mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-23 11:18:54 +00:00
99 lines
3.2 KiB
C
99 lines
3.2 KiB
C
/* Definitions for communicating with a remote tape drive.
|
|
Copyright (C) 1988, 1992 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 2, 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. */
|
|
|
|
#ifdef HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
#if !defined(_POSIX_VERSION)
|
|
#ifdef __MSDOS__
|
|
#include <io.h>
|
|
#else /* !__MSDOS__ */
|
|
extern off_t lseek ();
|
|
#endif /* __MSDOS__ */
|
|
#endif /* _POSIX_VERSION */
|
|
|
|
#ifdef NO_REMOTE
|
|
#define _isrmt(f) 0
|
|
#define rmtopen open
|
|
#define rmtaccess access
|
|
#define rmtstat stat
|
|
#define rmtcreat creat
|
|
#define rmtlstat lstat
|
|
#define rmtread read
|
|
#define rmtwrite write
|
|
#define rmtlseek lseek
|
|
#define rmtclose close
|
|
#define rmtioctl ioctl
|
|
#define rmtdup dup
|
|
#define rmtfstat fstat
|
|
#define rmtfcntl fcntl
|
|
#define rmtisatty isatty
|
|
|
|
#else /* !NO_REMOTE */
|
|
|
|
#define __REM_BIAS 128
|
|
#define RMTIOCTL
|
|
|
|
#ifndef O_CREAT
|
|
#define O_CREAT 01000
|
|
#endif
|
|
|
|
extern char *__rmt_path;
|
|
|
|
#if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
|
|
#include <string.h>
|
|
#ifndef index
|
|
#define index strchr
|
|
#endif
|
|
#else
|
|
extern char *index ();
|
|
#endif
|
|
|
|
#define _remdev(path) (!f_force_local && (__rmt_path=index(path, ':')))
|
|
#define _isrmt(fd) ((fd) >= __REM_BIAS)
|
|
|
|
#define rmtopen(path,oflag,mode) (_remdev(path) ? __rmt_open(path, oflag, mode, __REM_BIAS) : open(path, oflag, mode))
|
|
#define rmtaccess(path, amode) (_remdev(path) ? 0 : access(path, amode))
|
|
#define rmtstat(path, buf) (_remdev(path) ? (errno = EOPNOTSUPP), -1 : stat(path, buf))
|
|
#define rmtcreat(path, mode) (_remdev(path) ? __rmt_open (path, 1 | O_CREAT, mode, __REM_BIAS) : creat(path, mode))
|
|
#define rmtlstat(path,buf) (_remdev(path) ? (errno = EOPNOTSUPP), -1 : lstat(path,buf))
|
|
|
|
#define rmtread(fd, buf, n) (_isrmt(fd) ? __rmt_read(fd - __REM_BIAS, buf, n) : read(fd, buf, n))
|
|
#define rmtwrite(fd, buf, n) (_isrmt(fd) ? __rmt_write(fd - __REM_BIAS, buf, n) : write(fd, buf, n))
|
|
#define rmtlseek(fd, off, wh) (_isrmt(fd) ? __rmt_lseek(fd - __REM_BIAS, off, wh) : lseek(fd, off, wh))
|
|
#define rmtclose(fd) (_isrmt(fd) ? __rmt_close(fd - __REM_BIAS) : close(fd))
|
|
#ifdef RMTIOCTL
|
|
#define rmtioctl(fd,req,arg) (_isrmt(fd) ? __rmt_ioctl(fd - __REM_BIAS, req, arg) : ioctl(fd, req, arg))
|
|
#else
|
|
#define rmtioctl(fd,req,arg) (_isrmt(fd) ? (errno = EOPNOTSUPP), -1 : ioctl(fd, req, arg))
|
|
#endif
|
|
#define rmtdup(fd) (_isrmt(fd) ? (errno = EOPNOTSUPP), -1 : dup(fd))
|
|
#define rmtfstat(fd, buf) (_isrmt(fd) ? (errno = EOPNOTSUPP), -1 : fstat(fd, buf))
|
|
#define rmtfcntl(fd,cmd,arg) (_isrmt(fd) ? (errno = EOPNOTSUPP), -1 : fcntl (fd, cmd, arg))
|
|
#define rmtisatty(fd) (_isrmt(fd) ? 0 : isatty(fd))
|
|
|
|
#undef RMTIOCTL
|
|
|
|
int __rmt_open ();
|
|
int __rmt_close ();
|
|
int __rmt_read ();
|
|
int __rmt_write ();
|
|
long __rmt_lseek ();
|
|
int __rmt_ioctl ();
|
|
#endif /* !NO_REMOTE */
|