g13: Implement --umount for dm-crypt.

* g13/g13.c (main): Implement command --umount.
* g13/mount.c (g13_umount_container): use the syshelper if needed.
* g13/backend.c (be_umount_container): New.
* g13/be-dmcrypt.c (be_dmcrypt_umount_container): New.
* g13/call-syshelp.c (call_syshelp_run_umount): New.
* g13/sh-cmd.c (cmd_umount): New.
(register_commands): Register UMOUNT.
* g13/sh-dmcrypt.c (sh_dmcrypt_umount_container): New.

Signed-off-by: Werner Koch <[email protected]>

1 files changed, 4 insertions, 3 deletions

diff --git a/g13/g13.c b/g13/g13.c
index 799fd6651..7744855c2 100644
--- a/g13/g13.c
+++ b/g13/g13.c
@@ -793,9 +793,10 @@ main ( int argc, char **argv)
       {
         if (argc != 1)
           wrong_args ("--umount filename");
-        err = GPG_ERR_NOT_IMPLEMENTED;
-        log_error ("error unmounting container '%s': %s <%s>\n",
-                   *argv, gpg_strerror (err), gpg_strsource (err));
+        err = g13_umount_container (&ctrl, argv[0], NULL);
+        if (err)
+          log_error ("error unmounting container '%s': %s <%s>\n",
+                     *argv, gpg_strerror (err), gpg_strsource (err));
       }
       break;