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-rw-r--r--c/src/exec/libfs/src/imfs/imfs_chown.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/c/src/exec/libfs/src/imfs/imfs_chown.c b/c/src/exec/libfs/src/imfs/imfs_chown.c
new file mode 100644
index 0000000000..816294ee34
--- /dev/null
+++ b/c/src/exec/libfs/src/imfs/imfs_chown.c
@@ -0,0 +1,52 @@
+/*
+ * IMFS_chown
+ *
+ * This routine is the implementation of the chown() system
+ * call for the IMFS.
+ *
+ * COPYRIGHT (c) 1989-1998.
+ * On-Line Applications Research Corporation (OAR).
+ * Copyright assigned to U.S. Government, 1994.
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.OARcorp.com/rtems/license.html.
+ *
+ * $Id$
+ */
+
+#include <errno.h>
+#include "libio_.h"
+#include "imfs.h"
+
+int IMFS_chown(
+ rtems_filesystem_location_info_t *pathloc, /* IN */
+ uid_t owner, /* IN */
+ gid_t group /* IN */
+)
+{
+ IMFS_jnode_t *jnode;
+#if defined(RTEMS_POSIX_API)
+ uid_t st_uid;
+#endif
+
+ jnode = (IMFS_jnode_t *) pathloc->node_access;
+
+ /*
+ * Verify I am the owner of the node or the super user.
+ */
+
+#if defined(RTEMS_POSIX_API)
+ st_uid = geteuid();
+
+ if ( ( st_uid != jnode->st_uid ) && ( st_uid != 0 ) )
+ set_errno_and_return_minus_one( EPERM );
+#endif
+
+ jnode->st_uid = owner;
+ jnode->st_gid = group;
+
+ IMFS_update_ctime( jnode );
+
+ return 0;
+}