add access operation
diff --git a/lib/Makefile.am b/lib/Makefile.am
index 2d81fb0..8d340f9 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -14,7 +14,7 @@
 	helper.c		\
 	mount.c
 
-libfuse_la_LDFLAGS = -lpthread -version-number 2:4:1 \
+libfuse_la_LDFLAGS = -lpthread -version-number 2:5:0 \
 	-Wl,--version-script,fuse_versionscript
 
 EXTRA_DIST = fuse_versionscript
diff --git a/lib/fuse.c b/lib/fuse.c
index b0cf553..6b3b6ae 100644
--- a/lib/fuse.c
+++ b/lib/fuse.c
@@ -736,6 +736,29 @@
         reply_err(req, err);
 }
 
+static void fuse_access(fuse_req_t req, fuse_ino_t ino, int mask)
+{
+    struct fuse *f = req_fuse_prepare(req);
+    char *path;
+    int err;
+
+    err = -ENOENT;
+    pthread_rwlock_rdlock(&f->tree_lock);
+    path = get_path(f, ino);
+    if (path != NULL) {
+        if (f->flags & FUSE_DEBUG) {
+            printf("ACCESS %s 0%o\n", path, mask);
+            fflush(stdout);
+        }
+        err = -ENOSYS;
+        if (f->op.access)
+            err = f->op.access(path, mask);
+        free(path);
+    }
+    pthread_rwlock_unlock(&f->tree_lock);
+    reply_err(req, err);
+}
+
 static void fuse_readlink(fuse_req_t req, fuse_ino_t ino)
 {
     struct fuse *f = req_fuse_prepare(req);
@@ -1622,6 +1645,7 @@
     .forget = fuse_forget,
     .getattr = fuse_getattr,
     .setattr = fuse_setattr,
+    .access = fuse_access,
     .readlink = fuse_readlink,
     .mknod = fuse_mknod,
     .mkdir = fuse_mkdir,
diff --git a/lib/fuse_lowlevel.c b/lib/fuse_lowlevel.c
index 95882ed..22dc41d 100644
--- a/lib/fuse_lowlevel.c
+++ b/lib/fuse_lowlevel.c
@@ -69,6 +69,7 @@
     case FUSE_READDIR:		return "READDIR";
     case FUSE_RELEASEDIR:	return "RELEASEDIR";
     case FUSE_FSYNCDIR:		return "FSYNCDIR";
+    case FUSE_ACCESS:		return "ACCESS";
     default: 			return "???";
     }
 }
@@ -361,6 +362,15 @@
         fuse_reply_err(req, ENOSYS);
 }
 
+static void do_access(fuse_req_t req, fuse_ino_t nodeid,
+                      struct fuse_access_in *arg)
+{
+    if (req->f->op.access)
+        req->f->op.access(req, nodeid, arg->mask);
+    else
+        fuse_reply_err(req, ENOSYS);
+}
+
 static void do_readlink(fuse_req_t req, fuse_ino_t nodeid)
 {
     if (req->f->op.readlink)
@@ -811,6 +821,10 @@
         do_fsyncdir(req, in->nodeid, (struct fuse_fsync_in *) inarg);
         break;
 
+    case FUSE_ACCESS:
+        do_access(req, in->nodeid, (struct fuse_access_in *) inarg);
+        break;
+
     default:
         fuse_reply_err(req, ENOSYS);
     }