From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53208) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1erpqp-0001za-83 for qemu-devel@nongnu.org; Fri, 02 Mar 2018 13:56:16 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1erpqo-0003Pd-Fx for qemu-devel@nongnu.org; Fri, 02 Mar 2018 13:56:15 -0500 From: Kevin Wolf Date: Fri, 2 Mar 2018 19:54:44 +0100 Message-Id: <20180302185448.6314-34-kwolf@redhat.com> In-Reply-To: <20180302185448.6314-1-kwolf@redhat.com> References: <20180302185448.6314-1-kwolf@redhat.com> Subject: [Qemu-devel] [PULL 33/37] qemu-img: Make resize error message more general List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-block@nongnu.org Cc: kwolf@redhat.com, qemu-devel@nongnu.org From: Max Reitz The issue: $ qemu-img resize -f qcow2 foo.qcow2 qemu-img: Expecting one image file name Try 'qemu-img --help' for more information So we gave an image file name, but we omitted the length. qemu-img thinks the last argument is always the size and removes it immediately from argv (by decrementing argc), and tries to verify that it is a valid size only at a later point. So we do not actually know whether that last argument we called "size" is indeed a size or whether the user instead forgot to specify that size but did give a file name. Therefore, the error message should be more general. Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1523458 Signed-off-by: Max Reitz Message-id: 20180205162745.23650-1-mreitz@redhat.com Reviewed-by: John Snow Reviewed-by: Eric Blake Signed-off-by: Max Reitz --- qemu-img.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/qemu-img.c b/qemu-img.c index 56edc15218..aa99fd32e9 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -3469,7 +3469,7 @@ static int img_resize(int argc, char **argv) } } if (optind != argc - 1) { - error_exit("Expecting one image file name"); + error_exit("Expecting image file name and size"); } filename = argv[optind++]; -- 2.13.6