2005-07-13 Ulrich Drepper <drepper@redhat.com>

	[BZ #1080]
	* nscd/connections.c (send_ro_fd): Make sure BUF is aligned correctly.
	* nscd/nscd_helper.c (wait_on_socket): New function.
	(get_mapping): Use wait_on_socket instead of poll.  The former handles
	EINTR of poll correctly.
	(__nscd_open_socket): Likewise.
	(get_mapping): Make sure BUF is aligned correctly.
	(get_mapping): Use munmap on correct pointer.

diff --git a/nscd/connections.c b/nscd/connections.c
index d4ce2d345e51a853f3f453f1b3b5db4ac058c451..1a7dc77694d162caaef5e548afb1a9af48b75126 100644 (file)
--- a/nscd/connections.c
+++ b/nscd/connections.c
@@ -604,9 +604,14 @@ send_ro_fd (struct database_dyn *db, char *key, int fd)
   iov[0].iov_len = strlen (key) + 1;
 
   /* Prepare the control message to transfer the descriptor.  */
-  char buf[CMSG_SPACE (sizeof (int))];
+  union
+  {
+    struct cmsghdr hdr;
+    char bytes[CMSG_SPACE (sizeof (int))];
+  } buf;
   struct msghdr msg = { .msg_iov = iov, .msg_iovlen = 1,
-                       .msg_control = buf, .msg_controllen = sizeof (buf) };
+                       .msg_control = buf.bytes,
+                       .msg_controllen = sizeof (buf) };
   struct cmsghdr *cmsg = CMSG_FIRSTHDR (&msg);
 
   cmsg->cmsg_level = SOL_SOCKET;