/* fstat.c -- get status of a file.
 *
 * Copyright (c) 1995 Cygnus Support
 *
 * The authors hereby grant permission to use, copy, modify, distribute,
 * and license this software and its documentation for any purpose, provided
 * that existing copyright notices are retained in all copies and that this
 * notice is included verbatim in any distributions. No written agreement,
 * license, or royalty fee is required for any of the authorized uses.
 * Modifications to this software may be copyrighted by their authors
 * and need not follow the licensing terms described here, provided that
 * the new terms are clearly indicated on the first page of each file where
 * they apply.
 */
#include <errno.h>
#include <string.h>
#include <sys/unistd.h>
#include <sys/kos_io.h>
#include <sys/stat.h>
#include "glue.h"
#include "io.h"

int
_DEFUN (fstat, (fd, buf),
       int fd _AND
       struct stat *buf)
{
    fileinfo_t info;
    struct tm time;

    __io_handle *ioh;

    if( (fd < 0) || (fd >=64) )
    {
        errno = EBADF;
        return (-1);
    };

    memset (buf, 0, sizeof (* buf));

    if (fd <= STDERR_FILENO)
    {
        buf->st_mode = S_IFCHR;
        buf->st_blksize = 0;
    }
    else
    {

        ioh = &__io_tab[fd];
        get_fileinfo(ioh->name, &info);

        if (info.attr & 0x10)
            buf->st_mode = S_IFDIR;
        else
        {
            if (info.attr & 0x07)
                buf->st_mode = S_IFREG|S_IRUSR|S_IXUSR;
            else
                buf->st_mode = S_IFREG|S_IRUSR|S_IWUSR|S_IXUSR;
        }
        buf->st_blksize = 4096;
        buf->st_size  = info.size;

        time.tm_sec   = info.atime.sec;
        time.tm_min   = info.atime.min;
        time.tm_hour  = info.atime.hour;
        time.tm_mday  = info.adate.day;
        time.tm_mon   = info.adate.month;
        time.tm_year  = info.adate.year - 1900;
        time.tm_isdst = -1;
        buf->st_atime = mktime(&time);

        time.tm_sec   = info.ctime.sec;
        time.tm_min   = info.ctime.min;
        time.tm_hour  = info.ctime.hour;
        time.tm_mday  = info.cdate.day;
        time.tm_mon   = info.cdate.month;
        time.tm_year  = info.cdate.year - 1900;
        time.tm_isdst = -1;
        buf->st_ctime = mktime(&time);

        time.tm_sec   = info.mtime.sec;
        time.tm_min   = info.mtime.min;
        time.tm_hour  = info.mtime.hour;
        time.tm_mday  = info.mdate.day;
        time.tm_mon   = info.mdate.month;
        time.tm_year  = info.mdate.year - 1900;
        time.tm_isdst = -1;
        buf->st_mtime = mktime(&time);

    };

    return (0);
}