2 * Copyright (C) 2001 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL
12 #include "user_util.h"
13 #include "chan_user.h"
15 #include "um_malloc.h"
21 char str[sizeof("1234567890\0")];
24 static void *fd_init(char *str, int device, const struct chan_opts *opts)
31 printk("fd_init : channel type 'fd' must specify a file "
36 n = strtoul(str, &end, 0);
37 if((*end != '\0') || (end == str)){
38 printk("fd_init : couldn't parse file descriptor '%s'\n", str);
41 data = um_kmalloc(sizeof(*data));
42 if(data == NULL) return(NULL);
43 *data = ((struct fd_chan) { .fd = n,
48 static int fd_open(int input, int output, int primary, void *d, char **dev_out)
50 struct fd_chan *data = d;
53 if(data->raw && isatty(data->fd)){
54 CATCH_EINTR(err = tcgetattr(data->fd, &data->tt));
62 sprintf(data->str, "%d", data->fd);
67 static void fd_close(int fd, void *d)
69 struct fd_chan *data = d;
72 if(data->raw && isatty(fd)){
73 CATCH_EINTR(err = tcsetattr(fd, TCSAFLUSH, &data->tt));
75 printk("Failed to restore terminal state - "
76 "errno = %d\n", -err);
81 const struct chan_ops fd_ops = {
87 .write = generic_write,
88 .console_write = generic_console_write,
89 .window_size = generic_window_size,
95 * Overrides for Emacs so that we follow Linus's tabbing style.
96 * Emacs will notice this stuff at the end of the file and automatically
97 * adjust the settings for this buffer only. This must remain at the end
99 * ---------------------------------------------------------------------------
101 * c-file-style: "linux"