diff options
Diffstat (limited to 'include/sys/pathname.h')
| -rw-r--r-- | include/sys/pathname.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/include/sys/pathname.h b/include/sys/pathname.h new file mode 100644 index 000000000..5db69b178 --- /dev/null +++ b/include/sys/pathname.h @@ -0,0 +1,70 @@ +/* + * 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 */ + char *pn_path; /* remaining pathname */ + size_t pn_pathlen; /* remaining length */ + 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 */ |