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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152// SPDX-License-Identifier: GPL-2.0/* * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{linux.intel,addtoit}.com) */
#include <stddef.h>#include <errno.h>#include <fcntl.h>#include "chan_user.h"#include <os.h>
/* This address is used only as a unique identifier */static int null_chan;
static void *null_init(char *str, int device, const struct chan_opts *opts){ return &null_chan;}
static int null_open(int input, int output, int primary, void *d, char **dev_out){ int fd;
*dev_out = NULL;
fd = open(DEV_NULL, O_RDWR); return (fd < 0) ? -errno : fd;}
static int null_read(int fd, __u8 *c_out, void *unused){ return -ENODEV;}
static void null_free(void *data){}
const struct chan_ops null_ops = { .type = "null", .init = null_init, .open = null_open, .close = generic_close, .read = null_read, .write = generic_write, .console_write = generic_console_write, .window_size = generic_window_size, .free = null_free, .winch = 0,};