1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _ST_PATHNAME_H 28 #define _ST_PATHNAME_H 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 /* 35 * Pathname structure. 36 * System calls which operate on path names gather the 37 * pathname from system call into this structure and reduce 38 * it by peeling off translated components. If a symbolic 39 * link is encountered the new pathname to be translated 40 * is also assembled in this structure. 41 */ 42 43 struct st_pathname { 44 char *pn_buf; /* underlying storage */ 45 char *pn_path; /* remaining pathname */ 46 uint_t pn_pathlen; /* remaining length */ 47 }; 48 49 #define PN_STRIP 0x00 /* Strip next component off pn */ 50 #define PN_PEEK 0x01 /* Only peek at next pn component */ 51 #define stpn_peekcomponent(PNP, COMP) stpn_getcomponent(PNP, COMP, PN_PEEK) 52 #define stpn_stripcomponent(PNP, COMP) stpn_getcomponent(PNP, COMP, PN_STRIP) 53 54 #define stpn_peekchar(PNP) (((PNP)->pn_pathlen != 0) ? \ 55 *((PNP)->pn_path) : (char)0) 56 #define stpn_pathleft(PNP) ((PNP)->pn_pathlen) 57 #define stpn_getpath(PNP) ((PNP)->pn_path) 58 #define stpn_copy(PNP1, PNP2) (stpn_set(PNP2, stpn_getpath(PNP1))) 59 60 extern int stpn_alloc(); /* allocate buffer for pathname */ 61 extern int stpn_get(); /* allocate buf and copy path into it */ 62 extern int stpn_set(); /* set pathname to string */ 63 extern int stpn_combine(); /* combine to pathnames (for symlink) */ 64 extern int stpn_getcomponent(); /* get next component of pathname */ 65 extern void stpn_skipslash(); /* skip over slashes */ 66 extern void stpn_free(); /* free pathname buffer */ 67 68 #ifdef __cplusplus 69 } 70 #endif 71 72 #endif /* _ST_PATHNAME_H */ 73