| null.c (111758) | null.c (111815) |
|---|---|
| 1/*- 2 * Copyright (c) 2000 Mark R. V. Murray & Jeroen C. van Gelderen 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * | 1/*- 2 * Copyright (c) 2000 Mark R. V. Murray & Jeroen C. van Gelderen 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * |
| 26 * $FreeBSD: head/sys/dev/null/null.c 111758 2003-03-02 19:17:51Z phk $ | 26 * $FreeBSD: head/sys/dev/null/null.c 111815 2003-03-03 12:15:54Z phk $ |
| 27 */ 28 29#include <sys/param.h> 30#include <sys/systm.h> 31#include <sys/conf.h> 32#include <sys/uio.h> 33#include <sys/kernel.h> 34#include <sys/malloc.h> --- 11 unchanged lines hidden (view full) --- 46static d_read_t zero_read; 47static d_read_t null_read; 48 49#define CDEV_MAJOR 2 50#define NULL_MINOR 2 51#define ZERO_MINOR 12 52 53static struct cdevsw null_cdevsw = { | 27 */ 28 29#include <sys/param.h> 30#include <sys/systm.h> 31#include <sys/conf.h> 32#include <sys/uio.h> 33#include <sys/kernel.h> 34#include <sys/malloc.h> --- 11 unchanged lines hidden (view full) --- 46static d_read_t zero_read; 47static d_read_t null_read; 48 49#define CDEV_MAJOR 2 50#define NULL_MINOR 2 51#define ZERO_MINOR 12 52 53static struct cdevsw null_cdevsw = { |
| 54 /* open */ nullopen, 55 /* close */ nullclose, 56 /* read */ null_read, 57 /* write */ null_write, 58 /* ioctl */ null_ioctl, 59 /* poll */ nopoll, 60 /* mmap */ nommap, 61 /* strategy */ nostrategy, 62 /* name */ "null", 63 /* maj */ CDEV_MAJOR, 64 /* dump */ nodump, 65 /* psize */ nopsize, 66 /* flags */ 0, 67 /* kqfilter */ NULL | 54 .d_open = nullopen, 55 .d_close = nullclose, 56 .d_read = null_read, 57 .d_write = null_write, 58 .d_ioctl = null_ioctl, 59 .d_name = "null", 60 .d_maj = CDEV_MAJOR, |
| 68}; 69 70static struct cdevsw zero_cdevsw = { | 61}; 62 63static struct cdevsw zero_cdevsw = { |
| 71 /* open */ nullopen, 72 /* close */ nullclose, 73 /* read */ zero_read, 74 /* write */ null_write, 75 /* ioctl */ noioctl, 76 /* poll */ nopoll, 77 /* mmap */ nommap, 78 /* strategy */ nostrategy, 79 /* name */ "zero", 80 /* maj */ CDEV_MAJOR, 81 /* dump */ nodump, 82 /* psize */ nopsize, 83 /* flags */ D_MMAP_ANON, 84 /* kqfilter */ NULL | 64 .d_open = nullopen, 65 .d_close = nullclose, 66 .d_read = zero_read, 67 .d_write = null_write, 68 .d_name = "zero", 69 .d_maj = CDEV_MAJOR, 70 .d_flags = D_MMAP_ANON, |
| 85}; 86 87static void *zbuf; 88 89static int 90null_read(dev_t dev __unused, struct uio *uio, int flags __unused) 91{ 92 --- 68 unchanged lines hidden --- | 71}; 72 73static void *zbuf; 74 75static int 76null_read(dev_t dev __unused, struct uio *uio, int flags __unused) 77{ 78 --- 68 unchanged lines hidden --- |