- if (ret == 0) {
- *root_ret = root;
- } else {
- free_dentry_tree(root, lookup_table);
- lookup_table_free_unhashed_streams(lookup_table);
- }
- return ret;
-}
-
-/*
- * unix_build_dentry_tree():
- * Builds a tree of WIM dentries from an on-disk directory tree (UNIX
- * version; no NTFS-specific data is captured).
- *
- * @root_ret: Place to return a pointer to the root of the dentry tree. Only
- * modified if successful. Set to NULL if the file or directory was
- * excluded from capture.
- *
- * @root_disk_path: The path to the root of the directory tree on disk.
- *
- * @lookup_table: The lookup table for the WIM file. For each file added to the
- * dentry tree being built, an entry is added to the lookup table,
- * unless an identical stream is already in the lookup table.
- * These lookup table entries that are added point to the path of
- * the file on disk.
- *
- * @sd_set: Ignored. (Security data only captured in NTFS mode.)
- *
- * @config:
- * Configuration for files to be excluded from capture.
- *
- * @add_flags: Bitwise or of WIMLIB_ADD_IMAGE_FLAG_*
- *
- * @extra_arg: Ignored
- *
- * @return: 0 on success, nonzero on failure. It is a failure if any of
- * the files cannot be `stat'ed, or if any of the needed
- * directories cannot be opened or read. Failure to add the files
- * to the WIM may still occur later when trying to actually read
- * the on-disk files during a call to wimlib_write() or
- * wimlib_overwrite().
- */
-static int
-unix_build_dentry_tree(struct wim_dentry **root_ret,
- const char *root_disk_path,
- struct wim_lookup_table *lookup_table,
- struct wim_inode_table *inode_table,
- struct sd_set *sd_set,
- const struct wimlib_capture_config *config,
- int add_image_flags,
- wimlib_progress_func_t progress_func,
- void *extra_arg)
-{
- char *path_buf;
- int ret;
- size_t path_len;
- size_t path_bufsz;
-
- path_bufsz = min(32790, PATH_MAX + 1);
- path_len = strlen(root_disk_path);
-
- if (path_len >= path_bufsz)
- return WIMLIB_ERR_INVALID_PARAM;
-
- path_buf = MALLOC(path_bufsz);
- if (!path_buf)
- return WIMLIB_ERR_NOMEM;
- memcpy(path_buf, root_disk_path, path_len + 1);
- ret = unix_build_dentry_tree_recursive(root_ret,
- path_buf,
- path_len,
- lookup_table,
- inode_table,
- config,
- add_image_flags,
- progress_func);
- FREE(path_buf);
- return ret;
-}
-#endif /* !__WIN32__ */
-
-static bool
-match_pattern(const tchar *path,
- const tchar *path_basename,
- const struct wimlib_pattern_list *list)
-{
- for (size_t i = 0; i < list->num_pats; i++) {
-
- const tchar *pat = list->pats[i];
- const tchar *string;
-
- if (*pat == T('/')) {
- /* Absolute path from root of capture */
- string = path;
- } else {
- if (tstrchr(pat, T('/')))
- /* Relative path from root of capture */
- string = path + 1;
- else
- /* A file name pattern */
- string = path_basename;
- }
-
- /* Warning: on Windows native builds, fnmatch() calls the
- * replacement function in win32.c. */
- if (fnmatch(pat, string, FNM_PATHNAME | FNM_NOESCAPE
- #ifdef FNM_CASEFOLD
- | FNM_CASEFOLD
- #endif
- ) == 0)
- {
- DEBUG("\"%"TS"\" matches the pattern \"%"TS"\"",
- string, pat);
- return true;
- } else {
- DEBUG2("\"%"TS"\" does not match the pattern \"%"TS"\"",
- string, pat);
- }
- }
- return false;
-}
-
-/* Return true if the image capture configuration file indicates we should
- * exclude the filename @path from capture.
- *
- * If @exclude_prefix is %true, the part of the path up and including the name
- * of the directory being captured is not included in the path for matching
- * purposes. This allows, for example, a pattern like /hiberfil.sys to match a
- * file /mnt/windows7/hiberfil.sys if we are capturing the /mnt/windows7
- * directory.
- */
-bool
-exclude_path(const tchar *path, size_t path_len,
- const struct wimlib_capture_config *config, bool exclude_prefix)
-{
- const tchar *basename = path_basename_with_len(path, path_len);
- if (exclude_prefix) {
- wimlib_assert(path_len >= config->_prefix_num_tchars);
- if (!tmemcmp(config->_prefix, path, config->_prefix_num_tchars) &&
- path[config->_prefix_num_tchars] == T('/'))
- {
- path += config->_prefix_num_tchars;
- }
- }
- return match_pattern(path, basename, &config->exclusion_pats) &&
- !match_pattern(path, basename, &config->exclusion_exception_pats);
-
-}
-
-/* Strip leading and trailing forward slashes from a string. Modifies it in
- * place and returns the stripped string. */
-static const tchar *
-canonicalize_target_path(tchar *target_path)
-{
- tchar *p;
- if (target_path == NULL)
- return T("");
- for (;;) {
- if (*target_path == T('\0'))
- return target_path;
- else if (*target_path == T('/'))
- target_path++;
- else
- break;
- }
-
- p = tstrchr(target_path, T('\0')) - 1;
- while (*p == T('/'))
- *p-- = T('\0');
- return target_path;
-}
-
-/* Strip leading and trailing slashes from the target paths, and translate all
- * backslashes in the source and target paths into forward slashes. */
-static void
-canonicalize_sources_and_targets(struct wimlib_capture_source *sources,
- size_t num_sources)
-{
- while (num_sources--) {
- DEBUG("Canonicalizing { source: \"%"TS"\", target=\"%"TS"\"}",
- sources->fs_source_path,
- sources->wim_target_path);
-
- /* The Windows API can handle forward slashes. Just get rid of
- * backslashes to avoid confusing other parts of the library
- * code. */
- zap_backslashes(sources->fs_source_path);
- if (sources->wim_target_path)
- zap_backslashes(sources->wim_target_path);
-
- sources->wim_target_path =
- (tchar*)canonicalize_target_path(sources->wim_target_path);
- DEBUG("Canonical target: \"%"TS"\"", sources->wim_target_path);
- sources++;
- }
-}
-
-static int
-capture_source_cmp(const void *p1, const void *p2)
-{
- const struct wimlib_capture_source *s1 = p1, *s2 = p2;
- return tstrcmp(s1->wim_target_path, s2->wim_target_path);
-}
-
-/* Sorts the capture sources lexicographically by target path. This occurs
- * after leading and trailing forward slashes are stripped.
- *
- * One purpose of this is to make sure that target paths that are inside other
- * target paths are added after the containing target paths. */
-static void
-sort_sources(struct wimlib_capture_source *sources, size_t num_sources)
-{
- qsort(sources, num_sources, sizeof(sources[0]), capture_source_cmp);
-}
-
-static int
-check_sorted_sources(struct wimlib_capture_source *sources, size_t num_sources,
- int add_image_flags)
-{
- if (add_image_flags & WIMLIB_ADD_IMAGE_FLAG_NTFS) {
- if (num_sources != 1) {
- ERROR("Must specify exactly 1 capture source "
- "(the NTFS volume) in NTFS mode!");
- return WIMLIB_ERR_INVALID_PARAM;
- }
- if (sources[0].wim_target_path[0] != T('\0')) {
- ERROR("In NTFS capture mode the target path inside "
- "the image must be the root directory!");
- return WIMLIB_ERR_INVALID_PARAM;
- }
- } else if (num_sources != 0) {
- /* This code is disabled because the current code
- * unconditionally attempts to do overlays. So, duplicate
- * target paths are OK. */
- #if 0
- if (num_sources > 1 && sources[0].wim_target_path[0] == '\0') {
- ERROR("Cannot specify root target when using multiple "
- "capture sources!");
- return WIMLIB_ERR_INVALID_PARAM;
- }
- for (size_t i = 0; i < num_sources - 1; i++) {
- size_t len = strlen(sources[i].wim_target_path);
- size_t j = i + 1;
- const char *target1 = sources[i].wim_target_path;
- do {
- const char *target2 = sources[j].wim_target_path;
- DEBUG("target1=%s, target2=%s",
- target1,target2);
- if (strncmp(target1, target2, len) ||
- target2[len] > '/')
- break;
- if (target2[len] == '/') {
- ERROR("Invalid target `%s': is a prefix of `%s'",
- target1, target2);
- return WIMLIB_ERR_INVALID_PARAM;
- }
- if (target2[len] == '\0') {
- ERROR("Invalid target `%s': is a duplicate of `%s'",
- target1, target2);
- return WIMLIB_ERR_INVALID_PARAM;
- }
- } while (++j != num_sources);
- }
- #endif
- }
- return 0;
-
-}
-
-/* Creates a new directory to place in the WIM image. This is to create parent
- * directories that are not part of any target as needed. */
-static int
-new_filler_directory(const tchar *name, struct wim_dentry **dentry_ret)
-{
- int ret;
- struct wim_dentry *dentry;
-
- DEBUG("Creating filler directory \"%"TS"\"", name);
- ret = new_dentry_with_inode(name, &dentry);
- if (ret == 0) {
- /* Leave the inode number as 0; this is allowed for non
- * hard-linked files. */
- dentry->d_inode->i_resolved = 1;
- dentry->d_inode->i_attributes = FILE_ATTRIBUTE_DIRECTORY;
- *dentry_ret = dentry;
- }