Remove unused '#include's.

[tinc] / src / fd_device.c

diff --git a/src/fd_device.c b/src/fd_device.c
index 8429556..205b628 100644 (file)
--- a/src/fd_device.c
+++ b/src/fd_device.c
@@ -1,7 +1,7 @@
 /*
     fd_device.c -- Interaction with Android tun fd
     Copyright (C)   2001-2005   Ivo Timmermans,
-                    2001-2016   Guus Sliepen <guus@tinc-vpn.org>
+                    2001-2021   Guus Sliepen <guus@tinc-vpn.org>
                     2009        Grzegorz Dymarek <gregd72002@googlemail.com>
                     2016-2020   Pacien TRAN-GIRARD <pacien@pacien.net>
 
@@ -20,16 +20,17 @@
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
+#include "system.h"
+
+#ifdef HAVE_SYS_UN_H
 #include <sys/un.h>
 
-#include "system.h"
 #include "conf.h"
 #include "device.h"
 #include "ethernet.h"
 #include "logger.h"
 #include "net.h"
 #include "route.h"
-#include "utils.h"
 
 struct unix_socket_addr {
        size_t size;
@@ -55,25 +56,35 @@ static int read_fd(int socket) {
                logger(DEBUG_ALWAYS, LOG_ERR, "Could not read from unix socket (error %d)!", ret);
                return -1;
        }
+
+#ifdef IP_RECVERR
+
        if(msg.msg_flags & (MSG_CTRUNC | MSG_OOB | MSG_ERRQUEUE)) {
+#else
+
+       if(msg.msg_flags & (MSG_CTRUNC | MSG_OOB)) {
+#endif
                logger(DEBUG_ALWAYS, LOG_ERR, "Error while receiving message (flags %d)!", msg.msg_flags);
                return -1;
        }
 
        cmsgptr = CMSG_FIRSTHDR(&msg);
+
        if(cmsgptr->cmsg_level != SOL_SOCKET) {
                logger(DEBUG_ALWAYS, LOG_ERR, "Wrong CMSG level: %d, expected %d!",
-                       cmsgptr->cmsg_level, SOL_SOCKET);
+                      cmsgptr->cmsg_level, SOL_SOCKET);
                return -1;
        }
+
        if(cmsgptr->cmsg_type != SCM_RIGHTS) {
                logger(DEBUG_ALWAYS, LOG_ERR, "Wrong CMSG type: %d, expected %d!",
-                       cmsgptr->cmsg_type, SCM_RIGHTS);
+                      cmsgptr->cmsg_type, SCM_RIGHTS);
                return -1;
        }
+
        if(cmsgptr->cmsg_len != CMSG_LEN(sizeof(device_fd))) {
                logger(DEBUG_ALWAYS, LOG_ERR, "Wrong CMSG data length: %lu, expected %lu!",
-                       cmsgptr->cmsg_len, CMSG_LEN(sizeof(device_fd)));
+                      (unsigned long)cmsgptr->cmsg_len, (unsigned long)CMSG_LEN(sizeof(device_fd)));
                return -1;
        }
 
@@ -104,15 +115,18 @@ end:
 }
 
 static struct unix_socket_addr parse_socket_addr(const char *path) {
-       struct sockaddr_un socket_addr;
+       struct sockaddr_un socket_addr = {
+               .sun_family = AF_UNIX,
+       };
        size_t path_length;
 
        if(strlen(path) >= sizeof(socket_addr.sun_path)) {
                logger(DEBUG_ALWAYS, LOG_ERR, "Unix socket path too long!");
-               return (struct unix_socket_addr) {0};
+               return (struct unix_socket_addr) {
+                       0
+               };
        }
 
-       socket_addr.sun_family = AF_UNIX;
        strncpy(socket_addr.sun_path, path, sizeof(socket_addr.sun_path));
 
        if(path[0] == '@') {
@@ -160,6 +174,10 @@ static bool setup_device(void) {
 static void close_device(void) {
        close(device_fd);
        device_fd = -1;
+       free(iface);
+       iface = NULL;
+       free(device);
+       device = NULL;
 }
 
 static inline uint16_t get_ip_ethertype(vpn_packet_t *packet) {
@@ -222,3 +240,4 @@ const devops_t fd_devops = {
        .read = read_packet,
        .write = write_packet,
 };
+#endif