mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-20 17:51:16 +00:00
80a18298f0
* dirent/list.c (test): Return error value. (main): Exit with error value. * sysdeps/unix/opendir.c (__opendir): Add missing initialization. * Makefile (distribute): Add test-skeleton.c. * test-skeleton.c: New file. * dirent/Makefile (tests): Add opendir-tst1. * dirent/opendir-tst1.c: New file. 1998-03-18 Ulrich Drepper <drepper@cygnus.com> Optimize memory handling.
94 lines
2.3 KiB
C
94 lines
2.3 KiB
C
/* Copyright (C) 1991, 92, 93, 94, 95, 96, 98 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. */
|
|
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <stddef.h>
|
|
#include <stdlib.h>
|
|
#include <dirent.h>
|
|
#include <fcntl.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
#include <stdio.h>
|
|
|
|
#include <dirstream.h>
|
|
|
|
/* Open a directory stream on NAME. */
|
|
DIR *
|
|
__opendir (const char *name)
|
|
{
|
|
DIR *dirp;
|
|
struct stat statbuf;
|
|
int fd;
|
|
size_t allocation;
|
|
int save_errno;
|
|
|
|
if (name[0] == '\0')
|
|
{
|
|
/* POSIX.1-1990 says an empty name gets ENOENT;
|
|
but `open' might like it fine. */
|
|
__set_errno (ENOENT);
|
|
return NULL;
|
|
}
|
|
|
|
fd = __open (name, O_RDONLY|O_NDELAY);
|
|
if (fd < 0)
|
|
return NULL;
|
|
|
|
if (__fcntl (fd, F_SETFD, FD_CLOEXEC) < 0)
|
|
goto lose;
|
|
|
|
if (fstat (fd, &statbuf) < 0)
|
|
goto lose;
|
|
if (! S_ISDIR (statbuf.st_mode))
|
|
{
|
|
save_errno = ENOTDIR;
|
|
goto lose2;
|
|
}
|
|
|
|
#ifdef _STATBUF_ST_BLKSIZE
|
|
if (statbuf.st_blksize < sizeof (struct dirent))
|
|
allocation = sizeof (struct dirent);
|
|
else
|
|
allocation = statbuf.st_blksize;
|
|
#else
|
|
allocation = (BUFSIZ < sizeof (struct dirent)
|
|
? sizeof (struct dirent) : BUFSIZ);
|
|
#endif
|
|
|
|
dirp = (DIR *) calloc (1, sizeof (DIR) + allocation); /* Zero-fill. */
|
|
if (dirp == NULL)
|
|
lose:
|
|
{
|
|
save_errno = errno;
|
|
lose2:
|
|
(void) __close (fd);
|
|
__set_errno (save_errno);
|
|
return NULL;
|
|
}
|
|
dirp->data = (char *) (dirp + 1);
|
|
dirp->allocation = allocation;
|
|
dirp->fd = fd;
|
|
|
|
__libc_lock_init (dirp->lock);
|
|
|
|
return dirp;
|
|
}
|
|
weak_alias (__opendir, opendir)
|