ash,hush: bash compat for ulimit: -w => -x, -p => -u

[oweals/busybox.git] / console-tools / chvt.c

diff --git a/console-tools/chvt.c b/console-tools/chvt.c
index bea00ea83accfd67104533275093b11fa04d115c..75380a90b95b4db2750e02dcc3a80baf5df5f314 100644 (file)
--- a/console-tools/chvt.c
+++ b/console-tools/chvt.c
@@ -1,36 +1,34 @@
+/* vi: set sw=4 ts=4: */
 /*
- * chvt.c - aeb - 940227 - Change virtual terminal
+ * Mini chvt implementation for busybox
  *
- * busyboxed by Erik Andersen
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
-#include "internal.h"
-#include <sys/types.h>
-#include <sys/ioctl.h>
-#include <linux/vt.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
+//config:config CHVT
+//config:      bool "chvt (2 kb)"
+//config:      default y
+//config:      select PLATFORM_LINUX
+//config:      help
+//config:      This program is used to change to another terminal.
+//config:      Example: chvt 4 (change to terminal /dev/tty4)
 
-extern int getfd(void);
+//applet:IF_CHVT(APPLET_NOEXEC(chvt, chvt, BB_DIR_USR_BIN, BB_SUID_DROP, chvt))
 
-int
-chvt_main(int argc, char** argv) 
-{
-    int fd, num;
+//kbuild:lib-$(CONFIG_CHVT) += chvt.o
 
-    if ( ( argc != 2) || (**(argv+1) == '-' ) ) {
-       usage ("chvt N\n\nChange foreground virtual terminal to /dev/ttyN\n");
-    }
-    fd = get_console_fd("/dev/console");
-    num = atoi(argv[1]);
-    if (ioctl(fd,VT_ACTIVATE,num)) {
-       perror("VT_ACTIVATE");
-       exit(FALSE);
-    }
-    if (ioctl(fd,VT_WAITACTIVE,num)) {
-       perror("VT_WAITACTIVE");
-       exit(FALSE);
-    }
-    exit( TRUE);
-}
+//usage:#define chvt_trivial_usage
+//usage:       "N"
+//usage:#define chvt_full_usage "\n\n"
+//usage:       "Change the foreground virtual terminal to /dev/ttyN"
 
+#include "libbb.h"
+
+int chvt_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int chvt_main(int argc UNUSED_PARAM, char **argv)
+{
+       int num = xatou_range(single_argv(argv), 1, 63);
+       console_make_active(get_console_fd_or_die(), num);
+       return EXIT_SUCCESS;
+}