptors(int limit, int cap) {
   }
 #else
   struct rlimit rlim;
-  int most;
+  unsigned long most;
+  tor_assert(limit > 0);
+  tor_assert(cap > 0);
 
   if (getrlimit(RLIMIT_NOFILE, &rlim) != 0) {
     log_fn(LOG_WARN, "Could not get maximum number of file descriptors: %s",
@@ -379,13 +382,13 @@ int set_max_file_descriptors(int limit, int cap) {
     return -1;
   }
   if (rlim.rlim_max < limit) {
-    log_fn(LOG_WARN,"We need %d file descriptors available, and we're limited to %lu. Please change your ulimit -n.", limit, (unsigned long int)rlim.rlim_max);
+    log_fn(LOG_WARN,"We need %lu file descriptors available, and we're limited to %lu. Please change your ulimit -n.", limit, (unsigned long)rlim.rlim_max);
     return -1;
   }
-  most = ((rlim.rlim_max > cap) ? cap : rlim.rlim_max);
+  most = (rlim.rlim_max > cap) ? cap : (unsigned) rlim.rlim_max;
   if (most > rlim.rlim_cur) {
-    log_fn(LOG_INFO,"Raising max file descriptors from %lu to %d.",
-           (unsigned long int)rlim.rlim_cur, most);
+    log_fn(LOG_INFO,"Raising max file descriptors from %lu to %lu.",
+           (unsigned long)rlim.rlim_cur, most);
   }
   rlim.rlim_cur = most;
   if (setrlimit(RLIMIT_NOFILE, &rlim) != 0) {

src/common/compat.h

@@ -197,7 +197,7 @@ void set_uint16(char *cp, uint16_t v);
 void set_uint32(char *cp, uint32_t v);
 #endif
 
-int set_max_file_descriptors(int limit, int cap);
+int set_max_file_descriptors(unsigned long limit, unsigned long cap);
 int switch_id(char *user, char *group);
 #ifdef HAVE_PWD_H
 char *get_user_homedir(const char *username);

src/or/config.c

@@ -317,7 +317,7 @@ options_act(void) {
   add_callback_log(LOG_NOTICE, LOG_ERR, control_event_logmsg);
 
   options->_ConnLimit =
-    set_max_file_descriptors(options->ConnLimit, MAXCONNECTIONS);
+    set_max_file_descriptors((unsigned)options->ConnLimit, MAXCONNECTIONS);
   if (options->_ConnLimit < 0)
     return -1;
 
@@ -1183,7 +1183,7 @@ config_dump_options(or_options_t *options, int minimal)
 }
 
 static int
-validate_ports_csv(smartlist_t *sl, char *name) {
+validate_ports_csv(smartlist_t *sl, const char *name) {
   int i;
   int result = 0;
   tor_assert(name);
@@ -1319,6 +1319,12 @@ options_validate(or_options_t *options)
     result = -1;
   }
 
+  if (options->ConnLimit <= 0) {
+    log(LOG_WARN, "ConnLimit must be greater than 0, but was set to %d",
+        options->ConnLimit);
+    result = -1;
+  }
+
   if (options->_AccountingMaxKB) {
     log(LOG_WARN, "AccountingMaxKB is deprecated.  Say 'AccountingMax %d KB' instead.", options->_AccountingMaxKB);
     options->AccountingMax = U64_LITERAL(1024)*options->_AccountingMaxKB;

src/or/directory.c

@@ -28,10 +28,6 @@ const char directory_c_id[] = "$Id$";
  *   connection_finished_connecting() in connection.c
  */
 
-void
-directory_initiate_command_router(routerinfo_t *router, uint8_t purpose,
-                                  int private_connection, const char *resource,
-                                  const char *payload, size_t payload_len);
 static void
 directory_initiate_command_trusted_dir(trusted_dir_server_t *dirserv,
                                       uint8_t purpose, int private_connection,
@@ -50,6 +46,7 @@ directory_send_command(connection_t *conn, const char *platform,
                        const char *payload, size_t payload_len);
 static int directory_handle_command(connection_t *conn);
 static int body_is_plausible(const char *body, size_t body_len, int purpose);
+static int purpose_is_private(uint8_t purpose);
 
 /********* START VARIABLES **********/
 
@@ -112,7 +109,8 @@ int dir_policy_permits_address(uint32_t addr)
   return 0;
 }
 
-int purpose_is_private(uint8_t purpose) {
+static int
+purpose_is_private(uint8_t purpose) {
   if (purpose == DIR_PURPOSE_FETCH_DIR ||
       purpose == DIR_PURPOSE_UPLOAD_DIR ||
       purpose == DIR_PURPOSE_FETCH_RUNNING_LIST)

src/or/main.c

@@ -40,6 +40,7 @@ static void conn_write_callback(int fd, short event, void *_conn);
 static void signal_callback(int fd, short events, void *arg);
 static void second_elapsed_callback(int fd, short event, void *args);
 static int conn_close_if_marked(int i);
+void tor_free_all(void);
 
 /********* START VARIABLES **********/