view toys/other/chvt.c @ 694:786841fdb1e0

Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. The actual code should be the same afterward, this is just cosmetic refactoring.
author Rob Landley <>
date Tue, 13 Nov 2012 17:14:08 -0600
parents 6df4ccc0acbe
children bfe79fc710da
line wrap: on
line source

/* chvt.c - switch virtual terminals
 * Copyright (C) 2008 David Anders <>


config CHVT
  bool "chvt"
  default y
    usage: chvt N

    Change to virtual terminal number N. (This only works in text mode.)

    Virtual terminals are the Linux VGA text mode displays, ordinarily
    switched between via alt-F1, alt-F2, etc. Use ctrl-alt-F1 to switch
    from X to a virtual terminal, and alt-F6 (or F7, or F8) to get back.

#include "toys.h"

/* Note: get_console_fb() will need to be moved into a seperate lib section */
int get_console_fd()
  int fd;
  char *consoles[]={"/dev/console", "/dev/vc/0", "/dev/tty", NULL}, **cc;

  cc = consoles;
  while (*cc) {
    fd = open(*cc++, O_RDWR);
    if (fd >= 0) return fd;

  return -1;

void chvt_main(void)
  int vtnum, fd;


  // These numbers are VT_ACTIVATE and VT_WAITACTIVE from linux/vt.h
  if (fd < 0 || ioctl(fd, 0x5606, vtnum) || ioctl(fd, 0x5607, vtnum))