/* vi: set sw=4 ts=4: */
/*
- * disalloc.c - aeb - 940501 - Disallocate virtual terminal(s)
- * Renamed deallocvt.
+ * Disallocate virtual terminal(s)
+ *
+ * Copyright (C) 2003 by Tito Ragusa <farmatito@tiscali.it>
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+
+/* no options, no getopt */
+
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
int deallocvt_main(int argc, char *argv[])
{
- int fd, num=0;
-
- if (argc > 2)
- bb_show_usage();
-
- fd = get_console_fd();
-
- /* num=0 deallocate all unused consoles */
- if (argc == 1)
- goto disallocate_all;
+ /* num = 0 deallocate all unused consoles */
+ int num = 0;
- num=bb_xgetlarg(argv[1], 10, 0, INT_MAX);
-
- switch(num)
+ switch(argc)
{
- case 0:
- bb_error_msg("0: illegal VT number");
- break;
+ case 2:
+ if((num = bb_xgetlarg(argv[1], 10, 0, INT_MAX)) == 0)
+ bb_error_msg_and_die("0: illegal VT number");
+ /* Fallthrough */
case 1:
- bb_error_msg("VT 1 cannot be deallocated");
break;
default:
-disallocate_all:
- if (ioctl(fd, VT_DISALLOCATE, num))
- bb_perror_msg_and_die("VT_DISALLOCATE");
- return EXIT_SUCCESS;
+ bb_show_usage();
+ }
+
+ if (-1 == ioctl( get_console_fd(), VT_DISALLOCATE, num )) {
+ bb_perror_msg_and_die("VT_DISALLOCATE");
}
- return EXIT_FAILURE;
+ return EXIT_SUCCESS;
}