glibc/dirent/dirent.h
Ulrich Drepper c0e4567461 update from main archive 970201
1997-02-02 00:39  Ulrich Drepper  <drepper@cygnus.com>

	* dirent/dirent.h: Add description _DIRENT_HAVE_D_TYPE.

1997-02-01 17:04  Philip Blundell  <pjb27@cam.ac.uk>

	* inet/netinet/ip.h (MAX_IPOPTLEN): Add definition.

1997-02-01 17:00  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/socketbits.h: Add definition of cmsghdr
	structure plus related macros.
	* sysdeps/unix/sysv/linux/cmsg_nxthdr.c: New file.
	* sysdeps/unix/sysv/linux/Makefile [$(subdir)=socket]
	(sysdep_routines): Add cmsg_nxthdr.
	* sysdeps/unix/sysv/linux/Dist: Add cmsg_nxthdr.c.
	Suggested by Philip Blundell <pjb27@cam.ac.uk>.

1997-02-01 12:34  Ulrich Drepper  <drepper@cygnus.com>

	* time/strftime.c: Define _strftime_copytm without protecting arguments
	which breaks the definition.

1997-02-01 03:31  Thorsten Kukuk  <kukuk@weber.uni-paderborn.de>

	* nis/rpcsvc/yp_prot.h: Move definition of yppushresp_xfr after
	definition of type for element.

1997-02-01 03:28  Philip Blundell  <pjb27@cam.ac.uk>

	* sydsdeps/unix/sysv/linux/netinet/in.h: Add IPv6 related IPPROTO_*
	constants.

1997-02-01 03:09  H.J. Lu  <hjl@lucon.org>

	* Makefile: Pass PARALLELMFLAGS to sub-makes.
	* Makefile.in: Mention PARALLELMFLAGS and pass to main Makefile.

1997-01-31  Paul Eggert  <eggert@twinsun.com>

	* time/mktime.c (HAVE_LIMITS_H, HAVE_LOCALTIME_R, STDC_HEADERS):
	Define if _LIBC is defined.
	<limits.h>: Include if HAVE_LIMITS_H instead of if
	__STDC__ || __GNU_LIBRARY__ || STDC_HEADERS.
	<stdlib.h>: Similarly, include if STDC_HEADERS.
	(localtime_r): Redo #ifdef to make it clear that glibc has
	localtime_r now.

1997-02-29 20:08  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sunrpc/Makefile ($(objpfx)rpcsvc/%.h, $(objpfx)x%.c): Use stamp
	file to avoid unnecessary recompilation.

1997-01-29 19:33  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makefile: Set install-others, not install_others.
	(before-compile): Use += to preserve previous value.
	($(inst_includedir)/gnu/lib-names.h): Remove obsolete comment and
	fix dependency name.
	($(objpfx)lib-names.h): Remove rule.
	* Makeconfig ($(common-objpfx)gnu/lib-names.h): Generate it here,
	with correct name, using an intermediate stamp file.
	(common-generated): Add gnu/lib-names.h.
	(before-compile): Add $(common-objpfx)gnu/lib-names.h.

1997-01-30 18:29  Richard Henderson  <richard@atheist.tamu.edu>

	* malloc/malloc.c (MAGICBYTE): Use cast to size_t instead of unsigned
	to prevent warnings on 64 bit systems.
	Reported by Paul Wouters <paul@xtdnet.nl>.

	* sysdeps/alpha/dl-machine.h: Revert check for broken gas.  By default
	we assume it works.
1997-02-02 01:50:11 +00:00

194 lines
6.3 KiB
C

/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/*
* POSIX Standard: 5.1.2 Directory Operations <dirent.h>
*/
#ifndef _DIRENT_H
#define _DIRENT_H 1
#include <features.h>
__BEGIN_DECLS
#include <gnu/types.h>
/* This file defines `struct dirent'.
It defines the macro `_DIRENT_HAVE_D_NAMLEN' iff there is a `d_namlen'
member that gives the length of `d_name'.
It defines the macro `_DIRENT_HAVE_D_RECLEN' iff there is a `d_reclen'
member that gives the size of the entire directory entry.
It defines the macro `_DIRENT_HAVE_D_OFF' iff there is a `d_off'
member that gives the file offset of the next directory entry.
It defines the macro `_DIRENT_HAVE_D_TYPE' iff there is a `d_type'
member that gives the type of the file.
*/
#include <direntry.h>
#if (defined __USE_BSD || defined __USE_MISC) && !defined d_fileno
# define d_ino d_fileno /* Backward compatibility. */
#endif
/* These macros extract size information from a `struct dirent *'.
They may evaluate their argument multiple times, so it must not
have side effects. Each of these may involve a relatively costly
call to `strlen' on some systems, so these values should be cached.
_D_EXACT_NAMLEN (DP) returns the length of DP->d_name, not including
its terminating null character.
_D_ALLOC_NAMLEN (DP) returns a size at least (_D_EXACT_NAMLEN (DP) + 1);
that is, the allocation size needed to hold the DP->d_name string.
Use this macro when you don't need the exact length, just an upper bound.
This macro is less likely to require calling `strlen' than _D_EXACT_NAMLEN.
*/
#ifdef _DIRENT_HAVE_D_NAMLEN
# define _D_EXACT_NAMLEN(d) ((d)->d_namlen)
# define _D_ALLOC_NAMLEN(d) (_D_EXACT_NAMLEN (d) + 1)
#else
# define _D_EXACT_NAMLEN(d) (strlen ((d)->d_name))
# ifdef _DIRENT_HAVE_D_RECLEN
# define _D_ALLOC_NAMLEN(d) (((char *) (d) + (d)->d_reclen) - &(d)->d_name[0])
# else
# define _D_ALLOC_NAMLEN(d) (sizeof (d)->d_name > 1 ? sizeof (d)->d_name : \
_D_EXACT_NAMLEN (d) + 1)
# endif
#endif
#ifdef __USE_BSD
/* File types for `d_type'. */
enum
{
DT_UNKNOWN = 0,
DT_FIFO = 1,
DT_CHR = 2,
DT_DIR = 4,
DT_BLK = 6,
DT_REG = 8,
DT_LNK = 10,
DT_SOCK = 12
};
/* Convert between stat structure types and directory types. */
# define IFTODT(mode) (((mode) & 0170000) >> 12)
# define DTTOIF(dirtype) ((dirtype) << 12)
#endif
/* This is the data type of directory stream objects.
The actual structure is opaque to users. */
typedef struct __dirstream DIR;
/* Open a directory stream on NAME.
Return a DIR stream on the directory, or NULL if it could not be opened. */
extern DIR *__opendir __P ((__const char *__name));
extern DIR *opendir __P ((__const char *__name));
/* Close the directory stream DIRP.
Return 0 if successful, -1 if not. */
extern int __closedir __P ((DIR *__dirp));
extern int closedir __P ((DIR *__dirp));
/* Read a directory entry from DIRP.
Return a pointer to a `struct dirent' describing the entry,
or NULL for EOF or error. The storage returned may be overwritten
by a later readdir call on the same DIR stream. */
extern struct dirent *__readdir __P ((DIR *__dirp));
extern struct dirent *readdir __P ((DIR *__dirp));
#if defined __USE_POSIX || defined __USE_MISC
/* Reentrant version of `readdir'. Return in RESULT a pointer to the
next entry. */
extern int __readdir_r __P ((DIR *__dirp, struct dirent *__entry,
struct dirent **__result));
extern int readdir_r __P ((DIR *__dirp, struct dirent *__entry,
struct dirent **__result));
#endif /* POSIX or misc */
/* Rewind DIRP to the beginning of the directory. */
extern void rewinddir __P ((DIR *__dirp));
#if defined __USE_BSD || defined __USE_MISC
/* Return the file descriptor used by DIRP. */
extern int dirfd __P ((DIR *__dirp));
# if defined __OPTIMIZE__ && defined _DIR_dirfd
# define dirfd(dirp) _DIR_dirfd (dirp)
# endif
# ifndef MAXNAMLEN
/* Get the definitions of the POSIX.1 limits. */
# include <posix1_lim.h>
/* `MAXNAMLEN' is the BSD name for what POSIX calls `NAME_MAX'. */
# ifdef NAME_MAX
# define MAXNAMLEN NAME_MAX
# else
# define MAXNAMLEN 255
# endif
# endif
# include <gnu/types.h>
# define __need_size_t
# include <stddef.h>
/* Seek to position POS on DIRP. */
extern void seekdir __P ((DIR *__dirp, __off_t __pos));
/* Return the current position of DIRP. */
extern __off_t telldir __P ((DIR *__dirp));
/* Scan the directory DIR, calling SELECTOR on each directory entry.
Entries for which SELECT returns nonzero are individually malloc'd,
sorted using qsort with CMP, and collected in a malloc'd array in
*NAMELIST. Returns the number of entries selected, or -1 on error. */
extern int scandir __P ((__const char *__dir,
struct dirent ***__namelist,
int (*__selector) __P ((struct dirent *)),
int (*__cmp) __P ((__const __ptr_t,
__const __ptr_t))));
/* Function to compare two `struct dirent's alphabetically. */
extern int alphasort __P ((__const __ptr_t, __const __ptr_t));
/* Read directory entries from FD into BUF, reading at most NBYTES.
Reading starts at offset *BASEP, and *BASEP is updated with the new
position after reading. Returns the number of bytes read; zero when at
end of directory; or -1 for errors. */
extern __ssize_t __getdirentries __P ((int __fd, char *__buf,
size_t __nbytes, __off_t *__basep));
extern __ssize_t getdirentries __P ((int __fd, char *__buf,
size_t __nbytes, __off_t *__basep));
#endif /* Use BSD or misc. */
__END_DECLS
#endif /* dirent.h */