--- /dev/null
+/*
+ * reference.c
+ *
+ * Reference resources from external WIM file(s).
+ */
+
+/*
+ * Copyright (C) 2013 Eric Biggers
+ *
+ * This file is part of wimlib, a library for working with WIM files.
+ *
+ * wimlib is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 3 of the License, or (at your option)
+ * any later version.
+ *
+ * wimlib is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with wimlib; if not, see http://www.gnu.org/licenses/.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "wimlib.h"
+#include "wimlib/error.h"
+#include "wimlib/glob.h"
+#include "wimlib/lookup_table.h"
+#include "wimlib/wim.h"
+
+static int
+lte_clone_if_new(struct wim_lookup_table_entry *lte, void *_lookup_table)
+{
+ struct wim_lookup_table *lookup_table = _lookup_table;
+
+ if (lookup_stream(lookup_table, lte->hash))
+ return 0; /* Resource already present. */
+
+ lte = clone_lookup_table_entry(lte);
+ if (lte == NULL)
+ return WIMLIB_ERR_NOMEM;
+ lte->out_refcnt = 1;
+ lookup_table_insert(lookup_table, lte);
+ return 0;
+}
+
+static int
+lte_delete_if_new(struct wim_lookup_table_entry *lte, void *_lookup_table)
+{
+ struct wim_lookup_table *lookup_table = _lookup_table;
+
+ if (lte->out_refcnt) {
+ lookup_table_unlink(lookup_table, lte);
+ free_lookup_table_entry(lte);
+ }
+ return 0;
+}
+
+/* API function documented in wimlib.h */
+WIMLIBAPI int
+wimlib_reference_resources(WIMStruct *wim,
+ WIMStruct **resource_wims, unsigned num_resource_wims,
+ int ref_flags)
+{
+ int ret;
+ unsigned i;
+
+ if (wim == NULL)
+ return WIMLIB_ERR_INVALID_PARAM;
+
+ if (num_resource_wims != 0 && resource_wims == NULL)
+ return WIMLIB_ERR_INVALID_PARAM;
+
+ for (i = 0; i < num_resource_wims; i++)
+ if (resource_wims[i] == NULL)
+ return WIMLIB_ERR_INVALID_PARAM;
+
+ for_lookup_table_entry(wim->lookup_table, lte_zero_out_refcnt, NULL);
+
+ for (i = 0; i < num_resource_wims; i++) {
+ ret = for_lookup_table_entry(resource_wims[i]->lookup_table,
+ lte_clone_if_new,
+ wim->lookup_table);
+ if (ret)
+ goto out_rollback;
+ }
+ return 0;
+
+out_rollback:
+ for_lookup_table_entry(wim->lookup_table, lte_delete_if_new,
+ wim->lookup_table);
+ return ret;
+}
+
+static int
+reference_resource_paths(WIMStruct *wim,
+ const tchar * const *resource_wimfiles,
+ unsigned num_resource_wimfiles,
+ int ref_flags,
+ int open_flags,
+ wimlib_progress_func_t progress_func)
+{
+ WIMStruct **resource_wims;
+ unsigned i;
+ int ret;
+
+ resource_wims = CALLOC(num_resource_wimfiles, sizeof(resource_wims[0]));
+ if (!resource_wims)
+ return WIMLIB_ERR_NOMEM;
+
+ for (i = 0; i < num_resource_wimfiles; i++) {
+ DEBUG("Referencing resources from path \"%"TS"\"",
+ resource_wimfiles[i]);
+ ret = wimlib_open_wim(resource_wimfiles[i], open_flags,
+ &resource_wims[i], progress_func);
+ if (ret)
+ goto out_free_resource_wims;
+ }
+
+ ret = wimlib_reference_resources(wim, resource_wims,
+ num_resource_wimfiles, ref_flags);
+ if (ret)
+ goto out_free_resource_wims;
+
+ for (i = 0; i < num_resource_wimfiles; i++)
+ list_add_tail(&resource_wims[i]->subwim_node, &wim->subwims);
+
+ ret = 0;
+ goto out_free_array;
+
+out_free_resource_wims:
+ for (i = 0; i < num_resource_wimfiles; i++)
+ wimlib_free(resource_wims[i]);
+out_free_array:
+ FREE(resource_wims);
+ return ret;
+}
+
+static int
+reference_resource_glob(WIMStruct *wim, const tchar *refglob,
+ int ref_flags, int open_flags,
+ wimlib_progress_func_t progress_func)
+{
+ glob_t globbuf;
+ int ret;
+
+ /* Note: glob() is replaced in Windows native builds. */
+ ret = tglob(refglob, GLOB_ERR | GLOB_NOSORT, NULL, &globbuf);
+ if (ret) {
+ if (ret == GLOB_NOMATCH) {
+ if (ref_flags & WIMLIB_REF_FLAG_GLOB_ERR_ON_NOMATCH) {
+ ERROR("Found no files for glob \"%"TS"\"", refglob);
+ return WIMLIB_ERR_GLOB_HAD_NO_MATCHES;
+ } else {
+ return reference_resource_paths(wim,
+ &refglob,
+ 1,
+ ref_flags,
+ open_flags,
+ progress_func);
+ }
+ } else {
+ ERROR_WITH_ERRNO("Failed to process glob \"%"TS"\"", refglob);
+ if (ret == GLOB_NOSPACE)
+ return WIMLIB_ERR_NOMEM;
+ else
+ return WIMLIB_ERR_READ;
+ }
+ }
+
+ ret = reference_resource_paths(wim,
+ (const tchar * const *)globbuf.gl_pathv,
+ globbuf.gl_pathc,
+ ref_flags,
+ open_flags,
+ progress_func);
+ globfree(&globbuf);
+ return ret;
+}
+
+/* API function documented in wimlib.h */
+WIMLIBAPI int
+wimlib_reference_resource_files(WIMStruct *wim,
+ const tchar * const * resource_wimfiles_or_globs,
+ unsigned count,
+ int ref_flags,
+ int open_flags,
+ wimlib_progress_func_t progress_func)
+{
+ unsigned i;
+ int ret;
+
+ if (ref_flags & WIMLIB_REF_FLAG_GLOB_ENABLE) {
+ for (i = 0; i < count; i++) {
+ ret = reference_resource_glob(wim,
+ resource_wimfiles_or_globs[i],
+ ref_flags,
+ open_flags,
+ progress_func);
+ if (ret)
+ return ret;
+ }
+ return 0;
+ } else {
+ return reference_resource_paths(wim, resource_wimfiles_or_globs,
+ count, ref_flags,
+ open_flags, progress_func);
+ }
+}
git://wimlib.net / wimlib / blobdiff