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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
*/
/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Portions of this source code were derived from Berkeley 4.3 BSD
* under license from the Regents of the University of California.
*/
#ifndef _SYS_PATHNAME_H
#define _SYS_PATHNAME_H
#ifdef __cplusplus
extern "C" {
#endif
/*
* Pathname structure.
* System calls that operate on path names gather the path name
* from the system call into this structure and reduce it by
* peeling off translated components. If a symbolic link is
* encountered the new path name to be translated is also
* assembled in this structure.
*
* By convention pn_buf is not changed once it's been set to point
* to the underlying storage; routines which manipulate the pathname
* do so by changing pn_path and pn_pathlen. pn_pathlen is redundant
* since the path name is null-terminated, but is provided to make
* some computations faster.
*/
typedef struct pathname {
char *pn_buf; /* underlying storage */
#if 0 /* unused in ZoL */
char *pn_path; /* remaining pathname */
size_t pn_pathlen; /* remaining length */
#endif
size_t pn_bufsize; /* total size of pn_buf */
} pathname_t;
extern void pn_alloc(struct pathname *);
extern void pn_alloc_sz(struct pathname *, size_t);
extern void pn_free(struct pathname *);
#ifdef __cplusplus
}
#endif
#endif /* _SYS_PATHNAME_H */
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