Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

===================================================================
RCS file: /ftp/cvs/cvsroot/src/sys/kern/vfs_lookup.c,v
rcsdiff: /ftp/cvs/cvsroot/src/sys/kern/vfs_lookup.c,v: warning: Unknown phrases like `commitid ...;' are present.
retrieving revision 1.75
retrieving revision 1.76
diff -u -p -r1.75 -r1.76
--- src/sys/kern/vfs_lookup.c	2006/12/13 13:36:19	1.75
+++ src/sys/kern/vfs_lookup.c	2006/12/24 08:54:55	1.76
@@ -1,4 +1,4 @@
-/*	$NetBSD: vfs_lookup.c,v 1.75 2006/12/13 13:36:19 yamt Exp $	*/
+/*	$NetBSD: vfs_lookup.c,v 1.76 2006/12/24 08:54:55 elad Exp $	*/
 
 /*
  * Copyright (c) 1982, 1986, 1989, 1993
@@ -37,7 +37,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: vfs_lookup.c,v 1.75 2006/12/13 13:36:19 yamt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: vfs_lookup.c,v 1.76 2006/12/24 08:54:55 elad Exp $");
 
 #include "opt_ktrace.h"
 #include "opt_systrace.h"
@@ -70,6 +70,11 @@ __KERNEL_RCSID(0, "$NetBSD: vfs_lookup.c
 #define MAGICLINKS 0
 #endif
 
+struct pathname_internal {
+	char *pathbuf;
+	boolean_t needfree;
+};
+
 int vfs_magiclinks = MAGICLINKS;
 
 struct pool pnbuf_pool;		/* pathname buffer pool */
@@ -191,6 +196,52 @@ symlink_magic(struct proc *p, char *cp, 
 #undef MATCH
 #undef SUBSTITUTE
 
+int
+pathname_get(const char *dirp, enum uio_seg segflg, pathname_t *path)
+{
+	int error;
+
+	if (dirp == NULL)
+		return (EFAULT);
+
+	*path = malloc(sizeof(struct pathname_internal), M_TEMP,
+	    M_ZERO|M_WAITOK);
+
+	if (segflg == UIO_USERSPACE) {
+		(*path)->pathbuf = PNBUF_GET();
+		error = copyinstr(dirp, (*path)->pathbuf, MAXPATHLEN,
+		    NULL);
+		if (error) {
+			PNBUF_PUT((*path)->pathbuf);
+			free(path, M_TEMP);
+			return (error);
+		}
+		(*path)->needfree = TRUE;
+	} else {
+		(*path)->pathbuf = __UNCONST(dirp);
+		(*path)->needfree = FALSE;
+	}
+
+	return (0);
+}
+
+const char *
+pathname_path(pathname_t path)
+{
+	KASSERT(path != NULL);
+	return (path->pathbuf);
+}
+
+void
+pathname_put(pathname_t path)
+{
+	if (path != NULL) {
+		if (path->pathbuf != NULL && path->needfree)
+			PNBUF_PUT(path->pathbuf);
+		free(path, M_TEMP);
+	}
+}
+
 /*
  * Convert a pathname into a pointer to a locked vnode.
  *