glibc/sysdeps/unix/readdir.c
Roland McGrath bfc04a9ff1 Sun Feb 18 15:08:10 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/posix/utimes.c (__utimes): There are 1000000 usecs in a
	sec.

Sun Feb 18 13:56:00 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* elf/Makefile, time/Makefile: Make `all' the default target.

Mon Feb 19 18:09:04 1996  Roland McGrath  <roland@charlie-brown.gnu.ai.mit.edu>

	* misc/sys/ptrace.h: Moved to ...
	* sysdeps/generic/sys/ptrace.h: ... here.
	* sys/ptrace.h: File removed.

Sun Feb 18 12:13:07 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/Makefile (headers): Add fpu_control.h.

	* sysdeps/unix/sysv/linux/i386/sysdep.S (errno): Put it into .bss
 	so that the symbol alias works.

	* sysdeps/unix/sysv/linux/m68k/fpu_control.h (_FPU_SETCW): Corrected.

	* sysdeps/unix/sysv/linux/resourcebits.h: New file.

	* sysdeps/unix/sysv/linux/sys/ptrace.h: New file.

	* sysdeps/unix/sysv/linux/syscalls.list: Add getegid, geteuid,
	getppid and reboot.

	* sysdeps/unix/sysv/linux/sysconf.c: Special version that does not
	use getdtablesize.

Sat Feb 17 10:30:21 1996  David Mosberger-Tang  <davidm@AZStarNet.com>

	* stdio-common/printf_fp.c, stdlib/strtod.c, sysdeps/ieee754/dbl2mpn.c,
	sysdeps/ieee754/ldbl2mpn.c, sysdeps/ieee754/mpn2dbl.c,
	sysdeps/ieee754/mpn2ldbl.c: Cast left operands of shift instructions
	to `long' where necessary.

Thu Feb 15 20:04:50 1996  Ulrich Drepper  <drepper@gnu.ai.mit.edu>

	* stdlib/fpioconst.h: Introduce new constant _FPIO_CONST_OFFSET.
	* stdio-common/printf_fp.c, stdlib/strtod.c: Use _FPIO_CONST_OFFSET
	to correctly access MPN array depending on architecture.
1996-02-19 23:14:44 +00:00

84 lines
2.3 KiB
C

/* Copyright (C) 1991, 1992, 1993, 1994, 1995 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., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <errno.h>
#include <limits.h>
#include <stddef.h>
#include <string.h>
#include <dirent.h>
#include <unistd.h>
#include <sys/types.h>
#include "direct.h" /* This file defines `struct direct'. */
#include "dirstream.h"
/* direct.h may have an alternate definition for this. */
#ifndef D_RECLEN
#define D_RECLEN(dp) ((dp)->d_reclen)
#endif
/* Read a directory entry from DIRP. */
struct dirent *
DEFUN(readdir, (dirp), DIR *dirp)
{
if (dirp == NULL || dirp->__data == NULL)
{
errno = EINVAL;
return NULL;
}
while (1)
{
struct direct *dp;
if (dirp->__offset >= dirp->__size)
{
/* We've emptied out our buffer. Refill it. */
off_t base;
ssize_t bytes = __getdirentries (dirp->__fd, dirp->__data,
dirp->__allocation, &base);
if (bytes <= 0)
return NULL;
dirp->__size = (size_t) bytes;
/* Reset the offset into the buffer. */
dirp->__offset = 0;
}
dp = (struct direct *) &dirp->__data[dirp->__offset];
dirp->__offset += D_RECLEN (dp);
if (dp->d_ino != 0)
{
/* Not a deleted file. */
register struct dirent *d = &dirp->__entry;
register const char *p;
d->d_fileno = (ino_t) dp->d_ino;
/* On some systems the name length does not actually mean much.
But we always use it as a maximum. */
p = memchr ((PTR) dp->d_name, '\0', D_NAMLEN (dp) + 1);
d->d_namlen = (p != NULL) ? p - dp->d_name : D_NAMLEN (dp);
memcpy (d->d_name, dp->d_name, d->d_namlen + 1);
return d;
}
}
}