commit 76e1a5ddc9ef9730205b2da2ed6b654d8fbaef40
Author: Christos Zoulas <christos@zoulas.com>
Date:   Sat Jan 17 12:27:56 2015 -0500

    uid_t might be a different size than unsigned int, so XXX: truncate.

diff --git a/hlfsd/stubs.c b/hlfsd/stubs.c
index b26e5f4..70876b7 100644
--- a/hlfsd/stubs.c
+++ b/hlfsd/stubs.c
@@ -60,6 +60,21 @@ static int started;
 static am_nfs_fh slink;
 static am_nfs_fh un_fhandle;
 
+static void
+xgetuid(uid_t *uid, const void *p)
+{
+  u_int xuid;
+  (void)memcpy(&xuid, p, sizeof(xuid));
+  *uid = xuid;
+}
+
+static void
+xputuid(void *p, uid_t uid)
+{
+  u_int xuid = uid;
+  (void)memcpy(p, &xuid, sizeof(xuid));
+}
+
 /*
  * GLOBALS:
  */
@@ -160,7 +175,7 @@ nfsproc_getattr_2_svc(am_nfs_fh *argp, struct svc_req *rqstp)
     if (gid != hlfs_gid) {
       res.ns_status = NFSERR_STALE;
     } else {
-      (void)memcpy(&uid, argp->fh_data, sizeof(uid));
+      xgetuid(&uid, argp->fh_data);
       if (plt_search(uid) != (uid2home_t *) NULL) {
 	res.ns_status = NFS_OK;
 	un_fattr.na_fileid = uid;
@@ -278,7 +293,7 @@ nfsproc_lookup_2_svc(nfsdiropargs *argp, struct svc_req *rqstp)
       un_fattr.na_fileid = untab[idx].uid;
       res.dr_u.dr_drok_u.drok_attributes = un_fattr;
       memset(&un_fhandle, 0, sizeof(un_fhandle));
-      memcpy(un_fhandle.fh_data, &untab[idx].uid, sizeof(untab[idx].uid));
+      xputuid(un_fhandle.fh_data, untab[idx].uid);
       xstrlcpy((char *) &un_fhandle.fh_data[sizeof(int)],
 	       untab[idx].username,
 	       sizeof(am_nfs_fh) - sizeof(int));
@@ -333,7 +348,7 @@ nfsproc_readlink_2_svc(am_nfs_fh *argp, struct svc_req *rqstp)
     }
 
     if (groupid == hlfs_gid) {
-      memcpy(&userid, argp->fh_data, sizeof(userid));
+      xgetuid(&userid, argp->fh_data);
       username = (char *) &argp->fh_data[sizeof(int)];
       if (!(res.rlr_u.rlr_data_u = mailbox(userid, username)))
 	return (nfsreadlinkres *) NULL;