New API: rename: Rename file within the same filesystem (RHBZ#895910).

daemon/Makefile.am

@@ -158,6 +158,7 @@ guestfsd_SOURCES = \
 	proto.c \
 	readdir.c \
 	realpath.c \
+	rename.c \
 	rsync.c \
 	scrub.c \
 	selinux.c \

daemon/rename.c

@@ -0,0 +1,41 @@
+/* libguestfs - the guestfsd daemon
+ * Copyright (C) 2013 Red Hat Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include "daemon.h"
+#include "actions.h"
+
+int
+do_rename (const char *oldpath, const char *newpath)
+{
+  int r;
+
+  CHROOT_IN;
+  r = rename (oldpath, newpath);
+  CHROOT_OUT;
+
+  if (r == -1) {
+    reply_with_perror ("rename: %s: %s", oldpath, newpath);
+    return -1;
+  }
+
+  return 0;
+}

generator/actions.ml

@@ -4617,7 +4617,9 @@ recursively using the C<cp -a> command." };
     shortdesc = "move a file";
     longdesc = "\
 This moves a file from C<src> to C<dest> where C<dest> is
-either a destination filename or destination directory." };
+either a destination filename or destination directory.
+
+See also: C<guestfs_rename>." };
 
   { defaults with
     name = "drop_caches";
@@ -10679,6 +10681,23 @@ Return the type GUID of numbered GPT partition C<partnum>. For MBR partitions,
 return an appropriate GUID corresponding to the MBR type. Behaviour is undefined
 for other partition types." };
 
+  { defaults with
+    name = "rename";
+    style = RErr, [Pathname "oldpath"; Pathname "newpath"], [];
+    proc_nr = Some 394;
+    tests = [
+      InitScratchFS, Always, TestOutputFalse (
+        [["mkdir"; "/rename"];
+         ["write"; "/rename/old"; "file content"];
+         ["rename"; "/rename/old"; "/rename/new"];
+         ["is_file"; "/rename/old"]])
+    ];
+    shortdesc = "rename a file on the same filesystem";
+    longdesc = "\
+Rename a file to a new place on the same filesystem.  This is
+the same as the Linux L<rename(2)> system call.  In most cases
+you are better to use C<guestfs_mv> instead." };
+
 ]
 
 (* Non-API meta-commands available only in guestfish.

po/POTFILES

@@ -73,6 +73,7 @@ daemon/pingdaemon.c
 daemon/proto.c
 daemon/readdir.c
 daemon/realpath.c
+daemon/rename.c
 daemon/rsync.c
 daemon/scrub.c
 daemon/selinux.c

src/MAX_PROC_NR

@@ -1 +1 @@
-393
+394