1 // SPDX-License-Identifier: CDDL-1.0 2 /* 3 * CDDL HEADER START 4 * 5 * The contents of this file are subject to the terms of the 6 * Common Development and Distribution License (the "License"). 7 * You may not use this file except in compliance with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or https://opensource.org/licenses/CDDL-1.0. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 23 /* 24 * Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved. 25 */ 26 27 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 /* 31 * Portions of this source code were derived from Berkeley 4.3 BSD 32 * under license from the Regents of the University of California. 33 */ 34 35 #ifndef _SYS_PATHNAME_H 36 #define _SYS_PATHNAME_H 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 /* 43 * Pathname structure. 44 * System calls that operate on path names gather the path name 45 * from the system call into this structure and reduce it by 46 * peeling off translated components. If a symbolic link is 47 * encountered the new path name to be translated is also 48 * assembled in this structure. 49 * 50 * By convention pn_buf is not changed once it's been set to point 51 * to the underlying storage; routines which manipulate the pathname 52 * do so by changing pn_path and pn_pathlen. pn_pathlen is redundant 53 * since the path name is null-terminated, but is provided to make 54 * some computations faster. 55 */ 56 typedef struct pathname { 57 char *pn_buf; /* underlying storage */ 58 size_t pn_bufsize; /* total size of pn_buf */ 59 } pathname_t; 60 61 extern void pn_alloc(struct pathname *); 62 extern void pn_alloc_sz(struct pathname *, size_t); 63 extern void pn_free(struct pathname *); 64 65 #ifdef __cplusplus 66 } 67 #endif 68 69 #endif /* _SYS_PATHNAME_H */ 70