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-rw-r--r--unpack/restore_fstree.c320
1 files changed, 0 insertions, 320 deletions
diff --git a/unpack/restore_fstree.c b/unpack/restore_fstree.c
deleted file mode 100644
index 8f99439..0000000
--- a/unpack/restore_fstree.c
+++ /dev/null
@@ -1,320 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * restore_fstree.c
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#include "rdsquashfs.h"
-
-#ifdef _WIN32
-static int create_node(const sqfs_tree_node_t *n, const char *name)
-{
- WCHAR *wpath;
- HANDLE fh;
-
- wpath = path_to_windows(name);
- if (wpath == NULL)
- return -1;
-
- switch (n->inode->base.mode & S_IFMT) {
- case S_IFDIR:
- if (!CreateDirectoryW(wpath, NULL))
- goto fail;
- break;
- case S_IFREG:
- fh = CreateFileW(wpath, GENERIC_READ,
- FILE_SHARE_READ | FILE_SHARE_WRITE,
- NULL, CREATE_NEW, 0, NULL);
-
- if (fh == INVALID_HANDLE_VALUE)
- goto fail;
-
- CloseHandle(fh);
- break;
- default:
- break;
- }
-
- free(wpath);
- return 0;
-fail:
- fprintf(stderr, "Creating %s: %ld\n", name, GetLastError());
- free(wpath);
- return -1;
-}
-#else
-static int create_node(const sqfs_tree_node_t *n, const char *name)
-{
- sqfs_u32 devno;
- int fd;
-
- switch (n->inode->base.mode & S_IFMT) {
- case S_IFDIR:
- if (mkdir(name, 0755) && errno != EEXIST) {
- fprintf(stderr, "mkdir %s: %s\n",
- name, strerror(errno));
- return -1;
- }
- break;
- case S_IFLNK:
- if (symlink((const char *)n->inode->extra, name)) {
- fprintf(stderr, "ln -s %s %s: %s\n",
- (const char *)n->inode->extra, name,
- strerror(errno));
- return -1;
- }
- break;
- case S_IFSOCK:
- case S_IFIFO:
- if (mknod(name, (n->inode->base.mode & S_IFMT) | 0700, 0)) {
- fprintf(stderr, "creating %s: %s\n",
- name, strerror(errno));
- return -1;
- }
- break;
- case S_IFBLK:
- case S_IFCHR:
- if (n->inode->base.type == SQFS_INODE_EXT_BDEV ||
- n->inode->base.type == SQFS_INODE_EXT_CDEV) {
- devno = n->inode->data.dev_ext.devno;
- } else {
- devno = n->inode->data.dev.devno;
- }
-
- if (mknod(name, n->inode->base.mode & S_IFMT, devno)) {
- fprintf(stderr, "creating device %s: %s\n",
- name, strerror(errno));
- return -1;
- }
- break;
- case S_IFREG:
- fd = open(name, O_WRONLY | O_CREAT | O_EXCL, 0600);
-
- if (fd < 0) {
- fprintf(stderr, "creating %s: %s\n",
- name, strerror(errno));
- return -1;
- }
-
- close(fd);
- break;
- default:
- break;
- }
-
- return 0;
-}
-#endif
-
-static int create_node_dfs(const sqfs_tree_node_t *n, int flags)
-{
- const sqfs_tree_node_t *c;
- char *name;
- int ret;
-
- if (!is_filename_sane((const char *)n->name, true)) {
- fprintf(stderr, "Found an entry named '%s', skipping.\n",
- n->name);
- return 0;
- }
-
- name = sqfs_tree_node_get_path(n);
- if (name == NULL) {
- fprintf(stderr, "Constructing full path for '%s': %s\n",
- (const char *)n->name, strerror(errno));
- return -1;
- }
-
- ret = canonicalize_name(name);
- assert(ret == 0);
-
- if (!(flags & UNPACK_QUIET))
- printf("creating %s\n", name);
-
- ret = create_node(n, name);
- free(name);
- if (ret)
- return -1;
-
- if (S_ISDIR(n->inode->base.mode)) {
- for (c = n->children; c != NULL; c = c->next) {
- if (create_node_dfs(c, flags))
- return -1;
- }
- }
- return 0;
-}
-
-#ifdef HAVE_SYS_XATTR_H
-static int set_xattr(const char *path, sqfs_xattr_reader_t *xattr,
- const sqfs_tree_node_t *n)
-{
- sqfs_xattr_value_t *value;
- sqfs_xattr_entry_t *key;
- sqfs_xattr_id_t desc;
- sqfs_u32 index;
- size_t i;
- int ret;
-
- sqfs_inode_get_xattr_index(n->inode, &index);
-
- if (index == 0xFFFFFFFF)
- return 0;
-
- if (sqfs_xattr_reader_get_desc(xattr, index, &desc)) {
- fputs("Error resolving xattr index\n", stderr);
- return -1;
- }
-
- if (sqfs_xattr_reader_seek_kv(xattr, &desc)) {
- fputs("Error locating xattr key-value pairs\n", stderr);
- return -1;
- }
-
- for (i = 0; i < desc.count; ++i) {
- if (sqfs_xattr_reader_read_key(xattr, &key)) {
- fputs("Error reading xattr key\n", stderr);
- return -1;
- }
-
- if (sqfs_xattr_reader_read_value(xattr, key, &value)) {
- fputs("Error reading xattr value\n", stderr);
- free(key);
- return -1;
- }
-
- ret = lsetxattr(path, (const char *)key->key,
- value->value, value->size, 0);
- if (ret) {
- fprintf(stderr, "setting xattr '%s' on %s: %s\n",
- key->key, path, strerror(errno));
- }
-
- free(key);
- free(value);
- if (ret)
- return -1;
- }
-
- return 0;
-}
-#endif
-
-static int set_attribs(sqfs_xattr_reader_t *xattr,
- const sqfs_tree_node_t *n, int flags)
-{
- const sqfs_tree_node_t *c;
- char *path;
- int ret;
-
- if (!is_filename_sane((const char *)n->name, true))
- return 0;
-
- if (S_ISDIR(n->inode->base.mode)) {
- for (c = n->children; c != NULL; c = c->next) {
- if (set_attribs(xattr, c, flags))
- return -1;
- }
- }
-
- path = sqfs_tree_node_get_path(n);
- if (path == NULL) {
- fprintf(stderr, "Reconstructing full path: %s\n",
- strerror(errno));
- return -1;
- }
-
- ret = canonicalize_name(path);
- assert(ret == 0);
-
-#ifdef HAVE_SYS_XATTR_H
- if ((flags & UNPACK_SET_XATTR) && xattr != NULL) {
- if (set_xattr(path, xattr, n))
- goto fail;
- }
-#endif
-
-#ifndef _WIN32
- if (flags & UNPACK_SET_TIMES) {
- struct timespec times[2];
-
- memset(times, 0, sizeof(times));
- times[0].tv_sec = n->inode->base.mod_time;
- times[1].tv_sec = n->inode->base.mod_time;
-
- if (utimensat(AT_FDCWD, path, times, AT_SYMLINK_NOFOLLOW)) {
- fprintf(stderr, "setting timestamp on %s: %s\n",
- path, strerror(errno));
- goto fail;
- }
- }
-#endif
- if (flags & UNPACK_CHOWN) {
- if (fchownat(AT_FDCWD, path, n->uid, n->gid,
- AT_SYMLINK_NOFOLLOW)) {
- fprintf(stderr, "chown %s: %s\n",
- path, strerror(errno));
- goto fail;
- }
- }
-
- if (flags & UNPACK_CHMOD && !S_ISLNK(n->inode->base.mode)) {
- if (fchmodat(AT_FDCWD, path,
- n->inode->base.mode & ~S_IFMT, 0)) {
- fprintf(stderr, "chmod %s: %s\n",
- path, strerror(errno));
- goto fail;
- }
- }
-
- free(path);
- return 0;
-fail:
- free(path);
- return -1;
-}
-
-int restore_fstree(sqfs_tree_node_t *root, int flags)
-{
- sqfs_tree_node_t *n, *old_parent;
-
- /* make sure fstree_get_path() stops at this node */
- old_parent = root->parent;
- root->parent = NULL;
-
- if (S_ISDIR(root->inode->base.mode)) {
- for (n = root->children; n != NULL; n = n->next) {
- if (create_node_dfs(n, flags))
- return -1;
- }
- } else {
- if (create_node_dfs(root, flags))
- return -1;
- }
-
- root->parent = old_parent;
- return 0;
-}
-
-int update_tree_attribs(sqfs_xattr_reader_t *xattr,
- const sqfs_tree_node_t *root, int flags)
-{
- const sqfs_tree_node_t *n;
-
- if ((flags & (UNPACK_CHOWN | UNPACK_CHMOD |
- UNPACK_SET_TIMES | UNPACK_SET_XATTR)) == 0) {
- return 0;
- }
-
- if (S_ISDIR(root->inode->base.mode)) {
- for (n = root->children; n != NULL; n = n->next) {
- if (set_attribs(xattr, n, flags))
- return -1;
- }
- } else {
- if (set_attribs(xattr, root, flags))
- return -1;
- }
-
- return 0;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-02 16:29:36 +0000