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 https://opensource.org/licenses/CDDL-1.0. 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 (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved. 24 */ 25 26 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 27 /* All Rights Reserved */ 28 29 /* 30 * Portions of this source code were derived from Berkeley 4.3 BSD 31 * under license from the Regents of the University of California. 32 */ 33 34 #ifndef _SYS_PATHNAME_H 35 #define _SYS_PATHNAME_H 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 /* 42 * Pathname structure. 43 * System calls that operate on path names gather the path name 44 * from the system call into this structure and reduce it by 45 * peeling off translated components. If a symbolic link is 46 * encountered the new path name to be translated is also 47 * assembled in this structure. 48 * 49 * By convention pn_buf is not changed once it's been set to point 50 * to the underlying storage; routines which manipulate the pathname 51 * do so by changing pn_path and pn_pathlen. pn_pathlen is redundant 52 * since the path name is null-terminated, but is provided to make 53 * some computations faster. 54 */ 55 typedef struct pathname { 56 char *pn_buf; /* underlying storage */ 57 size_t pn_bufsize; /* total size of pn_buf */ 58 } pathname_t; 59 60 extern void pn_alloc(struct pathname *); 61 extern void pn_alloc_sz(struct pathname *, size_t); 62 extern void pn_free(struct pathname *); 63 64 #ifdef __cplusplus 65 } 66 #endif 67 68 #endif /* _SYS_PATHNAME_H */ 69