1 /* vi: set sw=4 ts=4: */
3 * openvt.c - open a vt to run a command.
5 * busyboxed by Quy Tonthat <quy@signal3.com>
6 * hacked by Tito <farmatito@tiscali.it>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 /* getopt not needed */
30 #include <sys/types.h>
35 #define VTNAME "/dev/tty%d"
37 int openvt_main(int argc, char **argv)
42 char vtname[sizeof VTNAME + 2];
48 if (!isdigit(argv[1][0]))
51 vtno = (int) atol(argv[1]);
53 /* if (vtno <= 0 || vtno > 63) */
54 if (vtno <= 0 || vtno > 12)
55 bb_error_msg_and_die("Illegal vt number (%d)", vtno);
57 sprintf(vtname, VTNAME, vtno);
62 if((pid = fork()) == 0) {
63 /* leave current vt */
71 bb_perror_msg_and_die("Unable to set new session");
73 close(0); /* so that new vt becomes stdin */
75 /* and grab new one */
76 if ((fd = open(vtname, O_RDWR)) == -1)
77 bb_perror_msg_and_die("could not open %s", vtname);
79 /* Reassign stdout and sterr */
85 execvp(argv[0], argv);