[PATCH v36 3/8] server: Introduce error when attempting to create a SOCK_DGRAM AF_UNIX socket.

[Ally Sommers]

From: Ally Sommers

---
 server/fd.c   | 2 +-
 server/sock.c | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/server/fd.c b/server/fd.c
index 582249d368c..4734b1a551e 100644
--- a/server/fd.c
+++ b/server/fd.c
@@ -2015,9 +2015,9 @@ struct fd *open_fd( struct fd *root, const char *name, struct unicode_str nt_nam

fd->nt_name = dup_nt_name( root, nt_name, &fd->nt_namelen );
     fd->unix_name = NULL;
-    /* st was set from the file name if the file could not be opened */
     if (fd->unix_fd != -1)
         fstat( fd->unix_fd, &st );
+    /* st was set from the file name in case of sockets */
     *mode = st.st_mode;

/* only bother with an inode for normal files and directories */
diff --git a/server/sock.c b/server/sock.c
index c3727b51d65..9c4aec16d84 100644
--- a/server/sock.c
+++ b/server/sock.c
@@ -1955,6 +1955,12 @@ static int init_socket( struct sock *sock, int family, int type, int protocol )
         return -1;
     }

+    if (unix_family == AF_UNIX && unix_type == SOCK_DGRAM)
+    {
+        set_win32_error(WSAEAFNOSUPPORT);
+        return -1;
+    }
+
     sockfd = socket( unix_family, unix_type, unix_protocol );

#ifdef linux