From 5c9c8d2b9b78cf4e1f256fe6874855c1aee458f2 Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Thu, 6 May 2021 13:11:31 +0100 Subject: [image] Add "imgextract" command for extracting archive images Add the concept of extracting an image from an archive (which could be a single-file archive such as a gzip-compressed file), along with an "imgextract" command to expose this functionality to scripts. Signed-off-by: Michael Brown --- src/usr/imgarchive.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 src/usr/imgarchive.c (limited to 'src/usr') diff --git a/src/usr/imgarchive.c b/src/usr/imgarchive.c new file mode 100644 index 000000000..6849dd510 --- /dev/null +++ b/src/usr/imgarchive.c @@ -0,0 +1,54 @@ +/* + * Copyright (C) 2021 Michael Brown . + * + * 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 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. + * + * You can also choose to distribute this program under the terms of + * the Unmodified Binary Distribution Licence (as given in the file + * COPYING.UBDL), provided that you have satisfied its requirements. + */ + +FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); + +#include +#include +#include + +/** @file + * + * Archive image management + * + */ + +/** + * Extract archive image + * + * @v image Image + * @v name Extracted image name (or NULL to use default) + * @ret rc Return status code + */ +int imgextract ( struct image *image, const char *name ) { + struct image *extracted; + int rc; + + /* Extract archive image */ + if ( ( rc = image_extract ( image, name, &extracted ) ) != 0 ) { + printf ( "Could not extract image: %s\n", strerror ( rc ) ); + return rc; + } + + return 0; +} -- cgit v1.2.3-55-g7522