usr/src/sys.386bsd/stand/stat.c

/*-
 * Copyright (c) 1991 The 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.
 *
 *      @(#)stat.c      7.1 (Berkeley) 5/5/91
 */

#include <sys/param.h>
#include <sys/stat.h>
#include "saio.h"

#ifndef SMALL
fstat(fd, sb)
        int fd;
        struct stat *sb;
{
        register struct iob *io;

        fd -= 3;
        if (fd < 0 || fd >= SOPEN_MAX ||
            ((io = &iob[fd])->i_flgs & F_ALLOC) == 0) {
                errno = EBADF;
                return (-1);
        }
        /* only important stuff */
        sb->st_mode = io->i_ino.di_mode;
        sb->st_uid = io->i_ino.di_uid;
        sb->st_gid = io->i_ino.di_gid;
        sb->st_size = io->i_ino.di_size;
        return (0);
}

stat(str, sb)
        const char *str;
        struct stat *sb;
{
        int fd, rv;

        fd = open(str, 0);
        if (fd < 0)
                return(-1);
        rv = fstat(fd, sb);
        close(fd);
        return(rv);
}
#endif SMALL