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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 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _ST_PATHNAME_H
#define _ST_PATHNAME_H
#ifdef __cplusplus
extern "C" {
#endif
/*
* Pathname structure.
* System calls which operate on path names gather the
* pathname from system call into this structure and reduce
* it by peeling off translated components. If a symbolic
* link is encountered the new pathname to be translated
* is also assembled in this structure.
*/
struct st_pathname {
char *pn_buf; /* underlying storage */
char *pn_path; /* remaining pathname */
uint_t pn_pathlen; /* remaining length */
};
#define PN_STRIP 0x00 /* Strip next component off pn */
#define PN_PEEK 0x01 /* Only peek at next pn component */
#define stpn_peekcomponent(PNP, COMP) stpn_getcomponent(PNP, COMP, PN_PEEK)
#define stpn_stripcomponent(PNP, COMP) stpn_getcomponent(PNP, COMP, PN_STRIP)
#define stpn_peekchar(PNP) (((PNP)->pn_pathlen != 0) ? \
*((PNP)->pn_path) : (char)0)
#define stpn_pathleft(PNP) ((PNP)->pn_pathlen)
#define stpn_getpath(PNP) ((PNP)->pn_path)
#define stpn_copy(PNP1, PNP2) (stpn_set(PNP2, stpn_getpath(PNP1)))
extern int stpn_alloc(); /* allocate buffer for pathname */
extern int stpn_get(); /* allocate buf and copy path into it */
extern int stpn_set(); /* set pathname to string */
extern int stpn_combine(); /* combine to pathnames (for symlink) */
extern int stpn_getcomponent(); /* get next component of pathname */
extern void stpn_skipslash(); /* skip over slashes */
extern void stpn_free(); /* free pathname buffer */
#ifdef __cplusplus
}
#endif
#endif /* _ST_PATHNAME_H */
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