home *** CD-ROM | disk | FTP | other *** search
- /* system-dependent definitions for fileutils programs.
- Copyright (C) 1989, 1990 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 1, or (at your option)
- any later version.
-
- This program 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* Include sys/types.h before this file. */
-
- /* MS-DOS port (c) 1990 by Thorsten Ohl, ohl@gnu.ai.mit.edu
- This port is also distributed under the terms of the
- GNU General Public License as published by the
- Free Software Foundation.
-
- Please note that this file is not identical to the
- original GNU release, you should have received this
- code as patch to the official release.
-
- $Header: e:/gnu/fileutil/RCS/system.h 1.4.0.2 90/09/19 12:27:45 tho Exp $
- */
-
- #include <sys/stat.h>
-
- #ifdef _POSIX_SOURCE
- #include <unistd.h>
- #include <limits.h>
- #else
-
- #ifdef USG
- #ifdef MSDOS
- #include <time.h>
- #else /* not MSDOS */
- #include <sys/times.h>
- #endif /* not MSDOS */
- #else
- #include <sys/time.h>
- #endif
-
- #ifndef MSDOS
- #include <sys/param.h>
- #endif /* not MSDOS */
- #define _POSIX_PATH_MAX 255
- #define _POSIX_NAME_MAX 14
-
- #ifndef PATH_MAX
- #ifdef MAXPATHLEN
- #define PATH_MAX MAXPATHLEN
- #else
- #define PATH_MAX _POSIX_PATH_MAX
- #endif
- #endif
-
- #ifndef NAME_MAX
- #ifdef MAXNAMLEN
- #define NAME_MAX MAXNAMLEN
- #else
- #define NAME_MAX _POSIX_NAME_MAX
- #endif
- #endif
-
- #endif
-
- /* Filesystem device blocksize. */
- #ifndef DEV_BSIZE
- #ifdef BSIZE
- #define DEV_BSIZE BSIZE
- #else
- #define DEV_BSIZE 512
- #endif
- #endif
-
- #ifdef _POSIX_SOURCE
- #define major(dev) (((dev) >> 8) & 0xff)
- #define minor(dev) ((dev) & 0xff)
- #define makedev(maj, min) (((maj) << 8) | (min))
- #else
- #ifdef USG
- #ifdef MSDOS
- #define major(dev) (((dev) >> 8) & 0xff)
- #define minor(dev) ((dev) & 0xff)
- #else /* not MSDOS */
- #include <sys/sysmacros.h>
- #endif /* not MSDOS */
- #endif
- #endif
-
- #ifdef _POSIX_SOURCE
- #include <utime.h>
- #else
- struct utimbuf
- {
- long actime;
- long modtime;
- };
- #ifdef MSDOS
- int utime(char *, struct utimbuf *);
- #endif /* MSDOS */
- #endif
-
- #if defined(USG) || defined(STDC_HEADERS)
- #include <string.h>
- #define index strchr
- #define rindex strrchr
- #define bcopy(from, to, len) memcpy ((to), (from), (len))
- #define bzero(s, n) memset ((s), 0, (n))
- #endif
-
- #if defined(USG) || defined(_POSIX_SOURCE)
- #ifndef _POSIX_SOURCE
- /* Args for access. */
- #define F_OK 0
- #define X_OK 1
- #define W_OK 2
- #define R_OK 4
-
- char *getcwd ();
- #endif
- #define getwd(buf) getcwd ((buf), PATH_MAX + 2)
-
- /* Args for lseek. */
- #define L_SET 0
- #define L_INCR 1
- #define L_XTND 2
- #else
- #include <strings.h>
- #include <sys/file.h>
-
- char *getwd ();
- #endif
-
- #include <fcntl.h>
-
- #ifdef DIRENT
- #include <dirent.h>
- #ifdef direct
- #undef direct
- #endif
- #define direct dirent
- #define NLENGTH(direct) (strlen((direct)->d_name))
- #else
- #define NLENGTH(direct) ((direct)->d_namlen)
- #ifdef USG
- #ifdef SYSNDIR
- #include <sys/ndir.h>
- #else
- #include <ndir.h>
- #endif
- #else /* must be BSD */
- #include <sys/dir.h>
- #endif
- #endif
-
-
- #ifdef MSDOS
-
- #define ST_BLKSIZE(statbuf) BLKSIZE
- #define ST_NBLOCKS(statbuf) (((statbuf).st_size + DEV_BSIZE - 1) / DEV_BSIZE)
-
- #else /* not MSDOS */
-
- /* Extract data from a `struct stat'.
- ST_BLKSIZE: Optimal I/O blocksize for the file.
- ST_NBLOCKS: Number of blocks in the file (including indirect blocks). */
- #ifdef _POSIX_SOURCE
- #define ST_BLKSIZE(statbuf) DEV_BSIZE
- #define ST_NBLOCKS(statbuf) (((statbuf).st_size + DEV_BSIZE - 1) / DEV_BSIZE)
- #else
- #ifdef STBLOCKS_MISSING
- #define ST_BLKSIZE(statbuf) DEV_BSIZE
- #define ST_NBLOCKS(statbuf) (st_blocks ((statbuf).st_size))
- #else
- /* Some systems, like Sequents, return st_blksize of 0 on pipes. */
- #define ST_BLKSIZE(statbuf) ((statbuf).st_blksize > 0 \
- ? (statbuf).st_blksize : DEV_BSIZE)
- #define ST_NBLOCKS(statbuf) ((statbuf).st_blocks)
- #endif
- #endif
-
- #endif /* not MSDOS */
-
- /* Convert B blocks of DEV_BSIZE bytes
- to kilobytes if K is nonzero, otherwise to blocks of 512 bytes. */
-
- #if DEV_BSIZE == 512
- #define convert_blocks(b, k) ((k) ? ((b) + 1) / 2 : (b))
- #else
- #if DEV_BSIZE == 1024
- #define convert_blocks(b, k) ((k) ? (b) : (b) * 2)
- #else
- #define convert_blocks(b, k) ((k) \
- ? ((b) * DEV_BSIZE + 1023) / 1024 \
- : ((b) * DEV_BSIZE + 511) / 512)
- #endif
- #endif
-
- #ifndef S_IFLNK
- #define lstat stat
- #endif
-
- #ifndef SIGTYPE
- #define SIGTYPE void
- #endif
-
- #ifdef __GNUC__
- #define alloca __builtin_alloca
- #else
- #ifdef sparc
- #include <alloca.h>
- #else
- #ifdef MSDOS
- #include <malloc.h>
- #else
- char *alloca ();
- #endif
- #endif
- #endif
-