diff options
author | Christopher Faylor <me@cgf.cx> | 2000-02-17 22:39:52 +0300 |
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committer | Christopher Faylor <me@cgf.cx> | 2000-02-17 22:39:52 +0300 |
commit | 8a0efa53e44919bcf5ccb1d3353618a82afdf8bc (patch) | |
tree | 68c3dbf3f2c6fd5d49777def9914d77b5cd4589d /newlib/libc/posix/opendir.c | |
parent | 1fd5e000ace55b323124c7e556a7a864b972a5c4 (diff) |
import newlib-2000-02-17 snapshot
Diffstat (limited to 'newlib/libc/posix/opendir.c')
-rw-r--r-- | newlib/libc/posix/opendir.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/newlib/libc/posix/opendir.c b/newlib/libc/posix/opendir.c new file mode 100644 index 000000000..f924c0b52 --- /dev/null +++ b/newlib/libc/posix/opendir.c @@ -0,0 +1,84 @@ +#ifndef HAVE_OPENDIR + +/* + * Copyright (c) 1983 Regents of the University of California. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)opendir.c 5.11 (Berkeley) 2/23/91"; +#endif /* LIBC_SCCS and not lint */ + +#include <dirent.h> +#include <fcntl.h> +#include <stdlib.h> +#include <unistd.h> + +/* + * open a directory. + */ +DIR * +opendir(name) + const char *name; +{ + register DIR *dirp; + register int fd; + + if ((fd = open(name, 0)) == -1) + return NULL; + if (fcntl(fd, F_SETFD, 1) == -1 || + (dirp = (DIR *)malloc(sizeof(DIR))) == NULL) { + close (fd); + return NULL; + } + /* + * If CLSIZE is an exact multiple of DIRBLKSIZ, use a CLSIZE + * buffer that it cluster boundary aligned. + * Hopefully this can be a big win someday by allowing page trades + * to user space to be done by getdirentries() + */ + dirp->dd_buf = malloc (512); + dirp->dd_len = 512; + + if (dirp->dd_buf == NULL) { + close (fd); + return NULL; + } + dirp->dd_fd = fd; + dirp->dd_loc = 0; + dirp->dd_seek = 0; + /* + * Set up seek point for rewinddir. + */ + return dirp; +} + +#endif /* ! HAVE_OPENDIR */ |