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-rw-r--r--lib/io/src/dir_tree_iterator.c257
1 files changed, 0 insertions, 257 deletions
diff --git a/lib/io/src/dir_tree_iterator.c b/lib/io/src/dir_tree_iterator.c
deleted file mode 100644
index 5688489..0000000
--- a/lib/io/src/dir_tree_iterator.c
+++ /dev/null
@@ -1,257 +0,0 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
-/*
- * dir_tree_iterator.c
- *
- * Copyright (C) 2023 David Oberhollenzer <goliath@infraroot.at>
- */
-#include "config.h"
-#include "io/dir_iterator.h"
-#include "util/util.h"
-#include "sqfs/error.h"
-#include "sqfs/io.h"
-
-#include <stdlib.h>
-#include <string.h>
-
-typedef struct {
- sqfs_dir_iterator_t base;
-
- dir_tree_cfg_t cfg;
- int state;
- sqfs_dir_iterator_t *rec;
-} dir_tree_iterator_t;
-
-static bool should_skip(const dir_tree_iterator_t *dir, const sqfs_dir_entry_t *ent)
-{
- unsigned int type_mask;
-
- if ((dir->cfg.flags & DIR_SCAN_ONE_FILESYSTEM)) {
- if (ent->flags & SQFS_DIR_ENTRY_FLAG_MOUNT_POINT)
- return true;
- }
-
- switch (ent->mode & S_IFMT) {
- case S_IFSOCK: type_mask = DIR_SCAN_NO_SOCK; break;
- case S_IFLNK: type_mask = DIR_SCAN_NO_SLINK; break;
- case S_IFREG: type_mask = DIR_SCAN_NO_FILE; break;
- case S_IFBLK: type_mask = DIR_SCAN_NO_BLK; break;
- case S_IFCHR: type_mask = DIR_SCAN_NO_CHR; break;
- case S_IFIFO: type_mask = DIR_SCAN_NO_FIFO; break;
- default: type_mask = 0; break;
- }
-
- return (dir->cfg.flags & type_mask) != 0;
-}
-
-static sqfs_dir_entry_t *expand_path(const dir_tree_iterator_t *it, sqfs_dir_entry_t *ent)
-{
- if (it->cfg.prefix != NULL && it->cfg.prefix[0] != '\0') {
- size_t plen = strlen(it->cfg.prefix) + 1;
- size_t slen = strlen(ent->name) + 1;
- void *new = realloc(ent, sizeof(*ent) + plen + slen);
-
- if (new == NULL) {
- free(ent);
- return NULL;
- }
-
- ent = new;
- memmove(ent->name + plen, ent->name, slen);
-
- memcpy(ent->name, it->cfg.prefix, plen - 1);
- ent->name[plen - 1] = '/';
- }
-
- return ent;
-}
-
-static void apply_changes(const dir_tree_iterator_t *it, sqfs_dir_entry_t *ent)
-{
- if (!(it->cfg.flags & DIR_SCAN_KEEP_TIME))
- ent->mtime = it->cfg.def_mtime;
-
- if (!(it->cfg.flags & DIR_SCAN_KEEP_UID))
- ent->uid = it->cfg.def_uid;
-
- if (!(it->cfg.flags & DIR_SCAN_KEEP_GID))
- ent->gid = it->cfg.def_gid;
-
- if (!(it->cfg.flags & DIR_SCAN_KEEP_MODE)) {
- ent->mode &= ~(07777);
- ent->mode |= it->cfg.def_mode & 07777;
- }
-}
-
-/*****************************************************************************/
-
-static void destroy(sqfs_object_t *obj)
-{
- dir_tree_iterator_t *it = (dir_tree_iterator_t *)obj;
-
- sqfs_drop(it->rec);
- free(it);
-}
-
-static int next(sqfs_dir_iterator_t *base, sqfs_dir_entry_t **out)
-{
- dir_tree_iterator_t *it = (dir_tree_iterator_t *)base;
- sqfs_dir_entry_t *ent;
- int ret;
-
- if (it->state)
- return it->state;
-retry:
- *out = NULL;
- ent = NULL;
-
- for (;;) {
- ret = it->rec->next(it->rec, &ent);
- if (ret != 0) {
- it->state = ret;
- return ret;
- }
-
- if (!should_skip(it, ent))
- break;
-
- if (S_ISDIR(ent->mode))
- it->rec->ignore_subdir(it->rec);
- free(ent);
- ent = NULL;
- }
-
- ent = expand_path(it, ent);
- if (ent == NULL) {
- it->state = SQFS_ERROR_ALLOC;
- return it->state;
- }
-
- apply_changes(it, ent);
-
- if (S_ISDIR(ent->mode)) {
- if (it->cfg.flags & DIR_SCAN_NO_RECURSION)
- it->rec->ignore_subdir(it->rec);
-
- if (it->cfg.flags & DIR_SCAN_NO_DIR) {
- free(ent);
- goto retry;
- }
- }
-
- if (it->cfg.name_pattern != NULL) {
- if (it->cfg.flags & DIR_SCAN_MATCH_FULL_PATH) {
- ret = fnmatch(it->cfg.name_pattern,
- ent->name, FNM_PATHNAME);
- } else {
- const char *name = strrchr(ent->name, '/');
- name = (name == NULL) ? ent->name : (name + 1);
-
- ret = fnmatch(it->cfg.name_pattern, name, 0);
- }
-
- if (ret != 0) {
- free(ent);
- goto retry;
- }
- }
-
- *out = ent;
- return it->state;
-}
-
-static int read_link(sqfs_dir_iterator_t *base, char **out)
-{
- dir_tree_iterator_t *it = (dir_tree_iterator_t *)base;
-
- if (it->state)
- return it->state;
-
- return it->rec->read_link(it->rec, out);
-}
-
-static int open_subdir(sqfs_dir_iterator_t *base, sqfs_dir_iterator_t **out)
-{
- dir_tree_iterator_t *it = (dir_tree_iterator_t *)base;
-
- if (it->state)
- return it->state;
-
- return it->rec->open_subdir(it->rec, out);
-}
-
-static void ignore_subdir(sqfs_dir_iterator_t *base)
-{
- dir_tree_iterator_t *it = (dir_tree_iterator_t *)base;
-
- if (it->state == 0)
- it->rec->ignore_subdir(it->rec);
-}
-
-static int open_file_ro(sqfs_dir_iterator_t *base, sqfs_istream_t **out)
-{
- dir_tree_iterator_t *it = (dir_tree_iterator_t *)base;
-
- if (it->state)
- return it->state;
-
- return it->rec->open_file_ro(it->rec, out);
-}
-
-static int read_xattr(sqfs_dir_iterator_t *base, sqfs_xattr_t **out)
-{
- dir_tree_iterator_t *it = (dir_tree_iterator_t *)base;
-
- if (it->state)
- return it->state;
-
- return it->rec->read_xattr(it->rec, out);
-}
-
-sqfs_dir_iterator_t *dir_tree_iterator_create(const char *path,
- const dir_tree_cfg_t *cfg)
-{
- dir_tree_iterator_t *it = calloc(1, sizeof(*it));
- sqfs_dir_iterator_t *dir;
- int ret;
-
- if (it == NULL) {
- perror(path);
- return NULL;
- }
-
- it->cfg = *cfg;
-
- ret = sqfs_dir_iterator_create_native(&dir, path, 0);
- if (ret) {
- perror(path);
- goto fail;
- }
-
- ret = sqfs_dir_iterator_create_recursive(&it->rec, dir);
- sqfs_drop(dir);
- if (ret)
- goto fail_oom;
-
- if (!(cfg->flags & DIR_SCAN_NO_HARDLINKS)) {
- ret = sqfs_hard_link_filter_create(&dir, it->rec);
- sqfs_drop(it->rec);
- it->rec = dir;
- if (ret)
- goto fail_oom;
- }
-
- sqfs_object_init(it, destroy, NULL);
- ((sqfs_dir_iterator_t *)it)->next = next;
- ((sqfs_dir_iterator_t *)it)->read_link = read_link;
- ((sqfs_dir_iterator_t *)it)->open_subdir = open_subdir;
- ((sqfs_dir_iterator_t *)it)->ignore_subdir = ignore_subdir;
- ((sqfs_dir_iterator_t *)it)->open_file_ro = open_file_ro;
- ((sqfs_dir_iterator_t *)it)->read_xattr = read_xattr;
-
- return (sqfs_dir_iterator_t *)it;
-fail_oom:
- fprintf(stderr, "%s: out of memory\n", path);
-fail:
- free(it);
- return NULL;
-}