libburnia/libisofs
2
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Yet incomplete implementation of IsoNode cloning.

Browse Source 
(Commited to avoid tangling with upcomming 
 iso_write_opts_set_no_dummy_block_adr())
This commit is contained in:
Thomas Schmitt
2011-01-25 10:50:37 +01:00
parent 92073c45ef
commit a3eeda3d23
15 changed files with 613 additions and 53 deletions
Download Patch File Download Diff File Expand all files Collapse all files

98
libisofs/tree.c
View File

@ -1,5 +1,6 @@
/*
* Copyright (c) 2007 Vreixo Formoso
* Copyright (c) 2011 Thomas Schmitt
*
* This file is part of the libisofs project; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
@ -993,3 +994,100 @@ char *iso_tree_get_node_path(IsoNode *node)
return strdup(path);
}
}
/* ------------------------- tree cloning ------------------------------ */
static
int iso_tree_clone_dir(IsoDir *old_dir,
IsoDir *new_parent, char *new_name, IsoNode **new_node,
int flag)
{
IsoDir *new_dir = NULL;
IsoNode *sub_node = NULL, *new_sub_node = NULL;
IsoDirIter *iter = NULL;
int ret;
*new_node = NULL;
ret = iso_tree_add_new_dir(new_parent, new_name, &new_dir);
if (ret < 0)
return ret;
*new_node = (IsoNode *) new_dir;
ret = iso_dir_get_children(old_dir, &iter);
if (ret < 0)
goto ex;
while(1) {
ret = iso_dir_iter_next(iter, &sub_node);
if (ret == 0)
break;
ret = iso_tree_clone(sub_node, new_dir, sub_node->name, &new_sub_node,
0);
if (ret < 0)
goto ex;
}
ret = ISO_SUCCESS;
ex:;
if (iter != NULL)
iso_dir_iter_free(iter);
if (ret < 0 && new_dir != NULL) {
iso_node_remove_tree((IsoNode *) new_dir, NULL);
*new_node = NULL;
}
return ret;
}
static
int iso_tree_clone_file(IsoFile *old_file,
IsoDir *new_parent, char *new_name, IsoNode **new_node,
int flag)
{
IsoStream *new_stream = NULL;
IsoFile *new_file = NULL;
int ret;
*new_node = NULL;
ret = iso_stream_clone(old_file->stream, &new_stream, 0);
if (ret < 0)
return ret;
ret = iso_tree_add_new_file(new_parent, new_name, new_stream, &new_file);
if (ret < 0)
goto ex;
new_file->sort_weight = old_file->sort_weight;
*new_node = (IsoNode *) new_file;
ret = ISO_SUCCESS;
ex:;
if (new_stream != NULL)
iso_stream_unref(new_stream);
return ret;
}
/* API */
int iso_tree_clone(IsoNode *node,
IsoDir *new_parent, char *new_name, IsoNode **new_node,
int flag)
{
int ret = ISO_SUCCESS;
if (iso_dir_get_node(new_parent, new_name, NULL) == 1)
return ISO_NODE_NAME_NOT_UNIQUE;
/* >>> clone particular node types */;
if (node->type == LIBISO_DIR) {
ret = iso_tree_clone_dir((IsoDir *) node, new_parent, new_name,
new_node, 0);
} else if (node->type == LIBISO_FILE) {
ret = iso_tree_clone_file((IsoFile *) node, new_parent, new_name,
new_node, 0);
} else if (node->type == LIBISO_SYMLINK) {
/* >>> */;
} else if (node->type == LIBISO_SPECIAL) {
/* >>> */;
} else if (node->type == LIBISO_BOOT) {
ret = ISO_SUCCESS; /* API says they are silently ignored */
}
return ret;
}