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| author | Richard W.M. Jones <rjones@redhat.com> | 2012-04-17 15:03:02 +0100 |
|---|---|---|
| committer | Richard W.M. Jones <rjones@redhat.com> | 2012-04-17 22:41:25 +0100 |
| commit | 7855959f7cd0d801685f99b2793ca58b50f802c2 (patch) | |
| tree | 580374a65433ece29fc8e85a61a68551e267c920 /sparsify | |
| parent | f0fb8f32b78ff0c405d2f74f9524deb3d55cce61 (diff) | |
| download | libguestfs-7855959f7cd0d801685f99b2793ca58b50f802c2.tar.gz libguestfs-7855959f7cd0d801685f99b2793ca58b50f802c2.tar.xz libguestfs-7855959f7cd0d801685f99b2793ca58b50f802c2.zip | |
resize, sparsify: Add a simple-minded check to stop indisk = outdisk.
(cherry picked from commit 84d450210b3ea01de3fe26b2cf1db2b492d77aec)
Diffstat (limited to 'sparsify')
| -rw-r--r-- | sparsify/sparsify.ml | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sparsify/sparsify.ml b/sparsify/sparsify.ml index cd231ee4..e9db23af 100644 --- a/sparsify/sparsify.ml +++ b/sparsify/sparsify.ml @@ -116,6 +116,12 @@ read the man page virt-sparsify(1). | _ -> error "usage is: %s [--options] indisk outdisk" prog in + (* Simple-minded check that the user isn't trying to use the + * same disk for input and output. + *) + if indisk = outdisk then + error "you cannot use the same disk image for input and output"; + (* The input disk must be an absolute path, so we can store the name * in the overlay disk. *) |