socket: make various socket/pipe options configurable

[elogind.git] / src / socket-util.c

diff --git a/src/socket-util.c b/src/socket-util.c
index 4a1b3d8b515536e97fd0b186ceeed5d8ab276a32..344d6b98a44086c261e26b9bcbd8c314b5ce6f04 100644 (file)
--- a/src/socket-util.c
+++ b/src/socket-util.c
@@ -305,6 +305,7 @@ int socket_address_listen(
                 int backlog,
                 SocketAddressBindIPv6Only only,
                 const char *bind_to_device,
+                bool free_bind,
                 mode_t directory_mode,
                 mode_t socket_mode,
                 int *ret) {
@@ -330,6 +331,12 @@ int socket_address_listen(
                 if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, bind_to_device, strlen(bind_to_device)+1) < 0)
                         goto fail;
 
+        if (free_bind) {
+                one = 1;
+                if (setsockopt(fd, IPPROTO_IP, IP_FREEBIND, &one, sizeof(one)) < 0)
+                        log_warning("IP_FREEBIND failed: %m");
+        }
+
         one = 1;
         if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)) < 0)
                 goto fail;