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Diffstat (limited to 'dbus/dbus-sysdeps-unix.c')
-rw-r--r--dbus/dbus-sysdeps-unix.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/dbus/dbus-sysdeps-unix.c b/dbus/dbus-sysdeps-unix.c
index 23296712..13375fe8 100644
--- a/dbus/dbus-sysdeps-unix.c
+++ b/dbus/dbus-sysdeps-unix.c
@@ -766,21 +766,24 @@ _dbus_connect_tcp_socket (const char *host,
* Creates a socket and binds it to the given path,
* then listens on the socket. The socket is
* set to be nonblocking.
+ * In case of port=0 a random free port is used and
+ * returned in the port parameter.
*
* @param host the host name to listen on
- * @param port the prot to listen on
+ * @param port the prot to listen on, if zero a free port will be used
* @param error return location for errors
* @returns the listening file descriptor or -1 on error
*/
int
_dbus_listen_tcp_socket (const char *host,
- dbus_uint32_t port,
+ dbus_uint32_t *port,
DBusError *error)
{
int listen_fd;
struct sockaddr_in addr;
struct hostent *he;
struct in_addr *haddr;
+ socklen_t len = (socklen_t) sizeof (struct sockaddr);
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
@@ -808,13 +811,13 @@ _dbus_listen_tcp_socket (const char *host,
_DBUS_ZERO (addr);
memcpy (&addr.sin_addr, haddr, sizeof (struct in_addr));
addr.sin_family = AF_INET;
- addr.sin_port = htons (port);
+ addr.sin_port = htons (*port);
if (bind (listen_fd, (struct sockaddr*) &addr, sizeof (struct sockaddr)))
{
dbus_set_error (error, _dbus_error_from_errno (errno),
"Failed to bind socket \"%s:%d\": %s",
- host, port, _dbus_strerror (errno));
+ host, *port, _dbus_strerror (errno));
_dbus_close (listen_fd, NULL);
return -1;
}
@@ -823,11 +826,14 @@ _dbus_listen_tcp_socket (const char *host,
{
dbus_set_error (error, _dbus_error_from_errno (errno),
"Failed to listen on socket \"%s:%d\": %s",
- host, port, _dbus_strerror (errno));
+ host, *port, _dbus_strerror (errno));
_dbus_close (listen_fd, NULL);
return -1;
}
+ getsockname(listen_fd, (struct sockaddr*) &addr, &len);
+ *port = (dbus_uint32_t) ntohs(addr.sin_port);
+
if (!_dbus_set_fd_nonblocking (listen_fd, error))
{
_dbus_close (listen_fd, NULL);