17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5289b68b2Sraf * Common Development and Distribution License (the "License").
6289b68b2Sraf * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate *
87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate * and limitations under the License.
127c478bd9Sstevel@tonic-gate *
137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate *
197c478bd9Sstevel@tonic-gate * CDDL HEADER END
207c478bd9Sstevel@tonic-gate */
21289b68b2Sraf
227c478bd9Sstevel@tonic-gate /*
23ba3594baSGarrett D'Amore * Copyright 2014 Garrett D'Amore <garrett@damore.org>
24ba3594baSGarrett D'Amore *
25289b68b2Sraf * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
267c478bd9Sstevel@tonic-gate * Use is subject to license terms.
277c478bd9Sstevel@tonic-gate */
287c478bd9Sstevel@tonic-gate
297c478bd9Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */
30*6e270ca8SMarcel Telka /* All Rights Reserved */
317c478bd9Sstevel@tonic-gate
327c478bd9Sstevel@tonic-gate #ifndef _DIRENT_H
337c478bd9Sstevel@tonic-gate #define _DIRENT_H
347c478bd9Sstevel@tonic-gate
357c478bd9Sstevel@tonic-gate #include <sys/feature_tests.h>
367c478bd9Sstevel@tonic-gate
377c478bd9Sstevel@tonic-gate #include <sys/types.h>
387c478bd9Sstevel@tonic-gate #include <sys/dirent.h>
397c478bd9Sstevel@tonic-gate
407c478bd9Sstevel@tonic-gate #ifdef __cplusplus
417c478bd9Sstevel@tonic-gate extern "C" {
427c478bd9Sstevel@tonic-gate #endif
437c478bd9Sstevel@tonic-gate
447c478bd9Sstevel@tonic-gate #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)
457c478bd9Sstevel@tonic-gate
467c478bd9Sstevel@tonic-gate #define MAXNAMLEN 512 /* maximum filename length */
477c478bd9Sstevel@tonic-gate #define DIRBUF 8192 /* buffer size for fs-indep. dirs */
487c478bd9Sstevel@tonic-gate
497c478bd9Sstevel@tonic-gate #endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) */
507c478bd9Sstevel@tonic-gate
517c478bd9Sstevel@tonic-gate #if !defined(__XOPEN_OR_POSIX)
527c478bd9Sstevel@tonic-gate
537c478bd9Sstevel@tonic-gate typedef struct {
547c478bd9Sstevel@tonic-gate int dd_fd; /* file descriptor */
557c478bd9Sstevel@tonic-gate int dd_loc; /* offset in block */
567c478bd9Sstevel@tonic-gate int dd_size; /* amount of valid data */
577c478bd9Sstevel@tonic-gate char *dd_buf; /* directory block */
587c478bd9Sstevel@tonic-gate } DIR; /* stream data from opendir() */
597c478bd9Sstevel@tonic-gate
607c478bd9Sstevel@tonic-gate
617c478bd9Sstevel@tonic-gate #else
627c478bd9Sstevel@tonic-gate
637c478bd9Sstevel@tonic-gate typedef struct {
647c478bd9Sstevel@tonic-gate int d_fd; /* file descriptor */
657c478bd9Sstevel@tonic-gate int d_loc; /* offset in block */
667c478bd9Sstevel@tonic-gate int d_size; /* amount of valid data */
677c478bd9Sstevel@tonic-gate char *d_buf; /* directory block */
687c478bd9Sstevel@tonic-gate } DIR; /* stream data from opendir() */
697c478bd9Sstevel@tonic-gate
707c478bd9Sstevel@tonic-gate #endif /* !defined(__XOPEN_OR_POSIX) */
717c478bd9Sstevel@tonic-gate
727c478bd9Sstevel@tonic-gate /* large file compilation environment setup */
737c478bd9Sstevel@tonic-gate #if !defined(_LP64) && _FILE_OFFSET_BITS == 64
747c478bd9Sstevel@tonic-gate #ifdef __PRAGMA_REDEFINE_EXTNAME
757c478bd9Sstevel@tonic-gate #pragma redefine_extname readdir readdir64
767c478bd9Sstevel@tonic-gate #pragma redefine_extname scandir scandir64
777c478bd9Sstevel@tonic-gate #pragma redefine_extname alphasort alphasort64
787c478bd9Sstevel@tonic-gate #else
797c478bd9Sstevel@tonic-gate #define readdir readdir64
807c478bd9Sstevel@tonic-gate #define scandir scandir64
817c478bd9Sstevel@tonic-gate #define alphasort alphasort64
827c478bd9Sstevel@tonic-gate #endif
837c478bd9Sstevel@tonic-gate #endif /* _FILE_OFFSET_BITS == 64 */
847c478bd9Sstevel@tonic-gate
857c478bd9Sstevel@tonic-gate /* In the LP64 compilation environment, all APIs are already large file */
867c478bd9Sstevel@tonic-gate #if defined(_LP64) && defined(_LARGEFILE64_SOURCE)
877c478bd9Sstevel@tonic-gate #ifdef __PRAGMA_REDEFINE_EXTNAME
887c478bd9Sstevel@tonic-gate #pragma redefine_extname readdir64 readdir
897c478bd9Sstevel@tonic-gate #pragma redefine_extname scandir64 scandir
907c478bd9Sstevel@tonic-gate #pragma redefine_extname alphasort64 alphasort
917c478bd9Sstevel@tonic-gate #else
927c478bd9Sstevel@tonic-gate #define readdir64 readdir
937c478bd9Sstevel@tonic-gate #define scandir64 scandir
947c478bd9Sstevel@tonic-gate #define alphsort64 alphasort
957c478bd9Sstevel@tonic-gate #endif
967c478bd9Sstevel@tonic-gate #endif /* _LP64 && _LARGEFILE64_SOURCE */
977c478bd9Sstevel@tonic-gate
987c478bd9Sstevel@tonic-gate extern DIR *opendir(const char *);
997c478bd9Sstevel@tonic-gate #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) || \
1007c478bd9Sstevel@tonic-gate defined(_ATFILE_SOURCE)
1017c478bd9Sstevel@tonic-gate extern DIR *fdopendir(int);
102289b68b2Sraf extern int dirfd(DIR *);
1037c478bd9Sstevel@tonic-gate #endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) ... */
1047c478bd9Sstevel@tonic-gate #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)
1057c478bd9Sstevel@tonic-gate extern int scandir(const char *, struct dirent *(*[]),
1067c478bd9Sstevel@tonic-gate int (*)(const struct dirent *),
1077c478bd9Sstevel@tonic-gate int (*)(const struct dirent **,
1087c478bd9Sstevel@tonic-gate const struct dirent **));
1097c478bd9Sstevel@tonic-gate extern int alphasort(const struct dirent **,
1107c478bd9Sstevel@tonic-gate const struct dirent **);
1117c478bd9Sstevel@tonic-gate #endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) */
1127c478bd9Sstevel@tonic-gate extern struct dirent *readdir(DIR *);
1137c478bd9Sstevel@tonic-gate #if defined(__EXTENSIONS__) || !defined(_POSIX_C_SOURCE) || \
1147c478bd9Sstevel@tonic-gate defined(_XOPEN_SOURCE)
1157c478bd9Sstevel@tonic-gate extern long telldir(DIR *);
1167c478bd9Sstevel@tonic-gate extern void seekdir(DIR *, long);
1177c478bd9Sstevel@tonic-gate #endif /* defined(__EXTENSIONS__) || !defined(_POSIX_C_SOURCE) ... */
1187c478bd9Sstevel@tonic-gate extern void rewinddir(DIR *);
1197c478bd9Sstevel@tonic-gate extern int closedir(DIR *);
1207c478bd9Sstevel@tonic-gate
1217c478bd9Sstevel@tonic-gate /* transitional large file interface */
1227c478bd9Sstevel@tonic-gate #if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
1237c478bd9Sstevel@tonic-gate !defined(__PRAGMA_REDEFINE_EXTNAME))
1247c478bd9Sstevel@tonic-gate extern struct dirent64 *readdir64(DIR *);
1257c478bd9Sstevel@tonic-gate #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)
1267c478bd9Sstevel@tonic-gate extern int scandir64(const char *, struct dirent64 *(*[]),
1277c478bd9Sstevel@tonic-gate int (*)(const struct dirent64 *),
1287c478bd9Sstevel@tonic-gate int (*)(const struct dirent64 **,
1297c478bd9Sstevel@tonic-gate const struct dirent64 **));
1307c478bd9Sstevel@tonic-gate extern int alphasort64(const struct dirent64 **, const struct dirent64 **);
1317c478bd9Sstevel@tonic-gate #endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) */
1327c478bd9Sstevel@tonic-gate #endif
1337c478bd9Sstevel@tonic-gate
1347c478bd9Sstevel@tonic-gate #if defined(__EXTENSIONS__) || !defined(_POSIX_C_SOURCE) || \
1357c478bd9Sstevel@tonic-gate defined(_XOPEN_SOURCE)
1367c478bd9Sstevel@tonic-gate #define rewinddir(dirp) seekdir(dirp, 0L)
1377c478bd9Sstevel@tonic-gate #endif
1387c478bd9Sstevel@tonic-gate
1397c478bd9Sstevel@tonic-gate /*
1407c478bd9Sstevel@tonic-gate * readdir_r() prototype is defined here.
1417c478bd9Sstevel@tonic-gate *
1427c478bd9Sstevel@tonic-gate * There are several variations, depending on whether compatibility with old
1437c478bd9Sstevel@tonic-gate * POSIX draft specifications or the final specification is desired and on
1447c478bd9Sstevel@tonic-gate * whether the large file compilation environment is active. To combat a
1457c478bd9Sstevel@tonic-gate * combinatorial explosion, enabling large files implies using the final
1467c478bd9Sstevel@tonic-gate * specification (since the definition of the large file environment
1477c478bd9Sstevel@tonic-gate * considerably postdates that of the final readdir_r specification).
1487c478bd9Sstevel@tonic-gate *
1497c478bd9Sstevel@tonic-gate * In the LP64 compilation environment, all APIs are already large file,
1507c478bd9Sstevel@tonic-gate * and since there are no 64-bit applications that can have seen the
1517c478bd9Sstevel@tonic-gate * draft implementation, again, we use the final POSIX specification.
1527c478bd9Sstevel@tonic-gate */
1537c478bd9Sstevel@tonic-gate
1547c478bd9Sstevel@tonic-gate #if defined(__EXTENSIONS__) || defined(_REENTRANT) || \
1557c478bd9Sstevel@tonic-gate !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE - 0 >= 199506L) || \
1567c478bd9Sstevel@tonic-gate defined(_POSIX_PTHREAD_SEMANTICS)
1577c478bd9Sstevel@tonic-gate
1587c478bd9Sstevel@tonic-gate #if !defined(_LP64) && _FILE_OFFSET_BITS == 32
1597c478bd9Sstevel@tonic-gate
1607c478bd9Sstevel@tonic-gate #if (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)
1617c478bd9Sstevel@tonic-gate
1627c478bd9Sstevel@tonic-gate #ifdef __PRAGMA_REDEFINE_EXTNAME
1637c478bd9Sstevel@tonic-gate #pragma redefine_extname readdir_r __posix_readdir_r
1647c478bd9Sstevel@tonic-gate extern int readdir_r(DIR *_RESTRICT_KYWD, struct dirent *_RESTRICT_KYWD,
1657c478bd9Sstevel@tonic-gate struct dirent **_RESTRICT_KYWD);
1667c478bd9Sstevel@tonic-gate #else /* __PRAGMA_REDEFINE_EXTNAME */
1677c478bd9Sstevel@tonic-gate
1687c478bd9Sstevel@tonic-gate extern int __posix_readdir_r(DIR *_RESTRICT_KYWD,
1697c478bd9Sstevel@tonic-gate struct dirent *_RESTRICT_KYWD, struct dirent **_RESTRICT_KYWD);
1707c478bd9Sstevel@tonic-gate
1717c478bd9Sstevel@tonic-gate #ifdef __lint
1727c478bd9Sstevel@tonic-gate #define readdir_r __posix_readdir_r
1737c478bd9Sstevel@tonic-gate #else /* !__lint */
1747c478bd9Sstevel@tonic-gate
1757c478bd9Sstevel@tonic-gate static int
readdir_r(DIR * _RESTRICT_KYWD __dp,struct dirent * _RESTRICT_KYWD __ent,struct dirent ** _RESTRICT_KYWD __res)1767c478bd9Sstevel@tonic-gate readdir_r(DIR *_RESTRICT_KYWD __dp, struct dirent *_RESTRICT_KYWD __ent,
177*6e270ca8SMarcel Telka struct dirent **_RESTRICT_KYWD __res)
178*6e270ca8SMarcel Telka {
1797c478bd9Sstevel@tonic-gate return (__posix_readdir_r(__dp, __ent, __res));
1807c478bd9Sstevel@tonic-gate }
1817c478bd9Sstevel@tonic-gate
1827c478bd9Sstevel@tonic-gate #endif /* !__lint */
1837c478bd9Sstevel@tonic-gate #endif /* __PRAGMA_REDEFINE_EXTNAME */
1847c478bd9Sstevel@tonic-gate
1857c478bd9Sstevel@tonic-gate #else /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
1867c478bd9Sstevel@tonic-gate
1877c478bd9Sstevel@tonic-gate extern struct dirent *readdir_r(DIR *__dp, struct dirent *__ent);
1887c478bd9Sstevel@tonic-gate
1897c478bd9Sstevel@tonic-gate #endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
1907c478bd9Sstevel@tonic-gate
1917c478bd9Sstevel@tonic-gate #else /* !_LP64 && _FILE_OFFSET_BITS == 32 */
1927c478bd9Sstevel@tonic-gate
1937c478bd9Sstevel@tonic-gate #if defined(_LP64)
1947c478bd9Sstevel@tonic-gate #ifdef __PRAGMA_REDEFINE_EXTNAME
1957c478bd9Sstevel@tonic-gate #pragma redefine_extname readdir64_r readdir_r
1967c478bd9Sstevel@tonic-gate #else
1977c478bd9Sstevel@tonic-gate #define readdir64_r readdir_r
1987c478bd9Sstevel@tonic-gate #endif
1997c478bd9Sstevel@tonic-gate #else /* _LP64 */
2007c478bd9Sstevel@tonic-gate #ifdef __PRAGMA_REDEFINE_EXTNAME
2017c478bd9Sstevel@tonic-gate #pragma redefine_extname readdir_r readdir64_r
2027c478bd9Sstevel@tonic-gate #else
2037c478bd9Sstevel@tonic-gate #define readdir_r readdir64_r
2047c478bd9Sstevel@tonic-gate #endif
2057c478bd9Sstevel@tonic-gate #endif /* _LP64 */
2067c478bd9Sstevel@tonic-gate extern int readdir_r(DIR *_RESTRICT_KYWD, struct dirent *_RESTRICT_KYWD,
2077c478bd9Sstevel@tonic-gate struct dirent **_RESTRICT_KYWD);
2087c478bd9Sstevel@tonic-gate
2097c478bd9Sstevel@tonic-gate #endif /* !_LP64 && _FILE_OFFSET_BITS == 32 */
2107c478bd9Sstevel@tonic-gate
2117c478bd9Sstevel@tonic-gate #if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
2127c478bd9Sstevel@tonic-gate !defined(__PRAGMA_REDEFINE_EXTNAME))
2137c478bd9Sstevel@tonic-gate /* transitional large file interface */
2147c478bd9Sstevel@tonic-gate extern int readdir64_r(DIR *_RESTRICT_KYWD, struct dirent64 *_RESTRICT_KYWD,
2157c478bd9Sstevel@tonic-gate struct dirent64 **_RESTRICT_KYWD);
2167c478bd9Sstevel@tonic-gate #endif
2177c478bd9Sstevel@tonic-gate
2187c478bd9Sstevel@tonic-gate #endif /* defined(__EXTENSIONS__) || defined(_REENTRANT)... */
2197c478bd9Sstevel@tonic-gate
2207c478bd9Sstevel@tonic-gate #ifdef __cplusplus
2217c478bd9Sstevel@tonic-gate }
2227c478bd9Sstevel@tonic-gate #endif
2237c478bd9Sstevel@tonic-gate
2247c478bd9Sstevel@tonic-gate #endif /* _DIRENT_H */
225