2 * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{linux.intel,addtoit}.com)
3 * Licensed under the GPL
11 #include "chan_user.h"
13 #include <um_malloc.h>
19 char str[sizeof("1234567890\0")];
22 static void *fd_init(char *str, int device, const struct chan_opts *opts)
29 printk(UM_KERN_ERR "fd_init : channel type 'fd' must specify a "
34 n = strtoul(str, &end, 0);
35 if ((*end != '\0') || (end == str)) {
36 printk(UM_KERN_ERR "fd_init : couldn't parse file descriptor "
41 data = uml_kmalloc(sizeof(*data), UM_GFP_KERNEL);
45 *data = ((struct fd_chan) { .fd = n,
50 static int fd_open(int input, int output, int primary, void *d, char **dev_out)
52 struct fd_chan *data = d;
55 if (data->raw && isatty(data->fd)) {
56 CATCH_EINTR(err = tcgetattr(data->fd, &data->tt));
64 sprintf(data->str, "%d", data->fd);
69 static void fd_close(int fd, void *d)
71 struct fd_chan *data = d;
74 if (!data->raw || !isatty(fd))
77 CATCH_EINTR(err = tcsetattr(fd, TCSAFLUSH, &data->tt));
79 printk(UM_KERN_ERR "Failed to restore terminal state - "
80 "errno = %d\n", -err);
84 const struct chan_ops fd_ops = {
90 .write = generic_write,
91 .console_write = generic_console_write,
92 .window_size = generic_window_size,