1 /* 2 * Filesystem image access functions. 3 * 4 * Copyright (C) 2019, 2021, 2022 Paul Boddie <paul@boddie.org.uk> 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License as 8 * published by the Free Software Foundation; either version 2 of 9 * the License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA 20 */ 21 22 #ifndef __IMAGE_H__ 23 #define __IMAGE_H__ 24 25 #include <ext2fs/ext2fs.h> 26 #include <sys/stat.h> 27 28 #ifdef __cplusplus 29 extern "C" { 30 #endif 31 32 /* Filesystem operations. */ 33 34 errcode_t image_access_by_path(ext2_filsys fs, const char *path, 35 errcode_t (*op)(ext2_filsys, ext2_ino_t), 36 ext2_ino_t *ino); 37 38 errcode_t image_create_file(ext2_filsys fs, ext2_ino_t ino_target, 39 const char *basename, __u16 mode, 40 __u16 uid, __u16 gid, ext2_ino_t *ino_file); 41 42 errcode_t image_dir_empty_by_inode(ext2_filsys fs, ext2_ino_t ino); 43 44 errcode_t image_dir_empty_by_path(ext2_filsys fs, const char *path, 45 ext2_ino_t *ino); 46 47 errcode_t image_dir_get_parent(ext2_filsys fs, ext2_ino_t ino, 48 ext2_ino_t *ino_parent); 49 50 int image_file_type(int mode); 51 52 errcode_t image_find_by_path(ext2_filsys fs, const char *path, ext2_ino_t *ino); 53 54 errcode_t image_resolve_by_path(ext2_filsys fs, const char **path, 55 ext2_ino_t *ino); 56 57 errcode_t image_resolve_next(ext2_filsys fs, ext2_ino_t ino_dir, 58 const char **basename, char *buf, ext2_ino_t *ino); 59 60 errcode_t image_find_file(ext2_filsys fs, const char *dirname, 61 const char *basename, ext2_ino_t *ino); 62 63 errcode_t image_find_file_by_inode(ext2_filsys fs, ext2_ino_t ino_parent, 64 const char *basename, ext2_ino_t *ino); 65 66 errcode_t image_inode(ext2_filsys fs, const char *path, 67 struct ext2_inode *inode); 68 69 errcode_t image_inode_refcount_update(ext2_filsys fs, ext2_ino_t ino, 70 int change); 71 72 errcode_t image_list_dir(ext2_filsys fs, const char *path, 73 int (*proc)(struct ext2_dir_entry *, int, int, char *, 74 void *), 75 void *data); 76 77 errcode_t image_make_dir(ext2_filsys fs, ext2_ino_t ino_dir, 78 const char *basename, __u16 mode, 79 __u16 uid, __u16 gid, ext2_ino_t *ino); 80 81 errcode_t image_make_next_dir(ext2_filsys fs, ext2_ino_t ino_dir, 82 const char **basename, __u16 mode, __u16 uid, 83 __u16 gid, ext2_ino_t *ino); 84 85 errcode_t image_make_dirs(ext2_filsys fs, const char **path, 86 ext2_ino_t ino_dir, __u16 mode, __u16 uid, 87 __u16 gid); 88 89 errcode_t image_remove_by_inode(ext2_filsys fs, ext2_ino_t ino); 90 91 errcode_t image_remove_by_path(ext2_filsys fs, const char *path, 92 ext2_ino_t *ino); 93 94 errcode_t image_rename(ext2_filsys fs, ext2_ino_t source, 95 ext2_ino_t source_parent, const char *source_basename, 96 ext2_ino_t target_parent, const char *target_basename); 97 98 void image_set_metadata(struct ext2_inode *inode, int clean, __u16 mode, 99 __u16 uid, __u16 gid); 100 101 errcode_t image_stat_inode(ext2_filsys fs, ext2_ino_t ino, struct stat *st); 102 103 errcode_t image_unlink_by_name(ext2_filsys fs, ext2_ino_t ino_parent, 104 const char *basename); 105 106 errcode_t image_unlink_by_path(ext2_filsys fs, const char *path); 107 108 errcode_t image_unlink_by_inode(ext2_filsys fs, ext2_ino_t ino_parent, 109 ext2_ino_t ino); 110 111 /* Presence and type tests. */ 112 113 int image_exists(ext2_filsys fs, const char *path); 114 115 int image_isdir_by_inode(ext2_filsys fs, ext2_ino_t ino); 116 117 int image_isdir_by_path(ext2_filsys fs, const char *path); 118 119 int image_isfile_by_inode(ext2_filsys fs, ext2_ino_t ino); 120 121 int image_isfile_by_path(ext2_filsys fs, const char *path); 122 123 #ifdef __cplusplus 124 } 125 #endif 126 127 128 #endif /* __IMAGE_H__ */ 129 130 /* vim: tabstop=4 expandtab shiftwidth=4 131 */