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/*
* IMFS_symlink
*
* The following rouine creates a new symbolic link node under parent
* with the name given in name. The node is set to point to the node at
* to_loc.
*
* COPYRIGHT (c) 1989-2009.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include "imfs.h"
#include <rtems/libio_.h>
#include <rtems/seterr.h>
int IMFS_symlink(
rtems_filesystem_location_info_t *parent_loc,
const char *link_name,
const char *node_name
)
{
IMFS_types_union info;
IMFS_jnode_t *new_node;
char new_name[ IMFS_NAME_MAX + 1 ];
int i;
/*
* Remove any separators at the end of the string.
*/
IMFS_get_token( node_name, strlen( node_name ), new_name, &i );
/*
* Duplicate link name
*/
info.sym_link.name = strdup(link_name);
if (info.sym_link.name == NULL) {
rtems_set_errno_and_return_minus_one(ENOMEM);
}
/*
* Create a new link node.
*
* NOTE: Coverity CID 22 notes this as a resource leak.
* While technically not a leak, it indicated that IMFS_create_node
* was ONLY passed a NULL when we created the root node. We
* added a new IMFS_create_root_node() so this path no longer
* existed. The result was simpler code which should not have
* this path.
*/
new_node = IMFS_create_node(
parent_loc,
IMFS_SYM_LINK,
new_name,
( S_IFLNK | ( S_IRWXU | S_IRWXG | S_IRWXO )),
&info
);
if (new_node == NULL) {
free(info.sym_link.name);
rtems_set_errno_and_return_minus_one(ENOMEM);
}
return 0;
}
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