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Diffstat (limited to 'cpukit/libfs/src/imfs/imfs_symlink.c')
-rw-r--r--cpukit/libfs/src/imfs/imfs_symlink.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/cpukit/libfs/src/imfs/imfs_symlink.c b/cpukit/libfs/src/imfs/imfs_symlink.c
new file mode 100644
index 0000000000..7094f219fb
--- /dev/null
+++ b/cpukit/libfs/src/imfs/imfs_symlink.c
@@ -0,0 +1,77 @@
+/*
+ * 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;
+}