static

[tinc] / src / freebsd / device.c

diff --git a/src/freebsd/device.c b/src/freebsd/device.c
index b85923b..2d9a0eb 100644 (file)
--- a/src/freebsd/device.c
+++ b/src/freebsd/device.c
@@ -1,7 +1,7 @@
 /*
     device.c -- Interaction with FreeBSD tap device
-    Copyright (C) 2001-2003 Ivo Timmermans <ivo@o2w.nl>,
-                  2001-2003 Guus Sliepen <guus@sliepen.eu.org>
+    Copyright (C) 2001-2004 Ivo Timmermans <ivo@tinc-vpn.org>,
+                  2001-2004 Guus Sliepen <guus@tinc-vpn.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -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: device.c,v 1.1.2.12 2003/07/18 13:41:36 guus Exp $
+    $Id$
 */
 
 #include "system.h"
@@ -30,14 +30,13 @@
 #define DEFAULT_DEVICE "/dev/tap0"
 
 int device_fd = -1;
-int device_type;
 char *device;
 char *iface;
 char *device_info;
-int device_total_in = 0;
-int device_total_out = 0;
+static int device_total_in = 0;
+static int device_total_out = 0;
 
-int setup_device(void)
+bool setup_device(void)
 {
        cp();
 
@@ -49,14 +48,14 @@ int setup_device(void)
 
        if((device_fd = open(device, O_RDWR | O_NONBLOCK)) < 0) {
                logger(LOG_ERR, _("Could not open %s: %s"), device, strerror(errno));
-               return -1;
+               return false;
        }
 
        device_info = _("FreeBSD tap device");
 
        logger(LOG_INFO, _("%s is a %s"), device, device_info);
 
-       return 0;
+       return true;
 }
 
 void close_device(void)
@@ -66,7 +65,7 @@ void close_device(void)
        close(device_fd);
 }
 
-int read_packet(vpn_packet_t *packet)
+bool read_packet(vpn_packet_t *packet)
 {
        int lenin;
 
@@ -75,7 +74,7 @@ int read_packet(vpn_packet_t *packet)
        if((lenin = read(device_fd, packet->data, MTU)) <= 0) {
                logger(LOG_ERR, _("Error while reading from %s %s: %s"), device_info,
                           device, strerror(errno));
-               return -1;
+               return false;
        }
 
        packet->len = lenin;
@@ -85,10 +84,10 @@ int read_packet(vpn_packet_t *packet)
        ifdebug(TRAFFIC) logger(LOG_DEBUG, _("Read packet of %d bytes from %s"),
                           packet->len, device_info);
 
-       return 0;
+       return true;
 }
 
-int write_packet(vpn_packet_t *packet)
+bool write_packet(vpn_packet_t *packet)
 {
        cp();
 
@@ -98,10 +97,12 @@ int write_packet(vpn_packet_t *packet)
        if(write(device_fd, packet->data, packet->len) < 0) {
                logger(LOG_ERR, _("Error while writing to %s %s: %s"), device_info,
                           device, strerror(errno));
-               return -1;
+               return false;
        }
 
        device_total_out += packet->len;
+
+       return true;
 }
 
 void dump_device_stats(void)