1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/libe2access/host/op_remove.c Sun Mar 06 01:30:32 2022 +0100
1.3 @@ -0,0 +1,121 @@
1.4 +/*
1.5 + * Remove objects from a filesystem.
1.6 + *
1.7 + * Copyright (C) 2019, 2022 Paul Boddie <paul@boddie.org.uk>
1.8 + *
1.9 + * This program is free software; you can redistribute it and/or
1.10 + * modify it under the terms of the GNU General Public License as
1.11 + * published by the Free Software Foundation; either version 2 of
1.12 + * the License, or (at your option) any later version.
1.13 + *
1.14 + * This program is distributed in the hope that it will be useful,
1.15 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.16 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.17 + * GNU General Public License for more details.
1.18 + *
1.19 + * You should have received a copy of the GNU General Public License
1.20 + * along with this program; if not, write to the Free Software
1.21 + * Foundation, Inc., 51 Franklin Street, Fifth Floor,
1.22 + * Boston, MA 02110-1301, USA
1.23 + */
1.24 +
1.25 +#include <stdio.h>
1.26 +
1.27 +#include <ext2fs/ext2fs.h>
1.28 +
1.29 +#include "image.h"
1.30 +#include "session.h"
1.31 +
1.32 +
1.33 +
1.34 +/* Alternative metadata set by options. */
1.35 +
1.36 +extern struct metadata md;
1.37 +
1.38 +
1.39 +
1.40 +/* Remove objects from the filesystem image. */
1.41 +
1.42 +int _remove(ext2_filsys fs, int argc, char *argv[], int dir_only)
1.43 +{
1.44 + int i;
1.45 + const char *path;
1.46 + ext2_ino_t ino;
1.47 +
1.48 + /* Remove each directory with the given pathname. */
1.49 +
1.50 + for (i = 0; i < argc; i++)
1.51 + {
1.52 + path = argv[i];
1.53 +
1.54 + /* Detect missing objects. */
1.55 +
1.56 + if ((!*path) || image_find_by_path(fs, path, &ino))
1.57 + {
1.58 + fprintf(stderr, "Not found: %s\n", path);
1.59 + return 1;
1.60 + }
1.61 +
1.62 + /* Insist on a directory if specified. */
1.63 +
1.64 + if (dir_only)
1.65 + {
1.66 + if (!image_isdir_by_inode(fs, ino))
1.67 + {
1.68 + fprintf(stderr, "Not a directory: %s\n", path);
1.69 + return 1;
1.70 + }
1.71 +
1.72 + /* Test for an empty directory. */
1.73 +
1.74 + if (image_dir_empty_by_inode(fs, ino))
1.75 + {
1.76 + fprintf(stderr, "Directory not empty: %s\n", path);
1.77 + return 1;
1.78 + }
1.79 + }
1.80 +
1.81 + /* Otherwise, insist on a non-directory. */
1.82 +
1.83 + else if (image_isdir_by_inode(fs, ino))
1.84 + {
1.85 + fprintf(stderr, "Cannot remove a directory: %s\n", path);
1.86 + return 1;
1.87 + }
1.88 +
1.89 + /* Unlink the object. */
1.90 +
1.91 + if (image_unlink_by_path(fs, path))
1.92 + {
1.93 + fprintf(stderr, "Could not unlink object: %s\n", path);
1.94 + return 1;
1.95 + }
1.96 +
1.97 + /* Remove the object. */
1.98 +
1.99 + if (image_remove_by_inode(fs, ino))
1.100 + {
1.101 + fprintf(stderr, "Could not remove object: %s\n", path);
1.102 + return 1;
1.103 + }
1.104 + }
1.105 +
1.106 + return 0;
1.107 +}
1.108 +
1.109 +/* Remove directories from the filesystem image. */
1.110 +
1.111 +int remove_dirs(ext2_filsys fs, int argc, char *argv[])
1.112 +{
1.113 + return _remove(fs, argc, argv, 1);
1.114 +}
1.115 +
1.116 +/* Remove non-directories from the filesystem image. */
1.117 +
1.118 +int remove_non_dirs(ext2_filsys fs, int argc, char *argv[])
1.119 +{
1.120 + return _remove(fs, argc, argv, 0);
1.121 +}
1.122 +
1.123 +/* vim: tabstop=4 expandtab shiftwidth=4
1.124 +*/